jni/libpjsip/sources/pjnath/src/pjnath-test/concur_test.c - jami-client-android - Gitiles

 /* $Id: concur_test.c 4537 2013-06-19 06:47:43Z riza $ */
 /*
  * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
  * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
  *
  * 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
  */
 #include "test.h"

 #if INCLUDE_CONCUR_TEST

 #define THIS_FILE	"concur_test.c"

 /****************************************************************************/
 #define WORKER_THREAD_CNT	4
 #define SERVER_THREAD_CNT	4
 #define MAX_SOCK_CLIENTS	80

 struct stun_test_session
 {
     pj_stun_config	 stun_cfg;

     pj_lock_t		*lock;

     pj_thread_t		*worker_threads[WORKER_THREAD_CNT];

     pj_sock_t		 server_sock;
     int			 server_port;
     pj_thread_t		*server_threads[SERVER_THREAD_CNT];
     pj_event_t		*server_event;

     pj_bool_t		 thread_quit_flag;

     /* Test parameters:  */
     struct {
 	int		 client_got_response;

 	pj_bool_t	 server_wait_for_event;
 	pj_bool_t	 server_drop_request;
 	int		 client_sleep_after_start;
 	int		 client_sleep_before_destroy;
     } param;
 };

 static int server_thread_proc(void *p)
 {
     struct stun_test_session *test_sess = (struct stun_test_session*)p;
     pj_pool_t *pool;
     pj_status_t status;

     PJ_LOG(4,(THIS_FILE, "Server thread running"));

     pool = pj_pool_create(test_sess->stun_cfg.pf, "server", 512, 512, NULL);

     while (!test_sess->thread_quit_flag) {
 	pj_time_val timeout = {0, 10};
 	pj_fd_set_t rdset;
 	int n;

 	/* Serve client */
 	PJ_FD_ZERO(&rdset);
 	PJ_FD_SET(test_sess->server_sock, &rdset);
 	n = pj_sock_select((int)test_sess->server_sock+1, &rdset,
 	                   NULL, NULL, &timeout);
 	if (n==1 && PJ_FD_ISSET(test_sess->server_sock, &rdset)) {
 	    pj_uint8_t pkt[512];
 	    pj_ssize_t pkt_len;
 	    pj_size_t res_len;
 	    pj_sockaddr client_addr;
 	    int addr_len;

 	    pj_stun_msg	*stun_req, *stun_res;

 	    pj_pool_reset(pool);

 	    /* Got query */
 	    pkt_len = sizeof(pkt);
 	    addr_len = sizeof(client_addr);
 	    status = pj_sock_recvfrom(test_sess->server_sock, pkt, &pkt_len,
 	                              0, &client_addr, &addr_len);
 	    if (status != PJ_SUCCESS) {
 		continue;
 	    }

 	    status = pj_stun_msg_decode(pool, pkt, pkt_len,
 	                                PJ_STUN_IS_DATAGRAM,
 	                                &stun_req, NULL, NULL);
 	    if (status != PJ_SUCCESS) {
 		PJ_PERROR(1,(THIS_FILE, status, "STUN request decode error"));
 		continue;
 	    }

 	    status = pj_stun_msg_create_response(pool, stun_req,
 	                                         PJ_STUN_SC_BAD_REQUEST, NULL,
 	                                         &stun_res);
 	    if (status != PJ_SUCCESS) {
 		PJ_PERROR(1,(THIS_FILE, status, "STUN create response error"));
 		continue;
 	    }

 	    status = pj_stun_msg_encode(stun_res, pkt, sizeof(pkt), 0,
 	                                NULL, &res_len);
 	    if (status != PJ_SUCCESS) {
 		PJ_PERROR(1,(THIS_FILE, status, "STUN encode error"));
 		continue;
 	    }

 	    /* Ignore request */
 	    if (test_sess->param.server_drop_request)
 		continue;

 	    /* Wait for signal to continue */
 	    if (test_sess->param.server_wait_for_event)
 		pj_event_wait(test_sess->server_event);

 	    pkt_len = res_len;
 	    pj_sock_sendto(test_sess->server_sock, pkt, &pkt_len, 0,
 	                   &client_addr, pj_sockaddr_get_len(&client_addr));
 	}
     }

     pj_pool_release(pool);

     PJ_LOG(4,(THIS_FILE, "Server thread quitting"));
     return 0;
 }

 static int worker_thread_proc(void *p)
 {
     struct stun_test_session *test_sess = (struct stun_test_session*)p;

