static void _lttng_event_destroy(struct lttng_kernel_event_common *event);
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_recorder_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_kernel_session *session,
WARN_ON(ret);
}
list_for_each_entry(event_recorder_priv, &session->priv->events, node) {
- ret = _lttng_event_unregister(event_recorder_priv->pub);
+ ret = _lttng_event_recorder_unregister(event_recorder_priv->pub);
WARN_ON(ret);
}
synchronize_trace(); /* Wait for in-flight events to complete */
list_for_each_entry(chan_priv, &session->priv->chan, node) {
- ret = lttng_syscalls_destroy_event(chan_priv->pub);
+ ret = lttng_syscalls_destroy_channel(chan_priv->pub);
WARN_ON(ret);
}
list_for_each_entry_safe(event_recorder_enabler, tmp_event_recorder_enabler,
return ret;
}
-int lttng_channel_enable(struct lttng_kernel_channel_buffer *channel)
+static
+bool is_channel_buffer_metadata(struct lttng_kernel_channel_common *channel)
+{
+ struct lttng_kernel_channel_buffer *chan_buf;
+
+ if (channel->type != LTTNG_KERNEL_CHANNEL_TYPE_BUFFER)
+ return false;
+ chan_buf = container_of(channel, struct lttng_kernel_channel_buffer, parent);
+ if (chan_buf->priv->channel_type == METADATA_CHANNEL)
+ return true;
+ return false;
+}
+
+int lttng_channel_enable(struct lttng_kernel_channel_common *channel)
{
int ret = 0;
mutex_lock(&sessions_mutex);
- if (channel->priv->channel_type == METADATA_CHANNEL) {
+ if (is_channel_buffer_metadata(channel)) {
ret = -EPERM;
goto end;
}
- if (channel->parent.enabled) {
+ if (channel->enabled) {
ret = -EEXIST;
goto end;
}
/* Set transient enabler state to "enabled" */
- channel->priv->parent.tstate = 1;
- lttng_session_sync_event_enablers(channel->parent.session);
+ channel->priv->tstate = 1;
+ lttng_session_sync_event_enablers(channel->session);
/* Set atomically the state to "enabled" */
- WRITE_ONCE(channel->parent.enabled, 1);
+ WRITE_ONCE(channel->enabled, 1);
end:
mutex_unlock(&sessions_mutex);
return ret;
}
-int lttng_channel_disable(struct lttng_kernel_channel_buffer *channel)
+int lttng_channel_disable(struct lttng_kernel_channel_common *channel)
{
int ret = 0;
mutex_lock(&sessions_mutex);
- if (channel->priv->channel_type == METADATA_CHANNEL) {
+ if (is_channel_buffer_metadata(channel)) {
ret = -EPERM;
goto end;
}
- if (!channel->parent.enabled) {
+ if (!channel->enabled) {
ret = -EEXIST;
goto end;
}
/* Set atomically the state to "disabled" */
- WRITE_ONCE(channel->parent.enabled, 0);
+ WRITE_ONCE(channel->enabled, 0);
/* Set transient enabler state to "enabled" */
- channel->priv->parent.tstate = 0;
- lttng_session_sync_event_enablers(channel->parent.session);
+ channel->priv->tstate = 0;
+ lttng_session_sync_event_enablers(channel->session);
end:
mutex_unlock(&sessions_mutex);
return ret;
return ret;
}
-struct lttng_kernel_channel_buffer *lttng_channel_create(struct lttng_kernel_session *session,
+struct lttng_kernel_channel_buffer *lttng_channel_buffer_create(struct lttng_kernel_session *session,
const char *transport_name,
void *buf_addr,
size_t subbuf_size, size_t num_subbuf,
/* Only used for tracepoints for now. */
static
-void register_event(struct lttng_kernel_event_recorder *event_recorder)
+void register_event_recorder(struct lttng_kernel_event_recorder *event_recorder)
{
const struct lttng_kernel_event_desc *desc;
int ret = -EINVAL;
/*
* Only used internally at session destruction.
*/
-int _lttng_event_unregister(struct lttng_kernel_event_recorder *event_recorder)
+int _lttng_event_recorder_unregister(struct lttng_kernel_event_recorder *event_recorder)
{
struct lttng_kernel_event_common_private *event_priv = &event_recorder->priv->parent;
const struct lttng_kernel_event_desc *desc;
* state.
*/
if (enabled) {
- register_event(event_recorder);
+ register_event_recorder(event_recorder);
} else {
- _lttng_event_unregister(event_recorder);
+ _lttng_event_recorder_unregister(event_recorder);
}
/* Check if has enablers without bytecode enabled */