mirror of
https://mau.dev/maunium/synapse.git
synced 2024-07-08 12:12:16 +00:00
d5fb561709
Useful when running tests when you don't care whether the server will lose data that it claims that it has committed.
69 lines
2.0 KiB
Python
69 lines
2.0 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2015, 2016 OpenMarket 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.
|
|
|
|
from synapse.storage.prepare_database import prepare_database
|
|
|
|
import struct
|
|
|
|
|
|
class Sqlite3Engine(object):
|
|
single_threaded = True
|
|
|
|
def __init__(self, database_module, database_config):
|
|
self.module = database_module
|
|
|
|
def check_database(self, txn):
|
|
pass
|
|
|
|
def convert_param_style(self, sql):
|
|
return sql
|
|
|
|
def on_new_connection(self, db_conn):
|
|
prepare_database(db_conn, self, config=None)
|
|
db_conn.create_function("rank", 1, _rank)
|
|
|
|
def is_deadlock(self, error):
|
|
return False
|
|
|
|
def is_connection_closed(self, conn):
|
|
return False
|
|
|
|
def lock_table(self, txn, table):
|
|
return
|
|
|
|
|
|
# Following functions taken from: https://github.com/coleifer/peewee
|
|
|
|
def _parse_match_info(buf):
|
|
bufsize = len(buf)
|
|
return [struct.unpack('@I', buf[i:i + 4])[0] for i in range(0, bufsize, 4)]
|
|
|
|
|
|
def _rank(raw_match_info):
|
|
"""Handle match_info called w/default args 'pcx' - based on the example rank
|
|
function http://sqlite.org/fts3.html#appendix_a
|
|
"""
|
|
match_info = _parse_match_info(raw_match_info)
|
|
score = 0.0
|
|
p, c = match_info[:2]
|
|
for phrase_num in range(p):
|
|
phrase_info_idx = 2 + (phrase_num * c * 3)
|
|
for col_num in range(c):
|
|
col_idx = phrase_info_idx + (col_num * 3)
|
|
x1, x2 = match_info[col_idx:col_idx + 2]
|
|
if x1 > 0:
|
|
score += float(x1) / x2
|
|
return score
|