static struct kmem_cache *event_notifier_cache;
static struct kmem_cache *event_notifier_private_cache;
-static void lttng_session_lazy_sync_event_enablers(struct lttng_session *session);
-static void lttng_session_sync_event_enablers(struct lttng_session *session);
+static void lttng_session_lazy_sync_event_enablers(struct lttng_kernel_session *session);
+static void lttng_session_sync_event_enablers(struct lttng_kernel_session *session);
static void lttng_event_enabler_destroy(struct lttng_event_enabler *event_enabler);
static void lttng_event_notifier_enabler_destroy(struct lttng_event_notifier_enabler *event_notifier_enabler);
static void lttng_event_notifier_group_sync_enablers(struct lttng_event_notifier_group *event_notifier_group);
static void _lttng_event_destroy(struct lttng_kernel_event_common *event);
-static void _lttng_channel_destroy(struct lttng_channel *chan);
+static void _lttng_channel_destroy(struct lttng_kernel_channel_buffer *chan);
static int _lttng_event_unregister(struct lttng_kernel_event_recorder *event);
static int _lttng_event_notifier_unregister(struct lttng_kernel_event_notifier *event_notifier);
static
-int _lttng_event_metadata_statedump(struct lttng_session *session,
- struct lttng_channel *chan,
+int _lttng_event_metadata_statedump(struct lttng_kernel_session *session,
+ struct lttng_kernel_channel_buffer *chan,
struct lttng_kernel_event_recorder *event);
static
-int _lttng_session_metadata_statedump(struct lttng_session *session);
+int _lttng_session_metadata_statedump(struct lttng_kernel_session *session);
static
void _lttng_metadata_channel_hangup(struct lttng_metadata_stream *stream);
static
-int _lttng_type_statedump(struct lttng_session *session,
+int _lttng_type_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_type_common *type,
enum lttng_kernel_string_encoding parent_encoding,
size_t nesting);
static
-int _lttng_field_statedump(struct lttng_session *session,
+int _lttng_field_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting, const char **prev_field_name_p);
*/
int lttng_session_active(void)
{
- struct lttng_session *iter;
+ struct lttng_kernel_session_private *iter;
list_for_each_entry(iter, &sessions, list) {
- if (iter->active)
+ if (iter->pub->active)
return 1;
}
return 0;
}
-struct lttng_session *lttng_session_create(void)
+struct lttng_kernel_session *lttng_session_create(void)
{
- struct lttng_session *session;
+ struct lttng_kernel_session *session;
+ struct lttng_kernel_session_private *session_priv;
struct lttng_metadata_cache *metadata_cache;
int i;
mutex_lock(&sessions_mutex);
- session = lttng_kvzalloc(sizeof(struct lttng_session), GFP_KERNEL);
+ session = lttng_kvzalloc(sizeof(*session), GFP_KERNEL);
if (!session)
goto err;
- INIT_LIST_HEAD(&session->chan);
- INIT_LIST_HEAD(&session->events);
- lttng_guid_gen(&session->uuid);
+ session_priv = lttng_kvzalloc(sizeof(*session_priv), GFP_KERNEL);
+ if (!session_priv)
+ goto err_free_session;
+ session->priv = session_priv;
+ session_priv->pub = session;
+
+ INIT_LIST_HEAD(&session_priv->chan);
+ INIT_LIST_HEAD(&session_priv->events);
+ lttng_guid_gen(&session_priv->uuid);
metadata_cache = kzalloc(sizeof(struct lttng_metadata_cache),
GFP_KERNEL);
if (!metadata_cache)
- goto err_free_session;
+ goto err_free_session_private;
metadata_cache->data = vzalloc(METADATA_CACHE_DEFAULT_SIZE);
if (!metadata_cache->data)
goto err_free_cache;
metadata_cache->cache_alloc = METADATA_CACHE_DEFAULT_SIZE;
kref_init(&metadata_cache->refcount);
mutex_init(&metadata_cache->lock);
- session->metadata_cache = metadata_cache;
+ session_priv->metadata_cache = metadata_cache;
INIT_LIST_HEAD(&metadata_cache->metadata_stream);
- memcpy(&metadata_cache->uuid, &session->uuid,
+ memcpy(&metadata_cache->uuid, &session_priv->uuid,
sizeof(metadata_cache->uuid));
- INIT_LIST_HEAD(&session->enablers_head);
+ INIT_LIST_HEAD(&session_priv->enablers_head);
for (i = 0; i < LTTNG_EVENT_HT_SIZE; i++)
- INIT_HLIST_HEAD(&session->events_ht.table[i]);
- list_add(&session->list, &sessions);
- session->pid_tracker.session = session;
- session->pid_tracker.tracker_type = TRACKER_PID;
- session->vpid_tracker.session = session;
- session->vpid_tracker.tracker_type = TRACKER_VPID;
- session->uid_tracker.session = session;
- session->uid_tracker.tracker_type = TRACKER_UID;
- session->vuid_tracker.session = session;
- session->vuid_tracker.tracker_type = TRACKER_VUID;
- session->gid_tracker.session = session;
- session->gid_tracker.tracker_type = TRACKER_GID;
- session->vgid_tracker.session = session;
- session->vgid_tracker.tracker_type = TRACKER_VGID;
+ INIT_HLIST_HEAD(&session_priv->events_ht.table[i]);
+ list_add(&session_priv->list, &sessions);
+
+ if (lttng_id_tracker_init(&session->pid_tracker, session, TRACKER_PID))
+ goto tracker_alloc_error;
+ if (lttng_id_tracker_init(&session->vpid_tracker, session, TRACKER_VPID))
+ goto tracker_alloc_error;
+ if (lttng_id_tracker_init(&session->uid_tracker, session, TRACKER_UID))
+ goto tracker_alloc_error;
+ if (lttng_id_tracker_init(&session->vuid_tracker, session, TRACKER_VUID))
+ goto tracker_alloc_error;
+ if (lttng_id_tracker_init(&session->gid_tracker, session, TRACKER_GID))
+ goto tracker_alloc_error;
+ if (lttng_id_tracker_init(&session->vgid_tracker, session, TRACKER_VGID))
+ goto tracker_alloc_error;
+
mutex_unlock(&sessions_mutex);
+
return session;
+tracker_alloc_error:
+ lttng_id_tracker_fini(&session->pid_tracker);
+ lttng_id_tracker_fini(&session->vpid_tracker);
+ lttng_id_tracker_fini(&session->uid_tracker);
+ lttng_id_tracker_fini(&session->vuid_tracker);
+ lttng_id_tracker_fini(&session->gid_tracker);
+ lttng_id_tracker_fini(&session->vgid_tracker);
err_free_cache:
kfree(metadata_cache);
+err_free_session_private:
+ lttng_kvfree(session_priv);
err_free_session:
lttng_kvfree(session);
err:
* notifications.
