-
-/*
- * Create UST channel and enable it on the tracer.
- */
-int channel_ust_create(struct ltt_ust_session *usess,
- struct lttng_channel *attr)
-{
- int ret;
- struct ltt_ust_channel *uchan;
- //struct lttng_ust_channel_attr uattr;
- //struct object_data *obj;
-
- uchan = trace_ust_find_channel_by_name(usess->domain_global.channels,
- attr->name);
- if (uchan == NULL) {
- uchan = trace_ust_create_channel(attr, usess->pathname);
- if (uchan == NULL) {
- ret = LTTCOMM_UST_CHAN_FAIL;
- goto error;
- }
- rcu_read_lock();
- hashtable_add_unique(usess->domain_global.channels, &uchan->node);
- rcu_read_unlock();
- } else {
- ret = LTTCOMM_UST_CHAN_EXIST;
- goto error;
- }
-
- /* TODO: NOTIFY ust application to update */
- /*
- ret = ustctl_create_channel(sock, usession->handle, &uattr, &obj);
- if (ret < 0) {
- ret = LTTCOMM_UST_CHAN_FAIL;
- goto error;
- }
- */
-
- /*
- uchan->attr.overwrite = uattr.overwrite;
- uchan->attr.subbuf_size = uattr.subbuf_size;
- uchan->attr.num_subbuf = uattr.num_subbuf;
- uchan->attr.switch_timer_interval = uattr.switch_timer_interval;
- uchan->attr.read_timer_interval = uattr.read_timer_interval;
- uchan->attr.output = uattr.output;
- uchan->handle = obj->handle;
- uchan->attr.shm_fd = obj->shm_fd;
- uchan->attr.wait_fd = obj->wait_fd;
- uchan->attr.memory_map_size = obj->memory_map_size;
- uchan->obj = obj;
- */
-
- /* Add channel to session */
- //rcu_read_lock();
- //cds_list_add(&uchan->list, &usession->channels.head);
- //usession->channels.count++;
- //rcu_read_unlock();
-
- //DBG2("Channel %s UST create successfully for sock:%d", uchan->name, sock);
-
- ret = LTTCOMM_OK;
-
-error:
- return ret;
-}
-
-/*
- * Enable UST channel on the tracer.
- */
-int channel_ust_enable(struct ltt_ust_session *usession,
- struct ltt_ust_channel *uchan, int sock)
-{
- int ret = LTTCOMM_OK;
-#ifdef DISABLE
- struct object_data obj;
-
- obj.shm_fd = uchan->attr.shm_fd;
- obj.wait_fd = uchan->attr.wait_fd;
- obj.memory_map_size = uchan->attr.memory_map_size;
- ret = ustctl_enable(sock, &obj);
- if (ret < 0) {
- ret = LTTCOMM_UST_CHAN_FAIL;
- goto end;
- }
- ret = LTTCOMM_OK;
-end:
-#endif
- return ret;
-}
-
-/*
- * Disable UST channel on the tracer.
- */
-int channel_ust_disable(struct ltt_ust_session *usession,
- struct ltt_ust_channel *uchan, int sock)
-{
- int ret = LTTCOMM_OK;
-#ifdef DISABLE
- struct object_data obj;
-
- obj.shm_fd = uchan->attr.shm_fd;
- obj.wait_fd = uchan->attr.wait_fd;
- obj.memory_map_size = uchan->attr.memory_map_size;
- ret = ustctl_disable(sock, &obj);
- if (ret < 0) {
- ret = LTTCOMM_UST_CHAN_FAIL;
- goto end;
- }
- ret = LTTCOMM_OK;
-end:
-#endif
- return ret;
-}