mirror of
https://github.com/badaix/snapcast.git
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135 lines
3.5 KiB
C++
135 lines
3.5 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2014-2020 Johannes Pohl
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef TIME_DEFS_H
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#define TIME_DEFS_H
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#include <chrono>
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#include <sys/time.h>
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#include <thread>
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#ifdef MACOS
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#include <mach/clock.h>
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#include <mach/mach.h>
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#endif
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namespace chronos
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{
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typedef std::chrono::system_clock clk;
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typedef std::chrono::time_point<clk> time_point_clk;
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typedef std::chrono::seconds sec;
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typedef std::chrono::milliseconds msec;
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typedef std::chrono::microseconds usec;
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typedef std::chrono::nanoseconds nsec;
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template <class Clock>
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inline static void timeofday(struct timeval* tv)
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{
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auto now = Clock::now();
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auto millisecs = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch());
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tv->tv_sec = millisecs.count() / 1000;
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tv->tv_usec = (millisecs.count() % 1000) * 1000;
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}
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inline static void systemtimeofday(struct timeval* tv)
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{
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gettimeofday(tv, nullptr);
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// timeofday<std::chrono::system_clock>(tv);
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}
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template <class ToDuration>
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inline ToDuration diff(const timeval& tv1, const timeval& tv2)
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{
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auto sec = tv1.tv_sec - tv2.tv_sec;
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auto usec = tv1.tv_usec - tv2.tv_usec;
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while (usec < 0)
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{
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sec -= 1;
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usec += 1000000;
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}
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return std::chrono::duration_cast<ToDuration>(std::chrono::seconds(sec) + std::chrono::microseconds(usec));
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}
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inline static void addUs(timeval& tv, int us)
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{
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if (us < 0)
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{
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timeval t;
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t.tv_sec = -us / 1000000;
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t.tv_usec = (-us % 1000000);
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timersub(&tv, &t, &tv);
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return;
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}
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tv.tv_usec += us;
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tv.tv_sec += (tv.tv_usec / 1000000);
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tv.tv_usec %= 1000000;
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}
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inline static long getTickCount()
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{
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#ifdef MACOS
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clock_serv_t cclock;
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mach_timespec_t mts;
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host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
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clock_get_time(cclock, &mts);
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mach_port_deallocate(mach_task_self(), cclock);
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return mts.tv_sec * 1000 + mts.tv_nsec / 1000000;
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#else
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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return now.tv_sec * 1000 + now.tv_nsec / 1000000;
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#endif
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}
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template <class Rep, class Period>
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inline std::chrono::duration<Rep, Period> abs(std::chrono::duration<Rep, Period> d)
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{
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Rep x = d.count();
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return std::chrono::duration<Rep, Period>(x >= 0 ? x : -x);
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}
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template <class ToDuration, class Rep, class Period>
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inline int64_t duration(std::chrono::duration<Rep, Period> d)
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{
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return std::chrono::duration_cast<ToDuration>(d).count();
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}
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/// some sleep functions. Just for convenience.
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template <class Rep, class Period>
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inline void sleep(const std::chrono::duration<Rep, Period>& sleep_duration)
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{
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std::this_thread::sleep_for(sleep_duration);
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}
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inline void sleep(const int32_t& milliseconds)
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{
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if (milliseconds < 0)
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return;
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sleep(msec(milliseconds));
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}
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inline void usleep(const int32_t& microseconds)
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{
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if (microseconds < 0)
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return;
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sleep(usec(microseconds));
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}
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} // namespace chronos
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#endif
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