*/
event_notifier_group->ops = &transport->ops;
- event_notifier_group->chan = transport->ops.channel_create(
+ event_notifier_group->chan = transport->ops.priv->channel_create(
transport_name, event_notifier_group, NULL,
subbuf_size, num_subbuf, switch_timer_interval,
read_timer_interval);
kfree(cache);
}
-void lttng_session_destroy(struct lttng_session *session)
+void lttng_session_destroy(struct lttng_kernel_session *session)
{
- struct lttng_channel *chan, *tmpchan;
+ struct lttng_kernel_channel_buffer_private *chan_priv, *tmpchan_priv;
struct lttng_kernel_event_recorder_private *event_recorder_priv, *tmpevent_recorder_priv;
struct lttng_metadata_stream *metadata_stream;
struct lttng_event_enabler *event_enabler, *tmp_event_enabler;
mutex_lock(&sessions_mutex);
WRITE_ONCE(session->active, 0);
- list_for_each_entry(chan, &session->chan, list) {
- ret = lttng_syscalls_unregister_channel(chan);
+ list_for_each_entry(chan_priv, &session->priv->chan, node) {
+ ret = lttng_syscalls_unregister_channel(chan_priv->pub);
WARN_ON(ret);
}
- list_for_each_entry(event_recorder_priv, &session->events, node) {
+ list_for_each_entry(event_recorder_priv, &session->priv->events, node) {
ret = _lttng_event_unregister(event_recorder_priv->pub);
WARN_ON(ret);
}
synchronize_trace(); /* Wait for in-flight events to complete */
- list_for_each_entry(chan, &session->chan, list) {
- ret = lttng_syscalls_destroy_event(chan);
+ list_for_each_entry(chan_priv, &session->priv->chan, node) {
+ ret = lttng_syscalls_destroy_event(chan_priv->pub);
WARN_ON(ret);
}
list_for_each_entry_safe(event_enabler, tmp_event_enabler,
- &session->enablers_head, node)
+ &session->priv->enablers_head, node)
lttng_event_enabler_destroy(event_enabler);
- list_for_each_entry_safe(event_recorder_priv, tmpevent_recorder_priv, &session->events, node)
+ list_for_each_entry_safe(event_recorder_priv, tmpevent_recorder_priv, &session->priv->events, node)
_lttng_event_destroy(&event_recorder_priv->pub->parent);
- list_for_each_entry_safe(chan, tmpchan, &session->chan, list) {
- BUG_ON(chan->channel_type == METADATA_CHANNEL);
- _lttng_channel_destroy(chan);
+ list_for_each_entry_safe(chan_priv, tmpchan_priv, &session->priv->chan, node) {
+ BUG_ON(chan_priv->channel_type == METADATA_CHANNEL);
+ _lttng_channel_destroy(chan_priv->pub);
}
- mutex_lock(&session->metadata_cache->lock);
- list_for_each_entry(metadata_stream, &session->metadata_cache->metadata_stream, list)
+ mutex_lock(&session->priv->metadata_cache->lock);
+ list_for_each_entry(metadata_stream, &session->priv->metadata_cache->metadata_stream, list)
_lttng_metadata_channel_hangup(metadata_stream);
- mutex_unlock(&session->metadata_cache->lock);
- lttng_id_tracker_destroy(&session->pid_tracker, false);
- lttng_id_tracker_destroy(&session->vpid_tracker, false);
- lttng_id_tracker_destroy(&session->uid_tracker, false);
- lttng_id_tracker_destroy(&session->vuid_tracker, false);
- lttng_id_tracker_destroy(&session->gid_tracker, false);
- lttng_id_tracker_destroy(&session->vgid_tracker, false);
- kref_put(&session->metadata_cache->refcount, metadata_cache_destroy);
- list_del(&session->list);
+ mutex_unlock(&session->priv->metadata_cache->lock);
+ lttng_id_tracker_fini(&session->pid_tracker);
+ lttng_id_tracker_fini(&session->vpid_tracker);
+ lttng_id_tracker_fini(&session->uid_tracker);
+ lttng_id_tracker_fini(&session->vuid_tracker);
+ lttng_id_tracker_fini(&session->gid_tracker);
+ lttng_id_tracker_fini(&session->vgid_tracker);
+ kref_put(&session->priv->metadata_cache->refcount, metadata_cache_destroy);
+ list_del(&session->priv->list);
mutex_unlock(&sessions_mutex);
+ lttng_kvfree(session->priv);
lttng_kvfree(session);
}
event_notifier_group->error_counter = NULL;
}
- event_notifier_group->ops->channel_destroy(event_notifier_group->chan);
+ event_notifier_group->ops->priv->channel_destroy(event_notifier_group->chan);
module_put(event_notifier_group->transport->owner);
list_del(&event_notifier_group->node);
lttng_kvfree(event_notifier_group);
}
-int lttng_session_statedump(struct lttng_session *session)
+int lttng_session_statedump(struct lttng_kernel_session *session)
{
int ret;
return ret;
}
-int lttng_session_enable(struct lttng_session *session)
+int lttng_session_enable(struct lttng_kernel_session *session)
{
int ret = 0;
- struct lttng_channel *chan;
+ struct lttng_kernel_channel_buffer_private *chan_priv;
mutex_lock(&sessions_mutex);
if (session->active) {
}
/* Set transient enabler state to "enabled" */
- session->tstate = 1;
+ session->priv->tstate = 1;
/* We need to sync enablers with session before activation. */
lttng_session_sync_event_enablers(session);
* Snapshot the number of events per channel to know the type of header
* we need to use.
