[Boost-commit] svn:boost r42195 - trunk/libs/thread/src/pthread

From: anthony_at_[hidden]
Date: 2007-12-20 03:37:03

Author: anthonyw
Date: 2007-12-20 03:37:02 EST (Thu, 20 Dec 2007)
New Revision: 42195
URL: http://svn.boost.org/trac/boost/changeset/42195

Log:
added hardware_concurrency support for apple, freebsd and sun platforms
Text files modified: 
   trunk/libs/thread/src/pthread/thread.cpp |    12 ++++++++++++                            
   1 files changed, 12 insertions(+), 0 deletions(-)

Modified: trunk/libs/thread/src/pthread/thread.cpp
==============================================================================
--- trunk/libs/thread/src/pthread/thread.cpp	(original)
+++ trunk/libs/thread/src/pthread/thread.cpp	2007-12-20 03:37:02 EST (Thu, 20 Dec 2007)
@@ -15,6 +15,11 @@
 #include <boost/thread/tss.hpp>
 #ifdef __linux__
 #include <sys/sysinfo.h>
+#elif defined(__APPLE__) || defined(__FreeBSD__)
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#elif defined(__sun)
+#include <unistd.h>
 #endif
 
 #include "timeconv.inl"
@@ -415,6 +420,13 @@
         return pthread_num_processors_np();
 #elif defined(__linux__)
         return get_nprocs();
+#elif defined(__APPLE__) || defined(__FreeBSD__)
+        int count;
+        size_t size=sizeof(count);
+        return sysctlbyname("hw.ncpu",&count,&size,NULL,0)?0:count;
+#elif defined(__sun)
+        int const count=sysconf(_SC_NPROCESSORS_ONLN);
+        return (count>0)?count:0;
 #else
         return 0;
 #endif