* Disable on the tracer side a ust app event for the session and channel.
*/
static int disable_ust_app_event(struct ust_app_session *ua_sess,
- struct ust_app_channel *ua_chan, struct ust_app_event *ua_event,
- struct ust_app *app)
+ struct ust_app_event *ua_event, struct ust_app *app)
{
int ret;
hashtable_add_unique(ua_chan->events, &ua_event->node);
+ DBG2("UST app create event %s for PID %d completed",
+ ua_event->name, app->key.pid);
+
end:
error:
return ret;
while ((ret = ustctl_tracepoint_list_get(app->key.sock, handle,
&iter)) != -ENOENT) {
- /* TODO : get loglevel too */
if (count >= nbmem) {
DBG2("Reallocating event list from %zu to %zu entries", nbmem,
2 * nbmem);
}
}
memcpy(tmp[count].name, iter.name, LTTNG_UST_SYM_NAME_LEN);
+ memcpy(tmp[count].loglevel, iter.loglevel, LTTNG_UST_SYM_NAME_LEN);
+ tmp[count].loglevel_value = iter.loglevel_value;
tmp[count].type = LTTNG_UST_TRACEPOINT;
tmp[count].pid = app->key.pid;
tmp[count].enabled = -1;
}
ua_event = caa_container_of(ua_event_node, struct ust_app_event, node);
- ret = disable_ust_app_event(ua_sess, ua_chan, ua_event, app);
+ ret = disable_ust_app_event(ua_sess, ua_event, app);
if (ret < 0) {
/* XXX: Report error someday... */
continue;
/* Disable each events of channel */
cds_lfht_for_each_entry(ua_chan->events, &uiter, ua_event, node) {
- ret = disable_ust_app_event(ua_sess, ua_chan, ua_event, app);
+ ret = disable_ust_app_event(ua_sess, ua_event, app);
if (ret < 0) {
/* XXX: Report error someday... */
continue;
ua_chan = caa_container_of(ua_chan_node, struct ust_app_channel, node);
- ua_event_node = hashtable_lookup(ua_sess->channels,
+ ua_event_node = hashtable_lookup(ua_chan->events,
(void*)uevent->attr.name, strlen(uevent->attr.name), &uiter);
if (ua_event_node == NULL) {
- DBG3("UST app enable event %s not found. Skipping app",
- uevent->attr.name);
+ DBG3("UST app enable event %s not found for app PID %d."
+ "Skipping app", uevent->attr.name, app->key.pid);
continue;
}
ua_event = caa_container_of(ua_event_node, struct ust_app_event, node);
ret = enable_ust_app_event(ua_sess, ua_event, app);
if (ret < 0) {
- /* XXX: Report error someday... */
- continue;
+ goto error;
}
}
+error:
rcu_read_unlock();
-
return ret;
}
rcu_read_unlock();
return ret;
}
+
+/*
+ * Enable event for a channel from a UST session for a specific PID.
+ */
+int ust_app_enable_event_pid(struct ltt_ust_session *usess,
+ struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent, pid_t pid)
+{
+ int ret = 0;
+ struct cds_lfht_iter iter;
+ struct cds_lfht_node *ua_chan_node, *ua_event_node;
+ struct ust_app *app;
+ struct ust_app_session *ua_sess;
+ struct ust_app_channel *ua_chan;
+ struct ust_app_event *ua_event;
+
+ DBG("UST app enabling event %s for PID %d", uevent->attr.name, pid);
+
+ rcu_read_lock();
+
+ app = ust_app_find_by_pid(pid);
+ if (app == NULL) {
+ ERR("UST app enable event per PID %d not found", pid);
+ ret = -1;
+ goto error;
+ }
+
+ ua_sess = lookup_session_by_app(usess, app);
+ /* If ua_sess is NULL, there is a code flow error */
+ assert(ua_sess);
+
+ /* Lookup channel in the ust app session */
+ ua_chan_node = hashtable_lookup(ua_sess->channels, (void *)uchan->name,
+ strlen(uchan->name), &iter);
+ /* If the channel is not found, there is a code flow error */
+ assert(ua_chan_node);
+
+ ua_chan = caa_container_of(ua_chan_node, struct ust_app_channel, node);
+
+ ua_event_node = hashtable_lookup(ua_chan->events,
+ (void*)uevent->attr.name, strlen(uevent->attr.name), &iter);
+ if (ua_event_node == NULL) {
+ ret = create_ust_app_event(ua_sess, ua_chan, uevent, app);
+ if (ret < 0) {
+ goto error;
+ }
+ } else {
+ ua_event = caa_container_of(ua_event_node, struct ust_app_event, node);
+
+ ret = enable_ust_app_event(ua_sess, ua_event, app);
+ if (ret < 0) {
+ goto error;
+ }
+ }
+
+error:
+ rcu_read_unlock();
+ return ret;
+}
+
+/*
+ * Disable event for a channel from a UST session for a specific PID.
+ */
+int ust_app_disable_event_pid(struct ltt_ust_session *usess,
+ struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent, pid_t pid)
+{
+ int ret = 0;
+ struct cds_lfht_iter iter;
+ struct cds_lfht_node *ua_chan_node, *ua_event_node;
+ struct ust_app *app;
+ struct ust_app_session *ua_sess;
+ struct ust_app_channel *ua_chan;
+ struct ust_app_event *ua_event;
+
+ DBG("UST app disabling event %s for PID %d", uevent->attr.name, pid);
+
+ rcu_read_lock();
+
+ app = ust_app_find_by_pid(pid);
+ if (app == NULL) {
+ ERR("UST app disable event per PID %d not found", pid);
+ ret = -1;
+ goto error;
+ }
+
+ ua_sess = lookup_session_by_app(usess, app);
+ /* If ua_sess is NULL, there is a code flow error */
+ assert(ua_sess);
+
+ /* Lookup channel in the ust app session */
+ ua_chan_node = hashtable_lookup(ua_sess->channels, (void *)uchan->name,
+ strlen(uchan->name), &iter);
+ if (ua_chan_node == NULL) {
+ /* Channel does not exist, skip disabling */
+ goto error;
+ }
+ ua_chan = caa_container_of(ua_chan_node, struct ust_app_channel, node);
+
+ ua_event_node = hashtable_lookup(ua_chan->events,
+ (void*)uevent->attr.name, strlen(uevent->attr.name), &iter);
+ if (ua_event_node == NULL) {
+ /* Event does not exist, skip disabling */
+ goto error;
+ }
+ ua_event = caa_container_of(ua_event_node, struct ust_app_event, node);
+
+ ret = disable_ust_app_event(ua_sess, ua_event, app);
+ if (ret < 0) {
+ goto error;
+ }
+
+error:
+ rcu_read_unlock();
+ return ret;
+}
projects / lttng-tools.git / blobdiff