*/
- list_for_each_entry(chan, &session->chan, list) {
- if (chan->header_type)
- continue; /* don't change it if session stop/restart */
- if (chan->free_event_id < 31)
- chan->header_type = 1; /* compact */
+ list_for_each_entry(chan_priv, &session->priv->chan, node) {
+ if (chan_priv->header_type)
+ continue; /* don't change it if session stop/restart */
+ if (chan_priv->free_event_id < 31)
+ chan_priv->header_type = 1; /* compact */
else
- chan->header_type = 2; /* large */
+ chan_priv->header_type = 2; /* large */
}
/* Clear each stream's quiescent state. */
- list_for_each_entry(chan, &session->chan, list) {
- if (chan->channel_type != METADATA_CHANNEL)
- lib_ring_buffer_clear_quiescent_channel(chan->chan);
+ list_for_each_entry(chan_priv, &session->priv->chan, node) {
+ if (chan_priv->channel_type != METADATA_CHANNEL)
+ lib_ring_buffer_clear_quiescent_channel(chan_priv->rb_chan);
}
WRITE_ONCE(session->active, 1);
- WRITE_ONCE(session->been_active, 1);
+ WRITE_ONCE(session->priv->been_active, 1);
ret = _lttng_session_metadata_statedump(session);
if (ret) {
WRITE_ONCE(session->active, 0);
return ret;
}
-int lttng_session_disable(struct lttng_session *session)
+int lttng_session_disable(struct lttng_kernel_session *session)
{
int ret = 0;
- struct lttng_channel *chan;
+ struct lttng_kernel_channel_buffer_private *chan_priv;
mutex_lock(&sessions_mutex);
if (!session->active) {
WRITE_ONCE(session->active, 0);
/* Set transient enabler state to "disabled" */
- session->tstate = 0;
+ session->priv->tstate = 0;
lttng_session_sync_event_enablers(session);
/* Set each stream's quiescent state. */
- list_for_each_entry(chan, &session->chan, list) {
- if (chan->channel_type != METADATA_CHANNEL)
- lib_ring_buffer_set_quiescent_channel(chan->chan);
+ list_for_each_entry(chan_priv, &session->priv->chan, node) {
+ if (chan_priv->channel_type != METADATA_CHANNEL)
+ lib_ring_buffer_set_quiescent_channel(chan_priv->rb_chan);
}
end:
mutex_unlock(&sessions_mutex);
return ret;
}
-int lttng_session_metadata_regenerate(struct lttng_session *session)
+int lttng_session_metadata_regenerate(struct lttng_kernel_session *session)
{
int ret = 0;
- struct lttng_channel *chan;
+ struct lttng_kernel_channel_buffer_private *chan_priv;
struct lttng_kernel_event_recorder_private *event_recorder_priv;
- struct lttng_metadata_cache *cache = session->metadata_cache;
+ struct lttng_metadata_cache *cache = session->priv->metadata_cache;
struct lttng_metadata_stream *stream;
mutex_lock(&sessions_mutex);
memset(cache->data, 0, cache->cache_alloc);
cache->metadata_written = 0;
cache->version++;
- list_for_each_entry(stream, &session->metadata_cache->metadata_stream, list) {
+ list_for_each_entry(stream, &session->priv->metadata_cache->metadata_stream, list) {
stream->metadata_out = 0;
stream->metadata_in = 0;
}
mutex_unlock(&cache->lock);
- session->metadata_dumped = 0;
- list_for_each_entry(chan, &session->chan, list) {
- chan->metadata_dumped = 0;
+ session->priv->metadata_dumped = 0;
+ list_for_each_entry(chan_priv, &session->priv->chan, node) {
+ chan_priv->metadata_dumped = 0;
}
- list_for_each_entry(event_recorder_priv, &session->events, node) {
+ list_for_each_entry(event_recorder_priv, &session->priv->events, node) {
event_recorder_priv->metadata_dumped = 0;
}
return ret;
}
-int lttng_channel_enable(struct lttng_channel *channel)
+int lttng_channel_enable(struct lttng_kernel_channel_buffer *channel)
{
int ret = 0;
mutex_lock(&sessions_mutex);
- if (channel->channel_type == METADATA_CHANNEL) {
+ if (channel->priv->channel_type == METADATA_CHANNEL) {
ret = -EPERM;
goto end;
}
- if (channel->enabled) {
+ if (channel->parent.enabled) {
ret = -EEXIST;
goto end;
}
/* Set transient enabler state to "enabled" */
- channel->tstate = 1;
- lttng_session_sync_event_enablers(channel->session);
+ channel->priv->parent.tstate = 1;
+ lttng_session_sync_event_enablers(channel->parent.session);
/* Set atomically the state to "enabled" */
- WRITE_ONCE(channel->enabled, 1);
+ WRITE_ONCE(channel->parent.enabled, 1);
end:
mutex_unlock(&sessions_mutex);
return ret;
}
-int lttng_channel_disable(struct lttng_channel *channel)
+int lttng_channel_disable(struct lttng_kernel_channel_buffer *channel)
{
int ret = 0;
mutex_lock(&sessions_mutex);
- if (channel->channel_type == METADATA_CHANNEL) {
+ if (channel->priv->channel_type == METADATA_CHANNEL) {
ret = -EPERM;
goto end;
}
- if (!channel->enabled) {
+ if (!channel->parent.enabled) {
ret = -EEXIST;
goto end;
}
/* Set atomically the state to "disabled" */
- WRITE_ONCE(channel->enabled, 0);
+ WRITE_ONCE(channel->parent.enabled, 0);
/* Set transient enabler state to "enabled" */
- channel->tstate = 0;
- lttng_session_sync_event_enablers(channel->session);
+ channel->priv->parent.tstate = 0;
+ lttng_session_sync_event_enablers(channel->parent.session);
end:
mutex_unlock(&sessions_mutex);
return ret;
struct lttng_kernel_event_recorder *event_recorder =
container_of(event, struct lttng_kernel_event_recorder, parent);
- if (event_recorder->chan->channel_type == METADATA_CHANNEL) {
+ if (event_recorder->chan->priv->channel_type == METADATA_CHANNEL) {
ret = -EPERM;
goto end;
}
struct lttng_kernel_event_recorder *event_recorder =
container_of(event, struct lttng_kernel_event_recorder, parent);
- if (event_recorder->chan->channel_type == METADATA_CHANNEL) {
+ if (event_recorder->chan->priv->channel_type == METADATA_CHANNEL) {
ret = -EPERM;
goto end;
}
return ret;
}
-struct lttng_channel *lttng_channel_create(struct lttng_session *session,
+struct lttng_kernel_channel_buffer *lttng_channel_create(struct lttng_kernel_session *session,
const char *transport_name,
void *buf_addr,
size_t subbuf_size, size_t num_subbuf,
unsigned int read_timer_interval,
enum channel_type channel_type)
{
- struct lttng_channel *chan;
+ struct lttng_kernel_channel_buffer *chan;
+ struct lttng_kernel_channel_buffer_private *chan_priv;
struct lttng_transport *transport = NULL;
mutex_lock(&sessions_mutex);
- if (session->been_active && channel_type != METADATA_CHANNEL)
+ if (session->priv->been_active && channel_type != METADATA_CHANNEL)
goto active; /* Refuse to add channel to active session */
transport = lttng_transport_find(transport_name);
if (!transport) {
printk(KERN_WARNING "LTTng: Can't lock transport module.\n");
goto notransport;
}
- chan = kzalloc(sizeof(struct lttng_channel), GFP_KERNEL);
+ chan = kzalloc(sizeof(struct lttng_kernel_channel_buffer), GFP_KERNEL);
if (!chan)
goto nomem;
- chan->session = session;
- chan->id = session->free_chan_id++;
+ chan_priv = kzalloc(sizeof(struct lttng_kernel_channel_buffer_private), GFP_KERNEL);
+ if (!chan_priv)
+ goto nomem_priv;
+ chan->priv = chan_priv;
+ chan_priv->pub = chan;
+ chan->parent.type = LTTNG_KERNEL_CHANNEL_TYPE_BUFFER;
+ chan->parent.session = session;
+ chan->priv->id = session->priv->free_chan_id++;
chan->ops = &transport->ops;
/*
* Note: the channel creation op already writes into the packet
* headers. Therefore the "chan" information used as input
* should be already accessible.