     PJ_LOG(4,(THIS_FILE, "Worker thread running"));

     while (!test_sess->thread_quit_flag) {
 	pj_time_val timeout = {0, 10};
 	pj_timer_heap_poll(test_sess->stun_cfg.timer_heap, NULL);
 	pj_ioqueue_poll(test_sess->stun_cfg.ioqueue, &timeout);
     }

     PJ_LOG(4,(THIS_FILE, "Worker thread quitting"));
     return 0;
 }

 static pj_bool_t stun_sock_on_status(pj_stun_sock *stun_sock,
                                      pj_stun_sock_op op,
                                      pj_status_t status)
 {
     struct stun_test_session *test_sess = (struct stun_test_session*)pj_stun_sock_get_user_data(stun_sock);

     PJ_UNUSED_ARG(op);
     PJ_UNUSED_ARG(status);

     test_sess->param.client_got_response++;
     return PJ_TRUE;
 }

 static int stun_destroy_test_session(struct stun_test_session *test_sess)
 {

     unsigned i;
     pj_stun_sock_cb stun_cb;
     pj_status_t status;
     pj_stun_sock *stun_sock[MAX_SOCK_CLIENTS];

     pj_bzero(&stun_cb, sizeof(stun_cb));
     stun_cb.on_status = &stun_sock_on_status;

     pj_event_reset(test_sess->server_event);

     /* Create all clients first */
     for (i=0; i<MAX_SOCK_CLIENTS; ++i) {
 	char name[10];
 	sprintf(name, "stun%02d", i);
 	status = pj_stun_sock_create(&test_sess->stun_cfg, name, pj_AF_INET(),
 	                             &stun_cb, NULL, test_sess,
 	                             &stun_sock[i]);
 	if (status != PJ_SUCCESS) {
 	    PJ_PERROR(1,(THIS_FILE, status, "Error creating stun socket"));
 	    return -10;
 	}
     }

     /* Start resolution */
     for (i=0; i<MAX_SOCK_CLIENTS; ++i) {
 	pj_str_t server_ip = pj_str("127.0.0.1");
 	status = pj_stun_sock_start(stun_sock[i], &server_ip,
 	                            (pj_uint16_t)test_sess->server_port, NULL);
 	if (status != PJ_SUCCESS) {
 	    PJ_PERROR(1,(THIS_FILE, status, "Error starting stun socket"));
 	    return -20;
 	}
     }

     /* settle down */
     pj_thread_sleep(test_sess->param.client_sleep_after_start);

     /* Resume server threads */
     pj_event_set(test_sess->server_event);

     pj_thread_sleep(test_sess->param.client_sleep_before_destroy);

     /* Destroy clients */
     for (i=0; i<MAX_SOCK_CLIENTS; ++i) {
 	status = pj_stun_sock_destroy(stun_sock[i]);
 	if (status != PJ_SUCCESS) {
 	    PJ_PERROR(1,(THIS_FILE, status, "Error destroying stun socket"));
 	}
     }

     return 0;
 }

 static int stun_destroy_test(void)
 {
     enum { LOOP = 500 };
     struct stun_test_session test_sess;
     pj_sockaddr bind_addr;
     int addr_len;
     pj_caching_pool cp;
     pj_pool_t *pool;
     unsigned i;
     pj_status_t status;
     int rc = 0;

     PJ_LOG(3,(THIS_FILE, "  STUN destroy concurrency test"));

     pj_bzero(&test_sess, sizeof(test_sess));

     pj_caching_pool_init(&cp, NULL, 0);
     pool = pj_pool_create(&cp.factory, "testsess", 512, 512, NULL);

     pj_stun_config_init(&test_sess.stun_cfg, &cp.factory, 0, NULL, NULL);

     status = pj_timer_heap_create(pool, 1023, &test_sess.stun_cfg.timer_heap);
     pj_assert(status == PJ_SUCCESS);

     status = pj_lock_create_recursive_mutex(pool, NULL, &test_sess.lock);
     pj_assert(status == PJ_SUCCESS);

     pj_timer_heap_set_lock(test_sess.stun_cfg.timer_heap, test_sess.lock, PJ_TRUE);
     pj_assert(status == PJ_SUCCESS);

     status = pj_ioqueue_create(pool, 512, &test_sess.stun_cfg.ioqueue);
     pj_assert(status == PJ_SUCCESS);

