#include "afb-hook.h"
#include "verbose.h"
#include "jobs.h"
+#include "uuid.h"
struct afb_evt_watch;
};
/*
- * structure for job of broadcasting string events
+ * structure for job of broadcasting events
*/
-struct job_string
+struct job_broadcast
{
/** object atached to the event */
struct json_object *object;
+ /** the uuid of the event */
+ uuid_binary_t uuid;
+
+ /** remaining hop */
+ uint8_t hop;
+
/** name of the event to broadcast */
char event[];
};
static int event_id_counter = 0;
static int event_id_wrapped = 0;
+/* head of uniqueness of events */
+#if !defined(EVENT_BROADCAST_HOP_MAX)
+# define EVENT_BROADCAST_HOP_MAX 10
+#endif
+#if !defined(EVENT_BROADCAST_MEMORY_COUNT)
+# define EVENT_BROADCAST_MEMORY_COUNT 8
+#endif
+
+#if EVENT_BROADCAST_MEMORY_COUNT
+static struct {
+ pthread_mutex_t mutex;
+ uint8_t base;
+ uint8_t count;
+ uuid_binary_t uuids[EVENT_BROADCAST_MEMORY_COUNT];
+} uniqueness = {
+ .mutex = PTHREAD_MUTEX_INITIALIZER,
+ .base = 0,
+ .count = 0
+};
+#endif
+
/*
* Create structure for job of broadcasting string 'event' with 'object'
* Returns the created structure or NULL if out of memory
*/
-static struct job_string *make_job_string(const char *event, struct json_object *object)
+static struct job_broadcast *make_job_broadcast(const char *event, struct json_object *object, const uuid_binary_t uuid, uint8_t hop)
{
size_t sz = 1 + strlen(event);
- struct job_string *js = malloc(sz + sizeof *js);
- if (js) {
- js->object = object;
- memcpy(js->event, event, sz);
+ struct job_broadcast *jb = malloc(sz + sizeof *jb);
+ if (jb) {
+ jb->object = object;
+ memcpy(jb->uuid, uuid, sizeof jb->uuid);
+ jb->hop = hop;
+ memcpy(jb->event, event, sz);
}
- return js;
+ return jb;
}
/*
- * Destroy structure 'js' for job of broadcasting string events
+ * Destroy structure 'jb' for job of broadcasting string events
*/
-static void destroy_job_string(struct job_string *js)
+static void destroy_job_broadcast(struct job_broadcast *jb)
{
- json_object_put(js->object);
- free(js);
+ json_object_put(jb->object);
+ free(jb);
}
/*
/*
* Broadcasts the 'event' of 'id' with its 'object'
*/
-static void broadcast(const char *event, struct json_object *object, int id)
+static void broadcast(struct job_broadcast *jb)
{
struct afb_evt_listener *listener;
listener = listeners;
while(listener) {
if (listener->itf->broadcast != NULL)
- listener->itf->broadcast(listener->closure, event, id, json_object_get(object));
+ listener->itf->broadcast(listener->closure, jb->event, json_object_get(jb->object), jb->uuid, jb->hop);
listener = listener->next;
}
pthread_rwlock_unlock(&listeners_rwlock);
/*
* Jobs callback for broadcasting string asynchronously
*/
-static void broadcast_job_string(int signum, void *closure)
+static void broadcast_job(int signum, void *closure)
{
- struct job_string *js = closure;
+ struct job_broadcast *jb = closure;
if (signum == 0)
- broadcast(js->event, js->object, 0);
- destroy_job_string(js);
-}
-
-/*
- * Jobs callback for broadcasting evtid asynchronously
- */
-static void broadcast_job_evtid(int signum, void *closure)
-{
- struct job_evtid *je = closure;
-
- if (signum == 0)
- broadcast(je->evtid->fullname, je->object, je->evtid->id);
- destroy_job_evtid(je);
+ broadcast(jb);
+ destroy_job_broadcast(jb);
}
/*
* Broadcasts the string 'event' with its 'object'
*/
-static int broadcast_string(const char *event, struct json_object *object)
+static int unhooked_broadcast(const char *event, struct json_object *object, const uuid_binary_t uuid, uint8_t hop)
{
- struct job_string *js;
+ uuid_binary_t local_uuid;
+ struct job_broadcast *jb;
int rc;
+#if EVENT_BROADCAST_MEMORY_COUNT
+ int iter, count;
+#endif
+
+ /* check if lately sent */
+ if (!uuid) {
+ uuid_new_binary(local_uuid);
+ uuid = local_uuid;
+ hop = EVENT_BROADCAST_HOP_MAX;