*/
- chan->chan = transport->ops.channel_create(transport_name,
+ chan->priv->rb_chan = transport->ops.priv->channel_create(transport_name,
chan, buf_addr, subbuf_size, num_subbuf,
switch_timer_interval, read_timer_interval);
- if (!chan->chan)
+ if (!chan->priv->rb_chan)
goto create_error;
- chan->tstate = 1;
- chan->enabled = 1;
- chan->transport = transport;
- chan->channel_type = channel_type;
- list_add(&chan->list, &session->chan);
+ chan->priv->parent.tstate = 1;
+ chan->parent.enabled = 1;
+ chan->priv->transport = transport;
+ chan->priv->channel_type = channel_type;
+ list_add(&chan->priv->node, &session->priv->chan);
mutex_unlock(&sessions_mutex);
return chan;
create_error:
+ kfree(chan_priv);
+nomem_priv:
kfree(chan);
nomem:
if (transport)
* Needs to be called with sessions mutex held.
*/
static
-void _lttng_channel_destroy(struct lttng_channel *chan)
+void _lttng_channel_destroy(struct lttng_kernel_channel_buffer *chan)
{
- chan->ops->channel_destroy(chan->chan);
- module_put(chan->transport->owner);
- list_del(&chan->list);
- lttng_kernel_destroy_context(chan->ctx);
+ chan->ops->priv->channel_destroy(chan->priv->rb_chan);
+ module_put(chan->priv->transport->owner);
+ list_del(&chan->priv->node);
+ lttng_kernel_destroy_context(chan->priv->ctx);
+ kfree(chan->priv);
kfree(chan);
}
-void lttng_metadata_channel_destroy(struct lttng_channel *chan)
+void lttng_metadata_channel_destroy(struct lttng_kernel_channel_buffer *chan)
{
- BUG_ON(chan->channel_type != METADATA_CHANNEL);
+ BUG_ON(chan->priv->channel_type != METADATA_CHANNEL);
/* Protect the metadata cache with the sessions_mutex. */
mutex_lock(&sessions_mutex);
* Supports event creation while tracing session is active.
* Needs to be called with sessions mutex held.
*/
-struct lttng_kernel_event_recorder *_lttng_kernel_event_recorder_create(struct lttng_channel *chan,
+struct lttng_kernel_event_recorder *_lttng_kernel_event_recorder_create(struct lttng_kernel_channel_buffer *chan,
struct lttng_kernel_abi_event *event_param,
const struct lttng_kernel_event_desc *event_desc,
enum lttng_kernel_abi_instrumentation itype)
{
- struct lttng_session *session = chan->session;
+ struct lttng_kernel_session *session = chan->parent.session;
struct lttng_kernel_event_recorder *event_recorder;
struct lttng_kernel_event_recorder_private *event_recorder_priv;
const char *event_name;
struct hlist_head *head;
int ret;
- if (chan->free_event_id == -1U) {
+ if (chan->priv->free_event_id == -1U) {
ret = -EMFILE;
goto full;
}
goto type_error;
}
- head = utils_borrow_hash_table_bucket(session->events_ht.table,
+ head = utils_borrow_hash_table_bucket(session->priv->events_ht.table,
LTTNG_EVENT_HT_SIZE, event_name);
lttng_hlist_for_each_entry(event_recorder_priv, head, hlist) {
WARN_ON_ONCE(!event_recorder_priv->parent.desc);
event_recorder->parent.run_filter = lttng_kernel_interpret_event_filter;
event_recorder->chan = chan;
- event_recorder->priv->id = chan->free_event_id++;
+ event_recorder->priv->id = chan->priv->free_event_id++;
event_recorder->priv->parent.instrumentation = itype;
INIT_LIST_HEAD(&event_recorder->priv->parent.filter_bytecode_runtime_head);
INIT_LIST_HEAD(&event_recorder->priv->parent.enablers_ref_head);
event_recorder_return->parent.run_filter = lttng_kernel_interpret_event_filter;
event_recorder_return->chan = chan;
- event_recorder_return->priv->id = chan->free_event_id++;
+ event_recorder_return->priv->id = chan->priv->free_event_id++;
event_recorder_return->priv->parent.instrumentation = itype;
event_recorder_return->parent.enabled = 0;
event_recorder_return->priv->parent.registered = 1;
WARN_ON_ONCE(!ret);
ret = try_module_get(event_recorder_return->priv->parent.desc->owner);
WARN_ON_ONCE(!ret);
- ret = _lttng_event_metadata_statedump(chan->session, chan,
+ ret = _lttng_event_metadata_statedump(chan->parent.session, chan,
event_recorder_return);
WARN_ON_ONCE(ret > 0);
if (ret) {
module_put(event_recorder->priv->parent.desc->owner);
goto statedump_error;
}
- list_add(&event_recorder_return->priv->node, &chan->session->events);
+ list_add(&event_recorder_return->priv->node, &chan->parent.session->priv->events);
break;
}
ret = -EINVAL;
goto register_error;
}
- ret = _lttng_event_metadata_statedump(chan->session, chan, event_recorder);
+ ret = _lttng_event_metadata_statedump(chan->parent.session, chan, event_recorder);
WARN_ON_ONCE(ret > 0);
if (ret) {
goto statedump_error;
}
hlist_add_head(&event_recorder->priv->hlist, head);
- list_add(&event_recorder->priv->node, &chan->session->events);
+ list_add(&event_recorder->priv->node, &chan->parent.session->priv->events);
return event_recorder;
statedump_error:
return counter->ops->counter_clear(counter->counter, dim_indexes);
}
-struct lttng_kernel_event_recorder *lttng_kernel_event_recorder_create(struct lttng_channel *chan,
