| File: | libsofia-sip-ua/nea/nea_server.c |
| Warning: | line 1579, column 4 Although the value stored to 'retval' is used in the enclosing expression, the value is never actually read from 'retval' |
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| 1 | /* |
| 2 | * This file is part of the Sofia-SIP package |
| 3 | * |
| 4 | * Copyright (C) 2005 Nokia Corporation. |
| 5 | * |
| 6 | * Contact: Pekka Pessi <pekka.pessi@nokia.com> |
| 7 | * |
| 8 | * This library is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public License |
| 10 | * as published by the Free Software Foundation; either version 2.1 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This library is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with this library; if not, write to the Free Software |
| 20 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| 21 | * 02110-1301 USA |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | /**@internal @file nea_server.c |
| 26 | * @brief Nokia Event API - event notifier implementation. |
| 27 | * |
| 28 | * @author Pekka Pessi <Pekka.Pessi@nokia.com> |
| 29 | * @author Martti Mela <Martti.Mela@nokia.com> |
| 30 | * |
| 31 | * @date Created: Wed Feb 14 18:37:04 EET 2001 ppessi |
| 32 | */ |
| 33 | |
| 34 | #include "config.h" |
| 35 | |
| 36 | #include <sofia-sip/sip.h> |
| 37 | #include <sofia-sip/sip_header.h> |
| 38 | #include <sofia-sip/sip_util.h> |
| 39 | #include <sofia-sip/sip_status.h> |
| 40 | #include <sofia-sip/su_tagarg.h> |
| 41 | |
| 42 | #include "nea_debug.h" |
| 43 | |
| 44 | #ifndef _MSC_VER |
| 45 | #define NONE((void *)- 1) ((void *)- 1) |
| 46 | #else |
| 47 | #define NONE((void *)- 1) ((void *)(INT_PTR)- 1) |
| 48 | #endif |
| 49 | |
| 50 | #define SU_ROOT_MAGIC_Tstruct nea_server_s struct nea_server_s |
| 51 | #define SU_MSG_ARG_Ttagi_t tagi_t |
| 52 | |
| 53 | #define NTA_AGENT_MAGIC_Tstruct nea_server_s struct nea_server_s |
| 54 | #define NTA_LEG_MAGIC_Tstruct nea_sub_s struct nea_sub_s |
| 55 | #define NTA_INCOMING_MAGIC_Tstruct nea_sub_s struct nea_sub_s |
| 56 | #define NTA_OUTGOING_MAGIC_Tstruct nea_sub_s struct nea_sub_s |
| 57 | |
| 58 | #include <sofia-sip/nea.h> |
| 59 | #include <sofia-sip/htable.h> |
| 60 | |
| 61 | #include <stddef.h> |
| 62 | #include <stdlib.h> |
| 63 | #include <string.h> |
| 64 | #include <stdio.h> |
| 65 | #include <stdarg.h> |
| 66 | #include <assert.h> |
| 67 | #include <limits.h> |
| 68 | |
| 69 | /** Number of primary views (with different MIME type or content) */ |
| 70 | #define NEA_VIEW_MAX(8) (8) |
| 71 | |
| 72 | /** @internal Server object, created for every notifier. |
| 73 | */ |
| 74 | struct nea_server_s { |
| 75 | su_home_t nes_home[1]; |
| 76 | su_root_t *nes_root; |
| 77 | su_timer_t *nes_timer; |
| 78 | |
| 79 | nta_agent_t *nes_agent; |
| 80 | nta_leg_t *nes_leg; |
| 81 | |
| 82 | nea_sub_t *nes_subscribers; |
| 83 | |
| 84 | sip_require_t *nes_require; |
| 85 | |
| 86 | sip_time_t nes_min_expires; |
| 87 | sip_time_t nes_expires; |
| 88 | sip_time_t nes_max_expires; |
| 89 | |
| 90 | int nes_max_subs; |
| 91 | unsigned nes_throttle; /**< Default throttle */ |
| 92 | unsigned nes_min_throttle; /**< Minimum throttle */ |
| 93 | unsigned nes_eventlist:1; /**< Eventlist only */ |
| 94 | unsigned nes_in_callback : 1; |
| 95 | unsigned nes_pending_destroy : 1; |
| 96 | unsigned nes_pending_flush : 1; |
| 97 | unsigned nes_202_before_notify:1; |
| 98 | |
| 99 | unsigned nes_in_list; |
| 100 | |
| 101 | unsigned nes_throttled; /**< Throttled notifications? */ |
| 102 | |
| 103 | char const *nes_server; |
| 104 | |
| 105 | sip_contact_t *nes_eventity_uri; |
| 106 | sip_allow_events_t *nes_allow_events; |
| 107 | |
| 108 | sip_allow_t *nes_allow_methods; |
| 109 | |
| 110 | nea_new_event_f *nes_callback; |
| 111 | nea_smagic_t *nes_context; |
| 112 | |
| 113 | /** Events. |
| 114 | * Each subscriber will be added to one of these. */ |
| 115 | nea_event_t *nes_events; |
| 116 | }; |
| 117 | |
| 118 | |
| 119 | /** @internal Supported events and their subscribers */ |
| 120 | struct nea_event_s { |
| 121 | nea_event_t *ev_next; |
| 122 | nea_event_t **ev_prev; |
| 123 | |
| 124 | nea_watcher_f *ev_callback; |
| 125 | nea_emagic_t *ev_magic; |
| 126 | |
| 127 | unsigned ev_throttle; /**< Default throttle */ |
| 128 | unsigned ev_min_throttle; /**< Minimum throttle */ |
| 129 | unsigned ev_eventlist:1; /**< Eventlist is supported */ |
| 130 | unsigned ev_reliable:1; /**< Keep all notifications */ |
| 131 | unsigned :0; |
| 132 | |
| 133 | /** Sequence number of first unsent update */ |
| 134 | unsigned ev_throttling; |
| 135 | unsigned ev_updated; /**< Sequence number for updates */ |
| 136 | sip_require_t *ev_require; /**< Required features */ |
| 137 | sip_supported_t *ev_supported; /**< Supported features */ |
| 138 | |
| 139 | sip_event_t *ev_event; |
| 140 | sip_accept_t const *ev_default;/**< Default content type */ |
| 141 | sip_accept_t const *ev_accept; /**< Supported content types */ |
| 142 | |
| 143 | nea_event_view_t *ev_views[NEA_VIEW_MAX(8) + 1]; |
| 144 | }; |
| 145 | |
| 146 | typedef struct nea_event_queue_s nea_event_queue_t; |
| 147 | |
| 148 | /** @internal Object representing particular view of event */ |
| 149 | struct nea_event_view_s |
| 150 | { |
| 151 | nea_event_view_t *evv_next; |
| 152 | nea_event_view_t *evv_primary; /**< Backpointer to the primary view */ |
| 153 | |
| 154 | nea_evmagic_t *evv_magic; |
| 155 | |
| 156 | unsigned evv_throttle; /**< Default throttle */ |
| 157 | unsigned evv_min_throttle; /**< Minimum throttle */ |
| 158 | unsigned evv_fake:1; /**< This is "fake" (ie. default) view */ |
| 159 | unsigned evv_private:1; /**< This is private view */ |
| 160 | unsigned evv_reliable:1; /**< Keep all notifications */ |
| 161 | unsigned:0; |
| 162 | |
| 163 | /** @internal Queued notification */ |
| 164 | struct nea_event_queue_s |
| 165 | { |
| 166 | nea_event_queue_t *evq_next; |
| 167 | unsigned evq_updated; |
| 168 | unsigned evq_version; |
| 169 | sip_content_type_t *evq_content_type; |
| 170 | sip_payload_t *evq_payload; |
| 171 | } evv_head[1]; |
| 172 | }; |
| 173 | |
| 174 | #define evv_versionevv_head->evq_version evv_head->evq_version |
| 175 | #define evv_updatedevv_head->evq_updated evv_head->evq_updated |
| 176 | #define evv_content_typeevv_head->evq_content_type evv_head->evq_content_type |
| 177 | #define evv_payloadevv_head->evq_payload evv_head->evq_payload |
| 178 | |
| 179 | |
| 180 | /** @internal Subscription object. |
| 181 | */ |
| 182 | struct nea_sub_s { |
| 183 | nea_sub_t *s_next; |
| 184 | nea_sub_t **s_prev; |
| 185 | |
| 186 | nta_leg_t *s_leg; |
| 187 | nta_incoming_t *s_irq; |
| 188 | nta_outgoing_t *s_oreq; |
| 189 | |
| 190 | nea_server_t *s_nes; |
| 191 | |
| 192 | sip_contact_t *s_local; /**< Local contact */ |
| 193 | |
| 194 | sip_from_t *s_from; |
| 195 | sip_contact_t *s_remote; /**< Remote contact */ |
| 196 | /* sip_accept_t *s_accept; */ |
| 197 | sip_event_t *s_id; |
| 198 | |
| 199 | nea_event_t *s_event; |
| 200 | nea_event_view_t *s_view; |
| 201 | nea_state_t s_state; |
| 202 | |
| 203 | char const *s_extended; |
| 204 | |
| 205 | sip_content_type_t *s_content_type; /** Content-Type of SUBSCRIBE body. */ |
| 206 | sip_payload_t *s_payload; /**< Body of SUBSCRIBE. */ |
| 207 | |
| 208 | unsigned s_reported :1 ; /**< Made watcher report upon un-SUBSCRIBE */ |
| 209 | |
| 210 | unsigned s_processing : 1; |
| 211 | unsigned s_rejected : 1; |
| 212 | unsigned s_pending_flush : 1; |
| 213 | unsigned s_garbage : 1; |
| 214 | unsigned s_fake : 1; /**< Do not send real information to user */ |
| 215 | unsigned s_eventlist : 1; /**< Subscriber supported eventlist */ |
| 216 | |
| 217 | sip_time_t s_subscribed; /**< When first SUBSCRIBE was recv */ |
| 218 | sip_time_t s_notified; /**< When last notification was sent */ |
| 219 | sip_time_t s_expires; /**< Expiration time. */ |
| 220 | |
| 221 | unsigned s_version; /**< Version number set by application */ |
| 222 | |
| 223 | unsigned s_latest; /**< External version of latest payload */ |
| 224 | unsigned s_updated; /**< Internal version of latest payload */ |
| 225 | unsigned s_throttle; /**< Minimum time between notifications */ |
| 226 | }; |
| 227 | |
| 228 | /* Prototypes */ |
| 229 | |
| 230 | static void nea_server_pending_flush(nea_server_t *nes); |
| 231 | |
| 232 | static int nea_view_update(nea_server_t *nes, |
| 233 | nea_event_t *ev, |
| 234 | nea_event_view_t **evvp, |
| 235 | int private, |
| 236 | int fake, |
| 237 | tag_type_t tag, |
| 238 | tag_value_t value, |
| 239 | ...); |
| 240 | |
| 241 | static nea_sub_t *nea_sub_create(nea_server_t *nes); |
| 242 | static int nea_sub_is_removed(nea_sub_t const *s); |
| 243 | static void nea_sub_remove(nea_sub_t *s); |
| 244 | static void nea_sub_destroy(nea_sub_t *s); |
| 245 | |
| 246 | static |
| 247 | int nea_server_callback(nea_sub_t *nes_as_sub, |
| 248 | nta_leg_t *leg, |
| 249 | nta_incoming_t *irq, |
| 250 | sip_t const *sip); |
| 251 | |
| 252 | static int nea_sub_process_incoming(nea_sub_t *s, |
| 253 | nta_leg_t *leg, |
| 254 | nta_incoming_t *irq, |
| 255 | sip_t const *sip); |
| 256 | |
| 257 | static int nea_sub_process_subscribe(nea_sub_t *s, |
| 258 | nta_leg_t *leg, |
| 259 | nta_incoming_t *irq, |
| 260 | sip_t const *sip); |
| 261 | |
| 262 | static int nea_sub_notify(nea_server_t *nes, |
| 263 | nea_sub_t *s, |
| 264 | sip_time_t now, |
| 265 | tag_type_t tag, tag_value_t value, ...); |
| 266 | |
| 267 | static int response_to_notify(nea_sub_t *s, |
| 268 | nta_outgoing_t *oreq, |
| 269 | sip_t const *sip); |
| 270 | |
| 271 | static void nes_event_timer(nea_server_t *nes, |
| 272 | su_timer_t *timer, |
| 273 | su_timer_arg_t *arg); |
| 274 | |
| 275 | static int nea_view_queue(nea_server_t *nes, |
| 276 | nea_event_view_t *evv, |
| 277 | nea_event_queue_t *evq); |
| 278 | |
| 279 | /** Assign an event view to subscriber. */ |
| 280 | su_inlinestatic inline |
| 281 | void nea_sub_assign_view(nea_sub_t *s, nea_event_view_t *evv) |
| 282 | { |
| 283 | if (s->s_view != evv) |
| 284 | /* Make sure we send a notification */ |
| 285 | s->s_updated = evv->evv_updatedevv_head->evq_updated - 1; |
| 286 | s->s_view = evv; |
| 287 | s->s_throttle = evv->evv_throttle; |
| 288 | } |
| 289 | |
| 290 | su_inlinestatic inline |
| 291 | void nea_subnode_init(nea_subnode_t *sn, nea_sub_t *s, sip_time_t now) |
| 292 | { |
| 293 | sn->sn_state = s->s_state; |
| 294 | sn->sn_fake = s->s_fake; |
| 295 | sn->sn_subscriber = s; |
| 296 | sn->sn_event = s->s_event; |
| 297 | sn->sn_remote = s->s_from; |
| 298 | sn->sn_contact = s->s_remote; |
| 299 | sn->sn_content_type = s->s_content_type; |
| 300 | sn->sn_payload = s->s_payload; |
| 301 | if (s->s_expires != 0 && (int)(s->s_expires - now) > 0) |
| 302 | sn->sn_expires = s->s_expires - now; |
| 303 | else |
| 304 | sn->sn_expires = 0; |
| 305 | sn->sn_latest = s->s_latest; |
| 306 | sn->sn_throttle = s->s_throttle; |
| 307 | sn->sn_eventlist = s->s_eventlist; |
| 308 | sn->sn_version = s->s_version; |
| 309 | sn->sn_subscribed = now - s->s_subscribed; |
| 310 | sn->sn_notified = s->s_notified; |
| 311 | sn->sn_view = s->s_view; |
| 312 | } |
| 313 | |
| 314 | /** Create an event server. |
| 315 | * |
| 316 | * The function nea_server_create() initializes an event server object and |
| 317 | * registers it with @b nta. An event server object takes care of all events |
| 318 | * for a particular URI (@em eventity). |
| 319 | * |
| 320 | * @param agent pointer to an @b nta agent object |
| 321 | * @param root pointer to an @b root object |
| 322 | * @param url url of the server to be created |
| 323 | * @param max_subs maximum number of subscriptions |
| 324 | * @param callback authorization function, |
| 325 | * or @c NULL if no authorization is required |
| 326 | * @param context server context (pointer to application data) |
| 327 | * @param tag, value, ... optional list of tag parameters |
| 328 | * |
| 329 | * @TAGS |
| 330 | * The function nea_server_create() takes the following tag values as its |
| 331 | * arguments: |
| 332 | * <dl> |
| 333 | * |
| 334 | * <dt>SIPTAG_CONTACT() or SIPTAG_CONTACT_STR() |
| 335 | * <dd>The target address of the event server. |
| 336 | * |
| 337 | * <dt>SIPTAG_ALLOW_EVENTS() |
| 338 | * <dd>The initial list of events supported by eventity. This list is |
| 339 | * extended whenever a new event is created with nea_event_tcreate(). |
| 340 | * |
| 341 | * <dt>SIPTAG_SERVER_STR() |
| 342 | * <dd>The @b Server header for the event server. |
| 343 | * |
| 344 | * <dt>NEATAG_MINSUB() |
| 345 | * <dd>Minimum duration of a subscription. |
| 346 | * |
| 347 | * <dt>NEATAG_THROTTLE() |
| 348 | * <dd>Default value for event throttle (by default, 5 seconds). |
| 349 | * Throttle determines the minimum interval betweeen notifications. Note |
| 350 | * that the notification indicating that the subscription has terminated |
| 351 | * will be sent regardless of throttle. |
| 352 | * |
| 353 | * The default throttle value is used if the subscriber does not include |
| 354 | * a throttle parameter in @ref sip_event "Event" header of SUBSCRIBE request. |
| 355 | * |
| 356 | * <dt>NEATAG_MINTHROTTLE() |
| 357 | * <dd>Minimum allowed throttle value (by default, 5 seconds). |
| 358 | * |
| 359 | * <dt>NEATAG_EVENTLIST() |
| 360 | * <dd>If true, the subscribers must support eventlists. If SIPTAG_REQUIRE() |
| 361 | * is given, it must contain the "eventlist" feature. |
| 362 | * |
| 363 | * <dt>NEATAG_DIALOG() |
| 364 | * <dd>Give an optional NTA destination leg to event server. |
| 365 | * |
| 366 | * <dt>SIPTAG_REQUIRE()/SIPTAG_REQUIRE_STR() |
| 367 | * <dd>The @b Require header for the event server. The subscribers must |
