75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/* Copyright libuv project contributors. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "uv.h"
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#include "internal.h"
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#if defined(__APPLE__)
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/* Special case for CMake bootstrap: no clock_gettime on macOS < 10.12 */
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#ifndef CMAKE_BOOTSTRAP
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#error "This code path meant only for use during CMake bootstrap."
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#endif
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#include <mach/mach.h>
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#include <mach/mach_time.h>
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uint64_t uv__hrtime(uv_clocktype_t type) {
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static mach_timebase_info_data_t info;
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if ((ACCESS_ONCE(uint32_t, info.numer) == 0 ||
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ACCESS_ONCE(uint32_t, info.denom) == 0) &&
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mach_timebase_info(&info) != KERN_SUCCESS)
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abort();
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return mach_absolute_time() * info.numer / info.denom;
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}
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#elif defined(__hpux)
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/* Special case for CMake bootstrap: no CLOCK_MONOTONIC on HP-UX */
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#ifndef CMAKE_BOOTSTRAP
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#error "This code path meant only for use during CMake bootstrap."
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#endif
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#include <stdint.h>
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#include <time.h>
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uint64_t uv__hrtime(uv_clocktype_t type) {
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return (uint64_t) gethrtime();
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}
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#else
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#include <stdint.h>
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#include <time.h>
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#undef NANOSEC
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#define NANOSEC ((uint64_t) 1e9)
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uint64_t uv__hrtime(uv_clocktype_t type) {
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return (((uint64_t) ts.tv_sec) * NANOSEC + ts.tv_nsec);
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}
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#endif
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