add GetProcessorCount() implementation for Solaris

diff --git a/src/util.cc b/src/util.cc
index 580f22ab9daa60b167ad529472f2f4917167f05e..0feb99dd01c64e17371c7b8783926e0c906a0b10 100644 (file)
--- a/src/util.cc
+++ b/src/util.cc
@@ -36,6 +36,9 @@
 
 #if defined(__APPLE__) || defined(__FreeBSD__)
 #include <sys/sysctl.h>
+#elif defined(__SVR4) && defined(__sun)
+#include <unistd.h>
+#include <sys/loadavg.h>
 #elif defined(linux)
 #include <sys/sysinfo.h>
 #endif
@@ -314,6 +317,12 @@ int GetProcessorCount() {
   GetSystemInfo(&info);
   return info.dwNumberOfProcessors;
 }
+#else
+// This is what get_nprocs() should be doing in the Linux implementation
+// above, but in a more standard way.
+int GetProcessorCount() {
+  return sysconf(_SC_NPROCESSORS_ONLN);
+}
 #endif
 
 #ifdef _WIN32