Alexandre Lision | 8af73cb | 2013-12-10 14:11:20 -0500 | [diff] [blame] | 1 | /* $Id: siprtp.c 4537 2013-06-19 06:47:43Z riza $ */ |
Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | |
| 22 | |
| 23 | |
| 24 | |
| 25 | /* Usage */ |
| 26 | static const char *USAGE = |
| 27 | " PURPOSE: \n" |
| 28 | " This program establishes SIP INVITE session and media, and calculate \n" |
| 29 | " the media quality (packet lost, jitter, rtt, etc.). Unlike normal \n" |
| 30 | " pjmedia applications, this program bypasses all pjmedia stream \n" |
| 31 | " framework and transmit encoded RTP packets manually using own thread. \n" |
| 32 | "\n" |
| 33 | " USAGE:\n" |
| 34 | " siprtp [options] => to start in server mode\n" |
| 35 | " siprtp [options] URL => to start in client mode\n" |
| 36 | "\n" |
| 37 | " Program options:\n" |
| 38 | " --count=N, -c Set number of calls to create (default:1) \n" |
| 39 | " --gap=N -g Set call gapping to N msec (default:0)\n" |
| 40 | " --duration=SEC, -d Set maximum call duration (default:unlimited) \n" |
| 41 | " --auto-quit, -q Quit when calls have been completed (default:no)\n" |
| 42 | " --call-report -R Display report on call termination (default:yes)\n" |
| 43 | "\n" |
| 44 | " Address and ports options:\n" |
| 45 | " --local-port=PORT,-p Set local SIP port (default: 5060)\n" |
| 46 | " --rtp-port=PORT, -r Set start of RTP port (default: 4000)\n" |
| 47 | " --ip-addr=IP, -i Set local IP address to use (otherwise it will\n" |
| 48 | " try to determine local IP address from hostname)\n" |
| 49 | "\n" |
| 50 | " Logging Options:\n" |
| 51 | " --log-level=N, -l Set log verbosity level (default=5)\n" |
| 52 | " --app-log-level=N Set app screen log verbosity (default=3)\n" |
| 53 | " --log-file=FILE Write log to file FILE\n" |
| 54 | " --report-file=FILE Write report to file FILE\n" |
| 55 | "\n" |
| 56 | /* Don't support this anymore, because codec is properly examined in |
| 57 | pjmedia_session_info_from_sdp() function. |
| 58 | |
| 59 | " Codec Options:\n" |
| 60 | " --a-pt=PT Set audio payload type to PT (default=0)\n" |
| 61 | " --a-name=NAME Set audio codec name to NAME (default=pcmu)\n" |
| 62 | " --a-clock=RATE Set audio codec rate to RATE Hz (default=8000Hz)\n" |
| 63 | " --a-bitrate=BPS Set audio codec bitrate to BPS (default=64000bps)\n" |
| 64 | " --a-ptime=MS Set audio frame time to MS msec (default=20ms)\n" |
| 65 | */ |
| 66 | ; |
| 67 | |
| 68 | |
| 69 | /* Include all headers. */ |
| 70 | #include <pjsip.h> |
| 71 | #include <pjmedia.h> |
| 72 | #include <pjmedia-codec.h> |
| 73 | #include <pjsip_ua.h> |
| 74 | #include <pjsip_simple.h> |
| 75 | #include <pjlib-util.h> |
| 76 | #include <pjlib.h> |
| 77 | |
| 78 | #include <stdlib.h> |
| 79 | |
| 80 | /* Uncomment these to disable threads. |
| 81 | * NOTE: |
| 82 | * when threading is disabled, siprtp won't transmit any |
| 83 | * RTP packets. |
| 84 | */ |
| 85 | /* |
| 86 | #undef PJ_HAS_THREADS |
| 87 | #define PJ_HAS_THREADS 0 |
| 88 | */ |
| 89 | |
| 90 | |
| 91 | #if PJ_HAS_HIGH_RES_TIMER==0 |
| 92 | # error "High resolution timer is needed for this sample" |
| 93 | #endif |
| 94 | |
| 95 | #define THIS_FILE "siprtp.c" |
| 96 | #define MAX_CALLS 1024 |
| 97 | #define RTP_START_PORT 4000 |
| 98 | |
| 99 | |
| 100 | /* Codec descriptor: */ |
| 101 | struct codec |
| 102 | { |
| 103 | unsigned pt; |
| 104 | char* name; |
| 105 | unsigned clock_rate; |
| 106 | unsigned bit_rate; |
| 107 | unsigned ptime; |
| 108 | char* description; |
| 109 | }; |
| 110 | |
| 111 | |
| 112 | /* A bidirectional media stream created when the call is active. */ |
| 113 | struct media_stream |
| 114 | { |
| 115 | /* Static: */ |
| 116 | unsigned call_index; /* Call owner. */ |
| 117 | unsigned media_index; /* Media index in call. */ |
| 118 | pjmedia_transport *transport; /* To send/recv RTP/RTCP */ |
| 119 | |
| 120 | /* Active? */ |
| 121 | pj_bool_t active; /* Non-zero if is in call. */ |
| 122 | |
| 123 | /* Current stream info: */ |
| 124 | pjmedia_stream_info si; /* Current stream info. */ |
| 125 | |
| 126 | /* More info: */ |
| 127 | unsigned clock_rate; /* clock rate */ |
| 128 | unsigned samples_per_frame; /* samples per frame */ |
| 129 | unsigned bytes_per_frame; /* frame size. */ |
| 130 | |
| 131 | /* RTP session: */ |
| 132 | pjmedia_rtp_session out_sess; /* outgoing RTP session */ |
| 133 | pjmedia_rtp_session in_sess; /* incoming RTP session */ |
| 134 | |
| 135 | /* RTCP stats: */ |
| 136 | pjmedia_rtcp_session rtcp; /* incoming RTCP session. */ |
| 137 | |
| 138 | /* Thread: */ |
| 139 | pj_bool_t thread_quit_flag; /* Stop media thread. */ |
| 140 | pj_thread_t *thread; /* Media thread. */ |
| 141 | }; |
| 142 | |
| 143 | |
| 144 | /* This is a call structure that is created when the application starts |
| 145 | * and only destroyed when the application quits. |
| 146 | */ |
| 147 | struct call |
| 148 | { |
| 149 | unsigned index; |
| 150 | pjsip_inv_session *inv; |
| 151 | unsigned media_count; |
| 152 | struct media_stream media[1]; |
| 153 | pj_time_val start_time; |
| 154 | pj_time_val response_time; |
| 155 | pj_time_val connect_time; |
| 156 | |
| 157 | pj_timer_entry d_timer; /**< Disconnect timer. */ |
| 158 | }; |
| 159 | |
| 160 | |
| 161 | /* Application's global variables */ |
| 162 | static struct app |
| 163 | { |
| 164 | unsigned max_calls; |
| 165 | unsigned call_gap; |
| 166 | pj_bool_t call_report; |
| 167 | unsigned uac_calls; |
| 168 | unsigned duration; |
| 169 | pj_bool_t auto_quit; |
| 170 | unsigned thread_count; |
| 171 | int sip_port; |
| 172 | int rtp_start_port; |
| 173 | pj_str_t local_addr; |
| 174 | pj_str_t local_uri; |
| 175 | pj_str_t local_contact; |
| 176 | |
| 177 | int app_log_level; |
| 178 | int log_level; |
| 179 | char *log_filename; |
| 180 | char *report_filename; |
| 181 | |
| 182 | struct codec audio_codec; |
| 183 | |
| 184 | pj_str_t uri_to_call; |
| 185 | |
| 186 | pj_caching_pool cp; |
| 187 | pj_pool_t *pool; |
| 188 | |
| 189 | pjsip_endpoint *sip_endpt; |
| 190 | pj_bool_t thread_quit; |
| 191 | pj_thread_t *sip_thread[1]; |
| 192 | |
| 193 | pjmedia_endpt *med_endpt; |
| 194 | struct call call[MAX_CALLS]; |
| 195 | } app; |
| 196 | |
| 197 | |
| 198 | |
| 199 | /* |
| 200 | * Prototypes: |
| 201 | */ |
| 202 | |
| 203 | /* Callback to be called when SDP negotiation is done in the call: */ |
| 204 | static void call_on_media_update( pjsip_inv_session *inv, |
| 205 | pj_status_t status); |
| 206 | |
| 207 | /* Callback to be called when invite session's state has changed: */ |
| 208 | static void call_on_state_changed( pjsip_inv_session *inv, |
| 209 | pjsip_event *e); |
| 210 | |
| 211 | /* Callback to be called when dialog has forked: */ |
| 212 | static void call_on_forked(pjsip_inv_session *inv, pjsip_event *e); |
| 213 | |
| 214 | /* Callback to be called to handle incoming requests outside dialogs: */ |
| 215 | static pj_bool_t on_rx_request( pjsip_rx_data *rdata ); |
| 216 | |
| 217 | /* Worker thread prototype */ |
| 218 | static int sip_worker_thread(void *arg); |
| 219 | |
| 220 | /* Create SDP for call */ |
| 221 | static pj_status_t create_sdp( pj_pool_t *pool, |
| 222 | struct call *call, |
| 223 | pjmedia_sdp_session **p_sdp); |
| 224 | |
| 225 | /* Hangup call */ |
| 226 | static void hangup_call(unsigned index); |
| 227 | |
| 228 | /* Destroy the call's media */ |
| 229 | static void destroy_call_media(unsigned call_index); |
| 230 | |
| 231 | /* Destroy media. */ |
| 232 | static void destroy_media(); |
| 233 | |
| 234 | /* This callback is called by media transport on receipt of RTP packet. */ |
| 235 | static void on_rx_rtp(void *user_data, void *pkt, pj_ssize_t size); |
| 236 | |
| 237 | /* This callback is called by media transport on receipt of RTCP packet. */ |
| 238 | static void on_rx_rtcp(void *user_data, void *pkt, pj_ssize_t size); |
| 239 | |
| 240 | /* Display error */ |
| 241 | static void app_perror(const char *sender, const char *title, |
| 242 | pj_status_t status); |
| 243 | |
| 244 | /* Print call */ |
| 245 | static void print_call(int call_index); |
| 246 | |
| 247 | |
| 248 | /* This is a PJSIP module to be registered by application to handle |
| 249 | * incoming requests outside any dialogs/transactions. The main purpose |
| 250 | * here is to handle incoming INVITE request message, where we will |
| 251 | * create a dialog and INVITE session for it. |
| 252 | */ |
| 253 | static pjsip_module mod_siprtp = |
| 254 | { |
| 255 | NULL, NULL, /* prev, next. */ |
| 256 | { "mod-siprtpapp", 13 }, /* Name. */ |
| 257 | -1, /* Id */ |
| 258 | PJSIP_MOD_PRIORITY_APPLICATION, /* Priority */ |
| 259 | NULL, /* load() */ |
| 260 | NULL, /* start() */ |
| 261 | NULL, /* stop() */ |
| 262 | NULL, /* unload() */ |
| 263 | &on_rx_request, /* on_rx_request() */ |
