* \author Russell Bryant <russell@digium.com>
*/
-#include "asterisk.h"
+/*** MODULEINFO
+ <support_level>core</support_level>
+ ***/
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+#include "asterisk.h"
#include "asterisk/_private.h"
#include "asterisk/utils.h"
#include "asterisk/taskprocessor.h"
#include "asterisk/astobj2.h"
-
-static struct ast_taskprocessor *event_dispatcher;
+#include "asterisk/cli.h"
/*!
* \brief An event information element
} __attribute__((packed));
-/*!
- * \brief A holder for an event
- *
- * \details This struct used to have more of a purpose than it does now.
- * It is used to hold events in the event cache. It can be completely removed
- * if one of these two things is done:
- * - ast_event gets changed such that it never has to be realloc()d
- * - astobj2 is updated so that you can realloc() an astobj2 object
- */
-struct ast_event_ref {
- struct ast_event *event;
-};
-
struct ast_event_ie_val {
AST_LIST_ENTRY(ast_event_ie_val) entry;
enum ast_event_ie_type ie_type;
enum ast_event_ie_pltype ie_pltype;
union {
uint32_t uint;
- struct {
- uint32_t hash;
- const char *str;
- };
- void *raw;
- } payload;
- size_t raw_datalen;
-};
-
-/*! \brief Event subscription */
-struct ast_event_sub {
- enum ast_event_type type;
- ast_event_cb_t cb;
- char description[64];
- void *userdata;
- uint32_t uniqueid;
- AST_LIST_HEAD_NOLOCK(, ast_event_ie_val) ie_vals;
- AST_RWDLLIST_ENTRY(ast_event_sub) entry;
-};
-
-static uint32_t sub_uniqueid;
-
-/*! \brief Event subscriptions
- * The event subscribers are indexed by which event they are subscribed to */
-static AST_RWDLLIST_HEAD(ast_event_sub_list, ast_event_sub) ast_event_subs[AST_EVENT_TOTAL];
-
-static int ast_event_cmp(void *obj, void *arg, int flags);
-static int ast_event_hash_mwi(const void *obj, const int flags);
-static int ast_event_hash_devstate(const void *obj, const int flags);
-static int ast_event_hash_devstate_change(const void *obj, const int flags);
-
-#ifdef LOW_MEMORY
-#define NUM_CACHE_BUCKETS 17
-#else
-#define NUM_CACHE_BUCKETS 563
-#endif
-
-#define MAX_CACHE_ARGS 8
-
-/*!
- * \brief Event types that are kept in the cache.
- */
-static struct {
- /*!
- * \brief Container of cached events
- *
- * \details This gets allocated in ast_event_init() when Asterisk starts
- * for the event types declared as using the cache.
- */
- struct ao2_container *container;
- /*! \brief Event type specific hash function */
- ao2_hash_fn *hash_fn;
- /*!
- * \brief Information Elements used for caching
- *
- * \details This array is the set of information elements that will be unique
- * among all events in the cache for this event type. When a new event gets
- * cached, a previous event with the same values for these information elements
- * will be replaced.
- */
- enum ast_event_ie_type cache_args[MAX_CACHE_ARGS];
-} ast_event_cache[AST_EVENT_TOTAL] = {
- [AST_EVENT_MWI] = {
- .hash_fn = ast_event_hash_mwi,
- .cache_args = { AST_EVENT_IE_MAILBOX, AST_EVENT_IE_CONTEXT },
- },
- [AST_EVENT_DEVICE_STATE] = {
- .hash_fn = ast_event_hash_devstate,
- .cache_args = { AST_EVENT_IE_DEVICE, },
- },
- [AST_EVENT_DEVICE_STATE_CHANGE] = {
- .hash_fn = ast_event_hash_devstate_change,
- .cache_args = { AST_EVENT_IE_DEVICE, AST_EVENT_IE_EID, },
- },
-};
-
-/*!
- * The index of each entry _must_ match the event type number!
- */
-static struct event_name {
- enum ast_event_type type;
- const char *name;
-} event_names[] = {
- { 0, "" },
- { AST_EVENT_CUSTOM, "Custom" },
- { AST_EVENT_MWI, "MWI" },
- { AST_EVENT_SUB, "Subscription" },
- { AST_EVENT_UNSUB, "Unsubscription" },
- { AST_EVENT_DEVICE_STATE, "DeviceState" },
- { AST_EVENT_DEVICE_STATE_CHANGE, "DeviceStateChange" },
- { AST_EVENT_CEL, "CEL" },
-};
-
-/*!
- * The index of each entry _must_ match the event ie number!
- */
-static struct ie_map {
- enum ast_event_ie_type ie_type;
- enum ast_event_ie_pltype ie_pltype;
- const char *name;
-} ie_maps[] = {
- { 0, 0, "" },
- { AST_EVENT_IE_NEWMSGS, AST_EVENT_IE_PLTYPE_UINT, "NewMessages" },
- { AST_EVENT_IE_OLDMSGS, AST_EVENT_IE_PLTYPE_UINT, "OldMessages" },
- { AST_EVENT_IE_MAILBOX, AST_EVENT_IE_PLTYPE_STR, "Mailbox" },
- { AST_EVENT_IE_UNIQUEID, AST_EVENT_IE_PLTYPE_UINT, "UniqueID" },
- { AST_EVENT_IE_EVENTTYPE, AST_EVENT_IE_PLTYPE_UINT, "EventType" },
- { AST_EVENT_IE_EXISTS, AST_EVENT_IE_PLTYPE_UINT, "Exists" },
- { AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, "Device" },
- { AST_EVENT_IE_STATE, AST_EVENT_IE_PLTYPE_UINT, "State" },
- { AST_EVENT_IE_CONTEXT, AST_EVENT_IE_PLTYPE_STR, "Context" },
- { AST_EVENT_IE_EID, AST_EVENT_IE_PLTYPE_RAW, "EntityID" },
- { AST_EVENT_IE_CEL_EVENT_TYPE, AST_EVENT_IE_PLTYPE_UINT, "CELEventType" },
- { AST_EVENT_IE_CEL_EVENT_TIME, AST_EVENT_IE_PLTYPE_UINT, "CELEventTime" },
- { AST_EVENT_IE_CEL_EVENT_TIME_USEC, AST_EVENT_IE_PLTYPE_UINT, "CELEventTimeUSec" },
- { AST_EVENT_IE_CEL_USEREVENT_NAME, AST_EVENT_IE_PLTYPE_UINT, "CELUserEventName" },
- { AST_EVENT_IE_CEL_CIDNAME, AST_EVENT_IE_PLTYPE_STR, "CELCIDName" },
- { AST_EVENT_IE_CEL_CIDNUM, AST_EVENT_IE_PLTYPE_STR, "CELCIDNum" },
- { AST_EVENT_IE_CEL_EXTEN, AST_EVENT_IE_PLTYPE_STR, "CELExten" },
- { AST_EVENT_IE_CEL_CONTEXT, AST_EVENT_IE_PLTYPE_STR, "CELContext" },
- { AST_EVENT_IE_CEL_CHANNAME, AST_EVENT_IE_PLTYPE_STR, "CELChanName" },
- { AST_EVENT_IE_CEL_APPNAME, AST_EVENT_IE_PLTYPE_STR, "CELAppName" },
- { AST_EVENT_IE_CEL_APPDATA, AST_EVENT_IE_PLTYPE_STR, "CELAppData" },
- { AST_EVENT_IE_CEL_AMAFLAGS, AST_EVENT_IE_PLTYPE_STR, "CELAMAFlags" },