| 368 | * indicate support the specified features. |
| 369 | * |
| 370 | * </dl> |
| 371 | * |
| 372 | * @return |
| 373 | * The function nea_server_create() returns a pointer to an event server |
| 374 | * object, or @c NULL upon an error. |
| 375 | */ |
| 376 | nea_server_t *nea_server_create(nta_agent_t *agent, |
| 377 | su_root_t *root, |
| 378 | url_t const *url, |
| 379 | int max_subs, |
| 380 | nea_new_event_f *callback, |
| 381 | nea_smagic_t *context, |
| 382 | tag_type_t tag, tag_value_t value, ...) |
| 383 | { |
| 384 | nea_server_t *nes = NULL((void*)0); |
| 385 | sip_contact_t const *contact = NULL((void*)0); |
| 386 | sip_allow_events_t const *allow_events = NULL((void*)0); |
| 387 | sip_require_t const *rq = NULL((void*)0); |
| 388 | char const *contact_str = NULL((void*)0); |
| 389 | char const *server_str = NULL((void*)0); |
| 390 | char const *rq_str = NULL((void*)0); |
| 391 | unsigned |
| 392 | min_expires = 15 * 60, |
| 393 | expires = NEA_DEFAULT_EXPIRES3600, |
| 394 | max_expires = 24 * 60 * 60; |
| 395 | nta_leg_t *leg = NONE((void *)- 1); |
| 396 | unsigned throttle = 5, min_throttle = throttle; |
| 397 | int eventlist = 0; |
| 398 | |
| 399 | { |
| 400 | ta_list ta; |
| 401 | |
| 402 | ta_start(ta, tag, value)do { tag_type_t ta_start__tag = (tag); tag_value_t ta_start__value = (value); __builtin_va_start((ta).ap, (value)); while ((ta_start__tag ) == tag_next && (ta_start__value) != 0) { ta_start__tag = ((tagi_t *)ta_start__value)->t_tag; if (ta_start__tag == tag_null || ta_start__tag == ((void*)0)) break; if (ta_start__tag == tag_next) { ta_start__value = ((tagi_t *)ta_start__value) ->t_value; } else { ta_start__tag = tag_next; break; } } ( ta).tl->t_tag = ta_start__tag; (ta).tl->t_value = ta_start__value ; if (ta_start__tag != ((void*)0) && ta_start__tag != tag_null && ta_start__tag != tag_next) { va_list ta_start__ap ; __builtin_va_copy((ta_start__ap), ((ta).ap)); (ta).tl[1].t_tag = tag_next; (ta).tl[1].t_value = (tag_value_t)tl_vlist(ta_start__ap ); __builtin_va_end(ta_start__ap); } else { (ta).tl[1].t_value = 0; (ta).tl[1].t_value = (tag_value_t)0; } } while(0); |
| 403 | |
| 404 | tl_gets(ta_args(ta)(ta).tl, |
| 405 | SIPTAG_CONTACT_REF(contact)siptag_contact_ref, siptag_contact_vr(&(contact)), |
| 406 | SIPTAG_CONTACT_STR_REF(contact_str)siptag_contact_str_ref, tag_str_vr(&(contact_str)), |
| 407 | SIPTAG_ALLOW_EVENTS_REF(allow_events)siptag_allow_events_ref, siptag_allow_events_vr(&(allow_events )), |
| 408 | SIPTAG_SERVER_STR_REF(server_str)siptag_server_str_ref, tag_str_vr(&(server_str)), |
| 409 | SIPTAG_REQUIRE_REF(rq)siptag_require_ref, siptag_require_vr(&(rq)), |
| 410 | SIPTAG_REQUIRE_STR_REF(rq_str)siptag_require_str_ref, tag_str_vr(&(rq_str)), |
| 411 | NEATAG_MIN_EXPIRES_REF(min_expires)neatag_min_expires_ref, tag_uint_vr((&min_expires)), |
| 412 | NEATAG_EXPIRES_REF(expires)neatag_expires_ref, tag_uint_vr((&expires)), |
| 413 | NEATAG_MAX_EXPIRES_REF(max_expires)neatag_max_expires_ref, tag_uint_vr((&max_expires)), |
| 414 | NEATAG_DIALOG_REF(leg)neatag_dialog_ref, tag_ptr_vr((&leg), (leg)), |
| 415 | NEATAG_THROTTLE_REF(throttle)neatag_throttle_ref, tag_uint_vr((&throttle)), |
| 416 | NEATAG_MINTHROTTLE_REF(min_throttle)neatag_minthrottle_ref, tag_uint_vr((&min_throttle)), |
| 417 | NEATAG_EVENTLIST_REF(eventlist)neatag_eventlist_ref, tag_bool_vr((&eventlist)), |
| 418 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 419 | |
| 420 | ta_end(ta)((((ta).tl[1].t_value) ? (tl_vfree((tagi_t *)((ta).tl[1].t_value ))) : (void)0), (ta).tl[1].t_value = 0, __builtin_va_end((ta) .ap)); |
| 421 | } |
| 422 | |
| 423 | if (throttle < min_throttle) |
| 424 | throttle = min_throttle; |
| 425 | |
| 426 | if (!url) { |
| 427 | SU_DEBUG_5(("nea_server_create(): invalid url\n" VA_NONE))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 427, "nea_server_create(): invalid url\n" "%s", "")) : (void)0); |
| 428 | return NULL((void*)0); |
| 429 | } |
| 430 | |
| 431 | if (min_expires > expires || expires > max_expires) { |
| 432 | SU_DEBUG_5(("nea_server_create(): invalid expiration range\n" VA_NONE))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 432, "nea_server_create(): invalid expiration range\n" "%s", "")) : (void)0); |
| 433 | return NULL((void*)0); |
| 434 | } |
| 435 | |
| 436 | nes = su_home_new(sizeof(nea_server_t)); |
| 437 | |
| 438 | if (nes) { |
| 439 | su_home_t *home = nes->nes_home; |
| 440 | |
| 441 | nes->nes_root = root; |
| 442 | nes->nes_agent = agent; |
| 443 | |
| 444 | nes->nes_max_subs = max_subs; |
| 445 | |
| 446 | nes->nes_min_expires = min_expires; |
| 447 | nes->nes_expires = expires; |
| 448 | nes->nes_max_expires = max_expires; |
| 449 | |
| 450 | nes->nes_throttle = throttle; |
| 451 | nes->nes_min_throttle = min_throttle; |
| 452 | |
| 453 | if (allow_events) |
| 454 | nes->nes_allow_events = sip_allow_events_dup(home, allow_events); |
| 455 | else |
| 456 | nes->nes_allow_events = sip_allow_events_make(home, ""); |
| 457 | |
| 458 | nes->nes_allow_methods = sip_allow_make(home, "SUBSCRIBE"); |
| 459 | |
| 460 | nes->nes_server = |
| 461 | su_sprintf(home, "%s%snea/" NEA_VERSION_STR"3.0" " %s", |
| 462 | server_str ? server_str : "", |
| 463 | server_str ? " " : "", |
| 464 | nta_agent_version(agent)); |
| 465 | |
| 466 | if (contact) |
| 467 | nes->nes_eventity_uri = sip_contact_dup(home, contact); |
| 468 | else if (contact_str) |
| 469 | nes->nes_eventity_uri = sip_contact_make(home, contact_str); |
| 470 | else |
| 471 | nes->nes_eventity_uri = sip_contact_create(home, (url_string_t *)url, NULL((void*)0)); |
| 472 | |
| 473 | if (leg != NONE((void *)- 1)) { |
| 474 | nes->nes_leg = leg; |
| 475 | if (leg != NULL((void*)0)) |
| 476 | nta_leg_bind(leg, nea_server_callback, (nea_sub_t*)nes); |
| 477 | } else { |
| 478 | nes->nes_leg = nta_leg_tcreate(agent, |
| 479 | nea_server_callback, |
| 480 | (nea_sub_t*)nes, |
| 481 | NTATAG_NO_DIALOG(1)ntatag_no_dialog, tag_bool_v((1)), |
| 482 | NTATAG_METHOD("SUBSCRIBE")ntatag_method, tag_str_v(("SUBSCRIBE")), |
| 483 | URLTAG_URL(url)urltag_url, urltag_url_v(url), |
| 484 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 485 | } |
| 486 | |
| 487 | nes->nes_eventlist = eventlist; /* Every event is a list */ |
| 488 | if (eventlist && rq == NULL((void*)0) && rq_str == NULL((void*)0)) |
| 489 | rq_str = "eventlist"; |
| 490 | |
| 491 | if (rq) |
| 492 | nes->nes_require = sip_require_dup(nes->nes_home, rq); |
| 493 | else if (rq_str) |
| 494 | nes->nes_require = sip_require_make(nes->nes_home, rq_str); |
| 495 | |
| 496 | nes->nes_timer = su_timer_create(su_root_task(nes->nes_root), |
| 497 | nes->nes_min_throttle |
| 498 | ? 500L * nes->nes_min_throttle |
| 499 | : 500L); |
| 500 | |
| 501 | if (nes->nes_allow_events && |
| 502 | nes->nes_eventity_uri && |
| 503 | (nes->nes_leg || leg == NULL((void*)0)) && |
| 504 | nes->nes_timer) { |
| 505 | SU_DEBUG_5(("nea_server_create(%p): success\n", (void *)nes))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 505, "nea_server_create(%p): success\n" , (void *)nes)) : (void)0); |
| 506 | su_timer_set(nes->nes_timer, nes_event_timer, nes); |
| 507 | |
| 508 | nes->nes_callback = callback; |
| 509 | nes->nes_context = context; |
| 510 | } |
| 511 | else { |
| 512 | SU_DEBUG_5(("nea_server_create(%p): failed\n", (void *)nes))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 512, "nea_server_create(%p): failed\n" , (void *)nes)) : (void)0); |
| 513 | nea_server_destroy(nes), nes = NULL((void*)0); |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | return nes; |
| 518 | } |
| 519 | |
| 520 | /** Invoke the new event callback. |
| 521 | * |
| 522 | * The function nes_event_callback() calls the callback provided by the |
| 523 | * application using the notifier object. |
| 524 | * |
| 525 | * @param nes pointer to notifier object |
| 526 | * @param ev pointer to event view |
| 527 | * @param s pointer to subscription object |
| 528 | * @param sip pointer to subscribe request |
| 529 | * |
| 530 | * @return |
| 531 | * The function nes_event_callback() returns -1 if the notifier object |
| 532 | * has been destroyed by the callback function, 0 otherwise. |
| 533 | */ |
| 534 | static |
| 535 | int nes_new_event_callback(nea_server_t *nes, |
| 536 | nea_event_t **ev_p, |
| 537 | nea_event_view_t **view_p, |
| 538 | nta_incoming_t *irq, |
| 539 | sip_t const *sip) |
| 540 | { |
| 541 | if (nes->nes_callback) |
| 542 | return nes->nes_callback(nes->nes_context, nes, ev_p, view_p, irq, sip); |
| 543 | else |
| 544 | return -1; |
| 545 | } |
| 546 | |
| 547 | /** Shutdown event server. |
| 548 | */ |
| 549 | int nea_server_shutdown(nea_server_t *nes, |
| 550 | int retry_after) |
| 551 | { |
| 552 | nea_sub_t *s; |
| 553 | // int status = 200; |
| 554 | int in_callback; |
| 555 | |
| 556 | if (nes == NULL((void*)0)) |
| 557 | return 500; |
| 558 | |
| 559 | if (nes->nes_in_callback) { |
| 560 | SU_DEBUG_5(("nea_server_shutdown(%p) while in callback\n", (void *)nes))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 560, "nea_server_shutdown(%p) while in callback\n" , (void *)nes)) : (void)0); |
| 561 | return 100; |
| 562 | } |
| 563 | |
| 564 | SU_DEBUG_5(("nea_server_shutdown(%p)\n", (void *)nes))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 564, "nea_server_shutdown(%p)\n", (void *)nes)) : (void)0); |
| 565 | |
| 566 | in_callback = nes->nes_in_callback; nes->nes_in_callback = 1; |
| 567 | |
| 568 | for (s = nes->nes_subscribers; s; s = s->s_next) { |
| 569 | if (s->s_state == nea_terminated) |
| 570 | continue; |
| 571 | if (s->s_pending_flush) |
| 572 | continue; |
| 573 | if (s->s_oreq == NULL((void*)0)) |
| 574 | nea_sub_auth(s, nea_terminated, |
| 575 | TAG_IF(retry_after, NEATAG_REASON("probation"))!(retry_after) ? tag_skip : neatag_reason, tag_str_v(("probation" )), |
| 576 | TAG_IF(!retry_after, NEATAG_REASON("deactivated"))!(!retry_after) ? tag_skip : neatag_reason, tag_str_v(("deactivated" )), |
| 577 | TAG_IF(retry_after, NEATAG_RETRY_AFTER(retry_after))!(retry_after) ? tag_skip : neatag_retry_after, tag_uint_v((retry_after )), |
| 578 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 579 | //else |
| 580 | //status = 180; |
| 581 | } |
| 582 | |
| 583 | nes->nes_in_callback = in_callback; |
| 584 | |
| 585 | return 200; |
| 586 | } |
| 587 | |
| 588 | void nea_server_destroy(nea_server_t *nes) |
| 589 | { |
| 590 | if (nes == NULL((void*)0)) |
| 591 | return; |
| 592 | |
| 593 | if (nes->nes_in_callback) { |
| 594 | SU_DEBUG_5(("nea_server_destroy(%p) while in callback\n", (void *)nes))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 594, "nea_server_destroy(%p) while in callback\n" , (void *)nes)) : (void)0); |
| 595 | nes->nes_pending_destroy = 1; |
| 596 | return; |
| 597 | } |
| 598 | |
| 599 | SU_DEBUG_5(("nea_server_destroy(%p)\n", (void *)nes))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 599, "nea_server_destroy(%p)\n", (void *)nes)) : (void)0); |
| 600 | |
| 601 | nta_leg_destroy(nes->nes_leg), nes->nes_leg = NULL((void*)0); |
| 602 | |
| 603 | while (nes->nes_subscribers) |
| 604 | nea_sub_destroy(nes->nes_subscribers); |
| 605 | |
| 606 | su_timer_destroy(nes->nes_timer), nes->nes_timer = NULL((void*)0); |
| 607 | |
| 608 | su_home_unref(nes->nes_home); |
| 609 | } |
| 610 | |
| 611 | /* ----------------------------------------------------------------- */ |
| 612 | |
| 613 | /**Update server payload. |
| 614 | * |
| 615 | * A nea event server has typed content that is delivered to the |
| 616 | * subscribers. Different content types are each assigned a separate primary |
| 617 | * view. There can be also primary views with "fake" content, content |
| 618 | * delivered to politely blocked subscribers. |
| 619 | * |
| 620 | * In addition to primary views, there can be secondary views, views |
| 621 | * assigned to a single subscriber only. |
| 622 | * |
| 623 | * @TAGS |
| 624 | * The following tagged arguments are accepted: |
| 625 | * <dl> |
| 626 | * |
| 627 | * <dt>SIPTAG_PAYLOAD() or SIPTAG_PAYLOAD_STR() |
| 628 | * <dd>Updated event content. |
| 629 | * |
| 630 | * <dt>SIPTAG_CONTENT_TYPE() or SIPTAG_CONTENT_TYPE_STR(). |
| 631 | * <dd>MIME type of the content. |
| 632 | * |
| 633 | * <dt>NEATAG_FAKE(fak) |
| 634 | * <dd>If @a fake is true, 'fake' view is updated. |
| 635 | * |
| 636 | * <dt>NEATAG_VIEW(view) |
| 637 | * <dd>If included in tagged arguments, @a view is * updated. Used when |
| 638 | * updating secondary view. |
| 639 | * |
| 640 | * <dt>NEATAG_VERSION(version) |
| 641 | * <dd>The application-provided @a version for |
| 642 | * event content. After updated content has been sent to subscriber, @a |
| 643 | * version is copied to subscriber information structure. |
| 644 | * |
| 645 | * <dt>NEATAG_EVMAGIC(context) |
| 646 | * <dd>Application-provided @a context pointer. |
| 647 | * The @a context pointer is returned by nea_view_magic() function. |
| 648 | * |
| 649 | * <dt>NEATAG_RELIABLE(reliable) |
| 650 | * <dd>The @a reliable flag determines how overlapping updates are handled. |
| 651 | * If @a reliable is true, all updates are delivered to the subscribers. |
| 652 | * |
| 653 | * <dt>NEATAG_THROTTLE(throttl) |
| 654 | * <dd>Default value for event throttle for updated event view. Throttle |
| 655 | * determines the minimum interval in seconds betweeen notifications. Note |
| 656 | * that the notification indicating that the subscription has terminated |
| 657 | * will be sent regardless of throttle. |
| 658 | * |
| 659 | * The default throttle value is used if the subscriber does not include |
| 660 | * a throttle parameter in @ref sip_event "Event" header of SUBSCRIBE request. |
| 661 | * |
| 662 | * <dt>NEATAG_MINTHROTTLE() |
