| File: | mod_hash.c |
| Warning: | line 560, column 8 Although the value stored to 'item' is used in the enclosing expression, the value is never actually read from 'item' |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | /* |
| 2 | * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application |
| 3 | * Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org> |
| 4 | * |
| 5 | * Version: MPL 1.1 |
| 6 | * |
| 7 | * The contents of this file are subject to the Mozilla Public License Version |
| 8 | * 1.1 (the "License"); you may not use this file except in compliance with |
| 9 | * the License. You may obtain a copy of the License at |
| 10 | * http://www.mozilla.org/MPL/ |
| 11 | * |
| 12 | * Software distributed under the License is distributed on an "AS IS" basis, |
| 13 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| 14 | * for the specific language governing rights and limitations under the |
| 15 | * License. |
| 16 | * |
| 17 | * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application |
| 18 | * |
| 19 | * The Initial Developer of the Original Code is |
| 20 | * Anthony Minessale II <anthm@freeswitch.org> |
| 21 | * Portions created by the Initial Developer are Copyright (C) |
| 22 | * the Initial Developer. All Rights Reserved. |
| 23 | * |
| 24 | * Contributor(s): |
| 25 | * |
| 26 | * Anthony Minessale II <anthm@freeswitch.org> |
| 27 | * Ken Rice <krice at suspicious dot org |
| 28 | * Mathieu Rene <mathieu.rene@gmail.com> |
| 29 | * Bret McDanel <trixter AT 0xdecafbad.com> |
| 30 | * Rupa Schomaker <rupa@rupa.com> |
| 31 | * |
| 32 | * mod_hash.c -- Hash api, hash backend for limit |
| 33 | * |
| 34 | */ |
| 35 | |
| 36 | #include <switch.h> |
| 37 | #include "esl.h" |
| 38 | |
| 39 | #define LIMIT_HASH_CLEANUP_INTERVAL900 900 |
| 40 | |
| 41 | SWITCH_MODULE_LOAD_FUNCTION(mod_hash_load)switch_status_t mod_hash_load (switch_loadable_module_interface_t **module_interface, switch_memory_pool_t *pool); |
| 42 | SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_hash_shutdown)switch_status_t mod_hash_shutdown (void); |
| 43 | SWITCH_MODULE_DEFINITION(mod_hash, mod_hash_load, mod_hash_shutdown, NULL)static const char modname[] = "mod_hash" ; __attribute__((visibility ("default"))) switch_loadable_module_function_table_t mod_hash_module_interface = { 5, mod_hash_load, mod_hash_shutdown, ((void*)0), SMODF_NONE }; |
| 44 | |
| 45 | /* CORE STUFF */ |
| 46 | static struct { |
| 47 | switch_memory_pool_t *pool; |
| 48 | switch_thread_rwlock_t *limit_hash_rwlock; |
| 49 | switch_hash_t *limit_hash; |
| 50 | switch_thread_rwlock_t *db_hash_rwlock; |
| 51 | switch_hash_t *db_hash; |
| 52 | switch_thread_rwlock_t *remote_hash_rwlock; |
| 53 | switch_hash_t *remote_hash; |
| 54 | } globals; |
| 55 | |
| 56 | typedef struct { |
| 57 | uint32_t total_usage; /* < Total */ |
| 58 | uint32_t rate_usage; /* < Current rate usage */ |
| 59 | time_t last_check; /* < Last rate check */ |
| 60 | uint32_t interval; /* < Interval used on last rate check */ |
| 61 | switch_time_t last_update; /* < Last updated timestamp (rate or total) */ |
| 62 | } limit_hash_item_t; |
| 63 | |
| 64 | struct callback { |
| 65 | char *buf; |
| 66 | size_t len; |
| 67 | int matches; |
| 68 | }; |
| 69 | |
| 70 | typedef struct callback callback_t; |
| 71 | |
| 72 | /* HASH STUFF */ |
| 73 | typedef struct { |
| 74 | switch_hash_t *hash; |
| 75 | } limit_hash_private_t; |
| 76 | |
| 77 | typedef enum { |
| 78 | REMOTE_OFF = 0, /* < Thread not running */ |
| 79 | REMOTE_DOWN, /* <C annot connect to remote instance */ |
| 80 | REMOTE_UP /* < All good */ |
| 81 | } limit_remote_state_t; |
| 82 | |
| 83 | static inline const char *state_str(limit_remote_state_t state) { |
| 84 | switch (state) { |
| 85 | case REMOTE_OFF: |
| 86 | return "Off"; |
| 87 | case REMOTE_DOWN: |
| 88 | return "Down"; |
| 89 | case REMOTE_UP: |
| 90 | return "Up"; |
| 91 | } |
| 92 | return ""; |
| 93 | } |
| 94 | |
| 95 | typedef struct { |
| 96 | const char *name; |
| 97 | const char *host; |
| 98 | const char *username; |
| 99 | const char *password; |
| 100 | int port; |
| 101 | |
| 102 | int interval; |
| 103 | |
| 104 | esl_handle_t handle; |
| 105 | |
| 106 | switch_hash_t *index; |
| 107 | switch_thread_rwlock_t *rwlock; |
| 108 | switch_memory_pool_t *pool; |
| 109 | |
| 110 | switch_bool_t running; |
| 111 | switch_thread_t *thread; |
| 112 | |
| 113 | limit_remote_state_t state; |
| 114 | } limit_remote_t; |
| 115 | |
| 116 | static limit_hash_item_t get_remote_usage(const char *key); |
| 117 | void limit_remote_destroy(limit_remote_t **r); |
| 118 | static void do_config(switch_bool_t reload); |
| 119 | |
| 120 | |
| 121 | /* \brief Enforces limit_hash restrictions |
| 122 | * \param session current session |
| 123 | * \param realm limit realm |
| 124 | * \param id limit id |
| 125 | * \param max maximum count |
| 126 | * \param interval interval for rate limiting |
| 127 | * \return SWITCH_TRUE if the access is allowed, SWITCH_FALSE if it isnt |
| 128 | */ |
| 129 | SWITCH_LIMIT_INCR(limit_incr_hash)static switch_status_t limit_incr_hash (switch_core_session_t *session, const char *realm, const char *resource, const int max, const int interval) |
| 130 | { |
| 131 | switch_channel_t *channel = switch_core_session_get_channel(session); |
| 132 | char *hashkey = NULL((void*)0); |
| 133 | switch_status_t status = SWITCH_STATUS_SUCCESS; |
| 134 | limit_hash_item_t *item = NULL((void*)0); |
| 135 | time_t now = switch_epoch_time_now(NULL((void*)0)); |
| 136 | limit_hash_private_t *pvt = NULL((void*)0); |
| 137 | uint8_t increment = 1; |
| 138 | limit_hash_item_t remote_usage; |
| 139 | |
| 140 | hashkey = switch_core_session_sprintf(session, "%s_%s", realm, resource); |
| 141 | |
| 142 | switch_thread_rwlock_wrlock(globals.limit_hash_rwlock); |
| 143 | /* Check if that realm+resource has ever been checked */ |
| 144 | if (!(item = (limit_hash_item_t *) switch_core_hash_find(globals.limit_hash, hashkey))) { |
| 145 | /* No, create an empty structure and add it, then continue like as if it existed */ |
| 146 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 146, (const char*)switch_core_session_type_check(session), SWITCH_LOG_DEBUG10, "Creating new limit structure: key: %s\n", hashkey); |
| 147 | item = (limit_hash_item_t *)switch_core_hash_insert_alloc(globals.limit_hash, hashkey, sizeof(limit_hash_item_t))switch_core_hash_insert_alloc_destructor(globals.limit_hash, hashkey , sizeof(limit_hash_item_t), ((void*)0)); |
| 148 | } |
| 149 | |
| 150 | if (!(pvt = switch_channel_get_private(channel, "limit_hash"))) { |
