Fixes to allow MingW compilation.

2002-09-06 20:05:40 +00:00
parent 87dcaf5a00
commit c8ef854f01
4 changed files with 40 additions and 6 deletions
@@ -49,6 +49,31 @@ SGMutex::trylock()
    return true;
 }

+#if defined(_MSC_VER) || defined(__MINGW32__)
+int gettimeofday(struct timeval* tp, void* tzp) {
+    LARGE_INTEGER t;
+
+    if(QueryPerformanceCounter(&t)) {
+        /* hardware supports a performance counter */
+        LARGE_INTEGER f;
+        QueryPerformanceFrequency(&f);
+        tp->tv_sec = t.QuadPart/f.QuadPart;
+        tp->tv_usec = ((float)t.QuadPart/f.QuadPart*1000*1000)
+            - (tp->tv_sec*1000*1000);
+    } else {
+        /* hardware doesn't support a performance counter, so get the
+           time in a more traditional way. */
+        DWORD t;
+        t = timeGetTime();
+        tp->tv_sec = t / 1000;
+        tp->tv_usec = t % 1000;
+    }
+
+    /* 0 indicates that the call succeeded. */
+    return 0;
+}
+#endif
+
 bool
 SGCondition::wait( SGMutex& mutex, unsigned long ms )
 {