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Install

Install this package:

emerge -a dev-haskell/atomic-primops

If the package is masked, you can unmask it using the autounmask tool or standard emerge options:

autounmask dev-haskell/atomic-primops

Or alternatively:

emerge --autounmask-write -a dev-haskell/atomic-primops

Package Information

Description:

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.

Homepage:

https://github.com/rrnewton/haskell-lockfree/wiki

License:

BSD

Versions

Metadata

Description

• 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.

Maintainers

• Gentoo Haskell (haskell@gentoo.org) - Type: project

Upstream

• Remote IDs:
  • github: rrnewton/haskell-lockfree

<pkgmetadata>
	<maintainer type="project">
		<email>haskell@gentoo.org</email>
		<name>Gentoo Haskell</name>
	</maintainer>
	<longdescription>
		After GHC 7.4 a new `casMutVar#` primop became available, but it&#39;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 &quot;Tickets&quot;.
		
		Also, this library uses the &quot;foreign primop&quot; 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.
	</longdescription>
	<use>
		<flag name="debug">Enable extra internal checks.</flag>
	</use>
	<upstream>
		<remote-id type="github">rrnewton/haskell-lockfree</remote-id>
	</upstream>
</pkgmetadata>

Lint Warnings

• [Error] Missing md5-cache for ebuild atomic-primops-0.8.4

USE Flags

Manage flags for this package: euse -i <flag> -p dev-haskell/atomic-primops | euse -E <flag> -p dev-haskell/atomic-primops | euse -D <flag> -p dev-haskell/atomic-primops

Manifest