* Create a socket to the relayd using the URI.
*
* On success, the relayd_sock pointer is set to the created socket.
- * Else, it's stays untouched and a lttcomm error code is returned.
+ * Else, it remains untouched and an LTTng error code is returned.
*/
-static int create_connect_relayd(struct lttng_uri *uri,
+static enum lttng_error_code create_connect_relayd(struct lttng_uri *uri,
struct lttcomm_relayd_sock **relayd_sock,
struct consumer_output *consumer)
{
int ret;
+ enum lttng_error_code status = LTTNG_OK;
struct lttcomm_relayd_sock *rsock;
rsock = lttcomm_alloc_relayd_sock(uri, RELAYD_VERSION_COMM_MAJOR,
RELAYD_VERSION_COMM_MINOR);
if (!rsock) {
- ret = LTTNG_ERR_FATAL;
+ status = LTTNG_ERR_FATAL;
goto error;
}
health_poll_exit();
if (ret < 0) {
ERR("Unable to reach lttng-relayd");
- ret = LTTNG_ERR_RELAYD_CONNECT_FAIL;
+ status = LTTNG_ERR_RELAYD_CONNECT_FAIL;
goto free_sock;
}
/* Check relayd version */
ret = relayd_version_check(rsock);
if (ret == LTTNG_ERR_RELAYD_VERSION_FAIL) {
+ status = LTTNG_ERR_RELAYD_VERSION_FAIL;
goto close_sock;
} else if (ret < 0) {
ERR("Unable to reach lttng-relayd");
- ret = LTTNG_ERR_RELAYD_CONNECT_FAIL;
+ status = LTTNG_ERR_RELAYD_CONNECT_FAIL;
goto close_sock;
}
consumer->relay_major_version = rsock->major;
} else {
/* Command is not valid */
ERR("Relayd invalid stream type: %d", uri->stype);
- ret = LTTNG_ERR_INVALID;
+ status = LTTNG_ERR_INVALID;
goto close_sock;
}
*relayd_sock = rsock;
- return LTTNG_OK;
+ return status;
close_sock:
/* The returned value is not useful since we are on an error path. */
free_sock:
free(rsock);
error:
- return ret;
+ return status;
}
/*
* Connect to the relayd using URI and send the socket to the right consumer.
*
* The consumer socket lock must be held by the caller.
+ *
+ * Returns LTTNG_OK on success or an LTTng error code on failure.
*/
-static int send_consumer_relayd_socket(unsigned int session_id,
+static enum lttng_error_code send_consumer_relayd_socket(
+ unsigned int session_id,
struct lttng_uri *relayd_uri,
struct consumer_output *consumer,
struct consumer_socket *consumer_sock,
{
int ret;
struct lttcomm_relayd_sock *rsock = NULL;
+ enum lttng_error_code status;
/* Connect to relayd and make version check if uri is the control. */
- ret = create_connect_relayd(relayd_uri, &rsock, consumer);
- if (ret != LTTNG_OK) {
+ status = create_connect_relayd(relayd_uri, &rsock, consumer);
+ if (status != LTTNG_OK) {
goto relayd_comm_error;
}
assert(rsock);
relayd_uri->stype, session_id,
session_name, hostname, session_live_timer);
if (ret < 0) {
- ret = LTTNG_ERR_ENABLE_CONSUMER_FAIL;
+ status = LTTNG_ERR_ENABLE_CONSUMER_FAIL;
goto close_sock;
}
consumer_sock->data_sock_sent = 1;
}
- ret = LTTNG_OK;
-
/*
* Close socket which was dup on the consumer side. The session daemon does
* NOT keep track of the relayd socket(s) once transfer to the consumer.
*/
close_sock:
- if (ret != LTTNG_OK) {
+ if (status != LTTNG_OK) {
/*
* The consumer output for this session should not be used anymore
* since the relayd connection failed thus making any tracing or/and
free(rsock);
relayd_comm_error:
- return ret;
+ return status;
}
/*
* session.
*
* The consumer socket lock must be held by the caller.
+ *
+ * Returns LTTNG_OK, or an LTTng error code on failure.
