90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright © The PHP Group and Contributors. |
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+----------------------------------------------------------------------+
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| This source file is subject to the Modified BSD License that is |
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| bundled with this package in the file LICENSE, and is available |
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| through the World Wide Web at <https://www.php.net/license/>. |
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| |
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| SPDX-License-Identifier: BSD-3-Clause |
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+----------------------------------------------------------------------+
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| Author: Niklas Keller <kelunik@php.net> |
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| Author: Anatol Belski <ab@php.net> |
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+----------------------------------------------------------------------+
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*/
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#include "zend.h"
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#include "zend_hrtime.h"
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/* This file reuses code parts from the cross-platform timer library
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Public Domain - 2011 Mattias Jansson / Rampant Pixels */
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#if ZEND_HRTIME_PLATFORM_POSIX
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# include <unistd.h>
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# include <time.h>
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# include <string.h>
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ZEND_API clockid_t zend_hrtime_posix_clock_id = CLOCK_MONOTONIC;
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#elif ZEND_HRTIME_PLATFORM_WINDOWS
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# define WIN32_LEAN_AND_MEAN
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ZEND_API double zend_hrtime_timer_scale = .0;
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#elif ZEND_HRTIME_PLATFORM_APPLE_MACH_ABSOLUTE
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# include <mach/mach_time.h>
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# include <string.h>
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ZEND_API mach_timebase_info_data_t zend_hrtime_timerlib_info = {
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.numer = 0,
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.denom = 1,
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};
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#elif ZEND_HRTIME_PLATFORM_HPUX
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# include <sys/time.h>
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#elif ZEND_HRTIME_PLATFORM_AIX
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# include <sys/time.h>
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# include <sys/systemcfg.h>
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#endif
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void zend_startup_hrtime(void)
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{
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#if ZEND_HRTIME_PLATFORM_WINDOWS
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LARGE_INTEGER tf = {0};
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if (QueryPerformanceFrequency(&tf) || 0 != tf.QuadPart) {
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zend_hrtime_timer_scale = (double)ZEND_NANO_IN_SEC / (zend_hrtime_t)tf.QuadPart;
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}
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#elif ZEND_HRTIME_PLATFORM_APPLE_MACH_ABSOLUTE
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mach_timebase_info(&zend_hrtime_timerlib_info);
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#elif ZEND_HRTIME_PLATFORM_POSIX
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struct timespec ts;
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#ifdef CLOCK_MONOTONIC_RAW
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if (EXPECTED(0 == clock_gettime(CLOCK_MONOTONIC_RAW, &ts))) {
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zend_hrtime_posix_clock_id = CLOCK_MONOTONIC_RAW;
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return;
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}
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#endif
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if (EXPECTED(0 == clock_gettime(zend_hrtime_posix_clock_id, &ts))) {
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return;
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}
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// zend_error mechanism is not initialized at that point
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fprintf(stderr, "No working CLOCK_MONOTONIC* found, this should never happen\n");
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abort();
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#endif
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}
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