     pj_sock_socket(pj_AF_INET(), pj_SOCK_DGRAM(), 0, &test_sess.server_sock);
     pj_sockaddr_init(pj_AF_INET(), &bind_addr, NULL, 0);
     status = pj_sock_bind(test_sess.server_sock, &bind_addr, pj_sockaddr_get_len(&bind_addr));
     pj_assert(status == PJ_SUCCESS);

     addr_len = sizeof(bind_addr);
     status = pj_sock_getsockname(test_sess.server_sock, &bind_addr, &addr_len);
     pj_assert(status == PJ_SUCCESS);

     test_sess.server_port = pj_sockaddr_get_port(&bind_addr);

     status = pj_event_create(pool, NULL, PJ_TRUE, PJ_FALSE, &test_sess.server_event);
     pj_assert(status == PJ_SUCCESS);

     for (i=0; i<SERVER_THREAD_CNT; ++i) {
 	status = pj_thread_create(pool, NULL,
 	                          &server_thread_proc, &test_sess,
 	                          0, 0, &test_sess.server_threads[i]);
 	pj_assert(status == PJ_SUCCESS);
     }

     for (i=0; i<WORKER_THREAD_CNT; ++i) {
 	status = pj_thread_create(pool, NULL,
 	                          &worker_thread_proc, &test_sess,
 	                          0, 0, &test_sess.worker_threads[i]);
 	pj_assert(status == PJ_SUCCESS);
     }

     /* Test 1: Main thread calls destroy while callback is processing response */
     PJ_LOG(3,(THIS_FILE, "    Destroy in main thread while callback is running"));
     for (i=0; i<LOOP; ++i) {
 	int sleep = pj_rand() % 5;

 	PJ_LOG(3,(THIS_FILE, "      Try %-3d of %d", i+1, LOOP));

 	/* Test 1: destroy at the same time when receiving response */
 	pj_bzero(&test_sess.param, sizeof(test_sess.param));
 	test_sess.param.client_sleep_after_start = 20;
 	test_sess.param.client_sleep_before_destroy = sleep;
 	test_sess.param.server_wait_for_event = PJ_TRUE;
 	stun_destroy_test_session(&test_sess);
 	PJ_LOG(3,(THIS_FILE,
 		  "        stun test a: sleep delay:%d: clients with response: %d",
 		  sleep, test_sess.param.client_got_response));

 	/* Test 2: destroy at the same time with STUN retransmit timer */
 	test_sess.param.server_drop_request = PJ_TRUE;
 	test_sess.param.client_sleep_after_start = 0;
 	test_sess.param.client_sleep_before_destroy = PJ_STUN_RTO_VALUE;
 	test_sess.param.server_wait_for_event = PJ_FALSE;
 	stun_destroy_test_session(&test_sess);
 	PJ_LOG(3,(THIS_FILE, "        stun test b: retransmit concurrency"));

 	/* Test 3: destroy at the same time with receiving response
 	 * AND STUN retransmit timer */
 	test_sess.param.client_got_response = 0;
 	test_sess.param.server_drop_request = PJ_FALSE;
 	test_sess.param.client_sleep_after_start = PJ_STUN_RTO_VALUE;
 	test_sess.param.client_sleep_before_destroy = 0;
 	test_sess.param.server_wait_for_event = PJ_TRUE;
 	stun_destroy_test_session(&test_sess);
 	PJ_LOG(3,(THIS_FILE,
 		  "        stun test c: clients with response: %d",
 		  test_sess.param.client_got_response));

 	pj_thread_sleep(10);

 	ice_one_conc_test(&test_sess.stun_cfg, PJ_FALSE);

 	pj_thread_sleep(10);
     }

     /* Avoid compiler warning */
     goto on_return;


 on_return:
     test_sess.thread_quit_flag = PJ_TRUE;

     for (i=0; i<SERVER_THREAD_CNT; ++i) {
 	pj_thread_join(test_sess.server_threads[i]);
     }

     for (i=0; i<WORKER_THREAD_CNT; ++i) {
 	pj_thread_join(test_sess.worker_threads[i]);
     }

     pj_event_destroy(test_sess.server_event);
     pj_sock_close(test_sess.server_sock);
     pj_ioqueue_destroy(test_sess.stun_cfg.ioqueue);
     pj_timer_heap_destroy(test_sess.stun_cfg.timer_heap);

     pj_pool_release(pool);
     pj_caching_pool_destroy(&cp);

