Changeset 89827 in vbox for trunk/src/VBox/Runtime/r3/win/init-win.cpp

Timestamp:

Jun 22, 2021 9:01:04 AM (3 years ago)

Author:

vboxsync

Message:

Runtime: Make use of CreateWaitableTimerEx and CREATE_WAITABLE_TIMER_HIGH_RESOLUTION available on newer Windwos 10 release to improve timer accuracy for sub tick intervals

File:

• trunk/src/VBox/Runtime/r3/win/init-win.cpp (modified) (2 diffs)

trunk/src/VBox/Runtime/r3/win/init-win.cpp

@@ -77 +77 @@
 /** SystemTimeToTzSpecificLocalTime. */
 DECL_HIDDEN_DATA(decltype(SystemTimeToTzSpecificLocalTime) *) g_pfnSystemTimeToTzSpecificLocalTime = NULL;
+/** CreateWaitableTimerEx . */
+DECL_HIDDEN_DATA(PFNCREATEWAITABLETIMEREX)      g_pfnCreateWaitableTimerExW = NULL;
 
 /** The native ntdll.dll handle. */
@@ -513 +515 @@
         g_pfnGetSystemWindowsDirectoryW = (PFNGETWINSYSDIR)GetProcAddress(g_hModKernel32, "GetWindowsDirectoryW");
     g_pfnSystemTimeToTzSpecificLocalTime = (decltype(SystemTimeToTzSpecificLocalTime) *)GetProcAddress(g_hModKernel32, "SystemTimeToTzSpecificLocalTime");
+    g_pfnCreateWaitableTimerExW = (PFNCREATEWAITABLETIMEREX)GetProcAddress(g_hModKernel32, "CreateWaitableTimerExW");
 
     /*