Add SQLite support, fix un-thread-safe DB caches, small performance f… (#172)

* Add SQLite support, fix un-thread-safe DB caches, small performance fixes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add SQLite licenses to README

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* appease the linter, and fix my dumbass-ery

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* make requested changes

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

* add back comment

Signed-off-by: kim (grufwub) <grufwub@gmail.com>

README.md

@@ -148,6 +148,9 @@ The following libraries and frameworks are used by GoToSocial, with gratitude
 * [uptrace/bun](https://github.com/uptrace/bun); database ORM. [BSD-2-Clause License](https://spdx.org/licenses/BSD-2-Clause.html).
 * [urfave/cli](https://github.com/urfave/cli); command-line interface framework. [MIT License](https://spdx.org/licenses/MIT.html).
 * [wagslane/go-password-validator](https://github.com/wagslane/go-password-validator); password strength validation. [MIT License](https://spdx.org/licenses/MIT.html).
+* [modernc.org/sqlite](sqlite); cgo-free port of SQLite. [Other License](https://gitlab.com/cznic/sqlite/-/blob/master/LICENSE).
+  * [modernc.org/ccgo](ccgo); c99 AST -> Go translater. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
+  * [modernc.org/libc](libc); C-runtime services. [BSD-3-Clause License](https://spdx.org/licenses/BSD-3-Clause.html).
 
 ### Image Attribution
 

go.mod

@@ -29,6 +29,7 @@ require (
 	github.com/gorilla/sessions v1.2.1 // indirect
 	github.com/gorilla/websocket v1.4.2
 	github.com/h2non/filetype v1.1.1
+	github.com/jackc/pgconn v1.10.0
 	github.com/jackc/pgx/v4 v4.13.0
 	github.com/json-iterator/go v1.1.11 // indirect
 	github.com/leodido/go-urn v1.2.1 // indirect
@@ -48,15 +49,21 @@ require (
 	github.com/tidwall/buntdb v1.2.4 // indirect
 	github.com/uptrace/bun v0.4.3
 	github.com/uptrace/bun/dialect/pgdialect v0.4.3
+	github.com/uptrace/bun/dialect/sqlitedialect v0.4.3
 	github.com/urfave/cli/v2 v2.3.0
 	github.com/wagslane/go-password-validator v0.3.0
 	golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97
+	golang.org/x/mod v0.5.0 // indirect
 	golang.org/x/oauth2 v0.0.0-20210628180205-a41e5a781914
-	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c // indirect
+	golang.org/x/sys v0.0.0-20210823070655-63515b42dcdf // indirect
 	golang.org/x/text v0.3.6
+	golang.org/x/tools v0.1.5 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v2 v2.4.0
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+	modernc.org/ccgo/v3 v3.10.1 // indirect
+	modernc.org/libc v1.10.0 // indirect
+	modernc.org/sqlite v1.12.0
 	mvdan.cc/xurls/v2 v2.3.0
 )

go.sum

@@ -102,6 +102,7 @@ github.com/dsoprea/go-utility v0.0.0-20200711062821-fab8125e9bdf/go.mod h1:95+K3
 github.com/dsoprea/go-utility v0.0.0-20200717064901-2fccff4aa15e h1:ojqYA1mU6LuRm8XzrVOvyfb000y59cbUcu6Wt8sFSAs=
 github.com/dsoprea/go-utility v0.0.0-20200717064901-2fccff4aa15e/go.mod h1:KVK+/Hul09ujXAGq+42UBgCTnXkiJZRnLYdURGjQUwo=
 github.com/dsoprea/go-utility/v2 v2.0.0-20200717064901-2fccff4aa15e/go.mod h1:uAzdkPTub5Y9yQwXe8W4m2XuP0tK4a9Q/dantD0+uaU=
+github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@@ -202,6 +203,7 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.4.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
@@ -303,6 +305,8 @@ github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/X
 github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88/go.mod h1:3w7q1U84EfirKl04SVQ/s7nPm1ZPhiXd34z40TNz36k=
+github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs=
+github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
 github.com/kidstuff/mongostore v0.0.0-20181113001930-e650cd85ee4b/go.mod h1:g2nVr8KZVXJSS97Jo8pJ0jgq29P6H7dG0oplUA86MQw=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/klauspost/compress v1.10.4/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
@@ -336,6 +340,8 @@ github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2y
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/mattn/go-isatty v0.0.13 h1:qdl+GuBjcsKKDco5BsxPJlId98mSWNKqYA+Co0SC1yA=
 github.com/mattn/go-isatty v0.0.13/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-sqlite3 v1.14.8 h1:gDp86IdQsN/xWjIEmr9MF6o9mpksUgh0fu+9ByFxzIU=
+github.com/mattn/go-sqlite3 v1.14.8/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
 github.com/memcachier/mc v2.0.1+incompatible/go.mod h1:7bkvFE61leUBvXz+yxsOnGBQSZpBSPIMUQSmmSHvuXc=
 github.com/microcosm-cc/bluemonday v1.0.15 h1:J4uN+qPng9rvkBZBoBb8YGR+ijuklIMpSOZZLjYpbeY=
 github.com/microcosm-cc/bluemonday v1.0.15/go.mod h1:ZLvAzeakRwrGnzQEvstVzVt3ZpqOF2+sdFr0Om+ce30=
@@ -366,6 +372,8 @@ github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:
 github.com/quasoft/memstore v0.0.0-20180925164028-84a050167438/go.mod h1:wTPjTepVu7uJBYgZ0SdWHQlIas582j6cn2jgk4DDdlg=
 github.com/quasoft/memstore v0.0.0-20191010062613-2bce066d2b0b h1:aUNXCGgukb4gtY99imuIeoh8Vr0GSwAlYxPAhqZrpFc=
 github.com/quasoft/memstore v0.0.0-20191010062613-2bce066d2b0b/go.mod h1:wTPjTepVu7uJBYgZ0SdWHQlIas582j6cn2jgk4DDdlg=
+github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 h1:OdAsTTz6OkFY5QxjkYwrChwuRruF69c169dPK26NUlk=
+github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE=
 github.com/rs/xid v1.2.1/go.mod h1:+uKXf+4Djp6Md1KODXJxgGQPKngRmWyn10oCKFzNHOQ=
@@ -450,6 +458,8 @@ github.com/uptrace/bun v0.4.3 h1:x6bjDqwjxwM/9Q1eauhkznuvTrz/rLiCK2p4tT63sAE=
 github.com/uptrace/bun v0.4.3/go.mod h1:aL6D9vPw8DXaTQTwGrEPtUderBYXx7ShUmPfnxnqscw=
 github.com/uptrace/bun/dialect/pgdialect v0.4.3 h1:lM2IUKpU99110chKkupw3oTfXiOKpB0hTJIe6frqQDo=
 github.com/uptrace/bun/dialect/pgdialect v0.4.3/go.mod h1:BaNvWejl32oKUhwpFkw/eNcWldzIlVY4nfw/sNul0s8=
+github.com/uptrace/bun/dialect/sqlitedialect v0.4.3 h1:h+vqLGCeY22PFrbCOpQqK5+/p1qWCXYIhIUm/D5Vw08=
+github.com/uptrace/bun/dialect/sqlitedialect v0.4.3/go.mod h1:W9zHzVl9lJwWHx038vHs7ddVJ6LbNebseLZ3UGAqeAk=
 github.com/urfave/cli/v2 v2.3.0 h1:qph92Y649prgesehzOrQjdWyxFOp/QVM+6imKHad91M=
 github.com/urfave/cli/v2 v2.3.0/go.mod h1:LJmUH05zAU44vOAcrfzZQKsZbVcdbOG8rtL3/XcUArI=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
@@ -479,6 +489,7 @@ github.com/yudai/pp v2.0.1+incompatible/go.mod h1:PuxR/8QJ7cyCkFp/aUDS+JY727OFEZ
 github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/zenazn/goji v0.9.0/go.mod h1:7S9M489iMyHBNxwZnk9/EHS098H4/F6TATF2mIxtB1Q=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
@@ -542,6 +553,8 @@ golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzB
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.5.0 h1:UG21uOlmZabA4fW5i7ZX6bjw1xELEGg/ZLgZq9auk/Q=
+golang.org/x/mod v0.5.0/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -573,6 +586,7 @@ golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/
 golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
+golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210614182718-04defd469f4e h1:XpT3nA5TvE525Ne3hInMh6+GETgn27Zfm9dxsThnX2Q=
@@ -592,6 +606,7 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180525142821-c11f84a56e43/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -632,14 +647,17 @@ golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200803210538-64077c9b5642/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201126233918-771906719818/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
+golang.org/x/sys v0.0.0-20210823070655-63515b42dcdf h1:2ucpDCmfkl8Bd/FsLtiD653Wf96cW37s+iGx93zsu4k=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210823070655-63515b42dcdf/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
@@ -700,7 +718,10 @@ golang.org/x/tools v0.0.0-20200618134242-20370b0cb4b2/go.mod h1:EkVYQZoAsY45+roY
 golang.org/x/tools v0.0.0-20200729194436-6467de6f59a7/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
 golang.org/x/tools v0.0.0-20200804011535-6c149bb5ef0d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
 golang.org/x/tools v0.0.0-20200825202427-b303f430e36d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
+golang.org/x/tools v0.0.0-20201124115921-2c860bdd6e78/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/tools v0.1.5 h1:ouewzE6p+/VEB31YYnTbEJdi8pFqKp4P4n85vwo3DHA=
+golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -818,6 +839,45 @@ honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
+lukechampine.com/uint128 v1.1.1 h1:pnxCASz787iMf+02ssImqk6OLt+Z5QHMoZyUXR4z6JU=
+lukechampine.com/uint128 v1.1.1/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
+modernc.org/cc/v3 v3.33.6/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
+modernc.org/cc/v3 v3.33.7/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
+modernc.org/cc/v3 v3.33.9/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
+modernc.org/cc/v3 v3.33.11 h1:Fc7goiKCzfHvGR4WZbVLWIh/4VhJE2Z31Jkg36Ezp7Q=
+modernc.org/cc/v3 v3.33.11/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
+modernc.org/ccgo/v3 v3.9.5/go.mod h1:umuo2EP2oDSBnD3ckjaVUXMrmeAw8C8OSICVa0iFf60=
+modernc.org/ccgo/v3 v3.9.6/go.mod h1:KGOi0NhaT6CO19xeSXcpXBl0OkoD6T1U4dPd633G9Sg=
+modernc.org/ccgo/v3 v3.10.0/go.mod h1:c0yBmkRFi7uW4J7fwx/JiijwOjeAeR2NoSaRVFPmjMw=
+modernc.org/ccgo/v3 v3.10.1 h1:iS/P/unYVUpy7aAxy4Xj8BTy8afdyN1P54Ez2LlUmFI=
+modernc.org/ccgo/v3 v3.10.1/go.mod h1:Z+DnGxGOZEvVjdehbO78XHAIWGxyTxzuz668w3SgiiQ=
+modernc.org/httpfs v1.0.6 h1:AAgIpFZRXuYnkjftxTAZwMIiwEqAfk8aVB2/oA6nAeM=
+modernc.org/httpfs v1.0.6/go.mod h1:7dosgurJGp0sPaRanU53W4xZYKh14wfzX420oZADeHM=
+modernc.org/libc v1.7.13-0.20210308123627-12f642a52bb8/go.mod h1:U1eq8YWr/Kc1RWCMFUWEdkTg8OTcfLw2kY8EDwl039w=
+modernc.org/libc v1.9.8/go.mod h1:U1eq8YWr/Kc1RWCMFUWEdkTg8OTcfLw2kY8EDwl039w=
+modernc.org/libc v1.9.11/go.mod h1:NyF3tsA5ArIjJ83XB0JlqhjTabTCHm9aX4XMPHyQn0Q=
+modernc.org/libc v1.10.0 h1:VY0vRYW7BMx9vhF3ZvdgmjFOdRrV3EpjUFlRu+5O9FM=
+modernc.org/libc v1.10.0/go.mod h1:0/Nct1oFfLhjihlkmiJvALxOyV2rlkJ7/OZk1ni+WDQ=
+modernc.org/mathutil v1.1.1/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
+modernc.org/mathutil v1.2.2/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
+modernc.org/mathutil v1.4.0/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
+modernc.org/mathutil v1.4.1 h1:ij3fYGe8zBF4Vu+g0oT7mB06r8sqGWKuJu1yXeR4by8=
+modernc.org/mathutil v1.4.1/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
+modernc.org/memory v1.0.4/go.mod h1:nV2OApxradM3/OVbs2/0OsP6nPfakXpi50C7dcoHXlc=
+modernc.org/memory v1.0.5 h1:XRch8trV7GgvTec2i7jc33YlUI0RKVDBvZ5eZ5m8y14=
+modernc.org/memory v1.0.5/go.mod h1:B7OYswTRnfGg+4tDH1t1OeUNnsy2viGTdME4tzd+IjM=
+modernc.org/opt v0.1.1 h1:/0RX92k9vwVeDXj+Xn23DKp2VJubL7k8qNffND6qn3A=
+modernc.org/opt v0.1.1/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
+modernc.org/sqlite v1.12.0 h1:AMAOgk4CkblRJc6YLKSYtz3pZ6DW5wjQ1uYH/rN7/Kk=
+modernc.org/sqlite v1.12.0/go.mod h1:ppqJ4cQ+R09YLzl9haEL9AYgj6wX8FcfwDTOI0nYykU=
+modernc.org/strutil v1.1.1 h1:xv+J1BXY3Opl2ALrBwyfEikFAj8pmqcpnfmuwUwcozs=
+modernc.org/strutil v1.1.1/go.mod h1:DE+MQQ/hjKBZS2zNInV5hhcipt5rLPWkmpbGeW5mmdw=
+modernc.org/tcl v1.5.5 h1:N03RwthgTR/l/eQvz3UjfYnvVVj1G2sZqzFGfoD4HE4=
+modernc.org/tcl v1.5.5/go.mod h1:ADkaTUuwukkrlhqwERyq0SM8OvyXo7+TjFz7yAF56EI=
+modernc.org/token v1.0.0 h1:a0jaWiNMDhDUtqOj09wvjWWAqd3q7WpBulmL9H2egsk=
+modernc.org/token v1.0.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
+modernc.org/z v1.0.1 h1:WyIDpEpAIx4Hel6q/Pcgj/VhaQV5XPJ2I6ryIYbjnpc=
+modernc.org/z v1.0.1/go.mod h1:8/SRk5C/HgiQWCgXdfpb+1RvhORdkz5sw72d3jjtyqA=
 mvdan.cc/xurls/v2 v2.3.0 h1:59Olnbt67UKpxF1EwVBopJvkSUBmgtb468E4GVWIZ1I=
 mvdan.cc/xurls/v2 v2.3.0/go.mod h1:AjuTy7gEiUArFMjgBBDU4SMxlfUYsRokpJQgNWOt3e4=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=

internal/cache/status.go

@@ -0,0 +1,106 @@
+package cache
+
+import (
+	"sync"
+
+	"github.com/ReneKroon/ttlcache"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+)
+
+// statusCache is a wrapper around ttlcache.Cache to provide URL and URI lookups for gtsmodel.Status
+type StatusCache struct {
+	cache *ttlcache.Cache   // map of IDs -> cached statuses
+	urls  map[string]string // map of status URLs -> IDs
+	uris  map[string]string // map of status URIs -> IDs
+	mutex sync.Mutex
+}
+
+// newStatusCache returns a new instantiated statusCache object
+func NewStatusCache() *StatusCache {
+	c := StatusCache{
+		cache: ttlcache.NewCache(),
+		urls:  make(map[string]string, 100),
+		uris:  make(map[string]string, 100),
+		mutex: sync.Mutex{},
+	}
+
+	// Set callback to purge lookup maps on expiration
+	c.cache.SetExpirationCallback(func(key string, value interface{}) {
+		status := value.(*gtsmodel.Status)
+
+		c.mutex.Lock()
+		delete(c.urls, status.URL)
+		delete(c.uris, status.URI)
+		c.mutex.Unlock()
+	})
+
+	return &c
+}
+
+// GetByID attempts to fetch a status from the cache by its ID
+func (c *StatusCache) GetByID(id string) (*gtsmodel.Status, bool) {
+	c.mutex.Lock()
+	status, ok := c.getByID(id)
+	c.mutex.Unlock()
+	return status, ok
+}
+
+// GetByURL attempts to fetch a status from the cache by its URL
+func (c *StatusCache) GetByURL(url string) (*gtsmodel.Status, bool) {
+	// Perform safe ID lookup
+	c.mutex.Lock()
+	id, ok := c.urls[url]
+
+	// Not found, unlock early
+	if !ok {
+		c.mutex.Unlock()
+		return nil, false
+	}
+
+	// Attempt status lookup
+	status, ok := c.getByID(id)
+	c.mutex.Unlock()
+	return status, ok
+}
+
+// GetByURI attempts to fetch a status from the cache by its URI
+func (c *StatusCache) GetByURI(uri string) (*gtsmodel.Status, bool) {
+	// Perform safe ID lookup
+	c.mutex.Lock()
+	id, ok := c.uris[uri]
+
+	// Not found, unlock early
+	if !ok {
+		c.mutex.Unlock()
+		return nil, false
+	}
+
+	// Attempt status lookup
+	status, ok := c.getByID(id)
+	c.mutex.Unlock()
+	return status, ok
+}
+
+// getByID performs an unsafe (no mutex locks) lookup of status by ID
+func (c *StatusCache) getByID(id string) (*gtsmodel.Status, bool) {
+	v, ok := c.cache.Get(id)
+	if !ok {
+		return nil, false
+	}
+	return v.(*gtsmodel.Status), true
+}
+
+// Put places a status in the cache
+func (c *StatusCache) Put(status *gtsmodel.Status) {
+	if status == nil || status.ID == "" ||
+		status.URL == "" ||
+		status.URI == "" {
+		panic("invalid status")
+	}
+
+	c.mutex.Lock()
+	c.cache.Set(status.ID, status)
+	c.urls[status.URL] = status.ID
+	c.uris[status.URI] = status.ID
+	c.mutex.Unlock()
+}

internal/cache/status_test.go

@@ -0,0 +1,41 @@
+package cache_test
+
+import (
+	"testing"
+
+	"github.com/superseriousbusiness/gotosocial/internal/cache"
+	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
+)
+
+func TestStatusCache(t *testing.T) {
+	cache := cache.NewStatusCache()
+
+	// Attempt to place a status
+	status := gtsmodel.Status{
+		ID:  "id",
+		URI: "uri",
+		URL: "url",
+	}
+	cache.Put(&status)
+
+	var ok bool
+	var check *gtsmodel.Status
+
+	// Check we can retrieve
+	check, ok = cache.GetByID(status.ID)
+	if !ok || !statusIs(&status, check) {
+		t.Fatal("Could not find expected status")
+	}
+	check, ok = cache.GetByURI(status.URI)
+	if !ok || !statusIs(&status, check) {
+		t.Fatal("Could not find expected status")
+	}
+	check, ok = cache.GetByURL(status.URL)
+	if !ok || !statusIs(&status, check) {
+		t.Fatal("Could not find expected status")
+	}
+}
+
+func statusIs(status1, status2 *gtsmodel.Status) bool {
+	return status1.ID == status2.ID && status1.URI == status2.URI && status1.URL == status2.URL
+}

internal/db/bundb/account.go

@@ -25,7 +25,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@@ -34,8 +33,7 @@ import (
 
 type accountDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 func (a *accountDB) newAccountQ(account *gtsmodel.Account) *bun.SelectQuery {
@@ -52,9 +50,11 @@ func (a *accountDB) GetAccountByID(ctx context.Context, id string) (*gtsmodel.Ac
 	q := a.newAccountQ(account).
 		Where("account.id = ?", id)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return account, err
+		return nil, a.conn.ProcessError(err)
+	}
+	return account, nil
 }
 
 func (a *accountDB) GetAccountByURI(ctx context.Context, uri string) (*gtsmodel.Account, db.Error) {
@@ -63,9 +63,11 @@ func (a *accountDB) GetAccountByURI(ctx context.Context, uri string) (*gtsmodel.
 	q := a.newAccountQ(account).
 		Where("account.uri = ?", uri)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return account, err
+		return nil, a.conn.ProcessError(err)
+	}
+	return account, nil
 }
 
 func (a *accountDB) GetAccountByURL(ctx context.Context, uri string) (*gtsmodel.Account, db.Error) {
@@ -74,9 +76,11 @@ func (a *accountDB) GetAccountByURL(ctx context.Context, uri string) (*gtsmodel.
 	q := a.newAccountQ(account).
 		Where("account.url = ?", uri)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return account, err
+		return nil, a.conn.ProcessError(err)
+	}
+	return account, nil
 }
 
 func (a *accountDB) UpdateAccount(ctx context.Context, account *gtsmodel.Account) (*gtsmodel.Account, db.Error) {
@@ -92,10 +96,10 @@ func (a *accountDB) UpdateAccount(ctx context.Context, account *gtsmodel.Account
 		WherePK()
 
 	_, err := q.Exec(ctx)
-
+	if err != nil {
-	err = processErrorResponse(err)
+		return nil, a.conn.ProcessError(err)
-
+	}
-	return account, err
+	return account, nil
 }
 
 func (a *accountDB) GetInstanceAccount(ctx context.Context, domain string) (*gtsmodel.Account, db.Error) {
@@ -113,9 +117,11 @@ func (a *accountDB) GetInstanceAccount(ctx context.Context, domain string) (*gts
 			WhereGroup(" AND ", whereEmptyOrNull("domain"))
 	}
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return account, err
+		return nil, a.conn.ProcessError(err)
+	}
+	return account, nil
 }
 
 func (a *accountDB) GetAccountLastPosted(ctx context.Context, accountID string) (time.Time, db.Error) {
@@ -129,9 +135,11 @@ func (a *accountDB) GetAccountLastPosted(ctx context.Context, accountID string)
 		Where("account_id = ?", accountID).
 		Column("created_at")
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return status.CreatedAt, err
+		return time.Time{}, a.conn.ProcessError(err)
+	}
+	return status.CreatedAt, nil
 }
 
 func (a *accountDB) SetAccountHeaderOrAvatar(ctx context.Context, mediaAttachment *gtsmodel.MediaAttachment, accountID string) db.Error {
@@ -153,17 +161,17 @@ func (a *accountDB) SetAccountHeaderOrAvatar(ctx context.Context, mediaAttachmen
 		NewInsert().
 		Model(mediaAttachment).
 		Exec(ctx); err != nil {
-		return err
+		return a.conn.ProcessError(err)
 	}
-
 	if _, err := a.conn.
 		NewUpdate().
 		Model(&gtsmodel.Account{}).
 		Set(fmt.Sprintf("%s_media_attachment_id = ?", headerOrAVI), mediaAttachment.ID).
 		Where("id = ?", accountID).
 		Exec(ctx); err != nil {
-		return err
+		return a.conn.ProcessError(err)
 	}
+
 	return nil
 }
 
@@ -174,9 +182,11 @@ func (a *accountDB) GetLocalAccountByUsername(ctx context.Context, username stri
 		Where("username = ?", username).
 		WhereGroup(" AND ", whereEmptyOrNull("domain"))
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return account, err
+		return nil, a.conn.ProcessError(err)
+	}
+	return account, nil
 }
 
 func (a *accountDB) GetAccountFaves(ctx context.Context, accountID string) ([]*gtsmodel.StatusFave, db.Error) {
@@ -187,8 +197,9 @@ func (a *accountDB) GetAccountFaves(ctx context.Context, accountID string) ([]*g
 		Model(faves).
 		Where("account_id = ?", accountID).
 		Scan(ctx); err != nil {
-		return nil, err
+		return nil, a.conn.ProcessError(err)
 	}
+
 	return *faves, nil
 }
 
@@ -201,7 +212,6 @@ func (a *accountDB) CountAccountStatuses(ctx context.Context, accountID string)
 }
 
 func (a *accountDB) GetAccountStatuses(ctx context.Context, accountID string, limit int, excludeReplies bool, maxID string, pinnedOnly bool, mediaOnly bool) ([]*gtsmodel.Status, db.Error) {
-	a.log.Debugf("getting statuses for account %s", accountID)
 	statuses := []*gtsmodel.Status{}
 
 	q := a.conn.
@@ -238,14 +248,13 @@ func (a *accountDB) GetAccountStatuses(ctx context.Context, accountID string, li
 	}
 
 	if err := q.Scan(ctx); err != nil {
-		return nil, err
+		return nil, a.conn.ProcessError(err)
 	}
 
 	if len(statuses) == 0 {
 		return nil, db.ErrNoEntries
 	}
 
-	a.log.Debugf("returning statuses for account %s", accountID)
 	return statuses, nil
 }
 
@@ -273,7 +282,7 @@ func (a *accountDB) GetAccountBlocks(ctx context.Context, accountID string, maxI
 
 	err := fq.Scan(ctx)
 	if err != nil {
-		return nil, "", "", err
+		return nil, "", "", a.conn.ProcessError(err)
 	}
 
 	if len(blocks) == 0 {

internal/db/bundb/admin.go

@@ -29,20 +29,17 @@ import (
 	"strings"
 	"time"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
 	"github.com/superseriousbusiness/gotosocial/internal/id"
 	"github.com/superseriousbusiness/gotosocial/internal/util"
-	"github.com/uptrace/bun"
 	"golang.org/x/crypto/bcrypt"
 )
 
 type adminDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 func (a *adminDB) IsUsernameAvailable(ctx context.Context, username string) (bool, db.Error) {
@@ -52,7 +49,7 @@ func (a *adminDB) IsUsernameAvailable(ctx context.Context, username string) (boo
 		Where("username = ?", username).
 		Where("domain = ?", nil)
 