*/
-static int send_consumer_relayd_sockets(enum lttng_domain_type domain,
+static enum lttng_error_code send_consumer_relayd_sockets(
+ enum lttng_domain_type domain,
unsigned int session_id, struct consumer_output *consumer,
struct consumer_socket *sock, char *session_name,
char *hostname, int session_live_timer)
{
- int ret = LTTNG_OK;
+ enum lttng_error_code status = LTTNG_OK;
assert(consumer);
assert(sock);
/* Sending control relayd socket. */
if (!sock->control_sock_sent) {
- ret = send_consumer_relayd_socket(session_id,
+ status = send_consumer_relayd_socket(session_id,
&consumer->dst.net.control, consumer, sock,
session_name, hostname, session_live_timer);
- if (ret != LTTNG_OK) {
+ if (status != LTTNG_OK) {
goto error;
}
}
/* Sending data relayd socket. */
if (!sock->data_sock_sent) {
- ret = send_consumer_relayd_socket(session_id,
+ status = send_consumer_relayd_socket(session_id,
&consumer->dst.net.data, consumer, sock,
session_name, hostname, session_live_timer);
- if (ret != LTTNG_OK) {
+ if (status != LTTNG_OK) {
goto error;
}
}
error:
- return ret;
+ return status;
}
/*
* Send relayd sockets from snapshot output to consumer. Ignore request if the
* snapshot output is *not* set with a remote destination.
*
- * Return 0 on success or a LTTNG_ERR code.
+ * Return LTTNG_OK on success or a LTTNG_ERR code.
*/
-static int set_relayd_for_snapshot(struct consumer_output *consumer,
- struct snapshot_output *snap_output, struct ltt_session *session)
+static enum lttng_error_code set_relayd_for_snapshot(
+ struct consumer_output *consumer,
+ struct snapshot_output *snap_output,
+ struct ltt_session *session)
{
- int ret = LTTNG_OK;
+ enum lttng_error_code status = LTTNG_OK;
struct lttng_ht_iter iter;
struct consumer_socket *socket;
cds_lfht_for_each_entry(snap_output->consumer->socks->ht, &iter.iter,
socket, node.node) {
pthread_mutex_lock(socket->lock);
- ret = send_consumer_relayd_sockets(0, session->id,
+ status = send_consumer_relayd_sockets(0, session->id,
snap_output->consumer, socket,
session->name, session->hostname,
session->live_timer);
pthread_mutex_unlock(socket->lock);
- if (ret != LTTNG_OK) {
+ if (status != LTTNG_OK) {
rcu_read_unlock();
goto error;
}
rcu_read_unlock();
error:
- return ret;
+ return status;
}
/*
*
* Return LTTNG_OK on success or a LTTNG_ERR code.
*/
-static int record_kernel_snapshot(struct ltt_kernel_session *ksess,
+static enum lttng_error_code record_kernel_snapshot(struct ltt_kernel_session *ksess,
struct snapshot_output *output, struct ltt_session *session,
int wait, uint64_t nb_packets_per_stream)
{
int ret;
+ enum lttng_error_code status;
assert(ksess);
assert(output);
assert(session);
-
/*
* Copy kernel session sockets so we can communicate with the right
* consumer for the snapshot record command.
*/
ret = consumer_copy_sockets(output->consumer, ksess->consumer);
if (ret < 0) {
- ret = LTTNG_ERR_NOMEM;
+ status = LTTNG_ERR_NOMEM;
goto error;
}
- ret = set_relayd_for_snapshot(ksess->consumer, output, session);
- if (ret != LTTNG_OK) {
+ status = set_relayd_for_snapshot(ksess->consumer, output, session);
+ if (status != LTTNG_OK) {
goto error_snapshot;
}
- ret = kernel_snapshot_record(ksess, output, wait, nb_packets_per_stream);
- if (ret != LTTNG_OK) {
+ status = kernel_snapshot_record(ksess, output, wait, nb_packets_per_stream);
+ if (status != LTTNG_OK) {
goto error_snapshot;
}
- ret = LTTNG_OK;
goto end;
error_snapshot:
consumer_destroy_output_sockets(output->consumer);
error:
end:
- return ret;
+ return status;
}
/*
* Record a UST snapshot.
