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-rw-r--r--1.4.23-rc4/include/asterisk/time.h144
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diff --git a/1.4.23-rc4/include/asterisk/time.h b/1.4.23-rc4/include/asterisk/time.h
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--- a/1.4.23-rc4/include/asterisk/time.h
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-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2005, Digium, Inc.
- *
- * Mark Spencer <markster@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*! \file
- * \brief Time-related functions and macros
- */
-
-#ifndef _ASTERISK_TIME_H
-#define _ASTERISK_TIME_H
-
-#include <sys/time.h>
-#include <stdlib.h>
-
-#include "asterisk/inline_api.h"
-
-/* We have to let the compiler learn what types to use for the elements of a
- struct timeval since on linux, it's time_t and suseconds_t, but on *BSD,
- they are just a long. */
-extern struct timeval tv;
-typedef typeof(tv.tv_sec) ast_time_t;
-typedef typeof(tv.tv_usec) ast_suseconds_t;
-
-/*!
- * \brief Computes the difference (in milliseconds) between two \c struct \c timeval instances.
- * \param end end of the time period
- * \param start beginning of the time period
- * \return the difference in milliseconds
- */
-AST_INLINE_API(
-int ast_tvdiff_ms(struct timeval end, struct timeval start),
-{
- /* the offset by 1,000,000 below is intentional...
- it avoids differences in the way that division
- is handled for positive and negative numbers, by ensuring
- that the divisor is always positive
- */
- return ((end.tv_sec - start.tv_sec) * 1000) +
- (((1000000 + end.tv_usec - start.tv_usec) / 1000) - 1000);
-}
-)
-
-/*!
- * \brief Returns true if the argument is 0,0
- */
-AST_INLINE_API(
-int ast_tvzero(const struct timeval t),
-{
- return (t.tv_sec == 0 && t.tv_usec == 0);
-}
-)
-
-/*!
- * \brief Compres two \c struct \c timeval instances returning
- * -1, 0, 1 if the first arg is smaller, equal or greater to the second.
- */
-AST_INLINE_API(
-int ast_tvcmp(struct timeval _a, struct timeval _b),
-{
- if (_a.tv_sec < _b.tv_sec)
- return -1;
- if (_a.tv_sec > _b.tv_sec)
- return 1;
- /* now seconds are equal */
- if (_a.tv_usec < _b.tv_usec)
- return -1;
- if (_a.tv_usec > _b.tv_usec)
- return 1;
- return 0;
-}
-)
-
-/*!
- * \brief Returns true if the two \c struct \c timeval arguments are equal.
- */
-AST_INLINE_API(
-int ast_tveq(struct timeval _a, struct timeval _b),
-{
- return (_a.tv_sec == _b.tv_sec && _a.tv_usec == _b.tv_usec);
-}
-)
-
-/*!
- * \brief Returns current timeval. Meant to replace calls to gettimeofday().
- */
-AST_INLINE_API(
-struct timeval ast_tvnow(void),
-{
- struct timeval t;
- gettimeofday(&t, NULL);
- return t;
-}
-)
-
-/*!
- * \brief Returns the sum of two timevals a + b
- */
-struct timeval ast_tvadd(struct timeval a, struct timeval b);
-
-/*!
- * \brief Returns the difference of two timevals a - b
- */
-struct timeval ast_tvsub(struct timeval a, struct timeval b);
-
-/*!
- * \brief Returns a timeval from sec, usec
- */
-AST_INLINE_API(
-struct timeval ast_tv(ast_time_t sec, ast_suseconds_t usec),
-{
- struct timeval t;
- t.tv_sec = sec;
- t.tv_usec = usec;
- return t;
-}
-)
-
-/*!
- * \brief Returns a timeval corresponding to the duration of n samples at rate r.
- * Useful to convert samples to timevals, or even milliseconds to timevals
- * in the form ast_samp2tv(milliseconds, 1000)
- */
-AST_INLINE_API(
-struct timeval ast_samp2tv(unsigned int _nsamp, unsigned int _rate),
-{
- return ast_tv(_nsamp / _rate, (_nsamp % _rate) * (1000000 / _rate));
-}
-)
-
-#endif /* _ASTERISK_TIME_H */