| 663 | * <dd>Minimum allowed throttle value for updated event view. |
| 664 | * |
| 665 | * </dl> |
| 666 | * |
| 667 | * @retval -1 upon an error. |
| 668 | * @retval 0 if event document was not updated. |
| 669 | * @retval 1 if event document was updated. |
| 670 | */ |
| 671 | int nea_server_update(nea_server_t *nes, |
| 672 | nea_event_t *ev, |
| 673 | tag_type_t tag, |
| 674 | tag_value_t value, |
| 675 | ...) |
| 676 | { |
| 677 | nea_event_view_t *evv = NULL((void*)0); |
| 678 | int fake = 0, updated; |
| 679 | |
| 680 | ta_list ta; |
| 681 | |
| 682 | if (ev == NULL((void*)0)) |
| 683 | ev = nes->nes_events; |
| 684 | |
| 685 | ta_start(ta, tag, value)do { tag_type_t ta_start__tag = (tag); tag_value_t ta_start__value = (value); __builtin_va_start((ta).ap, (value)); while ((ta_start__tag ) == tag_next && (ta_start__value) != 0) { ta_start__tag = ((tagi_t *)ta_start__value)->t_tag; if (ta_start__tag == tag_null || ta_start__tag == ((void*)0)) break; if (ta_start__tag == tag_next) { ta_start__value = ((tagi_t *)ta_start__value) ->t_value; } else { ta_start__tag = tag_next; break; } } ( ta).tl->t_tag = ta_start__tag; (ta).tl->t_value = ta_start__value ; if (ta_start__tag != ((void*)0) && ta_start__tag != tag_null && ta_start__tag != tag_next) { va_list ta_start__ap ; __builtin_va_copy((ta_start__ap), ((ta).ap)); (ta).tl[1].t_tag = tag_next; (ta).tl[1].t_value = (tag_value_t)tl_vlist(ta_start__ap ); __builtin_va_end(ta_start__ap); } else { (ta).tl[1].t_value = 0; (ta).tl[1].t_value = (tag_value_t)0; } } while(0); |
| 686 | |
| 687 | tl_gets(ta_args(ta)(ta).tl, |
| 688 | NEATAG_FAKE_REF(fake)neatag_fake_ref, tag_bool_vr((&fake)), |
| 689 | NEATAG_VIEW_REF(evv)neatag_view_ref, tag_ptr_vr((&evv), (evv)), |
| 690 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 691 | |
| 692 | updated = nea_view_update(nes, ev, &evv, 0, fake, ta_tags(ta)(ta).tl[0].t_tag, (ta).tl[0].t_value, (ta).tl[1].t_tag, (ta). tl[1].t_value); |
| 693 | |
| 694 | ta_end(ta)((((ta).tl[1].t_value) ? (tl_vfree((tagi_t *)((ta).tl[1].t_value ))) : (void)0), (ta).tl[1].t_value = 0, __builtin_va_end((ta) .ap)); |
| 695 | |
| 696 | return updated; |
| 697 | } |
| 698 | |
| 699 | static |
| 700 | int nea_view_update(nea_server_t *nes, |
| 701 | nea_event_t *ev, |
| 702 | nea_event_view_t **evvp, |
| 703 | int private, |
| 704 | int fake, |
| 705 | tag_type_t tag, |
| 706 | tag_value_t value, |
| 707 | ...) |
| 708 | { |
| 709 | ta_list ta; |
| 710 | |
| 711 | su_home_t *home = nes->nes_home; |
| 712 | |
| 713 | sip_content_type_t const *ct = NULL((void*)0); |
| 714 | char const *cts = NULL((void*)0), *pls = NULL((void*)0); |
| 715 | sip_payload_t const *pl = NULL((void*)0); |
| 716 | sip_payload_t *new_pl; |
| 717 | nea_event_view_t *evv, **eevv = &evv; |
| 718 | nea_event_view_t *primary = NULL((void*)0), **primary_p = &primary; |
| 719 | unsigned version = UINT_MAX(2147483647 *2U +1U); |
| 720 | nea_evmagic_t *evmagic = NULL((void*)0); |
| 721 | int reliable = ev->ev_reliable; |
| 722 | unsigned throttle = ev->ev_throttle; |
| 723 | unsigned min_throttle = ev->ev_min_throttle; |
| 724 | |
| 725 | nea_event_queue_t evq[1] = {{ NULL((void*)0) }}; |
| 726 | |
| 727 | ta_start(ta, tag, value)do { tag_type_t ta_start__tag = (tag); tag_value_t ta_start__value = (value); __builtin_va_start((ta).ap, (value)); while ((ta_start__tag ) == tag_next && (ta_start__value) != 0) { ta_start__tag = ((tagi_t *)ta_start__value)->t_tag; if (ta_start__tag == tag_null || ta_start__tag == ((void*)0)) break; if (ta_start__tag == tag_next) { ta_start__value = ((tagi_t *)ta_start__value) ->t_value; } else { ta_start__tag = tag_next; break; } } ( ta).tl->t_tag = ta_start__tag; (ta).tl->t_value = ta_start__value ; if (ta_start__tag != ((void*)0) && ta_start__tag != tag_null && ta_start__tag != tag_next) { va_list ta_start__ap ; __builtin_va_copy((ta_start__ap), ((ta).ap)); (ta).tl[1].t_tag = tag_next; (ta).tl[1].t_value = (tag_value_t)tl_vlist(ta_start__ap ); __builtin_va_end(ta_start__ap); } else { (ta).tl[1].t_value = 0; (ta).tl[1].t_value = (tag_value_t)0; } } while(0); |
| 728 | |
| 729 | tl_gets(ta_args(ta)(ta).tl, |
| 730 | SIPTAG_CONTENT_TYPE_REF(ct)siptag_content_type_ref, siptag_content_type_vr(&(ct)), |
| 731 | SIPTAG_CONTENT_TYPE_STR_REF(cts)siptag_content_type_str_ref, tag_str_vr(&(cts)), |
| 732 | SIPTAG_PAYLOAD_REF(pl)siptag_payload_ref, siptag_payload_vr(&(pl)), |
| 733 | SIPTAG_PAYLOAD_STR_REF(pls)siptag_payload_str_ref, tag_str_vr(&(pls)), |
| 734 | NEATAG_VERSION_REF(version)neatag_version_ref, tag_uint_vr((&version)), |
| 735 | NEATAG_EVMAGIC_REF(evmagic)neatag_evmagic_ref, tag_ptr_vr((&evmagic), (evmagic)), |
| 736 | NEATAG_RELIABLE_REF(reliable)neatag_reliable_ref, tag_bool_vr((&reliable)), |
| 737 | NEATAG_THROTTLE_REF(throttle)neatag_throttle_ref, tag_uint_vr((&throttle)), |
| 738 | NEATAG_MINTHROTTLE_REF(min_throttle)neatag_minthrottle_ref, tag_uint_vr((&min_throttle)), |
| 739 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 740 | |
| 741 | ta_end(ta)((((ta).tl[1].t_value) ? (tl_vfree((tagi_t *)((ta).tl[1].t_value ))) : (void)0), (ta).tl[1].t_value = 0, __builtin_va_end((ta) .ap)); |
| 742 | |
| 743 | if (min_throttle < throttle) |
| 744 | min_throttle = throttle; |
| 745 | |
| 746 | if (ct == NULL((void*)0) && cts == NULL((void*)0)) |
| 747 | return -1; |
| 748 | |
| 749 | if (ct) |
| 750 | cts = ct->c_type; |
| 751 | |
| 752 | evv = *evvp; |
| 753 | |
| 754 | if (!evv) { |
| 755 | int i; |
| 756 | |
| 757 | /* Check if the payload type already exists */ |
| 758 | for (i = 0; (evv = ev->ev_views[i]); i++) |
| 759 | if (su_casematch(cts, evv->evv_content_typeevv_head->evq_content_type->c_type)) |
| 760 | break; |
| 761 | |
| 762 | if (private && evv == NULL((void*)0)) /* No private view without primary view. */ |
| 763 | return -1; |
| 764 | |
| 765 | if (i == NEA_VIEW_MAX(8)) /* Too many primary views. */ |
| 766 | return -1; |
| 767 | |
| 768 | primary_p = eevv = ev->ev_views + i; |
| 769 | |
| 770 | /* Search for fakeness/eventlist/private view */ |
| 771 | if (evv && (private || evv->evv_private || evv->evv_fake != (unsigned)fake)) { |
| 772 | for (eevv = &evv->evv_next; (evv = *eevv); eevv = &evv->evv_next) { |
| 773 | if (private || evv->evv_private) |
| 774 | continue; |
| 775 | if (evv->evv_fake == (unsigned)fake) |
| 776 | break; |
| 777 | } |
| 778 | } |
| 779 | } |
| 780 | |
| 781 | /* New event view, allocate and link to chain */ |
| 782 | if (!evv) { |
| 783 | sip_content_type_t *new_ct; |
| 784 | |
| 785 | evv = su_zalloc(home, sizeof (*evv)); |
| 786 | if (!evv) |
| 787 | return -1; |
| 788 | |
| 789 | new_pl = pl ? sip_payload_dup(home, pl) |
| 790 | : sip_payload_make(home, pls); |
| 791 | |
| 792 | new_ct = ct ? sip_content_type_dup(home, ct) |
| 793 | : sip_content_type_make(home, cts); |
| 794 | |
| 795 | if ((!new_pl && pl) || !new_ct) { |
| 796 | su_free(home, evv); su_free(home, new_pl); |
| 797 | return -1; |
| 798 | } |
| 799 | |
| 800 | *evvp = *eevv = evv; |
| 801 | |
| 802 | evv->evv_primary = *primary_p; |
| 803 | evv->evv_private = private != 0; |
| 804 | evv->evv_fake = fake != 0; |
| 805 | evv->evv_reliable = reliable != 0; |
| 806 | evv->evv_magic = evmagic; |
| 807 | evv->evv_content_typeevv_head->evq_content_type = new_ct; |
| 808 | evv->evv_payloadevv_head->evq_payload = new_pl; |
| 809 | evv->evv_throttle = throttle; |
| 810 | evv->evv_min_throttle = min_throttle; |
| 811 | |
| 812 | assert(evv->evv_content_type)((void) sizeof ((evv->evv_head->evq_content_type) ? 1 : 0), __extension__ ({ if (evv->evv_head->evq_content_type ) ; else __assert_fail ("evv->evv_content_type", "nea_server.c" , 812, __extension__ __PRETTY_FUNCTION__); })); |
| 813 | } |
| 814 | else { |
| 815 | if (pl && |
| 816 | evv->evv_payloadevv_head->evq_payload && |
| 817 | evv->evv_payloadevv_head->evq_payload->pl_len == pl->pl_len && |
| 818 | memcmp(evv->evv_payloadevv_head->evq_payload->pl_data, pl->pl_data, pl->pl_len) == 0) |
| 819 | return 0; |
| 820 | if (!pl && pls && evv->evv_payloadevv_head->evq_payload && |
| 821 | evv->evv_payloadevv_head->evq_payload->pl_len == strlen(pls) && |
| 822 | memcmp(evv->evv_payloadevv_head->evq_payload->pl_data, pls, evv->evv_payloadevv_head->evq_payload->pl_len) == 0) |
| 823 | return 0; |
| 824 | if (!pl && !pls && !evv->evv_payloadevv_head->evq_payload) |
| 825 | return 0; |
| 826 | |
| 827 | *evq = *evv->evv_head; |
| 828 | |
| 829 | new_pl = pl ? sip_payload_dup(home, pl) : sip_payload_make(home, pls); |
| 830 | |
| 831 | if (!new_pl && (pl || pls)) |
| 832 | return -1; |
| 833 | |
| 834 | evv->evv_payloadevv_head->evq_payload = new_pl; |
| 835 | } |
| 836 | |
| 837 | if (version != UINT_MAX(2147483647 *2U +1U)) |
| 838 | evv->evv_versionevv_head->evq_version = version; |
| 839 | |
| 840 | if (!fake) |
| 841 | evv->evv_updatedevv_head->evq_updated = ++ev->ev_updated; |
| 842 | |
| 843 | if (evq->evq_content_type) |
| 844 | nea_view_queue(nes, evv, evq); |
| 845 | |
| 846 | SU_DEBUG_7(("nea_server_update(%p): %s (%s)\n", (void *)nes,((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 7 ? (_su_llog((nea_log), 7, "nea_server.c", (const char *)__func__, 847, "nea_server_update(%p): %s (%s)\n" , (void *)nes, ev->ev_event->o_type, (evv->evv_head-> evq_content_type ? evv->evv_head->evq_content_type-> c_type : "N/A"))) : (void)0) |
| 847 | ev->ev_event->o_type, (evv->evv_content_type ? evv->evv_content_type->c_type : "N/A")))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 7 ? (_su_llog((nea_log), 7, "nea_server.c", (const char *)__func__, 847, "nea_server_update(%p): %s (%s)\n" , (void *)nes, ev->ev_event->o_type, (evv->evv_head-> evq_content_type ? evv->evv_head->evq_content_type-> c_type : "N/A"))) : (void)0); |
| 848 | |
| 849 | return 1; |
| 850 | } |
| 851 | |
| 852 | nea_event_view_t *nea_view_create(nea_server_t *nes, |
| 853 | nea_event_t *ev, |
| 854 | nea_evmagic_t *magic, |
| 855 | tag_type_t tag, |
| 856 | tag_value_t value, |
| 857 | ...) |
| 858 | { |
| 859 | nea_event_view_t *evv = NULL((void*)0); |
| 860 | ta_list ta; |
| 861 | |
| 862 | if (ev == NULL((void*)0)) |
| 863 | return NULL((void*)0); |
| 864 | |
| 865 | ta_start(ta, tag, value)do { tag_type_t ta_start__tag = (tag); tag_value_t ta_start__value = (value); __builtin_va_start((ta).ap, (value)); while ((ta_start__tag ) == tag_next && (ta_start__value) != 0) { ta_start__tag = ((tagi_t *)ta_start__value)->t_tag; if (ta_start__tag == tag_null || ta_start__tag == ((void*)0)) break; if (ta_start__tag == tag_next) { ta_start__value = ((tagi_t *)ta_start__value) ->t_value; } else { ta_start__tag = tag_next; break; } } ( ta).tl->t_tag = ta_start__tag; (ta).tl->t_value = ta_start__value ; if (ta_start__tag != ((void*)0) && ta_start__tag != tag_null && ta_start__tag != tag_next) { va_list ta_start__ap ; __builtin_va_copy((ta_start__ap), ((ta).ap)); (ta).tl[1].t_tag = tag_next; (ta).tl[1].t_value = (tag_value_t)tl_vlist(ta_start__ap ); __builtin_va_end(ta_start__ap); } else { (ta).tl[1].t_value = 0; (ta).tl[1].t_value = (tag_value_t)0; } } while(0); |
| 866 | |
| 867 | nea_view_update(nes, ev, &evv, 1, 0, ta_tags(ta)(ta).tl[0].t_tag, (ta).tl[0].t_value, (ta).tl[1].t_tag, (ta). tl[1].t_value); |
| 868 | |
| 869 | ta_end(ta)((((ta).tl[1].t_value) ? (tl_vfree((tagi_t *)((ta).tl[1].t_value ))) : (void)0), (ta).tl[1].t_value = 0, __builtin_va_end((ta) .ap)); |
| 870 | |
| 871 | return evv; |
| 872 | } |
| 873 | |
| 874 | void nea_view_destroy(nea_server_t *nes, nea_event_view_t *evv) |
| 875 | { |
| 876 | nea_event_view_t **evvp; |
| 877 | nea_sub_t *s; |
| 878 | |
| 879 | if (nes == NULL((void*)0) || evv == NULL((void*)0) || !evv->evv_private) |
| 880 | return; |
| 881 | |
| 882 | assert(evv->evv_primary && evv != evv->evv_primary)((void) sizeof ((evv->evv_primary && evv != evv-> evv_primary) ? 1 : 0), __extension__ ({ if (evv->evv_primary && evv != evv->evv_primary) ; else __assert_fail ( "evv->evv_primary && evv != evv->evv_primary", "nea_server.c" , 882, __extension__ __PRETTY_FUNCTION__); })); |
| 883 | |
| 884 | for (evvp = &evv->evv_primary->evv_next; *evvp; evvp = &(*evvp)->evv_next) |
| 885 | if (*evvp == evv) { |
| 886 | *evvp = evv->evv_next; |
| 887 | break; |
| 888 | } |
| 889 | |
| 890 | for (s = nes->nes_subscribers; s; s = s->s_next) |
| 891 | if (s->s_view == evv) |
| 892 | nea_sub_assign_view(s, evv->evv_primary); |
| 893 | |
| 894 | su_free(nes->nes_home, evv->evv_content_typeevv_head->evq_content_type); |
| 895 | su_free(nes->nes_home, evv->evv_payloadevv_head->evq_payload); |
| 896 | su_free(nes->nes_home, evv); |
| 897 | } |
| 898 | |
| 899 | nea_evmagic_t *nea_view_magic(nea_event_view_t const *evv) |
| 900 | { |
| 901 | return evv ? evv->evv_magic : NULL((void*)0); |
| 902 | } |
| 903 | |
| 904 | void nea_view_set_magic(nea_event_view_t *evv, nea_evmagic_t *magic) |
| 905 | { |
| 906 | if (evv) |
| 907 | evv->evv_magic = magic; |
| 908 | } |
| 909 | |
| 910 | unsigned nea_view_version(nea_event_view_t const *evv) |
| 911 | { |
| 912 | return evv ? evv->evv_versionevv_head->evq_version : 0; |
| 913 | } |
| 914 | |
| 915 | /** Get primary, non-fake event view for given content type */ |
| 916 | nea_event_view_t *nea_event_view(nea_event_t *ev, char const *content_type) |
| 917 | { |
| 918 | int i; |
| 919 | nea_event_view_t *evv; |
| 920 | |
| 921 | /* Check if the payload type already exists */ |
| 922 | for (i = 0; ev->ev_views[i]; i++) |
| 923 | if (su_casematch(content_type, ev->ev_views[i]->evv_content_typeevv_head->evq_content_type->c_type)) |
| 924 | break; |
| 925 | |
| 926 | for (evv = ev->ev_views[i]; evv; evv = evv->evv_next) |
| 927 | if (!evv->evv_fake) |
| 928 | return evv; |
| 929 | |
| 930 | return ev->ev_views[i]; |
| 931 | } |
| 932 | |
