/*

   +----------------------------------------------------------------------+

   | Copyright © The PHP Group and Contributors.                          |

   +----------------------------------------------------------------------+

   | This source file is subject to the Modified BSD License that is      |

   | bundled with this package in the file LICENSE, and is available      |

   | through the World Wide Web at <https://www.php.net/license/>.        |

   |                                                                      |

   | SPDX-License-Identifier: BSD-3-Clause                                |

   +----------------------------------------------------------------------+

   | 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 */

/* }}} */