X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/a5eb7820a59f534546dbc237c589b0141db581b1..c48c4d7856cc61694b9bb1a4d9a33f693cb4fbe2:/client/util.c

diff --git a/client/util.c b/client/util.c
index 5c2579b1..13067ec1 100644
--- a/client/util.c
+++ b/client/util.c
@@ -656,3 +656,19 @@ uint64_t msclock() {
 	return (t.tv_sec * 1000 + t.tv_nsec / 1000000);
 #endif
 }
+
+// determine number of logical CPU cores (use for multithreaded functions)
+extern int num_CPUs(void)
+{
+#if defined(_WIN32)
+	#include <sysinfoapi.h>
+	SYSTEM_INFO sysinfo;
+	GetSystemInfo(&sysinfo);
+	return sysinfo.dwNumberOfProcessors;
+#elif defined(__linux__) || defined(__APPLE__)
+	#include <unistd.h>
+	return sysconf(_SC_NPROCESSORS_ONLN);
+#else
+	return 1;
+#endif
+}