| 933 | /** Get the content type for event view */ |
| 934 | sip_content_type_t const *nea_view_content_type(nea_event_view_t const *evv) |
| 935 | { |
| 936 | return evv ? evv->evv_content_typeevv_head->evq_content_type : NULL((void*)0); |
| 937 | } |
| 938 | |
| 939 | |
| 940 | /** Queue an old notification if needed. */ |
| 941 | static |
| 942 | int nea_view_queue(nea_server_t *nes, |
| 943 | nea_event_view_t *evv, |
| 944 | nea_event_queue_t *evq) |
| 945 | { |
| 946 | nea_sub_t *s = NULL((void*)0); |
| 947 | |
| 948 | assert(nes && evv && evq)((void) sizeof ((nes && evv && evq) ? 1 : 0), __extension__ ({ if (nes && evv && evq) ; else __assert_fail ("nes && evv && evq", "nea_server.c" , 948, __extension__ __PRETTY_FUNCTION__); })); |
| 949 | |
| 950 | if (evv->evv_reliable) |
| 951 | for (s = nes->nes_subscribers; s; s = s->s_next) { |
| 952 | if (s->s_view != evv) |
| 953 | continue; |
| 954 | if (s->s_updated > evq->evq_updated) |
| 955 | continue; |
| 956 | if (s->s_updated == evq->evq_updated && s->s_oreq == NULL((void*)0)) |
| 957 | continue; |
| 958 | break; /* This */ |
| 959 | } |
| 960 | |
| 961 | if (s) { |
| 962 | nea_event_queue_t *evq0 = su_alloc(nes->nes_home, sizeof *evq); |
| 963 | |
| 964 | if (evq0 == NULL((void*)0)) |
| 965 | return -1; |
| 966 | |
| 967 | *evq0 = *evq, evq = evq0; |
| 968 | |
| 969 | /* evq should be copy of old head but with changed payload */ |
| 970 | assert(evq->evq_next == evv->evv_head->evq_next)((void) sizeof ((evq->evq_next == evv->evv_head->evq_next ) ? 1 : 0), __extension__ ({ if (evq->evq_next == evv-> evv_head->evq_next) ; else __assert_fail ("evq->evq_next == evv->evv_head->evq_next" , "nea_server.c", 970, __extension__ __PRETTY_FUNCTION__); }) ); |
| 971 | |
| 972 | evv->evv_head->evq_next = evq; /* insert to the queue */ |
| 973 | |
| 974 | return 0; |
| 975 | } |
| 976 | |
| 977 | su_free(nes->nes_home, (void *)evq->evq_payload); |
| 978 | |
| 979 | return 0; |
| 980 | } |
| 981 | |
| 982 | /** Remove old unneeded notifications. */ |
| 983 | static |
| 984 | int nea_view_dequeue(nea_server_t *nes, |
| 985 | nea_event_t *ev) |
| 986 | { |
| 987 | int i; |
| 988 | nea_event_view_t *evv; |
| 989 | nea_event_queue_t **prev, *evq;; |
| 990 | |
| 991 | assert(nes && ev)((void) sizeof ((nes && ev) ? 1 : 0), __extension__ ( { if (nes && ev) ; else __assert_fail ("nes && ev" , "nea_server.c", 991, __extension__ __PRETTY_FUNCTION__); }) ); |
| 992 | |
| 993 | for (i = 0; ev->ev_views[i]; i++) { |
| 994 | for (evv = ev->ev_views[i]; evv; evv = evv->evv_next) { |
| 995 | if (!evv->evv_reliable) |
| 996 | continue; |
| 997 | |
| 998 | for (prev = &evv->evv_head->evq_next; *prev; prev = &(*prev)->evq_next) |
| 999 | if (ev->ev_throttling >= (*prev)->evq_updated) |
| 1000 | break; |
| 1001 | |
| 1002 | /* Free from evq onwards */ |
| 1003 | for (evq = *prev; evq; evq = *prev) { |
| 1004 | *prev = evq->evq_next; |
| 1005 | su_free(nes->nes_home, evq->evq_payload); |
| 1006 | su_free(nes->nes_home, evq); |
| 1007 | } |
| 1008 | } |
| 1009 | } |
| 1010 | |
| 1011 | return 0; |
| 1012 | } |
| 1013 | |
| 1014 | /* ----------------------------------------------------------------- */ |
| 1015 | |
| 1016 | /** Notify watchers. |
| 1017 | * |
| 1018 | * @return |
| 1019 | * The function nea_server_notify() returns number of subscribers that the |
| 1020 | * notification could be sent, or -1 upon an error. |
| 1021 | */ |
| 1022 | int nea_server_notify(nea_server_t *nes, nea_event_t *ev) |
| 1023 | { |
| 1024 | sip_time_t now = sip_now(); |
| 1025 | nea_sub_t *s; |
| 1026 | int notified = 0, throttled = nes->nes_throttled; |
| 1027 | |
| 1028 | SU_DEBUG_7(("nea_server_notify(%p): %s\n", (void *)nes,((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 7 ? (_su_llog((nea_log), 7, "nea_server.c", (const char *)__func__, 1029, "nea_server_notify(%p): %s\n", (void *)nes, ev ? ev->ev_event->o_type: "")) : (void)0 ) |
| 1029 | ev ? ev->ev_event->o_type: ""))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 7 ? (_su_llog((nea_log), 7, "nea_server.c", (const char *)__func__, 1029, "nea_server_notify(%p): %s\n", (void *)nes, ev ? ev->ev_event->o_type: "")) : (void)0 ); |
| 1030 | |
| 1031 | ++nes->nes_in_list; |
| 1032 | |
| 1033 | nes->nes_throttled = 0; |
| 1034 | |
| 1035 | if (ev == NULL((void*)0)) |
| 1036 | for (ev = nes->nes_events; ev; ev = ev->ev_next) |
| 1037 | ev->ev_throttling = UINT_MAX(2147483647 *2U +1U); |
| 1038 | else |
| 1039 | ev->ev_throttling = UINT_MAX(2147483647 *2U +1U); |
| 1040 | |
| 1041 | for (s = nes->nes_subscribers; s; s = s->s_next) { |
| 1042 | if ((ev == NULL((void*)0) || ev == s->s_event) && s->s_state != nea_terminated) { |
| 1043 | notified += nea_sub_notify(nes, s, now, TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1044 | } |
| 1045 | } |
| 1046 | |
| 1047 | if (throttled) { |
| 1048 | /* Dequeue throttled updates */ |
| 1049 | if (ev == NULL((void*)0)) |
| 1050 | for (ev = nes->nes_events; ev; ev = ev->ev_next) { |
| 1051 | nea_view_dequeue(nes, ev); |
| 1052 | SU_DEBUG_3(("nea_server(): notified %u, throttling at %u\n",((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 3 ? (_su_llog((nea_log), 3, "nea_server.c", (const char *)__func__, 1053, "nea_server(): notified %u, throttling at %u\n" , notified, ev->ev_throttling)) : (void)0) |
| 1053 | notified, ev->ev_throttling))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 3 ? (_su_llog((nea_log), 3, "nea_server.c", (const char *)__func__, 1053, "nea_server(): notified %u, throttling at %u\n" , notified, ev->ev_throttling)) : (void)0); |
| 1054 | } |
| 1055 | else { |
| 1056 | SU_DEBUG_3(("nea_server(): notified %u, throttling at %u\n",((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 3 ? (_su_llog((nea_log), 3, "nea_server.c", (const char *)__func__, 1057, "nea_server(): notified %u, throttling at %u\n" , notified, ev->ev_throttling)) : (void)0) |
| 1057 | notified, ev->ev_throttling))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 3 ? (_su_llog((nea_log), 3, "nea_server.c", (const char *)__func__, 1057, "nea_server(): notified %u, throttling at %u\n" , notified, ev->ev_throttling)) : (void)0); |
| 1058 | nea_view_dequeue(nes, ev); |
| 1059 | } |
| 1060 | } |
| 1061 | |
| 1062 | if (--nes->nes_in_list == 0 && nes->nes_pending_flush) |
| 1063 | nea_server_pending_flush(nes); |
| 1064 | |
| 1065 | return notified; |
| 1066 | } |
| 1067 | |
| 1068 | |
| 1069 | /* ----------------------------------------------------------------- */ |
| 1070 | void nea_server_flush(nea_server_t *nes, nea_event_t *event) |
| 1071 | { |
| 1072 | nea_sub_t *s, **ss; |
| 1073 | sip_time_t now; |
| 1074 | |
| 1075 | if (nes == NULL((void*)0)) |
| 1076 | return; |
| 1077 | |
| 1078 | now = sip_now(); |
| 1079 | |
| 1080 | for (ss = &nes->nes_subscribers; (s = *ss);) { |
| 1081 | if ((event == NULL((void*)0) || s->s_event == event) && |
| 1082 | (s->s_state == nea_terminated || s->s_expires < now)) { |
| 1083 | /** On first flush, mark as garbage, remove on second flush */ |
| 1084 | if (!s->s_garbage) |
| 1085 | s->s_garbage = 1; |
| 1086 | else if (nes->nes_in_callback || nes->nes_in_list) { |
| 1087 | nes->nes_pending_flush = 1; |
| 1088 | (*ss)->s_pending_flush = 1; |
| 1089 | } |
| 1090 | else { |
| 1091 | nea_sub_destroy(*ss); |
| 1092 | continue; |
| 1093 | } |
| 1094 | } |
| 1095 | ss = &((*ss)->s_next); |
| 1096 | } |
| 1097 | } |
| 1098 | |
| 1099 | |
| 1100 | /* ----------------------------------------------------------------- */ |
| 1101 | static |
| 1102 | void nea_server_pending_flush(nea_server_t *nes) |
| 1103 | { |
| 1104 | nea_sub_t **ss; |
| 1105 | |
| 1106 | for (ss = &nes->nes_subscribers; *ss;) { |
| 1107 | if ((*ss)->s_pending_flush && !(*ss)->s_processing) { |
| 1108 | nea_sub_destroy(*ss); |
| 1109 | } else { |
| 1110 | ss = &((*ss)->s_next); |
| 1111 | } |
| 1112 | } |
| 1113 | |
| 1114 | nes->nes_pending_flush = 0; |
| 1115 | } |
| 1116 | |
| 1117 | /* ----------------------------------------------------------------- */ |
| 1118 | nea_sub_t *nea_sub_create(nea_server_t *nes) |
| 1119 | { |
| 1120 | nea_sub_t *s; |
| 1121 | |
| 1122 | assert(nes)((void) sizeof ((nes) ? 1 : 0), __extension__ ({ if (nes) ; else __assert_fail ("nes", "nea_server.c", 1122, __extension__ __PRETTY_FUNCTION__ ); })); |
| 1123 | |
| 1124 | s = su_zalloc(nes->nes_home, sizeof (*s)); |
| 1125 | |
| 1126 | if (s) { |
| 1127 | s->s_nes = nes; |
| 1128 | if ((s->s_next = nes->nes_subscribers)) |
| 1129 | s->s_next->s_prev = &s->s_next; |
| 1130 | s->s_prev = &nes->nes_subscribers; |
| 1131 | nes->nes_subscribers = s; |
| 1132 | |
| 1133 | /* Copy default values */ |
| 1134 | s->s_throttle = nes->nes_throttle; |
| 1135 | } |
| 1136 | |
| 1137 | return s; |
| 1138 | } |
| 1139 | |
| 1140 | /* ----------------------------------------------------------------- */ |
| 1141 | nta_incoming_t *nea_subnode_get_incoming(nea_subnode_t *sn) |
| 1142 | { |
| 1143 | assert(sn)((void) sizeof ((sn) ? 1 : 0), __extension__ ({ if (sn) ; else __assert_fail ("sn", "nea_server.c", 1143, __extension__ __PRETTY_FUNCTION__ ); })); |
| 1144 | |
| 1145 | if (sn->sn_subscriber) { |
| 1146 | return sn->sn_subscriber->s_irq; |
| 1147 | } |
| 1148 | return NULL((void*)0); |
| 1149 | } |
| 1150 | |
| 1151 | /* ----------------------------------------------------------------- */ |
| 1152 | void nea_sub_remove(nea_sub_t *s) |
| 1153 | { |
| 1154 | if (s) { |
| 1155 | assert(s->s_prev)((void) sizeof ((s->s_prev) ? 1 : 0), __extension__ ({ if ( s->s_prev) ; else __assert_fail ("s->s_prev", "nea_server.c" , 1155, __extension__ __PRETTY_FUNCTION__); })); |
| 1156 | |
| 1157 | if ((*s->s_prev = s->s_next)) |
| 1158 | s->s_next->s_prev = s->s_prev; |
| 1159 | |
| 1160 | s->s_prev = NULL((void*)0); |
| 1161 | s->s_next = NULL((void*)0); |
| 1162 | } |
| 1163 | } |
| 1164 | |
| 1165 | /* ----------------------------------------------------------------- */ |
| 1166 | /**Check if subscriber has been removed from list */ |
| 1167 | static int nea_sub_is_removed(nea_sub_t const *s) |
| 1168 | { |
| 1169 | return s->s_prev == NULL((void*)0); |
| 1170 | } |
| 1171 | |
| 1172 | /* ----------------------------------------------------------------- */ |
| 1173 | void nea_sub_destroy(nea_sub_t *s) |
| 1174 | { |
| 1175 | if (s) { |
| 1176 | nea_sub_t *del = s; |
| 1177 | su_home_t *home = del->s_nes->nes_home; |
| 1178 | |
| 1179 | if (!nea_sub_is_removed(del)) |
| 1180 | nea_sub_remove(del); |
| 1181 | |
| 1182 | del->s_event = NULL((void*)0); |
| 1183 | |
| 1184 | su_free(home, del->s_local), del->s_local = NULL((void*)0); |
| 1185 | su_free(home, del->s_remote), del->s_remote = NULL((void*)0); |
| 1186 | |
| 1187 | if (del->s_oreq) |
| 1188 | nta_outgoing_destroy(del->s_oreq), del->s_oreq = NULL((void*)0); |
| 1189 | if (del->s_leg) |
| 1190 | nta_leg_destroy(del->s_leg), del->s_leg = NULL((void*)0); |
| 1191 | if (del->s_from) |
| 1192 | su_free(home, del->s_from), del->s_from = NULL((void*)0); |
| 1193 | |
| 1194 | su_free(home, del); |
| 1195 | } |
| 1196 | } |
| 1197 | |
| 1198 | /** Create a new event. |
| 1199 | * |
| 1200 | * The function nea_event_create() creates a new event for the event server. |
| 1201 | */ |
| 1202 | nea_event_t *nea_event_create(nea_server_t *nes, |
| 1203 | nea_watcher_f *callback, |
| 1204 | nea_emagic_t *context, |
| 1205 | char const *name, |
| 1206 | char const *subname, |
| 1207 | char const *default_content_type, |
| 1208 | char const *accept) |
| 1209 | { |
| 1210 | return nea_event_tcreate(nes, callback, context, |
| 1211 | name, subname, |
| 1212 | SIPTAG_CONTENT_TYPE_STR(default_content_type)siptag_content_type_str, tag_str_v(default_content_type), |
| 1213 | SIPTAG_ACCEPT_STR(accept)siptag_accept_str, tag_str_v(accept), |
| 1214 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1215 | } |
| 1216 | |
| 1217 | /** Create a new event (or subevent) with tags */ |
| 1218 | nea_event_t *nea_event_tcreate(nea_server_t *nes, |
| 1219 | nea_watcher_f *callback, |
| 1220 | nea_emagic_t *context, |
| 1221 | char const *name, |
| 1222 | char const *subname, |
| 1223 | tag_type_t tag, tag_value_t value, ...) |
| 1224 | { |
| 1225 | nea_event_t *ev, **pev; |
| 1226 | size_t len = strlen(name); |
| 1227 | ta_list ta; |
| 1228 | |
| 1229 | if (nes == NULL((void*)0) || callback == NULL((void*)0) || name == NULL((void*)0)) |
| 1230 | return NULL((void*)0); |
| 1231 | |
| 1232 | /* Find a matching event */ |
| 1233 | if (subname == NULL((void*)0)) { |
| 1234 | for (pev = &nes->nes_events; (ev = *pev); pev = &(*pev)->ev_next) { |
| 1235 | if (strcmp(ev->ev_event->o_type, name) != 0) |
| 1236 | continue; |
| 1237 | SU_DEBUG_5(("nea_event_create(): already event %s\n", name))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 1237, "nea_event_create(): already event %s\n" , name)) : (void)0); |
| 1238 | return NULL((void*)0); |
| 1239 | } |
| 1240 | } |
| 1241 | else { |
| 1242 | for (pev = &nes->nes_events; (ev = *pev); pev = &(*pev)->ev_next) { |
| 1243 | if (strncmp(ev->ev_event->o_type, name, len) != 0 || |
| 1244 | ev->ev_event->o_type[len] != '.' || |
| 1245 | strcmp(subname, ev->ev_event->o_type + len + 1) != 0) |
| 1246 | continue; |
| 1247 | SU_DEBUG_5(("nea_event_create(): already event %s.%s\n", name, subname))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 1247, "nea_event_create(): already event %s.%s\n" , name, subname)) : (void)0); |
| 1248 | return NULL((void*)0); |
| 1249 | } |
| 1250 | } |
| 1251 | |
