context: added to release

[SVN r78539]

performance/bind_processor_linux.cpp

@@ -0,0 +1,39 @@
+
+//          Copyright Oliver Kowalke 2009.
+// Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//          http://www.boost.org/LICENSE_1_0.txt)
+
+#include "bind_processor.hpp"
+
+extern "C"
+{
+#include <pthread.h>
+#include <sched.h>
+}
+
+#include <boost/assert.hpp>
+#include <boost/thread.hpp>
+#include <boost/system/system_error.hpp>
+
+#include <boost/config/abi_prefix.hpp>
+
+void bind_to_processor( unsigned int n)
+{
+    BOOST_ASSERT( n >= 0);
+    BOOST_ASSERT( n < CPU_SETSIZE);
+    BOOST_ASSERT( n < boost::thread::hardware_concurrency() );
+
+    cpu_set_t cpuset;
+    CPU_ZERO( & cpuset);
+    CPU_SET( n, & cpuset);
+
+    int errno_( ::pthread_setaffinity_np( ::pthread_self(), sizeof( cpuset), & cpuset) );
+    if ( errno_ != 0)
+        throw boost::system::system_error(
+                boost::system::error_code(
+                    errno_,
+                    boost::system::system_category() ) );
+}
+
+#include <boost/config/abi_suffix.hpp>