/*

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

   | 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: Niklas Keller <kelunik@php.net>                              |

   | Author: Anatol Belski <ab@php.net>                                   |

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

 */

#include "php.h"

#include "zend_hrtime.h"

#ifdef ZEND_ENABLE_ZVAL_LONG64

#define PHP_RETURN_HRTIME(t) RETURN_LONG((zend_long)t)

#else

#ifdef _WIN32

# define HRTIME_U64A(i, s, len) _ui64toa_s(i, s, len, 10)

#else

# define HRTIME_U64A(i, s, len) \

  do { \

    int st = snprintf(s, len, "%llu", i); \

    s[st] = '\0'; \

  } while (0)

#endif

#define PHP_RETURN_HRTIME(t) do { \

  char _a[65]; \

  double _d; \

  HRTIME_U64A(t, _a, sizeof(_a)); \

  _d = zend_strtod(_a, NULL); \

  RETURN_DOUBLE(_d); \

  } while (0)

#endif

/* {{{ Returns an array of integers in form [seconds, nanoseconds] counted

  from an arbitrary point in time. If an optional boolean argument is

  passed, returns an integer on 64-bit platforms or float on 32-bit

  containing the current high-resolution time in nanoseconds. The

  delivered timestamp is monotonic and cannot be adjusted. */

PHP_FUNCTION(hrtime)

{

  bool get_as_num = 0;

  zend_hrtime_t t = zend_hrtime();

  ZEND_PARSE_PARAMETERS_START(0, 1)

    Z_PARAM_OPTIONAL

    Z_PARAM_BOOL(get_as_num)

  ZEND_PARSE_PARAMETERS_END();

#if ZEND_HRTIME_AVAILABLE

  if (UNEXPECTED(get_as_num)) {

    PHP_RETURN_HRTIME(t);

  } else {

    zval first, second;

    ZVAL_LONG(&first, (zend_long)(t / (zend_hrtime_t)ZEND_NANO_IN_SEC));

    ZVAL_LONG(&second, (zend_long)(t % (zend_hrtime_t)ZEND_NANO_IN_SEC));

    RETURN_ARR(zend_new_pair(&first, &second));

  }

#else

  RETURN_FALSE;

#endif

}

/* }}} */