mirror of
https://github.com/badaix/snapcast
synced 2025-02-22 14:54:30 +01:00
163 lines
4.3 KiB
C++
163 lines
4.3 KiB
C++
/***
|
|
This file is part of snapcast
|
|
Copyright (C) 2014-2024 Johannes Pohl
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#pragma once
|
|
|
|
|
|
// standard headers
|
|
#include <chrono>
|
|
#include <thread>
|
|
#ifdef MACOS
|
|
#include <mach/clock.h>
|
|
#include <mach/mach.h>
|
|
#endif
|
|
|
|
#ifndef WINDOWS
|
|
#include <sys/time.h>
|
|
#else
|
|
#include <Windows.h>
|
|
#include <stdint.h>
|
|
#include <winsock2.h>
|
|
#endif
|
|
|
|
|
|
namespace chronos
|
|
{
|
|
using clk =
|
|
#ifndef WINDOWS
|
|
std::chrono::steady_clock;
|
|
#else
|
|
std::chrono::system_clock;
|
|
#endif
|
|
using time_point_clk = std::chrono::time_point<clk>;
|
|
using sec = std::chrono::seconds;
|
|
using msec = std::chrono::milliseconds;
|
|
using usec = std::chrono::microseconds;
|
|
using nsec = std::chrono::nanoseconds;
|
|
|
|
template <class Clock>
|
|
inline static void timeofday(struct timeval* tv)
|
|
{
|
|
auto now = Clock::now();
|
|
auto microsecs = std::chrono::duration_cast<std::chrono::microseconds>(now.time_since_epoch());
|
|
tv->tv_sec = static_cast<long>(microsecs.count() / 1000000);
|
|
tv->tv_usec = static_cast<long>(microsecs.count() % 1000000);
|
|
}
|
|
|
|
#ifdef WINDOWS
|
|
// Implementation from http://stackoverflow.com/a/26085827/2510022
|
|
inline static int gettimeofday(struct timeval* tp, struct timezone* tzp)
|
|
{
|
|
std::ignore = tzp;
|
|
// Note: some broken versions only have 8 trailing zero's, the correct epoch has 9 trailing zero's
|
|
static const uint64_t EPOCH = ((uint64_t)116444736000000000ULL);
|
|
|
|
SYSTEMTIME system_time;
|
|
FILETIME file_time;
|
|
uint64_t time;
|
|
|
|
GetSystemTime(&system_time);
|
|
SystemTimeToFileTime(&system_time, &file_time);
|
|
time = ((uint64_t)file_time.dwLowDateTime);
|
|
time += ((uint64_t)file_time.dwHighDateTime) << 32;
|
|
|
|
tp->tv_sec = (long)((time - EPOCH) / 10000000L);
|
|
tp->tv_usec = (long)(system_time.wMilliseconds * 1000);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
inline static void steadytimeofday(struct timeval* tv)
|
|
{
|
|
#ifndef WINDOWS
|
|
timeofday<clk>(tv);
|
|
#else
|
|
gettimeofday(tv, NULL);
|
|
#endif
|
|
}
|
|
|
|
inline static void systemtimeofday(struct timeval* tv)
|
|
{
|
|
timeofday<std::chrono::system_clock>(tv);
|
|
}
|
|
|
|
template <class ToDuration>
|
|
inline ToDuration diff(const timeval& tv1, const timeval& tv2)
|
|
{
|
|
auto sec = tv1.tv_sec - tv2.tv_sec;
|
|
auto usec = tv1.tv_usec - tv2.tv_usec;
|
|
while (usec < 0)
|
|
{
|
|
sec -= 1;
|
|
usec += 1000000;
|
|
}
|
|
return std::chrono::duration_cast<ToDuration>(std::chrono::seconds(sec) + std::chrono::microseconds(usec));
|
|
}
|
|
|
|
inline static long getTickCount()
|
|
{
|
|
#if defined(MACOS)
|
|
clock_serv_t cclock;
|
|
mach_timespec_t mts;
|
|
host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &cclock);
|
|
clock_get_time(cclock, &mts);
|
|
mach_port_deallocate(mach_task_self(), cclock);
|
|
return mts.tv_sec * 1000 + mts.tv_nsec / 1000000;
|
|
#elif defined(WINDOWS)
|
|
return getTickCount();
|
|
#else
|
|
struct timespec now;
|
|
clock_gettime(CLOCK_MONOTONIC, &now);
|
|
return now.tv_sec * 1000 + now.tv_nsec / 1000000;
|
|
#endif
|
|
}
|
|
|
|
template <class Rep, class Period>
|
|
inline std::chrono::duration<Rep, Period> abs(std::chrono::duration<Rep, Period> d)
|
|
{
|
|
Rep x = d.count();
|
|
return std::chrono::duration<Rep, Period>(x >= 0 ? x : -x);
|
|
}
|
|
|
|
template <class ToDuration, class Rep, class Period>
|
|
inline int64_t duration(std::chrono::duration<Rep, Period> d)
|
|
{
|
|
return std::chrono::duration_cast<ToDuration>(d).count();
|
|
}
|
|
|
|
/// some sleep functions. Just for convenience.
|
|
template <class Rep, class Period>
|
|
inline void sleep(const std::chrono::duration<Rep, Period>& sleep_duration)
|
|
{
|
|
std::this_thread::sleep_for(sleep_duration);
|
|
}
|
|
|
|
inline void sleep(const int32_t& milliseconds)
|
|
{
|
|
if (milliseconds < 0)
|
|
return;
|
|
sleep(msec(milliseconds));
|
|
}
|
|
|
|
inline void usleep(const int32_t& microseconds)
|
|
{
|
|
if (microseconds < 0)
|
|
return;
|
|
sleep(usec(microseconds));
|
|
}
|
|
} // namespace chronos
|