     PJ_LOG(3,(THIS_FILE, "    Done. rc=%d", rc));
     return rc;
 }


 int concur_test(void)
 {
     int rc = 0;

     rc += stun_destroy_test();

     return 0;
 }

 #endif	/* INCLUDE_CONCUR_TEST */
	/* $Id: concur_test.c 4537 2013-06-19 06:47:43Z riza $ */
	/*
	* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
	* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
	*
	* 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
	*/
	#include "test.h"

	#if INCLUDE_CONCUR_TEST

	#define THIS_FILE "concur_test.c"

	/****************************************************************************/
	#define WORKER_THREAD_CNT 4
	#define SERVER_THREAD_CNT 4
	#define MAX_SOCK_CLIENTS 80

	struct stun_test_session
	{
	pj_stun_config stun_cfg;

	pj_lock_t *lock;

	pj_thread_t *worker_threads[WORKER_THREAD_CNT];

	pj_sock_t server_sock;
	int server_port;
	pj_thread_t *server_threads[SERVER_THREAD_CNT];
	pj_event_t *server_event;

	pj_bool_t thread_quit_flag;

	/* Test parameters: */
	struct {
	int client_got_response;

	pj_bool_t server_wait_for_event;
	pj_bool_t server_drop_request;
	int client_sleep_after_start;
	int client_sleep_before_destroy;
	} param;
	};

	static int server_thread_proc(void *p)
	{
	struct stun_test_session test_sess = (struct stun_test_session)p;
	pj_pool_t *pool;
	pj_status_t status;

	PJ_LOG(4,(THIS_FILE, "Server thread running"));

	pool = pj_pool_create(test_sess->stun_cfg.pf, "server", 512, 512, NULL);

	while (!test_sess->thread_quit_flag) {
	pj_time_val timeout = {0, 10};
	pj_fd_set_t rdset;
	int n;

	/* Serve client */
	PJ_FD_ZERO(&rdset);
	PJ_FD_SET(test_sess->server_sock, &rdset);
	n = pj_sock_select((int)test_sess->server_sock+1, &rdset,
	NULL, NULL, &timeout);
	if (n==1 && PJ_FD_ISSET(test_sess->server_sock, &rdset)) {
	pj_uint8_t pkt[512];
	pj_ssize_t pkt_len;
	pj_size_t res_len;
	pj_sockaddr client_addr;
	int addr_len;

	pj_stun_msg stun_req, stun_res;

	pj_pool_reset(pool);

	/* Got query */
	pkt_len = sizeof(pkt);
	addr_len = sizeof(client_addr);
	status = pj_sock_recvfrom(test_sess->server_sock, pkt, &pkt_len,
	0, &client_addr, &addr_len);
	if (status != PJ_SUCCESS) {
	continue;
	}

	status = pj_stun_msg_decode(pool, pkt, pkt_len,
	PJ_STUN_IS_DATAGRAM,
	&stun_req, NULL, NULL);
	if (status != PJ_SUCCESS) {
	PJ_PERROR(1,(THIS_FILE, status, "STUN request decode error"));
	continue;
	}

	status = pj_stun_msg_create_response(pool, stun_req,
	PJ_STUN_SC_BAD_REQUEST, NULL,
	&stun_res);
	if (status != PJ_SUCCESS) {
	PJ_PERROR(1,(THIS_FILE, status, "STUN create response error"));
	continue;
	}

	status = pj_stun_msg_encode(stun_res, pkt, sizeof(pkt), 0,
	NULL, &res_len);
	if (status != PJ_SUCCESS) {
	PJ_PERROR(1,(THIS_FILE, status, "STUN encode error"));
	continue;
	}

	/* Ignore request */
	if (test_sess->param.server_drop_request)
	continue;

	/* Wait for signal to continue */
	if (test_sess->param.server_wait_for_event)
	pj_event_wait(test_sess->server_event);

	pkt_len = res_len;
	pj_sock_sendto(test_sess->server_sock, pkt, &pkt_len, 0,
	&client_addr, pj_sockaddr_get_len(&client_addr));
	}
	}

	pj_pool_release(pool);

	PJ_LOG(4,(THIS_FILE, "Server thread quitting"));
	return 0;
	}

	static int worker_thread_proc(void *p)
	{
	struct stun_test_session test_sess = (struct stun_test_session)p;

