62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
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/*
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* Public domain
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* sys/time.h compatibility shim
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*/
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#if defined(_MSC_VER) && (_MSC_VER >= 1900)
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#include <../ucrt/time.h>
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#elif defined(_MSC_VER) && (_MSC_VER < 1900)
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#include <../include/time.h>
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#else
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#include <time.h>
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#endif
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#ifndef _COMPAT_TIME_H
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#define _COMPAT_TIME_H
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#ifndef CLOCK_MONOTONIC
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#define CLOCK_MONOTONIC CLOCK_REALTIME
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#endif
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#ifndef CLOCK_REALTIME
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#define CLOCK_REALTIME 0
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#endif
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#ifndef HAVE_CLOCK_GETTIME
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typedef int clockid_t;
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int clock_gettime(clockid_t, struct timespec *);
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#endif
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#ifdef HAVE_TIMESPECSUB
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#include <sys/time.h>
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#endif
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#ifndef HAVE_TIMESPECSUB
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#define timespecadd(tsp, usp, vsp) \
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do { \
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(vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \
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(vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \
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if ((vsp)->tv_nsec >= 1000000000L) { \
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(vsp)->tv_sec++; \
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(vsp)->tv_nsec -= 1000000000L; \
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} \
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} while (0)
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#define timespecsub(tsp, usp, vsp) \
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do { \
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(vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \
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(vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \
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if ((vsp)->tv_nsec < 0) { \
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(vsp)->tv_sec--; \
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(vsp)->tv_nsec += 1000000000L; \
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} \
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} while (0)
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#define timespeccmp(tsp, usp, cmp) \
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(((tsp)->tv_sec == (usp)->tv_sec) ? \
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((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
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((tsp)->tv_sec cmp (usp)->tv_sec))
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#endif
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#endif /* _COMPAT_TIME_H */
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