| 1252 | ta_start(ta, tag, value)do { tag_type_t ta_start__tag = (tag); tag_value_t ta_start__value = (value); __builtin_va_start((ta).ap, (value)); while ((ta_start__tag ) == tag_next && (ta_start__value) != 0) { ta_start__tag = ((tagi_t *)ta_start__value)->t_tag; if (ta_start__tag == tag_null || ta_start__tag == ((void*)0)) break; if (ta_start__tag == tag_next) { ta_start__value = ((tagi_t *)ta_start__value) ->t_value; } else { ta_start__tag = tag_next; break; } } ( ta).tl->t_tag = ta_start__tag; (ta).tl->t_value = ta_start__value ; if (ta_start__tag != ((void*)0) && ta_start__tag != tag_null && ta_start__tag != tag_next) { va_list ta_start__ap ; __builtin_va_copy((ta_start__ap), ((ta).ap)); (ta).tl[1].t_tag = tag_next; (ta).tl[1].t_value = (tag_value_t)tl_vlist(ta_start__ap ); __builtin_va_end(ta_start__ap); } else { (ta).tl[1].t_value = 0; (ta).tl[1].t_value = (tag_value_t)0; } } while(0); |
| 1253 | |
| 1254 | ev = su_zalloc(nes->nes_home, sizeof (*ev)); |
| 1255 | |
| 1256 | if (ev) { |
| 1257 | int reliable = 0; |
| 1258 | sip_content_type_t const *ct = NULL((void*)0); |
| 1259 | sip_accept_t const *ac = NULL((void*)0); |
| 1260 | sip_supported_t const *k = NULL((void*)0); |
| 1261 | sip_require_t const *rq = NULL((void*)0); |
| 1262 | char const *ct_str = NULL((void*)0), *ac_str = NULL((void*)0), *k_str = NULL((void*)0), *rq_str = NULL((void*)0); |
| 1263 | |
| 1264 | unsigned throttle = nes->nes_throttle, min_throttle = nes->nes_min_throttle; |
| 1265 | int eventlist = nes->nes_eventlist; |
| 1266 | |
| 1267 | tl_gets(ta_args(ta)(ta).tl, |
| 1268 | NEATAG_RELIABLE_REF(reliable)neatag_reliable_ref, tag_bool_vr((&reliable)), |
| 1269 | NEATAG_THROTTLE_REF(throttle)neatag_throttle_ref, tag_uint_vr((&throttle)), |
| 1270 | NEATAG_MINTHROTTLE_REF(min_throttle)neatag_minthrottle_ref, tag_uint_vr((&min_throttle)), |
| 1271 | NEATAG_EVENTLIST_REF(eventlist)neatag_eventlist_ref, tag_bool_vr((&eventlist)), |
| 1272 | SIPTAG_CONTENT_TYPE_REF(ct)siptag_content_type_ref, siptag_content_type_vr(&(ct)), |
| 1273 | SIPTAG_CONTENT_TYPE_STR_REF(ct_str)siptag_content_type_str_ref, tag_str_vr(&(ct_str)), |
| 1274 | SIPTAG_ACCEPT_REF(ac)siptag_accept_ref, siptag_accept_vr(&(ac)), |
| 1275 | SIPTAG_ACCEPT_STR_REF(ac_str)siptag_accept_str_ref, tag_str_vr(&(ac_str)), |
| 1276 | SIPTAG_SUPPORTED_REF(k)siptag_supported_ref, siptag_supported_vr(&(k)), |
| 1277 | SIPTAG_SUPPORTED_STR_REF(k_str)siptag_supported_str_ref, tag_str_vr(&(k_str)), |
| 1278 | SIPTAG_REQUIRE_REF(rq)siptag_require_ref, siptag_require_vr(&(rq)), |
| 1279 | SIPTAG_REQUIRE_STR_REF(rq_str)siptag_require_str_ref, tag_str_vr(&(rq_str)), |
| 1280 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1281 | |
| 1282 | ev->ev_callback = callback; |
| 1283 | ev->ev_magic = context; |
| 1284 | ev->ev_event = sip_event_format(nes->nes_home, "%s%s%s", |
| 1285 | name, |
| 1286 | subname ? "." : "", |
| 1287 | subname ? subname : ""); |
| 1288 | |
| 1289 | ev->ev_reliable = reliable != 0; |
| 1290 | ev->ev_throttle = throttle; |
| 1291 | ev->ev_min_throttle = min_throttle; |
| 1292 | ev->ev_eventlist = eventlist; |
| 1293 | |
| 1294 | if (eventlist && rq == NULL((void*)0) && rq_str == NULL((void*)0)) |
| 1295 | rq_str = "eventlist"; |
| 1296 | |
| 1297 | if (rq) |
| 1298 | ev->ev_require = sip_require_dup(nes->nes_home, rq); |
| 1299 | else if (rq_str) |
| 1300 | ev->ev_require = sip_require_make(nes->nes_home, rq_str); |
| 1301 | |
| 1302 | if (ev->ev_event) { |
| 1303 | #define sip_allow_events_find(k, i)msg_params_find(k->k_items, i) sip_params_findmsg_params_find(k->k_items, i) |
| 1304 | if (!sip_allow_events_find(nes->nes_allow_events,msg_params_find(nes->nes_allow_events->k_items, ev-> ev_event->o_type) |
| 1305 | ev->ev_event->o_type)msg_params_find(nes->nes_allow_events->k_items, ev-> ev_event->o_type)) |
| 1306 | sip_allow_events_add(nes->nes_home, nes->nes_allow_events, |
| 1307 | ev->ev_event->o_type); |
| 1308 | } |
| 1309 | |
| 1310 | if (ct) |
| 1311 | ev->ev_default = sip_accept_make(nes->nes_home, ct->c_type); |
| 1312 | else |
| 1313 | ev->ev_default = sip_accept_make(nes->nes_home, ct_str); |
| 1314 | |
| 1315 | if (ac == NULL((void*)0) && ac_str == NULL((void*)0)) |
| 1316 | ac_str = ct ? ct->c_type : ct_str; |
| 1317 | |
| 1318 | if (ac) |
| 1319 | ev->ev_accept = sip_accept_dup(nes->nes_home, ac); |
| 1320 | else |
| 1321 | ev->ev_accept = sip_accept_make(nes->nes_home, ac_str ? ac_str : ""); |
| 1322 | |
| 1323 | if (k) |
| 1324 | ev->ev_supported = sip_supported_dup(nes->nes_home, k); |
| 1325 | else if (k_str) |
| 1326 | ev->ev_supported = sip_supported_make(nes->nes_home, k_str); |
| 1327 | |
| 1328 | ev->ev_prev = pev; |
| 1329 | *pev = ev; |
| 1330 | } |
| 1331 | |
| 1332 | ta_end(ta)((((ta).tl[1].t_value) ? (tl_vfree((tagi_t *)((ta).tl[1].t_value ))) : (void)0), (ta).tl[1].t_value = 0, __builtin_va_end((ta) .ap)); |
| 1333 | |
| 1334 | return ev; |
| 1335 | } |
| 1336 | |
| 1337 | |
| 1338 | /* ----------------------------------------------------------------- */ |
| 1339 | /** Return magic context bound to nea_event. |
| 1340 | * |
| 1341 | * The function returns the magic context bound to the event. |
| 1342 | * |
| 1343 | * @param ev pointer to event object |
| 1344 | * |
| 1345 | * @return |
| 1346 | * The function nea_emagic_get() returns the magic context |
| 1347 | * bound to the event. |
| 1348 | */ |
| 1349 | nea_emagic_t *nea_emagic_get(nea_event_t *ev) |
| 1350 | { |
| 1351 | assert(ev)((void) sizeof ((ev) ? 1 : 0), __extension__ ({ if (ev) ; else __assert_fail ("ev", "nea_server.c", 1351, __extension__ __PRETTY_FUNCTION__ ); })); |
| 1352 | |
| 1353 | return ev->ev_magic; |
| 1354 | } |
| 1355 | |
| 1356 | |
| 1357 | /* ----------------------------------------------------------------- */ |
| 1358 | /** Get named event */ |
| 1359 | nea_event_t *nea_event_get(nea_server_t const *nes, char const *e) |
| 1360 | { |
| 1361 | nea_event_t *ev = NULL((void*)0); |
| 1362 | |
| 1363 | for (ev = nes->nes_events; ev; ev = ev->ev_next) |
| 1364 | if (e == NULL((void*)0) || strcmp(ev->ev_event->o_type, e) == 0) |
| 1365 | break; |
| 1366 | |
| 1367 | return ev; |
| 1368 | } |
| 1369 | |
| 1370 | /* ----------------------------------------------------------------- */ |
| 1371 | nta_incoming_t *nea_sub_get_request(nea_sub_t *sub) |
| 1372 | { |
| 1373 | assert(sub)((void) sizeof ((sub) ? 1 : 0), __extension__ ({ if (sub) ; else __assert_fail ("sub", "nea_server.c", 1373, __extension__ __PRETTY_FUNCTION__ ); })); |
| 1374 | |
| 1375 | return sub->s_irq; |
| 1376 | } |
| 1377 | |
| 1378 | /** Invoke the event callback. |
| 1379 | * |
| 1380 | * The function nes_watcher_callback() calls the callback provided by the |
| 1381 | * application using the notifier object. |
| 1382 | * |
| 1383 | * @param nes pointer to notifier object |
| 1384 | * @param ev pointer to event view |
| 1385 | * @param s pointer to subscription object |
| 1386 | * @param sip pointer to subscribe request |
| 1387 | * |
| 1388 | * @return |
| 1389 | * The function nes_watcher_callback() returns -1 if the notifier object |
| 1390 | * has been destroyed by the callback function, 0 otherwise. |
| 1391 | */ |
| 1392 | static |
| 1393 | int nes_watcher_callback(nea_server_t *nes, |
| 1394 | nea_event_t *ev, |
| 1395 | nea_sub_t *s, |
| 1396 | sip_t const *sip, |
| 1397 | sip_time_t now) |
| 1398 | { |
| 1399 | if (!nes->nes_in_callback) { |
| 1400 | nes->nes_in_callback = 1; |
| 1401 | if (ev->ev_callback && !s->s_reported) { |
| 1402 | nea_subnode_t sn[1]; |
| 1403 | |
| 1404 | nea_subnode_init(sn, s, now); |
| 1405 | |
| 1406 | if (sn->sn_expires == 0 || sn->sn_state == nea_terminated) |
| 1407 | s->s_reported = 1; |
| 1408 | |
| 1409 | ev->ev_callback(nes, ev->ev_magic, ev, sn, sip); |
| 1410 | } |
| 1411 | nes->nes_in_callback = 0; |
| 1412 | |
| 1413 | if (nes->nes_in_list) |
| 1414 | return 0; |
| 1415 | |
| 1416 | if (nes->nes_pending_destroy) { |
| 1417 | nea_server_destroy(nes); |
| 1418 | return -2; |
| 1419 | } |
| 1420 | |
| 1421 | if (sip == NULL((void*)0) && nes->nes_pending_flush) { |
| 1422 | int flushed = s->s_pending_flush; |
| 1423 | nea_server_pending_flush(nes); |
| 1424 | if (flushed) |
| 1425 | return -1; |
| 1426 | } |
| 1427 | } |
| 1428 | |
| 1429 | return 0; |
| 1430 | } |
| 1431 | |
| 1432 | /* ----------------------------------------------------------------- */ |
| 1433 | |
| 1434 | #if 0 |
| 1435 | /** Process incoming SUBSCRIBE message. |
| 1436 | * |
| 1437 | * The function nea_server_add() is called when the notifier receives a |
| 1438 | * SUBSCRIBE request without existing event dialog. |
| 1439 | * |
| 1440 | * @param nes pointer to notifier |
| 1441 | * @param local_target optional contact header |
| 1442 | * @param msg pointer to request message |
| 1443 | * @param sip pointer to SIP view to request message |
| 1444 | * |
| 1445 | * @return |
| 1446 | * The function nea_server_add() returns 0 if successful, -1 upon an |
| 1447 | * error. |
| 1448 | * |
| 1449 | */ |
| 1450 | int nea_server_add(nea_server_t *nes, |
| 1451 | sip_contact_t const *local_target, |
| 1452 | msg_t *msg, sip_t *sip) |
| 1453 | { |
| 1454 | su_home_t *home = nes->nes_home; |
| 1455 | nea_sub_t *s = NULL((void*)0); |
| 1456 | url_t target[1]; |
| 1457 | |
| 1458 | s = nea_sub_create(nes); |
| 1459 | |
| 1460 | s->s_from = sip_from_dup(home, sip->sip_from); |
| 1461 | |
| 1462 | if (local_target == NULL((void*)0)) |
| 1463 | local_target = nes->nes_eventity_uri; |
| 1464 | |
| 1465 | s->s_local = sip_contact_dup(nes->nes_home, local_target); |
| 1466 | |
| 1467 | *target = *local_target->m_url; |
| 1468 | |
| 1469 | s->s_leg = nta_leg_tcreate(nes->nes_agent, nea_sub_process_incoming, s, |
| 1470 | SIPTAG_CALL_ID(sip->sip_call_id)siptag_call_id, siptag_call_id_v(sip->sip_call_id), |
| 1471 | SIPTAG_FROM(sip->sip_to)siptag_from, siptag_from_v(sip->sip_to), /* local address */ |
| 1472 | SIPTAG_TO(sip->sip_from)siptag_to, siptag_to_v(sip->sip_from), /* remote address */ |
| 1473 | URLTAG_URL(target)urltag_url, urltag_url_v(target), |
| 1474 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1475 | |
| 1476 | if (s->s_local && s->s_leg) { |
| 1477 | nta_leg_tag(s->s_leg, NULL((void*)0)); |
| 1478 | return 0; |
| 1479 | } |
| 1480 | else { |
| 1481 | nea_sub_destroy(s); |
| 1482 | return -1; |
| 1483 | } |
| 1484 | } |
| 1485 | #endif |
| 1486 | |
| 1487 | static |
| 1488 | int nea_server_callback(nea_sub_t *nes_as_sub, |
| 1489 | nta_leg_t *leg, |
| 1490 | nta_incoming_t *irq, |
| 1491 | sip_t const *sip) |
| 1492 | { |
| 1493 | return nea_server_add_irq((nea_server_t *)nes_as_sub, leg, NULL((void*)0), irq, sip); |
| 1494 | } |
| 1495 | |
| 1496 | /** Process incoming request */ |
| 1497 | int nea_server_add_irq(nea_server_t *nes, |
| 1498 | nta_leg_t *leg, |
| 1499 | sip_contact_t const *local_target, |
| 1500 | nta_incoming_t *irq, |
| 1501 | sip_t const *sip) |
| 1502 | { |
| 1503 | nea_sub_t *s = nea_sub_create(nes); |
| 1504 | if (s == NULL((void*)0)) |
| 1505 | return 500; |
| 1506 | |
| 1507 | s->s_from = sip_from_dup(nes->nes_home, sip->sip_from); |
| 1508 | |
| 1509 | if (local_target == NULL((void*)0)) |
| 1510 | local_target = nes->nes_eventity_uri; |
| 1511 | |
| 1512 | s->s_local = sip_contact_dup(nes->nes_home, local_target); |
| 1513 | |
| 1514 | if (leg == NULL((void*)0) || leg == nes->nes_leg) { |
| 1515 | url_t target[1]; |
| 1516 | |
| 1517 | *target = *local_target->m_url; |
| 1518 | |
| 1519 | s->s_leg = nta_leg_tcreate(nes->nes_agent, nea_sub_process_incoming, s, |
| 1520 | SIPTAG_FROM(sip->sip_to)siptag_from, siptag_from_v(sip->sip_to), |
| 1521 | SIPTAG_TO(sip->sip_from)siptag_to, siptag_to_v(sip->sip_from), |
| 1522 | SIPTAG_CALL_ID(sip->sip_call_id)siptag_call_id, siptag_call_id_v(sip->sip_call_id), |
| 1523 | URLTAG_URL((url_string_t *)target)urltag_url, urltag_url_v((url_string_t *)target), |
| 1524 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 1525 | } |
| 1526 | else { |
| 1527 | nta_leg_bind(s->s_leg = leg, nea_sub_process_incoming, s); |
| 1528 | } |
| 1529 | |
| 1530 | if (s->s_leg) { |
| 1531 | if (sip->sip_to->a_tag == NULL((void*)0)) { |
| 1532 | nta_leg_tag(s->s_leg, NULL((void*)0)); |
| 1533 | nta_incoming_tag(irq, nta_leg_get_tag(s->s_leg)); |
| 1534 | } |
| 1535 | nta_leg_server_route(s->s_leg, sip->sip_record_route, sip->sip_contact); |
| 1536 | |
| 1537 | return nea_sub_process_incoming(s, s->s_leg, irq, sip); |
| 1538 | } |
| 1539 | else { |
| 1540 | nea_sub_destroy(s); |
| 1541 | return 500; |
| 1542 | } |
| 1543 | } |
| 1544 | |
| 1545 | |
| 1546 | /* ----------------------------------------------------------------- */ |
| 1547 | |
| 1548 | /**Process incoming transactions for event dialog. |
| 1549 | * |
| 1550 | * The nea_sub_process_incoming() processes the transactions for event |
| 1551 | * dialog. Currently, no other methods allowed beside SUBSCRIBE. The |
| 1552 | * SUBSCRIBE is processed by nea_sub_process_subscribe(). |
| 1553 | * |
| 1554 | * @param s pointer to subscriber object |
| 1555 | * @param leg pointer to NTA dialog object |
| 1556 | * @param irq pointer to NTA server transaction |
| 1557 | * @param sip pointer to structure containing SIP headers of the request |
| 1558 | * |
| 1559 | * The nea_sub_process_incoming() returns 0 if successful, SIP error code |
| 1560 | * otherwise. |
| 1561 | */ |
| 1562 | int nea_sub_process_incoming(nea_sub_t *s, |
| 1563 | nta_leg_t *leg, |
| 1564 | nta_incoming_t *irq, |
| 1565 | sip_t const *sip) |
| 1566 | { |
| 1567 | int retval; |
| 1568 | |
| 1569 | s->s_processing = 1; |
| 1570 | s->s_irq = irq; |
| 1571 | |
| 1572 | switch(sip->sip_request->rq_method) { |
| 1573 | case sip_method_subscribe: |
| 1574 | retval = nea_sub_process_subscribe(s, leg, irq, sip); |
| 1575 | break; |
| 1576 | |
| 1577 | default: |
| 1578 | nta_incoming_treply(irq, |
| 1579 | retval = SIP_405_METHOD_NOT_ALLOWED405, sip_405_Method_not_allowed, |
Although the value stored to 'retval' is used in the enclosing expression, the value is never actually read from 'retval' | |