*
- * Return 0 on success or a LTTNG_ERR error code.
+ * Returns LTTNG_OK on success or a LTTNG_ERR error code.
*/
-static int record_ust_snapshot(struct ltt_ust_session *usess,
+static enum lttng_error_code record_ust_snapshot(struct ltt_ust_session *usess,
struct snapshot_output *output, struct ltt_session *session,
int wait, uint64_t nb_packets_per_stream)
{
int ret;
+ enum lttng_error_code status;
assert(usess);
assert(output);
*/
ret = consumer_copy_sockets(output->consumer, usess->consumer);
if (ret < 0) {
- ret = LTTNG_ERR_NOMEM;
+ status = LTTNG_ERR_NOMEM;
goto error;
}
- ret = set_relayd_for_snapshot(usess->consumer, output, session);
- if (ret != LTTNG_OK) {
+ status = set_relayd_for_snapshot(usess->consumer, output, session);
+ if (status != LTTNG_OK) {
goto error_snapshot;
}
- ret = ust_app_snapshot_record(usess, output, wait, nb_packets_per_stream);
- if (ret < 0) {
- switch (-ret) {
- case EINVAL:
- ret = LTTNG_ERR_INVALID;
- break;
- default:
- ret = LTTNG_ERR_SNAPSHOT_FAIL;
- break;
- }
+ status = ust_app_snapshot_record(usess, output, wait, nb_packets_per_stream);
+ if (status != LTTNG_OK) {
goto error_snapshot;
}
- ret = LTTNG_OK;
-
error_snapshot:
/* Clean up copied sockets so this output can use some other later on. */
consumer_destroy_output_sockets(output->consumer);
error:
- return ret;
+ return status;
}
static
int cmd_snapshot_record(struct ltt_session *session,
struct lttng_snapshot_output *output, int wait)
{
- int ret = LTTNG_OK;
+ enum lttng_error_code cmd_ret = LTTNG_OK;
+ int ret;
unsigned int use_tmp_output = 0;
struct snapshot_output tmp_output;
unsigned int snapshot_success = 0;
ret = utils_get_current_time_str("%Y%m%d-%H%M%S", datetime,
sizeof(datetime));
if (!ret) {
- ret = LTTNG_ERR_INVALID;
+ cmd_ret = LTTNG_ERR_INVALID;
goto error;
}
* set in no output mode.
*/
if (session->output_traces) {
- ret = LTTNG_ERR_NOT_SNAPSHOT_SESSION;
+ cmd_ret = LTTNG_ERR_NOT_SNAPSHOT_SESSION;
goto error;
}
/* The session needs to be started at least once. */
if (!session->has_been_started) {
- ret = LTTNG_ERR_START_SESSION_ONCE;
+ cmd_ret = LTTNG_ERR_START_SESSION_ONCE;
goto error;
}
&tmp_output, NULL);
if (ret < 0) {
if (ret == -ENOMEM) {
- ret = LTTNG_ERR_NOMEM;
+ cmd_ret = LTTNG_ERR_NOMEM;
} else {
- ret = LTTNG_ERR_INVALID;
+ cmd_ret = LTTNG_ERR_INVALID;
}
goto error;
}
nb_packets_per_stream = get_session_nb_packets_per_stream(session,
tmp_output.max_size);
if (nb_packets_per_stream < 0) {
- ret = LTTNG_ERR_MAX_SIZE_INVALID;
+ cmd_ret = LTTNG_ERR_MAX_SIZE_INVALID;
goto error;
}
if (session->kernel_session) {
- ret = record_kernel_snapshot(session->kernel_session,
+ cmd_ret = record_kernel_snapshot(session->kernel_session,
&tmp_output, session,
wait, nb_packets_per_stream);
- if (ret != LTTNG_OK) {
+ if (cmd_ret != LTTNG_OK) {
goto error;
}
}
if (session->ust_session) {
- ret = record_ust_snapshot(session->ust_session,
+ cmd_ret = record_ust_snapshot(session->ust_session,
&tmp_output, session,
wait, nb_packets_per_stream);
- if (ret != LTTNG_OK) {
