1 files changed, 82 insertions, 0 deletions
diff --git a/old/botan/checks/clock.cpp b/old/botan/checks/clock.cpp
new file mode 100644
index 0000000..e5565ff
--- /dev/null
+++ b/old/botan/checks/clock.cpp
@@ -0,0 +1,82 @@
+#include "timer.h"
+#include <botan/build.h>
+
+/*************************************************
+* Platform specific settings for which clock type to use
+*/
+
+#if !defined(USE_CLOCK_GETTIME) && defined(BOTAN_TARGET_OS_IS_LINUX)
+  #define USE_GETTIMEOFDAY 1
+#endif
+
+#if !defined(USE_GETTIMEOFDAY) && defined(BOTAN_TARGET_OS_IS_FREEBSD)
+  #define USE_GETTIMEOFDAY 1
+#endif
+
+/*************************************************
+  Set the default, which is clock
+*/
+#ifndef USE_CLOCK_GETTIME
+  #define USE_CLOCK_GETTIME 0
+#endif
+
+#ifndef USE_GETTIMEOFDAY
+  #define USE_GETTIMEOFDAY 0
+#endif
+
+#ifndef USE_TIMES
+  #define USE_TIMES 0
+#endif
+
+/* the default: ANSI/ISO clock */
+#ifndef USE_CLOCK
+  #define USE_CLOCK 1
+#endif
+
+#if USE_CLOCK_GETTIME
+  #include <time.h>
+#elif USE_GETTIMEOFDAY
+  #include <sys/time.h>
+#elif USE_TIMES
+  #include <sys/times.h>
+  #include <unistd.h>
+#elif USE_CLOCK
+  #include <time.h>
+#endif
+
+/* The implementation: */
+u64bit Timer::get_clock()
+   {
+   static const u64bit billion = 1000000000;
+
+#if USE_CLOCK_GETTIME
+
+   struct timespec tv;
+   clock_gettime(CLOCK_REALTIME, &tv);
+   return (billion * tv.tv_sec + tv.tv_nsec);
+
+#elif USE_GETTIMEOFDAY
+
+   struct timeval tv;
+   gettimeofday(&tv, 0);
+   return (billion * tv.tv_sec + 1000 * tv.tv_usec);
+
+#elif USE_TIMES
+
+   struct tms tms;
+   times(&tms);
+
+   static const u64bit clocks_to_nanoseconds =
+      (billion / sysconf(_SC_CLK_TCK));
+
+   return (tms.tms_utime * clocks_to_nanoseconds);
+
+#elif USE_CLOCK
+
+   static const u64bit clocks_to_nanoseconds =
+      (billion / CLOCKS_PER_SEC);
+
+   return clock() * clocks_to_nanoseconds;
+
+#endif
+   }