compat/timer-resolution: use undocumented windows API

Unlike timeBeginPeriod in winmm, this one sets the timer
resolution for the calling process, only.

1 files changed, 19 insertions, 0 deletions

diff --git a/compat/timer-resolution.hpp b/compat/timer-resolution.hpp
new file mode 100644
index 00000000..5db877c0
--- /dev/null
+++ b/compat/timer-resolution.hpp
@@ -0,0 +1,19 @@
+#pragma once
+
+#if defined _WIN32
+#   include "export.hpp"
+
+class OTR_COMPAT_EXPORT timer_resolution final
+{
+    unsigned long old_value;
+
+public:
+    timer_resolution(int msecs);
+    ~timer_resolution();
+};
+#else
+struct timer_resolution final
+{
+    inline timer_resolution(int) {}
+};
+#endif