+struct lttng_kernel_event_recorder *lttng_kernel_event_recorder_create(struct lttng_kernel_channel_buffer *chan,
struct lttng_kernel_abi_event *event_param,
const struct lttng_kernel_event_desc *event_desc,
enum lttng_kernel_abi_instrumentation itype)
switch (event_recorder->priv->parent.instrumentation) {
case LTTNG_KERNEL_ABI_TRACEPOINT:
ret = lttng_wrapper_tracepoint_probe_register(desc->event_kname,
- desc->probe_callback,
+ desc->tp_class->probe_callback,
event_recorder);
break;
switch (event_priv->instrumentation) {
case LTTNG_KERNEL_ABI_TRACEPOINT:
ret = lttng_wrapper_tracepoint_probe_unregister(event_priv->desc->event_kname,
- event_priv->desc->probe_callback,
+ event_priv->desc->tp_class->probe_callback,
event_recorder);
break;
switch (event_notifier->priv->parent.instrumentation) {
case LTTNG_KERNEL_ABI_TRACEPOINT:
ret = lttng_wrapper_tracepoint_probe_register(desc->event_kname,
- desc->probe_callback,
+ desc->tp_class->probe_callback,
event_notifier);
break;
switch (event_notifier->priv->parent.instrumentation) {
case LTTNG_KERNEL_ABI_TRACEPOINT:
ret = lttng_wrapper_tracepoint_probe_unregister(event_notifier->priv->parent.desc->event_kname,
- event_notifier->priv->parent.desc->probe_callback,
+ event_notifier->priv->parent.desc->tp_class->probe_callback,
event_notifier);
break;
}
}
-struct lttng_id_tracker *get_tracker(struct lttng_session *session,
+struct lttng_kernel_id_tracker *get_tracker(struct lttng_kernel_session *session,
enum tracker_type tracker_type)
{
switch (tracker_type) {
}
}
-int lttng_session_track_id(struct lttng_session *session,
+int lttng_session_track_id(struct lttng_kernel_session *session,
enum tracker_type tracker_type, int id)
{
- struct lttng_id_tracker *tracker;
+ struct lttng_kernel_id_tracker *tracker;
int ret;
tracker = get_tracker(session, tracker_type);
return ret;
}
-int lttng_session_untrack_id(struct lttng_session *session,
+int lttng_session_untrack_id(struct lttng_kernel_session *session,
enum tracker_type tracker_type, int id)
{
- struct lttng_id_tracker *tracker;
+ struct lttng_kernel_id_tracker *tracker;
int ret;
tracker = get_tracker(session, tracker_type);
static
void *id_list_start(struct seq_file *m, loff_t *pos)
{
- struct lttng_id_tracker *id_tracker = m->private;
- struct lttng_id_tracker_rcu *id_tracker_p = id_tracker->p;
+ struct lttng_kernel_id_tracker *id_tracker = m->private;
+ struct lttng_kernel_id_tracker_rcu *id_tracker_p = id_tracker->p;
struct lttng_id_hash_node *e;
int iter = 0, i;
static
void *id_list_next(struct seq_file *m, void *p, loff_t *ppos)
{
- struct lttng_id_tracker *id_tracker = m->private;
- struct lttng_id_tracker_rcu *id_tracker_p = id_tracker->p;
+ struct lttng_kernel_id_tracker *id_tracker = m->private;
+ struct lttng_kernel_id_tracker_rcu *id_tracker_p = id_tracker->p;
struct lttng_id_hash_node *e;
int iter = 0, i;
static
int id_list_show(struct seq_file *m, void *p)
{
- struct lttng_id_tracker *id_tracker = m->private;
- struct lttng_id_tracker_rcu *id_tracker_p = id_tracker->p;
+ struct lttng_kernel_id_tracker *id_tracker = m->private;
+ struct lttng_kernel_id_tracker_rcu *id_tracker_p = id_tracker->p;
int id;
if (p == id_tracker_p) {
id = lttng_id_tracker_get_node_id(e);
}
- switch (id_tracker->tracker_type) {
+ switch (id_tracker->priv->tracker_type) {
case TRACKER_PID:
seq_printf(m, "process { pid = %d; };\n", id);
break;
int lttng_tracker_ids_list_release(struct inode *inode, struct file *file)
{
struct seq_file *m = file->private_data;
- struct lttng_id_tracker *id_tracker = m->private;
+ struct lttng_kernel_id_tracker *id_tracker = m->private;
int ret;
WARN_ON_ONCE(!id_tracker);
ret = seq_release(inode, file);
if (!ret)
- fput(id_tracker->session->file);
+ fput(id_tracker->priv->session->priv->file);
return ret;
}
.release = lttng_tracker_ids_list_release,
};
-int lttng_session_list_tracker_ids(struct lttng_session *session,
+int lttng_session_list_tracker_ids(struct lttng_kernel_session *session,
enum tracker_type tracker_type)
{
struct file *tracker_ids_list_file;
ret = PTR_ERR(tracker_ids_list_file);
goto file_error;
}
- if (!atomic_long_add_unless(&session->file->f_count, 1, LONG_MAX)) {
+ if (!atomic_long_add_unless(&session->priv->file->f_count, 1, LONG_MAX)) {
ret = -EOVERFLOW;
goto refcount_error;
}
return file_fd;
open_error:
- atomic_long_dec(&session->file->f_count);
+ atomic_long_dec(&session->priv->file->f_count);
refcount_error:
fput(tracker_ids_list_file);
file_error:
static
void lttng_create_tracepoint_event_if_missing(struct lttng_event_enabler *event_enabler)
{
- struct lttng_session *session = event_enabler->chan->session;
+ struct lttng_kernel_session *session = event_enabler->chan->parent.session;
struct lttng_kernel_probe_desc *probe_desc;
const struct lttng_kernel_event_desc *desc;
int i;
* Check if already created.