| 264 | NULL, /* on_rx_response() */ |
| 265 | NULL, /* on_tx_request. */ |
| 266 | NULL, /* on_tx_response() */ |
| 267 | NULL, /* on_tsx_state() */ |
| 268 | }; |
| 269 | |
| 270 | |
| 271 | /* Codec constants */ |
| 272 | struct codec audio_codecs[] = |
| 273 | { |
| 274 | { 0, "PCMU", 8000, 64000, 20, "G.711 ULaw" }, |
| 275 | { 3, "GSM", 8000, 13200, 20, "GSM" }, |
| 276 | { 4, "G723", 8000, 6400, 30, "G.723.1" }, |
| 277 | { 8, "PCMA", 8000, 64000, 20, "G.711 ALaw" }, |
| 278 | { 18, "G729", 8000, 8000, 20, "G.729" }, |
| 279 | }; |
| 280 | |
| 281 | |
| 282 | /* |
| 283 | * Init SIP stack |
| 284 | */ |
| 285 | static pj_status_t init_sip() |
| 286 | { |
| 287 | unsigned i; |
| 288 | pj_status_t status; |
| 289 | |
| 290 | /* init PJLIB-UTIL: */ |
| 291 | status = pjlib_util_init(); |
| 292 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 293 | |
| 294 | /* Must create a pool factory before we can allocate any memory. */ |
| 295 | pj_caching_pool_init(&app.cp, &pj_pool_factory_default_policy, 0); |
| 296 | |
| 297 | /* Create application pool for misc. */ |
| 298 | app.pool = pj_pool_create(&app.cp.factory, "app", 1000, 1000, NULL); |
| 299 | |
| 300 | /* Create the endpoint: */ |
| 301 | status = pjsip_endpt_create(&app.cp.factory, pj_gethostname()->ptr, |
| 302 | &app.sip_endpt); |
| 303 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 304 | |
| 305 | |
| 306 | /* Add UDP transport. */ |
| 307 | { |
| 308 | pj_sockaddr_in addr; |
| 309 | pjsip_host_port addrname; |
| 310 | pjsip_transport *tp; |
| 311 | |
| 312 | pj_bzero(&addr, sizeof(addr)); |
| 313 | addr.sin_family = pj_AF_INET(); |
| 314 | addr.sin_addr.s_addr = 0; |
| 315 | addr.sin_port = pj_htons((pj_uint16_t)app.sip_port); |
| 316 | |
| 317 | if (app.local_addr.slen) { |
| 318 | |
| 319 | addrname.host = app.local_addr; |
| 320 | addrname.port = app.sip_port; |
| 321 | |
| 322 | status = pj_sockaddr_in_init(&addr, &app.local_addr, |
| 323 | (pj_uint16_t)app.sip_port); |
| 324 | if (status != PJ_SUCCESS) { |
| 325 | app_perror(THIS_FILE, "Unable to resolve IP interface", status); |
| 326 | return status; |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | status = pjsip_udp_transport_start( app.sip_endpt, &addr, |
| 331 | (app.local_addr.slen ? &addrname:NULL), |
| 332 | 1, &tp); |
| 333 | if (status != PJ_SUCCESS) { |
| 334 | app_perror(THIS_FILE, "Unable to start UDP transport", status); |
| 335 | return status; |
| 336 | } |
| 337 | |
| 338 | PJ_LOG(3,(THIS_FILE, "SIP UDP listening on %.*s:%d", |
| 339 | (int)tp->local_name.host.slen, tp->local_name.host.ptr, |
| 340 | tp->local_name.port)); |
| 341 | } |
| 342 | |
| 343 | /* |
| 344 | * Init transaction layer. |
| 345 | * This will create/initialize transaction hash tables etc. |
| 346 | */ |
| 347 | status = pjsip_tsx_layer_init_module(app.sip_endpt); |
| 348 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 349 | |
| 350 | /* Initialize UA layer. */ |
| 351 | status = pjsip_ua_init_module( app.sip_endpt, NULL ); |
| 352 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 353 | |
| 354 | /* Initialize 100rel support */ |
| 355 | status = pjsip_100rel_init_module(app.sip_endpt); |
| 356 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 357 | |
| 358 | /* Init invite session module. */ |
| 359 | { |
| 360 | pjsip_inv_callback inv_cb; |
| 361 | |
| 362 | /* Init the callback for INVITE session: */ |
| 363 | pj_bzero(&inv_cb, sizeof(inv_cb)); |
| 364 | inv_cb.on_state_changed = &call_on_state_changed; |
| 365 | inv_cb.on_new_session = &call_on_forked; |
| 366 | inv_cb.on_media_update = &call_on_media_update; |
| 367 | |
| 368 | /* Initialize invite session module: */ |
| 369 | status = pjsip_inv_usage_init(app.sip_endpt, &inv_cb); |
| 370 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1); |
| 371 | } |
| 372 | |
| 373 | /* Register our module to receive incoming requests. */ |
| 374 | status = pjsip_endpt_register_module( app.sip_endpt, &mod_siprtp); |
| 375 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 376 | |
| 377 | /* Init calls */ |
| 378 | for (i=0; i<app.max_calls; ++i) |
| 379 | app.call[i].index = i; |
| 380 | |
| 381 | /* Done */ |
| 382 | return PJ_SUCCESS; |
| 383 | } |
| 384 | |
| 385 | |
| 386 | /* |
| 387 | * Destroy SIP |
| 388 | */ |
| 389 | static void destroy_sip() |
| 390 | { |
| 391 | unsigned i; |
| 392 | |
| 393 | app.thread_quit = 1; |
| 394 | for (i=0; i<app.thread_count; ++i) { |
| 395 | if (app.sip_thread[i]) { |
| 396 | pj_thread_join(app.sip_thread[i]); |
| 397 | pj_thread_destroy(app.sip_thread[i]); |
| 398 | app.sip_thread[i] = NULL; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | if (app.sip_endpt) { |
| 403 | pjsip_endpt_destroy(app.sip_endpt); |
| 404 | app.sip_endpt = NULL; |
| 405 | } |
| 406 | |
| 407 | } |
| 408 | |
| 409 | |
| 410 | /* |
| 411 | * Init media stack. |
| 412 | */ |
| 413 | static pj_status_t init_media() |
| 414 | { |
| 415 | unsigned i, count; |
| 416 | pj_uint16_t rtp_port; |
| 417 | pj_status_t status; |
| 418 | |
| 419 | |
| 420 | /* Initialize media endpoint so that at least error subsystem is properly |
| 421 | * initialized. |
| 422 | */ |
| 423 | #if PJ_HAS_THREADS |
| 424 | status = pjmedia_endpt_create(&app.cp.factory, NULL, 1, &app.med_endpt); |
| 425 | #else |
| 426 | status = pjmedia_endpt_create(&app.cp.factory, |
| 427 | pjsip_endpt_get_ioqueue(app.sip_endpt), |
| 428 | 0, &app.med_endpt); |
| 429 | #endif |
| 430 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 431 | |
| 432 | |
| 433 | /* Must register codecs to be supported */ |
| 434 | #if defined(PJMEDIA_HAS_G711_CODEC) && PJMEDIA_HAS_G711_CODEC!=0 |
| 435 | pjmedia_codec_g711_init(app.med_endpt); |
| 436 | #endif |
| 437 | |
| 438 | /* RTP port counter */ |
| 439 | rtp_port = (pj_uint16_t)(app.rtp_start_port & 0xFFFE); |
| 440 | |
| 441 | /* Init media transport for all calls. */ |
| 442 | for (i=0, count=0; i<app.max_calls; ++i, ++count) { |
| 443 | |
| 444 | unsigned j; |
| 445 | |
| 446 | /* Create transport for each media in the call */ |
| 447 | for (j=0; j<PJ_ARRAY_SIZE(app.call[0].media); ++j) { |
| 448 | /* Repeat binding media socket to next port when fails to bind |
| 449 | * to current port number. |
| 450 | */ |
| 451 | int retry; |
| 452 | |
| 453 | app.call[i].media[j].call_index = i; |
| 454 | app.call[i].media[j].media_index = j; |
| 455 | |
| 456 | status = -1; |
| 457 | for (retry=0; retry<100; ++retry,rtp_port+=2) { |
| 458 | struct media_stream *m = &app.call[i].media[j]; |
| 459 | |
| 460 | status = pjmedia_transport_udp_create2(app.med_endpt, |
| 461 | "siprtp", |
| 462 | &app.local_addr, |
| 463 | rtp_port, 0, |
| 464 | &m->transport); |
| 465 | if (status == PJ_SUCCESS) { |
| 466 | rtp_port += 2; |
| 467 | break; |
| 468 | } |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | if (status != PJ_SUCCESS) |
| 473 | goto on_error; |
| 474 | } |
| 475 | |
| 476 | /* Done */ |
| 477 | return PJ_SUCCESS; |
| 478 | |
| 479 | on_error: |
| 480 | destroy_media(); |
| 481 | return status; |
| 482 | } |
| 483 | |
| 484 | |
| 485 | /* |
| 486 | * Destroy media. |
| 487 | */ |
| 488 | static void destroy_media() |
| 489 | { |
| 490 | unsigned i; |
| 491 | |
| 492 | for (i=0; i<app.max_calls; ++i) { |
| 493 | unsigned j; |
| 494 | for (j=0; j<PJ_ARRAY_SIZE(app.call[0].media); ++j) { |
| 495 | struct media_stream *m = &app.call[i].media[j]; |
| 496 | |
| 497 | if (m->transport) { |
| 498 | pjmedia_transport_close(m->transport); |
| 499 | m->transport = NULL; |
| 500 | } |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | if (app.med_endpt) { |
| 505 | pjmedia_endpt_destroy(app.med_endpt); |
| 506 | app.med_endpt = NULL; |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | |
| 511 | /* |
| 512 | * Make outgoing call. |
| 513 | */ |
| 514 | static pj_status_t make_call(const pj_str_t *dst_uri) |
| 515 | { |
| 516 | unsigned i; |
| 517 | struct call *call; |
| 518 | pjsip_dialog *dlg; |
| 519 | pjmedia_sdp_session *sdp; |
| 520 | pjsip_tx_data *tdata; |
| 521 | pj_status_t status; |
| 522 | |
| 523 | |
| 524 | /* Find unused call slot */ |
| 525 | for (i=0; i<app.max_calls; ++i) { |
| 526 | if (app.call[i].inv == NULL) |
| 527 | break; |
| 528 | } |
| 529 | |
| 530 | if (i == app.max_calls) |
| 531 | return PJ_ETOOMANY; |
| 532 | |
| 533 | call = &app.call[i]; |
| 534 | |
| 535 | /* Create UAC dialog */ |
| 536 | status = pjsip_dlg_create_uac( pjsip_ua_instance(), |
| 537 | &app.local_uri, /* local URI */ |
| 538 | &app.local_contact, /* local Contact */ |
| 539 | dst_uri, /* remote URI */ |
| 540 | dst_uri, /* remote target */ |
| 541 | &dlg); /* dialog */ |
| 542 | if (status != PJ_SUCCESS) { |
| 543 | ++app.uac_calls; |
| 544 | return status; |
| 545 | } |
| 546 | |
| 547 | /* Create SDP */ |
| 548 | create_sdp( dlg->pool, call, &sdp); |
