gotosocial/internal/federation/federatingdb/db.go
kim cc5f2e98b7
[bugfix] Fix possible race condition in federatingdb (#490)
Signed-off-by: kim <grufwub@gmail.com>
2022-04-28 11:18:27 +02:00

57 lines
2 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2022 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"
"codeberg.org/gruf/go-mutexes"
"github.com/superseriousbusiness/activity/pub"
"github.com/superseriousbusiness/activity/streams/vocab"
"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 {
locks mutexes.MutexMap
db db.DB
typeConverter typeutils.TypeConverter
}
// New returns a DB interface using the given database and config
func New(db db.DB) DB {
fdb := federatingDB{
locks: mutexes.NewMap(-1, -1), // use defaults
db: db,
typeConverter: typeutils.NewConverter(db),
}
return &fdb
}