pjsip-perf.c

一个开源SIP协议栈

/* $Id: pjsip-perf.c 1158 2007-04-06 10:25:23Z bennylp $ */
/* 
 * Copyright (C) 2003-2007 Benny Prijono <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
 */


/**
 * \page page_pjsip_perf_c Samples: SIP Performance Benchmark
 *
 * <b>pjsip-perf</b> is a complete program to measure the
 * performance of PJSIP or other SIP endpoints. It consists of two
 * parts:
 *  - the server, to respond incoming requests, and
 *  - the client, who actively submits requests and measure the
 *     performance of the server.
 *
 * Both server and client part can run simultaneously, to measure the
 * performance when both endpoints are co-located in a single program.
 * 
 * The server accepts both INVITE and non-INVITE requests.
 * The server exports several different types of URL, which would
 * control how the request would be handled by the server:
 *  - URL with "0" as the user part will be handled statelessly.
 *    It should not be used with INVITE method.
 *  - URL with "1" as the user part will be handled statefully.
 *    If the request is an INVITE request, INVITE transaction will
 *    be created and 200/OK response will be sent, along with a valid
 *    SDP body. However, the SDP is just a static text body, and
 *    is not a proper SDP generated by PJMEDIA.
 *  - URL with "2" as the user part is only meaningful for INVITE
 *    requests, as it would be handled <b>call-statefully</b> by the
 *    server. For this URL, the server also would generate SDP dynamically
 *    and perform a proper SDP negotiation for the incoming call.
 *    Also for every call, server will limit the call duration to
 *    10 seconds, on which the call will be terminated if the client
 *    doesn't hangup the call.
 *    
 *
 *
 * This file is pjsip-apps/src/samples/pjsip-perf.c
 *
 * \includelineno pjsip-perf.c
 */

/* Include all headers. */
#include <pjsip.h>
#include <pjmedia.h>
#include <pjmedia-codec.h>
#include <pjsip_ua.h>
#include <pjsip_simple.h>
#include <pjlib-util.h>
#include <pjlib.h>
#include <stdio.h>

#if defined(PJ_WIN32) && PJ_WIN32!=0
#  include <windows.h>
#endif

#define THIS_FILE	    "pjsip-perf.c"
#define DEFAULT_COUNT	    (PJSIP_MAX_TSX_COUNT/2>10000?10000:PJSIP_MAX_TSX_COUNT/2)
#define JOB_WINDOW	    1000
#define TERMINATE_TSX(x,c)


#ifndef CACHING_POOL_SIZE
#   define CACHING_POOL_SIZE   (256*1024*1024)
#endif


/* Static message body for INVITE, when stateful processing is
 * invoked (instead of call-stateful, where SDP is generated
 * dynamically.
 */
static pj_str_t dummy_sdp_str = 
{
    "v=0\r\n"
    "o=- 3360842071 3360842071 IN IP4 192.168.0.68\r\n"
    "s=pjmedia\r\n"
    "c=IN IP4 192.168.0.68\r\n"
    "t=0 0\r\n"
    "m=audio 4000 RTP/AVP 0 8 3 103 102 101\r\n"
    "a=rtcp:4001 IN IP4 192.168.0.68\r\n"
    "a=rtpmap:103 speex/16000\r\n"
    "a=rtpmap:102 speex/8000\r\n"
    "a=rtpmap:3 GSM/8000\r\n"
    "a=rtpmap:0 PCMU/8000\r\n"
    "a=rtpmap:8 PCMA/8000\r\n"
    "a=sendrecv\r\n"
    "a=rtpmap:101 telephone-event/8000\r\n"
    "a=fmtp:101 0-15\r\n",
    0
};

static pj_str_t mime_application = { "application", 11};
static pj_str_t mime_sdp = {"sdp", 3};


struct srv_state
{
    unsigned	    stateless_cnt;
    unsigned	    stateful_cnt;
    unsigned	    call_cnt;
};


struct app
{
    pj_caching_pool	 cp;
    pj_pool_t		*pool;
    pj_bool_t		 use_tcp;
    pj_str_t		 local_addr;
    int			 local_port;
    pjsip_endpoint	*sip_endpt;
    pjmedia_endpt	*med_endpt;
    pj_str_t		 local_uri;
    pj_str_t		 local_contact;
    unsigned		 skinfo_cnt;
    pjmedia_sock_info	 skinfo[8];

    pj_bool_t		 thread_quit;
    unsigned		 thread_count;
    pj_thread_t		*thread[16];

    pj_bool_t		 real_sdp;
    pjmedia_sdp_session *dummy_sdp;

    int			 log_level;

    struct {
	pjsip_method	     method;
	pj_str_t	     dst_uri;
	pj_bool_t	     stateless;
	unsigned	     timeout;
	unsigned	     job_count,
			     job_submitted, 
			     job_finished,
			     job_window;
	unsigned	     stat_max_window;
	pj_time_val	     first_request;
	pj_time_val	     requests_sent;
	pj_time_val	     last_completion;
	unsigned	     total_responses;
	unsigned	     response_codes[800];
    } client;

    struct {
	pj_bool_t send_trying;
	pj_bool_t send_ringing;
	unsigned delay;
	struct srv_state prev_state;
	struct srv_state cur_state;
    } server;