| 549 | |
| 550 | /* Create the INVITE session. */ |
| 551 | status = pjsip_inv_create_uac( dlg, sdp, 0, &call->inv); |
| 552 | if (status != PJ_SUCCESS) { |
| 553 | pjsip_dlg_terminate(dlg); |
| 554 | ++app.uac_calls; |
| 555 | return status; |
| 556 | } |
| 557 | |
| 558 | |
| 559 | /* Attach call data to invite session */ |
| 560 | call->inv->mod_data[mod_siprtp.id] = call; |
| 561 | |
| 562 | /* Mark start of call */ |
| 563 | pj_gettimeofday(&call->start_time); |
| 564 | |
| 565 | |
| 566 | /* Create initial INVITE request. |
| 567 | * This INVITE request will contain a perfectly good request and |
| 568 | * an SDP body as well. |
| 569 | */ |
| 570 | status = pjsip_inv_invite(call->inv, &tdata); |
| 571 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 572 | |
| 573 | |
| 574 | /* Send initial INVITE request. |
| 575 | * From now on, the invite session's state will be reported to us |
| 576 | * via the invite session callbacks. |
| 577 | */ |
| 578 | status = pjsip_inv_send_msg(call->inv, tdata); |
| 579 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 580 | |
| 581 | |
| 582 | return PJ_SUCCESS; |
| 583 | } |
| 584 | |
| 585 | |
| 586 | /* |
| 587 | * Receive incoming call |
| 588 | */ |
| 589 | static void process_incoming_call(pjsip_rx_data *rdata) |
| 590 | { |
| 591 | unsigned i, options; |
| 592 | struct call *call; |
| 593 | pjsip_dialog *dlg; |
| 594 | pjmedia_sdp_session *sdp; |
| 595 | pjsip_tx_data *tdata; |
| 596 | pj_status_t status; |
| 597 | |
| 598 | /* Find free call slot */ |
| 599 | for (i=0; i<app.max_calls; ++i) { |
| 600 | if (app.call[i].inv == NULL) |
| 601 | break; |
| 602 | } |
| 603 | |
| 604 | if (i == app.max_calls) { |
| 605 | const pj_str_t reason = pj_str("Too many calls"); |
| 606 | pjsip_endpt_respond_stateless( app.sip_endpt, rdata, |
| 607 | 500, &reason, |
| 608 | NULL, NULL); |
| 609 | return; |
| 610 | } |
| 611 | |
| 612 | call = &app.call[i]; |
| 613 | |
| 614 | /* Verify that we can handle the request. */ |
| 615 | options = 0; |
| 616 | status = pjsip_inv_verify_request(rdata, &options, NULL, NULL, |
| 617 | app.sip_endpt, &tdata); |
| 618 | if (status != PJ_SUCCESS) { |
| 619 | /* |
| 620 | * No we can't handle the incoming INVITE request. |
| 621 | */ |
| 622 | if (tdata) { |
| 623 | pjsip_response_addr res_addr; |
| 624 | |
| 625 | pjsip_get_response_addr(tdata->pool, rdata, &res_addr); |
| 626 | pjsip_endpt_send_response(app.sip_endpt, &res_addr, tdata, |
| 627 | NULL, NULL); |
| 628 | |
| 629 | } else { |
| 630 | |
| 631 | /* Respond with 500 (Internal Server Error) */ |
| 632 | pjsip_endpt_respond_stateless(app.sip_endpt, rdata, 500, NULL, |
| 633 | NULL, NULL); |
| 634 | } |
| 635 | |
| 636 | return; |
| 637 | } |
| 638 | |
| 639 | /* Create UAS dialog */ |
| 640 | status = pjsip_dlg_create_uas( pjsip_ua_instance(), rdata, |
| 641 | &app.local_contact, &dlg); |
| 642 | if (status != PJ_SUCCESS) { |
| 643 | const pj_str_t reason = pj_str("Unable to create dialog"); |
| 644 | pjsip_endpt_respond_stateless( app.sip_endpt, rdata, |
| 645 | 500, &reason, |
| 646 | NULL, NULL); |
| 647 | return; |
| 648 | } |
| 649 | |
| 650 | /* Create SDP */ |
| 651 | create_sdp( dlg->pool, call, &sdp); |
| 652 | |
| 653 | /* Create UAS invite session */ |
| 654 | status = pjsip_inv_create_uas( dlg, rdata, sdp, 0, &call->inv); |
| 655 | if (status != PJ_SUCCESS) { |
| 656 | pjsip_dlg_create_response(dlg, rdata, 500, NULL, &tdata); |
| 657 | pjsip_dlg_send_response(dlg, pjsip_rdata_get_tsx(rdata), tdata); |
| 658 | return; |
| 659 | } |
| 660 | |
| 661 | |
| 662 | /* Attach call data to invite session */ |
| 663 | call->inv->mod_data[mod_siprtp.id] = call; |
| 664 | |
| 665 | /* Mark start of call */ |
| 666 | pj_gettimeofday(&call->start_time); |
| 667 | |
| 668 | |
| 669 | |
| 670 | /* Create 200 response .*/ |
| 671 | status = pjsip_inv_initial_answer(call->inv, rdata, 200, |
| 672 | NULL, NULL, &tdata); |
| 673 | if (status != PJ_SUCCESS) { |
| 674 | status = pjsip_inv_initial_answer(call->inv, rdata, |
| 675 | PJSIP_SC_NOT_ACCEPTABLE, |
| 676 | NULL, NULL, &tdata); |
| 677 | if (status == PJ_SUCCESS) |
| 678 | pjsip_inv_send_msg(call->inv, tdata); |
| 679 | else |
| 680 | pjsip_inv_terminate(call->inv, 500, PJ_FALSE); |
| 681 | return; |
| 682 | } |
| 683 | |
| 684 | |
| 685 | /* Send the 200 response. */ |
| 686 | status = pjsip_inv_send_msg(call->inv, tdata); |
| 687 | PJ_ASSERT_ON_FAIL(status == PJ_SUCCESS, return); |
| 688 | |
| 689 | |
| 690 | /* Done */ |
| 691 | } |
| 692 | |
| 693 | |
| 694 | /* Callback to be called when dialog has forked: */ |
| 695 | static void call_on_forked(pjsip_inv_session *inv, pjsip_event *e) |
| 696 | { |
| 697 | PJ_UNUSED_ARG(inv); |
| 698 | PJ_UNUSED_ARG(e); |
| 699 | |
| 700 | PJ_TODO( HANDLE_FORKING ); |
| 701 | } |
| 702 | |
| 703 | |
| 704 | /* Callback to be called to handle incoming requests outside dialogs: */ |
| 705 | static pj_bool_t on_rx_request( pjsip_rx_data *rdata ) |
| 706 | { |
| 707 | /* Ignore strandled ACKs (must not send respone */ |
| 708 | if (rdata->msg_info.msg->line.req.method.id == PJSIP_ACK_METHOD) |
| 709 | return PJ_FALSE; |
| 710 | |
| 711 | /* Respond (statelessly) any non-INVITE requests with 500 */ |
| 712 | if (rdata->msg_info.msg->line.req.method.id != PJSIP_INVITE_METHOD) { |
| 713 | pj_str_t reason = pj_str("Unsupported Operation"); |
| 714 | pjsip_endpt_respond_stateless( app.sip_endpt, rdata, |
| 715 | 500, &reason, |
| 716 | NULL, NULL); |
| 717 | return PJ_TRUE; |
| 718 | } |
| 719 | |
| 720 | /* Handle incoming INVITE */ |
| 721 | process_incoming_call(rdata); |
| 722 | |
| 723 | /* Done */ |
| 724 | return PJ_TRUE; |
| 725 | } |
| 726 | |
| 727 | |
| 728 | /* Callback timer to disconnect call (limiting call duration) */ |
| 729 | static void timer_disconnect_call( pj_timer_heap_t *timer_heap, |
| 730 | struct pj_timer_entry *entry) |
| 731 | { |
| 732 | struct call *call = entry->user_data; |
| 733 | |
| 734 | PJ_UNUSED_ARG(timer_heap); |
| 735 | |
| 736 | entry->id = 0; |
| 737 | hangup_call(call->index); |
| 738 | } |
| 739 | |
| 740 | |
| 741 | /* Callback to be called when invite session's state has changed: */ |
| 742 | static void call_on_state_changed( pjsip_inv_session *inv, |
| 743 | pjsip_event *e) |
| 744 | { |
| 745 | struct call *call = inv->mod_data[mod_siprtp.id]; |
| 746 | |
| 747 | PJ_UNUSED_ARG(e); |
| 748 | |
| 749 | if (!call) |
| 750 | return; |
| 751 | |
| 752 | if (inv->state == PJSIP_INV_STATE_DISCONNECTED) { |
| 753 | |
| 754 | pj_time_val null_time = {0, 0}; |
| 755 | |
| 756 | if (call->d_timer.id != 0) { |
| 757 | pjsip_endpt_cancel_timer(app.sip_endpt, &call->d_timer); |
| 758 | call->d_timer.id = 0; |
| 759 | } |
| 760 | |
| 761 | PJ_LOG(3,(THIS_FILE, "Call #%d disconnected. Reason=%d (%.*s)", |
| 762 | call->index, |
| 763 | inv->cause, |
| 764 | (int)inv->cause_text.slen, |
| 765 | inv->cause_text.ptr)); |
| 766 | |
| 767 | if (app.call_report) { |
| 768 | PJ_LOG(3,(THIS_FILE, "Call #%d statistics:", call->index)); |
| 769 | print_call(call->index); |
| 770 | } |
| 771 | |
| 772 | |
| 773 | call->inv = NULL; |
| 774 | inv->mod_data[mod_siprtp.id] = NULL; |
| 775 | |
| 776 | destroy_call_media(call->index); |
| 777 | |
| 778 | call->start_time = null_time; |
| 779 | call->response_time = null_time; |
| 780 | call->connect_time = null_time; |
| 781 | |
| 782 | ++app.uac_calls; |
| 783 | |
| 784 | } else if (inv->state == PJSIP_INV_STATE_CONFIRMED) { |
| 785 | |
| 786 | pj_time_val t; |
| 787 | |
| 788 | pj_gettimeofday(&call->connect_time); |
| 789 | if (call->response_time.sec == 0) |
| 790 | call->response_time = call->connect_time; |
| 791 | |
| 792 | t = call->connect_time; |
| 793 | PJ_TIME_VAL_SUB(t, call->start_time); |
| 794 | |
| 795 | PJ_LOG(3,(THIS_FILE, "Call #%d connected in %d ms", call->index, |
| 796 | PJ_TIME_VAL_MSEC(t))); |
| 797 | |
| 798 | if (app.duration != 0) { |
| 799 | call->d_timer.id = 1; |
| 800 | call->d_timer.user_data = call; |
| 801 | call->d_timer.cb = &timer_disconnect_call; |
| 802 | |
| 803 | t.sec = app.duration; |
| 804 | t.msec = 0; |
| 805 | |
| 806 | pjsip_endpt_schedule_timer(app.sip_endpt, &call->d_timer, &t); |
| 807 | } |
| 808 | |
| 809 | } else if ( inv->state == PJSIP_INV_STATE_EARLY || |
| 810 | inv->state == PJSIP_INV_STATE_CONNECTING) { |
| 811 | |
| 812 | if (call->response_time.sec == 0) |
| 813 | pj_gettimeofday(&call->response_time); |
| 814 | |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | |
| 819 | /* Utility */ |
| 820 | static void app_perror(const char *sender, const char *title, |
| 821 | pj_status_t status) |
| 822 | { |
| 823 | char errmsg[PJ_ERR_MSG_SIZE]; |
| 824 | |
| 825 | pj_strerror(status, errmsg, sizeof(errmsg)); |
| 826 | PJ_LOG(3,(sender, "%s: %s [status=%d]", title, errmsg, status)); |
| 827 | } |
