windows: Provide a time_monotonic() based on GetTickCount64()

diff --git a/src/libstrongswan/utils/utils.c b/src/libstrongswan/utils/utils.c
index 70fd1cb312a2219ff0517f8ecca7fb81b4a2b1ab..dc0608627a5b6693d01f08fb3e812d18f70cb571 100644 (file)
--- a/src/libstrongswan/utils/utils.c
+++ b/src/libstrongswan/utils/utils.c
@@ -15,6 +15,13 @@
  */
 
 #define _GNU_SOURCE /* for memrchr */
+#ifdef WIN32
+/* for GetTickCount64, Windows 7 */
+# define _WIN32_WINNT 0x0601
+#endif
+
+#include "utils.h"
+
 #include <sys/stat.h>
 #include <string.h>
 #include <stdio.h>
@@ -441,6 +448,19 @@ void closefrom(int lowfd)
  */
 time_t time_monotonic(timeval_t *tv)
 {
+#ifdef WIN32
+       ULONGLONG ms;
+       time_t s;
+
+       ms = GetTickCount64();
+       s = ms / 1000;
+       if (tv)
+       {
+               tv->tv_sec = s;
+               tv->tv_usec = (ms - (s * 1000)) * 1000;
+       }
+       return s;
+#else /* !WIN32 */
 #if defined(HAVE_CLOCK_GETTIME) && \
        (defined(HAVE_CONDATTR_CLOCK_MONOTONIC) || \
         defined(HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC))
@@ -472,6 +492,7 @@ time_t time_monotonic(timeval_t *tv)
                return -1;
        }
        return tv->tv_sec;
+#endif /* !WIN32 */
 }
 
 /**