} app;

struct call
{
    pjsip_inv_session	*inv;
    pj_timer_entry	 ans_timer;
};


static void app_perror(const char *sender, const char *title, 
		       pj_status_t status)
{
    char errmsg[PJ_ERR_MSG_SIZE];

    pj_strerror(status, errmsg, sizeof(errmsg));
    PJ_LOG(1,(sender, "%s: %s [code=%d]", title, errmsg, status));
}


/**************************************************************************
 * STATELESS SERVER
 */
static pj_bool_t mod_stateless_on_rx_request(pjsip_rx_data *rdata);

/* Module to handle incoming requests statelessly.
 */
static pjsip_module mod_stateless_server =
{
    NULL, NULL,			    /* prev, next.		*/
    { "mod-stateless-server", 20 }, /* Name.			*/
    -1,				    /* Id			*/
    PJSIP_MOD_PRIORITY_APPLICATION, /* Priority			*/
    NULL,			    /* load()			*/
    NULL,			    /* start()			*/
    NULL,			    /* stop()			*/
    NULL,			    /* unload()			*/
    &mod_stateless_on_rx_request,   /* on_rx_request()		*/
    NULL,			    /* on_rx_response()		*/
    NULL,			    /* on_tx_request.		*/
    NULL,			    /* on_tx_response()		*/
    NULL,			    /* on_tsx_state()		*/
};


static pj_bool_t mod_stateless_on_rx_request(pjsip_rx_data *rdata)
{
    const pj_str_t stateless_user = { "0", 1 };
    pjsip_uri *uri;
    pjsip_sip_uri *sip_uri;

    uri = pjsip_uri_get_uri(rdata->msg_info.msg->line.req.uri);

    /* Only want to receive SIP scheme */
    if (!PJSIP_URI_SCHEME_IS_SIP(uri))
	return PJ_FALSE;

    sip_uri = (pjsip_sip_uri*) uri;

    /* Check for matching user part */
    if (pj_strcmp(&sip_uri->user, &stateless_user)!=0)
	return PJ_FALSE;

    /*
     * Yes, this is for us.
     */

    /* Ignore ACK request */
    if (rdata->msg_info.msg->line.req.method.id == PJSIP_ACK_METHOD)
	return PJ_TRUE;

    /*
     * Respond statelessly with 200/OK.
     */
    pjsip_endpt_respond_stateless(app.sip_endpt, rdata, 200, NULL,
				  NULL, NULL);
    app.server.cur_state.stateless_cnt++;
    return PJ_TRUE;
}


/**************************************************************************
 * STATEFUL SERVER
 */
static pj_bool_t mod_stateful_on_rx_request(pjsip_rx_data *rdata);

/* Module to handle incoming requests statefully.
 */
static pjsip_module mod_stateful_server =
{
    NULL, NULL,			    /* prev, next.		*/
    { "mod-stateful-server", 19 },  /* Name.			*/
    -1,				    /* Id			*/
    PJSIP_MOD_PRIORITY_APPLICATION, /* Priority			*/
    NULL,			    /* load()			*/
    NULL,			    /* start()			*/
    NULL,			    /* stop()			*/
    NULL,			    /* unload()			*/
    &mod_stateful_on_rx_request,   /* on_rx_request()		*/
    NULL,			    /* on_rx_response()		*/
    NULL,			    /* on_tx_request.		*/
    NULL,			    /* on_tx_response()		*/
    NULL,			    /* on_tsx_state()		*/
};


static pj_bool_t mod_stateful_on_rx_request(pjsip_rx_data *rdata)
{
    const pj_str_t stateful_user = { "1", 1 };
    pjsip_uri *uri;
    pjsip_sip_uri *sip_uri;

    uri = pjsip_uri_get_uri(rdata->msg_info.msg->line.req.uri);

    /* Only want to receive SIP scheme */
    if (!PJSIP_URI_SCHEME_IS_SIP(uri))
	return PJ_FALSE;

    sip_uri = (pjsip_sip_uri*) uri;

    /* Check for matching user part */
    if (pj_strcmp(&sip_uri->user, &stateful_user)!=0)
	return PJ_FALSE;

    /*
     * Yes, this is for us.
     * Respond statefully with 200/OK.
     */
    switch (rdata->msg_info.msg->line.req.method.id) {
    case PJSIP_INVITE_METHOD:
	{
	    pjsip_msg_body *body;

	    if (dummy_sdp_str.slen == 0)
		dummy_sdp_str.slen = pj_ansi_strlen(dummy_sdp_str.ptr);

	    body = pjsip_msg_body_create(rdata->tp_info.pool, 
					 &mime_application, &mime_sdp, 
					 &dummy_sdp_str);
	    pjsip_endpt_respond(app.sip_endpt, &mod_stateful_server, rdata,
				200, NULL, NULL, body, NULL);
	}
	break;
    case PJSIP_ACK_METHOD:
	return PJ_TRUE;
    default:
	pjsip_endpt_respond(app.sip_endpt, &mod_stateful_server, rdata,
			    200, NULL, NULL, NULL, NULL);
	break;
    }

    app.server.cur_state.stateful_cnt++;
    return PJ_TRUE;
}


/**************************************************************************
 * CALL SERVER
 */
static pj_bool_t mod_call_on_rx_request(pjsip_rx_data *rdata);