	PJ_LOG(4,(THIS_FILE, "Worker thread running"));

	while (!test_sess->thread_quit_flag) {
	pj_time_val timeout = {0, 10};
	pj_timer_heap_poll(test_sess->stun_cfg.timer_heap, NULL);
	pj_ioqueue_poll(test_sess->stun_cfg.ioqueue, &timeout);
	}

	PJ_LOG(4,(THIS_FILE, "Worker thread quitting"));
	return 0;
	}

	static pj_bool_t stun_sock_on_status(pj_stun_sock *stun_sock,
	pj_stun_sock_op op,
	pj_status_t status)
	{
	struct stun_test_session test_sess = (struct stun_test_session)pj_stun_sock_get_user_data(stun_sock);

	PJ_UNUSED_ARG(op);
	PJ_UNUSED_ARG(status);

	test_sess->param.client_got_response++;
	return PJ_TRUE;
	}

	static int stun_destroy_test_session(struct stun_test_session *test_sess)
	{

	unsigned i;
	pj_stun_sock_cb stun_cb;
	pj_status_t status;
	pj_stun_sock *stun_sock[MAX_SOCK_CLIENTS];

	pj_bzero(&stun_cb, sizeof(stun_cb));
	stun_cb.on_status = &stun_sock_on_status;

	pj_event_reset(test_sess->server_event);

	/* Create all clients first */
	for (i=0; i<MAX_SOCK_CLIENTS; ++i) {
	char name[10];
	sprintf(name, "stun%02d", i);
	status = pj_stun_sock_create(&test_sess->stun_cfg, name, pj_AF_INET(),
	&stun_cb, NULL, test_sess,
	&stun_sock[i]);
	if (status != PJ_SUCCESS) {
	PJ_PERROR(1,(THIS_FILE, status, "Error creating stun socket"));
	return -10;
	}
	}

	/* Start resolution */
	for (i=0; i<MAX_SOCK_CLIENTS; ++i) {
	pj_str_t server_ip = pj_str("127.0.0.1");
	status = pj_stun_sock_start(stun_sock[i], &server_ip,
	(pj_uint16_t)test_sess->server_port, NULL);
	if (status != PJ_SUCCESS) {
	PJ_PERROR(1,(THIS_FILE, status, "Error starting stun socket"));
	return -20;
	}
	}

	/* settle down */
	pj_thread_sleep(test_sess->param.client_sleep_after_start);

	/* Resume server threads */
	pj_event_set(test_sess->server_event);

	pj_thread_sleep(test_sess->param.client_sleep_before_destroy);

	/* Destroy clients */
	for (i=0; i<MAX_SOCK_CLIENTS; ++i) {
	status = pj_stun_sock_destroy(stun_sock[i]);
	if (status != PJ_SUCCESS) {
	PJ_PERROR(1,(THIS_FILE, status, "Error destroying stun socket"));
	}
	}

	return 0;
	}

	static int stun_destroy_test(void)
	{
	enum { LOOP = 500 };
	struct stun_test_session test_sess;
	pj_sockaddr bind_addr;
	int addr_len;
	pj_caching_pool cp;
	pj_pool_t *pool;
	unsigned i;
	pj_status_t status;
	int rc = 0;

	PJ_LOG(3,(THIS_FILE, " STUN destroy concurrency test"));

	pj_bzero(&test_sess, sizeof(test_sess));

	pj_caching_pool_init(&cp, NULL, 0);
	pool = pj_pool_create(&cp.factory, "testsess", 512, 512, NULL);

	pj_stun_config_init(&test_sess.stun_cfg, &cp.factory, 0, NULL, NULL);

	status = pj_timer_heap_create(pool, 1023, &test_sess.stun_cfg.timer_heap);
	pj_assert(status == PJ_SUCCESS);

	status = pj_lock_create_recursive_mutex(pool, NULL, &test_sess.lock);
	pj_assert(status == PJ_SUCCESS);

	pj_timer_heap_set_lock(test_sess.stun_cfg.timer_heap, test_sess.lock, PJ_TRUE);
	pj_assert(status == PJ_SUCCESS);

	status = pj_ioqueue_create(pool, 512, &test_sess.stun_cfg.ioqueue);
	pj_assert(status == PJ_SUCCESS);