- { AST_EVENT_IE_CEL_ACCTCODE, AST_EVENT_IE_PLTYPE_UINT, "CELAcctCode" },
- { AST_EVENT_IE_CEL_UNIQUEID, AST_EVENT_IE_PLTYPE_STR, "CELUniqueID" },
- { AST_EVENT_IE_CEL_USERFIELD, AST_EVENT_IE_PLTYPE_STR, "CELUserField" },
- { AST_EVENT_IE_CEL_CIDANI, AST_EVENT_IE_PLTYPE_STR, "CELCIDani" },
- { AST_EVENT_IE_CEL_CIDRDNIS, AST_EVENT_IE_PLTYPE_STR, "CELCIDrdnis" },
- { AST_EVENT_IE_CEL_CIDDNID, AST_EVENT_IE_PLTYPE_STR, "CELCIDdnid" },
- { AST_EVENT_IE_CEL_PEER, AST_EVENT_IE_PLTYPE_STR, "CELPeer" },
- { AST_EVENT_IE_CEL_LINKEDID, AST_EVENT_IE_PLTYPE_STR, "CELLinkedID" },
- { AST_EVENT_IE_CEL_PEERACCT, AST_EVENT_IE_PLTYPE_STR, "CELPeerAcct" },
- { AST_EVENT_IE_CEL_EXTRA, AST_EVENT_IE_PLTYPE_STR, "CELExtra" },
-};
-
-const char *ast_event_get_type_name(const struct ast_event *event)
-{
- enum ast_event_type type;
-
- type = ast_event_get_type(event);
-
- if (type >= AST_EVENT_TOTAL || type < 0) {
- ast_log(LOG_ERROR, "Invalid event type - '%d'\n", type);
- return "";
- }
-
- return event_names[type].name;
-}
-
-int ast_event_str_to_event_type(const char *str, enum ast_event_type *event_type)
-{
- int i;
-
- for (i = 0; i < ARRAY_LEN(event_names); i++) {
- if (strcasecmp(event_names[i].name, str))
- continue;
-
- *event_type = event_names[i].type;
- return 0;
- }
-
- return -1;
-}
-
-const char *ast_event_get_ie_type_name(enum ast_event_ie_type ie_type)
-{
- if (ie_type <= 0 || ie_type > AST_EVENT_IE_MAX) {
- ast_log(LOG_ERROR, "Invalid IE type - '%d'\n", ie_type);
- return "";
- }
-
- if (ie_maps[ie_type].ie_type != ie_type) {
- ast_log(LOG_ERROR, "The ie type passed in does not match the ie type defined in the ie table.\n");
- return "";
- }
-
- return ie_maps[ie_type].name;
-}
-
-enum ast_event_ie_pltype ast_event_get_ie_pltype(enum ast_event_ie_type ie_type)
-{
- if (ie_type <= 0 || ie_type > AST_EVENT_IE_MAX) {
- ast_log(LOG_ERROR, "Invalid IE type - '%d'\n", ie_type);
- return AST_EVENT_IE_PLTYPE_UNKNOWN;
- }
-
- if (ie_maps[ie_type].ie_type != ie_type) {
- ast_log(LOG_ERROR, "The ie type passed in does not match the ie type defined in the ie table.\n");
- return AST_EVENT_IE_PLTYPE_UNKNOWN;
- }
-
- return ie_maps[ie_type].ie_pltype;
-}
-
-int ast_event_str_to_ie_type(const char *str, enum ast_event_ie_type *ie_type)
-{
- int i;
-
- for (i = 0; i < ARRAY_LEN(ie_maps); i++) {
- if (strcasecmp(ie_maps[i].name, str))
- continue;
-
- *ie_type = ie_maps[i].ie_type;
- return 0;
- }
-
- return -1;
-}
-
-size_t ast_event_get_size(const struct ast_event *event)
-{
- size_t res;
-
- res = ntohs(event->event_len);
-
- return res;
-}
-
-static void ast_event_ie_val_destroy(struct ast_event_ie_val *ie_val)
-{
- switch (ie_val->ie_pltype) {
- case AST_EVENT_IE_PLTYPE_STR:
- ast_free((char *) ie_val->payload.str);
- break;
- case AST_EVENT_IE_PLTYPE_RAW:
- ast_free(ie_val->payload.raw);
- break;
- case AST_EVENT_IE_PLTYPE_UINT:
- case AST_EVENT_IE_PLTYPE_BITFLAGS:
- case AST_EVENT_IE_PLTYPE_EXISTS:
- case AST_EVENT_IE_PLTYPE_UNKNOWN:
- break;
- }
-
- ast_free(ie_val);
-}
-
-enum ast_event_subscriber_res ast_event_check_subscriber(enum ast_event_type type, ...)
-{
- va_list ap;
- enum ast_event_ie_type ie_type;
- enum ast_event_subscriber_res res = AST_EVENT_SUB_NONE;
- struct ast_event_ie_val *ie_val, *sub_ie_val;
- struct ast_event_sub *sub;
- AST_LIST_HEAD_NOLOCK_STATIC(ie_vals, ast_event_ie_val);
-
- if (type >= AST_EVENT_TOTAL) {
- ast_log(LOG_ERROR, "%u is an invalid type!\n", type);
- return res;
- }
-
- va_start(ap, type);
- for (ie_type = va_arg(ap, enum ast_event_type);
- ie_type != AST_EVENT_IE_END;
- ie_type = va_arg(ap, enum ast_event_type))
- {
- struct ast_event_ie_val *ie_value = alloca(sizeof(*ie_value));
- int insert = 1;
- memset(ie_value, 0, sizeof(*ie_value));
- ie_value->ie_type = ie_type;
- ie_value->ie_pltype = va_arg(ap, enum ast_event_ie_pltype);
- switch (ie_value->ie_pltype) {
- case AST_EVENT_IE_PLTYPE_UINT:
- ie_value->payload.uint = va_arg(ap, uint32_t);
- break;
- case AST_EVENT_IE_PLTYPE_BITFLAGS:
- ie_value->payload.uint = va_arg(ap, uint32_t);
- break;
- case AST_EVENT_IE_PLTYPE_STR:
- ie_value->payload.str = va_arg(ap, const char *);
- break;
- case AST_EVENT_IE_PLTYPE_RAW:
- {
- void *data = va_arg(ap, void *);
- size_t datalen = va_arg(ap, size_t);
- ie_value->payload.raw = alloca(datalen);
- memcpy(ie_value->payload.raw, data, datalen);
- ie_value->raw_datalen = datalen;
- break;
- }
- case AST_EVENT_IE_PLTYPE_UNKNOWN:
- insert = 0;
- case AST_EVENT_IE_PLTYPE_EXISTS:
- break;
- }
-
- if (insert) {
- AST_LIST_INSERT_TAIL(&ie_vals, ie_value, entry);
- }
- }
- va_end(ap);
-
- AST_RWDLLIST_RDLOCK(&ast_event_subs[type]);
- AST_RWDLLIST_TRAVERSE(&ast_event_subs[type], sub, entry) {
- AST_LIST_TRAVERSE(&ie_vals, ie_val, entry) {
- int break_out = 0;
-
- AST_LIST_TRAVERSE(&sub->ie_vals, sub_ie_val, entry) {
- if (sub_ie_val->ie_type == ie_val->ie_type) {
- break;
- }
- }
-
- if (!sub_ie_val) {
- /* This subscriber doesn't care about this IE, so consider
- * it matched. */
- continue;
- }
-
- switch (ie_val->ie_pltype) {
- case AST_EVENT_IE_PLTYPE_UINT:
- break_out = (ie_val->payload.uint != sub_ie_val->payload.uint);
- break;
- case AST_EVENT_IE_PLTYPE_BITFLAGS:
- /* if the subscriber has requested *any* of the bitflags we are providing,
- * then it's a match
- */
- break_out = (ie_val->payload.uint & sub_ie_val->payload.uint);
- break;
- case AST_EVENT_IE_PLTYPE_STR:
- break_out = strcmp(ie_val->payload.str, sub_ie_val->payload.str);
- break;
- case AST_EVENT_IE_PLTYPE_RAW:
- break_out = memcmp(ie_val->payload.raw,
