GoToSocial/internal/db/timeline.go
kim 5f3e095717
[performance] retry db queries on busy errors (#2025)
* catch SQLITE_BUSY errors, wrap bun.DB to use our own busy retrier, remove unnecessary db.Error type

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

* remove dead code

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

* remove more dead code, add missing error arguments

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

* update sqlite to use maxOpenConns()

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

* add uncommitted changes

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

* use direct calls-through for the ConnIface to make sure we don't double query hook

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

* expose underlying bun.DB better

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

* retry on the correct busy error

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

* use longer possible maxRetries for db retry-backoff

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

* remove the note regarding max-open-conns only applying to postgres

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

* improved code commenting

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

* remove unnecessary infof call (just use info)

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

* rename DBConn to WrappedDB to better follow sql package name conventions

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

* update test error string checks

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

* shush linter

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

* update backoff logic to be more transparent

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

---------

Signed-off-by: kim <grufwub@gmail.com>
2023-07-25 10:34:05 +02:00

52 lines
2.8 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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 db
import (
"context"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)
// Timeline contains functionality for retrieving home/public/faved etc timelines for an account.
type Timeline interface {
// GetHomeTimeline returns a slice of statuses from accounts that are followed by the given account id.
//
// Statuses should be returned in descending order of when they were created (newest first).
GetHomeTimeline(ctx context.Context, accountID string, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, error)
// GetPublicTimeline fetches the account's PUBLIC timeline -- ie., posts and replies that are public.
// It will use the given filters and try to return as many statuses as possible up to the limit.
//
// Statuses should be returned in descending order of when they were created (newest first).
GetPublicTimeline(ctx context.Context, maxID string, sinceID string, minID string, limit int, local bool) ([]*gtsmodel.Status, error)
// GetFavedTimeline fetches the account's FAVED timeline -- ie., posts and replies that the requesting account has faved.
// It will use the given filters and try to return as many statuses as possible up to the limit.
//
// Note that unlike the other GetTimeline functions, the returned statuses will be arranged by their FAVE id, not the STATUS id.
// In other words, they'll be returned in descending order of when they were faved by the requesting user, not when they were created.
//
// Also note the extra return values, which correspond to the nextMaxID and prevMinID for building Link headers.
GetFavedTimeline(ctx context.Context, accountID string, maxID string, minID string, limit int) ([]*gtsmodel.Status, string, string, error)
// GetListTimeline returns a slice of statuses from followed accounts collected within the list with the given listID.
// Statuses should be returned in descending order of when they were created (newest first).
GetListTimeline(ctx context.Context, listID string, maxID string, sinceID string, minID string, limit int) ([]*gtsmodel.Status, error)
}