| 151 | pvt = (limit_hash_private_t *) switch_core_session_alloc(session, sizeof(limit_hash_private_t))switch_core_perform_session_alloc(session, sizeof(limit_hash_private_t ), "mod_hash.c", (const char *)__func__, 151); |
| 152 | memset(pvt, 0, sizeof(limit_hash_private_t)); |
| 153 | switch_channel_set_private(channel, "limit_hash", pvt); |
| 154 | } |
| 155 | if (!(pvt->hash)) { |
| 156 | switch_core_hash_init(&pvt->hash)switch_core_hash_init_case(&pvt->hash, SWITCH_TRUE); |
| 157 | } |
| 158 | increment = !switch_core_hash_find(pvt->hash, hashkey); |
| 159 | remote_usage = get_remote_usage(hashkey); |
| 160 | |
| 161 | if (interval > 0) { |
| 162 | item->interval = interval; |
| 163 | if (item->last_check <= (now - interval)) { |
| 164 | item->rate_usage = 1; |
| 165 | item->last_check = now; |
| 166 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 166, (const char*)switch_core_session_type_check(session), SWITCH_LOG_DEBUG10, "Usage for %s reset to 1\n", |
| 167 | hashkey); |
| 168 | } else { |
| 169 | /* Always increment rate when its checked as it doesnt depend on the channel */ |
| 170 | item->rate_usage++; |
| 171 | |
| 172 | if ((max >= 0) && (item->rate_usage > (uint32_t) max)) { |
| 173 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 173, (const char*)switch_core_session_type_check(session), SWITCH_LOG_INFO, "Usage for %s exceeds maximum rate of %d/%ds, now at %d\n", |
| 174 | hashkey, max, interval, item->rate_usage); |
| 175 | status = SWITCH_STATUS_GENERR; |
| 176 | goto end; |
| 177 | } |
| 178 | } |
| 179 | } else if ((max >= 0) && (item->total_usage + increment + remote_usage.total_usage > (uint32_t) max)) { |
| 180 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 180, (const char*)switch_core_session_type_check(session), SWITCH_LOG_INFO, "Usage for %s is already at max value (%d)\n", hashkey, item->total_usage); |
| 181 | status = SWITCH_STATUS_GENERR; |
| 182 | goto end; |
| 183 | } |
| 184 | |
| 185 | if (increment) { |
| 186 | item->total_usage++; |
| 187 | |
| 188 | switch_core_hash_insert(pvt->hash, hashkey, item)switch_core_hash_insert_destructor(pvt->hash, hashkey, item , ((void*)0)); |
| 189 | |
| 190 | if (max == -1) { |
| 191 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 191, (const char*)switch_core_session_type_check(session), SWITCH_LOG_DEBUG, "Usage for %s is now %d\n", hashkey, item->total_usage + remote_usage.total_usage); |
| 192 | } else if (interval == 0) { |
| 193 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 193, (const char*)switch_core_session_type_check(session), SWITCH_LOG_DEBUG, "Usage for %s is now %d/%d\n", hashkey, item->total_usage + remote_usage.total_usage, max); |
| 194 | } else { |
| 195 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 195, (const char*)switch_core_session_type_check(session), SWITCH_LOG_DEBUG, "Usage for %s is now %d/%d for the last %d seconds\n", hashkey, |
| 196 | item->rate_usage, max, interval); |
| 197 | } |
| 198 | |
| 199 | switch_limit_fire_event("hash", realm, resource, item->total_usage, item->rate_usage, max, max >= 0 ? (uint32_t) max : 0); |
| 200 | } |
| 201 | |
| 202 | /* Save current usage & rate into channel variables so it can be used later in the dialplan, or added to CDR records */ |
| 203 | { |
| 204 | const char *susage = switch_core_session_sprintf(session, "%d", item->total_usage); |
| 205 | const char *srate = switch_core_session_sprintf(session, "%d", item->rate_usage); |
| 206 | |
| 207 | switch_channel_set_variable(channel, "limit_usage", susage)switch_channel_set_variable_var_check(channel, "limit_usage", susage, SWITCH_TRUE); |
| 208 | switch_channel_set_variable(channel, switch_core_session_sprintf(session, "limit_usage_%s", hashkey), susage)switch_channel_set_variable_var_check(channel, switch_core_session_sprintf (session, "limit_usage_%s", hashkey), susage, SWITCH_TRUE); |
| 209 | |
| 210 | switch_channel_set_variable(channel, "limit_rate", srate)switch_channel_set_variable_var_check(channel, "limit_rate", srate , SWITCH_TRUE); |
| 211 | switch_channel_set_variable(channel, switch_core_session_sprintf(session, "limit_rate_%s", hashkey), srate)switch_channel_set_variable_var_check(channel, switch_core_session_sprintf (session, "limit_rate_%s", hashkey), srate, SWITCH_TRUE); |
| 212 | } |
| 213 | |
| 214 | end: |
| 215 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 216 | return status; |
| 217 | } |
| 218 | |
| 219 | /* !\brief Determines whether a given entry is ready to be removed. */ |
| 220 | SWITCH_HASH_DELETE_FUNC(limit_hash_cleanup_delete_callback)static switch_bool_t limit_hash_cleanup_delete_callback (const void *key, const void *val, void *pData) { |
| 221 | limit_hash_item_t *item = (limit_hash_item_t *) val; |
| 222 | time_t now = switch_epoch_time_now(NULL((void*)0)); |
| 223 | |
| 224 | /* reset to 0 if window has passed so we can clean it up */ |
| 225 | if (item->rate_usage > 0 && (item->last_check <= (now - item->interval))) { |
| 226 | item->rate_usage = 0; |
| 227 | } |
| 228 | |
| 229 | if (item->total_usage == 0 && item->rate_usage == 0) { |
| 230 | /* Noone is using this item anymore */ |
| 231 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "mod_hash.c", (const char *)__func__, 231 , ((void*)0), SWITCH_LOG_DEBUG, "Freeing limit item: %s\n", (const char *) key); |
| 232 | |
| 233 | free(item); |
| 234 | return SWITCH_TRUE; |
| 235 | } |
| 236 | |
| 237 | return SWITCH_FALSE; |
| 238 | } |
| 239 | |
| 240 | SWITCH_HASH_DELETE_FUNC(limit_hash_remote_cleanup_callback)static switch_bool_t limit_hash_remote_cleanup_callback (const void *key, const void *val, void *pData) |
| 241 | { |
| 242 | limit_hash_item_t *item = (limit_hash_item_t *) val; |
| 243 | switch_time_t now = (switch_time_t)(intptr_t)pData; |
| 244 | |
| 245 | if (item->last_update != now) { |
| 246 | return SWITCH_TRUE; |
| 247 | } |
| 248 | |
| 249 | return SWITCH_FALSE; |
| 250 | } |
| 251 | |
| 252 | /* !\brief Periodically checks for unused limit entries and frees them */ |
| 253 | SWITCH_STANDARD_SCHED_FUNC(limit_hash_cleanup_callback)static void limit_hash_cleanup_callback (switch_scheduler_task_t *task) |
| 254 | { |
| 255 | switch_thread_rwlock_wrlock(globals.limit_hash_rwlock); |
| 256 | if (globals.limit_hash) { |
| 257 | switch_core_hash_delete_multi(globals.limit_hash, limit_hash_cleanup_delete_callback, NULL((void*)0)); |
| 258 | } |
| 259 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 260 | |
| 261 | if (globals.limit_hash) { |
| 262 | task->runtime = switch_epoch_time_now(NULL((void*)0)) + LIMIT_HASH_CLEANUP_INTERVAL900; |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | /* !\brief Releases usage of a limit_hash-controlled resource */ |
