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#include "datetime.h"
#include "yassert.h"
#include "platform.h"
#include "cpu_id.h"
#include <util/datetime/systime.h>
#include <ctime>
#include <cerrno>
#ifdef _darwin_
#include <AvailabilityMacros.h>
#if defined(MAC_OS_X_VERSION_10_12) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_12
#define Y_HAS_CLOCK_GETTIME
#endif
#elif defined(_linux_) || defined(_freebsd_) || defined(_cygwin_)
#define Y_HAS_CLOCK_GETTIME
#endif
static ui64 ToMicroSeconds(const struct timeval& tv) {
return (ui64)tv.tv_sec * 1000000 + (ui64)tv.tv_usec;
}
#if defined(_win_)
static ui64 ToMicroSeconds(const FILETIME& ft) {
return (((ui64)ft.dwHighDateTime << 32) + (ui64)ft.dwLowDateTime) / (ui64)10;
}
#elif defined(Y_HAS_CLOCK_GETTIME)
static ui64 ToMicroSeconds(const struct timespec& ts) {
return (ui64)ts.tv_sec * 1000000 + (ui64)ts.tv_nsec / 1000;
}
#endif
ui64 MicroSeconds() noexcept {
struct timeval tv;
gettimeofday(&tv, nullptr);
return ToMicroSeconds(tv);
}
ui64 ThreadCPUUserTime() noexcept {
#if defined(_win_)
FILETIME creationTime, exitTime, kernelTime, userTime;
GetThreadTimes(GetCurrentThread(), &creationTime, &exitTime, &kernelTime, &userTime);
return ToMicroSeconds(userTime);
#else
return 0;
#endif
}
ui64 ThreadCPUSystemTime() noexcept {
#if defined(_win_)
FILETIME creationTime, exitTime, kernelTime, userTime;
GetThreadTimes(GetCurrentThread(), &creationTime, &exitTime, &kernelTime, &userTime);
return ToMicroSeconds(kernelTime);
#else
return 0;
#endif
}
ui64 ThreadCPUTime() noexcept {
#if defined(_win_)
FILETIME creationTime, exitTime, kernelTime, userTime;
GetThreadTimes(GetCurrentThread(), &creationTime, &exitTime, &kernelTime, &userTime);
return ToMicroSeconds(userTime) + ToMicroSeconds(kernelTime);
#elif defined(Y_HAS_CLOCK_GETTIME)
struct timespec ts;
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &ts);
return ToMicroSeconds(ts);
#else
return 0;
#endif
}
ui32 Seconds() noexcept {
struct timeval tv;
gettimeofday(&tv, nullptr);
return tv.tv_sec;
}
void NanoSleep(ui64 ns) noexcept {
#if defined(_win_)
Sleep(ns / 1000000);
#else
const ui64 NS = 1000 * 1000 * 1000;
struct timespec req;
req.tv_sec = ns / NS;
req.tv_nsec = ns % NS;
struct timespec left;
while (nanosleep(&req, &left) < 0) {
Y_ASSERT(errno == EINTR);
req = left;
}
#endif
}
#if defined(_x86_)
namespace NPrivate {
bool HaveRdtscpImpl() {
return NX86::HaveRDTSCP();
}
}
#endif
#ifdef Y_HAS_CLOCK_GETTIME
#undef Y_HAS_CLOCK_GETTIME
#endif
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