atomic-primops: A safe approach to CAS and other atomic ops in Haskell.

[ bsd3, data, library ] [ Propose Tags ]

After GHC 7.4 a new casMutVar# primop became available, but it's difficult to use safely, because pointer equality is a highly unstable property in Haskell. This library provides a safer method based on the concept of Tickets.

Also, this library uses the "foreign primop" capability of GHC to add access to other variants that may be of interest, specifically, compare and swap inside an array.

Note that as of GHC 7.8, the relevant primops have been included in GHC itself. This library is engineered to work pre- and post-GHC-7.8, while exposing the same interface.

Changes in 0.3:

Changes in 0.4:

Changes in 0.5:

Changes in 0.5.0.2:

Changes in 0.6.1

Changes in 0.7:

Versions 0.1.0.0, 0.1.0.2, 0.2.2, 0.2.2.1, 0.3, 0.4, 0.5, 0.5.0.2, 0.6, 0.6.0.5, 0.6.0.6, 0.6.1, 0.6.1.1, 0.7, 0.8, 0.8.0.2, 0.8.0.3, 0.8.0.4, 0.8.1, 0.8.1.1, 0.8.2 (info)
Dependencies base (>=4.6.0.0 && <4.9), ghc-prim, primitive [details]
License BSD-3-Clause
Author Ryan Newton
Maintainer rrnewton@gmail.com
Revised Revision 1 made by RyanNewton at Fri Jan 16 03:45:12 UTC 2015
Category Data
Home page https://github.com/rrnewton/haskell-lockfree/wiki
Bug tracker https://github.com/rrnewton/haskell-lockfree/issues
Source repo head: git clone https://github.com/rrnewton/haskell-lockfree/(atomic-primops)
Uploaded by RyanNewton at Fri Jan 16 03:44:17 UTC 2015
Distributions FreeBSD:0.8, LTSHaskell:0.8.2, NixOS:0.8.2, Stackage:0.8.2
Downloads 14264 total (389 in the last 30 days)
Rating 2.0 (votes: 1) [estimated by rule of succession]
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Status Docs available [build log]
Last success reported on 2015-01-16 [all 1 reports]
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