-	return notExists(ctx, q)
+	return a.conn.NotExists(ctx, q)
 }
 
 func (a *adminDB) IsEmailAvailable(ctx context.Context, email string) (bool, db.Error) {
@@ -72,7 +69,7 @@ func (a *adminDB) IsEmailAvailable(ctx context.Context, email string) (bool, db.
 		// fail because we found something
 		return false, fmt.Errorf("email domain %s is blocked", domain)
 	} else if err != sql.ErrNoRows {
-		return false, processErrorResponse(err)
+		return false, a.conn.ProcessError(err)
 	}
 
 	// check if this email is associated with a user already
@@ -82,13 +79,13 @@ func (a *adminDB) IsEmailAvailable(ctx context.Context, email string) (bool, db.
 		Where("email = ?", email).
 		WhereOr("unconfirmed_email = ?", email)
 
-	return notExists(ctx, q)
+	return a.conn.NotExists(ctx, q)
 }
 
 func (a *adminDB) NewSignup(ctx context.Context, username string, reason string, requireApproval bool, email string, password string, signUpIP net.IP, locale string, appID string, emailVerified bool, admin bool) (*gtsmodel.User, db.Error) {
 	key, err := rsa.GenerateKey(rand.Reader, 2048)
 	if err != nil {
-		a.log.Errorf("error creating new rsa key: %s", err)
+		a.conn.log.Errorf("error creating new rsa key: %s", err)
 		return nil, err
 	}
 
@@ -128,7 +125,7 @@ func (a *adminDB) NewSignup(ctx context.Context, username string, reason string,
 			NewInsert().
 			Model(acct).
 			Exec(ctx); err != nil {
-			return nil, err
+			return nil, a.conn.ProcessError(err)
 		}
 	}
 
@@ -167,7 +164,7 @@ func (a *adminDB) NewSignup(ctx context.Context, username string, reason string,
 		NewInsert().
 		Model(u).
 		Exec(ctx); err != nil {
-		return nil, err
+		return nil, a.conn.ProcessError(err)
 	}
 
 	return u, nil
@@ -184,15 +181,15 @@ func (a *adminDB) CreateInstanceAccount(ctx context.Context) db.Error {
 		WhereGroup(" AND ", whereEmptyOrNull("domain"))
 	count, err := existsQ.Count(ctx)
 	if err != nil && count == 1 {
-		a.log.Infof("instance account %s already exists", username)
+		a.conn.log.Infof("instance account %s already exists", username)
 		return nil
 	} else if err != sql.ErrNoRows {
-		return processErrorResponse(err)
+		return a.conn.ProcessError(err)
 	}
 
 	key, err := rsa.GenerateKey(rand.Reader, 2048)
 	if err != nil {
-		a.log.Errorf("error creating new rsa key: %s", err)
+		a.conn.log.Errorf("error creating new rsa key: %s", err)
 		return err
 	}
 
@@ -224,10 +221,10 @@ func (a *adminDB) CreateInstanceAccount(ctx context.Context) db.Error {
 		Model(acct)
 
 	if _, err := insertQ.Exec(ctx); err != nil {
-		return err
+		return a.conn.ProcessError(err)
 	}
 
-	a.log.Infof("instance account %s CREATED with id %s", username, acct.ID)
+	a.conn.log.Infof("instance account %s CREATED with id %s", username, acct.ID)
 	return nil
 }
 
@@ -240,12 +237,12 @@ func (a *adminDB) CreateInstanceInstance(ctx context.Context) db.Error {
 		Model(&gtsmodel.Instance{}).
 		Where("domain = ?", domain)
 
-	exists, err := exists(ctx, q)
+	exists, err := a.conn.Exists(ctx, q)
 	if err != nil {
 		return err
 	}
 	if exists {
-		a.log.Infof("instance entry already exists")
+		a.conn.log.Infof("instance entry already exists")
 		return nil
 	}
 
@@ -266,10 +263,10 @@ func (a *adminDB) CreateInstanceInstance(ctx context.Context) db.Error {
 		Model(i)
 
 	_, err = insertQ.Exec(ctx)
-	err = processErrorResponse(err)
+	if err != nil {
+		return a.conn.ProcessError(err)
+	}
 
-	if err == nil {
+	a.conn.log.Infof("created instance instance %s with id %s", domain, i.ID)
-		a.log.Infof("created instance instance %s with id %s", domain, i.ID)
+	return nil
-	}
-	return err
 }

internal/db/bundb/basic.go

@@ -21,9 +21,7 @@ package bundb
 import (
 	"context"
 	"errors"
-	"strings"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/uptrace/bun"
@@ -31,16 +29,12 @@ import (
 
 type basicDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 func (b *basicDB) Put(ctx context.Context, i interface{}) db.Error {
 	_, err := b.conn.NewInsert().Model(i).Exec(ctx)
-	if err != nil && strings.Contains(err.Error(), "duplicate key value violates unique constraint") {
+	return b.conn.ProcessError(err)
-		return db.ErrAlreadyExists
-	}
-	return err
 }
 
 func (b *basicDB) GetByID(ctx context.Context, id string, i interface{}) db.Error {
@@ -49,7 +43,8 @@ func (b *basicDB) GetByID(ctx context.Context, id string, i interface{}) db.Erro
 		Model(i).
 		Where("id = ?", id)
 
-	return processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
+	return b.conn.ProcessError(err)
 }
 
 func (b *basicDB) GetWhere(ctx context.Context, where []db.Where, i interface{}) db.Error {
@@ -59,7 +54,6 @@ func (b *basicDB) GetWhere(ctx context.Context, where []db.Where, i interface{})
 
 	q := b.conn.NewSelect().Model(i)
 	for _, w := range where {
-
 		if w.Value == nil {
 			q = q.Where("? IS NULL", bun.Ident(w.Key))
 		} else {
@@ -71,7 +65,8 @@ func (b *basicDB) GetWhere(ctx context.Context, where []db.Where, i interface{})
 		}
 	}
 
-	return processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
+	return b.conn.ProcessError(err)
 }
 
 func (b *basicDB) GetAll(ctx context.Context, i interface{}) db.Error {
@@ -79,7 +74,8 @@ func (b *basicDB) GetAll(ctx context.Context, i interface{}) db.Error {
 		NewSelect().
 		Model(i)
 
-	return processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
+	return b.conn.ProcessError(err)
 }
 
 func (b *basicDB) DeleteByID(ctx context.Context, id string, i interface{}) db.Error {
@@ -89,8 +85,7 @@ func (b *basicDB) DeleteByID(ctx context.Context, id string, i interface{}) db.E
 		Where("id = ?", id)
 
 	_, err := q.Exec(ctx)
-
+	return b.conn.ProcessError(err)
-	return processErrorResponse(err)
 }
 
 func (b *basicDB) DeleteWhere(ctx context.Context, where []db.Where, i interface{}) db.Error {
@@ -107,8 +102,7 @@ func (b *basicDB) DeleteWhere(ctx context.Context, where []db.Where, i interface
 	}
 
 	_, err := q.Exec(ctx)
-
+	return b.conn.ProcessError(err)
-	return processErrorResponse(err)
 }
 
 func (b *basicDB) UpdateByID(ctx context.Context, id string, i interface{}) db.Error {
@@ -118,8 +112,7 @@ func (b *basicDB) UpdateByID(ctx context.Context, id string, i interface{}) db.E
 		WherePK()
 
 	_, err := q.Exec(ctx)
-
+	return b.conn.ProcessError(err)
-	return processErrorResponse(err)
 }
 
 func (b *basicDB) UpdateOneByID(ctx context.Context, id string, key string, value interface{}, i interface{}) db.Error {
@@ -129,8 +122,7 @@ func (b *basicDB) UpdateOneByID(ctx context.Context, id string, key string, valu
 		WherePK()
 
 	_, err := q.Exec(ctx)
-
+	return b.conn.ProcessError(err)
-	return processErrorResponse(err)
 }
 
 func (b *basicDB) UpdateWhere(ctx context.Context, where []db.Where, key string, value interface{}, i interface{}) db.Error {
@@ -151,8 +143,7 @@ func (b *basicDB) UpdateWhere(ctx context.Context, where []db.Where, key string,
 	q = q.Set("? = ?", bun.Safe(key), value)
 
 	_, err := q.Exec(ctx)
-
+	return b.conn.ProcessError(err)
-	return processErrorResponse(err)
 }
 
 func (b *basicDB) CreateTable(ctx context.Context, i interface{}) db.Error {
@@ -162,7 +153,7 @@ func (b *basicDB) CreateTable(ctx context.Context, i interface{}) db.Error {
 
 func (b *basicDB) DropTable(ctx context.Context, i interface{}) db.Error {
 	_, err := b.conn.NewDropTable().Model(i).IfExists().Exec(ctx)
-	return processErrorResponse(err)
+	return b.conn.ProcessError(err)
 }
 
 func (b *basicDB) IsHealthy(ctx context.Context) db.Error {
@@ -170,10 +161,6 @@ func (b *basicDB) IsHealthy(ctx context.Context) db.Error {
 }
 
 func (b *basicDB) Stop(ctx context.Context) db.Error {
-	b.log.Info("closing db connection")
+	b.conn.log.Info("closing db connection")
-	if err := b.conn.Close(); err != nil {
+	return b.conn.Close()
-		// only cancel if there's a problem closing the db
-		return err
-	}
-	return nil
 }

internal/db/bundb/bundb.go

@@ -30,15 +30,19 @@ import (
 	"strings"
 	"time"
 
+	"github.com/ReneKroon/ttlcache"
 	"github.com/jackc/pgx/v4"
 	"github.com/jackc/pgx/v4/stdlib"
 	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/cache"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
 	"github.com/superseriousbusiness/gotosocial/internal/id"
 	"github.com/uptrace/bun"
 	"github.com/uptrace/bun/dialect/pgdialect"
+	"github.com/uptrace/bun/dialect/sqlitedialect"
+	_ "modernc.org/sqlite"
 )
 
 const (
@@ -66,15 +70,14 @@ type bunDBService struct {
 	db.Status
 	db.Timeline
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 // NewBunDBService returns a bunDB derived from the provided config, which implements the go-fed DB interface.
 // Under the hood, it uses https://github.com/uptrace/bun to create and maintain a database connection.
 func NewBunDBService(ctx context.Context, c *config.Config, log *logrus.Logger) (db.DB, error) {
 	var sqldb *sql.DB
-	var conn *bun.DB
+	var conn *DBConn
 
 	// depending on the database type we're trying to create, we need to use a different driver...
 	switch strings.ToLower(c.DBConfig.Type) {
@@ -85,10 +88,24 @@ func NewBunDBService(ctx context.Context, c *config.Config, log *logrus.Logger)
 			return nil, fmt.Errorf("could not create bundb postgres options: %s", err)
 		}
 		sqldb = stdlib.OpenDB(*opts)
-		conn = bun.NewDB(sqldb, pgdialect.New())
+		conn = WrapDBConn(bun.NewDB(sqldb, pgdialect.New()), log)
 	case dbTypeSqlite:
 		// SQLITE
-		// TODO: https://bun.uptrace.dev/guide/drivers.html#sqlite
+		var err error
+		sqldb, err = sql.Open("sqlite", c.DBConfig.Address)
+		if err != nil {
+			return nil, fmt.Errorf("could not open sqlite db: %s", err)
+		}
+		conn = WrapDBConn(bun.NewDB(sqldb, sqlitedialect.New()), log)
+
+		if strings.HasPrefix(strings.TrimPrefix(c.DBConfig.Address, "file:"), ":memory:") {
+			log.Warn("sqlite in-memory database should only be used for debugging")
+
+			// don't close connections on disconnect -- otherwise
+			// the SQLite database will be deleted when there
+			// are no active connections
+			sqldb.SetConnMaxLifetime(0)
+		}
 	default:
 		return nil, fmt.Errorf("database type %s not supported for bundb", strings.ToLower(c.DBConfig.Type))
 	}
@@ -108,66 +125,56 @@ func NewBunDBService(ctx context.Context, c *config.Config, log *logrus.Logger)
 		Account: &accountDB{
 			config: c,
 			conn:   conn,
-			log:    log,
 		},
 		Admin: &adminDB{
 			config: c,
 			conn:   conn,
-			log:    log,
 		},
 		Basic: &basicDB{
 			config: c,
 			conn:   conn,
-			log:    log,
 		},
 		Domain: &domainDB{
 			config: c,
 			conn:   conn,
-			log:    log,
 		},
 		Instance: &instanceDB{
 			config: c,
 			conn:   conn,
-			log:    log,
 		},
 		Media: &mediaDB{
 			config: c,
 			conn:   conn,
-			log:    log,
 		},
 		Mention: &mentionDB{
 			config: c,
 			conn:   conn,
-			log:    log,
+			cache:  ttlcache.NewCache(),
 		},
 		Notification: &notificationDB{
 			config: c,
 			conn:   conn,
-			log:    log,
+			cache:  ttlcache.NewCache(),
 		},
 		Relationship: &relationshipDB{
 			config: c,
 			conn:   conn,
-			log:    log,
 		},
 		Session: &sessionDB{
 			config: c,
 			conn:   conn,
-			log:    log,
 		},
 		Status: &statusDB{
 			config: c,
 			conn:   conn,
-			log:    log,
+			cache:  cache.NewStatusCache(),
 		},
 		Timeline: &timelineDB{
 			config: c,
 			conn:   conn,
-			log:    log,
 		},
 		config: c,
 		conn:   conn,
-		log:    log,
 	}
 
 	// we can confidently return this useable service now
@@ -332,7 +339,7 @@ func (ps *bunDBService) MentionStringsToMentions(ctx context.Context, targetAcco
 		if err != nil {
 			if err == sql.ErrNoRows {
 				// no result found for this username/domain so just don't include it as a mencho and carry on about our business
-				ps.log.Debugf("no account found with username '%s' and domain '%s', skipping it", username, domain)
+				ps.conn.log.Debugf("no account found with username '%s' and domain '%s', skipping it", username, domain)
 				continue
 			}
 			// a serious error has happened so bail
@@ -398,7 +405,7 @@ func (ps *bunDBService) EmojiStringsToEmojis(ctx context.Context, emojis []strin
 		if err != nil {
 			if err == sql.ErrNoRows {
 				// no result found for this username/domain so just don't include it as an emoji and carry on about our business
-				ps.log.Debugf("no emoji found with shortcode %s, skipping it", e)
+				ps.conn.log.Debugf("no emoji found with shortcode %s, skipping it", e)
 				continue
 			}
 			// a serious error has happened so bail

internal/db/bundb/conn.go

@@ -0,0 +1,72 @@
+package bundb
+
+import (
+	"context"
+	"database/sql"
+
+	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"github.com/uptrace/bun"
+	"github.com/uptrace/bun/dialect"
+)
+
+// dbConn wrapps a bun.DB conn to provide SQL-type specific additional functionality
+type DBConn struct {
+	errProc func(error) db.Error // errProc is the SQL-type specific error processor
+	log     *logrus.Logger       // log is the logger passed with this DBConn
+	*bun.DB                      // DB is the underlying bun.DB connection
+}
+
+// WrapDBConn @TODO
+func WrapDBConn(dbConn *bun.DB, log *logrus.Logger) *DBConn {
+	var errProc func(error) db.Error
+	switch dbConn.Dialect().Name() {
+	case dialect.PG:
+		errProc = processPostgresError
+	case dialect.SQLite:
+		errProc = processSQLiteError
+	default:
+		panic("unknown dialect name: " + dbConn.Dialect().Name().String())
+	}
+	return &DBConn{
+		errProc: errProc,
+		log:     log,
+		DB:      dbConn,
+	}
+}
+
+// ProcessError processes an error to replace any known values with our own db.Error types,
+// making it easier to catch specific situations (e.g. no rows, already exists, etc)
+func (conn *DBConn) ProcessError(err error) db.Error {
+	switch {
+	case err == nil:
+		return nil
+	case err == sql.ErrNoRows:
+		return db.ErrNoEntries
+	default:
+		return conn.errProc(err)
+	}
+}
+
+// Exists checks the results of a SelectQuery for the existence of the data in question, masking ErrNoEntries errors
+func (conn *DBConn) Exists(ctx context.Context, query *bun.SelectQuery) (bool, db.Error) {
+	// Get the select query result
+	count, err := query.Count(ctx)
+
+	// Process error as our own and check if it exists
+	switch err := conn.ProcessError(err); err {
+	case nil:
+		return (count != 0), nil
+	case db.ErrNoEntries:
+		return false, nil
+	default:
+		return false, err
+	}
+}
+
+// NotExists is the functional opposite of conn.Exists()
+func (conn *DBConn) NotExists(ctx context.Context, query *bun.SelectQuery) (bool, db.Error) {
+	// Simply inverse of conn.exists()
+	exists, err := conn.Exists(ctx, query)
+	return !exists, err
+}

internal/db/bundb/domain.go

@@ -22,18 +22,15 @@ import (
 	"context"
 	"net/url"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
 	"github.com/superseriousbusiness/gotosocial/internal/util"
-	"github.com/uptrace/bun"
 )
 
 type domainDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 func (d *domainDB) IsDomainBlocked(ctx context.Context, domain string) (bool, db.Error) {
@@ -47,7 +44,7 @@ func (d *domainDB) IsDomainBlocked(ctx context.Context, domain string) (bool, db
 		Where("LOWER(domain) = LOWER(?)", domain).
 		Limit(1)
 
-	return exists(ctx, q)
+	return d.conn.Exists(ctx, q)
 }
 
 func (d *domainDB) AreDomainsBlocked(ctx context.Context, domains []string) (bool, db.Error) {

internal/db/bundb/errors.go

@@ -0,0 +1,43 @@
+package bundb
+
+import (
+	"github.com/jackc/pgconn"
+	"github.com/superseriousbusiness/gotosocial/internal/db"
+	"modernc.org/sqlite"
+	sqlite3 "modernc.org/sqlite/lib"
+)
+
+// processPostgresError processes an error, replacing any postgres specific errors with our own error type
+func processPostgresError(err error) db.Error {
+	// Attempt to cast as postgres
+	pgErr, ok := err.(*pgconn.PgError)
+	if !ok {
+		return err
+	}
+
+	// Handle supplied error code:
+	// (https://www.postgresql.org/docs/10/errcodes-appendix.html)
+	switch pgErr.Code {
+	case "23505" /* unique_violation */ :
+		return db.ErrAlreadyExists
+	default:
+		return err
+	}
+}
+
+// processSQLiteError processes an error, replacing any sqlite specific errors with our own error type
+func processSQLiteError(err error) db.Error {
+	// Attempt to cast as sqlite
+	sqliteErr, ok := err.(*sqlite.Error)
+	if !ok {
+		return err
+	}
+
+	// Handle supplied error code:
+	switch sqliteErr.Code() {
+	case sqlite3.SQLITE_CONSTRAINT_UNIQUE:
+		return db.ErrAlreadyExists
+	default:
+		return err
+	}
+}

internal/db/bundb/instance.go

@@ -21,7 +21,6 @@ package bundb
 import (
 	"context"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@@ -30,8 +29,7 @@ import (
 
 type instanceDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 func (i *instanceDB) CountInstanceUsers(ctx context.Context, domain string) (int, db.Error) {
@@ -49,8 +47,10 @@ func (i *instanceDB) CountInstanceUsers(ctx context.Context, domain string) (int
 	}
 
 	count, err := q.Count(ctx)
-
+	if err != nil {
-	return count, processErrorResponse(err)
+		return 0, i.conn.ProcessError(err)
+	}
+	return count, nil
 }
 
 func (i *instanceDB) CountInstanceStatuses(ctx context.Context, domain string) (int, db.Error) {
@@ -68,8 +68,10 @@ func (i *instanceDB) CountInstanceStatuses(ctx context.Context, domain string) (
 	}
 
 	count, err := q.Count(ctx)
-
+	if err != nil {
-	return count, processErrorResponse(err)
+		return 0, i.conn.ProcessError(err)
+	}
+	return count, nil
 }
 
 func (i *instanceDB) CountInstanceDomains(ctx context.Context, domain string) (int, db.Error) {
@@ -89,12 +91,14 @@ func (i *instanceDB) CountInstanceDomains(ctx context.Context, domain string) (i
 	}
 
 	count, err := q.Count(ctx)
-
+	if err != nil {
-	return count, processErrorResponse(err)
+		return 0, i.conn.ProcessError(err)
+	}
+	return count, nil
 }
 
 func (i *instanceDB) GetInstanceAccounts(ctx context.Context, domain string, maxID string, limit int) ([]*gtsmodel.Account, db.Error) {
-	i.log.Debug("GetAccountsForInstance")
+	i.conn.log.Debug("GetAccountsForInstance")
 
 	accounts := []*gtsmodel.Account{}
 
@@ -111,7 +115,9 @@ func (i *instanceDB) GetInstanceAccounts(ctx context.Context, domain string, max
 		q = q.Limit(limit)
 	}
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return accounts, err
+		return nil, i.conn.ProcessError(err)
+	}
+	return accounts, nil
 }

internal/db/bundb/media.go

@@ -21,7 +21,6 @@ package bundb
 import (
 	"context"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@@ -30,8 +29,7 @@ import (
 
 type mediaDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 func (m *mediaDB) newMediaQ(i interface{}) *bun.SelectQuery {
@@ -47,7 +45,9 @@ func (m *mediaDB) GetAttachmentByID(ctx context.Context, id string) (*gtsmodel.M
 	q := m.newMediaQ(attachment).
 		Where("media_attachment.id = ?", id)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return attachment, err
+		return nil, m.conn.ProcessError(err)
+	}
+	return attachment, nil
 }

internal/db/bundb/mention.go

@@ -21,8 +21,7 @@ package bundb
 import (
 	"context"
 
-	"github.com/sirupsen/logrus"
+	"github.com/ReneKroon/ttlcache"
-	"github.com/superseriousbusiness/gotosocial/internal/cache"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@@ -31,38 +30,8 @@ import (
 
 type mentionDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
+	cache  *ttlcache.Cache
-	cache  cache.Cache
-}
-
-func (m *mentionDB) cacheMention(id string, mention *gtsmodel.Mention) {
-	if m.cache == nil {
-		m.cache = cache.New()
-	}
-
-	if err := m.cache.Store(id, mention); err != nil {
-		m.log.Panicf("mentionDB: error storing in cache: %s", err)
-	}
-}
-
-func (m *mentionDB) mentionCached(id string) (*gtsmodel.Mention, bool) {
-	if m.cache == nil {
-		m.cache = cache.New()
-		return nil, false
-	}
-
-	mI, err := m.cache.Fetch(id)
-	if err != nil || mI == nil {
-		return nil, false
-	}
-
-	mention, ok := mI.(*gtsmodel.Mention)
-	if !ok {
-		m.log.Panicf("mentionDB: cached interface with key %s was not a mention", id)
-	}
-
-	return mention, true
 }
 
 func (m *mentionDB) newMentionQ(i interface{}) *bun.SelectQuery {
@@ -74,33 +43,57 @@ func (m *mentionDB) newMentionQ(i interface{}) *bun.SelectQuery {
 		Relation("TargetAccount")
 }
 
-func (m *mentionDB) GetMention(ctx context.Context, id string) (*gtsmodel.Mention, db.Error) {
+func (m *mentionDB) getMentionCached(id string) (*gtsmodel.Mention, bool) {
-	if mention, cached := m.mentionCached(id); cached {
+	v, ok := m.cache.Get(id)
-		return mention, nil
+	if !ok {
+		return nil, false
+	}
+	return v.(*gtsmodel.Mention), true
 }
 
+func (m *mentionDB) putMentionCache(mention *gtsmodel.Mention) {
+	m.cache.Set(mention.ID, mention)
+}
+
+func (m *mentionDB) getMentionDB(ctx context.Context, id string) (*gtsmodel.Mention, db.Error) {
 	mention := &gtsmodel.Mention{}
 
 	q := m.newMentionQ(mention).
 		Where("mention.id = ?", id)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	if err == nil && mention != nil {
+		return nil, m.conn.ProcessError(err)
-		m.cacheMention(id, mention)
 	}
 
-	return mention, err
+	m.putMentionCache(mention)
+	return mention, nil
+}
+
+func (m *mentionDB) GetMention(ctx context.Context, id string) (*gtsmodel.Mention, db.Error) {
+	if mention, cached := m.getMentionCached(id); cached {
+		return mention, nil
+	}
+	return m.getMentionDB(ctx, id)
 }
 
 func (m *mentionDB) GetMentions(ctx context.Context, ids []string) ([]*gtsmodel.Mention, db.Error) {
-	mentions := []*gtsmodel.Mention{}
+	mentions := make([]*gtsmodel.Mention, 0, len(ids))
 
