mirror of
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72c0deb400
This reverts commit a3e55286a6.
This commit broke the build for OSX before Sierra.
The apple documentation states the equivalent uses raw uptime, and
the source code of the non portable function says raw uptime would
call the same routine we were calling before this commit.
Since the correct version of this commit - according to docs -
would bring no value whatsoever, and this version breaks the build
there doesn't seem any sense in making this change.
192 lines
4.9 KiB
C
192 lines
4.9 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright (c) The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| https://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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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 "php.h"
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#include "hrtime.h"
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/* {{{ */
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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 PHP_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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#elif PHP_HRTIME_PLATFORM_WINDOWS
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# define WIN32_LEAN_AND_MEAN
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static double _timer_scale = .0;
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#elif PHP_HRTIME_PLATFORM_APPLE
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# include <mach/mach_time.h>
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# include <string.h>
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static mach_timebase_info_data_t _timerlib_info;
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#elif PHP_HRTIME_PLATFORM_HPUX
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# include <sys/time.h>
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#elif PHP_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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#define NANO_IN_SEC 1000000000
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/* }}} */
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static int _timer_init(void)
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{/*{{{*/
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#if PHP_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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return -1;
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}
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_timer_scale = (double)NANO_IN_SEC / (php_hrtime_t)tf.QuadPart;
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#elif PHP_HRTIME_PLATFORM_APPLE
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if (mach_timebase_info(&_timerlib_info)) {
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return -1;
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}
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#elif PHP_HRTIME_PLATFORM_POSIX
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#if !_POSIX_MONOTONIC_CLOCK
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#ifdef _SC_MONOTONIC_CLOCK
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if (0 >= sysconf(_SC_MONOTONIC_CLOCK)) {
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return -1;
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}
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#endif
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#endif
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#elif PHP_HRTIME_PLATFORM_HPUX
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/* pass */
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#elif PHP_HRTIME_PLATFORM_AIX
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/* pass */
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#else
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/* Timer unavailable. */
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return -1;
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#endif
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return 0;
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}/*}}}*/
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/* {{{ */
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PHP_MINIT_FUNCTION(hrtime)
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{
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if (0 > _timer_init()) {
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php_error_docref(NULL, E_WARNING, "Failed to initialize high-resolution timer");
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return FAILURE;
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}
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return SUCCESS;
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}
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/* }}} */
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static zend_always_inline php_hrtime_t _timer_current(void)
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{/*{{{*/
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#if PHP_HRTIME_PLATFORM_WINDOWS
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LARGE_INTEGER lt = {0};
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QueryPerformanceCounter(<);
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return (php_hrtime_t)((php_hrtime_t)lt.QuadPart * _timer_scale);
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#elif PHP_HRTIME_PLATFORM_APPLE
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return (php_hrtime_t)mach_absolute_time() * _timerlib_info.numer / _timerlib_info.denom;
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#elif PHP_HRTIME_PLATFORM_POSIX
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struct timespec ts = { .tv_sec = 0, .tv_nsec = 0 };
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if (0 == clock_gettime(CLOCK_MONOTONIC, &ts)) {
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return ((php_hrtime_t) ts.tv_sec * (php_hrtime_t)NANO_IN_SEC) + ts.tv_nsec;
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}
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return 0;
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#elif PHP_HRTIME_PLATFORM_HPUX
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return (php_hrtime_t) gethrtime();
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#elif PHP_HRTIME_PLATFORM_AIX
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timebasestruct_t t;
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read_wall_time(&t, TIMEBASE_SZ);
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time_base_to_time(&t, TIMEBASE_SZ);
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return (php_hrtime_t) t.tb_high * (php_hrtime_t)NANO_IN_SEC + t.tb_low;
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#else
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return 0;
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#endif
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}/*}}}*/
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#if ZEND_ENABLE_ZVAL_LONG64
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#define PHP_RETURN_HRTIME(t) RETURN_LONG((zend_long)t)
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#else
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#ifdef _WIN32
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# define HRTIME_U64A(i, s, len) _ui64toa_s(i, s, len, 10)
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#else
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# define HRTIME_U64A(i, s, len) \
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do { \
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int st = snprintf(s, len, "%llu", i); \
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s[st] = '\0'; \
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} while (0)
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#endif
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#define PHP_RETURN_HRTIME(t) do { \
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char _a[ZEND_LTOA_BUF_LEN]; \
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double _d; \
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HRTIME_U64A(t, _a, ZEND_LTOA_BUF_LEN); \
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_d = zend_strtod(_a, NULL); \
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RETURN_DOUBLE(_d); \
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} while (0)
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#endif
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/* {{{ Returns an array of integers in form [seconds, nanoseconds] counted
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from an arbitrary point in time. If an optional boolean argument is
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passed, returns an integer on 64-bit platforms or float on 32-bit
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containing the current high-resolution time in nanoseconds. The
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delivered timestamp is monotonic and can not be adjusted. */
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PHP_FUNCTION(hrtime)
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{
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#if HRTIME_AVAILABLE
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bool get_as_num = 0;
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php_hrtime_t t = _timer_current();
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ZEND_PARSE_PARAMETERS_START(0, 1)
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Z_PARAM_OPTIONAL
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Z_PARAM_BOOL(get_as_num)
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ZEND_PARSE_PARAMETERS_END();
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if (UNEXPECTED(get_as_num)) {
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PHP_RETURN_HRTIME(t);
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} else {
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array_init_size(return_value, 2);
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zend_hash_real_init_packed(Z_ARRVAL_P(return_value));
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add_next_index_long(return_value, (zend_long)(t / (php_hrtime_t)NANO_IN_SEC));
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add_next_index_long(return_value, (zend_long)(t % (php_hrtime_t)NANO_IN_SEC));
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}
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#else
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RETURN_FALSE;
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#endif
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}
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/* }}} */
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PHPAPI php_hrtime_t php_hrtime_current(void)
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{/*{{{*/
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return _timer_current();
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}/*}}}*/
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