https://svn.boost.org/trac10/ticket/8797 <p> this patch adds support for semaphores to boost.thread. </p> <p> in addition to an emulation with mutex/condition_variable/counter, it provides native implementations for win32, posix and dispatch semaphores. the reason for adding native implementations is performance: they perform much better than an emulation. on osx, i have seen a speedup of 80 in microbenchmarks with strong contention. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/8797 Trac 1.4.3 timblechmann Mon, 08 Jul 2013 08:56:30 GMT https://svn.boost.org/trac10/ticket/8797 https://svn.boost.org/trac10/ticket/8797 <ul> <li><strong>attachment</strong> → <span class="trac-field-new">0001-thread-semaphore-implementation.patch</span> </li> </ul> Ticket viboes Fri, 12 Jul 2013 06:38:36 GMT https://svn.boost.org/trac10/ticket/8797#comment:1 https://svn.boost.org/trac10/ticket/8797#comment:1 <ul> <li><strong>owner</strong> changed from <span class="trac-author">Anthony Williams</span> to <span class="trac-author">viboes</span> </li> <li><strong>status</strong> <span class="trac-field-old">new</span> → <span class="trac-field-new">assigned</span> </li> </ul> Ticket viboes Tue, 10 Sep 2013 20:54:32 GMT https://svn.boost.org/trac10/ticket/8797#comment:2 https://svn.boost.org/trac10/ticket/8797#comment:2 <ul> <li><strong>severity</strong> <span class="trac-field-old">Problem</span> → <span class="trac-field-new">Not Applicable</span> </li> </ul> Ticket viboes Sun, 15 Sep 2013 21:51:36 GMT https://svn.boost.org/trac10/ticket/8797#comment:3 https://svn.boost.org/trac10/ticket/8797#comment:3 <ul> <li><strong>status</strong> <span class="trac-field-old">assigned</span> → <span class="trac-field-new">closed</span> </li> <li><strong>resolution</strong> → <span class="trac-field-new">wontfix</span> </li> </ul> <p> As you will add it to Boost.Sync, I close the ticket. </p> Ticket