-	for _, i := range ids {
+	for _, id := range ids {
-		mention, err := m.GetMention(ctx, i)
+		// Attempt fetch from cache
-		if err != nil {
+		mention, cached := m.getMentionCached(id)
-			return nil, processErrorResponse(err)
+		if cached {
+			mentions = append(mentions, mention)
 		}
+
+		// Attempt fetch from DB
+		mention, err := m.getMentionDB(ctx, id)
+		if err != nil {
+			return nil, err
+		}
+
+		// Append mention
 		mentions = append(mentions, mention)
 	}
 

internal/db/bundb/notification.go

@@ -21,8 +21,7 @@ package bundb
 import (
 	"context"
 
-	"github.com/sirupsen/logrus"
+	"github.com/ReneKroon/ttlcache"
-	"github.com/superseriousbusiness/gotosocial/internal/cache"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@@ -31,38 +30,8 @@ import (
 
 type notificationDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
+	cache  *ttlcache.Cache
-	cache  cache.Cache
-}
-
-func (n *notificationDB) cacheNotification(id string, notification *gtsmodel.Notification) {
-	if n.cache == nil {
-		n.cache = cache.New()
-	}
-
-	if err := n.cache.Store(id, notification); err != nil {
-		n.log.Panicf("notificationDB: error storing in cache: %s", err)
-	}
-}
-
-func (n *notificationDB) notificationCached(id string) (*gtsmodel.Notification, bool) {
-	if n.cache == nil {
-		n.cache = cache.New()
-		return nil, false
-	}
-
-	nI, err := n.cache.Fetch(id)
-	if err != nil || nI == nil {
-		return nil, false
-	}
-
-	notification, ok := nI.(*gtsmodel.Notification)
-	if !ok {
-		n.log.Panicf("notificationDB: cached interface with key %s was not a notification", id)
-	}
-
-	return notification, true
 }
 
 func (n *notificationDB) newNotificationQ(i interface{}) *bun.SelectQuery {
@@ -75,30 +44,30 @@ func (n *notificationDB) newNotificationQ(i interface{}) *bun.SelectQuery {
 }
 
 func (n *notificationDB) GetNotification(ctx context.Context, id string) (*gtsmodel.Notification, db.Error) {
-	if notification, cached := n.notificationCached(id); cached {
+	if notification, cached := n.getNotificationCache(id); cached {
 		return notification, nil
 	}
 
-	notification := &gtsmodel.Notification{}
+	notif := &gtsmodel.Notification{}
-
+	err := n.getNotificationDB(ctx, id, notif)
-	q := n.newNotificationQ(notification).
+	if err != nil {
-		Where("notification.id = ?", id)
+		return nil, err
-
-	err := processErrorResponse(q.Scan(ctx))
-
-	if err == nil && notification != nil {
-		n.cacheNotification(id, notification)
 	}
-
+	return notif, nil
-	return notification, err
 }
 
 func (n *notificationDB) GetNotifications(ctx context.Context, accountID string, limit int, maxID string, sinceID string) ([]*gtsmodel.Notification, db.Error) {
-	// begin by selecting just the IDs
+	// Ensure reasonable
-	notifIDs := []*gtsmodel.Notification{}
+	if limit < 0 {
+		limit = 0
+	}
+
+	// Make a guess for slice size
+	notifications := make([]*gtsmodel.Notification, 0, limit)
+
 	q := n.conn.
 		NewSelect().
-		Model(&notifIDs).
+		Model(&notifications).
 		Column("id").
 		Where("target_account_id = ?", accountID).
 		Order("id DESC")
@@ -115,22 +84,52 @@ func (n *notificationDB) GetNotifications(ctx context.Context, accountID string,
 		q = q.Limit(limit)
 	}
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
 	if err != nil {
-		return nil, err
+		return nil, n.conn.ProcessError(err)
 	}
 
 	// now we have the IDs, select the notifs one by one
 	// reason for this is that for each notif, we can instead get it from our cache if it's cached
-	notifications := []*gtsmodel.Notification{}
+	for i, notif := range notifications {
-	for _, notifID := range notifIDs {
+		// Check cache for notification
-		notif, err := n.GetNotification(ctx, notifID.ID)
+		nn, cached := n.getNotificationCache(notif.ID)
-		errP := processErrorResponse(err)
+		if cached {
-		if errP != nil {
+			notifications[i] = nn
-			return nil, errP
+			continue
+		}
+
+		// Check DB for notification
+		err := n.getNotificationDB(ctx, notif.ID, notif)
+		if err != nil {
+			return nil, err
 		}
-		notifications = append(notifications, notif)
 	}
 
 	return notifications, nil
 }
+
+func (n *notificationDB) getNotificationCache(id string) (*gtsmodel.Notification, bool) {
+	v, ok := n.cache.Get(id)
+	if !ok {
+		return nil, false
+	}
+	return v.(*gtsmodel.Notification), true
+}
+
+func (n *notificationDB) putNotificationCache(notif *gtsmodel.Notification) {
+	n.cache.Set(notif.ID, notif)
+}
+
+func (n *notificationDB) getNotificationDB(ctx context.Context, id string, dst *gtsmodel.Notification) error {
+	q := n.newNotificationQ(dst).
+		Where("notification.id = ?", id)
+
+	err := q.Scan(ctx)
+	if err != nil {
+		return n.conn.ProcessError(err)
+	}
+
+	n.putNotificationCache(dst)
+	return nil
+}

internal/db/bundb/relationship.go

@@ -23,7 +23,6 @@ import (
 	"database/sql"
 	"fmt"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@@ -32,8 +31,7 @@ import (
 
 type relationshipDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 func (r *relationshipDB) newBlockQ(block *gtsmodel.Block) *bun.SelectQuery {
@@ -66,7 +64,7 @@ func (r *relationshipDB) IsBlocked(ctx context.Context, account1 string, account
 			Where("account_id = ?", account2)
 	}
 
-	return exists(ctx, q)
+	return r.conn.Exists(ctx, q)
 }
 
 func (r *relationshipDB) GetBlock(ctx context.Context, account1 string, account2 string) (*gtsmodel.Block, db.Error) {
@@ -76,9 +74,11 @@ func (r *relationshipDB) GetBlock(ctx context.Context, account1 string, account2
 		Where("block.account_id = ?", account1).
 		Where("block.target_account_id = ?", account2)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return block, err
+		return nil, r.conn.ProcessError(err)
+	}
+	return block, nil
 }
 
 func (r *relationshipDB) GetRelationship(ctx context.Context, requestingAccount string, targetAccount string) (*gtsmodel.Relationship, db.Error) {
@@ -176,7 +176,7 @@ func (r *relationshipDB) IsFollowing(ctx context.Context, sourceAccount *gtsmode
 		Where("target_account_id = ?", targetAccount.ID).
 		Limit(1)
 
-	return exists(ctx, q)
+	return r.conn.Exists(ctx, q)
 }
 
 func (r *relationshipDB) IsFollowRequested(ctx context.Context, sourceAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) (bool, db.Error) {
@@ -190,7 +190,7 @@ func (r *relationshipDB) IsFollowRequested(ctx context.Context, sourceAccount *g
 		Where("account_id = ?", sourceAccount.ID).
 		Where("target_account_id = ?", targetAccount.ID)
 
-	return exists(ctx, q)
+	return r.conn.Exists(ctx, q)
 }
 
 func (r *relationshipDB) IsMutualFollowing(ctx context.Context, account1 *gtsmodel.Account, account2 *gtsmodel.Account) (bool, db.Error) {
@@ -201,13 +201,13 @@ func (r *relationshipDB) IsMutualFollowing(ctx context.Context, account1 *gtsmod
 	// make sure account 1 follows account 2
 	f1, err := r.IsFollowing(ctx, account1, account2)
 	if err != nil {
-		return false, processErrorResponse(err)
+		return false, err
 	}
 
 	// make sure account 2 follows account 1
 	f2, err := r.IsFollowing(ctx, account2, account1)
 	if err != nil {
-		return false, processErrorResponse(err)
+		return false, err
 	}
 
 	return f1 && f2, nil
@@ -222,7 +222,7 @@ func (r *relationshipDB) AcceptFollowRequest(ctx context.Context, originAccountI
 		Where("account_id = ?", originAccountID).
 		Where("target_account_id = ?", targetAccountID).
 		Scan(ctx); err != nil {
-		return nil, processErrorResponse(err)
+		return nil, r.conn.ProcessError(err)
 	}
 
 	// create a new follow to 'replace' the request with
@@ -239,7 +239,7 @@ func (r *relationshipDB) AcceptFollowRequest(ctx context.Context, originAccountI
 		Model(follow).
 		On("CONFLICT ON CONSTRAINT follows_account_id_target_account_id_key DO UPDATE set uri = ?", follow.URI).
 		Exec(ctx); err != nil {
-		return nil, processErrorResponse(err)
+		return nil, r.conn.ProcessError(err)
 	}
 
 	// now remove the follow request
@@ -249,7 +249,7 @@ func (r *relationshipDB) AcceptFollowRequest(ctx context.Context, originAccountI
 		Where("account_id = ?", originAccountID).
 		Where("target_account_id = ?", targetAccountID).
 		Exec(ctx); err != nil {
-		return nil, processErrorResponse(err)
+		return nil, r.conn.ProcessError(err)
 	}
 
 	return follow, nil
@@ -261,9 +261,11 @@ func (r *relationshipDB) GetAccountFollowRequests(ctx context.Context, accountID
 	q := r.newFollowQ(&followRequests).
 		Where("target_account_id = ?", accountID)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return followRequests, err
+		return nil, r.conn.ProcessError(err)
+	}
+	return followRequests, nil
 }
 
 func (r *relationshipDB) GetAccountFollows(ctx context.Context, accountID string) ([]*gtsmodel.Follow, db.Error) {
@@ -272,9 +274,11 @@ func (r *relationshipDB) GetAccountFollows(ctx context.Context, accountID string
 	q := r.newFollowQ(&follows).
 		Where("account_id = ?", accountID)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-
+	if err != nil {
-	return follows, err
+		return nil, r.conn.ProcessError(err)
+	}
+	return follows, nil
 }
 
 func (r *relationshipDB) CountAccountFollows(ctx context.Context, accountID string, localOnly bool) (int, db.Error) {
@@ -286,7 +290,6 @@ func (r *relationshipDB) CountAccountFollows(ctx context.Context, accountID stri
 }
 
 func (r *relationshipDB) GetAccountFollowedBy(ctx context.Context, accountID string, localOnly bool) ([]*gtsmodel.Follow, db.Error) {
-
 	follows := []*gtsmodel.Follow{}
 
 	q := r.conn.
@@ -302,11 +305,9 @@ func (r *relationshipDB) GetAccountFollowedBy(ctx context.Context, accountID str
 		q = q.Where("target_account_id = ?", accountID)
 	}
 
-	if err := q.Scan(ctx); err != nil {
+	err := q.Scan(ctx)
-		if err == sql.ErrNoRows {
+	if err != nil && err != sql.ErrNoRows {
-			return follows, nil
+		return nil, r.conn.ProcessError(err)
-		}
-		return nil, processErrorResponse(err)
 	}
 	return follows, nil
 }

internal/db/bundb/session.go

@@ -23,22 +23,19 @@ import (
 	"crypto/rand"
 	"errors"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
 	"github.com/superseriousbusiness/gotosocial/internal/id"
-	"github.com/uptrace/bun"
 )
 
 type sessionDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 func (s *sessionDB) GetSession(ctx context.Context) (*gtsmodel.RouterSession, db.Error) {
-	rss := []*gtsmodel.RouterSession{}
+	rss := make([]*gtsmodel.RouterSession, 0, 1)
 
 	_, err := s.conn.
 		NewSelect().
@@ -47,7 +44,7 @@ func (s *sessionDB) GetSession(ctx context.Context) (*gtsmodel.RouterSession, db
 		Order("id DESC").
 		Exec(ctx)
 	if err != nil {
-		return nil, processErrorResponse(err)
+		return nil, s.conn.ProcessError(err)
 	}
 
 	if len(rss) <= 0 {
@@ -92,8 +89,8 @@ func (s *sessionDB) createSession(ctx context.Context) (*gtsmodel.RouterSession,
 		Model(rs)
 
 	_, err = q.Exec(ctx)
-
+	if err != nil {
-	err = processErrorResponse(err)
+		return nil, s.conn.ProcessError(err)
-
+	}
-	return rs, err
+	return rs, nil
 }

internal/db/bundb/status.go

@@ -24,7 +24,6 @@ import (
 	"errors"
 	"time"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/cache"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
@@ -34,38 +33,8 @@ import (
 
 type statusDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
+	cache  *cache.StatusCache
-	cache  cache.Cache
-}
-
-func (s *statusDB) cacheStatus(id string, status *gtsmodel.Status) {
-	if s.cache == nil {
-		s.cache = cache.New()
-	}
-
-	if err := s.cache.Store(id, status); err != nil {
-		s.log.Panicf("statusDB: error storing in cache: %s", err)
-	}
-}
-
-func (s *statusDB) statusCached(id string) (*gtsmodel.Status, bool) {
-	if s.cache == nil {
-		s.cache = cache.New()
-		return nil, false
-	}
-
-	sI, err := s.cache.Fetch(id)
-	if err != nil || sI == nil {
-		return nil, false
-	}
-
-	status, ok := sI.(*gtsmodel.Status)
-	if !ok {
-		s.log.Panicf("statusDB: cached interface with key %s was not a status", id)
-	}
-
-	return status, true
 }
 
 func (s *statusDB) newStatusQ(status interface{}) *bun.SelectQuery {
@@ -84,7 +53,9 @@ func (s *statusDB) newStatusQ(status interface{}) *bun.SelectQuery {
 
 func (s *statusDB) getAttachedStatuses(ctx context.Context, status *gtsmodel.Status) *gtsmodel.Status {
 	if status.InReplyToID != "" && status.InReplyTo == nil {
-		if inReplyTo, cached := s.statusCached(status.InReplyToID); cached {
+		// TODO: do we want to keep this possibly recursive strategy?
+
+		if inReplyTo, cached := s.cache.GetByID(status.InReplyToID); cached {
 			status.InReplyTo = inReplyTo
 		} else if inReplyTo, err := s.GetStatusByID(ctx, status.InReplyToID); err == nil {
 			status.InReplyTo = inReplyTo
@@ -92,7 +63,9 @@ func (s *statusDB) getAttachedStatuses(ctx context.Context, status *gtsmodel.Sta
 	}
 
 	if status.BoostOfID != "" && status.BoostOf == nil {
-		if boostOf, cached := s.statusCached(status.BoostOfID); cached {
+		// TODO: do we want to keep this possibly recursive strategy?
+
+		if boostOf, cached := s.cache.GetByID(status.BoostOfID); cached {
 			status.BoostOf = boostOf
 		} else if boostOf, err := s.GetStatusByID(ctx, status.BoostOfID); err == nil {
 			status.BoostOf = boostOf
@@ -112,29 +85,26 @@ func (s *statusDB) newFaveQ(faves interface{}) *bun.SelectQuery {
 }
 
 func (s *statusDB) GetStatusByID(ctx context.Context, id string) (*gtsmodel.Status, db.Error) {
-	if status, cached := s.statusCached(id); cached {
+	if status, cached := s.cache.GetByID(id); cached {
 		return status, nil
 	}
 
-	status := new(gtsmodel.Status)
+	status := &gtsmodel.Status{}
 
 	q := s.newStatusQ(status).
 		Where("status.id = ?", id)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
 	if err != nil {
-		return nil, err
+		return nil, s.conn.ProcessError(err)
 	}
 
-	if status != nil {
+	s.cache.Put(status)
-		s.cacheStatus(id, status)
+	return s.getAttachedStatuses(ctx, status), nil
-	}
-
-	return s.getAttachedStatuses(ctx, status), err
 }
 
 func (s *statusDB) GetStatusByURI(ctx context.Context, uri string) (*gtsmodel.Status, db.Error) {
-	if status, cached := s.statusCached(uri); cached {
+	if status, cached := s.cache.GetByURI(uri); cached {
 		return status, nil
 	}
 
@@ -143,38 +113,32 @@ func (s *statusDB) GetStatusByURI(ctx context.Context, uri string) (*gtsmodel.St
 	q := s.newStatusQ(status).
 		Where("LOWER(status.uri) = LOWER(?)", uri)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
 	if err != nil {
-		return nil, err
+		return nil, s.conn.ProcessError(err)
 	}
 
-	if status != nil {
+	s.cache.Put(status)
-		s.cacheStatus(uri, status)
+	return s.getAttachedStatuses(ctx, status), nil
 }
 
-	return s.getAttachedStatuses(ctx, status), err
+func (s *statusDB) GetStatusByURL(ctx context.Context, url string) (*gtsmodel.Status, db.Error) {
-}
+	if status, cached := s.cache.GetByURL(url); cached {
-
-func (s *statusDB) GetStatusByURL(ctx context.Context, uri string) (*gtsmodel.Status, db.Error) {
-	if status, cached := s.statusCached(uri); cached {
 		return status, nil
 	}
 
 	status := &gtsmodel.Status{}
 
 	q := s.newStatusQ(status).
-		Where("LOWER(status.url) = LOWER(?)", uri)
+		Where("LOWER(status.url) = LOWER(?)", url)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
 	if err != nil {
-		return nil, err
+		return nil, s.conn.ProcessError(err)
 	}
 
-	if status != nil {
+	s.cache.Put(status)
-		s.cacheStatus(uri, status)
+	return s.getAttachedStatuses(ctx, status), nil
-	}
-
-	return s.getAttachedStatuses(ctx, status), err
 }
 
 func (s *statusDB) PutStatus(ctx context.Context, status *gtsmodel.Status) db.Error {
@@ -213,14 +177,12 @@ func (s *statusDB) PutStatus(ctx context.Context, status *gtsmodel.Status) db.Er
 		_, err := tx.NewInsert().Model(status).Exec(ctx)
 		return err
 	}
-
+	return s.conn.ProcessError(s.conn.RunInTx(ctx, nil, transaction))
-	return processErrorResponse(s.conn.RunInTx(ctx, nil, transaction))
 }
 
 func (s *statusDB) GetStatusParents(ctx context.Context, status *gtsmodel.Status, onlyDirect bool) ([]*gtsmodel.Status, db.Error) {
 	parents := []*gtsmodel.Status{}
 	s.statusParent(ctx, status, &parents, onlyDirect)
-
 	return parents, nil
 }
 
@@ -318,7 +280,7 @@ func (s *statusDB) IsStatusFavedBy(ctx context.Context, status *gtsmodel.Status,
 		Where("status_id = ?", status.ID).
 		Where("account_id = ?", accountID)
 
-	return exists(ctx, q)
+	return s.conn.Exists(ctx, q)
 }
 
 func (s *statusDB) IsStatusRebloggedBy(ctx context.Context, status *gtsmodel.Status, accountID string) (bool, db.Error) {
@@ -328,7 +290,7 @@ func (s *statusDB) IsStatusRebloggedBy(ctx context.Context, status *gtsmodel.Sta
 		Where("boost_of_id = ?", status.ID).
 		Where("account_id = ?", accountID)
 
-	return exists(ctx, q)
+	return s.conn.Exists(ctx, q)
 }
 
 func (s *statusDB) IsStatusMutedBy(ctx context.Context, status *gtsmodel.Status, accountID string) (bool, db.Error) {
@@ -338,7 +300,7 @@ func (s *statusDB) IsStatusMutedBy(ctx context.Context, status *gtsmodel.Status,
 		Where("status_id = ?", status.ID).
 		Where("account_id = ?", accountID)
 
-	return exists(ctx, q)
+	return s.conn.Exists(ctx, q)
 }
 
 func (s *statusDB) IsStatusBookmarkedBy(ctx context.Context, status *gtsmodel.Status, accountID string) (bool, db.Error) {
@@ -348,7 +310,7 @@ func (s *statusDB) IsStatusBookmarkedBy(ctx context.Context, status *gtsmodel.St
 		Where("status_id = ?", status.ID).
 		Where("account_id = ?", accountID)
 
-	return exists(ctx, q)
+	return s.conn.Exists(ctx, q)
 }
 
 func (s *statusDB) GetStatusFaves(ctx context.Context, status *gtsmodel.Status) ([]*gtsmodel.StatusFave, db.Error) {
@@ -357,8 +319,11 @@ func (s *statusDB) GetStatusFaves(ctx context.Context, status *gtsmodel.Status)
 	q := s.newFaveQ(&faves).
 		Where("status_id = ?", status.ID)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-	return faves, err
+	if err != nil {
+		return nil, s.conn.ProcessError(err)
+	}
+	return faves, nil
 }
 
 func (s *statusDB) GetStatusReblogs(ctx context.Context, status *gtsmodel.Status) ([]*gtsmodel.Status, db.Error) {
@@ -367,6 +332,9 @@ func (s *statusDB) GetStatusReblogs(ctx context.Context, status *gtsmodel.Status
 	q := s.newStatusQ(&reblogs).
 		Where("boost_of_id = ?", status.ID)
 
-	err := processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
-	return reblogs, err
+	if err != nil {
+		return nil, s.conn.ProcessError(err)
+	}
+	return reblogs, nil
 }

internal/db/bundb/status_test.go

@@ -59,7 +59,6 @@ func (suite *StatusTestSuite) TearDownTest() {
 func (suite *StatusTestSuite) TestGetStatusByID() {
 	status, err := suite.db.GetStatusByID(context.Background(), suite.testStatuses["local_account_1_status_1"].ID)
 	if err != nil {
-		fmt.Println(err.Error())
 		suite.FailNow(err.Error())
 	}
 	suite.NotNil(status)

internal/db/bundb/timeline.go

@@ -23,7 +23,6 @@ import (
 	"database/sql"
 	"sort"
 
-	"github.com/sirupsen/logrus"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@@ -32,12 +31,18 @@ import (
 
 type timelineDB struct {
 	config *config.Config
-	conn   *bun.DB
+	conn   *DBConn
-	log    *logrus.Logger
 }
 
 func (t *timelineDB) GetHomeTimeline(ctx context.Context, accountID string, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, db.Error) {
-	statuses := []*gtsmodel.Status{}
+	// Ensure reasonable
+	if limit < 0 {
+		limit = 0
+	}
+
+	// Make educated guess for slice size
+	statuses := make([]*gtsmodel.Status, 0, limit)
+
 	q := t.conn.
 		NewSelect().
 		Model(&statuses)
@@ -86,11 +91,21 @@ func (t *timelineDB) GetHomeTimeline(ctx context.Context, accountID string, maxI
 
 	q = q.WhereGroup(" AND ", whereGroup)
 
-	return statuses, processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
+	if err != nil {
+		return nil, t.conn.ProcessError(err)
+	}
+	return statuses, nil
 }
 
 func (t *timelineDB) GetPublicTimeline(ctx context.Context, accountID string, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, db.Error) {
-	statuses := []*gtsmodel.Status{}
+	// Ensure reasonable
+	if limit < 0 {
+		limit = 0
+	}
+
+	// Make educated guess for slice size
+	statuses := make([]*gtsmodel.Status, 0, limit)
 
 	q := t.conn.
 		NewSelect().
@@ -121,14 +136,23 @@ func (t *timelineDB) GetPublicTimeline(ctx context.Context, accountID string, ma
 		q = q.Limit(limit)
 	}
 
-	return statuses, processErrorResponse(q.Scan(ctx))
+	err := q.Scan(ctx)
+	if err != nil {
+		return nil, t.conn.ProcessError(err)
+	}
+	return statuses, nil
 }
 
 // TODO optimize this query and the logic here, because it's slow as balls -- it takes like a literal second to return with a limit of 20!
 // It might be worth serving it through a timeline instead of raw DB queries, like we do for Home feeds.
 func (t *timelineDB) GetFavedTimeline(ctx context.Context, accountID string, maxID string, minID string, limit int) ([]*gtsmodel.Status, string, string, db.Error) {
+	// Ensure reasonable
+	if limit < 0 {
+		limit = 0
+	}
 
-	faves := []*gtsmodel.StatusFave{}
+	// Make educated guess for slice size
+	faves := make([]*gtsmodel.StatusFave, 0, limit)
 
 	fq := t.conn.
 		NewSelect().
@@ -160,26 +184,23 @@ func (t *timelineDB) GetFavedTimeline(ctx context.Context, accountID string, max
 		return nil, "", "", db.ErrNoEntries
 	}
 
-	// map[statusID]faveID -- we need this to sort statuses by fave ID rather than their own ID
+	// map[statusID]faveID -- we need this to sort statuses by fave ID rather than status ID
-	statusesFavesMap := map[string]string{}
+	statusesFavesMap := make(map[string]string, len(faves))
-
+	statusIDs := make([]string, 0, len(faves))
-	in := []string{}
 	for _, f := range faves {
 		statusesFavesMap[f.StatusID] = f.ID
-		in = append(in, f.StatusID)
+		statusIDs = append(statusIDs, f.StatusID)
 	}
 
-	statuses := []*gtsmodel.Status{}
+	statuses := make([]*gtsmodel.Status, 0, len(statusIDs))
+
 	err = t.conn.
 		NewSelect().
 		Model(&statuses).
-		Where("id IN (?)", bun.In(in)).
+		Where("id IN (?)", bun.In(statusIDs)).
 		Scan(ctx)
 	if err != nil {
-		if err == sql.ErrNoRows {
+		return nil, "", "", t.conn.ProcessError(err)
-			return nil, "", "", db.ErrNoEntries
-		}
-		return nil, "", "", err
 	}
 
 	if len(statuses) == 0 {

internal/db/bundb/util.go

@@ -19,64 +19,9 @@
 package bundb
 
 import (
-	"context"
-	"strings"
-
-	"database/sql"
-
-	"github.com/superseriousbusiness/gotosocial/internal/db"
 	"github.com/uptrace/bun"
 )
 
