dendrite/relayapi/storage/tables/interface.go
kegsay 72285b2659
refactor: update GMSL (#3058)
Sister PR to https://github.com/matrix-org/gomatrixserverlib/pull/364

Read this commit by commit to avoid going insane.
2023-04-19 15:50:33 +01:00

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// Copyright 2022 The Matrix.org Foundation C.I.C.
//
// 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 tables
import (
"context"
"database/sql"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/gomatrixserverlib/spec"
)
// RelayQueue table contains a mapping of server name to transaction id and the corresponding nid.
// These are the transactions being stored for the given destination server.
// The nids correspond to entries in the RelayQueueJSON table.
type RelayQueue interface {
// Adds a new transaction_id: server_name mapping with associated json table nid to the table.
// Will ensure only one transaction id is present for each server_name: nid mapping.
// Adding duplicates will silently do nothing.
InsertQueueEntry(ctx context.Context, txn *sql.Tx, transactionID gomatrixserverlib.TransactionID, serverName spec.ServerName, nid int64) error
// Removes multiple entries from the table corresponding the the list of nids provided.
// If any of the provided nids don't match a row in the table, that deletion is considered
// successful.
DeleteQueueEntries(ctx context.Context, txn *sql.Tx, serverName spec.ServerName, jsonNIDs []int64) error
// Get a list of nids associated with the provided server name.
// Returns up to `limit` nids. The entries are returned oldest first.
// Will return an empty list if no matches were found.
SelectQueueEntries(ctx context.Context, txn *sql.Tx, serverName spec.ServerName, limit int) ([]int64, error)
// Get the number of entries in the table associated with the provided server name.
// If there are no matching rows, a count of 0 is returned with err set to nil.
SelectQueueEntryCount(ctx context.Context, txn *sql.Tx, serverName spec.ServerName) (int64, error)
}
// RelayQueueJSON table contains a map of nid to the raw transaction json.
type RelayQueueJSON interface {
// Adds a new transaction to the table.
// Adding a duplicate transaction will result in a new row being added and a new unique nid.
// return: unique nid representing this entry.
InsertQueueJSON(ctx context.Context, txn *sql.Tx, json string) (int64, error)
// Removes multiple nids from the table.
// If any of the provided nids don't match a row in the table, that deletion is considered
// successful.
DeleteQueueJSON(ctx context.Context, txn *sql.Tx, nids []int64) error
// Get the transaction json corresponding to the provided nids.
// Will return a partial result containing any matching nid from the table.
// Will return an empty map if no matches were found.
// It is the caller's responsibility to deal with the results appropriately.
// return: map indexed by nid of each matching transaction json.
SelectQueueJSON(ctx context.Context, txn *sql.Tx, jsonNIDs []int64) (map[int64][]byte, error)
}