67 lines
3.2 KiB
Go
67 lines
3.2 KiB
Go
// Copyright 2022 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package tables
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import (
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"context"
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"database/sql"
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"github.com/matrix-org/gomatrixserverlib"
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)
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// RelayQueue table contains a mapping of server name to transaction id and the corresponding nid.
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// These are the transactions being stored for the given destination server.
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// The nids correspond to entries in the RelayQueueJSON table.
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type RelayQueue interface {
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// Adds a new transaction_id: server_name mapping with associated json table nid to the table.
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// Will ensure only one transaction id is present for each server_name: nid mapping.
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// Adding duplicates will silently do nothing.
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InsertQueueEntry(ctx context.Context, txn *sql.Tx, transactionID gomatrixserverlib.TransactionID, serverName gomatrixserverlib.ServerName, nid int64) error
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// Removes multiple entries from the table corresponding the the list of nids provided.
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// If any of the provided nids don't match a row in the table, that deletion is considered
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// successful.
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DeleteQueueEntries(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName, jsonNIDs []int64) error
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// Get a list of nids associated with the provided server name.
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// Returns up to `limit` nids. The entries are returned oldest first.
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// Will return an empty list if no matches were found.
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SelectQueueEntries(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName, limit int) ([]int64, error)
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// Get the number of entries in the table associated with the provided server name.
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// If there are no matching rows, a count of 0 is returned with err set to nil.
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SelectQueueEntryCount(ctx context.Context, txn *sql.Tx, serverName gomatrixserverlib.ServerName) (int64, error)
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}
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// RelayQueueJSON table contains a map of nid to the raw transaction json.
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type RelayQueueJSON interface {
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// Adds a new transaction to the table.
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// Adding a duplicate transaction will result in a new row being added and a new unique nid.
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// return: unique nid representing this entry.
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InsertQueueJSON(ctx context.Context, txn *sql.Tx, json string) (int64, error)
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// Removes multiple nids from the table.
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// If any of the provided nids don't match a row in the table, that deletion is considered
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// successful.
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DeleteQueueJSON(ctx context.Context, txn *sql.Tx, nids []int64) error
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// Get the transaction json corresponding to the provided nids.
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// Will return a partial result containing any matching nid from the table.
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// Will return an empty map if no matches were found.
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// It is the caller's responsibility to deal with the results appropriately.
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// return: map indexed by nid of each matching transaction json.
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SelectQueueJSON(ctx context.Context, txn *sql.Tx, jsonNIDs []int64) (map[int64][]byte, error)
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}
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