Use GetSystemTimePreciseAsFileTime if it is available

rust-lang · Mar 9, 2020 · 0605abe · 0605abe
1 parent 3dbade6
commit 0605abe
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Showing 2 changed files with 5 additions and 1 deletion.
diff --git a/src/libstd/sys/windows/c.rs b/src/libstd/sys/windows/c.rs
@@ -1044,6 +1044,10 @@ compat_fn! {
                     _dwBufferSize: DWORD) -> BOOL {
         SetLastError(ERROR_CALL_NOT_IMPLEMENTED as DWORD); 0
     }
+    pub fn GetSystemTimePreciseAsFileTime(lpSystemTimeAsFileTime: LPFILETIME)
+                                          -> () {
+        GetSystemTimeAsFileTime(lpSystemTimeAsFileTime)
+    }
     pub fn SleepConditionVariableSRW(ConditionVariable: PCONDITION_VARIABLE,
                                      SRWLock: PSRWLOCK,
                                      dwMilliseconds: DWORD,

diff --git a/src/libstd/sys/windows/time.rs b/src/libstd/sys/windows/time.rs
@@ -74,7 +74,7 @@ impl SystemTime {
     pub fn now() -> SystemTime {
         unsafe {
             let mut t: SystemTime = mem::zeroed();
-            c::GetSystemTimeAsFileTime(&mut t.t);
+            c::GetSystemTimePreciseAsFileTime(&mut t.t);
             t
         }
     }