int messages_dispatched;
/*! \brief The ids of the subscribers to this topic */
struct ao2_container *subscribers;
+ /*! \brief Pointer to the topic (NOT refcounted, and must NOT be accessed) */
+ struct stasis_topic *topic;
/*! \brief Name of the topic */
char name[0];
};
struct stasis_topic_statistics *statistics;
#endif
+ /*! Unique incrementing integer for subscriber ids */
+ int subscriber_id;
+
/*! Name of the topic */
char name[0];
};
ao2_cleanup(statistics->subscribers);
}
-static struct stasis_topic_statistics *stasis_topic_statistics_create(const char *name)
+static struct stasis_topic_statistics *stasis_topic_statistics_create(struct stasis_topic *topic)
{
struct stasis_topic_statistics *statistics;
- statistics = ao2_alloc(sizeof(*statistics) + strlen(name) + 1, topic_statistics_destroy);
+ statistics = ao2_alloc(sizeof(*statistics) + strlen(topic->name) + 1, topic_statistics_destroy);
if (!statistics) {
return NULL;
}
return NULL;
}
- strcpy(statistics->name, name); /* SAFE */
+ /* This is strictly used for the pointer address when showing the topic */
+ statistics->topic = topic;
+ strcpy(statistics->name, topic->name); /* SAFE */
ao2_link(topic_statistics, statistics);
return statistics;
res |= AST_VECTOR_INIT(&topic->subscribers, INITIAL_SUBSCRIBERS_MAX);
res |= AST_VECTOR_INIT(&topic->upstream_topics, 0);
#ifdef AST_DEVMODE
- topic->statistics = stasis_topic_statistics_create(name);
+ topic->statistics = stasis_topic_statistics_create(topic);
if (!topic->name || !topic->statistics || res)
#else
if (!topic->name || res)
const char *file;
/*! \brief The function where the subscription originates */
const char *func;
- /*! \brief Name of the topic we subscribed to */
- char *topic;
+ /*! \brief Names of the topics we are subscribed to */
+ struct ao2_container *topics;
/*! \brief The message type that currently took the longest to process */
struct stasis_message_type *highest_time_message_type;
/*! \brief Highest time spent invoking a message */
int uses_threadpool;
/*! \brief The line number where the subscription originates */
int lineno;
+ /*! \brief Pointer to the subscription (NOT refcounted, and must NOT be accessed) */
+ struct stasis_subscription *sub;
/*! \brief Unique ID of the subscription */
char uniqueid[0];
};
/*! \internal */
struct stasis_subscription {
/*! Unique ID for this subscription */
- char uniqueid[AST_UUID_STR_LEN];
+ char *uniqueid;
/*! Topic subscribed to. */
struct stasis_topic *topic;
/*! Mailbox for processing incoming messages. */
* be bad. */
ast_assert(stasis_subscription_is_done(sub));
+ ast_free(sub->uniqueid);
ao2_cleanup(sub->topic);
sub->topic = NULL;
ast_taskprocessor_unreference(sub->mailbox);
}
#ifdef AST_DEVMODE
-static struct stasis_subscription_statistics *stasis_subscription_statistics_create(const char *uniqueid,
- const char *topic, int needs_mailbox, int use_thread_pool, const char *file, int lineno,
+static void subscription_statistics_destroy(void *obj)
+{
+ struct stasis_subscription_statistics *statistics = obj;
+
+ ao2_cleanup(statistics->topics);
+}
+
+static struct stasis_subscription_statistics *stasis_subscription_statistics_create(struct stasis_subscription *sub,
+ int needs_mailbox, int use_thread_pool, const char *file, int lineno,
const char *func)
{
struct stasis_subscription_statistics *statistics;
- size_t uniqueid_len = strlen(uniqueid) + 1;
- statistics = ao2_alloc(sizeof(*statistics) + uniqueid_len + strlen(topic) + 1, NULL);
+ statistics = ao2_alloc(sizeof(*statistics) + strlen(sub->uniqueid) + 1, subscription_statistics_destroy);
if (!statistics) {
return NULL;
}
+ statistics->topics = ast_str_container_alloc(1);
+ if (!statistics->topics) {
+ ao2_ref(statistics, -1);
+ return NULL;
+ }
+
statistics->file = file;
statistics->lineno = lineno;
