80 lines
2.9 KiB
C
80 lines
2.9 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2010, Digium, Inc.
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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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/*!
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* \file
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* \brief sip dialog management header file
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*/
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#include "sip.h"
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#ifndef _SIP_DIALOG_H
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#define _SIP_DIALOG_H
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/*! \brief
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* when we create or delete references, make sure to use these
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* functions so we keep track of the refcounts.
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* To simplify the code, we allow a NULL to be passed to dialog_unref().
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*/
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#define dialog_ref(arg1,arg2) dialog_ref_debug((arg1),(arg2), __FILE__, __LINE__, __PRETTY_FUNCTION__)
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#define dialog_unref(arg1,arg2) dialog_unref_debug((arg1),(arg2), __FILE__, __LINE__, __PRETTY_FUNCTION__)
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struct sip_pvt *dialog_ref_debug(struct sip_pvt *p, const char *tag, char *file, int line, const char *func);
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struct sip_pvt *dialog_unref_debug(struct sip_pvt *p, const char *tag, char *file, int line, const char *func);
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struct sip_pvt *sip_alloc(ast_string_field callid, struct ast_sockaddr *sin,
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int useglobal_nat, const int intended_method, struct sip_request *req, struct ast_callid *logger_callid);
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void sip_scheddestroy_final(struct sip_pvt *p, int ms);
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void sip_scheddestroy(struct sip_pvt *p, int ms);
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int sip_cancel_destroy(struct sip_pvt *p);
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/*! \brief Destroy SIP call structure.
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* Make it return NULL so the caller can do things like
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* foo = sip_destroy(foo);
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* and reduce the chance of bugs due to dangling pointers.
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*/
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struct sip_pvt *sip_destroy(struct sip_pvt *p);
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/*! \brief Destroy SIP call structure.
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* Make it return NULL so the caller can do things like
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* foo = sip_destroy(foo);
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* and reduce the chance of bugs due to dangling pointers.
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*/
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void __sip_destroy(struct sip_pvt *p, int lockowner, int lockdialoglist);
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/*!
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* \brief Unlink a dialog from the dialogs container, as well as any other places
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* that it may be currently stored.
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*
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* \note A reference to the dialog must be held before calling
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* this function, and this function does not release that
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* reference.
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*
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* \note The dialog must not be locked when called.
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*/
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void dialog_unlink_all(struct sip_pvt *dialog);
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/*! \brief Acknowledges receipt of a packet and stops retransmission
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* called with p locked*/
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int __sip_ack(struct sip_pvt *p, uint32_t seqno, int resp, int sipmethod);
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/*! \brief Pretend to ack all packets
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* called with p locked */
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void __sip_pretend_ack(struct sip_pvt *p);
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/*! \brief Acks receipt of packet, keep it around (used for provisional responses) */
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int __sip_semi_ack(struct sip_pvt *p, uint32_t seqno, int resp, int sipmethod);
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#endif /* defined(_SIP_DIALOG_H) */
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