| 1580 | SIPTAG_ALLOW_STR("SUBSCRIBE")siptag_allow_str, tag_str_v("SUBSCRIBE"), |
| 1581 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1582 | retval = 405; |
| 1583 | } |
| 1584 | |
| 1585 | s->s_processing = 0; |
| 1586 | |
| 1587 | if (s->s_irq) |
| 1588 | nta_incoming_destroy(irq), s->s_irq = NULL((void*)0); |
| 1589 | |
| 1590 | if (s->s_pending_flush || s->s_state == nea_embryonic) |
| 1591 | nea_sub_destroy(s); |
| 1592 | |
| 1593 | return retval; |
| 1594 | } |
| 1595 | |
| 1596 | |
| 1597 | /* ----------------------------------------------------------------- */ |
| 1598 | |
| 1599 | /**Process incoming SUBSCRIBE transactions for event dialog. |
| 1600 | * |
| 1601 | * The function nea_sub_process_subscribe() processes the SUBSCRIBE |
| 1602 | * transactions for (possible) event dialog. |
| 1603 | * |
| 1604 | * @param s pointer to subscriber object |
| 1605 | * @param leg pointer to NTA dialog object |
| 1606 | * @param irq pointer to NTA server transaction |
| 1607 | * @param sip pointer to structure containing SIP headers of the request |
| 1608 | * |
| 1609 | * @return |
| 1610 | * The function nea_sub_process_subscribe() returns 0 if successful, and a |
| 1611 | * SIP error code otherwise. |
| 1612 | */ |
| 1613 | int nea_sub_process_subscribe(nea_sub_t *s, |
| 1614 | nta_leg_t *leg, |
| 1615 | nta_incoming_t *irq, |
| 1616 | sip_t const *sip) |
| 1617 | { |
| 1618 | nea_server_t *nes = s->s_nes; |
| 1619 | su_home_t *home = nes->nes_home; |
| 1620 | nea_event_t *ev = NULL((void*)0), *ev_maybe = NULL((void*)0); |
| 1621 | nea_event_view_t *evv = NULL((void*)0), *evv_maybe = NULL((void*)0); |
| 1622 | sip_time_t delta = 0, now = sip_now(); |
| 1623 | sip_expires_t expires[1] = { SIP_EXPIRES_INIT(){{{ 0, 0, sip_expires_class }}} }; |
| 1624 | sip_unsupported_t *unsupported; |
| 1625 | sip_event_t const *o; |
| 1626 | sip_accept_t const *ac = NULL((void*)0), *accept = NULL((void*)0); |
| 1627 | sip_accept_t *a0 = NULL((void*)0), *a, *a_next, **aa; |
| 1628 | sip_accept_t accept_default[1]; |
| 1629 | unsigned proposed_throttle; |
| 1630 | char const *type, *throttle; |
| 1631 | int once, what, supported_eventlist, require_eventlist; |
| 1632 | |
| 1633 | if (sip->sip_payload && !sip->sip_content_type) { |
| 1634 | nta_incoming_treply(irq, 400, "Missing Content-Type", |
| 1635 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1636 | SIPTAG_ALLOW_EVENTS(nes->nes_allow_events)siptag_allow_events, siptag_allow_events_v(nes->nes_allow_events ), |
| 1637 | SIPTAG_ALLOW(nes->nes_allow_methods)siptag_allow, siptag_allow_v(nes->nes_allow_methods), |
| 1638 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 1639 | return 0; |
| 1640 | } |
| 1641 | |
| 1642 | if (sip->sip_expires && |
| 1643 | sip->sip_expires->ex_delta > 0 && |
| 1644 | sip->sip_expires->ex_delta < nes->nes_min_expires) { |
| 1645 | sip_min_expires_t me[1]; |
| 1646 | |
| 1647 | sip_min_expires_init(me); |
| 1648 | |
| 1649 | me->me_delta = nes->nes_min_expires; |
| 1650 | |
| 1651 | nta_incoming_treply(irq, 423, "Subscription Interval Too Small", |
| 1652 | SIPTAG_ACCEPT(accept)siptag_accept, siptag_accept_v(accept), |
| 1653 | SIPTAG_MIN_EXPIRES(me)siptag_min_expires, siptag_min_expires_v(me), |
| 1654 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1655 | SIPTAG_ALLOW_EVENTS(nes->nes_allow_events)siptag_allow_events, siptag_allow_events_v(nes->nes_allow_events ), |
| 1656 | SIPTAG_ALLOW(nes->nes_allow_methods)siptag_allow, siptag_allow_v(nes->nes_allow_methods), |
| 1657 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 1658 | return 0; |
| 1659 | } |
| 1660 | |
| 1661 | /* Check features */ |
| 1662 | if (nes->nes_require) { |
| 1663 | unsupported = sip_has_unsupported2(nes->nes_home, |
| 1664 | sip->sip_supported, |
| 1665 | sip->sip_require, |
| 1666 | nes->nes_require); |
| 1667 | |
| 1668 | if (unsupported) { |
| 1669 | nta_incoming_treply(irq, SIP_421_EXTENSION_REQUIRED421, sip_421_Extension_required, |
| 1670 | SIPTAG_REQUIRE(nes->nes_require)siptag_require, siptag_require_v(nes->nes_require), |
| 1671 | SIPTAG_UNSUPPORTED(unsupported)siptag_unsupported, siptag_unsupported_v(unsupported), |
| 1672 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1673 | SIPTAG_ALLOW_EVENTS(nes->nes_allow_events)siptag_allow_events, siptag_allow_events_v(nes->nes_allow_events ), |
| 1674 | SIPTAG_ALLOW(nes->nes_allow_methods)siptag_allow, siptag_allow_v(nes->nes_allow_methods), |
| 1675 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 1676 | su_free(nes->nes_home, unsupported); |
| 1677 | |
| 1678 | return 0; |
| 1679 | } |
| 1680 | } |
| 1681 | |
| 1682 | supported_eventlist = sip_has_feature(sip->sip_supported, "eventlist"); |
| 1683 | require_eventlist = sip_has_feature(sip->sip_require, "eventlist"); |
| 1684 | supported_eventlist = supported_eventlist || require_eventlist; |
| 1685 | |
| 1686 | if (s->s_id && (!sip->sip_event || |
| 1687 | str0cmp(s->s_id->o_type, sip->sip_event->o_type) != 0 || |
| 1688 | str0cmp(s->s_id->o_id, sip->sip_event->o_id))) { |
| 1689 | /* Multiple subscriptions per dialog are not supported. */ |
| 1690 | return nta_incoming_treply(irq, 501, |
| 1691 | "Multiple subscriptions not implemented", |
| 1692 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1693 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 1694 | } |
| 1695 | |
| 1696 | /* Check that subscriber asks for a supported event */ |
| 1697 | for (once = 0; ev == NULL((void*)0) ;once++) { |
| 1698 | o = sip->sip_event; |
| 1699 | |
| 1700 | /* Check that we have a matching event */ |
| 1701 | if (o && o->o_type) { |
| 1702 | for (ev = nes->nes_events; ev; ev = ev->ev_next) { |
| 1703 | if (strcmp(o->o_type, ev->ev_event->o_type) == 0) { |
| 1704 | ev_maybe = ev; |
| 1705 | |
| 1706 | if (ev->ev_eventlist) { |
| 1707 | if (supported_eventlist) |
| 1708 | break; |
| 1709 | } else { |
| 1710 | if (!supported_eventlist) |
| 1711 | break; |
| 1712 | } |
| 1713 | } |
| 1714 | } |
| 1715 | } |
| 1716 | |
| 1717 | if (!ev && !require_eventlist) |
| 1718 | ev = ev_maybe; |
| 1719 | |
| 1720 | if (ev || once) |
| 1721 | break; |
| 1722 | |
| 1723 | /* Ask the application either to |
| 1724 | 1) add a new event or assing us an event/payload (0), |
| 1725 | 2) take care of transaction (positive), or |
| 1726 | 3) drop request (negative). |
| 1727 | */ |
| 1728 | if ((what = nes_new_event_callback(nes, &ev, &evv, irq, sip)) < 0) |
| 1729 | break; |
| 1730 | if (what > 0) { |
| 1731 | s->s_irq = NULL((void*)0); |
| 1732 | return 0; |
| 1733 | } |
| 1734 | } |
| 1735 | |
| 1736 | if (ev_maybe == NULL((void*)0) && ev == NULL((void*)0)) { |
| 1737 | nta_incoming_treply(irq, SIP_489_BAD_EVENT489, sip_489_Bad_event, |
| 1738 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1739 | SIPTAG_ALLOW_EVENTS(nes->nes_allow_events)siptag_allow_events, siptag_allow_events_v(nes->nes_allow_events ), |
| 1740 | SIPTAG_ALLOW(nes->nes_allow_methods)siptag_allow, siptag_allow_v(nes->nes_allow_methods), |
| 1741 | NULL((void*)0)); |
| 1742 | return 0; |
| 1743 | } else if (ev == NULL((void*)0)) { |
| 1744 | ev = ev_maybe; |
| 1745 | |
| 1746 | unsupported = sip_has_unsupported(nes->nes_home, ev->ev_supported, |
| 1747 | sip->sip_require); |
| 1748 | |
| 1749 | nta_incoming_treply(irq, SIP_420_BAD_EXTENSION420, sip_420_Bad_extension, |
| 1750 | SIPTAG_UNSUPPORTED(unsupported)siptag_unsupported, siptag_unsupported_v(unsupported), |
| 1751 | SIPTAG_REQUIRE(ev->ev_require)siptag_require, siptag_require_v(ev->ev_require), |
| 1752 | SIPTAG_SUPPORTED(ev->ev_supported)siptag_supported, siptag_supported_v(ev->ev_supported), |
| 1753 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1754 | SIPTAG_ALLOW_EVENTS(nes->nes_allow_events)siptag_allow_events, siptag_allow_events_v(nes->nes_allow_events ), |
| 1755 | SIPTAG_ALLOW(nes->nes_allow_methods)siptag_allow, siptag_allow_v(nes->nes_allow_methods), |
| 1756 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 1757 | |
| 1758 | su_free(nes->nes_home, unsupported); |
| 1759 | |
| 1760 | return 0; |
| 1761 | } |
| 1762 | |
| 1763 | if (sip->sip_accept) |
| 1764 | accept = sip->sip_accept; |
| 1765 | else if (evv && evv->evv_content_typeevv_head->evq_content_type) { |
| 1766 | /* Generate accept header from event view specified by application */ |
| 1767 | sip_accept_init(accept_default); |
| 1768 | accept_default->ac_type = evv->evv_content_typeevv_head->evq_content_type->c_type; |
| 1769 | accept_default->ac_subtype = evv->evv_content_typeevv_head->evq_content_type->c_subtype; |
| 1770 | |
| 1771 | accept = a0; |
| 1772 | } |
| 1773 | else |
| 1774 | accept = ev->ev_default; |
| 1775 | |
| 1776 | for (once = 0; evv == NULL((void*)0) ;once++) { |
| 1777 | /* If there are multiple accept values with different Q values, |
| 1778 | insertion sort by Q value */ |
| 1779 | for (ac = accept->ac_next; ac; ac = ac->ac_next) { |
| 1780 | if (ac->ac_q != accept->ac_q) { |
| 1781 | if ((a0 = sip_accept_dup(home, accept))) { |
| 1782 | /* Sort the accept list by Q values */ |
| 1783 | for (a = a0, accept = NULL((void*)0); a; a = a_next) { |
| 1784 | a_next = a->ac_next; |
| 1785 | |
| 1786 | for (aa = (sip_accept_t **)&accept; |
| 1787 | *aa && sip_q_value((*aa)->ac_q) >= sip_q_value(a->ac_q); |
| 1788 | aa = &(*aa)->ac_next) |
| 1789 | ; |
| 1790 | |
| 1791 | a->ac_next = *aa; *aa = a; /* Insert */ |
| 1792 | } |
| 1793 | } |
| 1794 | |
| 1795 | break; |
| 1796 | } |
| 1797 | } |
| 1798 | |
| 1799 | /* Check that subscriber asks for a supported content type */ |
| 1800 | for (ac = accept; ac; ac = ac->ac_next) { |
| 1801 | int i; |
| 1802 | |
| 1803 | if (ac->ac_type == NULL((void*)0) || ac->ac_subtype == NULL((void*)0)) |
| 1804 | continue; |
| 1805 | |
| 1806 | /* Check all supported content types v. accept */ |
| 1807 | for (i = 0; (evv = ev->ev_views[i]); i++) { |
| 1808 | assert(evv->evv_content_type && evv->evv_content_type->c_type)((void) sizeof ((evv->evv_head->evq_content_type && evv->evv_head->evq_content_type->c_type) ? 1 : 0), __extension__ ({ if (evv->evv_head->evq_content_type && evv-> evv_head->evq_content_type->c_type) ; else __assert_fail ("evv->evv_content_type && evv->evv_content_type->c_type" , "nea_server.c", 1808, __extension__ __PRETTY_FUNCTION__); } )); |
| 1809 | |
| 1810 | if (strcmp(ac->ac_type, "*/*") == 0) |
| 1811 | break; |
| 1812 | |
| 1813 | type = evv->evv_content_typeevv_head->evq_content_type->c_type; |
| 1814 | |
| 1815 | if ((su_casematch(ac->ac_type, type)) || |
| 1816 | (su_casematch(ac->ac_subtype, "*") && |
| 1817 | su_casenmatch(ac->ac_type, type, |
| 1818 | ac->ac_subtype - ac->ac_type))) { |
| 1819 | if (evv_maybe == NULL((void*)0)) |
| 1820 | evv_maybe = evv; |
| 1821 | } |
| 1822 | } |
| 1823 | |
| 1824 | if (evv) /* Found */ |
| 1825 | break; |
| 1826 | } |
| 1827 | |
| 1828 | /* Free the sorted Accept list */ |
| 1829 | for (a = a0; a; a = a_next) |
| 1830 | a_next = a->ac_next, su_free(home, a); |
| 1831 | |
| 1832 | if (!evv) |
| 1833 | evv = evv_maybe; |
| 1834 | |
| 1835 | if (evv || once) |
| 1836 | break; |
| 1837 | |
| 1838 | /* Ask the application either to |
| 1839 | 1) add a new event view or assign us an event view (0), |
| 1840 | 2) take care of transaction (positive), or |
| 1841 | 3) drop request (negative). |
| 1842 | */ |
| 1843 | if ((what = nes_new_event_callback(nes, &ev, &evv, irq, sip)) < 0) |
| 1844 | break; |
| 1845 | if (what > 0) { |
| 1846 | s->s_irq = NULL((void*)0); |
| 1847 | return 0; |
| 1848 | } |
| 1849 | } |
| 1850 | |
| 1851 | if (evv == NULL((void*)0)) { |
| 1852 | SU_DEBUG_3(("nea_server: event %s rejected %u %s\n",((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 3 ? (_su_llog((nea_log), 3, "nea_server.c", (const char *)__func__, 1853, "nea_server: event %s rejected %u %s\n" , ev->ev_event->o_type, 406, sip_406_Not_acceptable)) : (void)0) |
| 1853 | ev->ev_event->o_type, SIP_406_NOT_ACCEPTABLE))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 3 ? (_su_llog((nea_log), 3, "nea_server.c", (const char *)__func__, 1853, "nea_server: event %s rejected %u %s\n" , ev->ev_event->o_type, 406, sip_406_Not_acceptable)) : (void)0); |
| 1854 | |
| 1855 | /* There is no media acceptable to watcher */ |
| 1856 | return nta_incoming_treply(irq, SIP_406_NOT_ACCEPTABLE406, sip_406_Not_acceptable, |
| 1857 | SIPTAG_ACCEPT(ev->ev_accept)siptag_accept, siptag_accept_v(ev->ev_accept), |
| 1858 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1859 | SIPTAG_ALLOW_EVENTS(nes->nes_allow_events)siptag_allow_events, siptag_allow_events_v(nes->nes_allow_events ), |
| 1860 | SIPTAG_ALLOW(nes->nes_allow_methods)siptag_allow, siptag_allow_v(nes->nes_allow_methods), |
| 1861 | TAG_NULL()(tag_type_t)0, (tag_value_t)0); |
| 1862 | } |
| 1863 | |
| 1864 | /* Do not change private view */ |
| 1865 | if (s->s_view && s->s_view->evv_primary == evv) |
| 1866 | evv = s->s_view; |
| 1867 | |
| 1868 | /* Set throttle */ |
| 1869 | if (sip->sip_event && |
| 1870 | (throttle = sip_params_findmsg_params_find(sip->sip_event->o_params, "throttle="))) { |
| 1871 | proposed_throttle = strtoul(throttle, NULL((void*)0), 10); |
| 1872 | |
| 1873 | if (proposed_throttle < evv->evv_min_throttle) |
| 1874 | proposed_throttle = evv->evv_min_throttle; |
| 1875 | } else |
| 1876 | proposed_throttle = evv->evv_throttle; |
| 1877 | |
| 1878 | s->s_throttle = proposed_throttle; |
| 1879 | |
| 1880 | /* Update route, store remote contact */ |
| 1881 | nta_leg_server_route(leg, sip->sip_record_route, sip->sip_contact); |
| 1882 | su_free(home, s->s_remote); |
| 1883 | s->s_remote = sip_contact_dup(home, sip->sip_contact); |
| 1884 | |
| 1885 | /* Store content-type and body */ |
