Initial checkin1.5.6

1 files changed, 58 insertions, 0 deletions

diff --git a/checks/clock.cpp b/checks/clock.cpp
new file mode 100644
index 000000000..02ef431bd
--- /dev/null
+++ b/checks/clock.cpp
@@ -0,0 +1,58 @@
+#include <botan/botan.h>
+using namespace Botan;
+
+#include "common.h"
+#include <time.h>
+
+/*
+  Using clock() or similiar is bad news when using a hardware-based Engine,
+  as all the stuff is offloaded and we use zero CPU time, which makes the
+  benchmarks and such take forever.
+*/
+
+#define USE_CLOCK         1
+#define USE_TIMES         0
+#define USE_POSIX_GETTIME 0
+#define USE_RDTSC         0
+
+/* If using USE_RDTSC, set to your CPU's Mhz */
+#define CPU_MHZ 1333
+
+#if USE_CLOCK
+
+   u64bit get_clock() { return clock(); }
+   u64bit get_ticks() { return CLOCKS_PER_SEC; }
+
+#elif USE_TIMES
+
+  #include <sys/times.h>
+  #include <unistd.h>
+  u64bit get_clock() { return times(0); }
+  u64bit get_ticks() { return sysconf(_SC_CLK_TCK); }
+
+#elif USE_POSIX_GETTIME
+
+u64bit get_clock()
+   {
+   struct timespec tv;
+   clock_gettime(CLOCK_REALTIME, &tv);
+
+   return (tv.tv_sec * 1000000000 + tv.tv_nsec) / 1000;
+   }
+
+u64bit get_ticks() { return 1000000; }
+#elif USE_RDTSC
+
+  u64bit get_clock()
+     {
+     u64bit rtc = 0;
+     u32bit rtc_low = 0, rtc_high = 0;
+     asm volatile("rdtsc" : "=d" (rtc_high), "=a" (rtc_low));
+     rtc = ((u64bit)rtc_high << 32) | rtc_low;
+     return rtc / 1000;
+     }
+
+  u64bit get_ticks() { return CPU_MHZ * 1000; }
+#else
+  #error "Must choose a timing method!"
+#endif