-// processErrorResponse parses the given error and returns an appropriate DBError.
-func processErrorResponse(err error) db.Error {
-	switch err {
-	case nil:
-		return nil
-	case sql.ErrNoRows:
-		return db.ErrNoEntries
-	default:
-		if strings.Contains(err.Error(), "duplicate key value violates unique constraint") {
-			return db.ErrAlreadyExists
-		}
-		return err
-	}
-}
-
-func exists(ctx context.Context, q *bun.SelectQuery) (bool, db.Error) {
-	count, err := q.Count(ctx)
-
-	exists := count != 0
-
-	err = processErrorResponse(err)
-
-	if err != nil {
-		if err == db.ErrNoEntries {
-			return false, nil
-		}
-		return false, err
-	}
-
-	return exists, nil
-}
-
-func notExists(ctx context.Context, q *bun.SelectQuery) (bool, db.Error) {
-	count, err := q.Count(ctx)
-
-	notExists := count == 0
-
-	err = processErrorResponse(err)
-
-	if err != nil {
-		if err == db.ErrNoEntries {
-			return true, nil
-		}
-		return false, err
-	}
-
-	return notExists, nil
-}
-
 // whereEmptyOrNull is a convenience function to return a bun WhereGroup that specifies
 // that the given column should be EITHER an empty string OR null.
 //

vendor/github.com/kballard/go-shellquote/LICENSE

@@ -0,0 +1,19 @@
+Copyright (C) 2014 Kevin Ballard
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/github.com/kballard/go-shellquote/README

@@ -0,0 +1,36 @@
+PACKAGE
+
+package shellquote
+    import "github.com/kballard/go-shellquote"
+
+    Shellquote provides utilities for joining/splitting strings using sh's
+    word-splitting rules.
+
+VARIABLES
+
+var (
+    UnterminatedSingleQuoteError = errors.New("Unterminated single-quoted string")
+    UnterminatedDoubleQuoteError = errors.New("Unterminated double-quoted string")
+    UnterminatedEscapeError      = errors.New("Unterminated backslash-escape")
+)
+
+
+FUNCTIONS
+
+func Join(args ...string) string
+    Join quotes each argument and joins them with a space. If passed to
+    /bin/sh, the resulting string will be split back into the original
+    arguments.
+
+func Split(input string) (words []string, err error)
+    Split splits a string according to /bin/sh's word-splitting rules. It
+    supports backslash-escapes, single-quotes, and double-quotes. Notably it
+    does not support the $'' style of quoting. It also doesn't attempt to
+    perform any other sort of expansion, including brace expansion, shell
+    expansion, or pathname expansion.
+
+    If the given input has an unterminated quoted string or ends in a
+    backslash-escape, one of UnterminatedSingleQuoteError,
+    UnterminatedDoubleQuoteError, or UnterminatedEscapeError is returned.
+
+

vendor/github.com/kballard/go-shellquote/doc.go

@@ -0,0 +1,3 @@
+// Shellquote provides utilities for joining/splitting strings using sh's
+// word-splitting rules.
+package shellquote

vendor/github.com/kballard/go-shellquote/quote.go

@@ -0,0 +1,102 @@
+package shellquote
+
+import (
+	"bytes"
+	"strings"
+	"unicode/utf8"
+)
+
+// Join quotes each argument and joins them with a space.
+// If passed to /bin/sh, the resulting string will be split back into the
+// original arguments.
+func Join(args ...string) string {
+	var buf bytes.Buffer
+	for i, arg := range args {
+		if i != 0 {
+			buf.WriteByte(' ')
+		}
+		quote(arg, &buf)
+	}
+	return buf.String()
+}
+
+const (
+	specialChars      = "\\'\"`${[|&;<>()*?!"
+	extraSpecialChars = " \t\n"
+	prefixChars       = "~"
+)
+
+func quote(word string, buf *bytes.Buffer) {
+	// We want to try to produce a "nice" output. As such, we will
+	// backslash-escape most characters, but if we encounter a space, or if we
+	// encounter an extra-special char (which doesn't work with
+	// backslash-escaping) we switch over to quoting the whole word. We do this
+	// with a space because it's typically easier for people to read multi-word
+	// arguments when quoted with a space rather than with ugly backslashes
+	// everywhere.
+	origLen := buf.Len()
+
+	if len(word) == 0 {
+		// oops, no content
+		buf.WriteString("''")
+		return
+	}
+
+	cur, prev := word, word
+	atStart := true
+	for len(cur) > 0 {
+		c, l := utf8.DecodeRuneInString(cur)
+		cur = cur[l:]
+		if strings.ContainsRune(specialChars, c) || (atStart && strings.ContainsRune(prefixChars, c)) {
+			// copy the non-special chars up to this point
+			if len(cur) < len(prev) {
+				buf.WriteString(prev[0 : len(prev)-len(cur)-l])
+			}
+			buf.WriteByte('\\')
+			buf.WriteRune(c)
+			prev = cur
+		} else if strings.ContainsRune(extraSpecialChars, c) {
+			// start over in quote mode
+			buf.Truncate(origLen)
+			goto quote
+		}
+		atStart = false
+	}
+	if len(prev) > 0 {
+		buf.WriteString(prev)
+	}
+	return
+
+quote:
+	// quote mode
+	// Use single-quotes, but if we find a single-quote in the word, we need
+	// to terminate the string, emit an escaped quote, and start the string up
+	// again
+	inQuote := false
+	for len(word) > 0 {
+		i := strings.IndexRune(word, '\'')
+		if i == -1 {
+			break
+		}
+		if i > 0 {
+			if !inQuote {
+				buf.WriteByte('\'')
+				inQuote = true
+			}
+			buf.WriteString(word[0:i])
+		}
+		word = word[i+1:]
+		if inQuote {
+			buf.WriteByte('\'')
+			inQuote = false
+		}
+		buf.WriteString("\\'")
+	}
+	if len(word) > 0 {
+		if !inQuote {
+			buf.WriteByte('\'')
+		}
+		buf.WriteString(word)
+		buf.WriteByte('\'')
+	}
+}

vendor/github.com/kballard/go-shellquote/unquote.go

@@ -0,0 +1,156 @@
+package shellquote
+
+import (
+	"bytes"
+	"errors"
+	"strings"
+	"unicode/utf8"
+)
+
+var (
+	UnterminatedSingleQuoteError = errors.New("Unterminated single-quoted string")
+	UnterminatedDoubleQuoteError = errors.New("Unterminated double-quoted string")
+	UnterminatedEscapeError      = errors.New("Unterminated backslash-escape")
+)
+
+var (
+	splitChars        = " \n\t"
+	singleChar        = '\''
+	doubleChar        = '"'
+	escapeChar        = '\\'
+	doubleEscapeChars = "$`\"\n\\"
+)
+
+// Split splits a string according to /bin/sh's word-splitting rules. It
+// supports backslash-escapes, single-quotes, and double-quotes. Notably it does
+// not support the $'' style of quoting. It also doesn't attempt to perform any
+// other sort of expansion, including brace expansion, shell expansion, or
+// pathname expansion.
+//
+// If the given input has an unterminated quoted string or ends in a
+// backslash-escape, one of UnterminatedSingleQuoteError,
+// UnterminatedDoubleQuoteError, or UnterminatedEscapeError is returned.
+func Split(input string) (words []string, err error) {
+	var buf bytes.Buffer
+	words = make([]string, 0)
+
+	for len(input) > 0 {
+		// skip any splitChars at the start
+		c, l := utf8.DecodeRuneInString(input)
+		if strings.ContainsRune(splitChars, c) {
+			input = input[l:]
+			continue
+		} else if c == escapeChar {
+			// Look ahead for escaped newline so we can skip over it
+			next := input[l:]
+			if len(next) == 0 {
+				err = UnterminatedEscapeError
+				return
+			}
+			c2, l2 := utf8.DecodeRuneInString(next)
+			if c2 == '\n' {
+				input = next[l2:]
+				continue
+			}
+		}
+
+		var word string
+		word, input, err = splitWord(input, &buf)
+		if err != nil {
+			return
+		}
+		words = append(words, word)
+	}
+	return
+}
+
+func splitWord(input string, buf *bytes.Buffer) (word string, remainder string, err error) {
+	buf.Reset()
+
+raw:
+	{
+		cur := input
+		for len(cur) > 0 {
+			c, l := utf8.DecodeRuneInString(cur)
+			cur = cur[l:]
+			if c == singleChar {
+				buf.WriteString(input[0 : len(input)-len(cur)-l])
+				input = cur
+				goto single
+			} else if c == doubleChar {
+				buf.WriteString(input[0 : len(input)-len(cur)-l])
+				input = cur
+				goto double
+			} else if c == escapeChar {
+				buf.WriteString(input[0 : len(input)-len(cur)-l])
+				input = cur
+				goto escape
+			} else if strings.ContainsRune(splitChars, c) {
+				buf.WriteString(input[0 : len(input)-len(cur)-l])
+				return buf.String(), cur, nil
+			}
+		}
+		if len(input) > 0 {
+			buf.WriteString(input)
+			input = ""
+		}
+		goto done
+	}
+
+escape:
+	{
+		if len(input) == 0 {
+			return "", "", UnterminatedEscapeError
+		}
+		c, l := utf8.DecodeRuneInString(input)
+		if c == '\n' {
+			// a backslash-escaped newline is elided from the output entirely
+		} else {
+			buf.WriteString(input[:l])
+		}
+		input = input[l:]
+	}
+	goto raw
+
+single:
+	{
+		i := strings.IndexRune(input, singleChar)
+		if i == -1 {
+			return "", "", UnterminatedSingleQuoteError
+		}
+		buf.WriteString(input[0:i])
+		input = input[i+1:]
+		goto raw
+	}
+
+double:
+	{
+		cur := input
+		for len(cur) > 0 {
+			c, l := utf8.DecodeRuneInString(cur)
+			cur = cur[l:]
+			if c == doubleChar {
+				buf.WriteString(input[0 : len(input)-len(cur)-l])
+				input = cur
+				goto raw
+			} else if c == escapeChar {
+				// bash only supports certain escapes in double-quoted strings
+				c2, l2 := utf8.DecodeRuneInString(cur)
+				cur = cur[l2:]
+				if strings.ContainsRune(doubleEscapeChars, c2) {
+					buf.WriteString(input[0 : len(input)-len(cur)-l-l2])
+					if c2 == '\n' {
+						// newline is special, skip the backslash entirely
+					} else {
+						buf.WriteRune(c2)
+					}
+					input = cur
+				}
+			}
+		}
+		return "", "", UnterminatedDoubleQuoteError
+	}
+
+done:
+	return buf.String(), input, nil
+}

vendor/github.com/remyoudompheng/bigfft/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2012 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/remyoudompheng/bigfft/README

@@ -0,0 +1,43 @@
+Benchmarking math/big vs. bigfft
+
+Number size    old ns/op    new ns/op    delta
+  1kb               1599         1640   +2.56%
+ 10kb              61533        62170   +1.04%
+ 50kb             833693       831051   -0.32%
+100kb            2567995      2693864   +4.90%
+  1Mb          105237800     28446400  -72.97%
+  5Mb         1272947000    168554600  -86.76%
+ 10Mb         3834354000    405120200  -89.43%
+ 20Mb        11514488000    845081600  -92.66%
+ 50Mb        49199945000   2893950000  -94.12%
+100Mb       147599836000   5921594000  -95.99%
+
+Benchmarking GMP vs bigfft
+
+Number size   GMP ns/op     Go ns/op    delta
+  1kb                536         1500  +179.85%
+ 10kb              26669        50777  +90.40%
+ 50kb             252270       658534  +161.04%
+100kb             686813      2127534  +209.77%
+  1Mb           12100000     22391830  +85.06%
+  5Mb          111731843    133550600  +19.53%
+ 10Mb          212314000    318595800  +50.06%
+ 20Mb          490196000    671512800  +36.99%
+ 50Mb         1280000000   2451476000  +91.52%
+100Mb         2673000000   5228991000  +95.62%
+
+Benchmarks were run on a Core 2 Quad Q8200 (2.33GHz).
+FFT is enabled when input numbers are over 200kbits.
+
+Scanning large decimal number from strings.
+(math/big [n^2 complexity] vs bigfft [n^1.6 complexity], Core i5-4590)
+
+Digits    old ns/op      new ns/op      delta
+1e3            9995          10876     +8.81%
+1e4          175356         243806    +39.03%
+1e5         9427422        6780545    -28.08%
+1e6      1776707489      144867502    -91.85%
+2e6      6865499995      346540778    -94.95%
+5e6     42641034189     1069878799    -97.49%
+10e6   151975273589     2693328580    -98.23%
+

vendor/github.com/remyoudompheng/bigfft/arith_386.s

@@ -0,0 +1,36 @@
+// Trampolines to math/big assembly implementations.
+
+#include "textflag.h"
+
+// func addVV(z, x, y []Word) (c Word)
+TEXT ·addVV(SB),NOSPLIT,$0
+	JMP	math∕big·addVV(SB)
+
+// func subVV(z, x, y []Word) (c Word)
+TEXT ·subVV(SB),NOSPLIT,$0
+	JMP	math∕big·subVV(SB)
+
+// func addVW(z, x []Word, y Word) (c Word)
+TEXT ·addVW(SB),NOSPLIT,$0
+	JMP	math∕big·addVW(SB)
+
+// func subVW(z, x []Word, y Word) (c Word)
+TEXT ·subVW(SB),NOSPLIT,$0
+	JMP	math∕big·subVW(SB)
+
+// func shlVU(z, x []Word, s uint) (c Word)
+TEXT ·shlVU(SB),NOSPLIT,$0
+	JMP	math∕big·shlVU(SB)
+
+// func shrVU(z, x []Word, s uint) (c Word)
+TEXT ·shrVU(SB),NOSPLIT,$0
+	JMP	math∕big·shrVU(SB)
+
+// func mulAddVWW(z, x []Word, y, r Word) (c Word)
+TEXT ·mulAddVWW(SB),NOSPLIT,$0
+	JMP	math∕big·mulAddVWW(SB)
+
+// func addMulVVW(z, x []Word, y Word) (c Word)
+TEXT ·addMulVVW(SB),NOSPLIT,$0
+	JMP	math∕big·addMulVVW(SB)
+

vendor/github.com/remyoudompheng/bigfft/arith_amd64.s

@@ -0,0 +1,38 @@
+// Trampolines to math/big assembly implementations.
+
+#include "textflag.h"
+
+// func addVV(z, x, y []Word) (c Word)
+TEXT ·addVV(SB),NOSPLIT,$0
+	JMP	math∕big·addVV(SB)
+
+// func subVV(z, x, y []Word) (c Word)
+// (same as addVV except for SBBQ instead of ADCQ and label names)
+TEXT ·subVV(SB),NOSPLIT,$0
+	JMP	math∕big·subVV(SB)
+
+// func addVW(z, x []Word, y Word) (c Word)
+TEXT ·addVW(SB),NOSPLIT,$0
+	JMP	math∕big·addVW(SB)
+
+// func subVW(z, x []Word, y Word) (c Word)
+// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
+TEXT ·subVW(SB),NOSPLIT,$0
+	JMP	math∕big·subVW(SB)
+
+// func shlVU(z, x []Word, s uint) (c Word)
+TEXT ·shlVU(SB),NOSPLIT,$0
+	JMP	math∕big·shlVU(SB)
+
+// func shrVU(z, x []Word, s uint) (c Word)
+TEXT ·shrVU(SB),NOSPLIT,$0
+	JMP	math∕big·shrVU(SB)
+
+// func mulAddVWW(z, x []Word, y, r Word) (c Word)
+TEXT ·mulAddVWW(SB),NOSPLIT,$0
+	JMP	math∕big·mulAddVWW(SB)
+
+// func addMulVVW(z, x []Word, y Word) (c Word)
+TEXT ·addMulVVW(SB),NOSPLIT,$0
+	JMP	math∕big·addMulVVW(SB)
+

vendor/github.com/remyoudompheng/bigfft/arith_arm.s

@@ -0,0 +1,36 @@
+// Trampolines to math/big assembly implementations.
+
+#include "textflag.h"
+
+// func addVV(z, x, y []Word) (c Word)
+TEXT ·addVV(SB),NOSPLIT,$0
+	B	math∕big·addVV(SB)
+
+// func subVV(z, x, y []Word) (c Word)
+TEXT ·subVV(SB),NOSPLIT,$0
+	B	math∕big·subVV(SB)
+
+// func addVW(z, x []Word, y Word) (c Word)
+TEXT ·addVW(SB),NOSPLIT,$0
+	B	math∕big·addVW(SB)
+
+// func subVW(z, x []Word, y Word) (c Word)
+TEXT ·subVW(SB),NOSPLIT,$0
+	B	math∕big·subVW(SB)
+
+// func shlVU(z, x []Word, s uint) (c Word)
+TEXT ·shlVU(SB),NOSPLIT,$0
+	B	math∕big·shlVU(SB)
+
+// func shrVU(z, x []Word, s uint) (c Word)
+TEXT ·shrVU(SB),NOSPLIT,$0
+	B	math∕big·shrVU(SB)
+
+// func mulAddVWW(z, x []Word, y, r Word) (c Word)
+TEXT ·mulAddVWW(SB),NOSPLIT,$0
+	B	math∕big·mulAddVWW(SB)
+
+// func addMulVVW(z, x []Word, y Word) (c Word)
+TEXT ·addMulVVW(SB),NOSPLIT,$0
+	B	math∕big·addMulVVW(SB)
+

vendor/github.com/remyoudompheng/bigfft/arith_arm64.s

@@ -0,0 +1,36 @@
+// Trampolines to math/big assembly implementations.
+
+#include "textflag.h"
+
+// func addVV(z, x, y []Word) (c Word)
+TEXT ·addVV(SB),NOSPLIT,$0
+	B	math∕big·addVV(SB)
+
+// func subVV(z, x, y []Word) (c Word)
+TEXT ·subVV(SB),NOSPLIT,$0
+	B	math∕big·subVV(SB)
+
+// func addVW(z, x []Word, y Word) (c Word)
+TEXT ·addVW(SB),NOSPLIT,$0
+	B	math∕big·addVW(SB)
+
+// func subVW(z, x []Word, y Word) (c Word)
+TEXT ·subVW(SB),NOSPLIT,$0
+	B	math∕big·subVW(SB)
+
+// func shlVU(z, x []Word, s uint) (c Word)
+TEXT ·shlVU(SB),NOSPLIT,$0
+	B	math∕big·shlVU(SB)
+
+// func shrVU(z, x []Word, s uint) (c Word)
+TEXT ·shrVU(SB),NOSPLIT,$0
+	B	math∕big·shrVU(SB)
+
+// func mulAddVWW(z, x []Word, y, r Word) (c Word)
+TEXT ·mulAddVWW(SB),NOSPLIT,$0
+	B	math∕big·mulAddVWW(SB)
+
+// func addMulVVW(z, x []Word, y Word) (c Word)
+TEXT ·addMulVVW(SB),NOSPLIT,$0
+	B	math∕big·addMulVVW(SB)
+

vendor/github.com/remyoudompheng/bigfft/arith_decl.go

@@ -0,0 +1,16 @@
+// Copyright 2010 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package bigfft
+
+import . "math/big"
+
+// implemented in arith_$GOARCH.s
+func addVV(z, x, y []Word) (c Word)
+func subVV(z, x, y []Word) (c Word)
+func addVW(z, x []Word, y Word) (c Word)
+func subVW(z, x []Word, y Word) (c Word)
+func shlVU(z, x []Word, s uint) (c Word)
+func mulAddVWW(z, x []Word, y, r Word) (c Word)
+func addMulVVW(z, x []Word, y Word) (c Word)

vendor/github.com/remyoudompheng/bigfft/arith_mips64x.s

@@ -0,0 +1,40 @@
+// Trampolines to math/big assembly implementations.
+
+// +build mips64 mips64le
+
+#include "textflag.h"
+
+// func addVV(z, x, y []Word) (c Word)
+TEXT ·addVV(SB),NOSPLIT,$0
+	JMP	math∕big·addVV(SB)
+
+// func subVV(z, x, y []Word) (c Word)
+// (same as addVV except for SBBQ instead of ADCQ and label names)
+TEXT ·subVV(SB),NOSPLIT,$0
+	JMP	math∕big·subVV(SB)
+
+// func addVW(z, x []Word, y Word) (c Word)
+TEXT ·addVW(SB),NOSPLIT,$0
+	JMP	math∕big·addVW(SB)
+
+// func subVW(z, x []Word, y Word) (c Word)
+// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
+TEXT ·subVW(SB),NOSPLIT,$0
+	JMP	math∕big·subVW(SB)
+
+// func shlVU(z, x []Word, s uint) (c Word)
+TEXT ·shlVU(SB),NOSPLIT,$0
+	JMP	math∕big·shlVU(SB)
+
+// func shrVU(z, x []Word, s uint) (c Word)
+TEXT ·shrVU(SB),NOSPLIT,$0
+	JMP	math∕big·shrVU(SB)
+
+// func mulAddVWW(z, x []Word, y, r Word) (c Word)
+TEXT ·mulAddVWW(SB),NOSPLIT,$0
+	JMP	math∕big·mulAddVWW(SB)
+
+// func addMulVVW(z, x []Word, y Word) (c Word)
+TEXT ·addMulVVW(SB),NOSPLIT,$0
+	JMP	math∕big·addMulVVW(SB)
+

vendor/github.com/remyoudompheng/bigfft/arith_mipsx.s

@@ -0,0 +1,40 @@
+// Trampolines to math/big assembly implementations.
+
+// +build mips mipsle
+
+#include "textflag.h"
+
+// func addVV(z, x, y []Word) (c Word)
+TEXT ·addVV(SB),NOSPLIT,$0
+	JMP	math∕big·addVV(SB)
+
+// func subVV(z, x, y []Word) (c Word)
+// (same as addVV except for SBBQ instead of ADCQ and label names)
+TEXT ·subVV(SB),NOSPLIT,$0
+	JMP	math∕big·subVV(SB)
+
+// func addVW(z, x []Word, y Word) (c Word)
+TEXT ·addVW(SB),NOSPLIT,$0
+	JMP	math∕big·addVW(SB)
+
+// func subVW(z, x []Word, y Word) (c Word)
+// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
+TEXT ·subVW(SB),NOSPLIT,$0
+	JMP	math∕big·subVW(SB)
+
+// func shlVU(z, x []Word, s uint) (c Word)
+TEXT ·shlVU(SB),NOSPLIT,$0
+	JMP	math∕big·shlVU(SB)
+
+// func shrVU(z, x []Word, s uint) (c Word)
+TEXT ·shrVU(SB),NOSPLIT,$0
+	JMP	math∕big·shrVU(SB)
+
+// func mulAddVWW(z, x []Word, y, r Word) (c Word)
+TEXT ·mulAddVWW(SB),NOSPLIT,$0
+	JMP	math∕big·mulAddVWW(SB)
+
+// func addMulVVW(z, x []Word, y Word) (c Word)
+TEXT ·addMulVVW(SB),NOSPLIT,$0
+	JMP	math∕big·addMulVVW(SB)
+

vendor/github.com/remyoudompheng/bigfft/arith_ppc64x.s

@@ -0,0 +1,38 @@
+// Trampolines to math/big assembly implementations.
+
+// +build ppc64 ppc64le
+
+#include "textflag.h"
+
+// func addVV(z, x, y []Word) (c Word)
+TEXT ·addVV(SB),NOSPLIT,$0
+	BR	math∕big·addVV(SB)
+
+// func subVV(z, x, y []Word) (c Word)
+TEXT ·subVV(SB),NOSPLIT,$0
+	BR	math∕big·subVV(SB)
+
+// func addVW(z, x []Word, y Word) (c Word)
+TEXT ·addVW(SB),NOSPLIT,$0
+	BR	math∕big·addVW(SB)
+
+// func subVW(z, x []Word, y Word) (c Word)
+TEXT ·subVW(SB),NOSPLIT,$0
+	BR	math∕big·subVW(SB)
+
+// func shlVU(z, x []Word, s uint) (c Word)
+TEXT ·shlVU(SB),NOSPLIT,$0
+	BR	math∕big·shlVU(SB)
+
+// func shrVU(z, x []Word, s uint) (c Word)
+TEXT ·shrVU(SB),NOSPLIT,$0
+	BR	math∕big·shrVU(SB)
+
+// func mulAddVWW(z, x []Word, y, r Word) (c Word)
+TEXT ·mulAddVWW(SB),NOSPLIT,$0
+	BR	math∕big·mulAddVWW(SB)
+
+// func addMulVVW(z, x []Word, y Word) (c Word)
+TEXT ·addMulVVW(SB),NOSPLIT,$0
+	BR	math∕big·addMulVVW(SB)
+

