1 files changed, 12 insertions, 0 deletions

diff --git a/nacl/curvecp/nanoseconds.c b/nacl/curvecp/nanoseconds.c
new file mode 100644
index 00000000..158ff402
--- /dev/null
+++ b/nacl/curvecp/nanoseconds.c
@@ -0,0 +1,12 @@
+#include <time.h>
+#include "nanoseconds.h"
+
+/* XXX: Y2036 problems; should upgrade to a 128-bit type for this */
+/* XXX: nanosecond granularity limits users to 1 terabyte per second */
+
+long long nanoseconds(void)
+{
+  struct timespec t;
+  if (clock_gettime(CLOCK_REALTIME,&t) != 0) return -1;
+  return t.tv_sec * 1000000000LL + t.tv_nsec;
+}