| 267 | SWITCH_LIMIT_RELEASE(limit_release_hash)static switch_status_t limit_release_hash (switch_core_session_t *session, const char *realm, const char *resource) |
| 268 | { |
| 269 | switch_channel_t *channel = switch_core_session_get_channel(session); |
| 270 | limit_hash_private_t *pvt = switch_channel_get_private(channel, "limit_hash"); |
| 271 | limit_hash_item_t *item = NULL((void*)0); |
| 272 | |
| 273 | switch_thread_rwlock_wrlock(globals.limit_hash_rwlock); |
| 274 | |
| 275 | if (!pvt || !pvt->hash) { |
| 276 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 277 | return SWITCH_STATUS_SUCCESS; |
| 278 | } |
| 279 | |
| 280 | /* clear for uuid */ |
| 281 | if (realm == NULL((void*)0) && resource == NULL((void*)0)) { |
| 282 | switch_hash_index_t *hi = NULL((void*)0); |
| 283 | /* Loop through the channel's hashtable which contains mapping to all the limit_hash_item_t referenced by that channel */ |
| 284 | while ((hi = switch_core_hash_first_iter(pvt->hash, hi))) { |
| 285 | void *val = NULL((void*)0); |
| 286 | const void *key; |
| 287 | switch_ssize_t keylen; |
| 288 | |
| 289 | switch_core_hash_this(hi, &key, &keylen, &val); |
| 290 | |
| 291 | item = (limit_hash_item_t *) val; |
| 292 | item->total_usage--; |
| 293 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 293, (const char*)switch_core_session_type_check(session), SWITCH_LOG_DEBUG, "Usage for %s is now %d\n", (const char *) key, item->total_usage); |
| 294 | |
| 295 | if (item->total_usage == 0 && item->rate_usage == 0) { |
| 296 | /* Noone is using this item anymore */ |
| 297 | switch_core_hash_delete(globals.limit_hash, (const char *) key); |
| 298 | free(item); |
| 299 | } |
| 300 | |
| 301 | switch_core_hash_delete(pvt->hash, (const char *) key); |
| 302 | } |
| 303 | switch_core_hash_destroy(&pvt->hash); |
| 304 | } else { |
| 305 | char *hashkey = switch_core_session_sprintf(session, "%s_%s", realm, resource); |
| 306 | |
| 307 | if ((item = (limit_hash_item_t *) switch_core_hash_find(pvt->hash, hashkey))) { |
| 308 | item->total_usage--; |
| 309 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 309, (const char*)switch_core_session_type_check(session), SWITCH_LOG_DEBUG, "Usage for %s is now %d\n", (const char *) hashkey, item->total_usage); |
| 310 | |
| 311 | switch_core_hash_delete(pvt->hash, hashkey); |
| 312 | |
| 313 | if (item->total_usage == 0 && item->rate_usage == 0) { |
| 314 | /* Noone is using this item anymore */ |
| 315 | switch_core_hash_delete(globals.limit_hash, (const char *) hashkey); |
| 316 | free(item); |
| 317 | } |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 322 | |
| 323 | return SWITCH_STATUS_SUCCESS; |
| 324 | } |
| 325 | |
| 326 | SWITCH_LIMIT_USAGE(limit_usage_hash)static int limit_usage_hash (const char *realm, const char *resource , uint32_t *rcount) |
| 327 | { |
| 328 | char *hash_key = NULL((void*)0); |
| 329 | limit_hash_item_t *item = NULL((void*)0); |
| 330 | int count = 0; |
| 331 | limit_hash_item_t remote_usage; |
| 332 | |
| 333 | switch_thread_rwlock_rdlock(globals.limit_hash_rwlock); |
| 334 | |
| 335 | hash_key = switch_mprintf("%s_%s", realm, resource); |
| 336 | remote_usage = get_remote_usage(hash_key); |
| 337 | |
| 338 | count = remote_usage.total_usage; |
| 339 | *rcount = remote_usage.rate_usage; |
| 340 | |
| 341 | if ((item = switch_core_hash_find(globals.limit_hash, hash_key))) { |
| 342 | count += item->total_usage; |
| 343 | *rcount += item->rate_usage; |
| 344 | } |
| 345 | |
| 346 | switch_safe_free(hash_key)if (hash_key) {free(hash_key);hash_key=((void*)0);}; |
| 347 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 348 | |
| 349 | return count; |
| 350 | } |
| 351 | |
| 352 | SWITCH_LIMIT_RESET(limit_reset_hash)static switch_status_t limit_reset_hash (void) |
| 353 | { |
| 354 | return SWITCH_STATUS_GENERR; |
| 355 | } |
| 356 | |
| 357 | SWITCH_LIMIT_INTERVAL_RESET(limit_interval_reset_hash)static switch_status_t limit_interval_reset_hash (const char * realm, const char *resource) |
| 358 | { |
| 359 | char *hash_key = NULL((void*)0); |
| 360 | limit_hash_item_t *item = NULL((void*)0); |
| 361 | |
| 362 | switch_thread_rwlock_rdlock(globals.limit_hash_rwlock); |
| 363 | |
| 364 | hash_key = switch_mprintf("%s_%s", realm, resource); |
| 365 | if ((item = switch_core_hash_find(globals.limit_hash, hash_key))) { |
| 366 | item->rate_usage = 0; |
| 367 | item->last_check = switch_epoch_time_now(NULL((void*)0)); |
| 368 | } |
| 369 | |
| 370 | switch_safe_free(hash_key)if (hash_key) {free(hash_key);hash_key=((void*)0);}; |
| 371 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 372 | return SWITCH_STATUS_SUCCESS; |
| 373 | } |
| 374 | |
| 375 | SWITCH_LIMIT_STATUS(limit_status_hash)static char * limit_status_hash (void) |
| 376 | { |
| 377 | /* |
| 378 | switch_hash_index_t *hi = NULL; |
| 379 | int count = 0; |
| 380 | char *ret = NULL; |
| 381 | |
| 382 | switch_thread_rwlock_rdlock(globals.limit_hash_rwlock); |
| 383 | |
| 384 | for (hi = switch_core_hash_first(globals.limit_hash); hi; switch_core_hash_next(hi)) { |
| 385 | count++; |
| 386 | } |
| 387 | |
| 388 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 389 | |
| 390 | ret = switch_mprintf("There are %d elements being tracked.", count); |
| 391 | return ret; |
| 392 | */ |
| 393 | return strdup("-ERR not supported yet (locking problems)."); |
| 394 | } |
| 395 | |
| 396 | /* APP/API STUFF */ |
| 397 | |
| 398 | /* CORE HASH STUFF */ |
| 399 | |
| 400 | #define HASH_USAGE"[insert|insert_ifempty|delete|delete_ifmatch]/<realm>/<key>/<val>" "[insert|insert_ifempty|delete|delete_ifmatch]/<realm>/<key>/<val>" |
| 401 | #define HASH_DESC"save data" "save data" |
| 402 | |
| 403 | SWITCH_STANDARD_APP(hash_function)static void hash_function (switch_core_session_t *session, const char *data) |
| 404 | { |
| 405 | int argc = 0; |
| 406 | char *argv[4] = { 0 }; |
| 407 | char *mydata = NULL((void*)0); |
| 408 | char *hash_key = NULL((void*)0); |
| 409 | char *value = NULL((void*)0); |
| 410 | |
| 411 | switch_thread_rwlock_wrlock(globals.db_hash_rwlock); |
| 412 | |
| 413 | if (!zstr(data)_zstr(data)) { |
| 414 | mydata = strdup(data); |
| 415 | switch_assert(mydata)((mydata) ? (void) (0) : __assert_fail ("mydata", "mod_hash.c" , 415, __extension__ __PRETTY_FUNCTION__)); |
| 416 | argc = switch_separate_string(mydata, '/', argv, (sizeof(argv) / sizeof(argv[0]))); |
| 417 | } |
| 418 | |
| 419 | if (argc < 3 || !argv[0]) { |
| 420 | goto usage; |
| 421 | } |
| 422 | |
| 423 | hash_key = switch_mprintf("%s_%s", argv[1], argv[2]); |
| 424 | |
| 425 | if (!strcasecmp(argv[0], "insert")) { |