| 1886 | if (sip->sip_content_type) { |
| 1887 | su_free(home, s->s_content_type); |
| 1888 | s->s_content_type = sip_content_type_dup(home, sip->sip_content_type); |
| 1889 | su_free(home, s->s_payload); |
| 1890 | s->s_payload = sip_payload_dup(home, sip->sip_payload); |
| 1891 | } |
| 1892 | |
| 1893 | /* Calculate expiration time for subscription */ |
| 1894 | delta = sip_contact_expires(NULL((void*)0), sip->sip_expires, sip->sip_date, |
| 1895 | nes->nes_expires, now); |
| 1896 | if (delta > nes->nes_max_expires) |
| 1897 | delta = nes->nes_max_expires; |
| 1898 | expires->ex_delta = delta; |
| 1899 | |
| 1900 | if (s->s_subscribed == 0) |
| 1901 | s->s_subscribed = now; |
| 1902 | s->s_expires = now + delta; |
| 1903 | /* s->s_accept = sip_accept_dup(home, accept); */ |
| 1904 | if (s->s_id == NULL((void*)0)) |
| 1905 | s->s_id = sip_event_dup(home, sip->sip_event); |
| 1906 | s->s_event = ev; |
| 1907 | s->s_eventlist = supported_eventlist; |
| 1908 | nea_sub_assign_view(s, evv); |
| 1909 | s->s_updated = evv->evv_updatedevv_head->evq_updated - 1; /* Force notify */ |
| 1910 | |
| 1911 | if (nes->nes_202_before_notify) { |
| 1912 | nta_incoming_treply(irq, SIP_202_ACCEPTED202, sip_202_Accepted, |
| 1913 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1914 | SIPTAG_ALLOW_EVENTS(nes->nes_allow_events)siptag_allow_events, siptag_allow_events_v(nes->nes_allow_events ), |
| 1915 | SIPTAG_ALLOW(nes->nes_allow_methods)siptag_allow, siptag_allow_v(nes->nes_allow_methods), |
| 1916 | SIPTAG_REQUIRE(ev->ev_require)siptag_require, siptag_require_v(ev->ev_require), |
| 1917 | SIPTAG_SUPPORTED(ev->ev_supported)siptag_supported, siptag_supported_v(ev->ev_supported), |
| 1918 | SIPTAG_EXPIRES(expires)siptag_expires, siptag_expires_v(expires), |
| 1919 | SIPTAG_CONTACT(s->s_local)siptag_contact, siptag_contact_v(s->s_local), |
| 1920 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1921 | nta_incoming_destroy(irq), s->s_irq = irq = NULL((void*)0); |
| 1922 | } |
| 1923 | |
| 1924 | /* Callback for checking subscriber authorization */ |
| 1925 | if (nes_watcher_callback(nes, ev, s, sip, now) < 0) { |
| 1926 | if (irq) { |
| 1927 | nta_incoming_treply(irq, SIP_503_SERVICE_UNAVAILABLE503, sip_503_Service_unavailable, TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1928 | nta_incoming_destroy(irq); |
| 1929 | } |
| 1930 | return -1; |
| 1931 | } |
| 1932 | |
| 1933 | |
| 1934 | |
| 1935 | evv = s->s_view; /* Callback can change event view */ |
| 1936 | |
| 1937 | if (s->s_state == nea_embryonic) |
| 1938 | nea_sub_auth(s, nea_pending, NEATAG_FAKE(1)neatag_fake, tag_bool_v((1)), TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1939 | |
| 1940 | if (s->s_updated != evv->evv_updatedevv_head->evq_updated && !(irq && s->s_rejected)) |
| 1941 | nea_sub_notify(nes, s, now, TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1942 | |
| 1943 | if (irq) { |
| 1944 | if (s->s_rejected) |
| 1945 | nta_incoming_treply(irq, SIP_403_FORBIDDEN403, sip_403_Forbidden, |
| 1946 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1947 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1948 | else if (s->s_state == nea_active) |
| 1949 | nta_incoming_treply(irq, SIP_200_OK200, sip_200_OK, |
| 1950 | SIPTAG_REQUIRE(ev->ev_require)siptag_require, siptag_require_v(ev->ev_require), |
| 1951 | SIPTAG_SUPPORTED(ev->ev_supported)siptag_supported, siptag_supported_v(ev->ev_supported), |
| 1952 | SIPTAG_EXPIRES(expires)siptag_expires, siptag_expires_v(expires), |
| 1953 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1954 | SIPTAG_CONTACT(s->s_local)siptag_contact, siptag_contact_v(s->s_local), |
| 1955 | SIPTAG_ALLOW_EVENTS(nes->nes_allow_events)siptag_allow_events, siptag_allow_events_v(nes->nes_allow_events ), |
| 1956 | SIPTAG_ALLOW(nes->nes_allow_methods)siptag_allow, siptag_allow_v(nes->nes_allow_methods), |
| 1957 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1958 | else |
| 1959 | nta_incoming_treply(irq, SIP_202_ACCEPTED202, sip_202_Accepted, |
| 1960 | SIPTAG_REQUIRE(ev->ev_require)siptag_require, siptag_require_v(ev->ev_require), |
| 1961 | SIPTAG_SUPPORTED(ev->ev_supported)siptag_supported, siptag_supported_v(ev->ev_supported), |
| 1962 | SIPTAG_EXPIRES(expires)siptag_expires, siptag_expires_v(expires), |
| 1963 | SIPTAG_SERVER_STR(nes->nes_server)siptag_server_str, tag_str_v(nes->nes_server), |
| 1964 | SIPTAG_ALLOW_EVENTS(nes->nes_allow_events)siptag_allow_events, siptag_allow_events_v(nes->nes_allow_events ), |
| 1965 | SIPTAG_ALLOW(nes->nes_allow_methods)siptag_allow, siptag_allow_v(nes->nes_allow_methods), |
| 1966 | SIPTAG_CONTACT(s->s_local)siptag_contact, siptag_contact_v(s->s_local), |
| 1967 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 1968 | } |
| 1969 | |
| 1970 | return 0; |
| 1971 | } |
| 1972 | |
| 1973 | /* ----------------------------------------------------------------- */ |
| 1974 | /**Notify subscriber |
| 1975 | * |
| 1976 | * The function nea_sub_notify() sends a notification to the subscriber. The |
| 1977 | * event type is specified by subscriber event, payload type and payload in |
| 1978 | * the event view. The responses to the NOTIFY transaction are |
| 1979 | * processed by response_to_notify(). |
| 1980 | * |
| 1981 | * @param nes pointer to the notifier object |
| 1982 | * @param s pointer to the subscription object |
| 1983 | * @param now current SIP time (if 0, no body is sent, |
| 1984 | * but updated Subscription-State header only |
| 1985 | * @param tag,value,... tag list |
| 1986 | * |
| 1987 | */ |
| 1988 | int nea_sub_notify(nea_server_t *nes, nea_sub_t *s, |
| 1989 | sip_time_t now, |
| 1990 | tag_type_t tag, tag_value_t value, ...) |
| 1991 | { |
| 1992 | int notified = 0; |
| 1993 | ta_list ta; |
| 1994 | int suppress = now != 0; |
| 1995 | nea_event_t *ev = s->s_event; |
| 1996 | nea_state_t substate = s->s_state; |
| 1997 | |
| 1998 | if (s->s_pending_flush || (s->s_oreq && substate != nea_terminated)) { |
| 1999 | if (ev && ev->ev_throttling > s->s_updated) |
| 2000 | ev->ev_throttling = s->s_updated; |
| 2001 | return 0; |
| 2002 | } |
| 2003 | |
| 2004 | if (s->s_oreq) |
| 2005 | nta_outgoing_destroy(s->s_oreq), s->s_oreq = NULL((void*)0); |
| 2006 | |
| 2007 | assert(s->s_view)((void) sizeof ((s->s_view) ? 1 : 0), __extension__ ({ if ( s->s_view) ; else __assert_fail ("s->s_view", "nea_server.c" , 2007, __extension__ __PRETTY_FUNCTION__); })); assert(ev)((void) sizeof ((ev) ? 1 : 0), __extension__ ({ if (ev) ; else __assert_fail ("ev", "nea_server.c", 2007, __extension__ __PRETTY_FUNCTION__ ); })); |
| 2008 | |
| 2009 | if (suppress && s->s_view->evv_updatedevv_head->evq_updated == s->s_updated) |
| 2010 | return 0; |
| 2011 | |
| 2012 | if (now == 0) |
| 2013 | now = sip_now(); |
| 2014 | |
| 2015 | if (s->s_notified + s->s_throttle > now && |
| 2016 | /* Do not throttle state termination notification */ |
| 2017 | substate != nea_terminated && |
| 2018 | (long)(s->s_expires - now) > 0) { |
| 2019 | if (ev->ev_throttling > s->s_updated && !s->s_fake) |
| 2020 | ev->ev_throttling = s->s_updated; |
| 2021 | nes->nes_throttled++; |
| 2022 | return 0; |
| 2023 | } |
| 2024 | |
| 2025 | ta_start(ta, tag, value)do { tag_type_t ta_start__tag = (tag); tag_value_t ta_start__value = (value); __builtin_va_start((ta).ap, (value)); while ((ta_start__tag ) == tag_next && (ta_start__value) != 0) { ta_start__tag = ((tagi_t *)ta_start__value)->t_tag; if (ta_start__tag == tag_null || ta_start__tag == ((void*)0)) break; if (ta_start__tag == tag_next) { ta_start__value = ((tagi_t *)ta_start__value) ->t_value; } else { ta_start__tag = tag_next; break; } } ( ta).tl->t_tag = ta_start__tag; (ta).tl->t_value = ta_start__value ; if (ta_start__tag != ((void*)0) && ta_start__tag != tag_null && ta_start__tag != tag_next) { va_list ta_start__ap ; __builtin_va_copy((ta_start__ap), ((ta).ap)); (ta).tl[1].t_tag = tag_next; (ta).tl[1].t_value = (tag_value_t)tl_vlist(ta_start__ap ); __builtin_va_end(ta_start__ap); } else { (ta).tl[1].t_value = 0; (ta).tl[1].t_value = (tag_value_t)0; } } while(0); |
| 2026 | { |
| 2027 | sip_subscription_state_t ss[1]; |
| 2028 | char expires[32]; |
| 2029 | sip_param_t params[] = { NULL((void*)0), NULL((void*)0), NULL((void*)0) }; |
| 2030 | char const *reason = NULL((void*)0); |
| 2031 | int fake = 0; |
| 2032 | char reason_buf[64]; |
| 2033 | unsigned retry_after = (unsigned)-1; |
| 2034 | char retry_after_buf[64]; |
| 2035 | int i = 0; |
| 2036 | nta_response_f *callback; |
| 2037 | nea_event_view_t *evv = s->s_view; |
| 2038 | nea_event_queue_t *evq, *n_evq; |
| 2039 | |
| 2040 | assert(ev)((void) sizeof ((ev) ? 1 : 0), __extension__ ({ if (ev) ; else __assert_fail ("ev", "nea_server.c", 2040, __extension__ __PRETTY_FUNCTION__ ); })); |
| 2041 | |
| 2042 | sip_subscription_state_init(ss); |
| 2043 | |
| 2044 | tl_gets(ta_args(ta)(ta).tl, |
| 2045 | NEATAG_REASON_REF(reason)neatag_reason_ref, tag_str_vr((&reason)), |
| 2046 | NEATAG_FAKE_REF(fake)neatag_fake_ref, tag_bool_vr((&fake)), /* XXX - semantics??? */ |
| 2047 | NEATAG_RETRY_AFTER_REF(retry_after)neatag_retry_after_ref, tag_uint_vr((&retry_after)), |
| 2048 | TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 2049 | |
| 2050 | if (substate == nea_terminated) { |
| 2051 | if (reason) |
| 2052 | snprintf(reason_buf, sizeof(reason_buf), |
| 2053 | "reason=%s", reason), params[i++] = reason_buf; |
| 2054 | if (retry_after != (unsigned)-1) |
| 2055 | snprintf(retry_after_buf, sizeof(retry_after_buf), |
| 2056 | "retry-after=%u", retry_after), params[i++] = retry_after_buf; |
| 2057 | } |
| 2058 | else if ((long)(s->s_expires - now) <= 0) { |
| 2059 | substate = nea_terminated; |
| 2060 | params[i++] = "reason=timeout"; |
| 2061 | } |
| 2062 | else { |
| 2063 | snprintf(expires, sizeof(expires), |
| 2064 | "expires=%lu", (unsigned long)(s->s_expires - now)); |
| 2065 | params[i++] = expires; |
| 2066 | } |
| 2067 | |
| 2068 | ss->ss_params = params; |
| 2069 | |
| 2070 | switch (substate) { |
| 2071 | case nea_extended: ss->ss_substate = s->s_extended; break; |
| 2072 | case nea_pending: ss->ss_substate = "pending"; break; |
| 2073 | case nea_active: ss->ss_substate = "active"; break; |
| 2074 | case nea_terminated: ss->ss_substate = "terminated"; break; |
| 2075 | /* Do not send notifys for embryonic subscriptions */ |
| 2076 | case nea_embryonic: |
| 2077 | ta_end(ta)((((ta).tl[1].t_value) ? (tl_vfree((tagi_t *)((ta).tl[1].t_value ))) : (void)0), (ta).tl[1].t_value = 0, __builtin_va_end((ta) .ap)); |
| 2078 | return 0; |
| 2079 | } |
| 2080 | |
| 2081 | callback = substate != nea_terminated ? response_to_notify : NULL((void*)0); |
| 2082 | |
| 2083 | for (evq = evv->evv_head; evq->evq_next; evq = evq->evq_next) { |
| 2084 | if (evq->evq_next->evq_updated <= s->s_updated) |
| 2085 | break; |
| 2086 | } |
| 2087 | |
| 2088 | suppress = (s->s_view->evv_updatedevv_head->evq_updated == s->s_updated); |
| 2089 | |
| 2090 | n_evq = evq->evq_payload ? evq : evv->evv_primary->evv_head; |
| 2091 | |
| 2092 | s->s_oreq = |
| 2093 | nta_outgoing_tcreate(s->s_leg, |
| 2094 | callback, s, NULL((void*)0), |
| 2095 | SIP_METHOD_NOTIFYsip_method_notify, "NOTIFY", NULL((void*)0), |
| 2096 | SIPTAG_SUBSCRIPTION_STATE(ss)siptag_subscription_state, siptag_subscription_state_v(ss), |
| 2097 | SIPTAG_REQUIRE(ev->ev_require)siptag_require, siptag_require_v(ev->ev_require), |
| 2098 | SIPTAG_SUPPORTED(ev->ev_supported)siptag_supported, siptag_supported_v(ev->ev_supported), |
| 2099 | SIPTAG_USER_AGENT_STR(nes->nes_server)siptag_user_agent_str, tag_str_v(nes->nes_server), |
| 2100 | SIPTAG_CONTACT(s->s_local)siptag_contact, siptag_contact_v(s->s_local), |
| 2101 | SIPTAG_EVENT(s->s_id)siptag_event, siptag_event_v(s->s_id), |
| 2102 | TAG_IF(!suppress,!(!suppress) ? tag_skip : siptag_content_type, siptag_content_type_v (n_evq->evq_content_type) |
| 2103 | SIPTAG_CONTENT_TYPE(n_evq->evq_content_type))!(!suppress) ? tag_skip : siptag_content_type, siptag_content_type_v (n_evq->evq_content_type), |
| 2104 | TAG_IF(!suppress,!(!suppress) ? tag_skip : siptag_payload, siptag_payload_v(n_evq ->evq_payload) |
| 2105 | SIPTAG_PAYLOAD(n_evq->evq_payload))!(!suppress) ? tag_skip : siptag_payload, siptag_payload_v(n_evq ->evq_payload), |
| 2106 | ta_tags(ta)(ta).tl[0].t_tag, (ta).tl[0].t_value, (ta).tl[1].t_tag, (ta). tl[1].t_value); |
| 2107 | |
| 2108 | |
| 2109 | notified = s->s_oreq != 0; |
| 2110 | |
| 2111 | if (notified) { |
| 2112 | s->s_notified = now; |
| 2113 | s->s_state = substate; /* XXX - we need state for "waiting" */ |
| 2114 | s->s_latest = evq->evq_version; /* Application version */ |
| 2115 | s->s_updated = evq->evq_updated; /* Internal version */ |
| 2116 | if (ev->ev_throttling > s->s_updated) |
| 2117 | ev->ev_throttling = s->s_updated; |
| 2118 | } |
| 2119 | |
| 2120 | if (callback == NULL((void*)0)) { |
| 2121 | nta_outgoing_destroy(s->s_oreq), s->s_oreq = NULL((void*)0); |
| 2122 | /* Inform the application of a subscriber leaving the subscription. */ |
| 2123 | nes_watcher_callback(nes, ev, s, NULL((void*)0), now); |
| 2124 | } |
| 2125 | } |
| 2126 | ta_end(ta)((((ta).tl[1].t_value) ? (tl_vfree((tagi_t *)((ta).tl[1].t_value ))) : (void)0), (ta).tl[1].t_value = 0, __builtin_va_end((ta) .ap)); |
| 2127 | |
| 2128 | return notified; |
| 2129 | } |
| 2130 | |
| 2131 | /* ----------------------------------------------------------------- */ |
| 2132 | /**Process responses to the NOTIFY. |
| 2133 | * |
| 2134 | * The response_to_notify() processes the responses to the NOTIFY request. |
| 2135 | * If there was an error with delivering the NOTIFY, the subscription is |
| 2136 | * considered terminated. |
| 2137 | * |
| 2138 | * @param s pointer to subscription object |
| 2139 | */ |