*/
head = utils_borrow_hash_table_bucket(
- session->events_ht.table, LTTNG_EVENT_HT_SIZE,
+ session->priv->events_ht.table, LTTNG_EVENT_HT_SIZE,
desc->event_name);
lttng_hlist_for_each_entry(event_recorder_private, head, hlist) {
if (event_recorder_private->parent.desc == desc
static
int lttng_event_enabler_ref_events(struct lttng_event_enabler *event_enabler)
{
- struct lttng_channel *chan = event_enabler->chan;
- struct lttng_session *session = event_enabler->chan->session;
+ struct lttng_kernel_channel_buffer *chan = event_enabler->chan;
+ struct lttng_kernel_session *session = event_enabler->chan->parent.session;
struct lttng_enabler *base_enabler = lttng_event_enabler_as_enabler(event_enabler);
struct lttng_kernel_event_recorder_private *event_recorder_priv;
enum lttng_kernel_abi_syscall_entryexit entryexit = base_enabler->event_param.u.syscall.entryexit;
if (entryexit == LTTNG_KERNEL_ABI_SYSCALL_ENTRY || entryexit == LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT)
- WRITE_ONCE(chan->syscall_all_entry, enabled);
+ WRITE_ONCE(chan->priv->parent.syscall_all_entry, enabled);
if (entryexit == LTTNG_KERNEL_ABI_SYSCALL_EXIT || entryexit == LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT)
- WRITE_ONCE(chan->syscall_all_exit, enabled);
+ WRITE_ONCE(chan->priv->parent.syscall_all_exit, enabled);
}
/* First ensure that probe events are created for this enabler. */
lttng_create_event_if_missing(event_enabler);
/* For each event matching event_enabler in session event list. */
- list_for_each_entry(event_recorder_priv, &session->events, node) {
+ list_for_each_entry(event_recorder_priv, &session->priv->events, node) {
struct lttng_kernel_event_recorder *event_recorder = event_recorder_priv->pub;
struct lttng_enabler_ref *enabler_ref;
*/
int lttng_fix_pending_events(void)
{
- struct lttng_session *session;
+ struct lttng_kernel_session_private *session_priv;
- list_for_each_entry(session, &sessions, list)
- lttng_session_lazy_sync_event_enablers(session);
+ list_for_each_entry(session_priv, &sessions, list)
+ lttng_session_lazy_sync_event_enablers(session_priv->pub);
return 0;
}
struct lttng_event_enabler *lttng_event_enabler_create(
enum lttng_enabler_format_type format_type,
struct lttng_kernel_abi_event *event_param,
- struct lttng_channel *chan)
+ struct lttng_kernel_channel_buffer *chan)
{
struct lttng_event_enabler *event_enabler;
/* ctx left NULL */
event_enabler->base.enabled = 0;
mutex_lock(&sessions_mutex);
- list_add(&event_enabler->node, &event_enabler->chan->session->enablers_head);
- lttng_session_lazy_sync_event_enablers(event_enabler->chan->session);
+ list_add(&event_enabler->node, &event_enabler->chan->parent.session->priv->enablers_head);
+ lttng_session_lazy_sync_event_enablers(event_enabler->chan->parent.session);
mutex_unlock(&sessions_mutex);
return event_enabler;
}
{
mutex_lock(&sessions_mutex);
lttng_event_enabler_as_enabler(event_enabler)->enabled = 1;
- lttng_session_lazy_sync_event_enablers(event_enabler->chan->session);
+ lttng_session_lazy_sync_event_enablers(event_enabler->chan->parent.session);
mutex_unlock(&sessions_mutex);
return 0;
}
{
mutex_lock(&sessions_mutex);
lttng_event_enabler_as_enabler(event_enabler)->enabled = 0;
- lttng_session_lazy_sync_event_enablers(event_enabler->chan->session);
+ lttng_session_lazy_sync_event_enablers(event_enabler->chan->parent.session);
mutex_unlock(&sessions_mutex);
return 0;
}
if (ret)
goto error;
- lttng_session_lazy_sync_event_enablers(event_enabler->chan->session);
+ lttng_session_lazy_sync_event_enablers(event_enabler->chan->parent.session);
return 0;
error:
* Should be called with sessions mutex held.
*/
static
-void lttng_session_sync_event_enablers(struct lttng_session *session)
+void lttng_session_sync_event_enablers(struct lttng_kernel_session *session)
{
struct lttng_event_enabler *event_enabler;
struct lttng_kernel_event_recorder_private *event_recorder_priv;
- list_for_each_entry(event_enabler, &session->enablers_head, node)
+ list_for_each_entry(event_enabler, &session->priv->enablers_head, node)
lttng_event_enabler_ref_events(event_enabler);
/*
* For each event, if at least one of its enablers is enabled,
* and its channel and session transient states are enabled, we
* enable the event, else we disable it.
*/
- list_for_each_entry(event_recorder_priv, &session->events, node) {
+ list_for_each_entry(event_recorder_priv, &session->priv->events, node) {
struct lttng_kernel_event_recorder *event_recorder = event_recorder_priv->pub;
struct lttng_enabler_ref *enabler_ref;
struct lttng_kernel_bytecode_runtime *runtime;
* intesection of session and channel transient enable
* states.
*/
- enabled = enabled && session->tstate && event_recorder->chan->tstate;
+ enabled = enabled && session->priv->tstate && event_recorder->chan->priv->parent.tstate;
WRITE_ONCE(event_recorder->parent.enabled, enabled);
/*
* Should be called with sessions mutex held.
*/
static
-void lttng_session_lazy_sync_event_enablers(struct lttng_session *session)
+void lttng_session_lazy_sync_event_enablers(struct lttng_kernel_session *session)
{
/* We can skip if session is not active */
if (!session->active)
* was written and a negative value on error.
*/
int lttng_metadata_output_channel(struct lttng_metadata_stream *stream,
- struct channel *chan, bool *coherent)
+ struct lttng_kernel_ring_buffer_channel *chan, bool *coherent)
{
- struct lib_ring_buffer_ctx ctx;
+ struct lttng_kernel_ring_buffer_ctx ctx;
int ret = 0;
size_t len, reserve_len;
if (!len)
goto end;
reserve_len = min_t(size_t,
- stream->transport->ops.packet_avail_size(chan),
+ stream->transport->ops.priv->packet_avail_size(chan),
len);
lib_ring_buffer_ctx_init(&ctx, chan, reserve_len,
sizeof(char), NULL);
}
stream->transport->ops.event_write(&ctx,
stream->metadata_cache->data + stream->metadata_in,
- reserve_len);
+ reserve_len, 1);
stream->transport->ops.event_commit(&ctx);
stream->metadata_in += reserve_len;
if (reserve_len < len)
}
static
-void lttng_metadata_begin(struct lttng_session *session)
+void lttng_metadata_begin(struct lttng_kernel_session *session)
{
- if (atomic_inc_return(&session->metadata_cache->producing) == 1)
- mutex_lock(&session->metadata_cache->lock);
+ if (atomic_inc_return(&session->priv->metadata_cache->producing) == 1)
+ mutex_lock(&session->priv->metadata_cache->lock);
}
static
-void lttng_metadata_end(struct lttng_session *session)
+void lttng_metadata_end(struct lttng_kernel_session *session)
{
- WARN_ON_ONCE(!atomic_read(&session->metadata_cache->producing));
- if (atomic_dec_return(&session->metadata_cache->producing) == 0) {
+ WARN_ON_ONCE(!atomic_read(&session->priv->metadata_cache->producing));
+ if (atomic_dec_return(&session->priv->metadata_cache->producing) == 0) {
struct lttng_metadata_stream *stream;
- list_for_each_entry(stream, &session->metadata_cache->metadata_stream, list)
+ list_for_each_entry(stream, &session->priv->metadata_cache->metadata_stream, list)
wake_up_interruptible(&stream->read_wait);
- mutex_unlock(&session->metadata_cache->lock);
+ mutex_unlock(&session->priv->metadata_cache->lock);
}
}
* The content of the printf is printed as a single atomic metadata
* transaction.
