73ef4ff3
 Hu Chunming
提交三方库
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/**
* @ingroup libosip2 The GNU oSIP stack
* @defgroup howto_initialize How-To initialize libosip2.
* @section howto_initialize1 Initialize osip.
When using osip, your first task is to initialize
the parser and the state machine. This must be done
prior to any use of libosip2.
~~~~~~~{.c}
#include <osip2/osip.h>
int i;
osip_t *osip;
i=osip_init(&osip);
if (i!=0)
return -1;
~~~~~~~
In case you want to use the state machines (transaction management),
the second step will be to set a few callbacks which will inform
you of any change in the state of a SIP transaction.
Most of the following callbacks are optional. The following ones are
usefull.
~~~~~~~{.c}
// callback called when a SIP message must be sent.
osip_set_cb_send_message(osip, &cb_udp_snd_message);
// callback called when a SIP transaction is TERMINATED.
osip_set_kill_transaction_callback(osip ,OSIP_ICT_KILL_TRANSACTION,
&cb_ict_kill_transaction);
osip_set_kill_transaction_callback(osip ,OSIP_IST_KILL_TRANSACTION,
&cb_ist_kill_transaction);
osip_set_kill_transaction_callback(osip ,OSIP_NICT_KILL_TRANSACTION,
&cb_nict_kill_transaction);
osip_set_kill_transaction_callback(osip ,OSIP_NIST_KILL_TRANSACTION,
&cb_nist_kill_transaction);
// callback called when the callback to send message have failed.
osip_set_transport_error_callback(osip ,OSIP_ICT_TRANSPORT_ERROR,
&cb_transport_error);
osip_set_transport_error_callback(osip ,OSIP_IST_TRANSPORT_ERROR,
&cb_transport_error);
osip_set_transport_error_callback(osip ,OSIP_NICT_TRANSPORT_ERROR,
&cb_transport_error);
osip_set_transport_error_callback(osip ,OSIP_NIST_TRANSPORT_ERROR,
&cb_transport_error);
// callback called when a received answer has been accepted by the transaction.
osip_set_message_callback(osip ,OSIP_ICT_STATUS_1XX_RECEIVED, &cb_rcv1xx);
osip_set_message_callback(osip ,OSIP_ICT_STATUS_2XX_RECEIVED, &cb_rcv2xx);
osip_set_message_callback(osip ,OSIP_ICT_STATUS_3XX_RECEIVED, &cb_rcv3456xx);
osip_set_message_callback(osip ,OSIP_ICT_STATUS_4XX_RECEIVED, &cb_rcv3456xx);
osip_set_message_callback(osip ,OSIP_ICT_STATUS_5XX_RECEIVED, &cb_rcv3456xx);
osip_set_message_callback(osip ,OSIP_ICT_STATUS_6XX_RECEIVED, &cb_rcv3456xx);
// callback called when a received answer has been accepted by the transaction.
osip_set_message_callback(osip ,OSIP_NICT_STATUS_1XX_RECEIVED, &cb_rcv1xx);
osip_set_message_callback(osip ,OSIP_NICT_STATUS_2XX_RECEIVED, &cb_rcv2xx);
osip_set_message_callback(osip ,OSIP_NICT_STATUS_3XX_RECEIVED, &cb_rcv3456xx);
osip_set_message_callback(osip ,OSIP_NICT_STATUS_4XX_RECEIVED, &cb_rcv3456xx);
osip_set_message_callback(osip ,OSIP_NICT_STATUS_5XX_RECEIVED, &cb_rcv3456xx);
osip_set_message_callback(osip ,OSIP_NICT_STATUS_6XX_RECEIVED, &cb_rcv3456xx);
// callback called when a received request has been accepted by the transaction.
osip_set_message_callback(osip ,OSIP_IST_INVITE_RECEIVED, &cb_rcvreq);
osip_set_message_callback(osip ,OSIP_IST_ACK_RECEIVED, &cb_rcvreq);
osip_set_message_callback(osip ,OSIP_NIST_REGISTER_RECEIVED, &cb_rcvreq);
osip_set_message_callback(osip ,OSIP_NIST_BYE_RECEIVED, &cb_rcvreq);
osip_set_message_callback(osip ,OSIP_NIST_CANCEL_RECEIVED, &cb_rcvreq);
osip_set_message_callback(osip ,OSIP_NIST_INFO_RECEIVED, &cb_rcvreq);
osip_set_message_callback(osip ,OSIP_NIST_OPTIONS_RECEIVED, &cb_rcvreq);
osip_set_message_callback(osip ,OSIP_NIST_SUBSCRIBE_RECEIVED, &cb_rcvreq);
osip_set_message_callback(osip ,OSIP_NIST_NOTIFY_RECEIVED, &cb_rcvreq);
osip_set_message_callback(osip ,OSIP_NIST_UNKNOWN_REQUEST_RECEIVED, &cb_rcvreq);
// other callbacks exists... They are optionnal.
~~~~~~~
*/
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