| 426 | if (argc < 4) { |
| 427 | goto usage; |
| 428 | } |
| 429 | if ((value = switch_core_hash_find(globals.db_hash, hash_key))) { |
| 430 | free(value); |
| 431 | switch_core_hash_delete(globals.db_hash, hash_key); |
| 432 | } |
| 433 | switch_core_hash_insert_dup(globals.db_hash, hash_key, argv[3])switch_core_hash_insert_dup_destructor(globals.db_hash, hash_key , argv[3], ((void*)0)); |
| 434 | } else if (!strcasecmp(argv[0], "insert_ifempty")) { |
| 435 | if (argc < 4) { |
| 436 | goto usage; |
| 437 | } |
| 438 | if (!switch_core_hash_find(globals.db_hash, hash_key)) { |
| 439 | switch_core_hash_insert_dup(globals.db_hash, hash_key, argv[3])switch_core_hash_insert_dup_destructor(globals.db_hash, hash_key , argv[3], ((void*)0)); |
| 440 | } |
| 441 | |
| 442 | } else if (!strcasecmp(argv[0], "delete")) { |
| 443 | if ((value = switch_core_hash_find(globals.db_hash, hash_key))) { |
| 444 | switch_safe_free(value)if (value) {free(value);value=((void*)0);}; |
| 445 | switch_core_hash_delete(globals.db_hash, hash_key); |
| 446 | } |
| 447 | } else if (!strcasecmp(argv[0], "delete_ifmatch")) { |
| 448 | if (argc < 4) { |
| 449 | goto usage; |
| 450 | } |
| 451 | if ((value = switch_core_hash_find(globals.db_hash, hash_key))) { |
| 452 | if(!strcmp(argv[3], value)) { |
| 453 | switch_safe_free(value)if (value) {free(value);value=((void*)0);}; |
| 454 | switch_core_hash_delete(globals.db_hash, hash_key); |
| 455 | } |
| 456 | } |
| 457 | } else { |
| 458 | goto usage; |
| 459 | } |
| 460 | |
| 461 | goto done; |
| 462 | |
| 463 | usage: |
| 464 | switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session)SWITCH_CHANNEL_ID_SESSION, "mod_hash.c", (const char *)__func__ , 464, (const char*)switch_core_session_type_check(session), SWITCH_LOG_WARNING, "USAGE: hash %s\n", HASH_USAGE"[insert|insert_ifempty|delete|delete_ifmatch]/<realm>/<key>/<val>"); |
| 465 | |
| 466 | done: |
| 467 | switch_thread_rwlock_unlock(globals.db_hash_rwlock); |
| 468 | switch_safe_free(mydata)if (mydata) {free(mydata);mydata=((void*)0);}; |
| 469 | switch_safe_free(hash_key)if (hash_key) {free(hash_key);hash_key=((void*)0);}; |
| 470 | } |
| 471 | |
| 472 | #define HASH_API_USAGE"insert|insert_ifempty|select|delete|delete_ifmatch|select_limit|delete_limit/realm/key[/value]" "insert|insert_ifempty|select|delete|delete_ifmatch|select_limit|delete_limit/realm/key[/value]" |
| 473 | SWITCH_STANDARD_API(hash_api_function)static switch_status_t hash_api_function ( const char *cmd, switch_core_session_t *session, switch_stream_handle_t *stream) |
| 474 | { |
| 475 | int argc = 0; |
| 476 | char *argv[4] = { 0 }; |
| 477 | char *mydata = NULL((void*)0); |
| 478 | char *value = NULL((void*)0); |
| 479 | char *hash_key = NULL((void*)0); |
| 480 | |
| 481 | if (!zstr(cmd)_zstr(cmd)) { |
| 482 | mydata = strdup(cmd); |
| 483 | switch_assert(mydata)((mydata) ? (void) (0) : __assert_fail ("mydata", "mod_hash.c" , 483, __extension__ __PRETTY_FUNCTION__)); |
| 484 | argc = switch_separate_string(mydata, '/', argv, (sizeof(argv) / sizeof(argv[0]))); |
| 485 | } |
| 486 | |
| 487 | if (argc < 3 || !argv[0]) { |
| 488 | goto usage; |
| 489 | } |
| 490 | |
| 491 | hash_key = switch_mprintf("%s_%s", argv[1], argv[2]); |
| 492 | |
| 493 | if (!strcasecmp(argv[0], "insert")) { |
| 494 | if (argc < 4) { |
| 495 | goto usage; |
| 496 | } |
| 497 | switch_thread_rwlock_wrlock(globals.db_hash_rwlock); |
| 498 | if ((value = switch_core_hash_find(globals.db_hash, hash_key))) { |
| 499 | switch_safe_free(value)if (value) {free(value);value=((void*)0);}; |
| 500 | switch_core_hash_delete(globals.db_hash, hash_key); |
| 501 | } |
| 502 | switch_core_hash_insert_dup(globals.db_hash, hash_key, argv[3])switch_core_hash_insert_dup_destructor(globals.db_hash, hash_key , argv[3], ((void*)0)); |
| 503 | stream->write_function(stream, "+OK\n"); |
| 504 | switch_thread_rwlock_unlock(globals.db_hash_rwlock); |
| 505 | } else if (!strcasecmp(argv[0], "insert_ifempty")) { |
| 506 | if (argc < 4) { |
| 507 | goto usage; |
| 508 | } |
| 509 | switch_thread_rwlock_wrlock(globals.db_hash_rwlock); |
| 510 | if (switch_core_hash_find(globals.db_hash, hash_key)) { |
| 511 | stream->write_function(stream, "-ERR key already exists\n"); |
| 512 | } else { |
| 513 | switch_core_hash_insert_dup(globals.db_hash, hash_key, argv[3])switch_core_hash_insert_dup_destructor(globals.db_hash, hash_key , argv[3], ((void*)0)); |
| 514 | stream->write_function(stream, "+OK\n"); |
| 515 | } |
| 516 | switch_thread_rwlock_unlock(globals.db_hash_rwlock); |
| 517 | } else if (!strcasecmp(argv[0], "delete")) { |
| 518 | switch_thread_rwlock_wrlock(globals.db_hash_rwlock); |
| 519 | if ((value = switch_core_hash_find(globals.db_hash, hash_key))) { |
| 520 | switch_safe_free(value)if (value) {free(value);value=((void*)0);}; |
| 521 | switch_core_hash_delete(globals.db_hash, hash_key); |
| 522 | stream->write_function(stream, "+OK\n"); |
| 523 | } else { |
| 524 | stream->write_function(stream, "-ERR Not found\n"); |
| 525 | } |
| 526 | switch_thread_rwlock_unlock(globals.db_hash_rwlock); |
| 527 | } else if (!strcasecmp(argv[0], "delete_ifmatch")) { |
| 528 | if (argc < 4) { |
| 529 | goto usage; |
| 530 | } |
| 531 | switch_thread_rwlock_wrlock(globals.db_hash_rwlock); |
| 532 | if ((value = switch_core_hash_find(globals.db_hash, hash_key))) { |
| 533 | if(!strcmp(argv[3],value)) { |
| 534 | switch_safe_free(value)if (value) {free(value);value=((void*)0);}; |
| 535 | switch_core_hash_delete(globals.db_hash, hash_key); |
| 536 | stream->write_function(stream, "+OK\n"); |
| 537 | } else { |
| 538 | stream->write_function(stream, "-ERR Doesn't match\n"); |
| 539 | } |
| 540 | } else { |
| 541 | stream->write_function(stream, "-ERR Not found\n"); |
| 542 | } |
| 543 | switch_thread_rwlock_unlock(globals.db_hash_rwlock); |
| 544 | } else if (!strcasecmp(argv[0], "select")) { |
| 545 | switch_thread_rwlock_rdlock(globals.db_hash_rwlock); |
| 546 | if ((value = switch_core_hash_find(globals.db_hash, hash_key))) { |
| 547 | stream->write_function(stream, "%s", value); |
| 548 | } |
| 549 | switch_thread_rwlock_unlock(globals.db_hash_rwlock); |
| 550 | } else if (!strcasecmp(argv[0], "select_limit")) { |
| 551 | limit_hash_item_t *item = NULL((void*)0); |
| 552 | switch_thread_rwlock_rdlock(globals.limit_hash_rwlock); |
| 553 | if ((item = switch_core_hash_find(globals.limit_hash, hash_key))) { |
| 554 | stream->write_function(stream, "%d", item->total_usage); |
| 555 | } |
| 556 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 557 | } else if (!strcasecmp(argv[0], "delete_limit")) { |
