forked from mirrors/gotosocial
82 lines
2.6 KiB
Go
82 lines
2.6 KiB
Go
/*
|
|
GoToSocial
|
|
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package federatingdb
|
|
|
|
import (
|
|
"context"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/superseriousbusiness/activity/pub"
|
|
"github.com/superseriousbusiness/activity/streams/vocab"
|
|
"github.com/superseriousbusiness/gotosocial/internal/config"
|
|
"github.com/superseriousbusiness/gotosocial/internal/db"
|
|
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
|
|
)
|
|
|
|
// DB wraps the pub.Database interface with a couple of custom functions for GoToSocial.
|
|
type DB interface {
|
|
pub.Database
|
|
Undo(ctx context.Context, undo vocab.ActivityStreamsUndo) error
|
|
Accept(ctx context.Context, accept vocab.ActivityStreamsAccept) error
|
|
Reject(ctx context.Context, reject vocab.ActivityStreamsReject) error
|
|
Announce(ctx context.Context, announce vocab.ActivityStreamsAnnounce) error
|
|
}
|
|
|
|
// FederatingDB uses the underlying DB interface to implement the go-fed pub.Database interface.
|
|
// It doesn't care what the underlying implementation of the DB interface is, as long as it works.
|
|
type federatingDB struct {
|
|
mutex sync.Mutex
|
|
locks map[string]*mutex
|
|
pool sync.Pool
|
|
db db.DB
|
|
config *config.Config
|
|
typeConverter typeutils.TypeConverter
|
|
}
|
|
|
|
// New returns a DB interface using the given database and config
|
|
func New(db db.DB, config *config.Config) DB {
|
|
fdb := federatingDB{
|
|
mutex: sync.Mutex{},
|
|
locks: make(map[string]*mutex, 100),
|
|
pool: sync.Pool{New: func() interface{} { return &mutex{} }},
|
|
db: db,
|
|
config: config,
|
|
typeConverter: typeutils.NewConverter(config, db),
|
|
}
|
|
go fdb.cleanupLocks()
|
|
return &fdb
|
|
}
|
|
|
|
func (db *federatingDB) cleanupLocks() {
|
|
for {
|
|
// Sleep for a minute...
|
|
time.Sleep(time.Minute)
|
|
|
|
// Delete unused locks from map
|
|
db.mutex.Lock()
|
|
for id, mu := range db.locks {
|
|
if !mu.inUse() {
|
|
delete(db.locks, id)
|
|
db.pool.Put(mu)
|
|
}
|
|
}
|
|
db.mutex.Unlock()
|
|
}
|
|
}
|