vendor/github.com/remyoudompheng/bigfft/arith_s390x.s

@@ -0,0 +1,37 @@
+
+// Trampolines to math/big assembly implementations.
+
+#include "textflag.h"
+
+// func addVV(z, x, y []Word) (c Word)
+TEXT ·addVV(SB),NOSPLIT,$0
+	BR	math∕big·addVV(SB)
+
+// func subVV(z, x, y []Word) (c Word)
+TEXT ·subVV(SB),NOSPLIT,$0
+	BR	math∕big·subVV(SB)
+
+// func addVW(z, x []Word, y Word) (c Word)
+TEXT ·addVW(SB),NOSPLIT,$0
+	BR	math∕big·addVW(SB)
+
+// func subVW(z, x []Word, y Word) (c Word)
+TEXT ·subVW(SB),NOSPLIT,$0
+	BR	math∕big·subVW(SB)
+
+// func shlVU(z, x []Word, s uint) (c Word)
+TEXT ·shlVU(SB),NOSPLIT,$0
+	BR	math∕big·shlVU(SB)
+
+// func shrVU(z, x []Word, s uint) (c Word)
+TEXT ·shrVU(SB),NOSPLIT,$0
+	BR	math∕big·shrVU(SB)
+
+// func mulAddVWW(z, x []Word, y, r Word) (c Word)
+TEXT ·mulAddVWW(SB),NOSPLIT,$0
+	BR	math∕big·mulAddVWW(SB)
+
+// func addMulVVW(z, x []Word, y Word) (c Word)
+TEXT ·addMulVVW(SB),NOSPLIT,$0
+	BR	math∕big·addMulVVW(SB)
+

vendor/github.com/remyoudompheng/bigfft/fermat.go

@@ -0,0 +1,216 @@
+package bigfft
+
+import (
+	"math/big"
+)
+
+// Arithmetic modulo 2^n+1.
+
+// A fermat of length w+1 represents a number modulo 2^(w*_W) + 1. The last
+// word is zero or one. A number has at most two representatives satisfying the
+// 0-1 last word constraint.
+type fermat nat
+
+func (n fermat) String() string { return nat(n).String() }
+
+func (z fermat) norm() {
+	n := len(z) - 1
+	c := z[n]
+	if c == 0 {
+		return
+	}
+	if z[0] >= c {
+		z[n] = 0
+		z[0] -= c
+		return
+	}
+	// z[0] < z[n].
+	subVW(z, z, c) // Substract c
+	if c > 1 {
+		z[n] -= c - 1
+		c = 1
+	}
+	// Add back c.
+	if z[n] == 1 {
+		z[n] = 0
+		return
+	} else {
+		addVW(z, z, 1)
+	}
+}
+
+// Shift computes (x << k) mod (2^n+1).
+func (z fermat) Shift(x fermat, k int) {
+	if len(z) != len(x) {
+		panic("len(z) != len(x) in Shift")
+	}
+	n := len(x) - 1
+	// Shift by n*_W is taking the opposite.
+	k %= 2 * n * _W
+	if k < 0 {
+		k += 2 * n * _W
+	}
+	neg := false
+	if k >= n*_W {
+		k -= n * _W
+		neg = true
+	}
+
+	kw, kb := k/_W, k%_W
+
+	z[n] = 1 // Add (-1)
+	if !neg {
+		for i := 0; i < kw; i++ {
+			z[i] = 0
+		}
+		// Shift left by kw words.
+		// x = a·2^(n-k) + b
+		// x<<k = (b<<k) - a
+		copy(z[kw:], x[:n-kw])
+		b := subVV(z[:kw+1], z[:kw+1], x[n-kw:])
+		if z[kw+1] > 0 {
+			z[kw+1] -= b
+		} else {
+			subVW(z[kw+1:], z[kw+1:], b)
+		}
+	} else {
+		for i := kw + 1; i < n; i++ {
+			z[i] = 0
+		}
+		// Shift left and negate, by kw words.
+		copy(z[:kw+1], x[n-kw:n+1])            // z_low = x_high
+		b := subVV(z[kw:n], z[kw:n], x[:n-kw]) // z_high -= x_low
+		z[n] -= b
+	}
+	// Add back 1.
+	if z[n] > 0 {
+		z[n]--
+	} else if z[0] < ^big.Word(0) {
+		z[0]++
+	} else {
+		addVW(z, z, 1)
+	}
+	// Shift left by kb bits
+	shlVU(z, z, uint(kb))
+	z.norm()
+}
+
+// ShiftHalf shifts x by k/2 bits the left. Shifting by 1/2 bit
+// is multiplication by sqrt(2) mod 2^n+1 which is 2^(3n/4) - 2^(n/4).
+// A temporary buffer must be provided in tmp.
+func (z fermat) ShiftHalf(x fermat, k int, tmp fermat) {
+	n := len(z) - 1
+	if k%2 == 0 {
+		z.Shift(x, k/2)
+		return
+	}
+	u := (k - 1) / 2
+	a := u + (3*_W/4)*n
+	b := u + (_W/4)*n
+	z.Shift(x, a)
+	tmp.Shift(x, b)
+	z.Sub(z, tmp)
+}
+
+// Add computes addition mod 2^n+1.
+func (z fermat) Add(x, y fermat) fermat {
+	if len(z) != len(x) {
+		panic("Add: len(z) != len(x)")
+	}
+	addVV(z, x, y) // there cannot be a carry here.
+	z.norm()
+	return z
+}
+
+// Sub computes substraction mod 2^n+1.
+func (z fermat) Sub(x, y fermat) fermat {
+	if len(z) != len(x) {
+		panic("Add: len(z) != len(x)")
+	}
+	n := len(y) - 1
+	b := subVV(z[:n], x[:n], y[:n])
+	b += y[n]
+	// If b > 0, we need to subtract b<<n, which is the same as adding b.
+	z[n] = x[n]
+	if z[0] <= ^big.Word(0)-b {
+		z[0] += b
+	} else {
+		addVW(z, z, b)
+	}
+	z.norm()
+	return z
+}
+
+func (z fermat) Mul(x, y fermat) fermat {
+	if len(x) != len(y) {
+		panic("Mul: len(x) != len(y)")
+	}
+	n := len(x) - 1
+	if n < 30 {
+		z = z[:2*n+2]
+		basicMul(z, x, y)
+		z = z[:2*n+1]
+	} else {
+		var xi, yi, zi big.Int
+		xi.SetBits(x)
+		yi.SetBits(y)
+		zi.SetBits(z)
+		zb := zi.Mul(&xi, &yi).Bits()
+		if len(zb) <= n {
+			// Short product.
+			copy(z, zb)
+			for i := len(zb); i < len(z); i++ {
+				z[i] = 0
+			}
+			return z
+		}
+		z = zb
+	}
+	// len(z) is at most 2n+1.
+	if len(z) > 2*n+1 {
+		panic("len(z) > 2n+1")
+	}
+	// We now have
+	// z = z[:n] + 1<<(n*W) * z[n:2n+1]
+	// which normalizes to:
+	// z = z[:n] - z[n:2n] + z[2n]
+	c1 := big.Word(0)
+	if len(z) > 2*n {
+		c1 = addVW(z[:n], z[:n], z[2*n])
+	}
+	c2 := big.Word(0)
+	if len(z) >= 2*n {
+		c2 = subVV(z[:n], z[:n], z[n:2*n])
+	} else {
+		m := len(z) - n
+		c2 = subVV(z[:m], z[:m], z[n:])
+		c2 = subVW(z[m:n], z[m:n], c2)
+	}
+	// Restore carries.
+	// Substracting z[n] -= c2 is the same
+	// as z[0] += c2
+	z = z[:n+1]
+	z[n] = c1
+	c := addVW(z, z, c2)
+	if c != 0 {
+		panic("impossible")
+	}
+	z.norm()
+	return z
+}
+
+// copied from math/big
+//
+// basicMul multiplies x and y and leaves the result in z.
+// The (non-normalized) result is placed in z[0 : len(x) + len(y)].
+func basicMul(z, x, y fermat) {
+	// initialize z
+	for i := 0; i < len(z); i++ {
+		z[i] = 0
+	}
+	for i, d := range y {
+		if d != 0 {
+			z[len(x)+i] = addMulVVW(z[i:i+len(x)], x, d)
+		}
+	}
+}

vendor/github.com/remyoudompheng/bigfft/fft.go

@@ -0,0 +1,370 @@
+// Package bigfft implements multiplication of big.Int using FFT.
+//
+// The implementation is based on the Schönhage-Strassen method
+// using integer FFT modulo 2^n+1.
+package bigfft
+
+import (
+	"math/big"
+	"unsafe"
+)
+
+const _W = int(unsafe.Sizeof(big.Word(0)) * 8)
+
+type nat []big.Word
+
+func (n nat) String() string {
+	v := new(big.Int)
+	v.SetBits(n)
+	return v.String()
+}
+
+// fftThreshold is the size (in words) above which FFT is used over
+// Karatsuba from math/big.
+//
+// TestCalibrate seems to indicate a threshold of 60kbits on 32-bit
+// arches and 110kbits on 64-bit arches.
+var fftThreshold = 1800
+
+// Mul computes the product x*y and returns z.
+// It can be used instead of the Mul method of
+// *big.Int from math/big package.
+func Mul(x, y *big.Int) *big.Int {
+	xwords := len(x.Bits())
+	ywords := len(y.Bits())
+	if xwords > fftThreshold && ywords > fftThreshold {
+		return mulFFT(x, y)
+	}
+	return new(big.Int).Mul(x, y)
+}
+
+func mulFFT(x, y *big.Int) *big.Int {
+	var xb, yb nat = x.Bits(), y.Bits()
+	zb := fftmul(xb, yb)
+	z := new(big.Int)
+	z.SetBits(zb)
+	if x.Sign()*y.Sign() < 0 {
+		z.Neg(z)
+	}
+	return z
+}
+
+// A FFT size of K=1<<k is adequate when K is about 2*sqrt(N) where
+// N = x.Bitlen() + y.Bitlen().
+
+func fftmul(x, y nat) nat {
+	k, m := fftSize(x, y)
+	xp := polyFromNat(x, k, m)
+	yp := polyFromNat(y, k, m)
+	rp := xp.Mul(&yp)
+	return rp.Int()
+}
+
+// fftSizeThreshold[i] is the maximal size (in bits) where we should use
+// fft size i.
+var fftSizeThreshold = [...]int64{0, 0, 0,
+	4 << 10, 8 << 10, 16 << 10, // 5 
+	32 << 10, 64 << 10, 1 << 18, 1 << 20, 3 << 20, // 10
+	8 << 20, 30 << 20, 100 << 20, 300 << 20, 600 << 20,
+}
+
+// returns the FFT length k, m the number of words per chunk
+// such that m << k is larger than the number of words
+// in x*y.
+func fftSize(x, y nat) (k uint, m int) {
+	words := len(x) + len(y)
+	bits := int64(words) * int64(_W)
+	k = uint(len(fftSizeThreshold))
+	for i := range fftSizeThreshold {
+		if fftSizeThreshold[i] > bits {
+			k = uint(i)
+			break
+		}
+	}
+	// The 1<<k chunks of m words must have N bits so that
+	// 2^N-1 is larger than x*y. That is, m<<k > words
+	m = words>>k + 1
+	return
+}
+
+// valueSize returns the length (in words) to use for polynomial
+// coefficients, to compute a correct product of polynomials P*Q
+// where deg(P*Q) < K (== 1<<k) and where coefficients of P and Q are
+// less than b^m (== 1 << (m*_W)).
+// The chosen length (in bits) must be a multiple of 1 << (k-extra).
+func valueSize(k uint, m int, extra uint) int {
+	// The coefficients of P*Q are less than b^(2m)*K
+	// so we need W * valueSize >= 2*m*W+K
+	n := 2*m*_W + int(k) // necessary bits
+	K := 1 << (k - extra)
+	if K < _W {
+		K = _W
+	}
+	n = ((n / K) + 1) * K // round to a multiple of K
+	return n / _W
+}
+
+// poly represents an integer via a polynomial in Z[x]/(x^K+1)
+// where K is the FFT length and b^m is the computation basis 1<<(m*_W).
+// If P = a[0] + a[1] x + ... a[n] x^(K-1), the associated natural number
+// is P(b^m).
+type poly struct {
+	k uint  // k is such that K = 1<<k.
+	m int   // the m such that P(b^m) is the original number.
+	a []nat // a slice of at most K m-word coefficients.
+}
+
+// polyFromNat slices the number x into a polynomial
+// with 1<<k coefficients made of m words.
+func polyFromNat(x nat, k uint, m int) poly {
+	p := poly{k: k, m: m}
+	length := len(x)/m + 1
+	p.a = make([]nat, length)
+	for i := range p.a {
+		if len(x) < m {
+			p.a[i] = make(nat, m)
+			copy(p.a[i], x)
+			break
+		}
+		p.a[i] = x[:m]
+		x = x[m:]
+	}
+	return p
+}
+
+// Int evaluates back a poly to its integer value.
+func (p *poly) Int() nat {
+	length := len(p.a)*p.m + 1
+	if na := len(p.a); na > 0 {
+		length += len(p.a[na-1])
+	}
+	n := make(nat, length)
+	m := p.m
+	np := n
+	for i := range p.a {
+		l := len(p.a[i])
+		c := addVV(np[:l], np[:l], p.a[i])
+		if np[l] < ^big.Word(0) {
+			np[l] += c
+		} else {
+			addVW(np[l:], np[l:], c)
+		}
+		np = np[m:]
+	}
+	n = trim(n)
+	return n
+}
+
+func trim(n nat) nat {
+	for i := range n {
+		if n[len(n)-1-i] != 0 {
+			return n[:len(n)-i]
+		}
+	}
+	return nil
+}
+
+// Mul multiplies p and q modulo X^K-1, where K = 1<<p.k.
+// The product is done via a Fourier transform.
+func (p *poly) Mul(q *poly) poly {
+	// extra=2 because:
+	// * some power of 2 is a K-th root of unity when n is a multiple of K/2.
+	// * 2 itself is a square (see fermat.ShiftHalf)
+	n := valueSize(p.k, p.m, 2)
+
+	pv, qv := p.Transform(n), q.Transform(n)
+	rv := pv.Mul(&qv)
+	r := rv.InvTransform()
+	r.m = p.m
+	return r
+}
+
+// A polValues represents the value of a poly at the powers of a
+// K-th root of unity θ=2^(l/2) in Z/(b^n+1)Z, where b^n = 2^(K/4*l).
+type polValues struct {
+	k      uint     // k is such that K = 1<<k.
+	n      int      // the length of coefficients, n*_W a multiple of K/4.
+	values []fermat // a slice of K (n+1)-word values
+}
+
+// Transform evaluates p at θ^i for i = 0...K-1, where
+// θ is a K-th primitive root of unity in Z/(b^n+1)Z.
+func (p *poly) Transform(n int) polValues {
+	k := p.k
+	inputbits := make([]big.Word, (n+1)<<k)
+	input := make([]fermat, 1<<k)
+	// Now computed q(ω^i) for i = 0 ... K-1
+	valbits := make([]big.Word, (n+1)<<k)
+	values := make([]fermat, 1<<k)
+	for i := range values {
+		input[i] = inputbits[i*(n+1) : (i+1)*(n+1)]
+		if i < len(p.a) {
+			copy(input[i], p.a[i])
+		}
+		values[i] = fermat(valbits[i*(n+1) : (i+1)*(n+1)])
+	}
+	fourier(values, input, false, n, k)
+	return polValues{k, n, values}
+}
+
+// InvTransform reconstructs p (modulo X^K - 1) from its
+// values at θ^i for i = 0..K-1.
+func (v *polValues) InvTransform() poly {
+	k, n := v.k, v.n
+
+	// Perform an inverse Fourier transform to recover p.
+	pbits := make([]big.Word, (n+1)<<k)
+	p := make([]fermat, 1<<k)
+	for i := range p {
+		p[i] = fermat(pbits[i*(n+1) : (i+1)*(n+1)])
+	}
+	fourier(p, v.values, true, n, k)
+	// Divide by K, and untwist q to recover p.
+	u := make(fermat, n+1)
+	a := make([]nat, 1<<k)
+	for i := range p {
+		u.Shift(p[i], -int(k))
+		copy(p[i], u)
+		a[i] = nat(p[i])
+	}
+	return poly{k: k, m: 0, a: a}
+}
+
+// NTransform evaluates p at θω^i for i = 0...K-1, where
+// θ is a (2K)-th primitive root of unity in Z/(b^n+1)Z
+// and ω = θ².
+func (p *poly) NTransform(n int) polValues {
+	k := p.k
+	if len(p.a) >= 1<<k {
+		panic("Transform: len(p.a) >= 1<<k")
+	}
+	// θ is represented as a shift.
+	θshift := (n * _W) >> k
+	// p(x) = a_0 + a_1 x + ... + a_{K-1} x^(K-1)
+	// p(θx) = q(x) where
+	// q(x) = a_0 + θa_1 x + ... + θ^(K-1) a_{K-1} x^(K-1)
+	//
+	// Twist p by θ to obtain q.
+	tbits := make([]big.Word, (n+1)<<k)
+	twisted := make([]fermat, 1<<k)
+	src := make(fermat, n+1)
+	for i := range twisted {
+		twisted[i] = fermat(tbits[i*(n+1) : (i+1)*(n+1)])
+		if i < len(p.a) {
+			for i := range src {
+				src[i] = 0
+			}
+			copy(src, p.a[i])
+			twisted[i].Shift(src, θshift*i)
+		}
+	}
+
+	// Now computed q(ω^i) for i = 0 ... K-1
+	valbits := make([]big.Word, (n+1)<<k)
+	values := make([]fermat, 1<<k)
+	for i := range values {
+		values[i] = fermat(valbits[i*(n+1) : (i+1)*(n+1)])
+	}
+	fourier(values, twisted, false, n, k)
+	return polValues{k, n, values}
+}
+
+// InvTransform reconstructs a polynomial from its values at
+// roots of x^K+1. The m field of the returned polynomial
+// is unspecified.
+func (v *polValues) InvNTransform() poly {
+	k := v.k
+	n := v.n
+	θshift := (n * _W) >> k
+
+	// Perform an inverse Fourier transform to recover q.
+	qbits := make([]big.Word, (n+1)<<k)
+	q := make([]fermat, 1<<k)
+	for i := range q {
+		q[i] = fermat(qbits[i*(n+1) : (i+1)*(n+1)])
+	}
+	fourier(q, v.values, true, n, k)
+
+	// Divide by K, and untwist q to recover p.
+	u := make(fermat, n+1)
+	a := make([]nat, 1<<k)
+	for i := range q {
+		u.Shift(q[i], -int(k)-i*θshift)
+		copy(q[i], u)
+		a[i] = nat(q[i])
+	}
+	return poly{k: k, m: 0, a: a}
+}
+
+// fourier performs an unnormalized Fourier transform
+// of src, a length 1<<k vector of numbers modulo b^n+1
+// where b = 1<<_W.
+func fourier(dst []fermat, src []fermat, backward bool, n int, k uint) {
+	var rec func(dst, src []fermat, size uint)
+	tmp := make(fermat, n+1)  // pre-allocate temporary variables.
+	tmp2 := make(fermat, n+1) // pre-allocate temporary variables.
+
+	// The recursion function of the FFT.
+	// The root of unity used in the transform is ω=1<<(ω2shift/2).
+	// The source array may use shifted indices (i.e. the i-th
+	// element is src[i << idxShift]).
+	rec = func(dst, src []fermat, size uint) {
+		idxShift := k - size
+		ω2shift := (4 * n * _W) >> size
+		if backward {
+			ω2shift = -ω2shift
+		}
+
+		// Easy cases.
+		if len(src[0]) != n+1 || len(dst[0]) != n+1 {
+			panic("len(src[0]) != n+1 || len(dst[0]) != n+1")
+		}
+		switch size {
+		case 0:
+			copy(dst[0], src[0])
+			return
+		case 1:
+			dst[0].Add(src[0], src[1<<idxShift]) // dst[0] = src[0] + src[1]
+			dst[1].Sub(src[0], src[1<<idxShift]) // dst[1] = src[0] - src[1]
+			return
+		}
+
+		// Let P(x) = src[0] + src[1<<idxShift] * x + ... + src[K-1 << idxShift] * x^(K-1)
+		// The P(x) = Q1(x²) + x*Q2(x²)
+		// where Q1's coefficients are src with indices shifted by 1
+		// where Q2's coefficients are src[1<<idxShift:] with indices shifted by 1
+
+		// Split destination vectors in halves.
+		dst1 := dst[:1<<(size-1)]
+		dst2 := dst[1<<(size-1):]
+		// Transform Q1 and Q2 in the halves.
+		rec(dst1, src, size-1)
+		rec(dst2, src[1<<idxShift:], size-1)
+
+		// Reconstruct P's transform from transforms of Q1 and Q2.
+		// dst[i]            is dst1[i] + ω^i * dst2[i]
+		// dst[i + 1<<(k-1)] is dst1[i] + ω^(i+K/2) * dst2[i]
+		//
+		for i := range dst1 {
+			tmp.ShiftHalf(dst2[i], i*ω2shift, tmp2) // ω^i * dst2[i]
+			dst2[i].Sub(dst1[i], tmp)
+			dst1[i].Add(dst1[i], tmp)
+		}
+	}
+	rec(dst, src, k)
+}
+
+// Mul returns the pointwise product of p and q.
+func (p *polValues) Mul(q *polValues) (r polValues) {
+	n := p.n
+	r.k, r.n = p.k, p.n
+	r.values = make([]fermat, len(p.values))
+	bits := make([]big.Word, len(p.values)*(n+1))
+	buf := make(fermat, 8*n)
+	for i := range r.values {
+		r.values[i] = bits[i*(n+1) : (i+1)*(n+1)]
+		z := buf.Mul(p.values[i], q.values[i])
+		copy(r.values[i], z)
+	}
+	return
+}

vendor/github.com/remyoudompheng/bigfft/go.mod

@@ -0,0 +1,3 @@
+module github.com/remyoudompheng/bigfft
+
+go 1.12

vendor/github.com/remyoudompheng/bigfft/scan.go

@@ -0,0 +1,70 @@
+package bigfft
+
+import (
+	"math/big"
+)
+
+// FromDecimalString converts the base 10 string
+// representation of a natural (non-negative) number
+// into a *big.Int.
+// Its asymptotic complexity is less than quadratic.
+func FromDecimalString(s string) *big.Int {
+	var sc scanner
+	z := new(big.Int)
+	sc.scan(z, s)
+	return z
+}
+
+type scanner struct {
+	// powers[i] is 10^(2^i * quadraticScanThreshold).
+	powers []*big.Int
+}
+
+func (s *scanner) chunkSize(size int) (int, *big.Int) {
+	if size <= quadraticScanThreshold {
+		panic("size < quadraticScanThreshold")
+	}
+	pow := uint(0)
+	for n := size; n > quadraticScanThreshold; n /= 2 {
+		pow++
+	}
+	// threshold * 2^(pow-1) <= size < threshold * 2^pow
+	return quadraticScanThreshold << (pow - 1), s.power(pow - 1)
+}
+
+func (s *scanner) power(k uint) *big.Int {
+	for i := len(s.powers); i <= int(k); i++ {
+		z := new(big.Int)
+		if i == 0 {
+			if quadraticScanThreshold%14 != 0 {
+				panic("quadraticScanThreshold % 14 != 0")
+			}
+			z.Exp(big.NewInt(1e14), big.NewInt(quadraticScanThreshold/14), nil)
+		} else {
+			z.Mul(s.powers[i-1], s.powers[i-1])
+		}
+		s.powers = append(s.powers, z)
+	}
+	return s.powers[k]
+}
+
+func (s *scanner) scan(z *big.Int, str string) {
+	if len(str) <= quadraticScanThreshold {
+		z.SetString(str, 10)
+		return
+	}
+	sz, pow := s.chunkSize(len(str))
+	// Scan the left half.
+	s.scan(z, str[:len(str)-sz])
+	// FIXME: reuse temporaries.
+	left := Mul(z, pow)
+	// Scan the right half
+	s.scan(z, str[len(str)-sz:])
+	z.Add(z, left)
+}
+
+// quadraticScanThreshold is the number of digits
+// below which big.Int.SetString is more efficient
+// than subquadratic algorithms.
+// 1232 digits fit in 4096 bits.
+const quadraticScanThreshold = 1232

vendor/github.com/uptrace/bun/dialect/sqlitedialect/LICENSE

@@ -0,0 +1,24 @@
+Copyright (c) 2021 Vladimir Mihailenco. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/uptrace/bun/dialect/sqlitedialect/dialect.go