- sub_ie_val->payload.raw, ie_val->raw_datalen);
- break;
- case AST_EVENT_IE_PLTYPE_EXISTS:
- /* The subscriber doesn't actually care what the value is */
- break_out = 1;
- break;
- case AST_EVENT_IE_PLTYPE_UNKNOWN:
- break;
- }
-
- if (break_out) {
- break;
- }
- }
-
- if (!ie_val) {
- /* Everything matched */
- break;
- }
- }
- AST_RWDLLIST_UNLOCK(&ast_event_subs[type]);
-
- if (sub) {
- /* All parameters were matched */
- return AST_EVENT_SUB_EXISTS;
- }
-
- AST_RWDLLIST_RDLOCK(&ast_event_subs[AST_EVENT_ALL]);
- if (!AST_DLLIST_EMPTY(&ast_event_subs[AST_EVENT_ALL])) {
- res = AST_EVENT_SUB_EXISTS;
- }
- AST_RWDLLIST_UNLOCK(&ast_event_subs[AST_EVENT_ALL]);
-
- return res;
-}
-
-static int match_ie_val(const struct ast_event *event,
- const struct ast_event_ie_val *ie_val, const struct ast_event *event2)
-{
- switch (ie_val->ie_pltype) {
- case AST_EVENT_IE_PLTYPE_UINT:
- {
- uint32_t val = event2 ? ast_event_get_ie_uint(event2, ie_val->ie_type) : ie_val->payload.uint;
-
- return (val == ast_event_get_ie_uint(event, ie_val->ie_type)) ? 1 : 0;
- }
-
- case AST_EVENT_IE_PLTYPE_BITFLAGS:
- {
- uint32_t flags = event2 ? ast_event_get_ie_uint(event2, ie_val->ie_type) : ie_val->payload.uint;
-
- /* if the subscriber has requested *any* of the bitflags that this event provides,
- * then it's a match
- */
- return (flags & ast_event_get_ie_bitflags(event, ie_val->ie_type)) ? 1 : 0;
- }
-
- case AST_EVENT_IE_PLTYPE_STR:
- {
- const char *str;
- uint32_t hash;
-
- hash = event2 ? ast_event_get_ie_str_hash(event2, ie_val->ie_type) : ie_val->payload.hash;
- if (hash != ast_event_get_ie_str_hash(event, ie_val->ie_type)) {
- return 0;
- }
-
- str = event2 ? ast_event_get_ie_str(event2, ie_val->ie_type) : ie_val->payload.str;
- if (str && !strcmp(str, ast_event_get_ie_str(event, ie_val->ie_type))) {
- return 1;
- }
-
- return 0;
- }
-
- case AST_EVENT_IE_PLTYPE_RAW:
- {
- const void *buf = event2 ? ast_event_get_ie_raw(event2, ie_val->ie_type) : ie_val->payload.raw;
-
- return (buf && !memcmp(buf, ast_event_get_ie_raw(event, ie_val->ie_type), ie_val->raw_datalen)) ? 1 : 0;
- }
-
- case AST_EVENT_IE_PLTYPE_EXISTS:
- {
- return ast_event_get_ie_raw(event, ie_val->ie_type) ? 1 : 0;
- }
-
- case AST_EVENT_IE_PLTYPE_UNKNOWN:
- return 0;
- }
-
- return 0;
-}
-
-static int dump_cache_cb(void *obj, void *arg, int flags)
-{
- const struct ast_event_ref *event_ref = obj;
- const struct ast_event *event = event_ref->event;
- const struct ast_event_sub *event_sub = arg;
- struct ast_event_ie_val *ie_val = NULL;
-
- AST_LIST_TRAVERSE(&event_sub->ie_vals, ie_val, entry) {
- if (!match_ie_val(event, ie_val, NULL)) {
- break;
- }
- }
-
- if (!ie_val) {
- /* All parameters were matched on this cache entry, so dump it */
- event_sub->cb(event, event_sub->userdata);
- }
-
- return 0;
-}
-
-/*! \brief Dump the event cache for the subscribed event type */
-void ast_event_dump_cache(const struct ast_event_sub *event_sub)
-{
- ao2_callback(ast_event_cache[event_sub->type].container, OBJ_NODATA,
- dump_cache_cb, (void *) event_sub);
-}
-
-static struct ast_event *gen_sub_event(struct ast_event_sub *sub)
-{
- struct ast_event_ie_val *ie_val;
- struct ast_event *event;
-
- event = ast_event_new(AST_EVENT_SUB,
- AST_EVENT_IE_UNIQUEID, AST_EVENT_IE_PLTYPE_UINT, sub->uniqueid,
- AST_EVENT_IE_EVENTTYPE, AST_EVENT_IE_PLTYPE_UINT, sub->type,
- AST_EVENT_IE_DESCRIPTION, AST_EVENT_IE_PLTYPE_STR, sub->description,
- AST_EVENT_IE_END);
-
- if (!event)
- return NULL;
-
- AST_LIST_TRAVERSE(&sub->ie_vals, ie_val, entry) {
- switch (ie_val->ie_pltype) {
- case AST_EVENT_IE_PLTYPE_UNKNOWN:
- break;
- case AST_EVENT_IE_PLTYPE_EXISTS:
- ast_event_append_ie_uint(&event, AST_EVENT_IE_EXISTS, ie_val->ie_type);
- break;
- case AST_EVENT_IE_PLTYPE_UINT:
- ast_event_append_ie_uint(&event, ie_val->ie_type, ie_val->payload.uint);
- break;
- case AST_EVENT_IE_PLTYPE_BITFLAGS:
- ast_event_append_ie_bitflags(&event, ie_val->ie_type, ie_val->payload.uint);
- break;
- case AST_EVENT_IE_PLTYPE_STR:
- ast_event_append_ie_str(&event, ie_val->ie_type, ie_val->payload.str);
- break;
- case AST_EVENT_IE_PLTYPE_RAW:
- ast_event_append_ie_raw(&event, ie_val->ie_type, ie_val->payload.raw, ie_val->raw_datalen);
- break;
- }
- if (!event)
- break;
- }
-
- return event;
-}
-
-/*! \brief Send AST_EVENT_SUB events to this subscriber of ... subscriber events */
-void ast_event_report_subs(const struct ast_event_sub *event_sub)
-{
- struct ast_event *event;
- struct ast_event_sub *sub;
- enum ast_event_type event_type = -1;
- struct ast_event_ie_val *ie_val;
-
- if (event_sub->type != AST_EVENT_SUB)
- return;
-
- AST_LIST_TRAVERSE(&event_sub->ie_vals, ie_val, entry) {
- if (ie_val->ie_type == AST_EVENT_IE_EVENTTYPE) {
- event_type = ie_val->payload.uint;
- break;
- }
- }
-
- if (event_type == -1)
- return;
-
- AST_RWDLLIST_RDLOCK(&ast_event_subs[event_type]);
- AST_RWDLLIST_TRAVERSE(&ast_event_subs[event_type], sub, entry) {
- if (event_sub == sub) {
- continue;
- }
-
- event = gen_sub_event(sub);
-
- if (!event) {
- continue;
- }
-
- event_sub->cb(event, event_sub->userdata);
-
- ast_event_destroy(event);
- }
- AST_RWDLLIST_UNLOCK(&ast_event_subs[event_type]);
-}
-
-struct ast_event_sub *ast_event_subscribe_new(enum ast_event_type type,
- ast_event_cb_t cb, void *userdata)
-{
- struct ast_event_sub *sub;
-
- if (type < 0 || type >= AST_EVENT_TOTAL) {
- ast_log(LOG_ERROR, "%u is an invalid type!\n", type);
- return NULL;
- }
-
- if (!(sub = ast_calloc(1, sizeof(*sub)))) {
