The regions package

[Tags:bsd3, library]

This package provides the region monad transformer. Scarce resources like files, memory pointers or USB devices for example can be opened in a region. When the region terminates, all opened resources will be automatically closed. The main advantage of regions is that the opened resources can not be returned from the region which ensures no I/O with closed resources is possible.

The primary technique used in this package is called "Lightweight monadic regions" which was invented by Oleg Kiselyov and Chung-chieh Shan. See:

http://okmij.org/ftp/Haskell/regions.html#light-weight

This package provides two modules:

Also see the regions-monadsfd and regions-monadstf packages which provide instances for the classes in the respected monads packages.

For an example of how to use this library see the usb-safe package.

Properties

Versions 0.1, 0.1.0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.6.0.1, 0.7, 0.7.0.1, 0.8, 0.8.1, 0.9, 0.10, 0.11
Dependencies base (>=4 && <4.2), MonadCatchIO-transformers (==0.0.2.*), transformers (>=0.1.4 && <0.2), unicode-symbols (==0.1.*) [details]
License BSD3
Copyright 2009 Bas van Dijk
Author Bas van Dijk
Maintainer Bas van Dijk <v.dijk.bas@gmail.com>
Stability experimental
Category Control
Source repository head: darcs get http://code.haskell.org/~basvandijk/code/regions
Uploaded Mon Dec 21 09:46:51 UTC 2009 by BasVanDijk
Distributions NixOS:0.11
Downloads 2954 total (28 in the last 30 days)
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Status Docs uploaded by user
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