| 828 | |
| 829 | |
| 830 | /* Worker thread for SIP */ |
| 831 | static int sip_worker_thread(void *arg) |
| 832 | { |
| 833 | PJ_UNUSED_ARG(arg); |
| 834 | |
| 835 | while (!app.thread_quit) { |
| 836 | pj_time_val timeout = {0, 10}; |
| 837 | pjsip_endpt_handle_events(app.sip_endpt, &timeout); |
| 838 | } |
| 839 | |
| 840 | return 0; |
| 841 | } |
| 842 | |
| 843 | |
| 844 | /* Init application options */ |
| 845 | static pj_status_t init_options(int argc, char *argv[]) |
| 846 | { |
| 847 | static char ip_addr[32]; |
| 848 | static char local_uri[64]; |
| 849 | |
| 850 | enum { OPT_START, |
| 851 | OPT_APP_LOG_LEVEL, OPT_LOG_FILE, |
| 852 | OPT_A_PT, OPT_A_NAME, OPT_A_CLOCK, OPT_A_BITRATE, OPT_A_PTIME, |
| 853 | OPT_REPORT_FILE }; |
| 854 | |
| 855 | struct pj_getopt_option long_options[] = { |
| 856 | { "count", 1, 0, 'c' }, |
| 857 | { "gap", 1, 0, 'g' }, |
| 858 | { "call-report", 0, 0, 'R' }, |
| 859 | { "duration", 1, 0, 'd' }, |
| 860 | { "auto-quit", 0, 0, 'q' }, |
| 861 | { "local-port", 1, 0, 'p' }, |
| 862 | { "rtp-port", 1, 0, 'r' }, |
| 863 | { "ip-addr", 1, 0, 'i' }, |
| 864 | |
| 865 | { "log-level", 1, 0, 'l' }, |
| 866 | { "app-log-level", 1, 0, OPT_APP_LOG_LEVEL }, |
| 867 | { "log-file", 1, 0, OPT_LOG_FILE }, |
| 868 | |
| 869 | { "report-file", 1, 0, OPT_REPORT_FILE }, |
| 870 | |
| 871 | /* Don't support this anymore, see comments in USAGE above. |
| 872 | { "a-pt", 1, 0, OPT_A_PT }, |
| 873 | { "a-name", 1, 0, OPT_A_NAME }, |
| 874 | { "a-clock", 1, 0, OPT_A_CLOCK }, |
| 875 | { "a-bitrate", 1, 0, OPT_A_BITRATE }, |
| 876 | { "a-ptime", 1, 0, OPT_A_PTIME }, |
| 877 | */ |
| 878 | |
| 879 | { NULL, 0, 0, 0 }, |
| 880 | }; |
| 881 | int c; |
| 882 | int option_index; |
| 883 | |
| 884 | /* Get local IP address for the default IP address */ |
| 885 | { |
| 886 | const pj_str_t *hostname; |
| 887 | pj_sockaddr_in tmp_addr; |
| 888 | char *addr; |
| 889 | |
| 890 | hostname = pj_gethostname(); |
| 891 | pj_sockaddr_in_init(&tmp_addr, hostname, 0); |
| 892 | addr = pj_inet_ntoa(tmp_addr.sin_addr); |
| 893 | pj_ansi_strcpy(ip_addr, addr); |
| 894 | } |
| 895 | |
| 896 | /* Init defaults */ |
| 897 | app.max_calls = 1; |
| 898 | app.thread_count = 1; |
| 899 | app.sip_port = 5060; |
| 900 | app.rtp_start_port = RTP_START_PORT; |
| 901 | app.local_addr = pj_str(ip_addr); |
| 902 | app.log_level = 5; |
| 903 | app.app_log_level = 3; |
| 904 | app.log_filename = NULL; |
| 905 | |
| 906 | /* Default codecs: */ |
| 907 | app.audio_codec = audio_codecs[0]; |
| 908 | |
| 909 | /* Parse options */ |
| 910 | pj_optind = 0; |
| 911 | while((c=pj_getopt_long(argc,argv, "c:d:p:r:i:l:g:qR", |
| 912 | long_options, &option_index))!=-1) |
| 913 | { |
| 914 | switch (c) { |
| 915 | case 'c': |
| 916 | app.max_calls = atoi(pj_optarg); |
| 917 | if (app.max_calls < 0 || app.max_calls > MAX_CALLS) { |
| 918 | PJ_LOG(3,(THIS_FILE, "Invalid max calls value %s", pj_optarg)); |
| 919 | return 1; |
| 920 | } |
| 921 | break; |
| 922 | case 'g': |
| 923 | app.call_gap = atoi(pj_optarg); |
| 924 | break; |
| 925 | case 'R': |
| 926 | app.call_report = PJ_TRUE; |
| 927 | break; |
| 928 | case 'd': |
| 929 | app.duration = atoi(pj_optarg); |
| 930 | break; |
| 931 | case 'q': |
| 932 | app.auto_quit = 1; |
| 933 | break; |
| 934 | |
| 935 | case 'p': |
| 936 | app.sip_port = atoi(pj_optarg); |
| 937 | break; |
| 938 | case 'r': |
| 939 | app.rtp_start_port = atoi(pj_optarg); |
| 940 | break; |
| 941 | case 'i': |
| 942 | app.local_addr = pj_str(pj_optarg); |
| 943 | break; |
| 944 | |
| 945 | case 'l': |
| 946 | app.log_level = atoi(pj_optarg); |
| 947 | break; |
| 948 | case OPT_APP_LOG_LEVEL: |
| 949 | app.app_log_level = atoi(pj_optarg); |
| 950 | break; |
| 951 | case OPT_LOG_FILE: |
| 952 | app.log_filename = pj_optarg; |
| 953 | break; |
| 954 | |
| 955 | case OPT_A_PT: |
| 956 | app.audio_codec.pt = atoi(pj_optarg); |
| 957 | break; |
| 958 | case OPT_A_NAME: |
| 959 | app.audio_codec.name = pj_optarg; |
| 960 | break; |
| 961 | case OPT_A_CLOCK: |
| 962 | app.audio_codec.clock_rate = atoi(pj_optarg); |
| 963 | break; |
| 964 | case OPT_A_BITRATE: |
| 965 | app.audio_codec.bit_rate = atoi(pj_optarg); |
| 966 | break; |
| 967 | case OPT_A_PTIME: |
| 968 | app.audio_codec.ptime = atoi(pj_optarg); |
| 969 | break; |
| 970 | case OPT_REPORT_FILE: |
| 971 | app.report_filename = pj_optarg; |
| 972 | break; |
| 973 | |
| 974 | default: |
| 975 | puts(USAGE); |
| 976 | return 1; |
| 977 | } |
| 978 | } |
| 979 | |
| 980 | /* Check if URL is specified */ |
| 981 | if (pj_optind < argc) |
| 982 | app.uri_to_call = pj_str(argv[pj_optind]); |
| 983 | |
| 984 | /* Build local URI and contact */ |
| 985 | pj_ansi_sprintf( local_uri, "sip:%s:%d", app.local_addr.ptr, app.sip_port); |
| 986 | app.local_uri = pj_str(local_uri); |
| 987 | app.local_contact = app.local_uri; |
| 988 | |
| 989 | |
| 990 | return PJ_SUCCESS; |
| 991 | } |
| 992 | |
| 993 | |
| 994 | /***************************************************************************** |
| 995 | * MEDIA STUFFS |
| 996 | */ |
| 997 | |
| 998 | /* |
| 999 | * Create SDP session for a call. |
| 1000 | */ |
| 1001 | static pj_status_t create_sdp( pj_pool_t *pool, |
| 1002 | struct call *call, |
| 1003 | pjmedia_sdp_session **p_sdp) |
| 1004 | { |
| 1005 | pj_time_val tv; |
| 1006 | pjmedia_sdp_session *sdp; |
| 1007 | pjmedia_sdp_media *m; |
| 1008 | pjmedia_sdp_attr *attr; |
| 1009 | pjmedia_transport_info tpinfo; |
| 1010 | struct media_stream *audio = &call->media[0]; |
| 1011 | |
| 1012 | PJ_ASSERT_RETURN(pool && p_sdp, PJ_EINVAL); |
| 1013 | |
| 1014 | |
| 1015 | /* Get transport info */ |
| 1016 | pjmedia_transport_info_init(&tpinfo); |
| 1017 | pjmedia_transport_get_info(audio->transport, &tpinfo); |
| 1018 | |
| 1019 | /* Create and initialize basic SDP session */ |
| 1020 | sdp = pj_pool_zalloc (pool, sizeof(pjmedia_sdp_session)); |
| 1021 | |
| 1022 | pj_gettimeofday(&tv); |
| 1023 | sdp->origin.user = pj_str("pjsip-siprtp"); |
| 1024 | sdp->origin.version = sdp->origin.id = tv.sec + 2208988800UL; |
| 1025 | sdp->origin.net_type = pj_str("IN"); |
| 1026 | sdp->origin.addr_type = pj_str("IP4"); |
| 1027 | sdp->origin.addr = *pj_gethostname(); |
| 1028 | sdp->name = pj_str("pjsip"); |
| 1029 | |
| 1030 | /* Since we only support one media stream at present, put the |
| 1031 | * SDP connection line in the session level. |
| 1032 | */ |
| 1033 | sdp->conn = pj_pool_zalloc (pool, sizeof(pjmedia_sdp_conn)); |
| 1034 | sdp->conn->net_type = pj_str("IN"); |
| 1035 | sdp->conn->addr_type = pj_str("IP4"); |
| 1036 | sdp->conn->addr = app.local_addr; |
| 1037 | |
| 1038 | |
| 1039 | /* SDP time and attributes. */ |
| 1040 | sdp->time.start = sdp->time.stop = 0; |
| 1041 | sdp->attr_count = 0; |
| 1042 | |
| 1043 | /* Create media stream 0: */ |
| 1044 | |
| 1045 | sdp->media_count = 1; |
| 1046 | m = pj_pool_zalloc (pool, sizeof(pjmedia_sdp_media)); |
| 1047 | sdp->media[0] = m; |
| 1048 | |
| 1049 | /* Standard media info: */ |
| 1050 | m->desc.media = pj_str("audio"); |
| 1051 | m->desc.port = pj_ntohs(tpinfo.sock_info.rtp_addr_name.ipv4.sin_port); |
| 1052 | m->desc.port_count = 1; |
| 1053 | m->desc.transport = pj_str("RTP/AVP"); |
| 1054 | |
| 1055 | /* Add format and rtpmap for each codec. */ |
| 1056 | m->desc.fmt_count = 1; |
| 1057 | m->attr_count = 0; |
| 1058 | |
| 1059 | { |
| 1060 | pjmedia_sdp_rtpmap rtpmap; |
| 1061 | pjmedia_sdp_attr *attr; |
| 1062 | char ptstr[10]; |
| 1063 | |
| 1064 | sprintf(ptstr, "%d", app.audio_codec.pt); |
| 1065 | pj_strdup2(pool, &m->desc.fmt[0], ptstr); |
| 1066 | rtpmap.pt = m->desc.fmt[0]; |
| 1067 | rtpmap.clock_rate = app.audio_codec.clock_rate; |
| 1068 | rtpmap.enc_name = pj_str(app.audio_codec.name); |
| 1069 | rtpmap.param.slen = 0; |
| 1070 | |
| 1071 | pjmedia_sdp_rtpmap_to_attr(pool, &rtpmap, &attr); |
| 1072 | m->attr[m->attr_count++] = attr; |
| 1073 | } |
| 1074 | |
| 1075 | /* Add sendrecv attribute. */ |
| 1076 | attr = pj_pool_zalloc(pool, sizeof(pjmedia_sdp_attr)); |
| 1077 | attr->name = pj_str("sendrecv"); |
| 1078 | m->attr[m->attr_count++] = attr; |
| 1079 | |
| 1080 | #if 1 |
| 1081 | /* |
| 1082 | * Add support telephony event |
| 1083 | */ |
| 1084 | m->desc.fmt[m->desc.fmt_count++] = pj_str("121"); |
| 1085 | /* Add rtpmap. */ |
| 1086 | attr = pj_pool_zalloc(pool, sizeof(pjmedia_sdp_attr)); |
| 1087 | attr->name = pj_str("rtpmap"); |
| 1088 | attr->value = pj_str("121 telephone-event/8000"); |
| 1089 | m->attr[m->attr_count++] = attr; |
| 1090 | /* Add fmtp */ |
| 1091 | attr = pj_pool_zalloc(pool, sizeof(pjmedia_sdp_attr)); |
| 1092 | attr->name = pj_str("fmtp"); |
| 1093 | attr->value = pj_str("121 0-15"); |
| 1094 | m->attr[m->attr_count++] = attr; |
| 1095 | #endif |
| 1096 | |
| 1097 | /* Done */ |
| 1098 | *p_sdp = sdp; |