| 558 | limit_hash_item_t *item = NULL((void*)0); |
| 559 | switch_thread_rwlock_rdlock(globals.limit_hash_rwlock); |
| 560 | if ((item = switch_core_hash_find(globals.limit_hash, hash_key))) { |
Although the value stored to 'item' is used in the enclosing expression, the value is never actually read from 'item' | |
| 561 | switch_core_hash_delete(globals.limit_hash, hash_key); |
| 562 | stream->write_function(stream, "+OK\n"); |
| 563 | } else { |
| 564 | stream->write_function(stream, "-ERR Not found\n"); |
| 565 | } |
| 566 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 567 | } else { |
| 568 | goto usage; |
| 569 | } |
| 570 | |
| 571 | goto done; |
| 572 | |
| 573 | usage: |
| 574 | stream->write_function(stream, "-ERR Usage: hash %s\n", HASH_API_USAGE"insert|insert_ifempty|select|delete|delete_ifmatch|select_limit|delete_limit/realm/key[/value]"); |
| 575 | |
| 576 | done: |
| 577 | |
| 578 | switch_safe_free(mydata)if (mydata) {free(mydata);mydata=((void*)0);}; |
| 579 | switch_safe_free(hash_key)if (hash_key) {free(hash_key);hash_key=((void*)0);}; |
| 580 | |
| 581 | return SWITCH_STATUS_SUCCESS; |
| 582 | } |
| 583 | |
| 584 | #define HASH_DUMP_SYNTAX"all|limit|db [<realm>]" "all|limit|db [<realm>]" |
| 585 | SWITCH_STANDARD_API(hash_dump_function)static switch_status_t hash_dump_function ( const char *cmd, switch_core_session_t *session, switch_stream_handle_t *stream) |
| 586 | { |
| 587 | int mode; |
| 588 | switch_hash_index_t *hi; |
| 589 | int argc = 0; |
| 590 | char *argv[4] = { 0 }; |
| 591 | char *mydata = NULL((void*)0); |
| 592 | int realm = 0; |
| 593 | char *realmvalue = NULL((void*)0); |
| 594 | |
| 595 | if (zstr(cmd)_zstr(cmd)) { |
| 596 | stream->write_function(stream, "Usage: "HASH_DUMP_SYNTAX"all|limit|db [<realm>]""\n"); |
| 597 | goto done; |
| 598 | } |
| 599 | |
| 600 | mydata = strdup(cmd); |
| 601 | switch_assert(mydata)((mydata) ? (void) (0) : __assert_fail ("mydata", "mod_hash.c" , 601, __extension__ __PRETTY_FUNCTION__)); |
| 602 | argc = switch_separate_string(mydata, ' ', argv, (sizeof(argv) / sizeof(argv[0]))); |
| 603 | cmd = argv[0]; |
| 604 | |
| 605 | if (argc == 2) { |
| 606 | realm = 1; |
| 607 | realmvalue = switch_mprintf("%s_", argv[1]); |
| 608 | } |
| 609 | |
| 610 | if (!strcmp(cmd, "all")) { |
| 611 | mode = 3; |
| 612 | } else if (!strcmp(cmd, "limit")) { |
| 613 | mode = 1; |
| 614 | } else if (!strcmp(cmd, "db")) { |
| 615 | mode = 2; |
| 616 | } else { |
| 617 | stream->write_function(stream, "Usage: "HASH_DUMP_SYNTAX"all|limit|db [<realm>]""\n"); |
| 618 | goto done; |
| 619 | } |
| 620 | |
| 621 | if (mode & 1) { |
| 622 | switch_thread_rwlock_rdlock(globals.limit_hash_rwlock); |
| 623 | for (hi = switch_core_hash_first(globals.limit_hash)switch_core_hash_first_iter(globals.limit_hash, ((void*)0)); hi; hi = switch_core_hash_next(&hi)) { |
| 624 | void *val = NULL((void*)0); |
| 625 | const void *key; |
| 626 | switch_ssize_t keylen; |
| 627 | limit_hash_item_t *item; |
| 628 | switch_core_hash_this(hi, &key, &keylen, &val); |
| 629 | |
| 630 | item = (limit_hash_item_t *)val; |
| 631 | |
| 632 | stream->write_function(stream, "L/%s/%d/%d/%d/%d\n", key, item->total_usage, item->rate_usage, item->interval, item->last_check); |
| 633 | } |
| 634 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 635 | } |
| 636 | |
| 637 | if (mode & 2) { |
| 638 | switch_thread_rwlock_rdlock(globals.db_hash_rwlock); |
| 639 | for (hi = switch_core_hash_first(globals.db_hash)switch_core_hash_first_iter(globals.db_hash, ((void*)0)); hi; hi = switch_core_hash_next(&hi)) { |
| 640 | void *val = NULL((void*)0); |
| 641 | const void *key; |
| 642 | switch_ssize_t keylen; |
| 643 | switch_core_hash_this(hi, &key, &keylen, &val); |
| 644 | if (realm) { |
| 645 | if (strstr(key, realmvalue)) { |
| 646 | stream->write_function(stream, "D/%s/%s\n", key, (char*)val); |
| 647 | } |
| 648 | } else { |
| 649 | stream->write_function(stream, "D/%s/%s\n", key, (char*)val); |
| 650 | } |
| 651 | } |
| 652 | switch_thread_rwlock_unlock(globals.db_hash_rwlock); |
| 653 | } |
| 654 | |
| 655 | done: |
| 656 | switch_safe_free(mydata)if (mydata) {free(mydata);mydata=((void*)0);}; |
| 657 | switch_safe_free(realmvalue)if (realmvalue) {free(realmvalue);realmvalue=((void*)0);}; |
| 658 | |
| 659 | return SWITCH_STATUS_SUCCESS; |
| 660 | } |
| 661 | |
| 662 | #define HASH_REMOTE_SYNTAX"list|kill [name]|rescan" "list|kill [name]|rescan" |
| 663 | SWITCH_STANDARD_API(hash_remote_function)static switch_status_t hash_remote_function ( const char *cmd , switch_core_session_t *session, switch_stream_handle_t *stream ) |
| 664 | { |
| 665 | //int argc; |
| 666 | char *argv[10]; |
| 667 | char *dup = NULL((void*)0); |
| 668 | |
| 669 | if (zstr(cmd)_zstr(cmd)) { |
| 670 | stream->write_function(stream, "-ERR Usage: "HASH_REMOTE_SYNTAX"list|kill [name]|rescan""\n"); |
| 671 | return SWITCH_STATUS_SUCCESS; |
| 672 | } |
| 673 | |
| 674 | dup = strdup(cmd); |
| 675 | |
| 676 | switch_split(dup, ' ', argv)switch_separate_string(dup, ' ', argv, (sizeof(argv) / sizeof (argv[0]))); |
| 677 | if (argv[0] && !strcmp(argv[0], "list")) { |
| 678 | switch_hash_index_t *hi; |
| 679 | stream->write_function(stream, "Remote connections:\nName\t\t\tState\n"); |
| 680 | |
| 681 | switch_thread_rwlock_rdlock(globals.remote_hash_rwlock); |
| 682 | for (hi = switch_core_hash_first(globals.remote_hash)switch_core_hash_first_iter(globals.remote_hash, ((void*)0)); hi; hi = switch_core_hash_next(&hi)) { |
| 683 | void *val; |
| 684 | const void *key; |
| 685 | switch_ssize_t keylen; |
| 686 | limit_remote_t *item; |
| 687 | switch_core_hash_this(hi, &key, &keylen, &val); |
| 688 | |
| 689 | item = (limit_remote_t *)val; |
| 690 | stream->write_function(stream, "%s\t\t\t%s\n", item->name, state_str(item->state)); |
| 691 | } |
| 692 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 693 | stream->write_function(stream, "+OK\n"); |
| 694 | |
| 695 | } else if (argv[0] && !strcmp(argv[0], "kill")) { |
| 696 | const char *name = argv[1]; |
| 697 | limit_remote_t *remote; |
| 698 | if (zstr(name)_zstr(name)) { |
| 699 | stream->write_function(stream, "-ERR Usage: "HASH_REMOTE_SYNTAX"list|kill [name]|rescan""\n"); |
| 700 | goto done; |
| 701 | } |
| 702 | switch_thread_rwlock_rdlock(globals.remote_hash_rwlock); |
| 703 | remote = switch_core_hash_find(globals.remote_hash, name); |
| 704 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 705 | |
| 706 | if (remote) { |
| 707 | limit_remote_destroy(&remote); |
| 708 | |
| 709 | switch_thread_rwlock_wrlock(globals.remote_hash_rwlock); |
| 710 | switch_core_hash_delete(globals.remote_hash, name); |
