* A registry per UID object MUST exists before calling this function or else
* it LTTNG_ASSERT() if not found. RCU read side lock must be acquired.
*/
-static struct ust_registry_session *get_session_registry(
+static ust_registry_session *get_session_registry(
struct ust_app_session *ua_sess)
{
- struct ust_registry_session *registry = NULL;
+ ust_registry_session *registry = NULL;
LTTNG_ASSERT(ua_sess);
struct ust_app_event *ua_event;
struct ust_app_ctx *ua_ctx;
struct ust_app_stream *stream, *stmp;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
LTTNG_ASSERT(ua_chan);
ASSERT_RCU_READ_LOCKED();
* but it can be caused by recoverable errors (e.g. the application has
* terminated concurrently).
*/
-ssize_t ust_app_push_metadata(struct ust_registry_session *registry,
+ssize_t ust_app_push_metadata(ust_registry_session *registry,
struct consumer_socket *socket, int send_zero_data)
{
int ret;
LTTNG_ASSERT(socket);
ASSERT_RCU_READ_LOCKED();
- metadata_key = registry->metadata_key;
+ metadata_key = registry->_metadata_key;
/*
* Means that no metadata was assigned to the session. This can
return 0;
}
- offset = registry->metadata_len_sent;
- len = registry->metadata_len - registry->metadata_len_sent;
- new_metadata_len_sent = registry->metadata_len;
- metadata_version = registry->metadata_version;
+ offset = registry->_metadata_len_sent;
+ len = registry->_metadata_len - registry->_metadata_len_sent;
+ new_metadata_len_sent = registry->_metadata_len;
+ metadata_version = registry->_metadata_version;
if (len == 0) {
DBG3("No metadata to push for metadata key %" PRIu64,
- registry->metadata_key);
+ registry->_metadata_key);
ret_val = len;
if (send_zero_data) {
DBG("No metadata to push");
goto error;
}
/* Copy what we haven't sent out. */
- memcpy(metadata_str, registry->metadata + offset, len);
+ memcpy(metadata_str, registry->_metadata + offset, len);
push_data:
- pthread_mutex_unlock(®istry->lock);
+ pthread_mutex_unlock(®istry->_lock);
/*
* We need to unlock the registry while we push metadata to
* break a circular dependency between the consumerd metadata
*/
ret = consumer_push_metadata(socket, metadata_key,
metadata_str, len, offset, metadata_version);
- pthread_mutex_lock(®istry->lock);
+ pthread_mutex_lock(®istry->_lock);
if (ret < 0) {
/*
* There is an acceptable race here between the registry
* largest metadata_len_sent value of the concurrent
* send.
*/
- registry->metadata_len_sent =
- std::max(registry->metadata_len_sent,
+ registry->_metadata_len_sent =
+ std::max(registry->_metadata_len_sent,
new_metadata_len_sent);
}
free(metadata_str);
* the metadata cache has been destroyed on the
* consumer.
*/
- registry->metadata_closed = 1;
+ registry->_metadata_closed = true;
}
error_push:
free(metadata_str);
* but it can be caused by recoverable errors (e.g. the application has
* terminated concurrently).
*/
-static int push_metadata(struct ust_registry_session *registry,
+static int push_metadata(ust_registry_session *registry,
struct consumer_output *consumer)
{
int ret_val;
LTTNG_ASSERT(consumer);
ASSERT_RCU_READ_LOCKED();
- pthread_mutex_lock(®istry->lock);
- if (registry->metadata_closed) {
+ pthread_mutex_lock(®istry->_lock);
+ if (registry->_metadata_closed) {
ret_val = -EPIPE;
goto error;
}
/* Get consumer socket to use to push the metadata.*/
- socket = consumer_find_socket_by_bitness(registry->bits_per_long,
+ socket = consumer_find_socket_by_bitness(registry->_bits_per_long,
consumer);
if (!socket) {
ret_val = -1;
ret_val = ret;
goto error;
}
- pthread_mutex_unlock(®istry->lock);
+ pthread_mutex_unlock(®istry->_lock);
return 0;
error:
- pthread_mutex_unlock(®istry->lock);
+ pthread_mutex_unlock(®istry->_lock);
return ret_val;
}
*
* Return 0 on success else a negative value.