*/
-int lttng_metadata_printf(struct lttng_session *session,
+int lttng_metadata_printf(struct lttng_kernel_session *session,
const char *fmt, ...)
{
char *str;
return -ENOMEM;
len = strlen(str);
- WARN_ON_ONCE(!atomic_read(&session->metadata_cache->producing));
- if (session->metadata_cache->metadata_written + len >
- session->metadata_cache->cache_alloc) {
+ WARN_ON_ONCE(!atomic_read(&session->priv->metadata_cache->producing));
+ if (session->priv->metadata_cache->metadata_written + len >
+ session->priv->metadata_cache->cache_alloc) {
char *tmp_cache_realloc;
unsigned int tmp_cache_alloc_size;
tmp_cache_alloc_size = max_t(unsigned int,
- session->metadata_cache->cache_alloc + len,
- session->metadata_cache->cache_alloc << 1);
+ session->priv->metadata_cache->cache_alloc + len,
+ session->priv->metadata_cache->cache_alloc << 1);
tmp_cache_realloc = vzalloc(tmp_cache_alloc_size);
if (!tmp_cache_realloc)
goto err;
- if (session->metadata_cache->data) {
+ if (session->priv->metadata_cache->data) {
memcpy(tmp_cache_realloc,
- session->metadata_cache->data,
- session->metadata_cache->cache_alloc);
- vfree(session->metadata_cache->data);
+ session->priv->metadata_cache->data,
+ session->priv->metadata_cache->cache_alloc);
+ vfree(session->priv->metadata_cache->data);
}
- session->metadata_cache->cache_alloc = tmp_cache_alloc_size;
- session->metadata_cache->data = tmp_cache_realloc;
+ session->priv->metadata_cache->cache_alloc = tmp_cache_alloc_size;
+ session->priv->metadata_cache->data = tmp_cache_realloc;
}
- memcpy(session->metadata_cache->data +
- session->metadata_cache->metadata_written,
+ memcpy(session->priv->metadata_cache->data +
+ session->priv->metadata_cache->metadata_written,
str, len);
- session->metadata_cache->metadata_written += len;
+ session->priv->metadata_cache->metadata_written += len;
kfree(str);
return 0;
}
static
-int print_tabs(struct lttng_session *session, size_t nesting)
+int print_tabs(struct lttng_kernel_session *session, size_t nesting)
{
size_t i;
}
static
-int lttng_field_name_statedump(struct lttng_session *session,
+int lttng_field_name_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting)
{
}
static
-int _lttng_integer_type_statedump(struct lttng_session *session,
+int _lttng_integer_type_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_type_integer *type,
enum lttng_kernel_string_encoding parent_encoding,
size_t nesting)
* Must be called with sessions_mutex held.
*/
static
-int _lttng_struct_type_statedump(struct lttng_session *session,
+int _lttng_struct_type_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_type_struct *type,
size_t nesting)
{
* Must be called with sessions_mutex held.
*/
static
-int _lttng_struct_field_statedump(struct lttng_session *session,
+int _lttng_struct_field_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting)
{
* Must be called with sessions_mutex held.
*/
static
-int _lttng_variant_type_statedump(struct lttng_session *session,
+int _lttng_variant_type_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_type_variant *type,
size_t nesting,
const char *prev_field_name)
* Must be called with sessions_mutex held.
*/
static
-int _lttng_variant_field_statedump(struct lttng_session *session,
+int _lttng_variant_field_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting,
const char *prev_field_name)
* Must be called with sessions_mutex held.
*/
static
-int _lttng_array_field_statedump(struct lttng_session *session,
+int _lttng_array_field_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting)
{
* Must be called with sessions_mutex held.
*/
static
-int _lttng_sequence_field_statedump(struct lttng_session *session,
+int _lttng_sequence_field_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting,
const char *prev_field_name)
* Must be called with sessions_mutex held.
*/
static
-int _lttng_enum_type_statedump(struct lttng_session *session,
+int _lttng_enum_type_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_type_enum *type,
size_t nesting)
{
* Must be called with sessions_mutex held.
*/
static
-int _lttng_enum_field_statedump(struct lttng_session *session,
+int _lttng_enum_field_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting)
{
}
static
-int _lttng_integer_field_statedump(struct lttng_session *session,
+int _lttng_integer_field_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting)
{
}
static
-int _lttng_string_type_statedump(struct lttng_session *session,
+int _lttng_string_type_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_type_string *type,
size_t nesting)
{
}
static
-int _lttng_string_field_statedump(struct lttng_session *session,
+int _lttng_string_field_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting)
{
* Must be called with sessions_mutex held.
*/
static
-int _lttng_type_statedump(struct lttng_session *session,
+int _lttng_type_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_type_common *type,
enum lttng_kernel_string_encoding parent_encoding,
size_t nesting)
* Must be called with sessions_mutex held.
*/
static
-int _lttng_field_statedump(struct lttng_session *session,
+int _lttng_field_statedump(struct lttng_kernel_session *session,
const struct lttng_kernel_event_field *field,
size_t nesting,
const char **prev_field_name_p)
}
static
-int _lttng_context_metadata_statedump(struct lttng_session *session,
+int _lttng_context_metadata_statedump(struct lttng_kernel_session *session,
struct lttng_kernel_ctx *ctx)
{
const char *prev_field_name = NULL;
}
static
-int _lttng_fields_metadata_statedump(struct lttng_session *session,
+int _lttng_fields_metadata_statedump(struct lttng_kernel_session *session,
struct lttng_kernel_event_recorder *event_recorder)
{
const char *prev_field_name = NULL;
int ret = 0;
int i;
- for (i = 0; i < desc->nr_fields; i++) {
- const struct lttng_kernel_event_field *field = desc->fields[i];
+ for (i = 0; i < desc->tp_class->nr_fields; i++) {
+ const struct lttng_kernel_event_field *field = desc->tp_class->fields[i];
ret = _lttng_field_statedump(session, field, 2, &prev_field_name);
if (ret)
* transaction.
