45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
/*
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* $QNXLicenseC:
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* Copyright 2007, QNX Software Systems. All Rights Reserved.
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*
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* You must obtain a written license from and pay applicable license fees to QNX
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* Software Systems before you may reproduce, modify or distribute this software,
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* or any work that includes all or part of this software. Free development
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* licenses are available for evaluation and non-commercial purposes. For more
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* information visit http://licensing.qnx.com or email licensing@qnx.com.
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*
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* This file may contain contributions from others. Please review this entire
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* file for other proprietary rights or license notices, as well as the QNX
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* Development Suite License Guide at http://licensing.qnx.com/license-guide/
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* for other information.
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* $
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*/
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#include <time.h>
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#include <errno.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <sys/neutrino.h>
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clock_t clock(void) {
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uint64_t t;
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uint64_t res;
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if(ClockTime_r(CLOCK_PROCESS_CPUTIME_ID, 0, &t) != EOK) {
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return (clock_t)-1;
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}
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res = t / ((uint64_t)1000000000 / CLOCKS_PER_SEC);
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if(res > (clock_t)ULONGLONG_MAX) {
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// Not representable
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return (clock_t)-1;
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}
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return res;
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}
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__SRCVERSION("clock.c $Rev: 153052 $");
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