mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-23 10:42:12 +00:00
104 lines
3 KiB
Go
104 lines
3 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 bundb
|
|
|
|
import (
|
|
"database/sql/driver"
|
|
"errors"
|
|
|
|
"github.com/jackc/pgx/v5/pgconn"
|
|
"github.com/superseriousbusiness/gotosocial/internal/db"
|
|
"modernc.org/sqlite"
|
|
sqlite3 "modernc.org/sqlite/lib"
|
|
)
|
|
|
|
// errBusy is a sentinel error indicating
|
|
// busy database (e.g. retry needed).
|
|
var errBusy = errors.New("busy")
|
|
|
|
// processPostgresError processes an error, replacing any postgres specific errors with our own error type
|
|
func processPostgresError(err error) error {
|
|
// Catch nil errs.
|
|
if err == nil {
|
|
return nil
|
|
}
|
|
|
|
// 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 { //nolint
|
|
case "23505" /* unique_violation */ :
|
|
return db.ErrAlreadyExists
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
// processSQLiteError processes an error, replacing any sqlite specific errors with our own error type
|
|
func processSQLiteError(err error) error {
|
|
// Catch nil errs.
|
|
if err == nil {
|
|
return nil
|
|
}
|
|
|
|
// 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,
|
|
sqlite3.SQLITE_CONSTRAINT_PRIMARYKEY:
|
|
return db.ErrAlreadyExists
|
|
case sqlite3.SQLITE_BUSY:
|
|
return errBusy
|
|
case sqlite3.SQLITE_BUSY_TIMEOUT:
|
|
return db.ErrBusyTimeout
|
|
|
|
// WORKAROUND:
|
|
// text copied from matrix dev chat:
|
|
//
|
|
// okay i've found a workaround for now. so between
|
|
// v1.29.0 and v1.29.2 (modernc.org/sqlite) is that
|
|
// slightly tweaked interruptOnDone() behaviour, which
|
|
// causes interrupt to (imo, correctly) get called when
|
|
// a context is cancelled to cancel the running query. the
|
|
// issue is that every single query after that point seems
|
|
// to still then return interrupted. so as you thought,
|
|
// maybe that query count isn't being decremented. i don't
|
|
// think it's our code, but i haven't ruled it out yet.
|
|
//
|
|
// the workaround for now is adding to our sqlite error
|
|
// processor to replace an SQLITE_INTERRUPTED code with
|
|
// driver.ErrBadConn, which hints to the golang sql package
|
|
// that the conn needs to be closed and a new one opened
|
|
//
|
|
case sqlite3.SQLITE_INTERRUPT:
|
|
return driver.ErrBadConn
|
|
}
|
|
|
|
return err
|
|
}
|