/*
* Send file descriptor to consumer via sock.
+ *
+ * The consumer socket lock must be held by the caller.
*/
int consumer_send_fds(struct consumer_socket *sock, int *fds, size_t nb_fd)
{
assert(fds);
assert(sock);
assert(nb_fd > 0);
+ assert(pthread_mutex_trylock(sock->lock) == EBUSY);
ret = lttcomm_send_fds_unix_sock(*sock->fd_ptr, fds, nb_fd);
if (ret < 0) {
}
ret = consumer_recv_status_reply(sock);
-
error:
return ret;
}
/*
* Consumer send communication message structure to consumer.
+ *
+ * The consumer socket lock must be held by the caller.
*/
int consumer_send_msg(struct consumer_socket *sock,
struct lttcomm_consumer_msg *msg)
assert(msg);
assert(sock);
+ assert(pthread_mutex_trylock(sock->lock) == EBUSY);
ret = consumer_socket_send(sock, msg, sizeof(struct lttcomm_consumer_msg));
if (ret < 0) {
/*
* Consumer send channel communication message structure to consumer.
+ *
+ * The consumer socket lock must be held by the caller.
*/
int consumer_send_channel(struct consumer_socket *sock,
struct lttcomm_consumer_msg *msg)
unsigned int switch_timer_interval,
unsigned int read_timer_interval,
unsigned int live_timer_interval,
+ unsigned int monitor_timer_interval,
int output,
int type,
uint64_t session_id,
uint64_t session_id_per_pid,
unsigned int monitor,
uint32_t ust_app_uid,
+ int64_t blocking_timeout,
const char *root_shm_path,
const char *shm_path)
{
msg->u.ask_channel.switch_timer_interval = switch_timer_interval;
msg->u.ask_channel.read_timer_interval = read_timer_interval;
msg->u.ask_channel.live_timer_interval = live_timer_interval;
+ msg->u.ask_channel.monitor_timer_interval = monitor_timer_interval;
msg->u.ask_channel.output = output;
msg->u.ask_channel.type = type;
msg->u.ask_channel.session_id = session_id;
msg->u.ask_channel.tracefile_count = tracefile_count;
msg->u.ask_channel.monitor = monitor;
msg->u.ask_channel.ust_app_uid = ust_app_uid;
+ msg->u.ask_channel.blocking_timeout = blocking_timeout;
memcpy(msg->u.ask_channel.uuid, uuid, sizeof(msg->u.ask_channel.uuid));
uint64_t tracefile_size,
uint64_t tracefile_count,
unsigned int monitor,
- unsigned int live_timer_interval)
+ unsigned int live_timer_interval,
+ unsigned int monitor_timer_interval)
{
assert(msg);
msg->u.channel.tracefile_count = tracefile_count;
msg->u.channel.monitor = monitor;
msg->u.channel.live_timer_interval = live_timer_interval;
+ msg->u.channel.monitor_timer_interval = monitor_timer_interval;
strncpy(msg->u.channel.pathname, pathname,
sizeof(msg->u.channel.pathname));
/*
* Send relayd socket to consumer associated with a session name.
*
+ * The consumer socket lock must be held by the caller.
+ *
* On success return positive value. On error, negative value.
*/
int consumer_send_relayd_socket(struct consumer_socket *consumer_sock,
return ret;
}
+int consumer_send_channel_monitor_pipe(struct consumer_socket *consumer_sock,
+ int pipe)
+{
+ int ret;
+ struct lttcomm_consumer_msg msg;
+
+ /* Code flow error. Safety net. */
+
+ memset(&msg, 0, sizeof(msg));
+ msg.cmd_type = LTTNG_CONSUMER_SET_CHANNEL_MONITOR_PIPE;
+
+ pthread_mutex_lock(consumer_sock->lock);
+ DBG3("Sending set_channel_monitor_pipe command to consumer");
+ ret = consumer_send_msg(consumer_sock, &msg);
+ if (ret < 0) {
+ goto error;
+ }
+
+ DBG3("Sending channel monitoring pipe %d to consumer on socket %d",
+ pipe, *consumer_sock->fd_ptr);
+ ret = consumer_send_fds(consumer_sock, &pipe, 1);
+ if (ret < 0) {
+ goto error;
+ }
+
+ DBG2("Channel monitoring pipe successfully sent");
+error:
+ pthread_mutex_unlock(consumer_sock->lock);
+ return ret;
+}
+
/*
* Set consumer subdirectory using the session name and a generated datetime if
* needed. This is appended to the current subdirectory.
}
health_code_update();
+ pthread_mutex_lock(socket->lock);
ret = consumer_send_msg(socket, &msg);
+ pthread_mutex_unlock(socket->lock);
if (ret < 0) {
goto error;
}
rcu_read_unlock();
return ret;
}
+
+int consumer_clear_channel(struct consumer_socket *socket, uint64_t key,
+ struct consumer_output *output)
+{
+ int ret;
+ struct lttcomm_consumer_msg msg;
+
+ assert(socket);
+
+ DBG("Consumer clear channel %" PRIu64, key);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.cmd_type = LTTNG_CONSUMER_CLEAR_CHANNEL;
+ msg.u.clear_channel.key = key;
+
+ health_code_update();
+
+ pthread_mutex_lock(socket->lock);
+ ret = consumer_send_msg(socket, &msg);
+ if (ret < 0) {
+ goto error_socket;
+ }
+
+error_socket:
+ pthread_mutex_unlock(socket->lock);
+
+ health_code_update();
+ return ret;
+}
+
+static
+int consumer_msg_clear_session(struct consumer_socket *socket, uint64_t session_id,
+ struct consumer_output *output)
+{
+ int ret;
+ struct lttcomm_consumer_msg msg;
+
+ assert(socket);
+
+ DBG("Consumer clear session %" PRIu64, session_id);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.cmd_type = LTTNG_CONSUMER_CLEAR_SESSION;
+ msg.u.clear_session.session_id = session_id;
+
+ health_code_update();
+
+ pthread_mutex_lock(socket->lock);
+ ret = consumer_send_msg(socket, &msg);
+ if (ret < 0) {
+ goto error_socket;
+ }
+
+error_socket:
+ pthread_mutex_unlock(socket->lock);
+
+ health_code_update();
+ return ret;
+}
+
+int consumer_clear_session(struct ltt_session *session)
+{
+ struct ltt_ust_session *usess = session->ust_session;
+ struct ltt_kernel_session *ksess = session->kernel_session;
+ int ret;
+
+ rcu_read_lock();
+ if (ksess) {
+ struct consumer_socket *socket;
+ struct lttng_ht_iter iter;
+
+ cds_lfht_for_each_entry(ksess->consumer->socks->ht, &iter.iter,
+ socket, node.node) {
+ ret = consumer_msg_clear_session(socket, session->id,
+ ksess->consumer);
+ if (ret < 0) {
+ goto error;
+ }
+ }
+ }
+ if (usess) {
+ struct consumer_socket *socket;
+ struct lttng_ht_iter iter;
+
+ cds_lfht_for_each_entry(usess->consumer->socks->ht, &iter.iter,
+ socket, node.node) {
+ ret = consumer_msg_clear_session(socket, session->id,
+ usess->consumer);
+ if (ret < 0) {
+ goto error;
+ }
+ }
+ }
+ rcu_read_unlock();
+ return 0;
+error:
+ rcu_read_unlock();
+ return ret;
+}
projects / lttng-tools.git / blobdiff