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

Versions0.1, 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
Dependenciesbase (>=4 && <4.3), base-unicode-symbols (>=0.1.1 && <0.2), MonadCatchIO-transformers (==0.0.2.*), transformers (>=0.1.4 && <0.2)
LicenseBSD3
Copyright2009 Bas van Dijk
AuthorBas van Dijk
MaintainerBas van Dijk <v.dijk.bas@gmail.com>
Stabilityexperimental
CategoryControl, Monadic Regions
Source repositoryhead: darcs get http://code.haskell.org/~basvandijk/code/regions
Upload dateWed Dec 23 13:42:48 UTC 2009
Uploaded byBasVanDijk
Downloads870 total (66 in last 30 days)

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