- return NULL;
- }
-
- sub->type = type;
- sub->cb = cb;
- sub->userdata = userdata;
- sub->uniqueid = ast_atomic_fetchadd_int((int *) &sub_uniqueid, 1);
-
- return sub;
-}
-
-int ast_event_sub_append_ie_uint(struct ast_event_sub *sub,
- enum ast_event_ie_type ie_type, uint32_t unsigned_int)
-{
- struct ast_event_ie_val *ie_val;
-
- if (ie_type < 0 || ie_type > AST_EVENT_IE_MAX) {
- return -1;
- }
-
- if (!(ie_val = ast_calloc(1, sizeof(*ie_val)))) {
- return -1;
- }
-
- ie_val->ie_type = ie_type;
- ie_val->payload.uint = unsigned_int;
- ie_val->ie_pltype = AST_EVENT_IE_PLTYPE_UINT;
-
- AST_LIST_INSERT_TAIL(&sub->ie_vals, ie_val, entry);
-
- return 0;
-}
-
-int ast_event_sub_append_ie_bitflags(struct ast_event_sub *sub,
- enum ast_event_ie_type ie_type, uint32_t flags)
-{
- struct ast_event_ie_val *ie_val;
-
- if (ie_type < 0 || ie_type > AST_EVENT_IE_MAX)
- return -1;
-
- if (!(ie_val = ast_calloc(1, sizeof(*ie_val))))
- return -1;
-
- ie_val->ie_type = ie_type;
- ie_val->payload.uint = flags;
- ie_val->ie_pltype = AST_EVENT_IE_PLTYPE_BITFLAGS;
-
- AST_LIST_INSERT_TAIL(&sub->ie_vals, ie_val, entry);
-
- return 0;
-}
-
-int ast_event_sub_append_ie_exists(struct ast_event_sub *sub,
- enum ast_event_ie_type ie_type)
-{
- struct ast_event_ie_val *ie_val;
-
- if (ie_type < 0 || ie_type > AST_EVENT_IE_MAX) {
- return -1;
- }
-
- if (!(ie_val = ast_calloc(1, sizeof(*ie_val)))) {
- return -1;
- }
-
- ie_val->ie_type = ie_type;
- ie_val->ie_pltype = AST_EVENT_IE_PLTYPE_EXISTS;
-
- AST_LIST_INSERT_TAIL(&sub->ie_vals, ie_val, entry);
-
- return 0;
-}
-
-int ast_event_sub_append_ie_str(struct ast_event_sub *sub,
- enum ast_event_ie_type ie_type, const char *str)
-{
- struct ast_event_ie_val *ie_val;
-
- if (ie_type < 0 || ie_type > AST_EVENT_IE_MAX) {
- return -1;
- }
-
- if (!(ie_val = ast_calloc(1, sizeof(*ie_val)))) {
- return -1;
- }
-
- ie_val->ie_type = ie_type;
- ie_val->ie_pltype = AST_EVENT_IE_PLTYPE_STR;
-
- if (!(ie_val->payload.str = ast_strdup(str))) {
- ast_free(ie_val);
- return -1;
- }
-
- ie_val->payload.hash = ast_str_hash(str);
-
- AST_LIST_INSERT_TAIL(&sub->ie_vals, ie_val, entry);
-
- return 0;
-}
-
-int ast_event_sub_append_ie_raw(struct ast_event_sub *sub,
- enum ast_event_ie_type ie_type, void *data, size_t raw_datalen)
-{
- struct ast_event_ie_val *ie_val;
-
- if (ie_type < 0 || ie_type > AST_EVENT_IE_MAX) {
- return -1;
- }
-
- if (!(ie_val = ast_calloc(1, sizeof(*ie_val)))) {
- return -1;
- }
-
- ie_val->ie_type = ie_type;
- ie_val->ie_pltype = AST_EVENT_IE_PLTYPE_RAW;
- ie_val->raw_datalen = raw_datalen;
-
- if (!(ie_val->payload.raw = ast_malloc(raw_datalen))) {
- ast_free(ie_val);
- return -1;
- }
-
- memcpy(ie_val->payload.raw, data, raw_datalen);
-
- AST_LIST_INSERT_TAIL(&sub->ie_vals, ie_val, entry);
-
- return 0;
-}
-
-int ast_event_sub_activate(struct ast_event_sub *sub)
-{
- if (ast_event_check_subscriber(AST_EVENT_SUB,
- AST_EVENT_IE_EVENTTYPE, AST_EVENT_IE_PLTYPE_UINT, sub->type,
- AST_EVENT_IE_END) != AST_EVENT_SUB_NONE) {
- struct ast_event *event;
-
- event = gen_sub_event(sub);
-
- if (event) {
- ast_event_queue(event);
- }
- }
-
- AST_RWDLLIST_WRLOCK(&ast_event_subs[sub->type]);
- AST_RWDLLIST_INSERT_TAIL(&ast_event_subs[sub->type], sub, entry);
- AST_RWDLLIST_UNLOCK(&ast_event_subs[sub->type]);
-
- return 0;
-}
-
-struct ast_event_sub *ast_event_subscribe(enum ast_event_type type, ast_event_cb_t cb,
- char *description, void *userdata, ...)
-{
- va_list ap;
- enum ast_event_ie_type ie_type;
- struct ast_event_sub *sub;
-
- if (!(sub = ast_event_subscribe_new(type, cb, userdata))) {
- return NULL;
- }
-
- ast_copy_string(sub->description, description, sizeof(sub->description));
-
- va_start(ap, userdata);
- for (ie_type = va_arg(ap, enum ast_event_type);
- ie_type != AST_EVENT_IE_END;
- ie_type = va_arg(ap, enum ast_event_type))
- {
- enum ast_event_ie_pltype ie_pltype;
-
- ie_pltype = va_arg(ap, enum ast_event_ie_pltype);
-
- switch (ie_pltype) {
- case AST_EVENT_IE_PLTYPE_UNKNOWN:
- break;
- case AST_EVENT_IE_PLTYPE_UINT:
- {
- uint32_t unsigned_int = va_arg(ap, uint32_t);
- ast_event_sub_append_ie_uint(sub, ie_type, unsigned_int);
- break;
- }
- case AST_EVENT_IE_PLTYPE_BITFLAGS:
- {
- uint32_t unsigned_int = va_arg(ap, uint32_t);
- ast_event_sub_append_ie_bitflags(sub, ie_type, unsigned_int);
- break;
- }
- case AST_EVENT_IE_PLTYPE_STR:
- {
- const char *str = va_arg(ap, const char *);
- ast_event_sub_append_ie_str(sub, ie_type, str);
- break;
- }
- case AST_EVENT_IE_PLTYPE_RAW:
- {
- void *data = va_arg(ap, void *);
- size_t data_len = va_arg(ap, size_t);
- ast_event_sub_append_ie_raw(sub, ie_type, data, data_len);
- break;
- }
- case AST_EVENT_IE_PLTYPE_EXISTS:
- ast_event_sub_append_ie_exists(sub, ie_type);
- break;
- }
- }
- va_end(ap);
+ struct {
+ uint32_t hash;
+ const char *str;
+ };
+ void *raw;
+ } payload;
+ size_t raw_datalen;
+};
- ast_event_sub_activate(sub);
+/*!
+ * \brief Event Names
+ */
+static const char * const event_names[AST_EVENT_TOTAL] = {
+ [AST_EVENT_ALL] = "All",
+ [AST_EVENT_CUSTOM] = "Custom",
+ [AST_EVENT_MWI] = "MWI",
+ [AST_EVENT_SUB] = "Subscription",
+ [AST_EVENT_UNSUB] = "Unsubscription",
+ [AST_EVENT_DEVICE_STATE] = "DeviceState",
+ [AST_EVENT_DEVICE_STATE_CHANGE] = "DeviceStateChange",
+ [AST_EVENT_CEL] = "CEL",
+ [AST_EVENT_SECURITY] = "Security",
+ [AST_EVENT_NETWORK_CHANGE] = "NetworkChange",
+ [AST_EVENT_PRESENCE_STATE] = "PresenceState",
+ [AST_EVENT_ACL_CHANGE] = "ACLChange",
+ [AST_EVENT_PING] = "Ping",
+};
- return sub;
-}
+/*!