+ if (cmd_ret != LTTNG_OK) {
goto error;
}
}
nb_packets_per_stream = get_session_nb_packets_per_stream(session,
tmp_output.max_size);
if (nb_packets_per_stream < 0) {
- ret = LTTNG_ERR_MAX_SIZE_INVALID;
+ cmd_ret = LTTNG_ERR_MAX_SIZE_INVALID;
rcu_read_unlock();
goto error;
}
if (*output->name != '\0') {
if (lttng_strncpy(tmp_output.name, output->name,
sizeof(tmp_output.name))) {
- ret = LTTNG_ERR_INVALID;
+ cmd_ret = LTTNG_ERR_INVALID;
rcu_read_unlock();
goto error;
}
memcpy(tmp_output.datetime, datetime, sizeof(datetime));
if (session->kernel_session) {
- ret = record_kernel_snapshot(session->kernel_session,
+ cmd_ret = record_kernel_snapshot(session->kernel_session,
&tmp_output, session,
wait, nb_packets_per_stream);
- if (ret != LTTNG_OK) {
+ if (cmd_ret != LTTNG_OK) {
rcu_read_unlock();
goto error;
}
}
if (session->ust_session) {
- ret = record_ust_snapshot(session->ust_session,
+ cmd_ret = record_ust_snapshot(session->ust_session,
&tmp_output, session,
wait, nb_packets_per_stream);
- if (ret != LTTNG_OK) {
+ if (cmd_ret != LTTNG_OK) {
rcu_read_unlock();
goto error;
}
if (snapshot_success) {
session->snapshot.nb_snapshot++;
} else {
- ret = LTTNG_ERR_SNAPSHOT_FAIL;
+ cmd_ret = LTTNG_ERR_SNAPSHOT_FAIL;
}
error:
- return ret;
+ return cmd_ret;
}
/*
* Ask the consumer to rotate the session output directory.
* The session lock must be held.
*
- * Return LTTNG_OK on success or else a LTTNG_ERR code.
+ * Returns LTTNG_OK on success or else a negative LTTng error code.
*/
int cmd_rotate_session(struct ltt_session *session,
struct lttng_rotate_session_return *rotate_return)
{
int ret;
+ enum lttng_error_code cmd_ret = LTTNG_OK;
size_t strf_ret;
struct tm *timeinfo;
char datetime[21];
assert(session);
if (!session->has_been_started) {
- ret = -LTTNG_ERR_START_SESSION_ONCE;
+ cmd_ret = LTTNG_ERR_START_SESSION_ONCE;
goto end;
}
if (session->live_timer || session->snapshot_mode ||
!session->output_traces) {
- ret = -LTTNG_ERR_ROTATION_NOT_AVAILABLE;
+ cmd_ret = LTTNG_ERR_ROTATION_NOT_AVAILABLE;
goto end;
}
if (session->consumer->type == CONSUMER_DST_NET &&
(session->consumer->relay_major_version == 2 &&
session->consumer->relay_minor_version < 11)) {
- ret = -LTTNG_ERR_ROTATION_NOT_AVAILABLE_RELAY;
+ cmd_ret = LTTNG_ERR_ROTATION_NOT_AVAILABLE_RELAY;
goto end;
}
if (session->rotation_state == LTTNG_ROTATION_STATE_ONGOING) {
- ret = -LTTNG_ERR_ROTATION_PENDING;
DBG("Refusing to launch a rotation; a rotation is already in progress for session %s",
session->name);
+ cmd_ret = LTTNG_ERR_ROTATION_PENDING;
goto end;
}
if (session->rotated_after_last_stop) {
DBG("Session \"%s\" was already rotated after stop, refusing rotation",
session->name);
- ret = -LTTNG_ERR_ROTATION_MULTIPLE_AFTER_STOP;
+ cmd_ret = LTTNG_ERR_ROTATION_MULTIPLE_AFTER_STOP;
goto end;
}
sizeof(session->rotation_chunk.current_rotate_path));
if (ret) {
ERR("Failed to copy session base path to current rotation chunk path");
- ret = -LTTNG_ERR_UNK;
+ cmd_ret = LTTNG_ERR_UNK;
goto end;
}
} else {