| 1099 | |
| 1100 | return PJ_SUCCESS; |
| 1101 | } |
| 1102 | |
| 1103 | |
| 1104 | #if (defined(PJ_WIN32) && PJ_WIN32 != 0) || (defined(PJ_WIN64) && PJ_WIN64 != 0) |
| 1105 | #include <windows.h> |
| 1106 | static void boost_priority(void) |
| 1107 | { |
| 1108 | SetPriorityClass( GetCurrentProcess(), REALTIME_PRIORITY_CLASS); |
| 1109 | SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST); |
| 1110 | } |
| 1111 | |
| 1112 | #elif defined(PJ_LINUX) && PJ_LINUX != 0 |
| 1113 | #include <pthread.h> |
| 1114 | static void boost_priority(void) |
| 1115 | { |
| 1116 | #define POLICY SCHED_FIFO |
| 1117 | struct sched_param tp; |
| 1118 | int max_prio; |
| 1119 | int policy; |
| 1120 | int rc; |
| 1121 | |
| 1122 | if (sched_get_priority_min(POLICY) < sched_get_priority_max(POLICY)) |
| 1123 | max_prio = sched_get_priority_max(POLICY)-1; |
| 1124 | else |
| 1125 | max_prio = sched_get_priority_max(POLICY)+1; |
| 1126 | |
| 1127 | /* |
| 1128 | * Adjust process scheduling algorithm and priority |
| 1129 | */ |
| 1130 | rc = sched_getparam(0, &tp); |
| 1131 | if (rc != 0) { |
| 1132 | app_perror( THIS_FILE, "sched_getparam error", |
| 1133 | PJ_RETURN_OS_ERROR(rc)); |
| 1134 | return; |
| 1135 | } |
| 1136 | tp.__sched_priority = max_prio; |
| 1137 | |
| 1138 | rc = sched_setscheduler(0, POLICY, &tp); |
| 1139 | if (rc != 0) { |
| 1140 | app_perror( THIS_FILE, "sched_setscheduler error", |
| 1141 | PJ_RETURN_OS_ERROR(rc)); |
| 1142 | } |
| 1143 | |
| 1144 | PJ_LOG(4, (THIS_FILE, "New process policy=%d, priority=%d", |
| 1145 | policy, tp.__sched_priority)); |
| 1146 | |
| 1147 | /* |
| 1148 | * Adjust thread scheduling algorithm and priority |
| 1149 | */ |
| 1150 | rc = pthread_getschedparam(pthread_self(), &policy, &tp); |
| 1151 | if (rc != 0) { |
| 1152 | app_perror( THIS_FILE, "pthread_getschedparam error", |
| 1153 | PJ_RETURN_OS_ERROR(rc)); |
| 1154 | return; |
| 1155 | } |
| 1156 | |
| 1157 | PJ_LOG(4, (THIS_FILE, "Old thread policy=%d, priority=%d", |
| 1158 | policy, tp.__sched_priority)); |
| 1159 | |
| 1160 | policy = POLICY; |
| 1161 | tp.__sched_priority = max_prio; |
| 1162 | |
| 1163 | rc = pthread_setschedparam(pthread_self(), policy, &tp); |
| 1164 | if (rc != 0) { |
| 1165 | app_perror( THIS_FILE, "pthread_setschedparam error", |
| 1166 | PJ_RETURN_OS_ERROR(rc)); |
| 1167 | return; |
| 1168 | } |
| 1169 | |
| 1170 | PJ_LOG(4, (THIS_FILE, "New thread policy=%d, priority=%d", |
| 1171 | policy, tp.__sched_priority)); |
| 1172 | } |
| 1173 | |
| 1174 | #else |
| 1175 | # define boost_priority() |
| 1176 | #endif |
| 1177 | |
| 1178 | |
| 1179 | /* |
| 1180 | * This callback is called by media transport on receipt of RTP packet. |
| 1181 | */ |
| 1182 | static void on_rx_rtp(void *user_data, void *pkt, pj_ssize_t size) |
| 1183 | { |
| 1184 | struct media_stream *strm; |
| 1185 | pj_status_t status; |
| 1186 | const pjmedia_rtp_hdr *hdr; |
| 1187 | const void *payload; |
| 1188 | unsigned payload_len; |
| 1189 | |
| 1190 | strm = user_data; |
| 1191 | |
| 1192 | /* Discard packet if media is inactive */ |
| 1193 | if (!strm->active) |
| 1194 | return; |
| 1195 | |
| 1196 | /* Check for errors */ |
| 1197 | if (size < 0) { |
| 1198 | app_perror(THIS_FILE, "RTP recv() error", (pj_status_t)-size); |
| 1199 | return; |
| 1200 | } |
| 1201 | |
| 1202 | /* Decode RTP packet. */ |
| 1203 | status = pjmedia_rtp_decode_rtp(&strm->in_sess, |
| 1204 | pkt, (int)size, |
| 1205 | &hdr, &payload, &payload_len); |
| 1206 | if (status != PJ_SUCCESS) { |
| 1207 | app_perror(THIS_FILE, "RTP decode error", status); |
| 1208 | return; |
| 1209 | } |
| 1210 | |
| 1211 | //PJ_LOG(4,(THIS_FILE, "Rx seq=%d", pj_ntohs(hdr->seq))); |
| 1212 | |
| 1213 | /* Update the RTCP session. */ |
| 1214 | pjmedia_rtcp_rx_rtp(&strm->rtcp, pj_ntohs(hdr->seq), |
| 1215 | pj_ntohl(hdr->ts), payload_len); |
| 1216 | |
| 1217 | /* Update RTP session */ |
| 1218 | pjmedia_rtp_session_update(&strm->in_sess, hdr, NULL); |
| 1219 | |
| 1220 | } |
| 1221 | |
| 1222 | /* |
| 1223 | * This callback is called by media transport on receipt of RTCP packet. |
| 1224 | */ |
| 1225 | static void on_rx_rtcp(void *user_data, void *pkt, pj_ssize_t size) |
| 1226 | { |
| 1227 | struct media_stream *strm; |
| 1228 | |
| 1229 | strm = user_data; |
| 1230 | |
| 1231 | /* Discard packet if media is inactive */ |
| 1232 | if (!strm->active) |
| 1233 | return; |
| 1234 | |
| 1235 | /* Check for errors */ |
| 1236 | if (size < 0) { |
| 1237 | app_perror(THIS_FILE, "Error receiving RTCP packet",(pj_status_t)-size); |
| 1238 | return; |
| 1239 | } |
| 1240 | |
| 1241 | /* Update RTCP session */ |
| 1242 | pjmedia_rtcp_rx_rtcp(&strm->rtcp, pkt, size); |
| 1243 | } |
| 1244 | |
| 1245 | |
| 1246 | /* |
| 1247 | * Media thread |
| 1248 | * |
| 1249 | * This is the thread to send and receive both RTP and RTCP packets. |
| 1250 | */ |
| 1251 | static int media_thread(void *arg) |
| 1252 | { |
| 1253 | enum { RTCP_INTERVAL = 5000, RTCP_RAND = 2000 }; |
| 1254 | struct media_stream *strm = arg; |
| 1255 | char packet[1500]; |
| 1256 | unsigned msec_interval; |
| 1257 | pj_timestamp freq, next_rtp, next_rtcp; |
| 1258 | |
| 1259 | |
| 1260 | /* Boost thread priority if necessary */ |
| 1261 | boost_priority(); |
| 1262 | |
| 1263 | /* Let things settle */ |
| 1264 | pj_thread_sleep(100); |
| 1265 | |
| 1266 | msec_interval = strm->samples_per_frame * 1000 / strm->clock_rate; |
| 1267 | pj_get_timestamp_freq(&freq); |
| 1268 | |
| 1269 | pj_get_timestamp(&next_rtp); |
| 1270 | next_rtp.u64 += (freq.u64 * msec_interval / 1000); |
| 1271 | |
| 1272 | next_rtcp = next_rtp; |
| 1273 | next_rtcp.u64 += (freq.u64 * (RTCP_INTERVAL+(pj_rand()%RTCP_RAND)) / 1000); |
| 1274 | |
| 1275 | |
| 1276 | while (!strm->thread_quit_flag) { |
| 1277 | pj_timestamp now, lesser; |
| 1278 | pj_time_val timeout; |
| 1279 | pj_bool_t send_rtp, send_rtcp; |
| 1280 | |
| 1281 | send_rtp = send_rtcp = PJ_FALSE; |
| 1282 | |
| 1283 | /* Determine how long to sleep */ |
| 1284 | if (next_rtp.u64 < next_rtcp.u64) { |
| 1285 | lesser = next_rtp; |
| 1286 | send_rtp = PJ_TRUE; |
| 1287 | } else { |
| 1288 | lesser = next_rtcp; |
| 1289 | send_rtcp = PJ_TRUE; |
| 1290 | } |
| 1291 | |
| 1292 | pj_get_timestamp(&now); |
| 1293 | if (lesser.u64 <= now.u64) { |
| 1294 | timeout.sec = timeout.msec = 0; |
| 1295 | //printf("immediate "); fflush(stdout); |
| 1296 | } else { |
| 1297 | pj_uint64_t tick_delay; |
| 1298 | tick_delay = lesser.u64 - now.u64; |
| 1299 | timeout.sec = 0; |
| 1300 | timeout.msec = (pj_uint32_t)(tick_delay * 1000 / freq.u64); |
| 1301 | pj_time_val_normalize(&timeout); |
| 1302 | |
| 1303 | //printf("%d:%03d ", timeout.sec, timeout.msec); fflush(stdout); |
| 1304 | } |
| 1305 | |
| 1306 | /* Wait for next interval */ |
| 1307 | //if (timeout.sec!=0 && timeout.msec!=0) { |
| 1308 | pj_thread_sleep(PJ_TIME_VAL_MSEC(timeout)); |
| 1309 | if (strm->thread_quit_flag) |
| 1310 | break; |
| 1311 | //} |
| 1312 | |
| 1313 | pj_get_timestamp(&now); |
| 1314 | |
| 1315 | if (send_rtp || next_rtp.u64 <= now.u64) { |
| 1316 | /* |
| 1317 | * Time to send RTP packet. |
| 1318 | */ |
| 1319 | pj_status_t status; |
| 1320 | const void *p_hdr; |
| 1321 | const pjmedia_rtp_hdr *hdr; |
| 1322 | pj_ssize_t size; |
| 1323 | int hdrlen; |
| 1324 | |
| 1325 | /* Format RTP header */ |
| 1326 | status = pjmedia_rtp_encode_rtp( &strm->out_sess, strm->si.tx_pt, |
| 1327 | 0, /* marker bit */ |
| 1328 | strm->bytes_per_frame, |
| 1329 | strm->samples_per_frame, |
| 1330 | &p_hdr, &hdrlen); |
| 1331 | if (status == PJ_SUCCESS) { |
| 1332 | |
| 1333 | //PJ_LOG(4,(THIS_FILE, "\t\tTx seq=%d", pj_ntohs(hdr->seq))); |
| 1334 | |
| 1335 | hdr = (const pjmedia_rtp_hdr*) p_hdr; |
| 1336 | |
| 1337 | /* Copy RTP header to packet */ |
| 1338 | pj_memcpy(packet, hdr, hdrlen); |
| 1339 | |
| 1340 | /* Zero the payload */ |
| 1341 | pj_bzero(packet+hdrlen, strm->bytes_per_frame); |
| 1342 | |
| 1343 | /* Send RTP packet */ |
| 1344 | size = hdrlen + strm->bytes_per_frame; |
| 1345 | status = pjmedia_transport_send_rtp(strm->transport, |
| 1346 | packet, size); |
| 1347 | if (status != PJ_SUCCESS) |
| 1348 | app_perror(THIS_FILE, "Error sending RTP packet", status); |
| 1349 | |
| 1350 | } else { |
| 1351 | pj_assert(!"RTP encode() error"); |
| 1352 | } |
| 1353 | |
| 1354 | /* Update RTCP SR */ |
| 1355 | pjmedia_rtcp_tx_rtp( &strm->rtcp, (pj_uint16_t)strm->bytes_per_frame); |
| 1356 | |
| 1357 | /* Schedule next send */ |
| 1358 | next_rtp.u64 += (msec_interval * freq.u64 / 1000); |
| 1359 | } |
| 1360 | |
| 1361 | |
| 1362 | if (send_rtcp || next_rtcp.u64 <= now.u64) { |
| 1363 | /* |
| 1364 | * Time to send RTCP packet. |
| 1365 | */ |
| 1366 | void *rtcp_pkt; |
| 1367 | int rtcp_len; |
| 1368 | pj_ssize_t size; |
| 1369 | pj_status_t status; |
| 1370 | |
