mirror of https://gitee.com/bigwinds/arangodb
61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
/*
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* From: https://github.com/tarantool/tarantool/tree/1.7/third_party
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY <COPYRIGHT HOLDER> ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* <COPYRIGHT HOLDER> OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/time.h>
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#include <time.h>
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#include <cstdint>
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extern "C" {
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int clock_gettime(clockid_t clock_id, struct timespec* tp) {
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tp->tv_nsec = 0;
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tp->tv_sec = 0;
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uint64_t tk;
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struct timeval tv;
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switch (clock_id) {
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case CLOCK_REALTIME:
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case CLOCK_MONOTONIC:
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gettimeofday(&tv, 0);
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tp->tv_sec = tv.tv_sec;
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tp->tv_nsec = tv.tv_usec * 1000;
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break;
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case CLOCK_PROCESS_CPUTIME_ID:
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case CLOCK_THREAD_CPUTIME_ID:
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tk = clock();
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tp->tv_sec = tk / CLOCKS_PER_SEC;
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tp->tv_nsec = (tk % CLOCKS_PER_SEC) * (1000000000 / CLOCKS_PER_SEC);
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break;
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default:
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return 0;
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}
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return 0;
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}
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}
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