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// All rights reserved.
//
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// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
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// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#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"
namespace mozc {
namespace {
class ClockImpl : public ClockInterface {
public:
#ifndef OS_NACL
ClockImpl() {}
#else // OS_NACL
ClockImpl() : timezone_offset_sec_(0) {}
#endif // OS_NACL
virtual ~ClockImpl() {}
virtual void GetTimeOfDay(uint64 *sec, uint32 *usec) {
#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
}
virtual uint64 GetTime() {
#ifdef OS_WIN
return static_cast<uint64>(_time64(nullptr));
#else
return static_cast<uint64>(time(nullptr));
#endif // OS_WIN
}
virtual bool GetTmWithOffsetSecond(time_t offset_sec, tm *output) {
const time_t current_sec = static_cast<time_t>(this->GetTime());
const time_t modified_sec = current_sec + offset_sec;
#ifdef OS_WIN
if (_localtime64_s(output, &modified_sec) != 0) {
return false;
}
#elif defined(OS_NACL)
const time_t localtime_sec = modified_sec + timezone_offset_sec_;
if (gmtime_r(&localtime_sec, output) == nullptr) {
return false;
}
#else // !OS_WIN && !OS_NACL
if (localtime_r(&modified_sec, output) == nullptr) {
return false;
}
#endif // OS_WIN
return true;
}
virtual uint64 GetFrequency() {
#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, ...)
}
virtual uint64 GetTicks() {
// 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, ...)
}
#ifdef OS_NACL
virtual void SetTimezoneOffset(int32 timezone_offset_sec) {
timezone_offset_sec_ = timezone_offset_sec;
}
private:
int32 timezone_offset_sec_;
#endif // OS_NACL
};
ClockInterface *g_clock = nullptr;
inline ClockInterface *GetClock() {
return g_clock != nullptr ? g_clock : Singleton<ClockImpl>::get();
}
} // namespace
void Clock::GetTimeOfDay(uint64 *sec, uint32 *usec) {
GetClock()->GetTimeOfDay(sec, usec);
}
uint64 Clock::GetTime() { return GetClock()->GetTime(); }
bool Clock::GetTmWithOffsetSecond(tm *time_with_offset, int offset_sec) {
return GetClock()->GetTmWithOffsetSecond(offset_sec, time_with_offset);
}
uint64 Clock::GetFrequency() { return GetClock()->GetFrequency(); }
uint64 Clock::GetTicks() { return GetClock()->GetTicks(); }
#ifdef OS_NACL
void Clock::SetTimezoneOffset(int32 timezone_offset_sec) {
return GetClock()->SetTimezoneOffset(timezone_offset_sec);
}
#endif // OS_NACL
void Clock::SetClockForUnitTest(ClockInterface *clock) { g_clock = clock; }
} // namespace mozc