#include <common/macros.h>
#include <lttng/condition/condition.h>
#include <lttng/action/action-internal.h>
+#include <lttng/action/group-internal.h>
+#include <lttng/domain-internal.h>
#include <lttng/notification/notification-internal.h>
#include <lttng/condition/condition-internal.h>
#include <lttng/condition/buffer-usage-internal.h>
#include <lttng/condition/session-consumed-size-internal.h>
#include <lttng/condition/session-rotation-internal.h>
-#include <lttng/condition/event-rule-internal.h>
+#include <lttng/condition/on-event-internal.h>
#include <lttng/domain-internal.h>
#include <lttng/notification/channel-internal.h>
#include <lttng/trigger/trigger-internal.h>
#include <fcntl.h>
#include "condition-internal.h"
+#include "event-notifier-error-accounting.h"
#include "notification-thread.h"
#include "notification-thread-events.h"
#include "notification-thread-commands.h"
#define CLIENT_POLL_MASK_IN (LPOLLIN | LPOLLERR | LPOLLHUP | LPOLLRDHUP)
#define CLIENT_POLL_MASK_IN_OUT (CLIENT_POLL_MASK_IN | LPOLLOUT)
+/* The tracers currently limit the capture size to PIPE_BUF (4kb on linux). */
+#define MAX_CAPTURE_SIZE (PIPE_BUF)
+
enum lttng_object_type {
LTTNG_OBJECT_TYPE_UNKNOWN,
LTTNG_OBJECT_TYPE_NONE,
struct cds_list_head node;
};
-/*
- * Facilities to carry the different notifications type in the action processing
- * code path.
- */
-struct lttng_event_notifier_notification {
- union {
- struct lttng_ust_event_notifier_notification *ust;
- struct lttng_kernel_event_notifier_notification *kernel;
- } notification;
- uint64_t token;
- enum lttng_domain_type type;
-};
-
struct channel_state_sample {
struct channel_key key;
struct cds_lfht_node channel_state_ht_node;
enum client_transmission_status transmission_status,
struct notification_thread_state *state);
+static
+int handle_one_event_notifier_notification(
+ struct notification_thread_state *state,
+ int pipe, enum lttng_domain_type domain);
+
static
void free_lttng_trigger_ht_element_rcu(struct rcu_head *node);
case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING:
case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED:
return LTTNG_OBJECT_TYPE_SESSION;
- case LTTNG_CONDITION_TYPE_EVENT_RULE_HIT:
+ case LTTNG_CONDITION_TYPE_ON_EVENT:
return LTTNG_OBJECT_TYPE_NONE;
default:
return LTTNG_OBJECT_TYPE_UNKNOWN;
DBG("[notification-thread] Adding channel %s from session %s, channel key = %" PRIu64 " in %s domain",
channel_name, session_name, channel_key_int,
- channel_domain == LTTNG_DOMAIN_KERNEL ? "kernel" : "user space");
+ lttng_domain_type_str(channel_domain));
CDS_INIT_LIST_HEAD(&trigger_list);
struct channel_info *channel_info;
DBG("[notification-thread] Removing channel key = %" PRIu64 " in %s domain",
- channel_key, domain == LTTNG_DOMAIN_KERNEL ? "kernel" : "user space");
+ channel_key, lttng_domain_type_str(domain));
rcu_read_lock();
return ret;
}
+static
+int drain_event_notifier_notification_pipe(
+ struct notification_thread_state *state,
+ int pipe, enum lttng_domain_type domain)
+{
+ struct lttng_poll_event events = {0};
+ int ret;
+
+ ret = lttng_poll_create(&events, 1, LTTNG_CLOEXEC);
+ if (ret < 0) {
+ ERR("[notification-thread] Error creating lttng_poll_event");
+ goto end;
+ }
+
+ ret = lttng_poll_add(&events, pipe, LPOLLIN);
+ if (ret < 0) {
+ ERR("[notification-thread] Error adding fd event notifier notification pipe to lttng_poll_event: fd = %d",
+ pipe);
+ goto end;
+ }
+
+ while (true) {
+ /*
+ * Continue to consume notifications as long as there are new
+ * ones coming in. The tracer has been asked to stop producing
+ * them.
+ *
+ * LPOLLIN is explicitly checked since LPOLLHUP is implicitly
+ * monitored (on Linux, at least) and will be returned when
+ * the pipe is closed but empty.