| 1371 | /* Build RTCP packet */ |
| 1372 | pjmedia_rtcp_build_rtcp(&strm->rtcp, &rtcp_pkt, &rtcp_len); |
| 1373 | |
| 1374 | |
| 1375 | /* Send packet */ |
| 1376 | size = rtcp_len; |
| 1377 | status = pjmedia_transport_send_rtcp(strm->transport, |
| 1378 | rtcp_pkt, size); |
| 1379 | if (status != PJ_SUCCESS) { |
| 1380 | app_perror(THIS_FILE, "Error sending RTCP packet", status); |
| 1381 | } |
| 1382 | |
| 1383 | /* Schedule next send */ |
| 1384 | next_rtcp.u64 += (freq.u64 * (RTCP_INTERVAL+(pj_rand()%RTCP_RAND)) / |
| 1385 | 1000); |
| 1386 | } |
| 1387 | } |
| 1388 | |
| 1389 | return 0; |
| 1390 | } |
| 1391 | |
| 1392 | |
| 1393 | /* Callback to be called when SDP negotiation is done in the call: */ |
| 1394 | static void call_on_media_update( pjsip_inv_session *inv, |
| 1395 | pj_status_t status) |
| 1396 | { |
| 1397 | struct call *call; |
| 1398 | pj_pool_t *pool; |
| 1399 | struct media_stream *audio; |
| 1400 | const pjmedia_sdp_session *local_sdp, *remote_sdp; |
| 1401 | struct codec *codec_desc = NULL; |
| 1402 | unsigned i; |
| 1403 | |
| 1404 | call = inv->mod_data[mod_siprtp.id]; |
| 1405 | pool = inv->dlg->pool; |
| 1406 | audio = &call->media[0]; |
| 1407 | |
| 1408 | /* If this is a mid-call media update, then destroy existing media */ |
| 1409 | if (audio->thread != NULL) |
| 1410 | destroy_call_media(call->index); |
| 1411 | |
| 1412 | |
| 1413 | /* Do nothing if media negotiation has failed */ |
| 1414 | if (status != PJ_SUCCESS) { |
| 1415 | app_perror(THIS_FILE, "SDP negotiation failed", status); |
| 1416 | return; |
| 1417 | } |
| 1418 | |
| 1419 | |
| 1420 | /* Capture stream definition from the SDP */ |
| 1421 | pjmedia_sdp_neg_get_active_local(inv->neg, &local_sdp); |
| 1422 | pjmedia_sdp_neg_get_active_remote(inv->neg, &remote_sdp); |
| 1423 | |
| 1424 | status = pjmedia_stream_info_from_sdp(&audio->si, inv->pool, app.med_endpt, |
| 1425 | local_sdp, remote_sdp, 0); |
| 1426 | if (status != PJ_SUCCESS) { |
| 1427 | app_perror(THIS_FILE, "Error creating stream info from SDP", status); |
| 1428 | return; |
| 1429 | } |
| 1430 | |
| 1431 | /* Get the remainder of codec information from codec descriptor */ |
| 1432 | if (audio->si.fmt.pt == app.audio_codec.pt) |
| 1433 | codec_desc = &app.audio_codec; |
| 1434 | else { |
| 1435 | /* Find the codec description in codec array */ |
| 1436 | for (i=0; i<PJ_ARRAY_SIZE(audio_codecs); ++i) { |
| 1437 | if (audio_codecs[i].pt == audio->si.fmt.pt) { |
| 1438 | codec_desc = &audio_codecs[i]; |
| 1439 | break; |
| 1440 | } |
| 1441 | } |
| 1442 | |
| 1443 | if (codec_desc == NULL) { |
| 1444 | PJ_LOG(3, (THIS_FILE, "Error: Invalid codec payload type")); |
| 1445 | return; |
| 1446 | } |
| 1447 | } |
| 1448 | |
| 1449 | audio->clock_rate = audio->si.fmt.clock_rate; |
| 1450 | audio->samples_per_frame = audio->clock_rate * codec_desc->ptime / 1000; |
| 1451 | audio->bytes_per_frame = codec_desc->bit_rate * codec_desc->ptime / 1000 / 8; |
| 1452 | |
| 1453 | |
| 1454 | pjmedia_rtp_session_init(&audio->out_sess, audio->si.tx_pt, |
| 1455 | pj_rand()); |
| 1456 | pjmedia_rtp_session_init(&audio->in_sess, audio->si.fmt.pt, 0); |
| 1457 | pjmedia_rtcp_init(&audio->rtcp, "rtcp", audio->clock_rate, |
| 1458 | audio->samples_per_frame, 0); |
| 1459 | |
| 1460 | |
| 1461 | /* Attach media to transport */ |
| 1462 | status = pjmedia_transport_attach(audio->transport, audio, |
| 1463 | &audio->si.rem_addr, |
| 1464 | &audio->si.rem_rtcp, |
| 1465 | sizeof(pj_sockaddr_in), |
| 1466 | &on_rx_rtp, |
| 1467 | &on_rx_rtcp); |
| 1468 | if (status != PJ_SUCCESS) { |
| 1469 | app_perror(THIS_FILE, "Error on pjmedia_transport_attach()", status); |
| 1470 | return; |
| 1471 | } |
| 1472 | |
| 1473 | /* Start media thread. */ |
| 1474 | audio->thread_quit_flag = 0; |
| 1475 | #if PJ_HAS_THREADS |
| 1476 | status = pj_thread_create( inv->pool, "media", &media_thread, audio, |
| 1477 | 0, 0, &audio->thread); |
| 1478 | if (status != PJ_SUCCESS) { |
| 1479 | app_perror(THIS_FILE, "Error creating media thread", status); |
| 1480 | return; |
| 1481 | } |
| 1482 | #endif |
| 1483 | |
| 1484 | /* Set the media as active */ |
| 1485 | audio->active = PJ_TRUE; |
| 1486 | } |
| 1487 | |
| 1488 | |
| 1489 | |
| 1490 | /* Destroy call's media */ |
| 1491 | static void destroy_call_media(unsigned call_index) |
| 1492 | { |
| 1493 | struct media_stream *audio = &app.call[call_index].media[0]; |
| 1494 | |
| 1495 | if (audio) { |
| 1496 | audio->active = PJ_FALSE; |
| 1497 | |
| 1498 | if (audio->thread) { |
| 1499 | audio->thread_quit_flag = 1; |
| 1500 | pj_thread_join(audio->thread); |
| 1501 | pj_thread_destroy(audio->thread); |
| 1502 | audio->thread = NULL; |
| 1503 | audio->thread_quit_flag = 0; |
| 1504 | } |
| 1505 | |
| 1506 | pjmedia_transport_detach(audio->transport, audio); |
| 1507 | } |
| 1508 | } |
| 1509 | |
| 1510 | |
| 1511 | /***************************************************************************** |
| 1512 | * USER INTERFACE STUFFS |
| 1513 | */ |
| 1514 | |
| 1515 | static void call_get_duration(int call_index, pj_time_val *dur) |
| 1516 | { |
| 1517 | struct call *call = &app.call[call_index]; |
| 1518 | pjsip_inv_session *inv; |
| 1519 | |
| 1520 | dur->sec = dur->msec = 0; |
| 1521 | |
| 1522 | if (!call) |
| 1523 | return; |
| 1524 | |
| 1525 | inv = call->inv; |
| 1526 | if (!inv) |
| 1527 | return; |
| 1528 | |
| 1529 | if (inv->state >= PJSIP_INV_STATE_CONFIRMED && call->connect_time.sec) { |
| 1530 | |
| 1531 | pj_gettimeofday(dur); |
| 1532 | PJ_TIME_VAL_SUB((*dur), call->connect_time); |
| 1533 | } |
| 1534 | } |
| 1535 | |
| 1536 | |
| 1537 | static const char *good_number(char *buf, pj_int32_t val) |
| 1538 | { |
| 1539 | if (val < 1000) { |
| 1540 | pj_ansi_sprintf(buf, "%d", val); |
| 1541 | } else if (val < 1000000) { |
| 1542 | pj_ansi_sprintf(buf, "%d.%02dK", |
| 1543 | val / 1000, |
| 1544 | (val % 1000) / 100); |
| 1545 | } else { |
| 1546 | pj_ansi_sprintf(buf, "%d.%02dM", |
| 1547 | val / 1000000, |
| 1548 | (val % 1000000) / 10000); |
| 1549 | } |
| 1550 | |
| 1551 | return buf; |
| 1552 | } |
| 1553 | |
| 1554 | |
| 1555 | |
| 1556 | static void print_avg_stat(void) |
| 1557 | { |
| 1558 | #define MIN_(var,val) if ((int)val < (int)var) var = val |
| 1559 | #define MAX_(var,val) if ((int)val > (int)var) var = val |
| 1560 | #define AVG_(var,val) var = ( ((var * count) + val) / (count+1) ) |
| 1561 | #define BIGVAL 0x7FFFFFFFL |
| 1562 | struct stat_entry |
| 1563 | { |
| 1564 | int min, avg, max; |
| 1565 | }; |
| 1566 | |
| 1567 | struct stat_entry call_dur, call_pdd; |
| 1568 | pjmedia_rtcp_stat min_stat, avg_stat, max_stat; |
| 1569 | |
| 1570 | char srx_min[16], srx_avg[16], srx_max[16]; |
| 1571 | char brx_min[16], brx_avg[16], brx_max[16]; |
| 1572 | char stx_min[16], stx_avg[16], stx_max[16]; |
| 1573 | char btx_min[16], btx_avg[16], btx_max[16]; |
| 1574 | |
| 1575 | |
| 1576 | unsigned i, count; |
| 1577 | |
| 1578 | pj_bzero(&call_dur, sizeof(call_dur)); |
| 1579 | call_dur.min = BIGVAL; |
| 1580 | |
| 1581 | pj_bzero(&call_pdd, sizeof(call_pdd)); |
| 1582 | call_pdd.min = BIGVAL; |
| 1583 | |
| 1584 | pj_bzero(&min_stat, sizeof(min_stat)); |
| 1585 | min_stat.rx.pkt = min_stat.tx.pkt = BIGVAL; |
| 1586 | min_stat.rx.bytes = min_stat.tx.bytes = BIGVAL; |
| 1587 | min_stat.rx.loss = min_stat.tx.loss = BIGVAL; |
| 1588 | min_stat.rx.dup = min_stat.tx.dup = BIGVAL; |
| 1589 | min_stat.rx.reorder = min_stat.tx.reorder = BIGVAL; |
| 1590 | min_stat.rx.jitter.min = min_stat.tx.jitter.min = BIGVAL; |
| 1591 | min_stat.rtt.min = BIGVAL; |
| 1592 | |
| 1593 | pj_bzero(&avg_stat, sizeof(avg_stat)); |
| 1594 | pj_bzero(&max_stat, sizeof(max_stat)); |
| 1595 | |
| 1596 | |
| 1597 | for (i=0, count=0; i<app.max_calls; ++i) { |
| 1598 | |
| 1599 | struct call *call = &app.call[i]; |
| 1600 | struct media_stream *audio = &call->media[0]; |
| 1601 | pj_time_val dur; |
| 1602 | unsigned msec_dur; |
| 1603 | |
| 1604 | if (call->inv == NULL || |
| 1605 | call->inv->state < PJSIP_INV_STATE_CONFIRMED || |
| 1606 | call->connect_time.sec == 0) |
| 1607 | { |
| 1608 | continue; |
| 1609 | } |
| 1610 | |
| 1611 | /* Duration */ |
| 1612 | call_get_duration(i, &dur); |
| 1613 | msec_dur = PJ_TIME_VAL_MSEC(dur); |
| 1614 | |
| 1615 | MIN_(call_dur.min, msec_dur); |
| 1616 | MAX_(call_dur.max, msec_dur); |
| 1617 | AVG_(call_dur.avg, msec_dur); |
| 1618 | |
| 1619 | /* Connect delay */ |
| 1620 | if (call->connect_time.sec) { |
| 1621 | pj_time_val t = call->connect_time; |
| 1622 | PJ_TIME_VAL_SUB(t, call->start_time); |
| 1623 | msec_dur = PJ_TIME_VAL_MSEC(t); |
| 1624 | } else { |
| 1625 | msec_dur = 10; |
| 1626 | } |
| 1627 | |
| 1628 | MIN_(call_pdd.min, msec_dur); |
| 1629 | MAX_(call_pdd.max, msec_dur); |
| 1630 | AVG_(call_pdd.avg, msec_dur); |
| 1631 | |
