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#include "base/clock.h"
#ifdef OS_WIN
#include <Windows.h>
#include <time.h>
#else // OS_WIN
#ifdef __APPLE__
#include <mach/mach_time.h>
#elif defined(OS_NACL) // __APPLE__
#include <irt.h>
#endif // __APPLE__ or OS_NACL
#include <sys/time.h>
#endif // OS_WIN
#include "base/singleton.h"
#include "absl/time/clock.h"
namespace mozc {
namespace {
class ClockImpl : public ClockInterface {
public:
ClockImpl() : timezone_offset_sec_(0), timezone_(absl::LocalTimeZone()) {}
~ClockImpl() override {}
void GetTimeOfDay(uint64 *sec, uint32 *usec) override {
#ifdef OS_WIN
FILETIME file_time;
GetSystemTimeAsFileTime(&file_time);
ULARGE_INTEGER time_value;
time_value.HighPart = file_time.dwHighDateTime;
time_value.LowPart = file_time.dwLowDateTime;
// Convert into microseconds
time_value.QuadPart /= 10;
// kDeltaEpochInMicroSecs is difference between January 1, 1970 and
// January 1, 1601 in microsecond.
// This number is calculated as follows.
// ((1970 - 1601) * 365 + 89) * 24 * 60 * 60 * 1000000
// 89 is the number of leap years between 1970 and 1601.
const uint64 kDeltaEpochInMicroSecs = 11644473600000000ULL;
// Convert file time to unix epoch
time_value.QuadPart -= kDeltaEpochInMicroSecs;
*sec = static_cast<uint64>(time_value.QuadPart / 1000000UL);
*usec = static_cast<uint32>(time_value.QuadPart % 1000000UL);
#else // OS_WIN
struct timeval tv;
gettimeofday(&tv, nullptr);
*sec = tv.tv_sec;
*usec = tv.tv_usec;
#endif // OS_WIN
}
uint64 GetTime() override {
#ifdef OS_WIN
return static_cast<uint64>(_time64(nullptr));
#else
return static_cast<uint64>(time(nullptr));
#endif // OS_WIN
}
absl::Time GetAbslTime() override {
return absl::Now();
}
uint64 GetFrequency() override {
#if defined(OS_WIN)
LARGE_INTEGER timestamp;
// TODO(yukawa): Consider the case where QueryPerformanceCounter is not
// available.
const BOOL result = ::QueryPerformanceFrequency(×tamp);
return static_cast<uint64>(timestamp.QuadPart);
#elif defined(__APPLE__)
static mach_timebase_info_data_t timebase_info;
mach_timebase_info(&timebase_info);
return static_cast<uint64>(1.0e9 * timebase_info.denom /
timebase_info.numer);
#elif defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_NACL) || \
defined(OS_WASM)
return 1000000uLL;
#else // platforms (OS_WIN, __APPLE__, OS_LINUX, ...)
#error "Not supported platform"
#endif // platforms (OS_WIN, __APPLE__, OS_LINUX, ...)
}
uint64 GetTicks() override {
// TODO(team): Use functions in <chrono> once the use of it is approved.
#if defined(OS_WIN)
LARGE_INTEGER timestamp;
// TODO(yukawa): Consider the case where QueryPerformanceCounter is not
// available.
const BOOL result = ::QueryPerformanceCounter(×tamp);
return static_cast<uint64>(timestamp.QuadPart);
#elif defined(__APPLE__)
return static_cast<uint64>(mach_absolute_time());
#elif defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_NACL) || \
defined(OS_WASM)
uint64 sec;
uint32 usec;
GetTimeOfDay(&sec, &usec);
return sec * 1000000 + usec;
#else // platforms (OS_WIN, __APPLE__, OS_LINUX, ...)
#error "Not supported platform"
#endif // platforms (OS_WIN, __APPLE__, OS_LINUX, ...)
}
const absl::TimeZone& GetTimeZone() override {
return timezone_;
}
void SetTimeZoneOffset(int32 timezone_offset_sec) override {
timezone_offset_sec_ = timezone_offset_sec;
timezone_ = absl::FixedTimeZone(timezone_offset_sec);
}
private:
int32 timezone_offset_sec_;
absl::TimeZone timezone_;
};
} // namespace
using ClockSingleton = SingletonMockable<ClockInterface, ClockImpl>;
void Clock::GetTimeOfDay(uint64 *sec, uint32 *usec) {
ClockSingleton::Get()->GetTimeOfDay(sec, usec);
}
uint64 Clock::GetTime() { return ClockSingleton::Get()->GetTime(); }
absl::Time Clock::GetAbslTime() { return ClockSingleton::Get()->GetAbslTime(); }
uint64 Clock::GetFrequency() { return ClockSingleton::Get()->GetFrequency(); }
uint64 Clock::GetTicks() { return ClockSingleton::Get()->GetTicks(); }
const absl::TimeZone& Clock::GetTimeZone() {
return ClockSingleton::Get()->GetTimeZone();
}
void Clock::SetTimeZoneOffset(int32 timezone_offset_sec) {
return ClockSingleton::Get()->SetTimeZoneOffset(timezone_offset_sec);
}
void Clock::SetClockForUnitTest(ClockInterface *clock) {
ClockSingleton::SetMock(clock);
}
} // namespace mozc