81 lines
1.7 KiB
C++
81 lines
1.7 KiB
C++
/*
|
|
* This file is part of libgim.
|
|
*
|
|
* libgim 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.
|
|
*
|
|
* libgim 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 libgim. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Copyright 2010 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
#include "time.hpp"
|
|
|
|
#include "debug.hpp"
|
|
#include "platform.hpp"
|
|
#include "types/casts.hpp"
|
|
|
|
|
|
using namespace util;
|
|
|
|
#ifdef PLATFORM_WIN32
|
|
|
|
#include <windows.h>
|
|
|
|
uint64_t
|
|
util::nanoseconds (void) {
|
|
LARGE_INTEGER freq, count;
|
|
QueryPerformanceFrequency (&freq);
|
|
QueryPerformanceCounter (&count);
|
|
|
|
return ((double)count.QuadPart / freq.QuadPart) * 1000000000UL;
|
|
}
|
|
|
|
|
|
void
|
|
util::sleep (uint64_t ns) {
|
|
static const uint64_t ns_in_ms = 1000000;
|
|
Sleep (ns / ns_in_ms);
|
|
}
|
|
|
|
#else
|
|
|
|
#include <ctime>
|
|
|
|
uint64_t
|
|
util::nanoseconds (void) {
|
|
struct timespec t;
|
|
clock_gettime (CLOCK_REALTIME, &t);
|
|
|
|
CHECK_SOFT (t.tv_sec > 0);
|
|
CHECK_SOFT (t.tv_nsec > 0);
|
|
|
|
return static_cast<uint64_t> (t.tv_sec) * 1000000000ULL + static_cast<uint64_t> (t.tv_nsec);
|
|
}
|
|
|
|
|
|
void
|
|
util::sleep (uint64_t ns) {
|
|
struct timespec req, rem;
|
|
|
|
req.tv_sec = sign_cast<time_t> (ns / 1000000000UL);
|
|
req.tv_nsec = sign_cast<long> (ns % 1000000000UL);
|
|
|
|
while (nanosleep (&req, &rem)) {
|
|
req = rem;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|