*/
static
-int _lttng_event_metadata_statedump(struct lttng_session *session,
- struct lttng_channel *chan,
+int _lttng_event_metadata_statedump(struct lttng_kernel_session *session,
+ struct lttng_kernel_channel_buffer *chan,
struct lttng_kernel_event_recorder *event_recorder)
{
int ret = 0;
if (event_recorder->priv->metadata_dumped || !LTTNG_READ_ONCE(session->active))
return 0;
- if (chan->channel_type == METADATA_CHANNEL)
+ if (chan->priv->channel_type == METADATA_CHANNEL)
return 0;
lttng_metadata_begin(session);
" stream_id = %u;\n",
event_recorder->priv->parent.desc->event_name,
event_recorder->priv->id,
- event_recorder->chan->id);
+ event_recorder->chan->priv->id);
if (ret)
goto end;
* transaction.
*/
static
-int _lttng_channel_metadata_statedump(struct lttng_session *session,
- struct lttng_channel *chan)
+int _lttng_channel_metadata_statedump(struct lttng_kernel_session *session,
+ struct lttng_kernel_channel_buffer *chan)
{
int ret = 0;
- if (chan->metadata_dumped || !LTTNG_READ_ONCE(session->active))
+ if (chan->priv->metadata_dumped || !LTTNG_READ_ONCE(session->active))
return 0;
- if (chan->channel_type == METADATA_CHANNEL)
+ if (chan->priv->channel_type == METADATA_CHANNEL)
return 0;
lttng_metadata_begin(session);
- WARN_ON_ONCE(!chan->header_type);
+ WARN_ON_ONCE(!chan->priv->header_type);
ret = lttng_metadata_printf(session,
"stream {\n"
" id = %u;\n"
" event.header := %s;\n"
" packet.context := struct packet_context;\n",
- chan->id,
- chan->header_type == 1 ? "struct event_header_compact" :
+ chan->priv->id,
+ chan->priv->header_type == 1 ? "struct event_header_compact" :
"struct event_header_large");
if (ret)
goto end;
- if (chan->ctx) {
+ if (chan->priv->ctx) {
ret = lttng_metadata_printf(session,
" event.context := struct {\n");
if (ret)
goto end;
}
- ret = _lttng_context_metadata_statedump(session, chan->ctx);
+ ret = _lttng_context_metadata_statedump(session, chan->priv->ctx);
if (ret)
goto end;
- if (chan->ctx) {
+ if (chan->priv->ctx) {
ret = lttng_metadata_printf(session,
" };\n");
if (ret)
ret = lttng_metadata_printf(session,
"};\n\n");
- chan->metadata_dumped = 1;
+ chan->priv->metadata_dumped = 1;
end:
lttng_metadata_end(session);
return ret;
* Must be called with sessions_mutex held.
*/
static
-int _lttng_stream_packet_context_declare(struct lttng_session *session)
+int _lttng_stream_packet_context_declare(struct lttng_kernel_session *session)
{
return lttng_metadata_printf(session,
"struct packet_context {\n"
* Must be called with sessions_mutex held.
*/
static
-int _lttng_event_header_declare(struct lttng_session *session)
+int _lttng_event_header_declare(struct lttng_kernel_session *session)
{
return lttng_metadata_printf(session,
"struct event_header_compact {\n"
}
static
-int print_escaped_ctf_string(struct lttng_session *session, const char *string)
+int print_escaped_ctf_string(struct lttng_kernel_session *session, const char *string)
{
int ret = 0;
size_t i;
}
static
-int print_metadata_escaped_field(struct lttng_session *session, const char *field,
+int print_metadata_escaped_field(struct lttng_kernel_session *session, const char *field,
const char *field_value)
{
int ret;
* Must be called with sessions_mutex held.
*/
static
-int _lttng_session_metadata_statedump(struct lttng_session *session)
+int _lttng_session_metadata_statedump(struct lttng_kernel_session *session)
{
- unsigned char *uuid_c = session->uuid.b;
+ unsigned char *uuid_c = session->priv->uuid.b;
unsigned char uuid_s[37], clock_uuid_s[BOOT_ID_LEN];
const char *product_uuid;
- struct lttng_channel *chan;
+ struct lttng_kernel_channel_buffer_private *chan_priv;
struct lttng_kernel_event_recorder_private *event_recorder_priv;
int ret = 0;
lttng_metadata_begin(session);
- if (session->metadata_dumped)
+ if (session->priv->metadata_dumped)
goto skip_session;
snprintf(uuid_s, sizeof(uuid_s),
if (ret)
goto end;
- ret = print_metadata_escaped_field(session, "trace_name", session->name);
+ ret = print_metadata_escaped_field(session, "trace_name", session->priv->name);
if (ret)
goto end;
ret = print_metadata_escaped_field(session, "trace_creation_datetime",
- session->creation_time);
+ session->priv->creation_time);
if (ret)
goto end;
goto end;
skip_session:
- list_for_each_entry(chan, &session->chan, list) {
- ret = _lttng_channel_metadata_statedump(session, chan);
+ list_for_each_entry(chan_priv, &session->priv->chan, node) {
+ ret = _lttng_channel_metadata_statedump(session, chan_priv->pub);
if (ret)
goto end;
}
- list_for_each_entry(event_recorder_priv, &session->events, node) {
+ list_for_each_entry(event_recorder_priv, &session->priv->events, node) {
ret = _lttng_event_metadata_statedump(session, event_recorder_priv->pub->chan,
event_recorder_priv->pub);
if (ret)
goto end;
}
- session->metadata_dumped = 1;
+ session->priv->metadata_dumped = 1;
end:
lttng_metadata_end(session);
return ret;
}
#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) */
-
static int __init lttng_events_init(void)
{
int ret;
static void __exit lttng_events_exit(void)
{
- struct lttng_session *session, *tmpsession;
+ struct lttng_kernel_session_private *session_priv, *tmpsession_priv;
lttng_exit_cpu_hotplug();
lttng_logger_exit();
lttng_abi_exit();
- list_for_each_entry_safe(session, tmpsession, &sessions, list)
- lttng_session_destroy(session);
+ list_for_each_entry_safe(session_priv, tmpsession_priv, &sessions, list)
+ lttng_session_destroy(session_priv->pub);
kmem_cache_destroy(event_recorder_cache);
kmem_cache_destroy(event_recorder_private_cache);
kmem_cache_destroy(event_notifier_cache);
projects / lttng-modules.git / blobdiff