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Implements GetTimeInMillis() using std::chrono for portability
Fixes #2995

PiperOrigin-RevId: 329709958
This commit is contained in:
dmauro
2020-09-02 10:36:59 -04:00
committed by Derek Mauro
parent 7b1cf6dd5f
commit 5f8fcf4aa8
1 changed files with 5 additions and 44 deletions
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49
googletest/src/gtest.cc
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@@ -44,6 +44,7 @@
#include <wctype.h>
#include <algorithm>
#include <chrono> // NOLINT
#include <cstdint>
#include <iomanip>
#include <limits>
@@ -55,8 +56,6 @@
#if GTEST_OS_LINUX
# define GTEST_HAS_GETTIMEOFDAY_ 1
# include <fcntl.h> // NOLINT
# include <limits.h> // NOLINT
# include <sched.h> // NOLINT
@@ -68,7 +67,6 @@
# include <string>
#elif GTEST_OS_ZOS
# define GTEST_HAS_GETTIMEOFDAY_ 1
# include <sys/time.h> // NOLINT
// On z/OS we additionally need strings.h for strcasecmp.
@@ -94,16 +92,11 @@
# include <sys/stat.h> // NOLINT
# if GTEST_OS_WINDOWS_MINGW
// MinGW has gettimeofday() but not _ftime64().
# define GTEST_HAS_GETTIMEOFDAY_ 1
# include <sys/time.h> // NOLINT
# endif // GTEST_OS_WINDOWS_MINGW
#else
// Assume other platforms have gettimeofday().
# define GTEST_HAS_GETTIMEOFDAY_ 1
// cpplint thinks that the header is already included, so we want to
// silence it.
# include <sys/time.h> // NOLINT
@@ -1005,42 +998,10 @@ std::string UnitTestImpl::CurrentOsStackTraceExceptTop(int skip_count) {
// Returns the current time in milliseconds.
TimeInMillis GetTimeInMillis() {
#if GTEST_OS_WINDOWS_MOBILE || defined(__BORLANDC__)
// Difference between 1970-01-01 and 1601-01-01 in milliseconds.
// http://analogous.blogspot.com/2005/04/epoch.html
const TimeInMillis kJavaEpochToWinFileTimeDelta =
static_cast<TimeInMillis>(116444736UL) * 100000UL;
const DWORD kTenthMicrosInMilliSecond = 10000;
SYSTEMTIME now_systime;
FILETIME now_filetime;
ULARGE_INTEGER now_int64;
GetSystemTime(&now_systime);
if (SystemTimeToFileTime(&now_systime, &now_filetime)) {
now_int64.LowPart = now_filetime.dwLowDateTime;
now_int64.HighPart = now_filetime.dwHighDateTime;
now_int64.QuadPart = (now_int64.QuadPart / kTenthMicrosInMilliSecond) -
kJavaEpochToWinFileTimeDelta;
return now_int64.QuadPart;
}
return 0;
#elif GTEST_OS_WINDOWS && !GTEST_HAS_GETTIMEOFDAY_
__timeb64 now;
// MSVC 8 deprecates _ftime64(), so we want to suppress warning 4996
// (deprecated function) there.
GTEST_DISABLE_MSC_DEPRECATED_PUSH_()
_ftime64(&now);
GTEST_DISABLE_MSC_DEPRECATED_POP_()
return static_cast<TimeInMillis>(now.time) * 1000 + now.millitm;
#elif GTEST_HAS_GETTIMEOFDAY_
struct timeval now;
gettimeofday(&now, nullptr);
return static_cast<TimeInMillis>(now.tv_sec) * 1000 + now.tv_usec / 1000;
#else
# error "Don't know how to get the current time on your system."
#endif
return std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::system_clock::now() -
std::chrono::system_clock::from_time_t(0))
.count();
}
// Utilities