| 1632 | /* RX Statistisc: */ |
| 1633 | |
| 1634 | /* Packets */ |
| 1635 | MIN_(min_stat.rx.pkt, audio->rtcp.stat.rx.pkt); |
| 1636 | MAX_(max_stat.rx.pkt, audio->rtcp.stat.rx.pkt); |
| 1637 | AVG_(avg_stat.rx.pkt, audio->rtcp.stat.rx.pkt); |
| 1638 | |
| 1639 | /* Bytes */ |
| 1640 | MIN_(min_stat.rx.bytes, audio->rtcp.stat.rx.bytes); |
| 1641 | MAX_(max_stat.rx.bytes, audio->rtcp.stat.rx.bytes); |
| 1642 | AVG_(avg_stat.rx.bytes, audio->rtcp.stat.rx.bytes); |
| 1643 | |
| 1644 | |
| 1645 | /* Packet loss */ |
| 1646 | MIN_(min_stat.rx.loss, audio->rtcp.stat.rx.loss); |
| 1647 | MAX_(max_stat.rx.loss, audio->rtcp.stat.rx.loss); |
| 1648 | AVG_(avg_stat.rx.loss, audio->rtcp.stat.rx.loss); |
| 1649 | |
| 1650 | /* Packet dup */ |
| 1651 | MIN_(min_stat.rx.dup, audio->rtcp.stat.rx.dup); |
| 1652 | MAX_(max_stat.rx.dup, audio->rtcp.stat.rx.dup); |
| 1653 | AVG_(avg_stat.rx.dup, audio->rtcp.stat.rx.dup); |
| 1654 | |
| 1655 | /* Packet reorder */ |
| 1656 | MIN_(min_stat.rx.reorder, audio->rtcp.stat.rx.reorder); |
| 1657 | MAX_(max_stat.rx.reorder, audio->rtcp.stat.rx.reorder); |
| 1658 | AVG_(avg_stat.rx.reorder, audio->rtcp.stat.rx.reorder); |
| 1659 | |
| 1660 | /* Jitter */ |
| 1661 | MIN_(min_stat.rx.jitter.min, audio->rtcp.stat.rx.jitter.min); |
| 1662 | MAX_(max_stat.rx.jitter.max, audio->rtcp.stat.rx.jitter.max); |
| 1663 | AVG_(avg_stat.rx.jitter.mean, audio->rtcp.stat.rx.jitter.mean); |
| 1664 | |
| 1665 | |
| 1666 | /* TX Statistisc: */ |
| 1667 | |
| 1668 | /* Packets */ |
| 1669 | MIN_(min_stat.tx.pkt, audio->rtcp.stat.tx.pkt); |
| 1670 | MAX_(max_stat.tx.pkt, audio->rtcp.stat.tx.pkt); |
| 1671 | AVG_(avg_stat.tx.pkt, audio->rtcp.stat.tx.pkt); |
| 1672 | |
| 1673 | /* Bytes */ |
| 1674 | MIN_(min_stat.tx.bytes, audio->rtcp.stat.tx.bytes); |
| 1675 | MAX_(max_stat.tx.bytes, audio->rtcp.stat.tx.bytes); |
| 1676 | AVG_(avg_stat.tx.bytes, audio->rtcp.stat.tx.bytes); |
| 1677 | |
| 1678 | /* Packet loss */ |
| 1679 | MIN_(min_stat.tx.loss, audio->rtcp.stat.tx.loss); |
| 1680 | MAX_(max_stat.tx.loss, audio->rtcp.stat.tx.loss); |
| 1681 | AVG_(avg_stat.tx.loss, audio->rtcp.stat.tx.loss); |
| 1682 | |
| 1683 | /* Packet dup */ |
| 1684 | MIN_(min_stat.tx.dup, audio->rtcp.stat.tx.dup); |
| 1685 | MAX_(max_stat.tx.dup, audio->rtcp.stat.tx.dup); |
| 1686 | AVG_(avg_stat.tx.dup, audio->rtcp.stat.tx.dup); |
| 1687 | |
| 1688 | /* Packet reorder */ |
| 1689 | MIN_(min_stat.tx.reorder, audio->rtcp.stat.tx.reorder); |
| 1690 | MAX_(max_stat.tx.reorder, audio->rtcp.stat.tx.reorder); |
| 1691 | AVG_(avg_stat.tx.reorder, audio->rtcp.stat.tx.reorder); |
| 1692 | |
| 1693 | /* Jitter */ |
| 1694 | MIN_(min_stat.tx.jitter.min, audio->rtcp.stat.tx.jitter.min); |
| 1695 | MAX_(max_stat.tx.jitter.max, audio->rtcp.stat.tx.jitter.max); |
| 1696 | AVG_(avg_stat.tx.jitter.mean, audio->rtcp.stat.tx.jitter.mean); |
| 1697 | |
| 1698 | |
| 1699 | /* RTT */ |
| 1700 | MIN_(min_stat.rtt.min, audio->rtcp.stat.rtt.min); |
| 1701 | MAX_(max_stat.rtt.max, audio->rtcp.stat.rtt.max); |
| 1702 | AVG_(avg_stat.rtt.mean, audio->rtcp.stat.rtt.mean); |
| 1703 | |
| 1704 | ++count; |
| 1705 | } |
| 1706 | |
| 1707 | if (count == 0) { |
| 1708 | puts("No active calls"); |
| 1709 | return; |
| 1710 | } |
| 1711 | |
| 1712 | printf("Total %d call(s) active.\n" |
| 1713 | " Average Statistics\n" |
| 1714 | " min avg max \n" |
| 1715 | " -----------------------\n" |
| 1716 | " call duration: %7d %7d %7d %s\n" |
| 1717 | " connect delay: %7d %7d %7d %s\n" |
| 1718 | " RX stat:\n" |
| 1719 | " packets: %7s %7s %7s %s\n" |
| 1720 | " payload: %7s %7s %7s %s\n" |
| 1721 | " loss: %7d %7d %7d %s\n" |
| 1722 | " percent loss: %7.3f %7.3f %7.3f %s\n" |
| 1723 | " dup: %7d %7d %7d %s\n" |
| 1724 | " reorder: %7d %7d %7d %s\n" |
| 1725 | " jitter: %7.3f %7.3f %7.3f %s\n" |
| 1726 | " TX stat:\n" |
| 1727 | " packets: %7s %7s %7s %s\n" |
| 1728 | " payload: %7s %7s %7s %s\n" |
| 1729 | " loss: %7d %7d %7d %s\n" |
| 1730 | " percent loss: %7.3f %7.3f %7.3f %s\n" |
| 1731 | " dup: %7d %7d %7d %s\n" |
| 1732 | " reorder: %7d %7d %7d %s\n" |
| 1733 | " jitter: %7.3f %7.3f %7.3f %s\n" |
| 1734 | " RTT : %7.3f %7.3f %7.3f %s\n" |
| 1735 | , |
| 1736 | count, |
| 1737 | call_dur.min/1000, call_dur.avg/1000, call_dur.max/1000, |
| 1738 | "seconds", |
| 1739 | |
| 1740 | call_pdd.min, call_pdd.avg, call_pdd.max, |
| 1741 | "ms", |
| 1742 | |
| 1743 | /* rx */ |
| 1744 | |
| 1745 | good_number(srx_min, min_stat.rx.pkt), |
| 1746 | good_number(srx_avg, avg_stat.rx.pkt), |
| 1747 | good_number(srx_max, max_stat.rx.pkt), |
| 1748 | "packets", |
| 1749 | |
| 1750 | good_number(brx_min, min_stat.rx.bytes), |
| 1751 | good_number(brx_avg, avg_stat.rx.bytes), |
| 1752 | good_number(brx_max, max_stat.rx.bytes), |
| 1753 | "bytes", |
| 1754 | |
| 1755 | min_stat.rx.loss, avg_stat.rx.loss, max_stat.rx.loss, |
| 1756 | "packets", |
| 1757 | |
| 1758 | min_stat.rx.loss*100.0/(min_stat.rx.pkt+min_stat.rx.loss), |
| 1759 | avg_stat.rx.loss*100.0/(avg_stat.rx.pkt+avg_stat.rx.loss), |
| 1760 | max_stat.rx.loss*100.0/(max_stat.rx.pkt+max_stat.rx.loss), |
| 1761 | "%", |
| 1762 | |
| 1763 | |
| 1764 | min_stat.rx.dup, avg_stat.rx.dup, max_stat.rx.dup, |
| 1765 | "packets", |
| 1766 | |
| 1767 | min_stat.rx.reorder, avg_stat.rx.reorder, max_stat.rx.reorder, |
| 1768 | "packets", |
| 1769 | |
| 1770 | min_stat.rx.jitter.min/1000.0, |
| 1771 | avg_stat.rx.jitter.mean/1000.0, |
| 1772 | max_stat.rx.jitter.max/1000.0, |
| 1773 | "ms", |
| 1774 | |
| 1775 | /* tx */ |
| 1776 | |
| 1777 | good_number(stx_min, min_stat.tx.pkt), |
| 1778 | good_number(stx_avg, avg_stat.tx.pkt), |
| 1779 | good_number(stx_max, max_stat.tx.pkt), |
| 1780 | "packets", |
| 1781 | |
| 1782 | good_number(btx_min, min_stat.tx.bytes), |
| 1783 | good_number(btx_avg, avg_stat.tx.bytes), |
| 1784 | good_number(btx_max, max_stat.tx.bytes), |
| 1785 | "bytes", |
| 1786 | |
| 1787 | min_stat.tx.loss, avg_stat.tx.loss, max_stat.tx.loss, |
| 1788 | "packets", |
| 1789 | |
| 1790 | min_stat.tx.loss*100.0/(min_stat.tx.pkt+min_stat.tx.loss), |
| 1791 | avg_stat.tx.loss*100.0/(avg_stat.tx.pkt+avg_stat.tx.loss), |
| 1792 | max_stat.tx.loss*100.0/(max_stat.tx.pkt+max_stat.tx.loss), |
| 1793 | "%", |
| 1794 | |
| 1795 | min_stat.tx.dup, avg_stat.tx.dup, max_stat.tx.dup, |
| 1796 | "packets", |
| 1797 | |
| 1798 | min_stat.tx.reorder, avg_stat.tx.reorder, max_stat.tx.reorder, |
| 1799 | "packets", |
| 1800 | |
| 1801 | min_stat.tx.jitter.min/1000.0, |
| 1802 | avg_stat.tx.jitter.mean/1000.0, |
| 1803 | max_stat.tx.jitter.max/1000.0, |
| 1804 | "ms", |
| 1805 | |
| 1806 | /* rtt */ |
| 1807 | min_stat.rtt.min/1000.0, |
| 1808 | avg_stat.rtt.mean/1000.0, |
| 1809 | max_stat.rtt.max/1000.0, |
| 1810 | "ms" |
| 1811 | ); |
| 1812 | |
| 1813 | } |
| 1814 | |
| 1815 | |
| 1816 | #include "siprtp_report.c" |
| 1817 | |
| 1818 | |
| 1819 | static void list_calls() |
| 1820 | { |
| 1821 | unsigned i; |
| 1822 | puts("List all calls:"); |
| 1823 | for (i=0; i<app.max_calls; ++i) { |
| 1824 | if (!app.call[i].inv) |
| 1825 | continue; |
| 1826 | print_call(i); |
| 1827 | } |
| 1828 | } |
| 1829 | |
| 1830 | static void hangup_call(unsigned index) |
| 1831 | { |
| 1832 | pjsip_tx_data *tdata; |
| 1833 | pj_status_t status; |
| 1834 | |
| 1835 | if (app.call[index].inv == NULL) |
| 1836 | return; |
| 1837 | |
| 1838 | status = pjsip_inv_end_session(app.call[index].inv, 603, NULL, &tdata); |
| 1839 | if (status==PJ_SUCCESS && tdata!=NULL) |
| 1840 | pjsip_inv_send_msg(app.call[index].inv, tdata); |
| 1841 | } |
| 1842 | |
| 1843 | static void hangup_all_calls() |
| 1844 | { |
| 1845 | unsigned i; |
| 1846 | for (i=0; i<app.max_calls; ++i) { |
| 1847 | if (!app.call[i].inv) |
| 1848 | continue; |
| 1849 | hangup_call(i); |
| 1850 | pj_thread_sleep(app.call_gap); |
| 1851 | } |
| 1852 | |
| 1853 | /* Wait until all calls are terminated */ |
| 1854 | for (i=0; i<app.max_calls; ++i) { |
| 1855 | while (app.call[i].inv) |
| 1856 | pj_thread_sleep(10); |
| 1857 | } |
| 1858 | } |
| 1859 | |
| 1860 | static pj_bool_t simple_input(const char *title, char *buf, pj_size_t len) |
| 1861 | { |
| 1862 | char *p; |
| 1863 | |
| 1864 | printf("%s (empty to cancel): ", title); fflush(stdout); |
| 1865 | if (fgets(buf, (int)len, stdin) == NULL) |
| 1866 | return PJ_FALSE; |
| 1867 | |
| 1868 | /* Remove trailing newlines. */ |
| 1869 | for (p=buf; ; ++p) { |
| 1870 | if (*p=='\r' || *p=='\n') *p='\0'; |
| 1871 | else if (!*p) break; |
| 1872 | } |
| 1873 | |
| 1874 | if (!*buf) |
| 1875 | return PJ_FALSE; |
| 1876 | |
| 1877 | return PJ_TRUE; |
| 1878 | } |
| 1879 | |
| 1880 | |
| 1881 | static const char *MENU = |
| 1882 | "\n" |
| 1883 | "Enter menu character:\n" |
| 1884 | " s Summary\n" |
| 1885 | " l List all calls\n" |
| 1886 | " h Hangup a call\n" |
| 1887 | " H Hangup all calls\n" |