*/
-static int close_metadata(struct ust_registry_session *registry,
+static int close_metadata(ust_registry_session *registry,
struct consumer_output *consumer)
{
int ret;
rcu_read_lock();
- pthread_mutex_lock(®istry->lock);
- metadata_key = registry->metadata_key;
- registry_was_already_closed = registry->metadata_closed;
+ pthread_mutex_lock(®istry->_lock);
+ metadata_key = registry->_metadata_key;
+ registry_was_already_closed = registry->_metadata_closed;
if (metadata_key != 0) {
/*
* Metadata closed. Even on error this means that the consumer
* is not responding or not found so either way a second close
* should NOT be emit for this registry.
*/
- registry->metadata_closed = 1;
+ registry->_metadata_closed = true;
}
- pthread_mutex_unlock(®istry->lock);
+ pthread_mutex_unlock(®istry->_lock);
if (metadata_key == 0 || registry_was_already_closed) {
ret = 0;
}
/* Get consumer socket to use to push the metadata.*/
- socket = consumer_find_socket_by_bitness(registry->bits_per_long,
+ socket = consumer_find_socket_by_bitness(registry->_bits_per_long,
consumer);
if (!socket) {
ret = -1;
int ret;
struct lttng_ht_iter iter;
struct ust_app_channel *ua_chan;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
LTTNG_ASSERT(ua_sess);
ASSERT_RCU_READ_LOCKED();
}
/* Initialize registry. */
- ret = ust_registry_session_init(®_pid->registry->reg.ust, app,
+ reg_pid->registry->reg.ust = ust_registry_session_per_pid_create(app,
app->bits_per_long, app->uint8_t_alignment,
app->uint16_t_alignment, app->uint32_t_alignment,
app->uint64_t_alignment, app->long_alignment,
reg_pid->root_shm_path, reg_pid->shm_path,
lttng_credentials_get_uid(&ua_sess->effective_credentials),
lttng_credentials_get_gid(&ua_sess->effective_credentials),
- ua_sess->tracing_id,
- app->uid);
- if (ret < 0) {
+ ua_sess->tracing_id);
+ if (!reg_pid->registry->reg.ust) {
/*
* reg_pid->registry->reg.ust is NULL upon error, so we need to
* destroy the buffer registry, because it is always expected
}
/* Initialize registry. */
- ret = ust_registry_session_init(®_uid->registry->reg.ust, NULL,
+ reg_uid->registry->reg.ust = ust_registry_session_per_uid_create(
app->bits_per_long, app->uint8_t_alignment,
app->uint16_t_alignment, app->uint32_t_alignment,
app->uint64_t_alignment, app->long_alignment,
app->version.minor, reg_uid->root_shm_path,
reg_uid->shm_path, usess->uid, usess->gid,
ua_sess->tracing_id, app->uid);
- if (ret < 0) {
+ if (!reg_uid->registry->reg.ust) {
/*
* reg_uid->registry->reg.ust is NULL upon error, so we need to
* destroy the buffer registry, because it is always expected
buffer_reg_uid_destroy(reg_uid, NULL);
goto error;
}
+
/* Add node to teardown list of the session. */
cds_list_add(®_uid->lnode, &usess->buffer_reg_uid_list);
*/
static int do_consumer_create_channel(struct ltt_ust_session *usess,
struct ust_app_session *ua_sess, struct ust_app_channel *ua_chan,
- int bitness, struct ust_registry_session *registry)
+ int bitness, ust_registry_session *registry)
{
int ret;
unsigned int nb_fd = 0;
}
/* Notify the notification subsystem of the channel's creation. */
- pthread_mutex_lock(®_uid->registry->reg.ust->lock);
+ pthread_mutex_lock(®_uid->registry->reg.ust->_lock);
ust_reg_chan = ust_registry_channel_find(reg_uid->registry->reg.ust,
ua_chan->tracing_channel_id);
LTTNG_ASSERT(ust_reg_chan);
ust_reg_chan->consumer_key = ua_chan->key;
ust_reg_chan = NULL;
- pthread_mutex_unlock(®_uid->registry->reg.ust->lock);
+ pthread_mutex_unlock(®_uid->registry->reg.ust->_lock);
notification_ret = notification_thread_command_add_channel(
the_notification_thread_handle, session->name,
struct ust_app_channel *ua_chan)
{
