Gosu::milliseconds returns milliseconds since start on Win/Unix

There's still this 149-runtime-days-overflow, but at least it won't happen "randomly" anymore.
gosu · May 31, 2012 · 3650684 · 3650684
1 parent 44ebc65
commit 3650684
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Showing 2 changed files with 12 additions and 5 deletions.
diff --git a/GosuImpl/TimingUnix.cpp b/GosuImpl/TimingUnix.cpp
@@ -9,10 +9,16 @@ void Gosu::sleep(unsigned milliseconds)
 
 unsigned long Gosu::milliseconds()
 {
+		static unsigned long start = 0;
+
     timeval tp;
     gettimeofday(&tp, NULL);
+
+		if (!start)
+			start = tp.tv_usec / 1000UL + tp.tv_sec * 1000UL;
+
     // Truncate to 2^30, C++ users shouldn't mind and Ruby users will
     // have a happy GC on 32-bit systems.
     // No, don't ask why this is an unsigned long then :)
-    return (tp.tv_usec / 1000UL + tp.tv_sec * 1000UL) & 0x1fffffff;
+    return (tp.tv_usec / 1000UL + tp.tv_sec * 1000UL - start) & 0x1fffffff;
 }
diff --git a/GosuImpl/TimingWin.cpp b/GosuImpl/TimingWin.cpp
@@ -17,15 +17,16 @@ namespace
 
 unsigned long Gosu::milliseconds()
 {
-    static bool init = false;
-    if (!init)
+		static unsigned long start = 0;
+
+    if (!start)
     {
         if (::timeBeginPeriod(1) != TIMERR_NOERROR)
             std::atexit(resetTGT);
-        init = true;
+				start = ::timeGetTime();
     }
     // Truncate to 2^30, C++ users shouldn't mind and Ruby users will
     // have a happy GC on 32-bit systems.
     // No, don't ask why this is an unsigned long then :)
-    return ::timeGetTime() & 0x1fffffff;
+    return (::timeGetTime() - start) & 0x1fffffff;
 }