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98 lines
3.8 KiB
HTML
98 lines
3.8 KiB
HTML
<html>
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<meta http-equiv="Content-Type" content=
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"text/html; charset=iso-8859-1">
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<meta name="keywords" content="threads, BTL, thread library, C++">
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<title>Boost.Threads, Configuration Information</title>
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<body bgcolor="#FFFFFF" link="#0000FF" vlink="#800080">
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<table summary="header" border="0" cellpadding="7" cellspacing="0"
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width="100%">
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<tr>
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<td valign="top" width="300">
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<h3><img src="../../../c++boost.gif" alt="C++ Boost" width=
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"277" height="86"></h3>
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</td>
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<td valign="top">
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<h1 align="center">Boost.Threads</h1>
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<h2 align="center">Configuration Information</h2>
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</td>
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</tr>
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<hr>
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<p><b>Boost.Threads</b> uses several configuration macros in <a href=
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"../../config/config.htm"><boost/config.hpp></a>. These macros
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are documented here. Most of the macros are of interest only to
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developers attempting to provide new implementations of <b>
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Boost.Threads</b>. The one exception to this is BOOST_HAS_THREADS.</p>
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<table summary="macros" cellspacing="10" width="100%">
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<tr>
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<td valign="top"><b>Macro</b> </td>
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<td valign="top"><b>Meaning</b> </td>
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</tr>
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<tr>
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<td valign="top">BOOST_HAS_THREADS</td>
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<td valign="top">Indicates that threading support is available.
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This means both that there is a platform specific
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implementation for <b>Boost.Threads</b> and that threading
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support has been enabled in a platform specific manner. For
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instance, on the Win32 platform there's an implementation
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for <b>Boost.Threads</b> but unless the program is compiled
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against one of the multi-threading runtimes (often determined
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by the compiler predefining the macro _MT) the
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BOOST_HAS_THREADS macro remains undefined.</td>
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</tr>
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<tr>
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<td valign="top">BOOST_HAS_WINTHREADS</td>
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<td valign="top">Indicates that the platform has the Microsoft
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Win32 threading libraries, and that they should be used to
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implement <b>Boost.Threads</b>.</td>
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</tr>
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<tr>
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<td valign="top">BOOST_HAS_PTHREADS</td>
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<td valign="top">Indicates that the platform has the POSIX
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pthreads libraries, and that they should be used to implement
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<b>Boost.Threads</b>.</td>
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</tr>
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<tr>
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<td valign="top">BOOST_HAS_FTIME</td>
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<td valign="top">Indicates that the implementation should use
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GetSystemTimeAsFileTime() and the FILETIME type to calculate
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the current time. This is an implementation detail used by
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boost::detail::getcurtime().</td>
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</tr>
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<tr>
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<td valign="top">BOOST_HAS_GETTTIMEOFDAY</td>
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<td valign="top">Indicates that the implementation should use
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gettimeofday() to calculate the current time. This is an
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implementation detail used by boost::detail::getcurtime().</td>
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</tr>
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</table>
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<hr>
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<p>Revised
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<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan -->05 November, 2001<!--webbot bot="Timestamp" endspan i-checksum="39359" --></p>
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<p><i>© Copyright <a href="mailto:williamkempf@hotmail.com">
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William E. Kempf</a> 2001 all rights reserved.</i></p>
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</body>
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</html>
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