| 711 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 712 | |
| 713 | stream->write_function(stream, "+OK\n"); |
| 714 | } else { |
| 715 | stream->write_function(stream, "-ERR No such remote instance %s\n", name); |
| 716 | } |
| 717 | } else if (argv[0] && !strcmp(argv[0], "rescan")) { |
| 718 | do_config(SWITCH_TRUE); |
| 719 | stream->write_function(stream, "+OK\n"); |
| 720 | } else { |
| 721 | stream->write_function(stream, "-ERR Usage: "HASH_REMOTE_SYNTAX"list|kill [name]|rescan""\n"); |
| 722 | |
| 723 | } |
| 724 | |
| 725 | done: |
| 726 | |
| 727 | switch_safe_free(dup)if (dup) {free(dup);dup=((void*)0);}; |
| 728 | |
| 729 | return SWITCH_STATUS_SUCCESS; |
| 730 | } |
| 731 | |
| 732 | limit_remote_t *limit_remote_create(const char *name, const char *host, uint16_t port, const char *username, const char *password, int interval) |
| 733 | { |
| 734 | limit_remote_t *r; |
| 735 | switch_memory_pool_t *pool; |
| 736 | |
| 737 | switch_thread_rwlock_rdlock(globals.remote_hash_rwlock); |
| 738 | if (switch_core_hash_find(globals.remote_hash, name)) { |
| 739 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "mod_hash.c", (const char *)__func__, 739 , ((void*)0), SWITCH_LOG_ERROR, "Already have a remote instance named %s\n", name); |
| 740 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 741 | return NULL((void*)0); |
| 742 | } |
| 743 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 744 | |
| 745 | if (switch_core_new_memory_pool(&pool)switch_core_perform_new_memory_pool(&pool, "mod_hash.c", ( const char *)__func__, 745) != SWITCH_STATUS_SUCCESS) { |
| 746 | return NULL((void*)0); |
| 747 | } |
| 748 | |
| 749 | r = switch_core_alloc(pool, sizeof(limit_remote_t))switch_core_perform_alloc(pool, sizeof(limit_remote_t), "mod_hash.c" , (const char *)__func__, 749); |
| 750 | r->pool = pool; |
| 751 | r->name = switch_core_strdup(r->pool, name)switch_core_perform_strdup(r->pool, name, "mod_hash.c", (const char *)__func__, 751); |
| 752 | r->host = switch_core_strdup(r->pool, host)switch_core_perform_strdup(r->pool, host, "mod_hash.c", (const char *)__func__, 752); |
| 753 | r->port = port; |
| 754 | r->username = switch_core_strdup(r->pool, username)switch_core_perform_strdup(r->pool, username, "mod_hash.c" , (const char *)__func__, 754); |
| 755 | r->password = switch_core_strdup(r->pool, password)switch_core_perform_strdup(r->pool, password, "mod_hash.c" , (const char *)__func__, 755); |
| 756 | r->interval = interval; |
| 757 | |
| 758 | switch_thread_rwlock_create(&r->rwlock, pool); |
| 759 | switch_core_hash_init(&r->index)switch_core_hash_init_case(&r->index, SWITCH_TRUE); |
| 760 | |
| 761 | switch_thread_rwlock_rdlock(globals.remote_hash_rwlock); |
| 762 | switch_core_hash_insert(globals.remote_hash, name, r)switch_core_hash_insert_destructor(globals.remote_hash, name, r, ((void*)0)); |
| 763 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 764 | |
| 765 | return r; |
| 766 | } |
| 767 | |
| 768 | void limit_remote_destroy(limit_remote_t **r) |
| 769 | { |
| 770 | if (r && *r) { |
| 771 | (*r)->state = REMOTE_OFF; |
| 772 | |
| 773 | if ((*r)->thread) { |
| 774 | switch_status_t retval; |
| 775 | switch_thread_join(&retval, (*r)->thread); |
| 776 | } |
| 777 | |
| 778 | switch_thread_rwlock_wrlock((*r)->rwlock); |
| 779 | |
| 780 | /* Free hashtable data */ |
| 781 | switch_core_hash_destroy(&(*r)->index); |
| 782 | |
| 783 | switch_thread_rwlock_unlock((*r)->rwlock); |
| 784 | switch_thread_rwlock_destroy((*r)->rwlock); |
| 785 | |
| 786 | switch_core_destroy_memory_pool(&((*r)->pool))switch_core_perform_destroy_memory_pool(&((*r)->pool), "mod_hash.c", (const char *)__func__, 786); |
| 787 | *r = NULL((void*)0); |
| 788 | } |
| 789 | } |
| 790 | |
| 791 | /* Compute the usage sum of a resource on remote boxes */ |
| 792 | static limit_hash_item_t get_remote_usage(const char *key) { |
| 793 | limit_hash_item_t usage = { 0 }; |
| 794 | switch_hash_index_t *hi; |
| 795 | |
| 796 | switch_thread_rwlock_rdlock(globals.remote_hash_rwlock); |
| 797 | for (hi = switch_core_hash_first(globals.remote_hash)switch_core_hash_first_iter(globals.remote_hash, ((void*)0)); hi; hi = switch_core_hash_next(&hi)) { |
| 798 | void *val; |
| 799 | const void *hashkey; |
| 800 | switch_ssize_t keylen; |
| 801 | limit_remote_t *remote; |
| 802 | limit_hash_item_t *item; |
| 803 | switch_core_hash_this(hi, &hashkey, &keylen, &val); |
| 804 | |
| 805 | remote = (limit_remote_t *)val; |
| 806 | if (remote->state != REMOTE_UP) { |
| 807 | continue; |
| 808 | } |
| 809 | |
| 810 | switch_thread_rwlock_rdlock(remote->rwlock); |
| 811 | if ((item = switch_core_hash_find(remote->index, key))) { |
| 812 | usage.total_usage += item->total_usage; |
| 813 | usage.rate_usage += item->rate_usage; |
| 814 | if (!usage.last_check) { |
| 815 | usage.last_check = item->last_check; |
| 816 | } |
| 817 | } |
| 818 | switch_thread_rwlock_unlock(remote->rwlock); |
| 819 | } |
| 820 | |
| 821 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 822 | |
| 823 | return usage; |
| 824 | } |
| 825 | |
| 826 | static void *SWITCH_THREAD_FUNC limit_remote_thread(switch_thread_t *thread, void *obj) |
| 827 | { |
| 828 | limit_remote_t *remote = (limit_remote_t*)obj; |
| 829 | while (remote->state > REMOTE_OFF) { |
| 830 | if (remote->state != REMOTE_UP) { |
| 831 | if (esl_connect_timeout(&remote->handle, remote->host, (esl_port_t)remote->port, remote->username, remote->password, 5000) == ESL_SUCCESS) { |
| 832 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "mod_hash.c", (const char *)__func__, 832 , ((void*)0), SWITCH_LOG_INFO, "Connected to remote FreeSWITCH (%s) at %s:%d\n", |
| 833 | remote->name, remote->host, remote->port); |
| 834 | |
| 835 | remote->state = REMOTE_UP; |
| 836 | } else { |
| 837 | esl_disconnect(&remote->handle); |
| 838 | memset(&remote->handle, 0, sizeof(remote->handle)); |
| 839 | } |
| 840 | } else { |
| 841 | if (esl_send_recv_timed(&remote->handle, "api hash_dump limit", 5000) != ESL_SUCCESS) { |
| 842 | esl_disconnect(&remote->handle); |
| 843 | memset(&remote->handle, 0, sizeof(remote->handle)); |
| 844 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "mod_hash.c", (const char *)__func__, 844 , ((void*)0), SWITCH_LOG_WARNING, "Disconnected from remote FreeSWITCH (%s) at %s:%d\n", |
| 845 | remote->name, remote->host, remote->port); |
| 846 | memset(&remote->handle, 0, sizeof(remote->handle)); |
| 847 | remote->state = REMOTE_DOWN; |
| 848 | /* Delete all remote tracking entries */ |
| 849 | switch_thread_rwlock_wrlock(remote->rwlock); |
| 850 | switch_core_hash_delete_multi(remote->index, limit_hash_remote_cleanup_callback, NULL((void*)0)); |