+ * \brief IE payload types and names
+ */
+static const struct ie_map {
+ enum ast_event_ie_pltype ie_pltype;
+ const char *name;
+} ie_maps[AST_EVENT_IE_TOTAL] = {
+ [AST_EVENT_IE_NEWMSGS] = { AST_EVENT_IE_PLTYPE_UINT, "NewMessages" },
+ [AST_EVENT_IE_OLDMSGS] = { AST_EVENT_IE_PLTYPE_UINT, "OldMessages" },
+ [AST_EVENT_IE_MAILBOX] = { AST_EVENT_IE_PLTYPE_STR, "Mailbox" },
+ [AST_EVENT_IE_UNIQUEID] = { AST_EVENT_IE_PLTYPE_UINT, "UniqueID" },
+ [AST_EVENT_IE_EVENTTYPE] = { AST_EVENT_IE_PLTYPE_UINT, "EventType" },
+ [AST_EVENT_IE_EXISTS] = { AST_EVENT_IE_PLTYPE_UINT, "Exists" },
+ [AST_EVENT_IE_DEVICE] = { AST_EVENT_IE_PLTYPE_STR, "Device" },
+ [AST_EVENT_IE_STATE] = { AST_EVENT_IE_PLTYPE_UINT, "State" },
+ [AST_EVENT_IE_CONTEXT] = { AST_EVENT_IE_PLTYPE_STR, "Context" },
+ [AST_EVENT_IE_EID] = { AST_EVENT_IE_PLTYPE_RAW, "EntityID" },
+ [AST_EVENT_IE_CEL_EVENT_TYPE] = { AST_EVENT_IE_PLTYPE_UINT, "CELEventType" },
+ [AST_EVENT_IE_CEL_EVENT_TIME] = { AST_EVENT_IE_PLTYPE_UINT, "CELEventTime" },
+ [AST_EVENT_IE_CEL_EVENT_TIME_USEC] = { AST_EVENT_IE_PLTYPE_UINT, "CELEventTimeUSec" },
+ [AST_EVENT_IE_CEL_USEREVENT_NAME] = { AST_EVENT_IE_PLTYPE_STR, "CELUserEventName" },
+ [AST_EVENT_IE_CEL_CIDNAME] = { AST_EVENT_IE_PLTYPE_STR, "CELCIDName" },
+ [AST_EVENT_IE_CEL_CIDNUM] = { AST_EVENT_IE_PLTYPE_STR, "CELCIDNum" },
+ [AST_EVENT_IE_CEL_EXTEN] = { AST_EVENT_IE_PLTYPE_STR, "CELExten" },
+ [AST_EVENT_IE_CEL_CONTEXT] = { AST_EVENT_IE_PLTYPE_STR, "CELContext" },
+ [AST_EVENT_IE_CEL_CHANNAME] = { AST_EVENT_IE_PLTYPE_STR, "CELChanName" },
+ [AST_EVENT_IE_CEL_APPNAME] = { AST_EVENT_IE_PLTYPE_STR, "CELAppName" },
+ [AST_EVENT_IE_CEL_APPDATA] = { AST_EVENT_IE_PLTYPE_STR, "CELAppData" },
+ [AST_EVENT_IE_CEL_AMAFLAGS] = { AST_EVENT_IE_PLTYPE_UINT, "CELAMAFlags" },
+ [AST_EVENT_IE_CEL_ACCTCODE] = { AST_EVENT_IE_PLTYPE_STR, "CELAcctCode" },
+ [AST_EVENT_IE_CEL_UNIQUEID] = { AST_EVENT_IE_PLTYPE_STR, "CELUniqueID" },
+ [AST_EVENT_IE_CEL_USERFIELD] = { AST_EVENT_IE_PLTYPE_STR, "CELUserField" },
+ [AST_EVENT_IE_CEL_CIDANI] = { AST_EVENT_IE_PLTYPE_STR, "CELCIDani" },
+ [AST_EVENT_IE_CEL_CIDRDNIS] = { AST_EVENT_IE_PLTYPE_STR, "CELCIDrdnis" },
+ [AST_EVENT_IE_CEL_CIDDNID] = { AST_EVENT_IE_PLTYPE_STR, "CELCIDdnid" },
+ [AST_EVENT_IE_CEL_PEER] = { AST_EVENT_IE_PLTYPE_STR, "CELPeer" },
+ [AST_EVENT_IE_CEL_LINKEDID] = { AST_EVENT_IE_PLTYPE_STR, "CELLinkedID" },
+ [AST_EVENT_IE_CEL_PEERACCT] = { AST_EVENT_IE_PLTYPE_STR, "CELPeerAcct" },
+ [AST_EVENT_IE_CEL_EXTRA] = { AST_EVENT_IE_PLTYPE_STR, "CELExtra" },
+ [AST_EVENT_IE_SECURITY_EVENT] = { AST_EVENT_IE_PLTYPE_UINT, "SecurityEvent" },
+ [AST_EVENT_IE_EVENT_VERSION] = { AST_EVENT_IE_PLTYPE_UINT, "EventVersion" },
+ [AST_EVENT_IE_SERVICE] = { AST_EVENT_IE_PLTYPE_STR, "Service" },
+ [AST_EVENT_IE_MODULE] = { AST_EVENT_IE_PLTYPE_STR, "Module" },
+ [AST_EVENT_IE_ACCOUNT_ID] = { AST_EVENT_IE_PLTYPE_STR, "AccountID" },
+ [AST_EVENT_IE_SESSION_ID] = { AST_EVENT_IE_PLTYPE_STR, "SessionID" },
+ [AST_EVENT_IE_SESSION_TV] = { AST_EVENT_IE_PLTYPE_STR, "SessionTV" },
+ [AST_EVENT_IE_ACL_NAME] = { AST_EVENT_IE_PLTYPE_STR, "ACLName" },
+ [AST_EVENT_IE_LOCAL_ADDR] = { AST_EVENT_IE_PLTYPE_STR, "LocalAddress" },
+ [AST_EVENT_IE_REMOTE_ADDR] = { AST_EVENT_IE_PLTYPE_STR, "RemoteAddress" },
+ [AST_EVENT_IE_EVENT_TV] = { AST_EVENT_IE_PLTYPE_STR, "EventTV" },
+ [AST_EVENT_IE_REQUEST_TYPE] = { AST_EVENT_IE_PLTYPE_STR, "RequestType" },
+ [AST_EVENT_IE_REQUEST_PARAMS] = { AST_EVENT_IE_PLTYPE_STR, "RequestParams" },
+ [AST_EVENT_IE_AUTH_METHOD] = { AST_EVENT_IE_PLTYPE_STR, "AuthMethod" },
+ [AST_EVENT_IE_SEVERITY] = { AST_EVENT_IE_PLTYPE_STR, "Severity" },
+ [AST_EVENT_IE_EXPECTED_ADDR] = { AST_EVENT_IE_PLTYPE_STR, "ExpectedAddress" },
+ [AST_EVENT_IE_CHALLENGE] = { AST_EVENT_IE_PLTYPE_STR, "Challenge" },
+ [AST_EVENT_IE_RESPONSE] = { AST_EVENT_IE_PLTYPE_STR, "Response" },
+ [AST_EVENT_IE_EXPECTED_RESPONSE] = { AST_EVENT_IE_PLTYPE_STR, "ExpectedResponse" },
+ [AST_EVENT_IE_RECEIVED_CHALLENGE] = { AST_EVENT_IE_PLTYPE_STR, "ReceivedChallenge" },
+ [AST_EVENT_IE_RECEIVED_HASH] = { AST_EVENT_IE_PLTYPE_STR, "ReceivedHash" },
+ [AST_EVENT_IE_USING_PASSWORD] = { AST_EVENT_IE_PLTYPE_UINT, "UsingPassword" },
+ [AST_EVENT_IE_ATTEMPTED_TRANSPORT] = { AST_EVENT_IE_PLTYPE_STR, "AttemptedTransport" },
+ [AST_EVENT_IE_CACHABLE] = { AST_EVENT_IE_PLTYPE_UINT, "Cachable" },
+ [AST_EVENT_IE_PRESENCE_PROVIDER] = { AST_EVENT_IE_PLTYPE_STR, "PresenceProvider" },
+ [AST_EVENT_IE_PRESENCE_STATE] = { AST_EVENT_IE_PLTYPE_UINT, "PresenceState" },
+ [AST_EVENT_IE_PRESENCE_SUBTYPE] = { AST_EVENT_IE_PLTYPE_STR, "PresenceSubtype" },
+ [AST_EVENT_IE_PRESENCE_MESSAGE] = { AST_EVENT_IE_PLTYPE_STR, "PresenceMessage" },
+};
-void ast_event_sub_destroy(struct ast_event_sub *sub)
+const char *ast_event_get_type_name(const struct ast_event *event)
{
- struct ast_event_ie_val *ie_val;
+ enum ast_event_type type;
- while ((ie_val = AST_LIST_REMOVE_HEAD(&sub->ie_vals, entry))) {
- ast_event_ie_val_destroy(ie_val);
+ type = ast_event_get_type(event);
+
+ if ((unsigned int)type >= ARRAY_LEN(event_names)) {
+ ast_log(LOG_ERROR, "Invalid event type - '%u'\n", type);
+ return "";
}
- ast_free(sub);
+ return event_names[type];
}
-const char *ast_event_subscriber_get_description(struct ast_event_sub *sub)
+const char *ast_event_get_ie_type_name(enum ast_event_ie_type ie_type)
{
- return sub ? sub->description : NULL;
+ if (ie_type <= 0 || ie_type >= ARRAY_LEN(ie_maps)) {
+ ast_log(LOG_ERROR, "Invalid IE type - '%d'\n", ie_type);
+ return "";
+ }
+
+ return ie_maps[ie_type].name;
}
-struct ast_event_sub *ast_event_unsubscribe(struct ast_event_sub *sub)
+enum ast_event_ie_pltype ast_event_get_ie_pltype(enum ast_event_ie_type ie_type)
{
- struct ast_event *event;
-