@@ -0,0 +1,94 @@
+package sqlitedialect
+
+import (
+	"database/sql"
+	"reflect"
+	"sync"
+
+	"github.com/uptrace/bun/dialect"
+	"github.com/uptrace/bun/dialect/feature"
+	"github.com/uptrace/bun/dialect/sqltype"
+	"github.com/uptrace/bun/schema"
+)
+
+type Dialect struct {
+	tables   *schema.Tables
+	features feature.Feature
+
+	appenderMap sync.Map
+	scannerMap  sync.Map
+}
+
+func New() *Dialect {
+	d := new(Dialect)
+	d.tables = schema.NewTables(d)
+	d.features = feature.Returning | feature.InsertTableAlias | feature.DeleteTableAlias
+	return d
+}
+
+func (d *Dialect) Init(*sql.DB) {}
+
+func (d *Dialect) Name() dialect.Name {
+	return dialect.SQLite
+}
+
+func (d *Dialect) Features() feature.Feature {
+	return d.features
+}
+
+func (d *Dialect) Tables() *schema.Tables {
+	return d.tables
+}
+
+func (d *Dialect) OnTable(table *schema.Table) {
+	for _, field := range table.FieldMap {
+		d.onField(field)
+	}
+}
+
+func (d *Dialect) onField(field *schema.Field) {
+	// INTEGER PRIMARY KEY is an alias for the ROWID.
+	// It is safe to convert all ints to INTEGER, because SQLite types don't have size.
+	switch field.DiscoveredSQLType {
+	case sqltype.SmallInt, sqltype.BigInt:
+		field.DiscoveredSQLType = sqltype.Integer
+	}
+}
+
+func (d *Dialect) IdentQuote() byte {
+	return '"'
+}
+
+func (d *Dialect) Append(fmter schema.Formatter, b []byte, v interface{}) []byte {
+	return schema.Append(fmter, b, v, nil)
+}
+
+func (d *Dialect) Appender(typ reflect.Type) schema.AppenderFunc {
+	if v, ok := d.appenderMap.Load(typ); ok {
+		return v.(schema.AppenderFunc)
+	}
+
+	fn := schema.Appender(typ, nil)
+
+	if v, ok := d.appenderMap.LoadOrStore(typ, fn); ok {
+		return v.(schema.AppenderFunc)
+	}
+	return fn
+}
+
+func (d *Dialect) FieldAppender(field *schema.Field) schema.AppenderFunc {
+	return schema.FieldAppender(d, field)
+}
+
+func (d *Dialect) Scanner(typ reflect.Type) schema.ScannerFunc {
+	if v, ok := d.scannerMap.Load(typ); ok {
+		return v.(schema.ScannerFunc)
+	}
+
+	fn := scanner(typ)
+
+	if v, ok := d.scannerMap.LoadOrStore(typ, fn); ok {
+		return v.(schema.ScannerFunc)
+	}
+	return fn
+}

vendor/github.com/uptrace/bun/dialect/sqlitedialect/go.mod

@@ -0,0 +1,7 @@
+module github.com/uptrace/bun/dialect/sqlitedialect
+
+go 1.16
+
+replace github.com/uptrace/bun => ../..
+
+require github.com/uptrace/bun v0.4.3

vendor/github.com/uptrace/bun/dialect/sqlitedialect/go.sum

@@ -0,0 +1,22 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
+github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc h1:9lRDQMhESg+zvGYmW5DyG0UqvY96Bu5QYsTLvCHdrgo=
+github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc/go.mod h1:bciPuU6GHm1iF1pBvUfxfsH0Wmnc2VbpgvbI9ZWuIRs=
+github.com/vmihailenco/msgpack/v5 v5.3.4 h1:qMKAwOV+meBw2Y8k9cVwAy7qErtYCwBzZ2ellBfvnqc=
+github.com/vmihailenco/msgpack/v5 v5.3.4/go.mod h1:7xyJ9e+0+9SaZT0Wt1RGleJXzli6Q/V5KbhBonMG9jc=
+github.com/vmihailenco/tagparser/v2 v2.0.0 h1:y09buUbR+b5aycVFQs/g70pqKVZNBmxwAhO7/IwNM9g=
+github.com/vmihailenco/tagparser/v2 v2.0.0/go.mod h1:Wri+At7QHww0WTrCBeu4J6bNtoV6mEfg5OIWRZA9qds=
+golang.org/x/sys v0.0.0-20210616094352-59db8d763f22 h1:RqytpXGR1iVNX7psjB3ff8y7sNFinVFvkx1c8SjBkio=
+golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

vendor/github.com/uptrace/bun/dialect/sqlitedialect/scan.go

@@ -0,0 +1,28 @@
+package sqlitedialect
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/uptrace/bun/schema"
+)
+
+func scanner(typ reflect.Type) schema.ScannerFunc {
+	if typ.Kind() == reflect.Interface {
+		return scanInterface
+	}
+	return schema.Scanner(typ)
+}
+
+func scanInterface(dest reflect.Value, src interface{}) error {
+	if dest.IsNil() {
+		dest.Set(reflect.ValueOf(src))
+		return nil
+	}
+
+	dest = dest.Elem()
+	if fn := scanner(dest.Type()); fn != nil {
+		return fn(dest, src)
+	}
+	return fmt.Errorf("bun: can't scan %#v into %s", src, dest.Type())
+}

vendor/golang.org/x/mod/LICENSE

@@ -0,0 +1,27 @@
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/golang.org/x/mod/PATENTS

@@ -0,0 +1,22 @@
+Additional IP Rights Grant (Patents)
+
+"This implementation" means the copyrightable works distributed by
+Google as part of the Go project.
+
+Google hereby grants to You a perpetual, worldwide, non-exclusive,
+no-charge, royalty-free, irrevocable (except as stated in this section)
+patent license to make, have made, use, offer to sell, sell, import,
+transfer and otherwise run, modify and propagate the contents of this
+implementation of Go, where such license applies only to those patent
+claims, both currently owned or controlled by Google and acquired in
+the future, licensable by Google that are necessarily infringed by this
+implementation of Go.  This grant does not include claims that would be
+infringed only as a consequence of further modification of this
+implementation.  If you or your agent or exclusive licensee institute or
+order or agree to the institution of patent litigation against any
+entity (including a cross-claim or counterclaim in a lawsuit) alleging
+that this implementation of Go or any code incorporated within this
+implementation of Go constitutes direct or contributory patent
+infringement, or inducement of patent infringement, then any patent
+rights granted to you under this License for this implementation of Go
+shall terminate as of the date such litigation is filed.

vendor/golang.org/x/mod/semver/semver.go

@@ -0,0 +1,411 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package semver implements comparison of semantic version strings.
+// In this package, semantic version strings must begin with a leading "v",
+// as in "v1.0.0".
+//
+// The general form of a semantic version string accepted by this package is
+//
+//	vMAJOR[.MINOR[.PATCH[-PRERELEASE][+BUILD]]]
+//
+// where square brackets indicate optional parts of the syntax;
+// MAJOR, MINOR, and PATCH are decimal integers without extra leading zeros;
+// PRERELEASE and BUILD are each a series of non-empty dot-separated identifiers
+// using only alphanumeric characters and hyphens; and
+// all-numeric PRERELEASE identifiers must not have leading zeros.
+//
+// This package follows Semantic Versioning 2.0.0 (see semver.org)
+// with two exceptions. First, it requires the "v" prefix. Second, it recognizes
+// vMAJOR and vMAJOR.MINOR (with no prerelease or build suffixes)
+// as shorthands for vMAJOR.0.0 and vMAJOR.MINOR.0.
+package semver
+
+import "sort"
+
+// parsed returns the parsed form of a semantic version string.
+type parsed struct {
+	major      string
+	minor      string
+	patch      string
+	short      string
+	prerelease string
+	build      string
+	err        string
+}
+
+// IsValid reports whether v is a valid semantic version string.
+func IsValid(v string) bool {
+	_, ok := parse(v)
+	return ok
+}
+
+// Canonical returns the canonical formatting of the semantic version v.
+// It fills in any missing .MINOR or .PATCH and discards build metadata.
+// Two semantic versions compare equal only if their canonical formattings
+// are identical strings.
+// The canonical invalid semantic version is the empty string.
+func Canonical(v string) string {
+	p, ok := parse(v)
+	if !ok {
+		return ""
+	}
+	if p.build != "" {
+		return v[:len(v)-len(p.build)]
+	}
+	if p.short != "" {
+		return v + p.short
+	}
+	return v
+}
+
+// Major returns the major version prefix of the semantic version v.
+// For example, Major("v2.1.0") == "v2".
+// If v is an invalid semantic version string, Major returns the empty string.
+func Major(v string) string {
+	pv, ok := parse(v)
+	if !ok {
+		return ""
+	}
+	return v[:1+len(pv.major)]
+}
+
+// MajorMinor returns the major.minor version prefix of the semantic version v.
+// For example, MajorMinor("v2.1.0") == "v2.1".
+// If v is an invalid semantic version string, MajorMinor returns the empty string.
+func MajorMinor(v string) string {
+	pv, ok := parse(v)
+	if !ok {
+		return ""
+	}
+	i := 1 + len(pv.major)
+	if j := i + 1 + len(pv.minor); j <= len(v) && v[i] == '.' && v[i+1:j] == pv.minor {
+		return v[:j]
+	}
+	return v[:i] + "." + pv.minor
+}
+
+// Prerelease returns the prerelease suffix of the semantic version v.
+// For example, Prerelease("v2.1.0-pre+meta") == "-pre".
+// If v is an invalid semantic version string, Prerelease returns the empty string.
+func Prerelease(v string) string {
+	pv, ok := parse(v)
+	if !ok {
+		return ""
+	}
+	return pv.prerelease
+}
+
+// Build returns the build suffix of the semantic version v.
+// For example, Build("v2.1.0+meta") == "+meta".
+// If v is an invalid semantic version string, Build returns the empty string.
+func Build(v string) string {
+	pv, ok := parse(v)
+	if !ok {
+		return ""
+	}
+	return pv.build
+}
+
+// Compare returns an integer comparing two versions according to
+// semantic version precedence.
+// The result will be 0 if v == w, -1 if v < w, or +1 if v > w.
+//
+// An invalid semantic version string is considered less than a valid one.
+// All invalid semantic version strings compare equal to each other.
+func Compare(v, w string) int {
+	pv, ok1 := parse(v)
+	pw, ok2 := parse(w)
+	if !ok1 && !ok2 {
+		return 0
+	}
+	if !ok1 {
+		return -1
+	}
+	if !ok2 {
+		return +1
+	}
+	if c := compareInt(pv.major, pw.major); c != 0 {
+		return c
+	}
+	if c := compareInt(pv.minor, pw.minor); c != 0 {
+		return c
+	}
+	if c := compareInt(pv.patch, pw.patch); c != 0 {
+		return c
+	}
+	return comparePrerelease(pv.prerelease, pw.prerelease)
+}
+
+// Max canonicalizes its arguments and then returns the version string
+// that compares greater.
+//
+// Deprecated: use Compare instead. In most cases, returning a canonicalized
+// version is not expected or desired.
+func Max(v, w string) string {
+	v = Canonical(v)
+	w = Canonical(w)
+	if Compare(v, w) > 0 {
+		return v
+	}
+	return w
+}
+
+// ByVersion implements sort.Interface for sorting semantic version strings.
+type ByVersion []string
+
+func (vs ByVersion) Len() int      { return len(vs) }
+func (vs ByVersion) Swap(i, j int) { vs[i], vs[j] = vs[j], vs[i] }
+func (vs ByVersion) Less(i, j int) bool {
+	cmp := Compare(vs[i], vs[j])
+	if cmp != 0 {
+		return cmp < 0
+	}
+	return vs[i] < vs[j]
+}
+
+// Sort sorts a list of semantic version strings using ByVersion.
+func Sort(list []string) {
+	sort.Sort(ByVersion(list))
+}
+
+func parse(v string) (p parsed, ok bool) {
+	if v == "" || v[0] != 'v' {
+		p.err = "missing v prefix"
+		return
+	}
+	p.major, v, ok = parseInt(v[1:])
+	if !ok {
+		p.err = "bad major version"
+		return
+	}
+	if v == "" {
+		p.minor = "0"
+		p.patch = "0"
+		p.short = ".0.0"
+		return
+	}
+	if v[0] != '.' {
+		p.err = "bad minor prefix"
+		ok = false
+		return
+	}
+	p.minor, v, ok = parseInt(v[1:])
+	if !ok {
+		p.err = "bad minor version"
+		return
+	}
+	if v == "" {
+		p.patch = "0"
+		p.short = ".0"
+		return
+	}
+	if v[0] != '.' {
+		p.err = "bad patch prefix"
+		ok = false
+		return
+	}
+	p.patch, v, ok = parseInt(v[1:])
+	if !ok {
+		p.err = "bad patch version"
+		return
+	}
+	if len(v) > 0 && v[0] == '-' {
+		p.prerelease, v, ok = parsePrerelease(v)
+		if !ok {
+			p.err = "bad prerelease"
+			return
+		}
+	}
+	if len(v) > 0 && v[0] == '+' {
+		p.build, v, ok = parseBuild(v)
+		if !ok {
+			p.err = "bad build"
+			return
+		}
+	}
+	if v != "" {
+		p.err = "junk on end"
+		ok = false
+		return
+	}
+	ok = true
+	return
+}
+
+func parseInt(v string) (t, rest string, ok bool) {
+	if v == "" {
+		return
+	}
+	if v[0] < '0' || '9' < v[0] {
+		return
+	}
+	i := 1
+	for i < len(v) && '0' <= v[i] && v[i] <= '9' {
+		i++
+	}
+	if v[0] == '0' && i != 1 {
+		return
+	}
+	return v[:i], v[i:], true
+}
+
+func parsePrerelease(v string) (t, rest string, ok bool) {
+	// "A pre-release version MAY be denoted by appending a hyphen and
+	// a series of dot separated identifiers immediately following the patch version.
+	// Identifiers MUST comprise only ASCII alphanumerics and hyphen [0-9A-Za-z-].
+	// Identifiers MUST NOT be empty. Numeric identifiers MUST NOT include leading zeroes."
+	if v == "" || v[0] != '-' {
+		return
+	}
+	i := 1
+	start := 1
+	for i < len(v) && v[i] != '+' {
+		if !isIdentChar(v[i]) && v[i] != '.' {
+			return
+		}
+		if v[i] == '.' {
+			if start == i || isBadNum(v[start:i]) {
+				return
+			}
+			start = i + 1
+		}
+		i++
+	}
+	if start == i || isBadNum(v[start:i]) {
+		return
+	}
+	return v[:i], v[i:], true
+}
+
+func parseBuild(v string) (t, rest string, ok bool) {
+	if v == "" || v[0] != '+' {
+		return
+	}
+	i := 1
+	start := 1
+	for i < len(v) {
+		if !isIdentChar(v[i]) && v[i] != '.' {
+			return
+		}
+		if v[i] == '.' {
+			if start == i {
+				return
+			}
+			start = i + 1
+		}
+		i++
+	}
+	if start == i {
+		return
+	}
+	return v[:i], v[i:], true
+}
+
+func isIdentChar(c byte) bool {
+	return 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z' || '0' <= c && c <= '9' || c == '-'
+}
+
+func isBadNum(v string) bool {
+	i := 0
+	for i < len(v) && '0' <= v[i] && v[i] <= '9' {
+		i++
+	}
+	return i == len(v) && i > 1 && v[0] == '0'
+}
+
+func isNum(v string) bool {
+	i := 0
+	for i < len(v) && '0' <= v[i] && v[i] <= '9' {
+		i++
+	}
+	return i == len(v)
+}
+
+func compareInt(x, y string) int {
+	if x == y {
+		return 0
+	}
+	if len(x) < len(y) {
+		return -1
+	}
+	if len(x) > len(y) {
+		return +1
+	}
+	if x < y {
+		return -1
+	} else {
+		return +1
+	}
+}
+
+func comparePrerelease(x, y string) int {
+	// "When major, minor, and patch are equal, a pre-release version has
+	// lower precedence than a normal version.
+	// Example: 1.0.0-alpha < 1.0.0.
+	// Precedence for two pre-release versions with the same major, minor,
+	// and patch version MUST be determined by comparing each dot separated
+	// identifier from left to right until a difference is found as follows:
+	// identifiers consisting of only digits are compared numerically and
+	// identifiers with letters or hyphens are compared lexically in ASCII
+	// sort order. Numeric identifiers always have lower precedence than
+	// non-numeric identifiers. A larger set of pre-release fields has a
+	// higher precedence than a smaller set, if all of the preceding
+	// identifiers are equal.
+	// Example: 1.0.0-alpha < 1.0.0-alpha.1 < 1.0.0-alpha.beta <
+	// 1.0.0-beta < 1.0.0-beta.2 < 1.0.0-beta.11 < 1.0.0-rc.1 < 1.0.0."
+	if x == y {
+		return 0
+	}
+	if x == "" {
+		return +1
+	}
+	if y == "" {
+		return -1
+	}
+	for x != "" && y != "" {
+		x = x[1:] // skip - or .
+		y = y[1:] // skip - or .
+		var dx, dy string
+		dx, x = nextIdent(x)
+		dy, y = nextIdent(y)
+		if dx != dy {
+			ix := isNum(dx)
+			iy := isNum(dy)
+			if ix != iy {
+				if ix {
+					return -1
+				} else {
+					return +1
+				}
+			}
+			if ix {
+				if len(dx) < len(dy) {
+					return -1
+				}
+				if len(dx) > len(dy) {
+					return +1
+				}
+			}
+			if dx < dy {
+				return -1
+			} else {
+				return +1
+			}
+		}
+	}
+	if x == "" {
+		return -1
+	} else {
+		return +1
+	}
+}
+
+func nextIdent(x string) (dx, rest string) {
+	i := 0
+	for i < len(x) && x[i] != '.' {
+		i++
+	}
+	return x[:i], x[i:]
+}

vendor/golang.org/x/sys/cpu/cpu.go

@@ -56,6 +56,7 @@ var X86 struct {
 	HasAVX512BF16       bool // Advanced vector extension 512 BFloat16 Instructions
 	HasBMI1             bool // Bit manipulation instruction set 1
 	HasBMI2             bool // Bit manipulation instruction set 2
+	HasCX16             bool // Compare and exchange 16 Bytes
 	HasERMS             bool // Enhanced REP for MOVSB and STOSB
 	HasFMA              bool // Fused-multiply-add instructions
 	HasOSXSAVE          bool // OS supports XSAVE/XRESTOR for saving/restoring XMM registers.

vendor/golang.org/x/sys/cpu/cpu_x86.go

@@ -39,6 +39,7 @@ func initOptions() {
 		{Name: "avx512bf16", Feature: &X86.HasAVX512BF16},
 		{Name: "bmi1", Feature: &X86.HasBMI1},
 		{Name: "bmi2", Feature: &X86.HasBMI2},
+		{Name: "cx16", Feature: &X86.HasCX16},
 		{Name: "erms", Feature: &X86.HasERMS},
 		{Name: "fma", Feature: &X86.HasFMA},
 		{Name: "osxsave", Feature: &X86.HasOSXSAVE},
@@ -73,6 +74,7 @@ func archInit() {
 	X86.HasPCLMULQDQ = isSet(1, ecx1)
 	X86.HasSSSE3 = isSet(9, ecx1)
 	X86.HasFMA = isSet(12, ecx1)
+	X86.HasCX16 = isSet(13, ecx1)
 	X86.HasSSE41 = isSet(19, ecx1)
 	X86.HasSSE42 = isSet(20, ecx1)
 	X86.HasPOPCNT = isSet(23, ecx1)

vendor/golang.org/x/sys/execabs/execabs.go

@@ -0,0 +1,102 @@
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package execabs is a drop-in replacement for os/exec
+// that requires PATH lookups to find absolute paths.
+// That is, execabs.Command("cmd") runs the same PATH lookup
+// as exec.Command("cmd"), but if the result is a path
+// which is relative, the Run and Start methods will report
+// an error instead of running the executable.
+//
+// See https://blog.golang.org/path-security for more information
+// about when it may be necessary or appropriate to use this package.
+package execabs
+
+import (
+	"context"
+	"fmt"
+	"os/exec"
+	"path/filepath"
+	"reflect"
+	"unsafe"
+)
+
+// ErrNotFound is the error resulting if a path search failed to find an executable file.
+// It is an alias for exec.ErrNotFound.
+var ErrNotFound = exec.ErrNotFound
+
+// Cmd represents an external command being prepared or run.
+// It is an alias for exec.Cmd.
+type Cmd = exec.Cmd
+
+// Error is returned by LookPath when it fails to classify a file as an executable.
+// It is an alias for exec.Error.
+type Error = exec.Error
+
+// An ExitError reports an unsuccessful exit by a command.
+// It is an alias for exec.ExitError.
+type ExitError = exec.ExitError
+
+func relError(file, path string) error {
+	return fmt.Errorf("%s resolves to executable in current directory (.%c%s)", file, filepath.Separator, path)
+}
+
+// LookPath searches for an executable named file in the directories
+// named by the PATH environment variable. If file contains a slash,
+// it is tried directly and the PATH is not consulted. The result will be
+// an absolute path.
+//
+// LookPath differs from exec.LookPath in its handling of PATH lookups,
+// which are used for file names without slashes. If exec.LookPath's
+// PATH lookup would have returned an executable from the current directory,
+// LookPath instead returns an error.
+func LookPath(file string) (string, error) {
+	path, err := exec.LookPath(file)
+	if err != nil {
+		return "", err
+	}
+	if filepath.Base(file) == file && !filepath.IsAbs(path) {
+		return "", relError(file, path)
+	}
+	return path, nil
+}
+
+func fixCmd(name string, cmd *exec.Cmd) {
+	if filepath.Base(name) == name && !filepath.IsAbs(cmd.Path) {
+		// exec.Command was called with a bare binary name and
+		// exec.LookPath returned a path which is not absolute.
+		// Set cmd.lookPathErr and clear cmd.Path so that it
+		// cannot be run.
+		lookPathErr := (*error)(unsafe.Pointer(reflect.ValueOf(cmd).Elem().FieldByName("lookPathErr").Addr().Pointer()))
+		if *lookPathErr == nil {
+			*lookPathErr = relError(name, cmd.Path)
+		}
+		cmd.Path = ""
+	}
+}
+
+// CommandContext is like Command but includes a context.
+//
+// The provided context is used to kill the process (by calling os.Process.Kill)
+// if the context becomes done before the command completes on its own.
+func CommandContext(ctx context.Context, name string, arg ...string) *exec.Cmd {
+	cmd := exec.CommandContext(ctx, name, arg...)
+	fixCmd(name, cmd)
+	return cmd
+
+}
+
+// Command returns the Cmd struct to execute the named program with the given arguments.
+// See exec.Command for most details.
+//
+// Command differs from exec.Command in its handling of PATH lookups,
+// which are used when the program name contains no slashes.
+// If exec.Command would have returned an exec.Cmd configured to run an
+// executable from the current directory, Command instead
+// returns an exec.Cmd that will return an error from Start or Run.
+func Command(name string, arg ...string) *exec.Cmd {
+	cmd := exec.Command(name, arg...)
+	fixCmd(name, cmd)
+	return cmd
+}

vendor/golang.org/x/sys/unix/ifreq_linux.go

@@ -0,0 +1,149 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build linux
+// +build linux
+
+package unix
+
+import (
+	"bytes"
+	"unsafe"
+)
+
+// Helpers for dealing with ifreq since it contains a union and thus requires a
+// lot of unsafe.Pointer casts to use properly.
+
+// An Ifreq is a type-safe wrapper around the raw ifreq struct. An Ifreq
+// contains an interface name and a union of arbitrary data which can be
+// accessed using the Ifreq's methods. To create an Ifreq, use the NewIfreq
+// function.
+//
+// Use the Name method to access the stored interface name. The union data
+// fields can be get and set using the following methods:
+//   - Uint16/SetUint16: flags
+//   - Uint32/SetUint32: ifindex, metric, mtu
+type Ifreq struct{ raw ifreq }
+
+// NewIfreq creates an Ifreq with the input network interface name after
+// validating the name does not exceed IFNAMSIZ-1 (trailing NULL required)
+// bytes.
+func NewIfreq(name string) (*Ifreq, error) {
+	// Leave room for terminating NULL byte.
+	if len(name) >= IFNAMSIZ {
+		return nil, EINVAL
+	}
+
+	var ifr ifreq
+	copy(ifr.Ifrn[:], name)
+
+	return &Ifreq{raw: ifr}, nil
+}
+
+// TODO(mdlayher): get/set methods for hardware address sockaddr, char array, etc.
+
+// Name returns the interface name associated with the Ifreq.
+func (ifr *Ifreq) Name() string {
+	// BytePtrToString requires a NULL terminator or the program may crash. If
+	// one is not present, just return the empty string.
+	if !bytes.Contains(ifr.raw.Ifrn[:], []byte{0x00}) {
+		return ""
+	}
+
+	return BytePtrToString(&ifr.raw.Ifrn[0])
+}
+
+// According to netdevice(7), only AF_INET addresses are returned for numerous
+// sockaddr ioctls. For convenience, we expose these as Inet4Addr since the Port
+// field and other data is always empty.
+
+// Inet4Addr returns the Ifreq union data from an embedded sockaddr as a C
+// in_addr/Go []byte (4-byte IPv4 address) value. If the sockaddr family is not
+// AF_INET, an error is returned.
+func (ifr *Ifreq) Inet4Addr() ([]byte, error) {
+	raw := *(*RawSockaddrInet4)(unsafe.Pointer(&ifr.raw.Ifru[:SizeofSockaddrInet4][0]))
+	if raw.Family != AF_INET {
+		// Cannot safely interpret raw.Addr bytes as an IPv4 address.
+		return nil, EINVAL
+	}
+
+	return raw.Addr[:], nil
+}
+
+// SetInet4Addr sets a C in_addr/Go []byte (4-byte IPv4 address) value in an
+// embedded sockaddr within the Ifreq's union data. v must be 4 bytes in length
+// or an error will be returned.
+func (ifr *Ifreq) SetInet4Addr(v []byte) error {
+	if len(v) != 4 {
+		return EINVAL
+	}
+
+	var addr [4]byte
+	copy(addr[:], v)
+
+	ifr.clear()
+	*(*RawSockaddrInet4)(
+		unsafe.Pointer(&ifr.raw.Ifru[:SizeofSockaddrInet4][0]),
+	) = RawSockaddrInet4{
+		// Always set IP family as ioctls would require it anyway.
+		Family: AF_INET,
+		Addr:   addr,
+	}
+
+	return nil
+}
+
+// Uint16 returns the Ifreq union data as a C short/Go uint16 value.
+func (ifr *Ifreq) Uint16() uint16 {
+	return *(*uint16)(unsafe.Pointer(&ifr.raw.Ifru[:2][0]))
+}
+
+// SetUint16 sets a C short/Go uint16 value as the Ifreq's union data.
+func (ifr *Ifreq) SetUint16(v uint16) {
+	ifr.clear()
+	*(*uint16)(unsafe.Pointer(&ifr.raw.Ifru[:2][0])) = v
+}
+
+// Uint32 returns the Ifreq union data as a C int/Go uint32 value.
+func (ifr *Ifreq) Uint32() uint32 {
+	return *(*uint32)(unsafe.Pointer(&ifr.raw.Ifru[:4][0]))
+}
+
+// SetUint32 sets a C int/Go uint32 value as the Ifreq's union data.
+func (ifr *Ifreq) SetUint32(v uint32) {
+	ifr.clear()
+	*(*uint32)(unsafe.Pointer(&ifr.raw.Ifru[:4][0])) = v
+}
+
+// clear zeroes the ifreq's union field to prevent trailing garbage data from
+// being sent to the kernel if an ifreq is reused.
+func (ifr *Ifreq) clear() {
+	for i := range ifr.raw.Ifru {
+		ifr.raw.Ifru[i] = 0
+	}
+}
+
+// TODO(mdlayher): export as IfreqData? For now we can provide helpers such as
+// IoctlGetEthtoolDrvinfo which use these APIs under the hood.
+
+// An ifreqData is an Ifreq which carries pointer data. To produce an ifreqData,
+// use the Ifreq.withData method.
+type ifreqData struct {
+	name [IFNAMSIZ]byte
+	// A type separate from ifreq is required in order to comply with the
+	// unsafe.Pointer rules since the "pointer-ness" of data would not be
+	// preserved if it were cast into the byte array of a raw ifreq.
+	data unsafe.Pointer
+	// Pad to the same size as ifreq.
+	_ [len(ifreq{}.Ifru) - SizeofPtr]byte
+}
+
+// withData produces an ifreqData with the pointer p set for ioctls which require
+// arbitrary pointer data.
+func (ifr Ifreq) withData(p unsafe.Pointer) ifreqData {
+	return ifreqData{
+		name: ifr.raw.Ifrn,
+		data: p,
+	}
+}

vendor/golang.org/x/sys/unix/ioctl_linux.go

@@ -5,7 +5,6 @@
 package unix
 
 import (
-	"runtime"
 	"unsafe"
 )
 