/* Module to handle incoming requests callly.
 */
static pjsip_module mod_call_server =
{
    NULL, NULL,			    /* prev, next.		*/
    { "mod-call-server", 15 },	    /* Name.			*/
    -1,				    /* Id			*/
    PJSIP_MOD_PRIORITY_APPLICATION, /* Priority			*/
    NULL,			    /* load()			*/
    NULL,			    /* start()			*/
    NULL,			    /* stop()			*/
    NULL,			    /* unload()			*/
    &mod_call_on_rx_request,	    /* on_rx_request()		*/
    NULL,			    /* on_rx_response()		*/
    NULL,			    /* on_tx_request.		*/
    NULL,			    /* on_tx_response()		*/
    NULL,			    /* on_tsx_state()		*/
};


static pj_status_t send_response(pjsip_inv_session *inv, 
				 pjsip_rx_data *rdata,
				 int code,
				 pj_bool_t *has_initial)
{
    pjsip_tx_data *tdata;
    pj_status_t status;

    if (*has_initial) {
	status = pjsip_inv_answer(inv, code, NULL, NULL, &tdata);
    } else {
	status = pjsip_inv_initial_answer(inv, rdata, code, 
					  NULL, NULL, &tdata);
    }

    if (status != PJ_SUCCESS) {
	if (*has_initial) {
	    status = pjsip_inv_answer(inv, PJSIP_SC_NOT_ACCEPTABLE, 
				      NULL, NULL, &tdata);
	} else {
	    status = pjsip_inv_initial_answer(inv, rdata, 
					      PJSIP_SC_NOT_ACCEPTABLE,
					      NULL, NULL, &tdata);
	}

	if (status == PJ_SUCCESS) {
	    *has_initial = PJ_TRUE;
	    pjsip_inv_send_msg(inv, tdata); 
	} else {
	    pjsip_inv_terminate(inv, 500, PJ_FALSE);
	    return -1;
	}
    } else {
	*has_initial = PJ_TRUE;

	status = pjsip_inv_send_msg(inv, tdata); 
	if (status != PJ_SUCCESS) {
	    pjsip_tx_data_dec_ref(tdata);
	    return status;
	}
    }

    return status;
}

static void answer_timer_cb(pj_timer_heap_t *h, pj_timer_entry *entry)
{
    struct call *call = entry->user_data;
    pj_bool_t has_initial = PJ_TRUE;

    PJ_UNUSED_ARG(h);

    entry->id = 0;
    send_response(call->inv, NULL, 200, &has_initial);
}

static pj_bool_t mod_call_on_rx_request(pjsip_rx_data *rdata)
{
    const pj_str_t call_user = { "2", 1 };
    pjsip_uri *uri;
    pjsip_sip_uri *sip_uri;
    struct call *call;
    pjsip_dialog *dlg;
    pjmedia_sdp_session *sdp;
    pjsip_tx_data *tdata;
    pj_bool_t has_initial = PJ_FALSE;
    pj_status_t status;

    uri = pjsip_uri_get_uri(rdata->msg_info.msg->line.req.uri);

    /* Only want to receive SIP scheme */
    if (!PJSIP_URI_SCHEME_IS_SIP(uri))
	return PJ_FALSE;

    sip_uri = (pjsip_sip_uri*) uri;

    /* Only want to handle INVITE requests. */
    if (rdata->msg_info.msg->line.req.method.id != PJSIP_INVITE_METHOD) {
	return PJ_FALSE;
    }


    /* Check for matching user part. Incoming requests will be handled 
     * call-statefully if:
     *	- user part is "2", or
     *  - user part is not "0" nor "1" and method is INVITE.
     */
    if (pj_strcmp(&sip_uri->user, &call_user) == 0 ||
	sip_uri->user.slen != 1 ||
	(*sip_uri->user.ptr != '0' && *sip_uri->user.ptr != '1'))
    {
	/* Match */

    } else {
	return PJ_FALSE;
    }


    /* Verify that we can handle the request. */
    if (app.real_sdp) {
	unsigned options = 0;
	status = pjsip_inv_verify_request(rdata, &options, NULL, NULL,
					  app.sip_endpt, &tdata);
	if (status != PJ_SUCCESS) {

	    /*
	     * No we can't handle the incoming INVITE request.
	     */

	    if (tdata) {
		pjsip_response_addr res_addr;

		pjsip_get_response_addr(tdata->pool, rdata, &res_addr);
		pjsip_endpt_send_response(app.sip_endpt, &res_addr, tdata, 
					  NULL, NULL);