- AST_RWDLLIST_WRLOCK(&ast_event_subs[sub->type]);
- AST_DLLIST_REMOVE(&ast_event_subs[sub->type], sub, entry);
- AST_RWDLLIST_UNLOCK(&ast_event_subs[sub->type]);
-
- if (ast_event_check_subscriber(AST_EVENT_UNSUB,
- AST_EVENT_IE_EVENTTYPE, AST_EVENT_IE_PLTYPE_UINT, sub->type,
- AST_EVENT_IE_END) != AST_EVENT_SUB_NONE) {
+ if (ie_type <= 0 || ie_type >= ARRAY_LEN(ie_maps)) {
+ ast_log(LOG_ERROR, "Invalid IE type - '%d'\n", ie_type);
+ return AST_EVENT_IE_PLTYPE_UNKNOWN;
+ }
- event = ast_event_new(AST_EVENT_UNSUB,
- AST_EVENT_IE_UNIQUEID, AST_EVENT_IE_PLTYPE_UINT, sub->uniqueid,
- AST_EVENT_IE_EVENTTYPE, AST_EVENT_IE_PLTYPE_UINT, sub->type,
- AST_EVENT_IE_DESCRIPTION, AST_EVENT_IE_PLTYPE_STR, sub->description,
- AST_EVENT_IE_END);
+ return ie_maps[ie_type].ie_pltype;
+}
- if (event) {
- ast_event_queue(event);
- }
- }
+size_t ast_event_get_size(const struct ast_event *event)
+{
+ size_t res;
- ast_event_sub_destroy(sub);
+ res = ntohs(event->event_len);
- return NULL;
+ return res;
}
-void ast_event_iterator_init(struct ast_event_iterator *iterator, const struct ast_event *event)
+/*! \brief Subscription event check list. */
+struct ast_ev_check_list {
+ AST_LIST_HEAD_NOLOCK(, ast_event_ie_val) ie_vals;
+};
+
+int ast_event_iterator_init(struct ast_event_iterator *iterator, const struct ast_event *event)
{
- iterator->event_len = ntohs(event->event_len);
+ int res = 0;
+
+ iterator->event_len = ast_event_get_size(event);
iterator->event = event;
- iterator->ie = (struct ast_event_ie *) ( ((char *) event) + sizeof(*event) );
+ if (iterator->event_len >= sizeof(*event) + sizeof(struct ast_event_ie)) {
+ iterator->ie = (struct ast_event_ie *) ( ((char *) event) + sizeof(*event) );
+ } else {
+ iterator->ie = NULL;
+ res = -1;
+ }
+
+ return res;
}
int ast_event_iterator_next(struct ast_event_iterator *iterator)
return ntohl(get_unaligned_uint32(iterator->ie->ie_payload));
}
-uint32_t ast_event_iterator_get_ie_bitflags(struct ast_event_iterator *iterator)
-{
- return ntohl(get_unaligned_uint32(iterator->ie->ie_payload));
-}
-
const char *ast_event_iterator_get_ie_str(struct ast_event_iterator *iterator)
{
const struct ast_event_ie_str_payload *str_payload;
str_payload = (struct ast_event_ie_str_payload *) iterator->ie->ie_payload;
- return str_payload->str;
+ return str_payload ? str_payload->str : NULL;
}
-void *ast_event_iterator_get_ie_raw(struct ast_event_iterator *iterator)
+static void *event_iterator_get_ie_raw(struct ast_event_iterator *iterator)
{
return iterator->ie->ie_payload;
}
return ie_val ? ntohl(get_unaligned_uint32(ie_val)) : 0;
}
-uint32_t ast_event_get_ie_bitflags(const struct ast_event *event, enum ast_event_ie_type ie_type)
+const char *ast_event_get_ie_str(const struct ast_event *event, enum ast_event_ie_type ie_type)
{
- const uint32_t *ie_val;
+ const struct ast_event_ie_str_payload *str_payload;
- ie_val = ast_event_get_ie_raw(event, ie_type);
+ str_payload = ast_event_get_ie_raw(event, ie_type);
- return ie_val ? ntohl(get_unaligned_uint32(ie_val)) : 0;
+ return str_payload ? str_payload->str : NULL;
}
-uint32_t ast_event_get_ie_str_hash(const struct ast_event *event, enum ast_event_ie_type ie_type)
+const void *ast_event_get_ie_raw(const struct ast_event *event, enum ast_event_ie_type ie_type)
{
- const struct ast_event_ie_str_payload *str_payload;
+ struct ast_event_iterator iterator;
+ int res;
- str_payload = ast_event_get_ie_raw(event, ie_type);
+ for (res = ast_event_iterator_init(&iterator, event); !res; res = ast_event_iterator_next(&iterator)) {
+ if (ast_event_iterator_get_ie_type(&iterator) == ie_type) {
+ return event_iterator_get_ie_raw(&iterator);
+ }
+ }
- return str_payload->hash;
+ return NULL;
}
-const char *ast_event_get_ie_str(const struct ast_event *event, enum ast_event_ie_type ie_type)
+static uint16_t event_iterator_get_ie_raw_payload_len(struct ast_event_iterator *iterator)
{
- const struct ast_event_ie_str_payload *str_payload;
-
- str_payload = ast_event_get_ie_raw(event, ie_type);
-
- return str_payload->str;
+ return ntohs(iterator->ie->ie_payload_len);
}
-const void *ast_event_get_ie_raw(const struct ast_event *event, enum ast_event_ie_type ie_type)
+uint16_t ast_event_get_ie_raw_payload_len(const struct ast_event *event, enum ast_event_ie_type ie_type)
{
struct ast_event_iterator iterator;
- int res = 0;
+ int res;
- for (ast_event_iterator_init(&iterator, event); !res; res = ast_event_iterator_next(&iterator)) {
+ for (res = ast_event_iterator_init(&iterator, event); !res; res = ast_event_iterator_next(&iterator)) {
if (ast_event_iterator_get_ie_type(&iterator) == ie_type) {
- return ast_event_iterator_get_ie_raw(&iterator);
+ return event_iterator_get_ie_raw_payload_len(&iterator);
}
}
- return NULL;
+ return 0;
}
+
int ast_event_append_ie_str(struct ast_event **event, enum ast_event_ie_type ie_type,
const char *str)
{
size_t payload_len;
payload_len = sizeof(*str_payload) + strlen(str);
- str_payload = alloca(payload_len);
+ str_payload = ast_alloca(payload_len);
strcpy(str_payload->str, str);
str_payload->hash = ast_str_hash(str);
const void *data, size_t data_len)
{
struct ast_event_ie *ie;
+ struct ast_event *old_event;
unsigned int extra_len;
uint16_t event_len;
event_len = ntohs((*event)->event_len);
extra_len = sizeof(*ie) + data_len;
- if (!(*event = ast_realloc(*event, event_len + extra_len))) {
+ old_event = *event;
+ *event = ast_realloc(*event, event_len + extra_len);
+ if (!*event) {
+ ast_free(old_event);
return -1;
}
{
va_list ap;
struct ast_event *event;
- enum ast_event_type ie_type;
+ enum ast_event_ie_type ie_type;
struct ast_event_ie_val *ie_val;
AST_LIST_HEAD_NOLOCK_STATIC(ie_vals, ast_event_ie_val);
/* Invalid type */
if (type >= AST_EVENT_TOTAL) {
