forked from mirrors/gotosocial
a156188b3e
* update dependencies, bump Go version to 1.19 * bump test image Go version * update golangci-lint * update gotosocial-drone-build * sign * linting, go fmt * update swagger docs * update swagger docs * whitespace * update contributing.md * fuckin whoopsie doopsie * linterino, linteroni * fix followrequest test not starting processor * fix other api/client tests not starting processor * fix remaining tests where processor not started * bump go-runners version * don't check last-webfingered-at, processor may have updated this * update swagger command * update bun to latest version * fix embed to work the same as before with new bun Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>
52 lines
1.4 KiB
Go
52 lines
1.4 KiB
Go
// 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 (darwin && !ios) || linux
|
|
// +build darwin,!ios linux
|
|
|
|
package unix
|
|
|
|
import "unsafe"
|
|
|
|
// SysvShmAttach attaches the Sysv shared memory segment associated with the
|
|
// shared memory identifier id.
|
|
func SysvShmAttach(id int, addr uintptr, flag int) ([]byte, error) {
|
|
addr, errno := shmat(id, addr, flag)
|
|
if errno != nil {
|
|
return nil, errno
|
|
}
|
|
|
|
// Retrieve the size of the shared memory to enable slice creation
|
|
var info SysvShmDesc
|
|
|
|
_, err := SysvShmCtl(id, IPC_STAT, &info)
|
|
if err != nil {
|
|
// release the shared memory if we can't find the size
|
|
|
|
// ignoring error from shmdt as there's nothing sensible to return here
|
|
shmdt(addr)
|
|
return nil, err
|
|
}
|
|
|
|
// Use unsafe to convert addr into a []byte.
|
|
b := unsafe.Slice((*byte)(unsafe.Pointer(addr)), int(info.Segsz))
|
|
return b, nil
|
|
}
|
|
|
|
// SysvShmDetach unmaps the shared memory slice returned from SysvShmAttach.
|
|
//
|
|
// It is not safe to use the slice after calling this function.
|
|
func SysvShmDetach(data []byte) error {
|
|
if len(data) == 0 {
|
|
return EINVAL
|
|
}
|
|
|
|
return shmdt(uintptr(unsafe.Pointer(&data[0])))
|
|
}
|
|
|
|
// SysvShmGet returns the Sysv shared memory identifier associated with key.
|
|
// If the IPC_CREAT flag is specified a new segment is created.
|
|
func SysvShmGet(key, size, flag int) (id int, err error) {
|
|
return shmget(key, size, flag)
|
|
}
|