mirror of
https://github.com/matrix-org/dendrite.git
synced 2025-12-17 03:43:11 -06:00
81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
// Copyright 2017 Vector Creations Ltd
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package storage
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"time"
|
|
|
|
"github.com/matrix-org/dendrite/common"
|
|
)
|
|
|
|
const reservedRoomSchema = `
|
|
-- The events table holds metadata for each event, the actual JSON is stored
|
|
-- separately to keep the size of the rows small.
|
|
CREATE SEQUENCE IF NOT EXISTS roomserver_event_nid_seq;
|
|
CREATE TABLE IF NOT EXISTS roomserver_reserved_room_ids (
|
|
--- The Room ID ---
|
|
room_id TEXT PRIMARY KEY,
|
|
reserved_since TIMESTAMP NOT NULL
|
|
);
|
|
`
|
|
|
|
const reserveRoomIDSQL = "" +
|
|
"INSERT INTO roomserver_reserved_room_ids (room_id, reserved_since) select $1, $2"
|
|
//"WHERE NOT EXISTS (SELECT 1 FROM roomserver_rooms WHERE room_id = $1)"
|
|
|
|
const selectReservedRoomIDSQL = "" +
|
|
"SELECT reserved_since FROM roomserver_reserved_room_ids WHERE room_id = $1"
|
|
|
|
type reservedRoomStatements struct {
|
|
reserveRoomIDStmt *sql.Stmt
|
|
selectReservedRoomIDStmt *sql.Stmt
|
|
}
|
|
|
|
func (s *reservedRoomStatements) prepare(db *sql.DB) (err error) {
|
|
_, err = db.Exec(reservedRoomSchema)
|
|
if err != nil {
|
|
return
|
|
}
|
|
|
|
return statementList{
|
|
{&s.reserveRoomIDStmt, reserveRoomIDSQL},
|
|
{&s.selectReservedRoomIDStmt, selectReservedRoomIDSQL},
|
|
}.prepare(db)
|
|
}
|
|
|
|
func (s *reservedRoomStatements) reserveRoomID(
|
|
ctx context.Context,
|
|
roomID string,
|
|
reservedSince time.Time,
|
|
) (success bool, err error) {
|
|
_, err = s.reserveRoomIDStmt.ExecContext(ctx, roomID, reservedSince)
|
|
|
|
if common.IsUniqueConstraintViolationErr(err) {
|
|
return false, nil
|
|
}
|
|
|
|
return err == nil, err
|
|
}
|
|
|
|
func (s *reservedRoomStatements) selectReservedRoomID(
|
|
ctx context.Context, roomID string,
|
|
) (time.Time, error) {
|
|
var reservedSince time.Time
|
|
err := s.selectReservedRoomIDStmt.QueryRowContext(ctx, roomID).Scan(&reservedSince)
|
|
return reservedSince, err
|
|
}
|