int ret;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
enum lttng_error_code cmd_ret;
struct ltt_session *session = NULL;
uint64_t chan_reg_key;
}
chan_reg_key = ua_chan->key;
- pthread_mutex_lock(®istry->lock);
+ pthread_mutex_lock(®istry->_lock);
ust_reg_chan = ust_registry_channel_find(registry, chan_reg_key);
LTTNG_ASSERT(ust_reg_chan);
ust_reg_chan->consumer_key = ua_chan->key;
- pthread_mutex_unlock(®istry->lock);
+ pthread_mutex_unlock(®istry->_lock);
cmd_ret = notification_thread_command_add_channel(
the_notification_thread_handle, session->name,
int ret = 0;
struct ust_app_channel *metadata;
struct consumer_socket *socket;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
struct ltt_session *session = NULL;
LTTNG_ASSERT(ua_sess);
/* The UST app session is held registry shall not be null. */
LTTNG_ASSERT(registry);
- pthread_mutex_lock(®istry->lock);
+ pthread_mutex_lock(®istry->_lock);
/* Metadata already exists for this registry or it was closed previously */
- if (registry->metadata_key || registry->metadata_closed) {
+ if (registry->_metadata_key || registry->_metadata_closed) {
ret = 0;
goto error;
}
* consumer requesting the metadata and the ask_channel call on our side
* did not returned yet.
*/
- registry->metadata_key = metadata->key;
+ registry->_metadata_key = metadata->key;
session = session_find_by_id(ua_sess->tracing_id);
LTTNG_ASSERT(session);
registry, session->current_trace_chunk);
if (ret < 0) {
/* Nullify the metadata key so we don't try to close it later on. */
- registry->metadata_key = 0;
+ registry->_metadata_key = 0;
goto error_consumer;
}
ret = consumer_setup_metadata(socket, metadata->key);
if (ret < 0) {
/* Nullify the metadata key so we don't try to close it later on. */
- registry->metadata_key = 0;
+ registry->_metadata_key = 0;
goto error_consumer;
}
lttng_fd_put(LTTNG_FD_APPS, 1);
delete_ust_app_channel(-1, metadata, app);
error:
- pthread_mutex_unlock(®istry->lock);
+ pthread_mutex_unlock(®istry->_lock);
if (session) {
session_put(session);
}
*/
cds_lfht_for_each_entry(lta->sessions->ht, &iter.iter, ua_sess,
node.node) {
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
ret = lttng_ht_del(lta->sessions, &iter);
if (ret) {
{
int ret = 0;
struct ust_app_session *ua_sess;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
DBG("Stopping tracing for ust app pid %d", app->pid);
/* Flush all per UID buffers associated to that session. */
cds_list_for_each_entry(reg, &usess->buffer_reg_uid_list, lnode) {
- struct ust_registry_session *ust_session_reg;
+ ust_registry_session *ust_session_reg;
struct buffer_reg_channel *buf_reg_chan;
struct consumer_socket *socket;
struct ust_app *app;
struct ust_app_channel *ua_chan;
struct ust_app_session *ua_sess;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
struct ust_registry_channel *ust_reg_chan;
rcu_read_lock();
chan_reg_key = ua_chan->key;
}
- pthread_mutex_lock(®istry->lock);
+ pthread_mutex_lock(®istry->_lock);
ust_reg_chan = ust_registry_channel_find(registry, chan_reg_key);
LTTNG_ASSERT(ust_reg_chan);
ust_reg_chan->register_done = 1;
error:
- pthread_mutex_unlock(®istry->lock);
+ pthread_mutex_unlock(®istry->_lock);
error_rcu_unlock:
rcu_read_unlock();
free(fields);
struct ust_app *app;
struct ust_app_channel *ua_chan;
struct ust_app_session *ua_sess;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
rcu_read_lock();
chan_reg_key = ua_chan->key;
}
- pthread_mutex_lock(®istry->lock);
+ pthread_mutex_lock(®istry->_lock);
/*
* From this point on, this call acquires the ownership of the sig, fields
name, event_id);
error:
- pthread_mutex_unlock(®istry->lock);
+ pthread_mutex_unlock(®istry->_lock);