| 851 | switch_thread_rwlock_unlock(remote->rwlock); |
| 852 | } else { |
| 853 | if (!zstr(remote->handle.last_sr_event->body)_zstr(remote->handle.last_sr_event->body)) { |
| 854 | char *data = strdup(remote->handle.last_sr_event->body); |
| 855 | char *p = data, *p2; |
| 856 | switch_time_t now = switch_epoch_time_now(NULL((void*)0)); |
| 857 | while (p && *p) { |
| 858 | /* We are getting the limit data as: |
| 859 | L/key/usage/rate/interval/last_checked |
| 860 | */ |
| 861 | if ((p2 = strchr(p, '\n'))) { |
| 862 | *p2++ = '\0'; |
| 863 | } |
| 864 | |
| 865 | /* Now p points at the beginning of the current line, |
| 866 | p2 at the start of the next one */ |
| 867 | if (*p == 'L') { /* Limit data */ |
| 868 | char *argv[5]; |
| 869 | int argc = switch_split(p+2, '/', argv)switch_separate_string(p+2, '/', argv, (sizeof(argv) / sizeof (argv[0]))); |
| 870 | |
| 871 | if (argc < 5) { |
| 872 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "mod_hash.c", (const char *)__func__, 872 , ((void*)0), SWITCH_LOG_WARNING, "[%s] Protocol error: missing argument in line: %s\n", |
| 873 | remote->name, p); |
| 874 | } else { |
| 875 | limit_hash_item_t *item; |
| 876 | switch_thread_rwlock_wrlock(remote->rwlock); |
| 877 | if (!(item = switch_core_hash_find(remote->index, argv[0]))) { |
| 878 | switch_zmalloc(item, sizeof(*item))(void)((((item = switch_calloc(1, (sizeof(*item))))) ? (void) (0) : __assert_fail ("(item = switch_calloc(1, (sizeof(*item))))" , "mod_hash.c", 878, __extension__ __PRETTY_FUNCTION__)),item ); |
| 879 | switch_core_hash_insert_auto_free(remote->index, argv[0], item); |
| 880 | } |
| 881 | item->total_usage = atoi(argv[1]); |
| 882 | item->rate_usage = atoi(argv[2]); |
| 883 | item->interval = atoi(argv[3]); |
| 884 | item->last_check = atoi(argv[4]); |
| 885 | item->last_update = now; |
| 886 | switch_thread_rwlock_unlock(remote->rwlock); |
| 887 | } |
| 888 | } |
| 889 | |
| 890 | p = p2; |
| 891 | } |
| 892 | free(data); |
| 893 | |
| 894 | /* Now free up anything that wasn't in this update since it means their usage is 0 */ |
| 895 | switch_thread_rwlock_wrlock(remote->rwlock); |
| 896 | switch_core_hash_delete_multi(remote->index, limit_hash_remote_cleanup_callback, (void*)(intptr_t)now); |
| 897 | switch_thread_rwlock_unlock(remote->rwlock); |
| 898 | } |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | switch_yield(remote->interval * 1000)switch_sleep(remote->interval * 1000);; |
| 903 | } |
| 904 | |
| 905 | remote->thread = NULL((void*)0); |
| 906 | |
| 907 | return NULL((void*)0); |
| 908 | } |
| 909 | |
| 910 | static void do_config(switch_bool_t reload) |
| 911 | { |
| 912 | switch_xml_t xml = NULL((void*)0), x_lists = NULL((void*)0), x_list = NULL((void*)0), cfg = NULL((void*)0); |
| 913 | if ((xml = switch_xml_open_cfg("hash.conf", &cfg, NULL((void*)0)))) { |
| 914 | if ((x_lists = switch_xml_child(cfg, "remotes"))) { |
| 915 | for (x_list = switch_xml_child(x_lists, "remote"); x_list; x_list = x_list->next) { |
| 916 | const char *name = switch_xml_attr(x_list, "name"); |
| 917 | const char *host = switch_xml_attr(x_list, "host"); |
| 918 | const char *szport = switch_xml_attr(x_list, "port"); |
| 919 | const char *username = switch_xml_attr(x_list, "username"); |
| 920 | const char *password = switch_xml_attr(x_list, "password"); |
| 921 | const char *szinterval = switch_xml_attr(x_list, "interval"); |
| 922 | uint16_t port = 0; |
| 923 | int interval = 0; |
| 924 | limit_remote_t *remote; |
| 925 | switch_threadattr_t *thd_attr = NULL((void*)0); |
| 926 | |
| 927 | if (reload) { |
| 928 | switch_thread_rwlock_rdlock(globals.remote_hash_rwlock); |
| 929 | if (switch_core_hash_find(globals.remote_hash, name)) { |
| 930 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 931 | continue; |
| 932 | } |
| 933 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 934 | } |
| 935 | |
| 936 | if (!zstr(szport)_zstr(szport)) { |
| 937 | port = (uint16_t)atoi(szport); |
| 938 | } |
| 939 | |
| 940 | if (!zstr(szinterval)_zstr(szinterval)) { |
| 941 | interval = atoi(szinterval); |
| 942 | } |
| 943 | |
| 944 | remote = limit_remote_create(name, host, port, username, password, interval); |
| 945 | |
| 946 | remote->state = REMOTE_DOWN; |
| 947 | |
| 948 | switch_threadattr_create(&thd_attr, remote->pool); |
| 949 | switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE240 * 1024); |
| 950 | switch_thread_create(&remote->thread, thd_attr, limit_remote_thread, remote, remote->pool); |
| 951 | } |
| 952 | } |
| 953 | switch_xml_free(xml); |
| 954 | } |
| 955 | } |
| 956 | |
| 957 | /* INIT/DEINIT STUFF */ |
| 958 | SWITCH_MODULE_LOAD_FUNCTION(mod_hash_load)switch_status_t mod_hash_load (switch_loadable_module_interface_t **module_interface, switch_memory_pool_t *pool) |
| 959 | { |
| 960 | switch_application_interface_t *app_interface; |
| 961 | switch_api_interface_t *commands_api_interface; |
| 962 | switch_limit_interface_t *limit_interface; |
| 963 | switch_status_t status; |
| 964 | |
| 965 | memset(&globals, 0, sizeof(globals)); |
| 966 | globals.pool = pool; |
| 967 | |
| 968 | status = switch_event_reserve_subclass(LIMIT_EVENT_USAGE)switch_event_reserve_subclass_detailed("mod_hash.c", "limit::usage" ); |
| 969 | if (status != SWITCH_STATUS_SUCCESS && status != SWITCH_STATUS_INUSE) { |
| 970 | switch_log_printf(SWITCH_CHANNEL_LOGSWITCH_CHANNEL_ID_LOG, "mod_hash.c", (const char *)__func__, 970 , ((void*)0), SWITCH_LOG_ERROR, "Couldn't register event subclass \"%s\" (%d)\n", LIMIT_EVENT_USAGE"limit::usage", status); |
| 971 | return SWITCH_STATUS_FALSE; |
| 972 | } |
| 973 | |
| 974 | switch_thread_rwlock_create(&globals.limit_hash_rwlock, globals.pool); |
| 975 | switch_thread_rwlock_create(&globals.db_hash_rwlock, globals.pool); |
| 976 | switch_thread_rwlock_create(&globals.remote_hash_rwlock, globals.pool); |
| 977 | switch_core_hash_init(&globals.limit_hash)switch_core_hash_init_case(&globals.limit_hash, SWITCH_TRUE ); |
| 978 | switch_core_hash_init(&globals.db_hash)switch_core_hash_init_case(&globals.db_hash, SWITCH_TRUE); |
| 979 | switch_core_hash_init(&globals.remote_hash)switch_core_hash_init_case(&globals.remote_hash, SWITCH_TRUE ); |
| 980 | |
| 981 | /* connect my internal structure to the blank pointer passed to me */ |
| 982 | *module_interface = switch_loadable_module_create_module_interface(pool, modname); |
| 983 | |
| 984 | /* register limit interfaces */ |
