Copyright	Copyright (C) 2006 John Goerzen
License	BSD3
Maintainer	John Goerzen <jgoerzen@complete.org>
Stability	provisional
Portability	portable
Safe Haskell	Safe-Inferred
Language	Haskell2010

Database.HDBC.DriverUtils

Description

Utilities for database backend drivers.

Please note: this module is intended for authors of database driver libraries only. Authors of applications using HDBC should use HDBC exclusively.

Written by John Goerzen, jgoerzen@complete.org

Synopsis

type ChildList = MVar [Weak Statement]
closeAllChildren :: ChildList -> IO ()
addChild :: ChildList -> Statement -> IO ()

Documentation

type ChildList = MVar [Weak Statement] Source #

closeAllChildren :: ChildList -> IO () Source #

Close all children. Intended to be called by the disconnect function in Connection.

There may be a potential race condition wherein a call to newSth at the same time as a call to this function may result in the new child not being closed.

addChild :: ChildList -> Statement -> IO () Source #

Adds a new child to the existing list. Also takes care of registering a finalizer for it, to remove it from the list when possible.