Trac

Package trac :: Package db :: Module pool

Module pool

Classes

TimeoutError
Exception raised by the connection pool when no connection has become available after a given timeout.

PooledConnection
A database connection that can be pooled.

ConnectionPoolBackend
A process-wide LRU-based connection pool.

Functions

try_rollback(cnx)
Resets the Connection in a safe way, returning True when it succeeds. source code

Variables

__package__ = 'trac.db'

Imports: os, time, TracError, ConnectionWrapper, threading, exception_to_unicode, _

Function Details

Resets the Connection in a safe way, returning True when it succeeds.

The rollback we do for safety on a Connection can fail at critical times because of a timeout on the Connection.

Trac