ast_log(LOG_WARNING, "Someone tried to create an event of invalid "
- "type '%d'!\n", type);
+ "type '%u'!\n", type);
return NULL;
}
va_start(ap, type);
- for (ie_type = va_arg(ap, enum ast_event_type);
+ for (ie_type = va_arg(ap, enum ast_event_ie_type);
ie_type != AST_EVENT_IE_END;
- ie_type = va_arg(ap, enum ast_event_type))
+ ie_type = va_arg(ap, enum ast_event_ie_type))
{
- struct ast_event_ie_val *ie_value = alloca(sizeof(*ie_value));
- int insert = 1;
+ struct ast_event_ie_val *ie_value = ast_alloca(sizeof(*ie_value));
+ int insert = 0;
+
memset(ie_value, 0, sizeof(*ie_value));
ie_value->ie_type = ie_type;
ie_value->ie_pltype = va_arg(ap, enum ast_event_ie_pltype);
+
switch (ie_value->ie_pltype) {
case AST_EVENT_IE_PLTYPE_UINT:
ie_value->payload.uint = va_arg(ap, uint32_t);
+ insert = 1;
break;
case AST_EVENT_IE_PLTYPE_BITFLAGS:
ie_value->payload.uint = va_arg(ap, uint32_t);
+ insert = 1;
break;
case AST_EVENT_IE_PLTYPE_STR:
ie_value->payload.str = va_arg(ap, const char *);
+ insert = 1;
break;
case AST_EVENT_IE_PLTYPE_RAW:
{
void *data = va_arg(ap, void *);
size_t datalen = va_arg(ap, size_t);
- ie_value->payload.raw = alloca(datalen);
+ ie_value->payload.raw = ast_alloca(datalen);
memcpy(ie_value->payload.raw, data, datalen);
ie_value->raw_datalen = datalen;
+ insert = 1;
break;
}
case AST_EVENT_IE_PLTYPE_UNKNOWN:
- insert = 0;
- break;
case AST_EVENT_IE_PLTYPE_EXISTS:
break;
}
if (insert) {
AST_LIST_INSERT_TAIL(&ie_vals, ie_value, entry);
+ } else {
+ ast_log(LOG_WARNING, "Unsupported PLTYPE(%d)\n", ie_value->ie_pltype);
}
}
va_end(ap);
ie_val->payload.raw, ie_val->raw_datalen);
break;
case AST_EVENT_IE_PLTYPE_EXISTS:
- ast_log(LOG_WARNING, "PLTYPE_EXISTS unsupported in event_new\n");
- break;
case AST_EVENT_IE_PLTYPE_UNKNOWN:
- ast_log(LOG_WARNING, "PLTYPE_UNKNOWN passed as an IE type "
- "for a new event\n");
break;
}
+ /* realloc inside one of the append functions failed */
if (!event) {
- break;
+ return NULL;
}
}
if (!ast_event_get_ie_raw(event, AST_EVENT_IE_EID)) {
/* If the event is originating on this server, add the server's
* entity ID to the event. */
- ast_event_append_ie_raw(&event, AST_EVENT_IE_EID, &ast_eid_default, sizeof(ast_eid_default));
+ ast_event_append_eid(&event);
}
return event;
}
-void ast_event_destroy(struct ast_event *event)
-{
- ast_free(event);
-}
-
-static void ast_event_ref_destroy(void *obj)
-{
- struct ast_event_ref *event_ref = obj;
-
- ast_event_destroy(event_ref->event);
-}
-
-static struct ast_event *ast_event_dup(const struct ast_event *event)
-{
- struct ast_event *dup_event;
- uint16_t event_len;
-
- event_len = ast_event_get_size(event);
-
- if (!(dup_event = ast_calloc(1, event_len))) {
- return NULL;
- }
-
- memcpy(dup_event, event, event_len);
-
- return dup_event;
-}
-
-struct ast_event *ast_event_get_cached(enum ast_event_type type, ...)
-{
- va_list ap;
- enum ast_event_ie_type ie_type;
- struct ast_event *dup_event = NULL;
- struct ast_event_ref *cached_event_ref;
- struct ast_event *cache_arg_event;
- struct ast_event_ref tmp_event_ref = {
- .event = NULL,
- };
- struct ao2_container *container = NULL;
-
- if (type >= AST_EVENT_TOTAL) {
- ast_log(LOG_ERROR, "%u is an invalid type!\n", type);
- return NULL;
- }
-
- if (!(container = ast_event_cache[type].container)) {
- ast_log(LOG_ERROR, "%u is not a cached event type\n", type);
- return NULL;
- }
-
- if (!(cache_arg_event = ast_event_new(type, AST_EVENT_IE_END))) {
- return NULL;
- }
-
- va_start(ap, type);
- for (ie_type = va_arg(ap, enum ast_event_type);
- ie_type != AST_EVENT_IE_END;
- ie_type = va_arg(ap, enum ast_event_type))
- {
- enum ast_event_ie_pltype ie_pltype;
-
- ie_pltype = va_arg(ap, enum ast_event_ie_pltype);
-
- switch (ie_pltype) {
- case AST_EVENT_IE_PLTYPE_UINT:
- ast_event_append_ie_uint(&cache_arg_event, ie_type, va_arg(ap, uint32_t));
- break;
- case AST_EVENT_IE_PLTYPE_BITFLAGS:
- ast_event_append_ie_bitflags(&cache_arg_event, ie_type, va_arg(ap, uint32_t));
- break;
- case AST_EVENT_IE_PLTYPE_STR:
- ast_event_append_ie_str(&cache_arg_event, ie_type, va_arg(ap, const char *));
- break;
- case AST_EVENT_IE_PLTYPE_RAW:
- {
- void *data = va_arg(ap, void *);
- size_t datalen = va_arg(ap, size_t);
- ast_event_append_ie_raw(&cache_arg_event, ie_type, data, datalen);
- }
- case AST_EVENT_IE_PLTYPE_EXISTS:
- ast_log(LOG_WARNING, "PLTYPE_EXISTS not supported by this function\n");
- break;
- case AST_EVENT_IE_PLTYPE_UNKNOWN:
- break;
- }
- }
- va_end(ap);
-
- tmp_event_ref.event = cache_arg_event;
-
- cached_event_ref = ao2_find(container, &tmp_event_ref, OBJ_POINTER);
-
- ast_event_destroy(cache_arg_event);
- cache_arg_event = NULL;
-
- if (cached_event_ref) {
- dup_event = ast_event_dup(cached_event_ref->event);
- ao2_ref(cached_event_ref, -1);
- cached_event_ref = NULL;
- }
-
- return dup_event;
-}
-
-static struct ast_event_ref *alloc_event_ref(void)
-{
- return ao2_alloc(sizeof(struct ast_event_ref), ast_event_ref_destroy);
-}
-
-/*! \brief Duplicate an event and add it to the cache
- * \note This assumes this index in to the cache is locked */
-static int attribute_unused ast_event_dup_and_cache(const struct ast_event *event)
-{
- struct ast_event *dup_event;
- struct ast_event_ref *event_ref;
-
- if (!(dup_event = ast_event_dup(event))) {
- return -1;
- }
-
- if (!(event_ref = alloc_event_ref())) {
- ast_event_destroy(dup_event);
- return -1;
- }
-
- event_ref->event = dup_event;
-
- ao2_link(ast_event_cache[ast_event_get_type(event)].container, event_ref);
-
- ao2_ref(event_ref, -1);
-
- return 0;
-}
-
-int ast_event_queue_and_cache(struct ast_event *event)
-{
- struct ao2_container *container;
- struct ast_event_ref tmp_event_ref = {
- .event = event,
- };
-