error_rcu_unlock:
rcu_read_unlock();
free(sig);
int ret = 0, ret_code;
struct ust_app *app;
struct ust_app_session *ua_sess;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
uint64_t enum_id = -1ULL;
rcu_read_lock();
goto error_rcu_unlock;
}
- pthread_mutex_lock(®istry->lock);
+ pthread_mutex_lock(®istry->_lock);
/*
* From this point on, the callee acquires the ownership of
DBG3("UST registry enum %s added successfully or already found", name);
error:
- pthread_mutex_unlock(®istry->lock);
+ pthread_mutex_unlock(®istry->_lock);
error_rcu_unlock:
rcu_read_unlock();
return ret;
char pathname[PATH_MAX];
size_t consumer_path_offset = 0;
- if (!reg->registry->reg.ust->metadata_key) {
+ if (!reg->registry->reg.ust->_metadata_key) {
/* Skip since no metadata is present */
continue;
}
}
}
status = consumer_snapshot_channel(socket,
- reg->registry->reg.ust->metadata_key, output, 1,
+ reg->registry->reg.ust->_metadata_key, output, 1,
&trace_path[consumer_path_offset], 0);
if (status != LTTNG_OK) {
goto error;
struct lttng_ht_iter chan_iter;
struct ust_app_channel *ua_chan;
struct ust_app_session *ua_sess;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
char pathname[PATH_MAX];
size_t consumer_path_offset = 0;
continue;
}
status = consumer_snapshot_channel(socket,
- registry->metadata_key, output, 1,
+ registry->_metadata_key, output, 1,
&trace_path[consumer_path_offset], 0);
switch (status) {
case LTTNG_OK:
* operations (i.e add context) and lead to data
* channels created with no metadata channel.
*/
- if (!reg->registry->reg.ust->metadata_key) {
+ if (!reg->registry->reg.ust->_metadata_key) {
/* Skip since no metadata is present. */
continue;
}
(void) push_metadata(reg->registry->reg.ust, usess->consumer);
ret = consumer_rotate_channel(socket,
- reg->registry->reg.ust->metadata_key,
+ reg->registry->reg.ust->_metadata_key,
usess->consumer,
/* is_metadata_channel */ true);
if (ret < 0) {
struct lttng_ht_iter chan_iter;
struct ust_app_channel *ua_chan;
struct ust_app_session *ua_sess;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
ua_sess = lookup_session_by_app(usess, app);
if (!ua_sess) {
/* Rotate the metadata channel. */
(void) push_metadata(registry, usess->consumer);
ret = consumer_rotate_channel(socket,
- registry->metadata_key,
+ registry->_metadata_key,
ua_sess->consumer,
/* is_metadata_channel */ true);
if (ret < 0) {
cds_lfht_for_each_entry(ust_app_ht->ht, &iter.iter, app,
pid_n.node) {
struct ust_app_session *ua_sess;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
ua_sess = lookup_session_by_app(usess, app);
if (!ua_sess) {
* perform a rotation operation on it behind the scene.
*/
ret = consumer_clear_channel(socket,
- reg->registry->reg.ust->metadata_key);
+ reg->registry->reg.ust->_metadata_key);
if (ret < 0) {
goto error;
}
struct lttng_ht_iter chan_iter;
struct ust_app_channel *ua_chan;
struct ust_app_session *ua_sess;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
ua_sess = lookup_session_by_app(usess, app);
if (!ua_sess) {
* Metadata channel is not cleared per se but we still need to
* perform rotation operation on it behind the scene.
*/
- ret = consumer_clear_channel(socket, registry->metadata_key);
+ ret = consumer_clear_channel(socket, registry->_metadata_key);
if (ret < 0) {
/* Per-PID buffer and application going away. */
if (ret == -LTTNG_ERR_CHAN_NOT_FOUND) {
struct lttng_ht_iter chan_iter;
struct ust_app_channel *ua_chan;
struct ust_app_session *ua_sess;
- struct ust_registry_session *registry;
+ ust_registry_session *registry;
ua_sess = lookup_session_by_app(usess, app);
if (!ua_sess) {
projects / lttng-tools.git / blobdiff