microtime.c

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/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Paul Panotzki - Bunyip Information Systems                   |
   +----------------------------------------------------------------------+
 */
 
#include "php.h"
 
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef PHP_WIN32
#include "win32/time.h"
#include "win32/getrusage.h"
#else
#include <sys/time.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
 
#include "ext/date/php_date.h"
 
#define NUL  '\0'
#define MICRO_IN_SEC 1000000.00
#define SEC_IN_MIN 60
 
#ifdef HAVE_GETTIMEOFDAY
static void _php_gettimeofday(INTERNAL_FUNCTION_PARAMETERS, int mode)
{
    bool get_as_float = 0;
    struct timeval tp = {0};
 
    ZEND_PARSE_PARAMETERS_START(0, 1)
        Z_PARAM_OPTIONAL
        Z_PARAM_BOOL(get_as_float)
    ZEND_PARSE_PARAMETERS_END();
 
    if (gettimeofday(&tp, NULL)) {
        ZEND_ASSERT(0 && "gettimeofday() can't fail");
    }
 
    if (get_as_float) {
        RETURN_DOUBLE((double)(tp.tv_sec + tp.tv_usec / MICRO_IN_SEC));
    }
 
    if (mode) {
        timelib_time_offset *offset;
 
        offset = timelib_get_time_zone_info(tp.tv_sec, get_timezone_info());
 
        array_init(return_value);
        add_assoc_long(return_value, "sec", tp.tv_sec);
        add_assoc_long(return_value, "usec", tp.tv_usec);
 
        add_assoc_long(return_value, "minuteswest", -offset->offset / SEC_IN_MIN);
        add_assoc_long(return_value, "dsttime", offset->is_dst);
 
        timelib_time_offset_dtor(offset);
    } else {
        RETURN_NEW_STR(zend_strpprintf(0, "%.8F %ld", tp.tv_usec / MICRO_IN_SEC, (long)tp.tv_sec));
    }
}
 
/* {{{ Returns either a string or a float containing the current time in seconds and microseconds */
PHP_FUNCTION(microtime)
{
    _php_gettimeofday(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
 
/* {{{ Returns the current time as array */
PHP_FUNCTION(gettimeofday)
{
    _php_gettimeofday(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
#endif
/* }}} */
 
#ifdef HAVE_GETRUSAGE
/* {{{ Returns an array of usage statistics */
PHP_FUNCTION(getrusage)
{
    struct rusage usg;
    zend_long pwho = 0;
    int who = RUSAGE_SELF;
 
    ZEND_PARSE_PARAMETERS_START(0, 1)
        Z_PARAM_OPTIONAL
        Z_PARAM_LONG(pwho)
    ZEND_PARSE_PARAMETERS_END();
 
    if (pwho == 1) {
        who = RUSAGE_CHILDREN;
    }
 
    memset(&usg, 0, sizeof(struct rusage));
 
    if (getrusage(who, &usg) == -1) {
        RETURN_FALSE;
    }
 
    array_init(return_value);
 
#define PHP_RUSAGE_PARA(a) \
        add_assoc_long(return_value, #a, usg.a)
 
#ifdef PHP_WIN32 /* Windows only implements a limited amount of fields from the rusage struct */
    PHP_RUSAGE_PARA(ru_majflt);
    PHP_RUSAGE_PARA(ru_maxrss);
#elif !defined(_OSD_POSIX) && !defined(__HAIKU__)
    PHP_RUSAGE_PARA(ru_oublock);
    PHP_RUSAGE_PARA(ru_inblock);
    PHP_RUSAGE_PARA(ru_msgsnd);
    PHP_RUSAGE_PARA(ru_msgrcv);
    PHP_RUSAGE_PARA(ru_maxrss);
    PHP_RUSAGE_PARA(ru_ixrss);
    PHP_RUSAGE_PARA(ru_idrss);
    PHP_RUSAGE_PARA(ru_minflt);
    PHP_RUSAGE_PARA(ru_majflt);
    PHP_RUSAGE_PARA(ru_nsignals);
    PHP_RUSAGE_PARA(ru_nvcsw);
    PHP_RUSAGE_PARA(ru_nivcsw);
    PHP_RUSAGE_PARA(ru_nswap);
#endif /*_OSD_POSIX*/
    PHP_RUSAGE_PARA(ru_utime.tv_usec);
    PHP_RUSAGE_PARA(ru_utime.tv_sec);
    PHP_RUSAGE_PARA(ru_stime.tv_usec);
    PHP_RUSAGE_PARA(ru_stime.tv_sec);
 
#undef PHP_RUSAGE_PARA
}
#endif /* HAVE_GETRUSAGE */
 
/* }}} */