statistics->func = func;
statistics->uses_mailbox = needs_mailbox;
statistics->uses_threadpool = use_thread_pool;
- strcpy(statistics->uniqueid, uniqueid); /* SAFE */
- statistics->topic = statistics->uniqueid + uniqueid_len;
- strcpy(statistics->topic, topic); /* SAFE */
+ strcpy(statistics->uniqueid, sub->uniqueid); /* SAFE */
+ statistics->sub = sub;
ao2_link(subscription_statistics, statistics);
return statistics;
const char *func)
{
struct stasis_subscription *sub;
+ int ret;
if (!topic) {
return NULL;
if (!sub) {
return NULL;
}
- ast_uuid_generate_str(sub->uniqueid, sizeof(sub->uniqueid));
#ifdef AST_DEVMODE
- sub->statistics = stasis_subscription_statistics_create(sub->uniqueid, topic->name, needs_mailbox,
- use_thread_pool, file, lineno, func);
- if (!sub->statistics) {
+ ret = ast_asprintf(&sub->uniqueid, "%s:%s-%d", file, stasis_topic_name(topic), ast_atomic_fetchadd_int(&topic->subscriber_id, +1));
+ sub->statistics = stasis_subscription_statistics_create(sub, needs_mailbox, use_thread_pool, file, lineno, func);
+ if (ret < 0 || !sub->statistics) {
+ ao2_ref(sub, -1);
+ return NULL;
+ }
+#else
+ ret = ast_asprintf(&sub->uniqueid, "%s-%d", stasis_topic_name(topic), ast_atomic_fetchadd_int(&topic->subscriber_id, +1));
+ if (ret < 0) {
ao2_ref(sub, -1);
return NULL;
}
#ifdef AST_DEVMODE
ast_str_container_add(topic->statistics->subscribers, stasis_subscription_uniqueid(sub));
+ ast_str_container_add(sub->statistics->topics, stasis_topic_name(topic));
#endif
ao2_unlock(topic);
#ifdef AST_DEVMODE
if (!res) {
ast_str_container_remove(topic->statistics->subscribers, stasis_subscription_uniqueid(sub));
+ ast_str_container_remove(sub->statistics->topics, stasis_topic_name(topic));
}
#endif
struct topic_pool_entry {
struct stasis_forward *forward;
struct stasis_topic *topic;
+ char name[0];
};
static void topic_pool_entry_dtor(void *obj)
entry->topic = NULL;
}
-static struct topic_pool_entry *topic_pool_entry_alloc(void)
+static struct topic_pool_entry *topic_pool_entry_alloc(const char *topic_name)
{
- return ao2_alloc_options(sizeof(struct topic_pool_entry), topic_pool_entry_dtor,
- AO2_ALLOC_OPT_LOCK_NOLOCK);
+ struct topic_pool_entry *topic_pool_entry;
+
+ topic_pool_entry = ao2_alloc_options(sizeof(*topic_pool_entry) + strlen(topic_name) + 1,
+ topic_pool_entry_dtor, AO2_ALLOC_OPT_LOCK_NOLOCK);
+ if (!topic_pool_entry) {
+ return NULL;
+ }
+
+ strcpy(topic_pool_entry->name, topic_name); /* Safe */
+
+ return topic_pool_entry;
}
struct stasis_topic_pool {
break;
case OBJ_SEARCH_OBJECT:
object = obj;
- key = stasis_topic_name(object->topic);
+ key = object->name;
break;
default:
/* Hash can only work on something with a full key. */
switch (flags & OBJ_SEARCH_MASK) {
case OBJ_SEARCH_OBJECT:
- right_key = stasis_topic_name(object_right->topic);
+ right_key = object_right->name;
/* Fall through */
case OBJ_SEARCH_KEY:
- cmp = strcasecmp(stasis_topic_name(object_left->topic), right_key);
+ cmp = strcasecmp(object_left->name, right_key);
break;
case OBJ_SEARCH_PARTIAL_KEY:
/* Not supported by container */
{
RAII_VAR(struct topic_pool_entry *, topic_pool_entry, NULL, ao2_cleanup);
SCOPED_AO2LOCK(topic_container_lock, pool->pool_container);
+ char *new_topic_name;
+ int ret;
topic_pool_entry = ao2_find(pool->pool_container, topic_name, OBJ_SEARCH_KEY | OBJ_NOLOCK);
if (topic_pool_entry) {
return topic_pool_entry->topic;
}
- topic_pool_entry = topic_pool_entry_alloc();
+ topic_pool_entry = topic_pool_entry_alloc(topic_name);
if (!topic_pool_entry) {
return NULL;
}
- topic_pool_entry->topic = stasis_topic_create(topic_name);
+ /* To provide further detail and to ensure that the topic is unique within the scope of the
+ * system we prefix it with the pooling topic name, which should itself already be unique.