	pj_sock_socket(pj_AF_INET(), pj_SOCK_DGRAM(), 0, &test_sess.server_sock);
	pj_sockaddr_init(pj_AF_INET(), &bind_addr, NULL, 0);
	status = pj_sock_bind(test_sess.server_sock, &bind_addr, pj_sockaddr_get_len(&bind_addr));
	pj_assert(status == PJ_SUCCESS);

	addr_len = sizeof(bind_addr);
	status = pj_sock_getsockname(test_sess.server_sock, &bind_addr, &addr_len);
	pj_assert(status == PJ_SUCCESS);

	test_sess.server_port = pj_sockaddr_get_port(&bind_addr);

	status = pj_event_create(pool, NULL, PJ_TRUE, PJ_FALSE, &test_sess.server_event);
	pj_assert(status == PJ_SUCCESS);

	for (i=0; i<SERVER_THREAD_CNT; ++i) {
	status = pj_thread_create(pool, NULL,
	&server_thread_proc, &test_sess,
	0, 0, &test_sess.server_threads[i]);
	pj_assert(status == PJ_SUCCESS);
	}

	for (i=0; i<WORKER_THREAD_CNT; ++i) {
	status = pj_thread_create(pool, NULL,
	&worker_thread_proc, &test_sess,
	0, 0, &test_sess.worker_threads[i]);
	pj_assert(status == PJ_SUCCESS);
	}

	/* Test 1: Main thread calls destroy while callback is processing response */
	PJ_LOG(3,(THIS_FILE, " Destroy in main thread while callback is running"));
	for (i=0; i<LOOP; ++i) {
	int sleep = pj_rand() % 5;

	PJ_LOG(3,(THIS_FILE, " Try %-3d of %d", i+1, LOOP));

	/* Test 1: destroy at the same time when receiving response */
	pj_bzero(&test_sess.param, sizeof(test_sess.param));
	test_sess.param.client_sleep_after_start = 20;
	test_sess.param.client_sleep_before_destroy = sleep;
	test_sess.param.server_wait_for_event = PJ_TRUE;
	stun_destroy_test_session(&test_sess);
	PJ_LOG(3,(THIS_FILE,
	" stun test a: sleep delay:%d: clients with response: %d",
	sleep, test_sess.param.client_got_response));

	/* Test 2: destroy at the same time with STUN retransmit timer */
	test_sess.param.server_drop_request = PJ_TRUE;
	test_sess.param.client_sleep_after_start = 0;
	test_sess.param.client_sleep_before_destroy = PJ_STUN_RTO_VALUE;
	test_sess.param.server_wait_for_event = PJ_FALSE;
	stun_destroy_test_session(&test_sess);
	PJ_LOG(3,(THIS_FILE, " stun test b: retransmit concurrency"));

	/* Test 3: destroy at the same time with receiving response
	* AND STUN retransmit timer */
	test_sess.param.client_got_response = 0;
	test_sess.param.server_drop_request = PJ_FALSE;
	test_sess.param.client_sleep_after_start = PJ_STUN_RTO_VALUE;
	test_sess.param.client_sleep_before_destroy = 0;
	test_sess.param.server_wait_for_event = PJ_TRUE;
	stun_destroy_test_session(&test_sess);
	PJ_LOG(3,(THIS_FILE,
	" stun test c: clients with response: %d",
	test_sess.param.client_got_response));

	pj_thread_sleep(10);

	ice_one_conc_test(&test_sess.stun_cfg, PJ_FALSE);

	pj_thread_sleep(10);
	}

	/* Avoid compiler warning */
	goto on_return;


	on_return:
	test_sess.thread_quit_flag = PJ_TRUE;

	for (i=0; i<SERVER_THREAD_CNT; ++i) {
	pj_thread_join(test_sess.server_threads[i]);
	}

	for (i=0; i<WORKER_THREAD_CNT; ++i) {
	pj_thread_join(test_sess.worker_threads[i]);
	}

	pj_event_destroy(test_sess.server_event);
	pj_sock_close(test_sess.server_sock);
	pj_ioqueue_destroy(test_sess.stun_cfg.ioqueue);
	pj_timer_heap_destroy(test_sess.stun_cfg.timer_heap);

	pj_pool_release(pool);
	pj_caching_pool_destroy(&cp);

	PJ_LOG(3,(THIS_FILE, " Done. rc=%d", rc));
	return rc;
	}


	int concur_test(void)
	{
	int rc = 0;

	rc += stun_destroy_test();

	return 0;
	}

	#endif /* INCLUDE_CONCUR_TEST */