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76 lines
1.6 KiB
C
76 lines
1.6 KiB
C
/*
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* APPLE Compatibility
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*/
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#ifdef __APPLE__
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/**
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* Missing POSIX Thread Barriers implementation
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*/
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#ifndef PTHREAD_BARRIER_H_
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#define PTHREAD_BARRIER_H_
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#include <pthread.h>
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#include <errno.h>
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typedef int pthread_barrierattr_t;
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typedef struct
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{
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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int count;
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int tripCount;
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} pthread_barrier_t;
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int pthread_barrier_init(pthread_barrier_t *barrier, const pthread_barrierattr_t *attr, unsigned int count);
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int pthread_barrier_destroy(pthread_barrier_t *barrier);
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int pthread_barrier_wait(pthread_barrier_t *barrier);
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#endif // PTHREAD_BARRIER_H_
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// macOS < 10.12 doesn't have clock_gettime()
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#include <time.h>
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#if !defined(CLOCK_REALTIME) && !defined(CLOCK_MONOTONIC)
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#define CLOCK_REALTIME 0
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#define CLOCK_MONOTONIC 6
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typedef int clockid_t;
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#include <sys/time.h>
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#include <mach/mach_time.h>
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// here to avoid problem on linking of qrtplib
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inline int clock_gettime( clockid_t clk_id, struct timespec *ts )
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{
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int ret = -1;
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if ( ts )
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{
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if ( CLOCK_REALTIME == clk_id )
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{
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struct timeval tv;
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ret = gettimeofday(&tv, NULL);
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ts->tv_sec = tv.tv_sec;
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ts->tv_nsec = tv.tv_usec * 1000;
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}
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else if ( CLOCK_MONOTONIC == clk_id )
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{
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const uint64_t t = mach_absolute_time();
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mach_timebase_info_data_t timebase;
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mach_timebase_info(&timebase);
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const uint64_t tdiff = t * timebase.numer / timebase.denom;
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ts->tv_sec = tdiff / 1000000000;
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ts->tv_nsec = tdiff % 1000000000;
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ret = 0;
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}
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}
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return ret;
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}
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#endif // CLOCK_REALTIME and CLOCK_MONOTONIC
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#endif // __APPLE__
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