+ */
+ ret = ast_asprintf(&new_topic_name, "%s/%s", stasis_topic_name(pool->pool_topic), topic_name);
+ if (ret < 0) {
+ return NULL;
+ }
+
+ topic_pool_entry->topic = stasis_topic_create(new_topic_name);
+ ast_free(new_topic_name);
if (!topic_pool_entry->topic) {
return NULL;
}
#ifdef AST_DEVMODE
+AO2_STRING_FIELD_SORT_FN(stasis_subscription_statistics, uniqueid);
+
/*!
* \internal
* \brief CLI command implementation for 'stasis statistics show subscriptions'
*/
static char *statistics_show_subscriptions(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
+ struct ao2_container *sorted_subscriptions;
struct ao2_iterator iter;
struct stasis_subscription_statistics *statistics;
int count = 0;
return CLI_SHOWUSAGE;
}
+ sorted_subscriptions = ao2_container_alloc_rbtree(AO2_ALLOC_OPT_LOCK_NOLOCK, 0,
+ stasis_subscription_statistics_sort_fn, NULL);
+ if (!sorted_subscriptions) {
+ ast_cli(a->fd, "Could not create container for sorting subscription statistics\n");
+ return CLI_SUCCESS;
+ }
+
+ if (ao2_container_dup(sorted_subscriptions, subscription_statistics, 0)) {
+ ao2_ref(sorted_subscriptions, -1);
+ ast_cli(a->fd, "Could not sort subscription statistics\n");
+ return CLI_SUCCESS;
+ }
+
ast_cli(a->fd, "\n" FMT_HEADERS, "Subscription", "Dropped", "Passed", "Lowest Invoke", "Highest Invoke");
- iter = ao2_iterator_init(subscription_statistics, 0);
+ iter = ao2_iterator_init(sorted_subscriptions, 0);
while ((statistics = ao2_iterator_next(&iter))) {
ast_cli(a->fd, FMT_FIELDS, statistics->uniqueid, statistics->messages_dropped, statistics->messages_passed,
statistics->lowest_time_invoked, statistics->highest_time_invoked);
}
ao2_iterator_destroy(&iter);
+ ao2_ref(sorted_subscriptions, -1);
+
ast_cli(a->fd, FMT_FIELDS2, "Total", dropped, passed);
ast_cli(a->fd, "\n%d subscriptions\n\n", count);
static char *statistics_show_subscription(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct stasis_subscription_statistics *statistics;
+ struct ao2_iterator i;
+ char *name;
switch (cmd) {
case CLI_INIT:
}
ast_cli(a->fd, "Subscription: %s\n", statistics->uniqueid);
- ast_cli(a->fd, "Topic: %s\n", statistics->topic);
+ ast_cli(a->fd, "Pointer Address: %p\n", statistics->sub);
ast_cli(a->fd, "Source filename: %s\n", S_OR(statistics->file, "<unavailable>"));
ast_cli(a->fd, "Source line number: %d\n", statistics->lineno);
ast_cli(a->fd, "Source function: %s\n", S_OR(statistics->func, "<unavailable>"));
}
ao2_unlock(statistics);
+ ast_cli(a->fd, "Number of topics: %d\n", ao2_container_count(statistics->topics));
+
+ ast_cli(a->fd, "Subscribed topics:\n");
+ i = ao2_iterator_init(statistics->topics, 0);
+ while ((name = ao2_iterator_next(&i))) {
+ ast_cli(a->fd, "\t%s\n", name);
+ ao2_ref(name, -1);
+ }
+ ao2_iterator_destroy(&i);
+
ao2_ref(statistics, -1);
return CLI_SUCCESS;
}
+AO2_STRING_FIELD_SORT_FN(stasis_topic_statistics, name);
+
/*!
