Esempio n. 1
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 def enqueue(self, method, args):
     with log_yield(measure="queue.enqueue"):
         args = json.dumps(args)
         with self.conn_adapter.connection.cursor(cursor_factory=LoggingCursor) as curs:
             curs.execute(
                 'INSERT INTO "queue_classic_jobs" (q_name, method, args) ' "VALUES (%s, %s, %s) RETURNING id",
                 [self.name, method, args],
             )
             return curs.fetchone()[0]
Esempio n. 2
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 def lock(self, top_bound=None):
     with log_yield(measure="queue.lock"):
         if top_bound is None:
             top_bound = self.top_bound
         with self.conn_adapter.connection.cursor(cursor_factory=LoggingRealDictCursor) as curs:
             curs.execute("SELECT * FROM lock_head(%s, %s)", [self.name, top_bound])
             if not curs.rowcount:
                 return None
             job = curs.fetchone()
         # NOTE: JSON in args is parsed automatically
         #       timestamptz columns are converted automatically to datetime
         if job["created_at"]:
             now = datetime.datetime.now(job["created_at"].tzinfo)
             ttl = now - job["created_at"]
             _logger.info("measure#qc.time-to-lock=%sms source=%s" % (int(ttl.microseconds / 1000), self.name))
         return job
Esempio n. 3
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 def count(self):
     with log_yield(measure="queue.count"):
         with self.conn_adapter.connection.cursor(cursor_factory=psycopg2.extensions.cursor) as curs:
             curs.execute('SELECT COUNT(*) FROM "queue_classic_jobs" ' "WHERE q_name = %s", [self.name])
             return curs.fetchone()[0]
Esempio n. 4
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 def delete_all(self):
     with log_yield(measure="queue.delete_all"):
         return self.conn_adapter.execute('DELETE FROM "queue_classic_jobs" WHERE q_name = %s', [self.name])
Esempio n. 5
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 def delete(self, id):
     with log_yield(measure="queue.delete"):
         return self.conn_adapter.execute('DELETE FROM "queue_classic_jobs" WHERE id = %s', [id])
Esempio n. 6
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 def unlock(self, id):
     with log_yield(measure="queue.unlock"):
         return self.conn_adapter.execute('UPDATE "queue_classic_jobs" ' "SET locked_at = NULL WHERE id = %s", [id])