mirror of https://github.com/f4exb/sdrangel.git
80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
/*
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* APPLE Compatibility
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*/
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#ifdef __APPLE__
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#include <pthread.h>
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#include <errno.h>
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#include "apple_compat.h"
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int pthread_barrier_init(pthread_barrier_t *barrier, const pthread_barrierattr_t *attr, unsigned int count)
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{
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if(count == 0)
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{
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errno = EINVAL;
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return -1;
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}
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if(pthread_mutex_init(&barrier->mutex, 0) < 0)
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{
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return -1;
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}
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if(pthread_cond_init(&barrier->cond, 0) < 0)
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{
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pthread_mutex_destroy(&barrier->mutex);
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return -1;
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}
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barrier->tripCount = count;
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barrier->count = 0;
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return 0;
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}
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int pthread_barrier_destroy(pthread_barrier_t *barrier)
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{
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pthread_cond_destroy(&barrier->cond);
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pthread_mutex_destroy(&barrier->mutex);
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return 0;
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}
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int pthread_barrier_wait(pthread_barrier_t *barrier)
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{
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pthread_mutex_lock(&barrier->mutex);
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++(barrier->count);
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if(barrier->count >= barrier->tripCount)
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{
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barrier->count = 0;
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pthread_cond_broadcast(&barrier->cond);
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pthread_mutex_unlock(&barrier->mutex);
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return 1;
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}
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else
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{
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pthread_cond_wait(&barrier->cond, &(barrier->mutex));
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pthread_mutex_unlock(&barrier->mutex);
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return 0;
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}
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}
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#ifdef _DARWIN_FEATURE_CLOCK_GETTIME
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/**
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* Missing POSIX RealTime/Monotonic Clock
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*/
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#include <mach/mach_time.h>
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int clock_gettime(int clk_id, struct timespec *t) {
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mach_timebase_info_data_t timebase;
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mach_timebase_info(&timebase);
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uint64_t time;
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time = mach_absolute_time();
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double nseconds = ((double)time * (double)timebase.numer)/((double)timebase.denom);
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double seconds = ((double)time * (double)timebase.numer)/((double)timebase.denom * 1e9);
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t->tv_sec = seconds;
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t->tv_nsec = nseconds;
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return 0;
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}
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#endif
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#endif // APPLE Compatibility
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