+#if EVENT_BROADCAST_MEMORY_COUNT
+ pthread_mutex_lock(&uniqueness.mutex);
+ } else {
+ pthread_mutex_lock(&uniqueness.mutex);
+ iter = (int)uniqueness.base;
+ count = (int)uniqueness.count;
+ while (count) {
+ if (0 == memcmp(uuid, uniqueness.uuids[iter], sizeof(uuid_binary_t))) {
+ pthread_mutex_unlock(&uniqueness.mutex);
+ return 0;
+ }
+ if (++iter == EVENT_BROADCAST_MEMORY_COUNT)
+ iter = 0;
+ count--;
+ }
+ }
+ iter = (int)uniqueness.base;
+ if (uniqueness.count < EVENT_BROADCAST_MEMORY_COUNT)
+ iter += (int)(uniqueness.count++);
+ else if (++uniqueness.base == EVENT_BROADCAST_MEMORY_COUNT)
+ uniqueness.base = 0;
+ memcpy(uniqueness.uuids[iter], uuid, sizeof(uuid_binary_t));
+ pthread_mutex_unlock(&uniqueness.mutex);
+#else
+ }
+#endif
- js = make_job_string(event, object);
- if (js == NULL) {
+ /* create the structure for the job */
+ jb = make_job_broadcast(event, object, uuid, hop);
+ if (jb == NULL) {
ERROR("Cant't create broadcast string job item for %s(%s)",
event, json_object_to_json_string(object));
json_object_put(object);
return -1;
}
- rc = jobs_queue(BROADCAST_JOB_GROUP, 0, broadcast_job_string, js);
+ /* queue the job */
+ rc = jobs_queue(BROADCAST_JOB_GROUP, 0, broadcast_job, jb);
if (rc) {
ERROR("cant't queue broadcast string job item for %s(%s)",
event, json_object_to_json_string(object));
- destroy_job_string(js);
- }
- return rc;
-}
-
-/*
- * Broadcasts the 'evtid' with its 'object'
- */
-static int broadcast_evtid(struct afb_evtid *evtid, struct json_object *object)
-{
- struct job_evtid *je;
- int rc;
-
- je = make_job_evtid(evtid, object);
- if (je == NULL) {
- ERROR("Cant't create broadcast evtid job item for %s(%s)",
- evtid->fullname, json_object_to_json_string(object));
- json_object_put(object);
- return -1;
- }
-
- rc = jobs_queue(BROADCAST_JOB_GROUP, 0, broadcast_job_evtid, je);
- if (rc) {
- ERROR("cant't queue broadcast evtid job item for %s(%s)",
- evtid->fullname, json_object_to_json_string(object));
- destroy_job_evtid(je);
+ destroy_job_broadcast(jb);
}
return rc;
}
*/
int afb_evt_evtid_broadcast(struct afb_evtid *evtid, struct json_object *object)
{
- return broadcast_evtid(evtid, object);
+ return unhooked_broadcast(evtid->fullname, object, NULL, 0);
}
/*
if (evtid->hookflags & afb_hook_flag_evt_broadcast_before)
afb_hook_evt_broadcast_before(evtid->fullname, evtid->id, object);
- result = broadcast_evtid(evtid, object);
+ result = afb_evt_evtid_broadcast(evtid, object);
if (evtid->hookflags & afb_hook_flag_evt_broadcast_after)
afb_hook_evt_broadcast_after(evtid->fullname, evtid->id, object, result);
return result;
}
-/*
- * Broadcasts the 'event' with its 'object'
- * 'object' is released (like json_object_put)
- * Returns the count of listener having receive the event.
- */
-int afb_evt_broadcast(const char *event, struct json_object *object)
+int afb_evt_rebroadcast(const char *event, struct json_object *object, const uuid_binary_t uuid, uint8_t hop)
{
int result;
+#if WITH_AFB_HOOK
json_object_get(object);
-
afb_hook_evt_broadcast_before(event, 0, object);
- result = broadcast_string(event, object);
- afb_hook_evt_broadcast_after(event, 0, object, result);
+#endif
- json_object_put(object);
+ result = unhooked_broadcast(event, object, uuid, hop);
+#if WITH_AFB_HOOK
+ afb_hook_evt_broadcast_after(event, 0, object, result);
+ json_object_put(object);
+#endif
return result;
}
+/*
+ * Broadcasts the 'event' with its 'object'
+ * 'object' is released (like json_object_put)
+ * Returns the count of listener having receive the event.
+ */
+int afb_evt_broadcast(const char *event, struct json_object *object)
+{
+ return afb_evt_rebroadcast(event, object, NULL, 0);
+}
+
/*
* Pushes the event 'evtid' with 'obj' to its listeners
* Returns the count of listener that received the event.
Code Review / src / app-framework-binder.git / blobdiff