* \internal
* \brief CLI command implementation for 'stasis statistics show topics'
*/
static char *statistics_show_topics(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
+ struct ao2_container *sorted_topics;
struct ao2_iterator iter;
struct stasis_topic_statistics *statistics;
int count = 0;
int not_dispatched = 0;
int dispatched = 0;
-#define FMT_HEADERS "%-64s %10s %10s %16s %16s\n"
-#define FMT_FIELDS "%-64s %10d %10d %16ld %16ld\n"
-#define FMT_FIELDS2 "%-64s %10d %10d\n"
+#define FMT_HEADERS "%-64s %10s %10s %10s %16s %16s\n"
+#define FMT_FIELDS "%-64s %10d %10d %10d %16ld %16ld\n"
+#define FMT_FIELDS2 "%-64s %10s %10d %10d\n"
switch (cmd) {
case CLI_INIT:
return CLI_SHOWUSAGE;
}
- ast_cli(a->fd, "\n" FMT_HEADERS, "Topic", "Dropped", "Dispatched", "Lowest Dispatch", "Highest Dispatch");
+ sorted_topics = ao2_container_alloc_rbtree(AO2_ALLOC_OPT_LOCK_NOLOCK, 0,
+ stasis_topic_statistics_sort_fn, NULL);
+ if (!sorted_topics) {
+ ast_cli(a->fd, "Could not create container for sorting topic statistics\n");
+ return CLI_SUCCESS;
+ }
+
+ if (ao2_container_dup(sorted_topics, topic_statistics, 0)) {
+ ao2_ref(sorted_topics, -1);
+ ast_cli(a->fd, "Could not sort topic statistics\n");
+ return CLI_SUCCESS;
+ }
+
+ ast_cli(a->fd, "\n" FMT_HEADERS, "Topic", "Subscribers", "Dropped", "Dispatched", "Lowest Dispatch", "Highest Dispatch");
- iter = ao2_iterator_init(topic_statistics, 0);
+ iter = ao2_iterator_init(sorted_topics, 0);
while ((statistics = ao2_iterator_next(&iter))) {
- ast_cli(a->fd, FMT_FIELDS, statistics->name, statistics->messages_not_dispatched, statistics->messages_dispatched,
+ ast_cli(a->fd, FMT_FIELDS, statistics->name, ao2_container_count(statistics->subscribers),
+ statistics->messages_not_dispatched, statistics->messages_dispatched,
statistics->lowest_time_dispatched, statistics->highest_time_dispatched);
not_dispatched += statistics->messages_not_dispatched;
dispatched += statistics->messages_dispatched;
}
ao2_iterator_destroy(&iter);
- ast_cli(a->fd, FMT_FIELDS2, "Total", not_dispatched, dispatched);
+ ao2_ref(sorted_topics, -1);
+
+ ast_cli(a->fd, FMT_FIELDS2, "Total", "", not_dispatched, dispatched);
ast_cli(a->fd, "\n%d topics\n\n", count);
#undef FMT_HEADERS
}
ast_cli(a->fd, "Topic: %s\n", statistics->name);
+ ast_cli(a->fd, "Pointer Address: %p\n", statistics->topic);
ast_cli(a->fd, "Number of messages published that went to no subscriber: %d\n", statistics->messages_not_dispatched);
ast_cli(a->fd, "Number of messages that went to at least one subscriber: %d\n", statistics->messages_dispatched);
ast_cli(a->fd, "Lowest amount of time (in milliseconds) spent dispatching message: %ld\n", statistics->lowest_time_dispatched);