| 2140 | int response_to_notify(nea_sub_t *s, |
| 2141 | nta_outgoing_t *oreq, |
| 2142 | sip_t const *sip) |
| 2143 | { |
| 2144 | nea_server_t *nes = s->s_nes; |
| 2145 | int status = sip->sip_status->st_status; |
| 2146 | sip_time_t now = sip_now(); |
| 2147 | |
| 2148 | if (status < 200) |
| 2149 | return 0; |
| 2150 | |
| 2151 | nta_outgoing_destroy(s->s_oreq), s->s_oreq = NULL((void*)0); |
| 2152 | |
| 2153 | if (status < 300) { |
| 2154 | if (s->s_view->evv_updatedevv_head->evq_updated != s->s_updated) { |
| 2155 | if (s->s_notified + s->s_throttle <= now) |
| 2156 | nea_sub_notify(nes, s, now, TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 2157 | else |
| 2158 | nes->nes_throttled++; |
| 2159 | } |
| 2160 | } |
| 2161 | |
| 2162 | if (s->s_state == nea_terminated || status >= 300) { |
| 2163 | SU_DEBUG_5(("nea_server: removing subscriber " URL_PRINT_FORMAT "\n",((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 2164, "nea_server: removing subscriber " "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s" "\n", (s->s_from-> a_url)->url_scheme ? (s->s_from->a_url)->url_scheme : "", (s->s_from->a_url)->url_type != url_any && (s->s_from->a_url)->url_scheme && (s->s_from ->a_url)->url_scheme[0] ? ":" : "", (s->s_from->a_url )->url_root && ((s->s_from->a_url)->url_host || (s->s_from->a_url)->url_user) ? "//" : "", (s-> s_from->a_url)->url_user ? (s->s_from->a_url)-> url_user : "", (s->s_from->a_url)->url_user && (s->s_from->a_url)->url_password ? ":" : "", (s-> s_from->a_url)->url_user && (s->s_from->a_url )->url_password ? (s->s_from->a_url)->url_password : "", (s->s_from->a_url)->url_user && (s-> s_from->a_url)->url_host ? "@" : "", (s->s_from-> a_url)->url_host ? (s->s_from->a_url)->url_host : "", (s->s_from->a_url)->url_host && (s-> s_from->a_url)->url_port ? ":" : "", (s->s_from-> a_url)->url_host && (s->s_from->a_url)->url_port ? (s->s_from->a_url)->url_port : "", (s->s_from-> a_url)->url_root && (s->s_from->a_url)->url_path ? "/" : "", (s->s_from->a_url)->url_path ? (s->s_from ->a_url)->url_path : "", (s->s_from->a_url)->url_params ? ";" : "", (s->s_from->a_url)->url_params ? (s-> s_from->a_url)->url_params : "", (s->s_from->a_url )->url_headers ? "?" : "", (s->s_from->a_url)->url_headers ? (s->s_from->a_url)->url_headers : "", (s->s_from ->a_url)->url_fragment ? "#" : "", (s->s_from->a_url )->url_fragment ? (s->s_from->a_url)->url_fragment : "")) : (void)0) |
| 2164 | URL_PRINT_ARGS(s->s_from->a_url)))((((nea_log) != ((void*)0) && (nea_log)->log_init) == 0 ? 9 : (((nea_log) != ((void*)0) && (nea_log)-> log_init > 1) ? (nea_log)->log_level : su_log_default-> log_level)) >= 5 ? (_su_llog((nea_log), 5, "nea_server.c", (const char *)__func__, 2164, "nea_server: removing subscriber " "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s" "\n", (s->s_from-> a_url)->url_scheme ? (s->s_from->a_url)->url_scheme : "", (s->s_from->a_url)->url_type != url_any && (s->s_from->a_url)->url_scheme && (s->s_from ->a_url)->url_scheme[0] ? ":" : "", (s->s_from->a_url )->url_root && ((s->s_from->a_url)->url_host || (s->s_from->a_url)->url_user) ? "//" : "", (s-> s_from->a_url)->url_user ? (s->s_from->a_url)-> url_user : "", (s->s_from->a_url)->url_user && (s->s_from->a_url)->url_password ? ":" : "", (s-> s_from->a_url)->url_user && (s->s_from->a_url )->url_password ? (s->s_from->a_url)->url_password : "", (s->s_from->a_url)->url_user && (s-> s_from->a_url)->url_host ? "@" : "", (s->s_from-> a_url)->url_host ? (s->s_from->a_url)->url_host : "", (s->s_from->a_url)->url_host && (s-> s_from->a_url)->url_port ? ":" : "", (s->s_from-> a_url)->url_host && (s->s_from->a_url)->url_port ? (s->s_from->a_url)->url_port : "", (s->s_from-> a_url)->url_root && (s->s_from->a_url)->url_path ? "/" : "", (s->s_from->a_url)->url_path ? (s->s_from ->a_url)->url_path : "", (s->s_from->a_url)->url_params ? ";" : "", (s->s_from->a_url)->url_params ? (s-> s_from->a_url)->url_params : "", (s->s_from->a_url )->url_headers ? "?" : "", (s->s_from->a_url)->url_headers ? (s->s_from->a_url)->url_headers : "", (s->s_from ->a_url)->url_fragment ? "#" : "", (s->s_from->a_url )->url_fragment ? (s->s_from->a_url)->url_fragment : "")) : (void)0); |
| 2165 | /* Inform the application of a subscriber leaving the subscription. */ |
| 2166 | nes_watcher_callback(nes, s->s_event, s, NULL((void*)0), now); |
| 2167 | } |
| 2168 | |
| 2169 | return 0; |
| 2170 | } |
| 2171 | |
| 2172 | /* ----------------------------------------------------------------- */ |
| 2173 | |
| 2174 | /** Get number of active subscribers. |
| 2175 | * |
| 2176 | * The function nea_server_active() counts the number of active subscribers |
| 2177 | * watching the specified view. If the view is not specified (@a ev is @c |
| 2178 | * NULL), it counts the number of all subscribers. |
| 2179 | * |
| 2180 | * @param nes notifier |
| 2181 | * @param ev event |
| 2182 | * |
| 2183 | * The function nea_server_active() returns number of active subscribers. |
| 2184 | */ |
| 2185 | int nea_server_active(nea_server_t *nes, nea_event_t const *ev) |
| 2186 | { |
| 2187 | int n = 0; |
| 2188 | nea_sub_t *s = NULL((void*)0); |
| 2189 | |
| 2190 | /* Count the number of subscribers watching this event */ |
| 2191 | for (s = nes->nes_subscribers; s ; s = s->s_next) |
| 2192 | if (!s->s_pending_flush && s->s_state == nea_active |
| 2193 | && (ev == NULL((void*)0) || ev == s->s_event)) |
| 2194 | n++; |
| 2195 | |
| 2196 | return n; |
| 2197 | } |
| 2198 | |
| 2199 | /** Get number of non-embryonic subscribers. |
| 2200 | * |
| 2201 | * The function nea_server_non_embryonic() counts the number of pending, |
| 2202 | * active or terminated subscribers watching the specified view. If the view |
| 2203 | * is not specified (@a ev is @c NULL), it counts the number of all |
| 2204 | * subscribers. |
| 2205 | * |
| 2206 | * @param nes notifier |
| 2207 | * @param ev event view |
| 2208 | * |
| 2209 | * The function nea_server_active() returns number of active subscribers. |
| 2210 | */ |
| 2211 | int nea_server_non_embryonic(nea_server_t *nes, nea_event_t const *ev) |
| 2212 | { |
| 2213 | int n = 0; |
| 2214 | nea_sub_t *s = NULL((void*)0); |
| 2215 | |
| 2216 | /* Count the number of subscribers watching this event */ |
| 2217 | for (s = nes->nes_subscribers; s ; s = s->s_next) |
| 2218 | if (!s->s_pending_flush && s->s_state != nea_embryonic |
| 2219 | && (ev == NULL((void*)0) || ev == s->s_event)) |
| 2220 | n++; |
| 2221 | |
| 2222 | return n; |
| 2223 | } |
| 2224 | |
| 2225 | /** Set application version number */ |
| 2226 | int nea_sub_version(nea_sub_t *s, unsigned version) |
| 2227 | { |
| 2228 | if (s) |
| 2229 | return s->s_version = version; |
| 2230 | return 0; |
| 2231 | } |
| 2232 | |
| 2233 | /** Authorize a subscription. |
| 2234 | * |
| 2235 | * Application can modify the subscription state and authorize the user. |
| 2236 | * The subscription state has following simple state diagram: |
| 2237 | * |
| 2238 | * @code |
| 2239 | * +---------------+ +------------------+ |
| 2240 | * | | | | |
| 2241 | * +-----------+ | +---------+ V | +------------+ V +------------+ |
| 2242 | * | embryonic |-+->| pending |--+-+->| authorized |--+->| terminated | |
| 2243 | * +-----------+ +---------+ +------------+ +------------+ |
| 2244 | * |
| 2245 | * @endcode |
| 2246 | * |
| 2247 | * @TAGS |
| 2248 | * IF NEATAG_VIEW(view) is included in tagged arguments, @a view is assigned |
| 2249 | * to the subscriber and the content from the view is delivered to the |
| 2250 | * subscriber. |
| 2251 | * |
| 2252 | * If NEATAG_FAKE(1) is included in tags, content marked as 'fake' is |
| 2253 | * delivered to the subscriber. |
| 2254 | * |
| 2255 | * @retval 0 if successful |
| 2256 | * @retval -1 upon an error |
| 2257 | */ |
| 2258 | int nea_sub_auth(nea_sub_t *s, |
| 2259 | nea_state_t state, |
| 2260 | tag_type_t tag, tag_value_t value, ...) |
| 2261 | { |
| 2262 | |
| 2263 | ta_list ta; |
| 2264 | int retval, embryonic, rejected = 0; |
| 2265 | int fake = 0; |
| 2266 | char const *reason = NULL((void*)0); |
| 2267 | nea_event_view_t *evv = NULL((void*)0); |
| 2268 | |
| 2269 | if (s == NULL((void*)0)) |
| 2270 | return -1; |
| 2271 | if (state == nea_embryonic) |
| 2272 | return -1; |
| 2273 | if (state < s->s_state) |
| 2274 | return -1; |
| 2275 | |
| 2276 | ta_start(ta, tag, value)do { tag_type_t ta_start__tag = (tag); tag_value_t ta_start__value = (value); __builtin_va_start((ta).ap, (value)); while ((ta_start__tag ) == tag_next && (ta_start__value) != 0) { ta_start__tag = ((tagi_t *)ta_start__value)->t_tag; if (ta_start__tag == tag_null || ta_start__tag == ((void*)0)) break; if (ta_start__tag == tag_next) { ta_start__value = ((tagi_t *)ta_start__value) ->t_value; } else { ta_start__tag = tag_next; break; } } ( ta).tl->t_tag = ta_start__tag; (ta).tl->t_value = ta_start__value ; if (ta_start__tag != ((void*)0) && ta_start__tag != tag_null && ta_start__tag != tag_next) { va_list ta_start__ap ; __builtin_va_copy((ta_start__ap), ((ta).ap)); (ta).tl[1].t_tag = tag_next; (ta).tl[1].t_value = (tag_value_t)tl_vlist(ta_start__ap ); __builtin_va_end(ta_start__ap); } else { (ta).tl[1].t_value = 0; (ta).tl[1].t_value = (tag_value_t)0; } } while(0); |
| 2277 | |
| 2278 | embryonic = s->s_state == nea_embryonic; |
| 2279 | |
| 2280 | s->s_state = state; |
| 2281 | |
| 2282 | if (tl_gets(ta_args(ta)(ta).tl, NEATAG_VIEW_REF(evv)neatag_view_ref, tag_ptr_vr((&evv), (evv)), TAG_END()(tag_type_t)0, (tag_value_t)0) && evv) { |
| 2283 | nea_sub_assign_view(s, evv); |
| 2284 | } |
| 2285 | else { |
| 2286 | if (tl_gets(ta_args(ta)(ta).tl, NEATAG_FAKE_REF(fake)neatag_fake_ref, tag_bool_vr((&fake)), TAG_END()(tag_type_t)0, (tag_value_t)0)) |
| 2287 | s->s_fake = fake; |
| 2288 | |
| 2289 | if (s->s_view && s->s_view->evv_fake != s->s_fake) { |
| 2290 | for (evv = s->s_view->evv_primary; evv; evv = evv->evv_next) |
| 2291 | if (!evv->evv_private && evv->evv_fake == s->s_fake) { |
| 2292 | nea_sub_assign_view(s, evv); |
| 2293 | break; |
| 2294 | } |
| 2295 | } |
| 2296 | } |
| 2297 | |
| 2298 | tl_gets(ta_args(ta)(ta).tl, NEATAG_REASON_REF(reason)neatag_reason_ref, tag_str_vr((&reason)), TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 2299 | |
| 2300 | rejected = su_casematch(reason, "rejected"); |
| 2301 | |
| 2302 | if (state == nea_terminated && embryonic && rejected && s->s_irq) |
| 2303 | retval = 0, s->s_rejected = 1; |
| 2304 | else |
| 2305 | retval = nea_sub_notify(s->s_nes, s, 0, ta_tags(ta)(ta).tl[0].t_tag, (ta).tl[0].t_value, (ta).tl[1].t_tag, (ta). tl[1].t_value); |
| 2306 | |
| 2307 | ta_end(ta)((((ta).tl[1].t_value) ? (tl_vfree((tagi_t *)((ta).tl[1].t_value ))) : (void)0), (ta).tl[1].t_value = 0, __builtin_va_end((ta) .ap)); |
| 2308 | |
| 2309 | return retval; |
| 2310 | } |
| 2311 | |
| 2312 | /** Obtain a list of subscribers */ |
| 2313 | nea_subnode_t const **nea_server_get_subscribers(nea_server_t *nes, |
| 2314 | nea_event_t const *ev) |
| 2315 | { |
| 2316 | nea_sub_t *s; |
| 2317 | nea_subnode_t **sn_list, *sn; |
| 2318 | int i, n; |
| 2319 | sip_time_t now = sip_now(); |
| 2320 | |
| 2321 | n = nea_server_non_embryonic(nes, ev); |
| 2322 | if (n == 0) |
| 2323 | return NULL((void*)0); |
| 2324 | |
| 2325 | sn_list = su_zalloc(nes->nes_home, |
| 2326 | (n + 1) * sizeof(sn) + n * sizeof(*sn)); |
| 2327 | if (sn_list) { |
| 2328 | sn = (nea_subnode_t *)(sn_list + n + 1); |
| 2329 | |
| 2330 | for (i = 0, s = nes->nes_subscribers; s; s = s->s_next) { |
| 2331 | if (!s->s_pending_flush && s->s_state != nea_embryonic |
| 2332 | && (ev == NULL((void*)0) || ev == s->s_event)) { |
| 2333 | assert(i < n)((void) sizeof ((i < n) ? 1 : 0), __extension__ ({ if (i < n) ; else __assert_fail ("i < n", "nea_server.c", 2333, __extension__ __PRETTY_FUNCTION__); })); |
| 2334 | nea_subnode_init(sn, s, now); |
| 2335 | sn_list[i++] = sn++; |
| 2336 | } |
| 2337 | } |
| 2338 | |
| 2339 | nes->nes_in_list++; |
| 2340 | |
| 2341 | sn_list[i] = NULL((void*)0); |
| 2342 | } |
| 2343 | |
| 2344 | return (nea_subnode_t const **)sn_list; |
| 2345 | } |
| 2346 | |
| 2347 | /** Free a list of subscriptions. */ |
| 2348 | void nea_server_free_subscribers(nea_server_t *nes, |
| 2349 | nea_subnode_t const **sn_list) |
| 2350 | { |
| 2351 | if (sn_list) { |
| 2352 | su_free(nes->nes_home, (void *)sn_list); |
| 2353 | if (--nes->nes_in_list == 0 && nes->nes_pending_flush) |
| 2354 | nea_server_pending_flush(nes); |
| 2355 | } |
| 2356 | } |
| 2357 | |
| 2358 | /* ----------------------------------------------------------------- */ |
| 2359 | void nes_event_timer(nea_server_t *srvr, |
| 2360 | su_timer_t *timer, |
| 2361 | su_timer_arg_t *arg) |
| 2362 | { |
| 2363 | nea_server_t *nes = (nea_server_t *) arg; |
| 2364 | sip_time_t now = sip_now(); |
| 2365 | nea_sub_t *s = NULL((void*)0), *s_next = NULL((void*)0); |
| 2366 | su_root_t *root = su_timer_root(timer); |
| 2367 | |
| 2368 | su_timer_set(timer, nes_event_timer, nes); |
| 2369 | |
| 2370 | nes->nes_in_list++; |
| 2371 | |
| 2372 | /* Notify and terminate expired subscriptions */ |
| 2373 | for (s = nes->nes_subscribers; s; s = s_next) { |
| 2374 | s_next = s->s_next; |
| 2375 | if (s->s_state == nea_terminated) |
| 2376 | continue; |
| 2377 | if ((int)(now - s->s_expires) >= 0) { |
| 2378 | nea_sub_notify(nes, s, now, TAG_END()(tag_type_t)0, (tag_value_t)0); |
| 2379 | /* Yield so we can handle received packets */ |
| 2380 | su_root_yield(root); |
| 2381 | } |
| 2382 | } |
| 2383 | |
| 2384 | if (--nes->nes_in_list == 0 && nes->nes_pending_flush) |
| 2385 | nea_server_pending_flush(nes); |
| 2386 | |
| 2387 | if (nes->nes_throttled) |
| 2388 | nea_server_notify(nes, NULL((void*)0)); |
| 2389 | |
| 2390 | return; |
| 2391 | } |