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<pre><a name="line-1"></a><span class='hs-comment'>{- arch-tag: Thread utilities main file
<a name="line-2"></a>Copyright (C) 2004 John Goerzen <jgoerzen@complete.org>
<a name="line-3"></a>
<a name="line-4"></a>This program is free software; you can redistribute it and/or modify
<a name="line-5"></a>it under the terms of the GNU General Public License as published by
<a name="line-6"></a>the Free Software Foundation; either version 2 of the License, or
<a name="line-7"></a>(at your option) any later version.
<a name="line-8"></a>
<a name="line-9"></a>This program is distributed in the hope that it will be useful,
<a name="line-10"></a>but WITHOUT ANY WARRANTY; without even the implied warranty of
<a name="line-11"></a>MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
<a name="line-12"></a>GNU General Public License for more details.
<a name="line-13"></a>
<a name="line-14"></a>You should have received a copy of the GNU General Public License
<a name="line-15"></a>along with this program; if not, write to the Free Software
<a name="line-16"></a>Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
<a name="line-17"></a>-}</span>
<a name="line-18"></a>
<a name="line-19"></a><span class='hs-comment'>{- |
<a name="line-20"></a> Module : Control.Concurrent.Thread.Utils
<a name="line-21"></a> Copyright : Copyright (C) 2004 John Goerzen
<a name="line-22"></a> License : GNU GPL, version 2 or above
<a name="line-23"></a>
<a name="line-24"></a> Maintainer : John Goerzen <jgoerzen@complete.org>
<a name="line-25"></a> Stability : provisional
<a name="line-26"></a> Portability: portable
<a name="line-27"></a>
<a name="line-28"></a>This module provides various helpful utilities for dealing with threads.
<a name="line-29"></a>
<a name="line-30"></a>Written by John Goerzen, jgoerzen\@complete.org
<a name="line-31"></a>-}</span>
<a name="line-32"></a>
<a name="line-33"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Concurrent</span><span class='hs-varop'>.</span><span class='hs-conid'>Thread</span><span class='hs-varop'>.</span><span class='hs-conid'>Utils</span><span class='hs-layout'>(</span><span class='hs-comment'>-- * I\/O utilities</span>
<a name="line-34"></a> <span class='hs-varid'>runInThread</span>
<a name="line-35"></a> <span class='hs-layout'>)</span>
<a name="line-36"></a><span class='hs-keyword'>where</span>
<a name="line-37"></a>
<a name="line-38"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Concurrent</span>
<a name="line-39"></a>
<a name="line-40"></a><span class='hs-comment'>{- | Takes a IO action and a function. The IO action will be called in a
<a name="line-41"></a>separate thread. When it is completed, the specified function is called with
<a name="line-42"></a>its result. This is a simple way of doing callbacks. -}</span>
<a name="line-43"></a>
<a name="line-44"></a><a name="runInThread"></a><span class='hs-definition'>runInThread</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>ThreadId</span>
<a name="line-45"></a><span class='hs-definition'>runInThread</span> <span class='hs-varid'>action</span> <span class='hs-varid'>callback</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>forkIO</span> <span class='hs-varop'>$</span> <span class='hs-varid'>action</span> <span class='hs-varop'>>>=</span> <span class='hs-varid'>callback</span> <span class='hs-varop'>>></span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
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