@@ -22,56 +21,42 @@ func IoctlRetInt(fd int, req uint) (int, error) {
 
 func IoctlGetUint32(fd int, req uint) (uint32, error) {
 	var value uint32
-	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
+	err := ioctlPtr(fd, req, unsafe.Pointer(&value))
 	return value, err
 }
 
 func IoctlGetRTCTime(fd int) (*RTCTime, error) {
 	var value RTCTime
-	err := ioctl(fd, RTC_RD_TIME, uintptr(unsafe.Pointer(&value)))
+	err := ioctlPtr(fd, RTC_RD_TIME, unsafe.Pointer(&value))
 	return &value, err
 }
 
 func IoctlSetRTCTime(fd int, value *RTCTime) error {
-	err := ioctl(fd, RTC_SET_TIME, uintptr(unsafe.Pointer(value)))
+	return ioctlPtr(fd, RTC_SET_TIME, unsafe.Pointer(value))
-	runtime.KeepAlive(value)
-	return err
 }
 
 func IoctlGetRTCWkAlrm(fd int) (*RTCWkAlrm, error) {
 	var value RTCWkAlrm
-	err := ioctl(fd, RTC_WKALM_RD, uintptr(unsafe.Pointer(&value)))
+	err := ioctlPtr(fd, RTC_WKALM_RD, unsafe.Pointer(&value))
 	return &value, err
 }
 
 func IoctlSetRTCWkAlrm(fd int, value *RTCWkAlrm) error {
-	err := ioctl(fd, RTC_WKALM_SET, uintptr(unsafe.Pointer(value)))
+	return ioctlPtr(fd, RTC_WKALM_SET, unsafe.Pointer(value))
-	runtime.KeepAlive(value)
-	return err
-}
-
-type ifreqEthtool struct {
-	name [IFNAMSIZ]byte
-	data unsafe.Pointer
 }
 
 // IoctlGetEthtoolDrvinfo fetches ethtool driver information for the network
 // device specified by ifname.
 func IoctlGetEthtoolDrvinfo(fd int, ifname string) (*EthtoolDrvinfo, error) {
-	// Leave room for terminating NULL byte.
+	ifr, err := NewIfreq(ifname)
-	if len(ifname) >= IFNAMSIZ {
+	if err != nil {
-		return nil, EINVAL
+		return nil, err
 	}
 
-	value := EthtoolDrvinfo{
+	value := EthtoolDrvinfo{Cmd: ETHTOOL_GDRVINFO}
-		Cmd: ETHTOOL_GDRVINFO,
+	ifrd := ifr.withData(unsafe.Pointer(&value))
-	}
+
-	ifreq := ifreqEthtool{
+	err = ioctlIfreqData(fd, SIOCETHTOOL, &ifrd)
-		data: unsafe.Pointer(&value),
-	}
-	copy(ifreq.name[:], ifname)
-	err := ioctl(fd, SIOCETHTOOL, uintptr(unsafe.Pointer(&ifreq)))
-	runtime.KeepAlive(ifreq)
 	return &value, err
 }
 
@@ -80,7 +65,7 @@ func IoctlGetEthtoolDrvinfo(fd int, ifname string) (*EthtoolDrvinfo, error) {
 // https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html.
 func IoctlGetWatchdogInfo(fd int) (*WatchdogInfo, error) {
 	var value WatchdogInfo
-	err := ioctl(fd, WDIOC_GETSUPPORT, uintptr(unsafe.Pointer(&value)))
+	err := ioctlPtr(fd, WDIOC_GETSUPPORT, unsafe.Pointer(&value))
 	return &value, err
 }
 
@@ -88,6 +73,7 @@ func IoctlGetWatchdogInfo(fd int) (*WatchdogInfo, error) {
 // more information, see:
 // https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html.
 func IoctlWatchdogKeepalive(fd int) error {
+	// arg is ignored and not a pointer, so ioctl is fine instead of ioctlPtr.
 	return ioctl(fd, WDIOC_KEEPALIVE, 0)
 }
 
@@ -95,9 +81,7 @@ func IoctlWatchdogKeepalive(fd int) error {
 // range of data conveyed in value to the file associated with the file
 // descriptor destFd. See the ioctl_ficlonerange(2) man page for details.
 func IoctlFileCloneRange(destFd int, value *FileCloneRange) error {
-	err := ioctl(destFd, FICLONERANGE, uintptr(unsafe.Pointer(value)))
+	return ioctlPtr(destFd, FICLONERANGE, unsafe.Pointer(value))
-	runtime.KeepAlive(value)
-	return err
 }
 
 // IoctlFileClone performs an FICLONE ioctl operation to clone the entire file
@@ -148,7 +132,7 @@ func IoctlFileDedupeRange(srcFd int, value *FileDedupeRange) error {
 		rawinfo.Reserved = value.Info[i].Reserved
 	}
 
-	err := ioctl(srcFd, FIDEDUPERANGE, uintptr(unsafe.Pointer(&buf[0])))
+	err := ioctlPtr(srcFd, FIDEDUPERANGE, unsafe.Pointer(&buf[0]))
 
 	// Output
 	for i := range value.Info {
@@ -166,31 +150,47 @@ func IoctlFileDedupeRange(srcFd int, value *FileDedupeRange) error {
 }
 
 func IoctlHIDGetDesc(fd int, value *HIDRawReportDescriptor) error {
-	err := ioctl(fd, HIDIOCGRDESC, uintptr(unsafe.Pointer(value)))
+	return ioctlPtr(fd, HIDIOCGRDESC, unsafe.Pointer(value))
-	runtime.KeepAlive(value)
-	return err
 }
 
 func IoctlHIDGetRawInfo(fd int) (*HIDRawDevInfo, error) {
 	var value HIDRawDevInfo
-	err := ioctl(fd, HIDIOCGRAWINFO, uintptr(unsafe.Pointer(&value)))
+	err := ioctlPtr(fd, HIDIOCGRAWINFO, unsafe.Pointer(&value))
 	return &value, err
 }
 
 func IoctlHIDGetRawName(fd int) (string, error) {
 	var value [_HIDIOCGRAWNAME_LEN]byte
-	err := ioctl(fd, _HIDIOCGRAWNAME, uintptr(unsafe.Pointer(&value[0])))
+	err := ioctlPtr(fd, _HIDIOCGRAWNAME, unsafe.Pointer(&value[0]))
 	return ByteSliceToString(value[:]), err
 }
 
 func IoctlHIDGetRawPhys(fd int) (string, error) {
 	var value [_HIDIOCGRAWPHYS_LEN]byte
-	err := ioctl(fd, _HIDIOCGRAWPHYS, uintptr(unsafe.Pointer(&value[0])))
+	err := ioctlPtr(fd, _HIDIOCGRAWPHYS, unsafe.Pointer(&value[0]))
 	return ByteSliceToString(value[:]), err
 }
 
 func IoctlHIDGetRawUniq(fd int) (string, error) {
 	var value [_HIDIOCGRAWUNIQ_LEN]byte
-	err := ioctl(fd, _HIDIOCGRAWUNIQ, uintptr(unsafe.Pointer(&value[0])))
+	err := ioctlPtr(fd, _HIDIOCGRAWUNIQ, unsafe.Pointer(&value[0]))
 	return ByteSliceToString(value[:]), err
 }
+
+// IoctlIfreq performs an ioctl using an Ifreq structure for input and/or
+// output. See the netdevice(7) man page for details.
+func IoctlIfreq(fd int, req uint, value *Ifreq) error {
+	// It is possible we will add more fields to *Ifreq itself later to prevent
+	// misuse, so pass the raw *ifreq directly.
+	return ioctlPtr(fd, req, unsafe.Pointer(&value.raw))
+}
+
+// TODO(mdlayher): export if and when IfreqData is exported.
+
+// ioctlIfreqData performs an ioctl using an ifreqData structure for input
+// and/or output. See the netdevice(7) man page for details.
+func ioctlIfreqData(fd int, req uint, value *ifreqData) error {
+	// The memory layout of IfreqData (type-safe) and ifreq (not type-safe) are
+	// identical so pass *IfreqData directly.
+	return ioctlPtr(fd, req, unsafe.Pointer(value))
+}

vendor/golang.org/x/sys/unix/mkerrors.sh

@@ -217,8 +217,6 @@ struct ltchars {
 #include <linux/genetlink.h>
 #include <linux/hdreg.h>
 #include <linux/hidraw.h>
-#include <linux/icmp.h>
-#include <linux/icmpv6.h>
 #include <linux/if.h>
 #include <linux/if_addr.h>
 #include <linux/if_alg.h>
@@ -502,7 +500,7 @@ ccflags="$@"
 		$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
 		$2 ~ /^LO_(KEY|NAME)_SIZE$/ ||
 		$2 ~ /^LOOP_(CLR|CTL|GET|SET)_/ ||
-		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|TCP|MCAST|EVFILT|NOTE|SHUT|PROT|MAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR|LOCAL)_/ ||
+		$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|TCP|MCAST|EVFILT|NOTE|SHUT|PROT|MAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR|LOCAL|TCPOPT)_/ ||
 		$2 ~ /^NFC_(GENL|PROTO|COMM|RF|SE|DIRECTION|LLCP|SOCKPROTO)_/ ||
 		$2 ~ /^NFC_.*_(MAX)?SIZE$/ ||
 		$2 ~ /^RAW_PAYLOAD_/ ||

vendor/golang.org/x/sys/unix/syscall_linux.go

@@ -66,11 +66,18 @@ func Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) {
 	return fchmodat(dirfd, path, mode)
 }
 
-//sys	ioctl(fd int, req uint, arg uintptr) (err error)
+//sys	ioctl(fd int, req uint, arg uintptr) (err error) = SYS_IOCTL
+//sys	ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) = SYS_IOCTL
 
-// ioctl itself should not be exposed directly, but additional get/set
+// ioctl itself should not be exposed directly, but additional get/set functions
-// functions for specific types are permissible.
+// for specific types are permissible. These are defined in ioctl.go and
-// These are defined in ioctl.go and ioctl_linux.go.
+// ioctl_linux.go.
+//
+// The third argument to ioctl is often a pointer but sometimes an integer.
+// Callers should use ioctlPtr when the third argument is a pointer and ioctl
+// when the third argument is an integer.
+//
+// TODO: some existing code incorrectly uses ioctl when it should use ioctlPtr.
 
 //sys	Linkat(olddirfd int, oldpath string, newdirfd int, newpath string, flags int) (err error)
 
@@ -1348,6 +1355,13 @@ func SetsockoptTpacketReq3(fd, level, opt int, tp *TpacketReq3) error {
 	return setsockopt(fd, level, opt, unsafe.Pointer(tp), unsafe.Sizeof(*tp))
 }
 
+func SetsockoptTCPRepairOpt(fd, level, opt int, o []TCPRepairOpt) (err error) {
+	if len(o) == 0 {
+		return EINVAL
+	}
+	return setsockopt(fd, level, opt, unsafe.Pointer(&o[0]), uintptr(SizeofTCPRepairOpt*len(o)))
+}
+
 // Keyctl Commands (http://man7.org/linux/man-pages/man2/keyctl.2.html)
 
 // KeyctlInt calls keyctl commands in which each argument is an int.
@@ -1859,7 +1873,7 @@ func Getpgrp() (pid int) {
 //sys	Nanosleep(time *Timespec, leftover *Timespec) (err error)
 //sys	PerfEventOpen(attr *PerfEventAttr, pid int, cpu int, groupFd int, flags int) (fd int, err error)
 //sys	PivotRoot(newroot string, putold string) (err error) = SYS_PIVOT_ROOT
-//sysnb	prlimit(pid int, resource int, newlimit *Rlimit, old *Rlimit) (err error) = SYS_PRLIMIT64
+//sysnb	Prlimit(pid int, resource int, newlimit *Rlimit, old *Rlimit) (err error) = SYS_PRLIMIT64
 //sys	Prctl(option int, arg2 uintptr, arg3 uintptr, arg4 uintptr, arg5 uintptr) (err error)
 //sys	Pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *Sigset_t) (n int, err error) = SYS_PSELECT6
 //sys	read(fd int, p []byte) (n int, err error)

vendor/golang.org/x/sys/unix/syscall_linux_386.go

@@ -105,7 +105,7 @@ const rlimInf32 = ^uint32(0)
 const rlimInf64 = ^uint64(0)
 
 func Getrlimit(resource int, rlim *Rlimit) (err error) {
-	err = prlimit(0, resource, nil, rlim)
+	err = Prlimit(0, resource, nil, rlim)
 	if err != ENOSYS {
 		return err
 	}
@@ -133,7 +133,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
 //sysnb	setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
 
 func Setrlimit(resource int, rlim *Rlimit) (err error) {
-	err = prlimit(0, resource, rlim, nil)
+	err = Prlimit(0, resource, rlim, nil)
 	if err != ENOSYS {
 		return err
 	}

vendor/golang.org/x/sys/unix/syscall_linux_arm.go

@@ -184,7 +184,7 @@ const rlimInf32 = ^uint32(0)
 const rlimInf64 = ^uint64(0)
 
 func Getrlimit(resource int, rlim *Rlimit) (err error) {
-	err = prlimit(0, resource, nil, rlim)
+	err = Prlimit(0, resource, nil, rlim)
 	if err != ENOSYS {
 		return err
 	}
@@ -212,7 +212,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
 //sysnb	setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
 
 func Setrlimit(resource int, rlim *Rlimit) (err error) {
-	err = prlimit(0, resource, rlim, nil)
+	err = Prlimit(0, resource, rlim, nil)
 	if err != ENOSYS {
 		return err
 	}

vendor/golang.org/x/sys/unix/syscall_linux_arm64.go

@@ -171,7 +171,7 @@ func Pipe2(p []int, flags int) (err error) {
 
 // Getrlimit prefers the prlimit64 system call. See issue 38604.
 func Getrlimit(resource int, rlim *Rlimit) error {
-	err := prlimit(0, resource, nil, rlim)
+	err := Prlimit(0, resource, nil, rlim)
 	if err != ENOSYS {
 		return err
 	}
@@ -180,7 +180,7 @@ func Getrlimit(resource int, rlim *Rlimit) error {
 
 // Setrlimit prefers the prlimit64 system call. See issue 38604.
 func Setrlimit(resource int, rlim *Rlimit) error {
-	err := prlimit(0, resource, rlim, nil)
+	err := Prlimit(0, resource, rlim, nil)
 	if err != ENOSYS {
 		return err
 	}

vendor/golang.org/x/sys/unix/syscall_linux_mipsx.go

@@ -157,7 +157,7 @@ type rlimit32 struct {
 //sysnb	getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT
 
 func Getrlimit(resource int, rlim *Rlimit) (err error) {
-	err = prlimit(0, resource, nil, rlim)
+	err = Prlimit(0, resource, nil, rlim)
 	if err != ENOSYS {
 		return err
 	}
@@ -185,7 +185,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
 //sysnb	setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
 
 func Setrlimit(resource int, rlim *Rlimit) (err error) {
-	err = prlimit(0, resource, rlim, nil)
+	err = Prlimit(0, resource, rlim, nil)
 	if err != ENOSYS {
 		return err
 	}

vendor/golang.org/x/sys/unix/syscall_linux_ppc.go

@@ -3,8 +3,7 @@
 // license that can be found in the LICENSE file.
 
 //go:build linux && ppc
-// +build linux
+// +build linux,ppc
-// +build ppc
 
 package unix
 
@@ -143,7 +142,7 @@ const rlimInf32 = ^uint32(0)
 const rlimInf64 = ^uint64(0)
 
 func Getrlimit(resource int, rlim *Rlimit) (err error) {
-	err = prlimit(0, resource, nil, rlim)
+	err = Prlimit(0, resource, nil, rlim)
 	if err != ENOSYS {
 		return err
 	}
@@ -171,7 +170,7 @@ func Getrlimit(resource int, rlim *Rlimit) (err error) {
 //sysnb	setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
 
 func Setrlimit(resource int, rlim *Rlimit) (err error) {
-	err = prlimit(0, resource, rlim, nil)
+	err = Prlimit(0, resource, rlim, nil)
 	if err != ENOSYS {
 		return err
 	}

vendor/golang.org/x/sys/unix/syscall_solaris.go

@@ -13,7 +13,10 @@
 package unix
 
 import (
+	"fmt"
+	"os"
 	"runtime"
+	"sync"
 	"syscall"
 	"unsafe"
 )
@@ -744,3 +747,240 @@ func Mmap(fd int, offset int64, length int, prot int, flags int) (data []byte, e
 func Munmap(b []byte) (err error) {
 	return mapper.Munmap(b)
 }
+
+// Event Ports
+
+type fileObjCookie struct {
+	fobj   *fileObj
+	cookie interface{}
+}
+
+// EventPort provides a safe abstraction on top of Solaris/illumos Event Ports.
+type EventPort struct {
+	port  int
+	mu    sync.Mutex
+	fds   map[uintptr]interface{}
+	paths map[string]*fileObjCookie
+}
+
+// PortEvent is an abstraction of the port_event C struct.
+// Compare Source against PORT_SOURCE_FILE or PORT_SOURCE_FD
+// to see if Path or Fd was the event source. The other will be
+// uninitialized.
+type PortEvent struct {
+	Cookie interface{}
+	Events int32
+	Fd     uintptr
+	Path   string
+	Source uint16
+	fobj   *fileObj
+}
+
+// NewEventPort creates a new EventPort including the
+// underlying call to port_create(3c).
+func NewEventPort() (*EventPort, error) {
+	port, err := port_create()
+	if err != nil {
+		return nil, err
+	}
+	e := &EventPort{
+		port:  port,
+		fds:   make(map[uintptr]interface{}),
+		paths: make(map[string]*fileObjCookie),
+	}
+	return e, nil
+}
+
+//sys	port_create() (n int, err error)
+//sys	port_associate(port int, source int, object uintptr, events int, user *byte) (n int, err error)
+//sys	port_dissociate(port int, source int, object uintptr) (n int, err error)
+//sys	port_get(port int, pe *portEvent, timeout *Timespec) (n int, err error)
+//sys	port_getn(port int, pe *portEvent, max uint32, nget *uint32, timeout *Timespec) (n int, err error)
+
+// Close closes the event port.
+func (e *EventPort) Close() error {
+	e.mu.Lock()
+	defer e.mu.Unlock()
+	e.fds = nil
+	e.paths = nil
+	return Close(e.port)
+}
+
+// PathIsWatched checks to see if path is associated with this EventPort.
+func (e *EventPort) PathIsWatched(path string) bool {
+	e.mu.Lock()
+	defer e.mu.Unlock()
+	_, found := e.paths[path]
+	return found
+}
+
+// FdIsWatched checks to see if fd is associated with this EventPort.
+func (e *EventPort) FdIsWatched(fd uintptr) bool {
+	e.mu.Lock()
+	defer e.mu.Unlock()
+	_, found := e.fds[fd]
+	return found
+}
+
+// AssociatePath wraps port_associate(3c) for a filesystem path including
+// creating the necessary file_obj from the provided stat information.
+func (e *EventPort) AssociatePath(path string, stat os.FileInfo, events int, cookie interface{}) error {
+	e.mu.Lock()
+	defer e.mu.Unlock()
+	if _, found := e.paths[path]; found {
+		return fmt.Errorf("%v is already associated with this Event Port", path)
+	}
+	fobj, err := createFileObj(path, stat)
+	if err != nil {
+		return err
+	}
+	fCookie := &fileObjCookie{fobj, cookie}
+	_, err = port_associate(e.port, PORT_SOURCE_FILE, uintptr(unsafe.Pointer(fobj)), events, (*byte)(unsafe.Pointer(&fCookie.cookie)))
+	if err != nil {
+		return err
+	}
+	e.paths[path] = fCookie
+	return nil
+}
+
+// DissociatePath wraps port_dissociate(3c) for a filesystem path.
+func (e *EventPort) DissociatePath(path string) error {
+	e.mu.Lock()
+	defer e.mu.Unlock()
+	f, ok := e.paths[path]
+	if !ok {
+		return fmt.Errorf("%v is not associated with this Event Port", path)
+	}
+	_, err := port_dissociate(e.port, PORT_SOURCE_FILE, uintptr(unsafe.Pointer(f.fobj)))
+	if err != nil {
+		return err
+	}
+	delete(e.paths, path)
+	return nil
+}
+
+// AssociateFd wraps calls to port_associate(3c) on file descriptors.
+func (e *EventPort) AssociateFd(fd uintptr, events int, cookie interface{}) error {
+	e.mu.Lock()
+	defer e.mu.Unlock()
+	if _, found := e.fds[fd]; found {
+		return fmt.Errorf("%v is already associated with this Event Port", fd)
+	}
+	pcookie := &cookie
+	_, err := port_associate(e.port, PORT_SOURCE_FD, fd, events, (*byte)(unsafe.Pointer(pcookie)))
+	if err != nil {
+		return err
+	}
+	e.fds[fd] = pcookie
+	return nil
+}
+
+// DissociateFd wraps calls to port_dissociate(3c) on file descriptors.
+func (e *EventPort) DissociateFd(fd uintptr) error {
+	e.mu.Lock()
+	defer e.mu.Unlock()
+	_, ok := e.fds[fd]
+	if !ok {
+		return fmt.Errorf("%v is not associated with this Event Port", fd)
+	}
+	_, err := port_dissociate(e.port, PORT_SOURCE_FD, fd)
+	if err != nil {
+		return err
+	}
+	delete(e.fds, fd)
+	return nil
+}
+
+func createFileObj(name string, stat os.FileInfo) (*fileObj, error) {
+	fobj := new(fileObj)
+	bs, err := ByteSliceFromString(name)
+	if err != nil {
+		return nil, err
+	}
+	fobj.Name = (*int8)(unsafe.Pointer(&bs[0]))
+	s := stat.Sys().(*syscall.Stat_t)
+	fobj.Atim.Sec = s.Atim.Sec
+	fobj.Atim.Nsec = s.Atim.Nsec
+	fobj.Mtim.Sec = s.Mtim.Sec
+	fobj.Mtim.Nsec = s.Mtim.Nsec
+	fobj.Ctim.Sec = s.Ctim.Sec
+	fobj.Ctim.Nsec = s.Ctim.Nsec
+	return fobj, nil
+}
+
+// GetOne wraps port_get(3c) and returns a single PortEvent.
+func (e *EventPort) GetOne(t *Timespec) (*PortEvent, error) {
+	pe := new(portEvent)
+	_, err := port_get(e.port, pe, t)
+	if err != nil {
+		return nil, err
+	}
+	p := new(PortEvent)
+	p.Events = pe.Events
+	p.Source = pe.Source
+	e.mu.Lock()
+	defer e.mu.Unlock()
+	switch pe.Source {
+	case PORT_SOURCE_FD:
+		p.Fd = uintptr(pe.Object)
+		cookie := (*interface{})(unsafe.Pointer(pe.User))
+		p.Cookie = *cookie
+		delete(e.fds, p.Fd)
+	case PORT_SOURCE_FILE:
+		p.fobj = (*fileObj)(unsafe.Pointer(uintptr(pe.Object)))
+		p.Path = BytePtrToString((*byte)(unsafe.Pointer(p.fobj.Name)))
+		cookie := (*interface{})(unsafe.Pointer(pe.User))
+		p.Cookie = *cookie
+		delete(e.paths, p.Path)
+	}
+	return p, nil
+}
+
+// Pending wraps port_getn(3c) and returns how many events are pending.
+func (e *EventPort) Pending() (int, error) {
+	var n uint32 = 0
+	_, err := port_getn(e.port, nil, 0, &n, nil)
+	return int(n), err
+}
+
+// Get wraps port_getn(3c) and fills a slice of PortEvent.
+// It will block until either min events have been received
+// or the timeout has been exceeded. It will return how many
+// events were actually received along with any error information.
+func (e *EventPort) Get(s []PortEvent, min int, timeout *Timespec) (int, error) {
+	if min == 0 {
+		return 0, fmt.Errorf("need to request at least one event or use Pending() instead")
+	}
+	if len(s) < min {
+		return 0, fmt.Errorf("len(s) (%d) is less than min events requested (%d)", len(s), min)
+	}
+	got := uint32(min)
+	max := uint32(len(s))
+	var err error
+	ps := make([]portEvent, max, max)
+	_, err = port_getn(e.port, &ps[0], max, &got, timeout)
+	// got will be trustworthy with ETIME, but not any other error.
+	if err != nil && err != ETIME {
+		return 0, err
+	}
+	e.mu.Lock()
+	defer e.mu.Unlock()
+	for i := 0; i < int(got); i++ {
+		s[i].Events = ps[i].Events
+		s[i].Source = ps[i].Source
+		switch ps[i].Source {
+		case PORT_SOURCE_FD:
+			s[i].Fd = uintptr(ps[i].Object)
+			cookie := (*interface{})(unsafe.Pointer(ps[i].User))
+			s[i].Cookie = *cookie
+			delete(e.fds, s[i].Fd)
+		case PORT_SOURCE_FILE:
+			s[i].fobj = (*fileObj)(unsafe.Pointer(uintptr(ps[i].Object)))
+			s[i].Path = BytePtrToString((*byte)(unsafe.Pointer(s[i].fobj.Name)))
+			cookie := (*interface{})(unsafe.Pointer(ps[i].User))
+			s[i].Cookie = *cookie
+			delete(e.paths, s[i].Path)
+		}
+	}
+	return int(got), err
+}

vendor/golang.org/x/sys/unix/syscall_unix.go

@@ -313,6 +313,10 @@ func Recvfrom(fd int, p []byte, flags int) (n int, from Sockaddr, err error) {
 	return
 }
 
