This patch is the initial push to update Asterisk's CDR engine for the new bridging framework. This patch guts the existing CDR engine and builds the new on top of messages coming across Stasis. As changes in channel state and bridge state are detected, CDRs are built and dispatched accordingly. This fundamentally changes CDRs in a few ways. (1) CDRs are now *very* reflective of the actual state of channels and bridges. This means CDRs track well with what an actual channel is doing - which is useful in transfer scenarios (which were previously difficult to pin down). It does, however, mean that CDRs cannot be 'fooled'. Previous behavior in Asterisk allowed for CDR applications, channels, and other properties to be spoofed in parts of the code - this no longer works. (2) CDRs have defined behavior in multi-party scenarios. This behavior will not be what everyone wants, but it is a defined behavior and as such, it is predictable. (3) The CDR manipulation functions and applications have been overhauled. Major changes have been made to ResetCDR and ForkCDR in particular. Many of the options for these two applications no longer made any sense with the new framework and the (slightly) more immutable nature of CDRs. There are a plethora of other changes. For a full description of CDR behavior, see the CDR specification on the Asterisk wiki. (closes issue ASTERISK-21196) Review: https://reviewboard.asterisk.org/r/2486/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@391947 65c4cc65-6c06-0410-ace0-fbb531ad65f3
205 lines
5.2 KiB
C
205 lines
5.2 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 1999 - 2005, Digium, Inc.
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*
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* Mark Spencer <markster@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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* \brief Time-related functions and macros
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*/
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#ifndef _ASTERISK_TIME_H
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#define _ASTERISK_TIME_H
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#include "asterisk/inline_api.h"
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/* We have to let the compiler learn what types to use for the elements of a
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struct timeval since on linux, it's time_t and suseconds_t, but on *BSD,
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they are just a long. */
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extern struct timeval tv;
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typedef typeof(tv.tv_sec) ast_time_t;
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typedef typeof(tv.tv_usec) ast_suseconds_t;
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/*!
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* \brief Computes the difference (in seconds) between two \c struct \c timeval instances.
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* \param end the end of the time period
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* \param start the beginning of the time period
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* \return the difference in seconds
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*/
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AST_INLINE_API(
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int64_t ast_tvdiff_sec(struct timeval end, struct timeval start),
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{
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int64_t result = end.tv_sec - start.tv_sec;
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if (result > 0 && end.tv_usec < start.tv_usec)
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result--;
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else if (result < 0 && end.tv_usec > start.tv_usec)
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result++;
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return result;
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}
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)
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/*!
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* \brief Computes the difference (in microseconds) between two \c struct \c timeval instances.
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* \param end the end of the time period
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* \param start the beginning of the time period
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* \return the difference in microseconds
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*/
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AST_INLINE_API(
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int64_t ast_tvdiff_us(struct timeval end, struct timeval start),
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{
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return (end.tv_sec - start.tv_sec) * (int64_t) 1000000 +
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end.tv_usec - start.tv_usec;
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}
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)
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/*!
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* \brief Computes the difference (in milliseconds) between two \c struct \c timeval instances.
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* \param end end of the time period
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* \param start beginning of the time period
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* \return the difference in milliseconds
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*/
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AST_INLINE_API(
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int64_t ast_tvdiff_ms(struct timeval end, struct timeval start),
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{
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/* the offset by 1,000,000 below is intentional...
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it avoids differences in the way that division
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is handled for positive and negative numbers, by ensuring
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that the divisor is always positive
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*/
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int64_t sec_dif = (int64_t)(end.tv_sec - start.tv_sec) * 1000;
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int64_t usec_dif = (1000000 + end.tv_usec - start.tv_usec) / 1000 - 1000;
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return sec_dif + usec_dif;
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}
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)
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/*!
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* \brief Returns true if the argument is 0,0
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*/
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AST_INLINE_API(
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int ast_tvzero(const struct timeval t),
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{
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return (t.tv_sec == 0 && t.tv_usec == 0);
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}
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)
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/*!
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* \brief Compres two \c struct \c timeval instances returning
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* -1, 0, 1 if the first arg is smaller, equal or greater to the second.
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*/
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AST_INLINE_API(
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int ast_tvcmp(struct timeval _a, struct timeval _b),
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{
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if (_a.tv_sec < _b.tv_sec)
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return -1;
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if (_a.tv_sec > _b.tv_sec)
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return 1;
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/* now seconds are equal */
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if (_a.tv_usec < _b.tv_usec)
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return -1;
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if (_a.tv_usec > _b.tv_usec)
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return 1;
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return 0;
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}
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)
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/*!
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* \brief Returns true if the two \c struct \c timeval arguments are equal.
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*/
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AST_INLINE_API(
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int ast_tveq(struct timeval _a, struct timeval _b),
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{
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return (_a.tv_sec == _b.tv_sec && _a.tv_usec == _b.tv_usec);
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}
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)
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/*!
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* \brief Returns current timeval. Meant to replace calls to gettimeofday().
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*/
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AST_INLINE_API(
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struct timeval ast_tvnow(void),
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{
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struct timeval t;
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gettimeofday(&t, NULL);
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return t;
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}
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)
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/*!
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* \brief Returns the sum of two timevals a + b
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*/
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struct timeval ast_tvadd(struct timeval a, struct timeval b);
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/*!
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* \brief Returns the difference of two timevals a - b
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*/
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struct timeval ast_tvsub(struct timeval a, struct timeval b);
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/*!
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* \since 12
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* \brief Formats a duration into HH:MM:SS
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*
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* \param duration The time (in seconds) to format
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* \param buf A buffer to hold the formatted string'
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* \param length The size of the buffer
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*/
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void ast_format_duration_hh_mm_ss(int duration, char *buf, size_t length);
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/*!
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* \brief Calculate remaining milliseconds given a starting timestamp
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* and upper bound
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*
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* If the upper bound is negative, then this indicates that there is no
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* upper bound on the amount of time to wait. This will result in a
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* negative return.
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*
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* \param start When timing started being calculated
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* \param max_ms The maximum number of milliseconds to wait from start. May be negative.
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* \return The number of milliseconds left to wait for. May be negative.
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*/
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int ast_remaining_ms(struct timeval start, int max_ms);
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/*!
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* \brief Returns a timeval from sec, usec
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*/
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AST_INLINE_API(
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struct timeval ast_tv(ast_time_t sec, ast_suseconds_t usec),
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{
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struct timeval t;
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t.tv_sec = sec;
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t.tv_usec = usec;
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return t;
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}
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)
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/*!
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* \brief Returns a timeval corresponding to the duration of n samples at rate r.
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* Useful to convert samples to timevals, or even milliseconds to timevals
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* in the form ast_samp2tv(milliseconds, 1000)
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*/
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AST_INLINE_API(
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struct timeval ast_samp2tv(unsigned int _nsamp, unsigned int _rate),
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{
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return ast_tv(_nsamp / _rate, (_nsamp % _rate) * (1000000 / (float) _rate));
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}
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)
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#endif /* _ASTERISK_TIME_H */
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