/*
- * Copyright 2016 Facebook, Inc.
+ * Copyright 2017 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <folly/portability/SysTime.h>
#ifdef _WIN32
+
#include <cstdint>
-#include <Windows.h>
extern "C" {
-int gettimeofday(timeval* tv, timezone*) {
+int gettimeofday(timeval* tv, struct timezone*) {
constexpr auto posixWinFtOffset = 116444736000000000ULL;
if (tv) {
FILETIME ft;
+ ULARGE_INTEGER lft;
GetSystemTimeAsFileTime(&ft);
- uint64_t ns = *(uint64_t*)&ft;
+ // As per the docs of FILETIME, don't just do an indirect
+ // pointer cast, to avoid alignment faults.
+ lft.HighPart = ft.dwHighDateTime;
+ lft.LowPart = ft.dwLowDateTime;
+ uint64_t ns = lft.QuadPart;
tv->tv_usec = (long)((ns / 10ULL) % 1000000ULL);
tv->tv_sec = (long)((ns - posixWinFtOffset) / 10000000ULL);
}
}
}
}
+
#endif