- if (!(container = ast_event_cache[ast_event_get_type(event)].container)) {
- ast_log(LOG_WARNING, "cache requested for non-cached event type\n");
- goto queue_event;
- }
-
- /* Remove matches from the cache */
- ao2_callback(container, OBJ_POINTER | OBJ_UNLINK | OBJ_MULTIPLE | OBJ_NODATA,
- ast_event_cmp, &tmp_event_ref);
-
-queue_event:
- return ast_event_queue(event);
-}
-
-static int handle_event(void *data)
-{
- struct ast_event_ref *event_ref = data;
- struct ast_event_sub *sub;
- uint16_t host_event_type;
-
- host_event_type = ntohs(event_ref->event->type);
-
- /* Subscribers to this specific event first */
- AST_RWDLLIST_RDLOCK(&ast_event_subs[host_event_type]);
- AST_RWDLLIST_TRAVERSE(&ast_event_subs[host_event_type], sub, entry) {
- struct ast_event_ie_val *ie_val;
- AST_LIST_TRAVERSE(&sub->ie_vals, ie_val, entry) {
- if (!match_ie_val(event_ref->event, ie_val, NULL)) {
- break;
- }
- }
- if (ie_val) {
- continue;
- }
- sub->cb(event_ref->event, sub->userdata);
- }
- AST_RWDLLIST_UNLOCK(&ast_event_subs[host_event_type]);
-
- /* Now to subscribers to all event types */
- AST_RWDLLIST_RDLOCK(&ast_event_subs[AST_EVENT_ALL]);
- AST_RWDLLIST_TRAVERSE(&ast_event_subs[AST_EVENT_ALL], sub, entry) {
- sub->cb(event_ref->event, sub->userdata);
- }
- AST_RWDLLIST_UNLOCK(&ast_event_subs[AST_EVENT_ALL]);
-
- ao2_ref(event_ref, -1);
-
- return 0;
-}
-
-int ast_event_queue(struct ast_event *event)
-{
- struct ast_event_ref *event_ref;
- uint16_t host_event_type;
-
- host_event_type = ntohs(event->type);
-
- /* Invalid type */
- if (host_event_type >= AST_EVENT_TOTAL) {
- ast_log(LOG_WARNING, "Someone tried to queue an event of invalid "
- "type '%d'!\n", host_event_type);
- return -1;
- }
-
- /* If nobody has subscribed to this event type, throw it away now */
- if (ast_event_check_subscriber(host_event_type, AST_EVENT_IE_END)
- == AST_EVENT_SUB_NONE) {
- ast_event_destroy(event);
- ast_log(LOG_NOTICE, "Event destroyed, no subscriber\n");
- return 0;
- }
-
- if (!(event_ref = alloc_event_ref())) {
- return -1;
- }
-
- event_ref->event = event;
-
- return ast_taskprocessor_push(event_dispatcher, handle_event, event_ref);
-}
-
-static int ast_event_hash_mwi(const void *obj, const int flags)
-{
- const struct ast_event *event = obj;
- const char *mailbox = ast_event_get_ie_str(event, AST_EVENT_IE_MAILBOX);
- const char *context = ast_event_get_ie_str(event, AST_EVENT_IE_CONTEXT);
-
- return ast_str_hash_add(context, ast_str_hash(mailbox));
-}
-
-/*!
- * \internal
- * \brief Hash function for AST_EVENT_DEVICE_STATE
- *
- * \param[in] obj an ast_event
- * \param[in] flags unused
- *
- * \return hash value
- */
-static int ast_event_hash_devstate(const void *obj, const int flags)
-{
- const struct ast_event *event = obj;
-
- return ast_str_hash(ast_event_get_ie_str(event, AST_EVENT_IE_DEVICE));
-}
-
-/*!
- * \internal
- * \brief Hash function for AST_EVENT_DEVICE_STATE_CHANGE
- *
- * \param[in] obj an ast_event
- * \param[in] flags unused
- *
- * \return hash value
- */
-static int ast_event_hash_devstate_change(const void *obj, const int flags)
-{
- const struct ast_event *event = obj;
-
- return ast_str_hash(ast_event_get_ie_str(event, AST_EVENT_IE_DEVICE));
-}
-
-static int ast_event_hash(const void *obj, const int flags)
+int ast_event_append_eid(struct ast_event **event)
{
- const struct ast_event_ref *event_ref;
- const struct ast_event *event;
- ao2_hash_fn *hash_fn;
-
- event_ref = obj;
- event = event_ref->event;
-
- if (!(hash_fn = ast_event_cache[ast_event_get_type(event)].hash_fn)) {
- return 0;
- }
-
- return hash_fn(event, flags);
+ return ast_event_append_ie_raw(event, AST_EVENT_IE_EID,
+ &ast_eid_default, sizeof(ast_eid_default));
}
-/*!
- * \internal
- * \brief Compare two events
- *
- * \param[in] obj the first event, as an ast_event_ref
- * \param[in] arg the second event, as an ast_event_ref
- * \param[in] flags unused
- *
- * \pre Both events must be the same type.
- * \pre The event type must be declared as a cached event type in ast_event_cache
- *
- * \details This function takes two events, and determines if they are considered
- * equivalent. The values of information elements specified in the cache arguments
- * for the event type are used to determine if the events are equivalent.
- *
- * \retval 0 No match
- * \retval CMP_MATCH The events are considered equivalent based on the cache arguments
- */
-static int ast_event_cmp(void *obj, void *arg, int flags)
+void ast_event_destroy(struct ast_event *event)
{
- struct ast_event_ref *event_ref, *event_ref2;
- struct ast_event *event, *event2;
- int res = CMP_MATCH;
- int i;
- enum ast_event_ie_type *cache_args;
-
- event_ref = obj;
- event = event_ref->event;
-
- event_ref2 = arg;
- event2 = event_ref2->event;
-
- cache_args = ast_event_cache[ast_event_get_type(event)].cache_args;
-
- for (i = 0; i < ARRAY_LEN(ast_event_cache[0].cache_args) && cache_args[i]; i++) {
- struct ast_event_ie_val ie_val = {
- .ie_type = cache_args[i],
- };
-
- if (!match_ie_val(event, &ie_val, event2)) {
- res = 0;
- break;
- }
- }
-
- return res;
+ ast_free(event);
}
-int ast_event_init(void)
+size_t ast_event_minimum_length(void)
{
- int i;
-
- for (i = 0; i < AST_EVENT_TOTAL; i++) {
- AST_RWDLLIST_HEAD_INIT(&ast_event_subs[i]);
- }
-
- for (i = 0; i < AST_EVENT_TOTAL; i++) {
- if (!ast_event_cache[i].hash_fn) {
- /* This event type is not cached. */
- continue;
- }
-
- if (!(ast_event_cache[i].container = ao2_container_alloc(NUM_CACHE_BUCKETS,
- ast_event_hash, ast_event_cmp))) {
- return -1;
- }
- }
-
- if (!(event_dispatcher = ast_taskprocessor_get("core_event_dispatcher", 0))) {
- return -1;
- }
-
- return 0;
+ return sizeof(struct ast_event);
}
projects / asterisk/asterisk.git / blobdiff