| 985 | SWITCH_ADD_LIMIT(limit_interface, "hash", limit_incr_hash, limit_release_hash, limit_usage_hash, limit_reset_hash, limit_status_hash, limit_interval_reset_hash)for (;;) { limit_interface = (switch_limit_interface_t *)switch_loadable_module_create_interface (*module_interface, SWITCH_LIMIT_INTERFACE); limit_interface-> incr = limit_incr_hash; limit_interface->release = limit_release_hash ; limit_interface->usage = limit_usage_hash; limit_interface ->reset = limit_reset_hash; limit_interface->interval_reset = limit_interval_reset_hash; limit_interface->status = limit_status_hash ; limit_interface->interface_name = "hash"; break; }; |
| 986 | |
| 987 | switch_scheduler_add_task(switch_epoch_time_now(NULL((void*)0)) + LIMIT_HASH_CLEANUP_INTERVAL900, limit_hash_cleanup_callback, "limit_hash_cleanup", "mod_hash", 0, NULL((void*)0), |
| 988 | SSHF_NONE); |
| 989 | |
| 990 | SWITCH_ADD_APP(app_interface, "hash", "Insert into the hashtable", HASH_DESC, hash_function, HASH_USAGE, SAF_SUPPORT_NOMEDIA | SAF_ZOMBIE_EXEC)for (;;) { app_interface = (switch_application_interface_t *) switch_loadable_module_create_interface(*module_interface, SWITCH_APPLICATION_INTERFACE ); app_interface->interface_name = "hash"; app_interface-> application_function = hash_function; app_interface->short_desc = "Insert into the hashtable"; app_interface->long_desc = "save data"; app_interface->syntax = "[insert|insert_ifempty|delete|delete_ifmatch]/<realm>/<key>/<val>" ; app_interface->flags = SAF_SUPPORT_NOMEDIA | SAF_ZOMBIE_EXEC ; break; } |
| 991 | SWITCH_ADD_API(commands_api_interface, "hash", "hash get/set", hash_api_function, "[insert|delete|select]/<realm>/<key>/<value>")for (;;) { commands_api_interface = (switch_api_interface_t * )switch_loadable_module_create_interface(*module_interface, SWITCH_API_INTERFACE ); commands_api_interface->interface_name = "hash"; commands_api_interface ->desc = "hash get/set"; commands_api_interface->function = hash_api_function; commands_api_interface->syntax = "[insert|delete|select]/<realm>/<key>/<value>" ; break; }; |
| 992 | SWITCH_ADD_API(commands_api_interface, "hash_dump", "dump hash/limit_hash data (used for synchronization)", hash_dump_function, HASH_DUMP_SYNTAX)for (;;) { commands_api_interface = (switch_api_interface_t * )switch_loadable_module_create_interface(*module_interface, SWITCH_API_INTERFACE ); commands_api_interface->interface_name = "hash_dump"; commands_api_interface ->desc = "dump hash/limit_hash data (used for synchronization)" ; commands_api_interface->function = hash_dump_function; commands_api_interface ->syntax = "all|limit|db [<realm>]"; break; }; |
| 993 | SWITCH_ADD_API(commands_api_interface, "hash_remote", "hash remote", hash_remote_function, HASH_REMOTE_SYNTAX)for (;;) { commands_api_interface = (switch_api_interface_t * )switch_loadable_module_create_interface(*module_interface, SWITCH_API_INTERFACE ); commands_api_interface->interface_name = "hash_remote"; commands_api_interface->desc = "hash remote"; commands_api_interface ->function = hash_remote_function; commands_api_interface-> syntax = "list|kill [name]|rescan"; break; }; |
| 994 | |
| 995 | switch_console_set_complete("add hash insert"); |
| 996 | switch_console_set_complete("add hash delete"); |
| 997 | switch_console_set_complete("add hash select"); |
| 998 | |
| 999 | switch_console_set_complete("add hash_remote list"); |
| 1000 | switch_console_set_complete("add hash_remote kill"); |
| 1001 | switch_console_set_complete("add hash_remote rescan"); |
| 1002 | |
| 1003 | do_config(SWITCH_FALSE); |
| 1004 | |
| 1005 | /* indicate that the module should continue to be loaded */ |
| 1006 | return SWITCH_STATUS_SUCCESS; |
| 1007 | } |
| 1008 | |
| 1009 | |
| 1010 | SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_hash_shutdown)switch_status_t mod_hash_shutdown (void) |
| 1011 | { |
| 1012 | switch_hash_index_t *hi = NULL((void*)0); |
| 1013 | switch_bool_t remote_clean = SWITCH_TRUE; |
| 1014 | |
| 1015 | switch_scheduler_del_task_group("mod_hash"); |
| 1016 | |
| 1017 | /* Kill remote connections, destroy needs a wrlock so we unlock after finding a pointer */ |
| 1018 | while(remote_clean) { |
| 1019 | void *val; |
| 1020 | const void *key = NULL((void*)0); |
| 1021 | switch_ssize_t keylen; |
| 1022 | limit_remote_t *item = NULL((void*)0); |
| 1023 | |
| 1024 | switch_thread_rwlock_rdlock(globals.remote_hash_rwlock); |
| 1025 | if ((hi = switch_core_hash_first(globals.remote_hash)switch_core_hash_first_iter(globals.remote_hash, ((void*)0)))) { |
| 1026 | switch_core_hash_this(hi, &key, &keylen, &val); |
| 1027 | item = (limit_remote_t *)val; |
| 1028 | } |
| 1029 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 1030 | |
| 1031 | if (!item) { |
| 1032 | remote_clean = SWITCH_FALSE; |
| 1033 | } else { |
| 1034 | limit_remote_destroy(&item); |
| 1035 | switch_thread_rwlock_wrlock(globals.remote_hash_rwlock); |
| 1036 | switch_core_hash_delete(globals.remote_hash, key); |
| 1037 | switch_thread_rwlock_unlock(globals.remote_hash_rwlock); |
| 1038 | } |
| 1039 | } |
| 1040 | |
| 1041 | switch_thread_rwlock_wrlock(globals.limit_hash_rwlock); |
| 1042 | switch_thread_rwlock_wrlock(globals.db_hash_rwlock); |
| 1043 | |
| 1044 | while ((hi = switch_core_hash_first_iter( globals.limit_hash, hi))) { |
| 1045 | void *val = NULL((void*)0); |
| 1046 | const void *key; |
| 1047 | switch_ssize_t keylen; |
| 1048 | switch_core_hash_this(hi, &key, &keylen, &val); |
| 1049 | free(val); |
| 1050 | switch_core_hash_delete(globals.limit_hash, key); |
| 1051 | } |
| 1052 | |
| 1053 | while ((hi = switch_core_hash_first_iter( globals.db_hash, hi))) { |
| 1054 | void *val = NULL((void*)0); |
| 1055 | const void *key; |
| 1056 | switch_ssize_t keylen; |
| 1057 | switch_core_hash_this(hi, &key, &keylen, &val); |
| 1058 | free(val); |
| 1059 | switch_core_hash_delete(globals.db_hash, key); |
| 1060 | } |
| 1061 | |
| 1062 | switch_core_hash_destroy(&globals.limit_hash); |
| 1063 | switch_core_hash_destroy(&globals.db_hash); |
| 1064 | switch_core_hash_destroy(&globals.remote_hash); |
| 1065 | |
| 1066 | switch_thread_rwlock_unlock(globals.limit_hash_rwlock); |
| 1067 | switch_thread_rwlock_unlock(globals.db_hash_rwlock); |
| 1068 | |
| 1069 | switch_thread_rwlock_destroy(globals.db_hash_rwlock); |
| 1070 | switch_thread_rwlock_destroy(globals.limit_hash_rwlock); |
| 1071 | switch_thread_rwlock_destroy(globals.remote_hash_rwlock); |
| 1072 | |
| 1073 | |
| 1074 | return SWITCH_STATUS_SUCCESS; |
| 1075 | } |
| 1076 | |
| 1077 | /* For Emacs: |
| 1078 | * Local Variables: |
| 1079 | * mode:c |
| 1080 | * indent-tabs-mode:t |
| 1081 | * tab-width:4 |
| 1082 | * c-basic-offset:4 |
| 1083 | * End: |
| 1084 | * For VIM: |
| 1085 | * vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet: |
| 1086 | */ |