| 1888 | " q Quit\n" |
| 1889 | "\n"; |
| 1890 | |
| 1891 | |
| 1892 | /* Main screen menu */ |
| 1893 | static void console_main() |
| 1894 | { |
| 1895 | char input1[10]; |
| 1896 | unsigned i; |
| 1897 | |
| 1898 | printf("%s", MENU); |
| 1899 | |
| 1900 | for (;;) { |
| 1901 | printf(">>> "); fflush(stdout); |
| 1902 | if (fgets(input1, sizeof(input1), stdin) == NULL) { |
| 1903 | puts("EOF while reading stdin, will quit now.."); |
| 1904 | break; |
| 1905 | } |
| 1906 | |
| 1907 | switch (input1[0]) { |
| 1908 | |
| 1909 | case 's': |
| 1910 | print_avg_stat(); |
| 1911 | break; |
| 1912 | |
| 1913 | case 'l': |
| 1914 | list_calls(); |
| 1915 | break; |
| 1916 | |
| 1917 | case 'h': |
| 1918 | if (!simple_input("Call number to hangup", input1, sizeof(input1))) |
| 1919 | break; |
| 1920 | |
| 1921 | i = atoi(input1); |
| 1922 | hangup_call(i); |
| 1923 | break; |
| 1924 | |
| 1925 | case 'H': |
| 1926 | hangup_all_calls(); |
| 1927 | break; |
| 1928 | |
| 1929 | case 'q': |
| 1930 | goto on_exit; |
| 1931 | |
| 1932 | default: |
| 1933 | puts("Invalid command"); |
| 1934 | printf("%s", MENU); |
| 1935 | break; |
| 1936 | } |
| 1937 | |
| 1938 | fflush(stdout); |
| 1939 | } |
| 1940 | |
| 1941 | on_exit: |
| 1942 | hangup_all_calls(); |
| 1943 | } |
| 1944 | |
| 1945 | |
| 1946 | /***************************************************************************** |
| 1947 | * Below is a simple module to log all incoming and outgoing SIP messages |
| 1948 | */ |
| 1949 | |
| 1950 | |
| 1951 | /* Notification on incoming messages */ |
| 1952 | static pj_bool_t logger_on_rx_msg(pjsip_rx_data *rdata) |
| 1953 | { |
| 1954 | PJ_LOG(4,(THIS_FILE, "RX %d bytes %s from %s:%d:\n" |
| 1955 | "%s\n" |
| 1956 | "--end msg--", |
| 1957 | rdata->msg_info.len, |
| 1958 | pjsip_rx_data_get_info(rdata), |
| 1959 | rdata->pkt_info.src_name, |
| 1960 | rdata->pkt_info.src_port, |
| 1961 | rdata->msg_info.msg_buf)); |
| 1962 | |
| 1963 | /* Always return false, otherwise messages will not get processed! */ |
| 1964 | return PJ_FALSE; |
| 1965 | } |
| 1966 | |
| 1967 | /* Notification on outgoing messages */ |
| 1968 | static pj_status_t logger_on_tx_msg(pjsip_tx_data *tdata) |
| 1969 | { |
| 1970 | |
| 1971 | /* Important note: |
| 1972 | * tp_info field is only valid after outgoing messages has passed |
| 1973 | * transport layer. So don't try to access tp_info when the module |
| 1974 | * has lower priority than transport layer. |
| 1975 | */ |
| 1976 | |
| 1977 | PJ_LOG(4,(THIS_FILE, "TX %d bytes %s to %s:%d:\n" |
| 1978 | "%s\n" |
| 1979 | "--end msg--", |
| 1980 | (tdata->buf.cur - tdata->buf.start), |
| 1981 | pjsip_tx_data_get_info(tdata), |
| 1982 | tdata->tp_info.dst_name, |
| 1983 | tdata->tp_info.dst_port, |
| 1984 | tdata->buf.start)); |
| 1985 | |
| 1986 | /* Always return success, otherwise message will not get sent! */ |
| 1987 | return PJ_SUCCESS; |
| 1988 | } |
| 1989 | |
| 1990 | /* The module instance. */ |
| 1991 | static pjsip_module msg_logger = |
| 1992 | { |
| 1993 | NULL, NULL, /* prev, next. */ |
| 1994 | { "mod-siprtp-log", 14 }, /* Name. */ |
| 1995 | -1, /* Id */ |
| 1996 | PJSIP_MOD_PRIORITY_TRANSPORT_LAYER-1,/* Priority */ |
| 1997 | NULL, /* load() */ |
| 1998 | NULL, /* start() */ |
| 1999 | NULL, /* stop() */ |
| 2000 | NULL, /* unload() */ |
| 2001 | &logger_on_rx_msg, /* on_rx_request() */ |
| 2002 | &logger_on_rx_msg, /* on_rx_response() */ |
| 2003 | &logger_on_tx_msg, /* on_tx_request. */ |
| 2004 | &logger_on_tx_msg, /* on_tx_response() */ |
| 2005 | NULL, /* on_tsx_state() */ |
| 2006 | |
| 2007 | }; |
| 2008 | |
| 2009 | |
| 2010 | |
| 2011 | /***************************************************************************** |
| 2012 | * Console application custom logging: |
| 2013 | */ |
| 2014 | |
| 2015 | |
| 2016 | static FILE *log_file; |
| 2017 | |
| 2018 | |
| 2019 | static void app_log_writer(int level, const char *buffer, int len) |
| 2020 | { |
| 2021 | /* Write to both stdout and file. */ |
| 2022 | |
| 2023 | if (level <= app.app_log_level) |
| 2024 | pj_log_write(level, buffer, len); |
| 2025 | |
| 2026 | if (log_file) { |
| 2027 | pj_size_t count = fwrite(buffer, len, 1, log_file); |
| 2028 | PJ_UNUSED_ARG(count); |
| 2029 | fflush(log_file); |
| 2030 | } |
| 2031 | } |
| 2032 | |
| 2033 | |
| 2034 | pj_status_t app_logging_init(void) |
| 2035 | { |
| 2036 | /* Redirect log function to ours */ |
| 2037 | |
| 2038 | pj_log_set_log_func( &app_log_writer ); |
| 2039 | |
| 2040 | /* If output log file is desired, create the file: */ |
| 2041 | |
| 2042 | if (app.log_filename) { |
| 2043 | log_file = fopen(app.log_filename, "wt"); |
| 2044 | if (log_file == NULL) { |
| 2045 | PJ_LOG(1,(THIS_FILE, "Unable to open log file %s", |
| 2046 | app.log_filename)); |
| 2047 | return -1; |
| 2048 | } |
| 2049 | } |
| 2050 | |
| 2051 | return PJ_SUCCESS; |
| 2052 | } |
| 2053 | |
| 2054 | |
| 2055 | void app_logging_shutdown(void) |
| 2056 | { |
| 2057 | /* Close logging file, if any: */ |
| 2058 | |
| 2059 | if (log_file) { |
| 2060 | fclose(log_file); |
| 2061 | log_file = NULL; |
| 2062 | } |
| 2063 | } |
| 2064 | |
| 2065 | |
| 2066 | /* |
| 2067 | * main() |
| 2068 | */ |
| 2069 | int main(int argc, char *argv[]) |
| 2070 | { |
| 2071 | unsigned i; |
| 2072 | pj_status_t status; |
| 2073 | |
| 2074 | /* Must init PJLIB first */ |
| 2075 | status = pj_init(); |
| 2076 | if (status != PJ_SUCCESS) |
| 2077 | return 1; |
| 2078 | |
| 2079 | /* Get command line options */ |
| 2080 | status = init_options(argc, argv); |
| 2081 | if (status != PJ_SUCCESS) |
| 2082 | return 1; |
| 2083 | |
| 2084 | /* Verify options: */ |
| 2085 | |
| 2086 | /* Auto-quit can not be specified for UAS */ |
| 2087 | if (app.auto_quit && app.uri_to_call.slen == 0) { |
| 2088 | printf("Error: --auto-quit option only valid for outgoing " |
| 2089 | "mode (UAC) only\n"); |
| 2090 | return 1; |
| 2091 | } |
| 2092 | |
| 2093 | /* Init logging */ |
| 2094 | status = app_logging_init(); |
| 2095 | if (status != PJ_SUCCESS) |
| 2096 | return 1; |
| 2097 | |
| 2098 | /* Init SIP etc */ |
| 2099 | status = init_sip(); |
| 2100 | if (status != PJ_SUCCESS) { |
| 2101 | app_perror(THIS_FILE, "Initialization has failed", status); |
| 2102 | destroy_sip(); |
| 2103 | return 1; |
| 2104 | } |
| 2105 | |
| 2106 | /* Register module to log incoming/outgoing messages */ |
| 2107 | pjsip_endpt_register_module(app.sip_endpt, &msg_logger); |
| 2108 | |
| 2109 | /* Init media */ |
| 2110 | status = init_media(); |
| 2111 | if (status != PJ_SUCCESS) { |
| 2112 | app_perror(THIS_FILE, "Media initialization failed", status); |
| 2113 | destroy_sip(); |
| 2114 | return 1; |
| 2115 | } |
| 2116 | |
| 2117 | /* Start worker threads */ |
| 2118 | #if PJ_HAS_THREADS |
| 2119 | for (i=0; i<app.thread_count; ++i) { |
| 2120 | pj_thread_create( app.pool, "app", &sip_worker_thread, NULL, |
| 2121 | 0, 0, &app.sip_thread[i]); |
| 2122 | } |
| 2123 | #endif |
| 2124 | |
| 2125 | /* If URL is specified, then make call immediately */ |
| 2126 | if (app.uri_to_call.slen) { |
| 2127 | unsigned i; |
| 2128 | |
| 2129 | PJ_LOG(3,(THIS_FILE, "Making %d calls to %s..", app.max_calls, |
| 2130 | app.uri_to_call.ptr)); |
| 2131 | |
| 2132 | for (i=0; i<app.max_calls; ++i) { |
| 2133 | status = make_call(&app.uri_to_call); |
| 2134 | if (status != PJ_SUCCESS) { |
| 2135 | app_perror(THIS_FILE, "Error making call", status); |
| 2136 | break; |
| 2137 | } |
| 2138 | pj_thread_sleep(app.call_gap); |
| 2139 | } |
| 2140 | |
| 2141 | if (app.auto_quit) { |
| 2142 | /* Wait for calls to complete */ |
| 2143 | while (app.uac_calls < app.max_calls) |
| 2144 | pj_thread_sleep(100); |
| 2145 | pj_thread_sleep(200); |
| 2146 | } else { |
| 2147 | #if PJ_HAS_THREADS |
| 2148 | /* Start user interface loop */ |
| 2149 | console_main(); |
| 2150 | #endif |
| 2151 | } |
| 2152 | |
| 2153 | } else { |
| 2154 | |
| 2155 | PJ_LOG(3,(THIS_FILE, "Ready for incoming calls (max=%d)", |
| 2156 | app.max_calls)); |
| 2157 | |
| 2158 | #if PJ_HAS_THREADS |
| 2159 | /* Start user interface loop */ |
| 2160 | console_main(); |
| 2161 | #endif |
| 2162 | } |
| 2163 | |
| 2164 | #if !PJ_HAS_THREADS |
| 2165 | PJ_LOG(3,(THIS_FILE, "Press Ctrl-C to quit")); |
| 2166 | for (;;) { |
| 2167 | pj_time_val t = {0, 10}; |
| 2168 | pjsip_endpt_handle_events(app.sip_endpt, &t); |
| 2169 | } |
| 2170 | #endif |
| 2171 | |
| 2172 | /* Shutting down... */ |
| 2173 | destroy_sip(); |
| 2174 | destroy_media(); |
| 2175 | |
| 2176 | if (app.pool) { |
| 2177 | pj_pool_release(app.pool); |
| 2178 | app.pool = NULL; |
| 2179 | pj_caching_pool_destroy(&app.cp); |
| 2180 | } |
| 2181 | |
| 2182 | app_logging_shutdown(); |
| 2183 | |
| 2184 | /* Shutdown PJLIB */ |
| 2185 | pj_shutdown(); |
| 2186 | |
| 2187 | return 0; |
| 2188 | } |
| 2189 | |