+func Send(s int, buf []byte, flags int) (err error) {
+	return sendto(s, buf, flags, nil, 0)
+}
+
 func Sendto(fd int, p []byte, flags int, to Sockaddr) (err error) {
 	ptr, n, err := to.sockaddr()
 	if err != nil {

vendor/golang.org/x/sys/unix/zerrors_darwin_amd64.go

@@ -1206,6 +1206,7 @@ const (
 	RTF_DONE                          = 0x40
 	RTF_DYNAMIC                       = 0x10
 	RTF_GATEWAY                       = 0x2
+	RTF_GLOBAL                        = 0x40000000
 	RTF_HOST                          = 0x4
 	RTF_IFREF                         = 0x4000000
 	RTF_IFSCOPE                       = 0x1000000

vendor/golang.org/x/sys/unix/zerrors_darwin_arm64.go

@@ -1206,6 +1206,7 @@ const (
 	RTF_DONE                          = 0x40
 	RTF_DYNAMIC                       = 0x10
 	RTF_GATEWAY                       = 0x2
+	RTF_GLOBAL                        = 0x40000000
 	RTF_HOST                          = 0x4
 	RTF_IFREF                         = 0x4000000
 	RTF_IFSCOPE                       = 0x1000000

vendor/golang.org/x/sys/unix/zerrors_linux.go

@@ -228,6 +228,8 @@ const (
 	BPF_OR                                      = 0x40
 	BPF_PSEUDO_BTF_ID                           = 0x3
 	BPF_PSEUDO_CALL                             = 0x1
+	BPF_PSEUDO_FUNC                             = 0x4
+	BPF_PSEUDO_KFUNC_CALL                       = 0x2
 	BPF_PSEUDO_MAP_FD                           = 0x1
 	BPF_PSEUDO_MAP_VALUE                        = 0x2
 	BPF_RET                                     = 0x6
@@ -475,6 +477,8 @@ const (
 	DM_LIST_VERSIONS                            = 0xc138fd0d
 	DM_MAX_TYPE_NAME                            = 0x10
 	DM_NAME_LEN                                 = 0x80
+	DM_NAME_LIST_FLAG_DOESNT_HAVE_UUID          = 0x2
+	DM_NAME_LIST_FLAG_HAS_UUID                  = 0x1
 	DM_NOFLUSH_FLAG                             = 0x800
 	DM_PERSISTENT_DEV_FLAG                      = 0x8
 	DM_QUERY_INACTIVE_TABLE_FLAG                = 0x1000
@@ -494,9 +498,9 @@ const (
 	DM_UUID_FLAG                                = 0x4000
 	DM_UUID_LEN                                 = 0x81
 	DM_VERSION                                  = 0xc138fd00
-	DM_VERSION_EXTRA                            = "-ioctl (2021-02-01)"
+	DM_VERSION_EXTRA                            = "-ioctl (2021-03-22)"
 	DM_VERSION_MAJOR                            = 0x4
-	DM_VERSION_MINOR                            = 0x2c
+	DM_VERSION_MINOR                            = 0x2d
 	DM_VERSION_PATCHLEVEL                       = 0x0
 	DT_BLK                                      = 0x6
 	DT_CHR                                      = 0x2
@@ -981,12 +985,6 @@ const (
 	HPFS_SUPER_MAGIC                            = 0xf995e849
 	HUGETLBFS_MAGIC                             = 0x958458f6
 	IBSHIFT                                     = 0x10
-	ICMPV6_FILTER                               = 0x1
-	ICMPV6_FILTER_BLOCK                         = 0x1
-	ICMPV6_FILTER_BLOCKOTHERS                   = 0x3
-	ICMPV6_FILTER_PASS                          = 0x2
-	ICMPV6_FILTER_PASSONLY                      = 0x4
-	ICMP_FILTER                                 = 0x1
 	ICRNL                                       = 0x100
 	IFA_F_DADFAILED                             = 0x8
 	IFA_F_DEPRECATED                            = 0x20
@@ -1257,6 +1255,7 @@ const (
 	KEXEC_ARCH_PARISC                           = 0xf0000
 	KEXEC_ARCH_PPC                              = 0x140000
 	KEXEC_ARCH_PPC64                            = 0x150000
+	KEXEC_ARCH_RISCV                            = 0xf30000
 	KEXEC_ARCH_S390                             = 0x160000
 	KEXEC_ARCH_SH                               = 0x2a0000
 	KEXEC_ARCH_X86_64                           = 0x3e0000
@@ -1756,14 +1755,19 @@ const (
 	PERF_ATTR_SIZE_VER4                         = 0x68
 	PERF_ATTR_SIZE_VER5                         = 0x70
 	PERF_ATTR_SIZE_VER6                         = 0x78
+	PERF_ATTR_SIZE_VER7                         = 0x80
 	PERF_AUX_FLAG_COLLISION                     = 0x8
+	PERF_AUX_FLAG_CORESIGHT_FORMAT_CORESIGHT    = 0x0
+	PERF_AUX_FLAG_CORESIGHT_FORMAT_RAW          = 0x100
 	PERF_AUX_FLAG_OVERWRITE                     = 0x2
 	PERF_AUX_FLAG_PARTIAL                       = 0x4
+	PERF_AUX_FLAG_PMU_FORMAT_TYPE_MASK          = 0xff00
 	PERF_AUX_FLAG_TRUNCATED                     = 0x1
 	PERF_FLAG_FD_CLOEXEC                        = 0x8
 	PERF_FLAG_FD_NO_GROUP                       = 0x1
 	PERF_FLAG_FD_OUTPUT                         = 0x2
 	PERF_FLAG_PID_CGROUP                        = 0x4
+	PERF_HW_EVENT_MASK                          = 0xffffffff
 	PERF_MAX_CONTEXTS_PER_STACK                 = 0x8
 	PERF_MAX_STACK_DEPTH                        = 0x7f
 	PERF_MEM_BLK_ADDR                           = 0x4
@@ -1822,6 +1826,7 @@ const (
 	PERF_MEM_TLB_OS                             = 0x40
 	PERF_MEM_TLB_SHIFT                          = 0x1a
 	PERF_MEM_TLB_WK                             = 0x20
+	PERF_PMU_TYPE_SHIFT                         = 0x20
 	PERF_RECORD_KSYMBOL_FLAGS_UNREGISTER        = 0x1
 	PERF_RECORD_MISC_COMM_EXEC                  = 0x2000
 	PERF_RECORD_MISC_CPUMODE_MASK               = 0x7
@@ -1921,7 +1926,9 @@ const (
 	PR_PAC_APGAKEY                              = 0x10
 	PR_PAC_APIAKEY                              = 0x1
 	PR_PAC_APIBKEY                              = 0x2
+	PR_PAC_GET_ENABLED_KEYS                     = 0x3d
 	PR_PAC_RESET_KEYS                           = 0x36
+	PR_PAC_SET_ENABLED_KEYS                     = 0x3c
 	PR_SET_CHILD_SUBREAPER                      = 0x24
 	PR_SET_DUMPABLE                             = 0x4
 	PR_SET_ENDIAN                               = 0x14
@@ -2003,6 +2010,7 @@ const (
 	PTRACE_GETREGSET                            = 0x4204
 	PTRACE_GETSIGINFO                           = 0x4202
 	PTRACE_GETSIGMASK                           = 0x420a
+	PTRACE_GET_RSEQ_CONFIGURATION               = 0x420f
 	PTRACE_GET_SYSCALL_INFO                     = 0x420e
 	PTRACE_INTERRUPT                            = 0x4207
 	PTRACE_KILL                                 = 0x8
@@ -2163,6 +2171,7 @@ const (
 	RTM_DELNEIGH                                = 0x1d
 	RTM_DELNETCONF                              = 0x51
 	RTM_DELNEXTHOP                              = 0x69
+	RTM_DELNEXTHOPBUCKET                        = 0x75
 	RTM_DELNSID                                 = 0x59
 	RTM_DELQDISC                                = 0x25
 	RTM_DELROUTE                                = 0x19
@@ -2193,6 +2202,7 @@ const (
 	RTM_GETNEIGHTBL                             = 0x42
 	RTM_GETNETCONF                              = 0x52
 	RTM_GETNEXTHOP                              = 0x6a
+	RTM_GETNEXTHOPBUCKET                        = 0x76
 	RTM_GETNSID                                 = 0x5a
 	RTM_GETQDISC                                = 0x26
 	RTM_GETROUTE                                = 0x1a
@@ -2201,7 +2211,7 @@ const (
 	RTM_GETTCLASS                               = 0x2a
 	RTM_GETTFILTER                              = 0x2e
 	RTM_GETVLAN                                 = 0x72
-	RTM_MAX                                     = 0x73
+	RTM_MAX                                     = 0x77
 	RTM_NEWACTION                               = 0x30
 	RTM_NEWADDR                                 = 0x14
 	RTM_NEWADDRLABEL                            = 0x48
@@ -2215,6 +2225,7 @@ const (
 	RTM_NEWNEIGHTBL                             = 0x40
 	RTM_NEWNETCONF                              = 0x50
 	RTM_NEWNEXTHOP                              = 0x68
+	RTM_NEWNEXTHOPBUCKET                        = 0x74
 	RTM_NEWNSID                                 = 0x58
 	RTM_NEWNVLAN                                = 0x70
 	RTM_NEWPREFIX                               = 0x34
@@ -2224,8 +2235,8 @@ const (
 	RTM_NEWSTATS                                = 0x5c
 	RTM_NEWTCLASS                               = 0x28
 	RTM_NEWTFILTER                              = 0x2c
-	RTM_NR_FAMILIES                             = 0x19
+	RTM_NR_FAMILIES                             = 0x1a
-	RTM_NR_MSGTYPES                             = 0x64
+	RTM_NR_MSGTYPES                             = 0x68
 	RTM_SETDCB                                  = 0x4f
 	RTM_SETLINK                                 = 0x13
 	RTM_SETNEIGHTBL                             = 0x43
@@ -2253,6 +2264,7 @@ const (
 	RTPROT_MROUTED                              = 0x11
 	RTPROT_MRT                                  = 0xa
 	RTPROT_NTK                                  = 0xf
+	RTPROT_OPENR                                = 0x63
 	RTPROT_OSPF                                 = 0xbc
 	RTPROT_RA                                   = 0x9
 	RTPROT_REDIRECT                             = 0x1
@@ -2536,6 +2548,14 @@ const (
 	TCOFLUSH                                    = 0x1
 	TCOOFF                                      = 0x0
 	TCOON                                       = 0x1
+	TCPOPT_EOL                                  = 0x0
+	TCPOPT_MAXSEG                               = 0x2
+	TCPOPT_NOP                                  = 0x1
+	TCPOPT_SACK                                 = 0x5
+	TCPOPT_SACK_PERMITTED                       = 0x4
+	TCPOPT_TIMESTAMP                            = 0x8
+	TCPOPT_TSTAMP_HDR                           = 0x101080a
+	TCPOPT_WINDOW                               = 0x3
 	TCP_CC_INFO                                 = 0x1a
 	TCP_CM_INQ                                  = 0x24
 	TCP_CONGESTION                              = 0xd

vendor/golang.org/x/sys/unix/zerrors_linux_386.go

@@ -147,6 +147,7 @@ const (
 	NS_GET_USERNS                    = 0xb701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x400c4d19
 	OTPGETREGIONCOUNT                = 0x40044d0e
 	OTPGETREGIONINFO                 = 0x400c4d0f
 	OTPLOCK                          = 0x800c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_amd64.go

@@ -147,6 +147,7 @@ const (
 	NS_GET_USERNS                    = 0xb701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x400c4d19
 	OTPGETREGIONCOUNT                = 0x40044d0e
 	OTPGETREGIONINFO                 = 0x400c4d0f
 	OTPLOCK                          = 0x800c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_arm.go

@@ -145,6 +145,7 @@ const (
 	NS_GET_USERNS                    = 0xb701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x400c4d19
 	OTPGETREGIONCOUNT                = 0x40044d0e
 	OTPGETREGIONINFO                 = 0x400c4d0f
 	OTPLOCK                          = 0x800c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_arm64.go

@@ -148,6 +148,7 @@ const (
 	NS_GET_USERNS                    = 0xb701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x400c4d19
 	OTPGETREGIONCOUNT                = 0x40044d0e
 	OTPGETREGIONINFO                 = 0x400c4d0f
 	OTPLOCK                          = 0x800c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_mips.go

@@ -145,6 +145,7 @@ const (
 	NS_GET_USERNS                    = 0x2000b701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x800c4d19
 	OTPGETREGIONCOUNT                = 0x80044d0e
 	OTPGETREGIONINFO                 = 0x800c4d0f
 	OTPLOCK                          = 0x400c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_mips64.go

@@ -145,6 +145,7 @@ const (
 	NS_GET_USERNS                    = 0x2000b701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x800c4d19
 	OTPGETREGIONCOUNT                = 0x80044d0e
 	OTPGETREGIONINFO                 = 0x800c4d0f
 	OTPLOCK                          = 0x400c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_mips64le.go

@@ -145,6 +145,7 @@ const (
 	NS_GET_USERNS                    = 0x2000b701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x800c4d19
 	OTPGETREGIONCOUNT                = 0x80044d0e
 	OTPGETREGIONINFO                 = 0x800c4d0f
 	OTPLOCK                          = 0x400c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_mipsle.go

@@ -145,6 +145,7 @@ const (
 	NS_GET_USERNS                    = 0x2000b701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x800c4d19
 	OTPGETREGIONCOUNT                = 0x80044d0e
 	OTPGETREGIONINFO                 = 0x800c4d0f
 	OTPLOCK                          = 0x400c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_ppc.go

@@ -147,6 +147,7 @@ const (
 	NS_GET_USERNS                    = 0x2000b701
 	OLCUC                            = 0x4
 	ONLCR                            = 0x2
+	OTPERASE                         = 0x800c4d19
 	OTPGETREGIONCOUNT                = 0x80044d0e
 	OTPGETREGIONINFO                 = 0x800c4d0f
 	OTPLOCK                          = 0x400c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go

@@ -147,6 +147,7 @@ const (
 	NS_GET_USERNS                    = 0x2000b701
 	OLCUC                            = 0x4
 	ONLCR                            = 0x2
+	OTPERASE                         = 0x800c4d19
 	OTPGETREGIONCOUNT                = 0x80044d0e
 	OTPGETREGIONINFO                 = 0x800c4d0f
 	OTPLOCK                          = 0x400c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_ppc64le.go

@@ -147,6 +147,7 @@ const (
 	NS_GET_USERNS                    = 0x2000b701
 	OLCUC                            = 0x4
 	ONLCR                            = 0x2
+	OTPERASE                         = 0x800c4d19
 	OTPGETREGIONCOUNT                = 0x80044d0e
 	OTPGETREGIONINFO                 = 0x800c4d0f
 	OTPLOCK                          = 0x400c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_riscv64.go

@@ -145,6 +145,7 @@ const (
 	NS_GET_USERNS                    = 0xb701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x400c4d19
 	OTPGETREGIONCOUNT                = 0x40044d0e
 	OTPGETREGIONINFO                 = 0x400c4d0f
 	OTPLOCK                          = 0x800c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_s390x.go

@@ -145,6 +145,7 @@ const (
 	NS_GET_USERNS                    = 0xb701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x400c4d19
 	OTPGETREGIONCOUNT                = 0x40044d0e
 	OTPGETREGIONINFO                 = 0x400c4d0f
 	OTPLOCK                          = 0x800c4d10

vendor/golang.org/x/sys/unix/zerrors_linux_sparc64.go

@@ -150,6 +150,7 @@ const (
 	NS_GET_USERNS                    = 0x2000b701
 	OLCUC                            = 0x2
 	ONLCR                            = 0x4
+	OTPERASE                         = 0x800c4d19
 	OTPGETREGIONCOUNT                = 0x80044d0e
 	OTPGETREGIONINFO                 = 0x800c4d0f
 	OTPLOCK                          = 0x400c4d10

vendor/golang.org/x/sys/unix/zerrors_openbsd_386.go

@@ -1020,7 +1020,10 @@ const (
 	RLIMIT_CPU                        = 0x0
 	RLIMIT_DATA                       = 0x2
 	RLIMIT_FSIZE                      = 0x1
+	RLIMIT_MEMLOCK                    = 0x6
 	RLIMIT_NOFILE                     = 0x8
+	RLIMIT_NPROC                      = 0x7
+	RLIMIT_RSS                        = 0x5
 	RLIMIT_STACK                      = 0x3
 	RLIM_INFINITY                     = 0x7fffffffffffffff
 	RTAX_AUTHOR                       = 0x6

vendor/golang.org/x/sys/unix/zerrors_openbsd_arm.go

@@ -1020,7 +1020,10 @@ const (
 	RLIMIT_CPU                        = 0x0
 	RLIMIT_DATA                       = 0x2
 	RLIMIT_FSIZE                      = 0x1
+	RLIMIT_MEMLOCK                    = 0x6
 	RLIMIT_NOFILE                     = 0x8
+	RLIMIT_NPROC                      = 0x7
+	RLIMIT_RSS                        = 0x5
 	RLIMIT_STACK                      = 0x3
 	RLIM_INFINITY                     = 0x7fffffffffffffff
 	RTAX_AUTHOR                       = 0x6

vendor/golang.org/x/sys/unix/zsyscall_linux.go

@@ -48,6 +48,16 @@ func ioctl(fd int, req uint, arg uintptr) (err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func ioctlPtr(fd int, req uint, arg unsafe.Pointer) (err error) {
+	_, _, e1 := Syscall(SYS_IOCTL, uintptr(fd), uintptr(req), uintptr(arg))
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Linkat(olddirfd int, oldpath string, newdirfd int, newpath string, flags int) (err error) {
 	var _p0 *byte
 	_p0, err = BytePtrFromString(oldpath)
@@ -1201,7 +1211,7 @@ func PivotRoot(newroot string, putold string) (err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func prlimit(pid int, resource int, newlimit *Rlimit, old *Rlimit) (err error) {
+func Prlimit(pid int, resource int, newlimit *Rlimit, old *Rlimit) (err error) {
 	_, _, e1 := RawSyscall6(SYS_PRLIMIT64, uintptr(pid), uintptr(resource), uintptr(unsafe.Pointer(newlimit)), uintptr(unsafe.Pointer(old)), 0, 0)
 	if e1 != 0 {
 		err = errnoErr(e1)

vendor/golang.org/x/sys/unix/zsyscall_solaris_amd64.go

@@ -141,6 +141,11 @@ import (
 //go:cgo_import_dynamic libc_getpeername getpeername "libsocket.so"
 //go:cgo_import_dynamic libc_setsockopt setsockopt "libsocket.so"
 //go:cgo_import_dynamic libc_recvfrom recvfrom "libsocket.so"
+//go:cgo_import_dynamic libc_port_create port_create "libc.so"
+//go:cgo_import_dynamic libc_port_associate port_associate "libc.so"
+//go:cgo_import_dynamic libc_port_dissociate port_dissociate "libc.so"
+//go:cgo_import_dynamic libc_port_get port_get "libc.so"
+//go:cgo_import_dynamic libc_port_getn port_getn "libc.so"
 
 //go:linkname procpipe libc_pipe
 //go:linkname procpipe2 libc_pipe2
@@ -272,6 +277,11 @@ import (
 //go:linkname procgetpeername libc_getpeername
 //go:linkname procsetsockopt libc_setsockopt
 //go:linkname procrecvfrom libc_recvfrom
+//go:linkname procport_create libc_port_create
+//go:linkname procport_associate libc_port_associate
+//go:linkname procport_dissociate libc_port_dissociate
+//go:linkname procport_get libc_port_get
+//go:linkname procport_getn libc_port_getn
 
 var (
 	procpipe,
@@ -403,7 +413,12 @@ var (
 	proc__xnet_getsockopt,
 	procgetpeername,
 	procsetsockopt,
-	procrecvfrom syscallFunc
+	procrecvfrom,
+	procport_create,
+	procport_associate,
+	procport_dissociate,
+	procport_get,
+	procport_getn syscallFunc
 )
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
@@ -1981,3 +1996,58 @@ func recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Sockl
 	}
 	return
 }
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func port_create() (n int, err error) {
+	r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procport_create)), 0, 0, 0, 0, 0, 0, 0)
+	n = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func port_associate(port int, source int, object uintptr, events int, user *byte) (n int, err error) {
+	r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procport_associate)), 5, uintptr(port), uintptr(source), uintptr(object), uintptr(events), uintptr(unsafe.Pointer(user)), 0)
+	n = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func port_dissociate(port int, source int, object uintptr) (n int, err error) {
+	r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procport_dissociate)), 3, uintptr(port), uintptr(source), uintptr(object), 0, 0, 0)
+	n = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func port_get(port int, pe *portEvent, timeout *Timespec) (n int, err error) {
+	r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procport_get)), 3, uintptr(port), uintptr(unsafe.Pointer(pe)), uintptr(unsafe.Pointer(timeout)), 0, 0, 0)
+	n = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
+func port_getn(port int, pe *portEvent, max uint32, nget *uint32, timeout *Timespec) (n int, err error) {
+	r0, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procport_getn)), 5, uintptr(port), uintptr(unsafe.Pointer(pe)), uintptr(max), uintptr(unsafe.Pointer(nget)), uintptr(unsafe.Pointer(timeout)), 0)
+	n = int(r0)
+	if e1 != 0 {
+		err = e1
+	}
+	return
+}

vendor/golang.org/x/sys/unix/zsysnum_linux_386.go

@@ -439,4 +439,7 @@ const (
 	SYS_PROCESS_MADVISE              = 440
 	SYS_EPOLL_PWAIT2                 = 441
 	SYS_MOUNT_SETATTR                = 442
+	SYS_LANDLOCK_CREATE_RULESET      = 444
+	SYS_LANDLOCK_ADD_RULE            = 445
+	SYS_LANDLOCK_RESTRICT_SELF       = 446
 )

vendor/golang.org/x/sys/unix/zsysnum_linux_amd64.go

@@ -361,4 +361,7 @@ const (
 	SYS_PROCESS_MADVISE         = 440
 	SYS_EPOLL_PWAIT2            = 441
 	SYS_MOUNT_SETATTR           = 442
+	SYS_LANDLOCK_CREATE_RULESET = 444
+	SYS_LANDLOCK_ADD_RULE       = 445
+	SYS_LANDLOCK_RESTRICT_SELF  = 446
 )