sizeof(session->rotation_chunk.current_rotate_path));
if (ret) {
ERR("Failed to copy the active tracing path to the current rotate path");
- ret = -LTTNG_ERR_UNK;
+ cmd_ret = LTTNG_ERR_UNK;
goto end;
}
}
now = time(NULL);
if (now == (time_t) -1) {
- ret = -LTTNG_ERR_ROTATION_NOT_AVAILABLE;
+ cmd_ret = LTTNG_ERR_ROTATION_NOT_AVAILABLE;
goto end;
}
timeinfo = localtime(&now);
if (!timeinfo) {
PERROR("Failed to sample local time in rotate session command");
- ret = -LTTNG_ERR_UNK;
+ cmd_ret = LTTNG_ERR_UNK;
goto end;
}
strf_ret = strftime(datetime, sizeof(datetime), "%Y%m%dT%H%M%S%z",
timeinfo);
if (!strf_ret) {
ERR("Failed to format local time timestamp in rotate session command");
- ret = -LTTNG_ERR_UNK;
+ cmd_ret = LTTNG_ERR_UNK;
goto end;
}
datetime, session->current_archive_id + 1);
if (ret < 0 || ret == sizeof(session->rotation_chunk.active_tracing_path)) {
ERR("Failed to format active kernel tracing path in rotate session command");
- ret = -LTTNG_ERR_UNK;
+ cmd_ret = LTTNG_ERR_UNK;
goto error;
}
/*
session->current_archive_id + 1);
if (ret < 0 || ret == sizeof(session->kernel_session->consumer->chunk_path)) {
ERR("Failed to format the kernel consumer's sub-directory in rotate session command");
- ret = -LTTNG_ERR_UNK;
+ cmd_ret = LTTNG_ERR_UNK;
goto error;
}
/*
if (ret) {
ERR("Failed to create kernel session tracing path at %s",
session->kernel_session->consumer->chunk_path);
- ret = -LTTNG_ERR_CREATE_DIR_FAIL;
+ cmd_ret = LTTNG_ERR_CREATE_DIR_FAIL;
goto error;
}
- ret = kernel_rotate_session(session);
- if (ret != LTTNG_OK) {
- ret = -ret;
+ cmd_ret = kernel_rotate_session(session);
+ if (cmd_ret != LTTNG_OK) {
goto error;
}
}
datetime, session->current_archive_id + 1);
if (ret < 0) {
ERR("Failed to format active UST tracing path in rotate session command");
- ret = -LTTNG_ERR_UNK;
+ cmd_ret = LTTNG_ERR_UNK;
goto error;
}
ret = snprintf(session->ust_session->consumer->chunk_path,
session->current_archive_id + 1);
if (ret < 0) {
ERR("Failed to format the UST consumer's sub-directory in rotate session command");
- ret = -LTTNG_ERR_UNK;
+ cmd_ret = LTTNG_ERR_UNK;
goto error;
}
/*
session->ust_session->uid,
session->ust_session->gid);
if (ret) {
- ret = -LTTNG_ERR_CREATE_DIR_FAIL;
+ cmd_ret = LTTNG_ERR_CREATE_DIR_FAIL;
goto error;
}
- ret = ust_app_rotate_session(session);
- if (ret != LTTNG_OK) {
+ cmd_ret = ust_app_rotate_session(session);
+ if (cmd_ret != LTTNG_OK) {
goto error;
}
}
ret = timer_session_rotation_pending_check_start(session,
DEFAULT_ROTATE_PENDING_TIMER);
if (ret) {
+ cmd_ret = LTTNG_ERR_UNK;
goto error;
}
if (ret != LTTNG_OK) {
ERR("Failed to notify notification thread that a session rotation is ongoing for session %s",
session->name);
+ cmd_ret = ret;
}
DBG("Cmd rotate session %s, archive_id %" PRIu64 " sent",
session->name, session->current_archive_id - 1);
- ret = LTTNG_OK;
-
end:
+ ret = (cmd_ret == LTTNG_OK) ? cmd_ret : -((int) cmd_ret);
return ret;
error:
session->last_chunk_start_ts = original_last_chunk_start_ts;
projects / lttng-tools.git / blobdiff