+ */
+ ret = lttng_poll_wait_interruptible(&events, 0);
+ if (ret == 0 || (LTTNG_POLL_GETEV(&events, 0) & LPOLLIN) == 0) {
+ /* No more notification to be read on this pipe. */
+ ret = 0;
+ goto end;
+ } else if (ret < 0) {
+ PERROR("Failed on lttng_poll_wait_interruptible() call");
+ ret = -1;
+ goto end;
+ }
+
+ ret = handle_one_event_notifier_notification(state, pipe, domain);
+ if (ret) {
+ ERR("[notification-thread] Error consuming an event notifier notification from pipe: fd = %d",
+ pipe);
+ }
+ }
+end:
+ lttng_poll_clean(&events);
+ return ret;
+}
+
static
int handle_notification_thread_command_remove_tracer_event_source(
struct notification_thread_state *state,
source_element->is_fd_in_poll_set = false;
+ ret = drain_event_notifier_notification_pipe(state, tracer_event_source_fd,
+ source_element->domain);
+ if (ret) {
+ ERR("[notification-thread] Error draining event notifier notification: tracer_event_source_fd = %d, domain = %s",
+ tracer_event_source_fd,
+ lttng_domain_type_str(source_element->domain));
+ cmd_result = LTTNG_ERR_FATAL;
+ goto end;
+ }
+
+ /*
+ * The drain_event_notifier_notification_pipe() call might have read
+ * data from an fd that we received in event in the latest _poll_wait()
+ * call. Make sure the thread call poll_wait() again to ensure we have
+ * a clean state.
+ */
+ state->restart_poll = true;
+
end:
free(source_element);
*_cmd_result = cmd_result;
return ret;
}
+static
+int condition_on_event_update_error_count(struct lttng_trigger *trigger)
+{
+ int ret = 0;
+ uint64_t error_count = 0;
+ struct lttng_condition *condition;
+ enum event_notifier_error_accounting_status status;
+
+ condition = lttng_trigger_get_condition(trigger);
+ assert(lttng_condition_get_type(condition) ==
+ LTTNG_CONDITION_TYPE_ON_EVENT);
+
+ status = event_notifier_error_accounting_get_count(trigger, &error_count);
+ if (status != EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK) {
+ uid_t trigger_owner_uid;
+ const char *trigger_name;
+ const enum lttng_trigger_status trigger_status =
+ lttng_trigger_get_owner_uid(
+ trigger, &trigger_owner_uid);
+
+ assert(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+ if (lttng_trigger_get_name(trigger, &trigger_name) != LTTNG_TRIGGER_STATUS_OK) {
+ trigger_name = "(unnamed)";
+ }
+
+ ERR("Failed to get event notifier error count of trigger for update: trigger owner = %d, trigger name = '%s'",
+ trigger_owner_uid, trigger_name);
+ ret = -1;
+ }
+
+ lttng_condition_on_event_set_error_count(condition, error_count);
+ return ret;
+}
+
int handle_notification_thread_remove_tracer_event_source_no_result(
struct notification_thread_state *state,
int tracer_event_source_fd)
return ret;
}
+static
+bool action_type_needs_tracer_notifier(enum lttng_action_type action_type)
+{
+ switch (action_type) {
+ case LTTNG_ACTION_TYPE_NOTIFY:
+ case LTTNG_ACTION_TYPE_START_SESSION:
+ case LTTNG_ACTION_TYPE_STOP_SESSION:
+ case LTTNG_ACTION_TYPE_SNAPSHOT_SESSION:
+ case LTTNG_ACTION_TYPE_ROTATE_SESSION:
+ return true;
+ case LTTNG_ACTION_TYPE_GROUP:
+ case LTTNG_ACTION_TYPE_UNKNOWN:
+ default:
+ abort();
+ }
+}
+
+static
+bool action_needs_tracer_notifier(const struct lttng_action *action)
+{
+ bool needs_tracer_notifier = false;
+ unsigned int i, count;
+ enum lttng_action_status action_status;
+ enum lttng_action_type action_type;
+
+ assert(action);
+ /* If there is only one action. Check if it needs a tracer notifier. */
+ action_type = lttng_action_get_type(action);
+ if (action_type != LTTNG_ACTION_TYPE_GROUP) {
+ needs_tracer_notifier = action_type_needs_tracer_notifier(
+ action_type);
+ goto end;
+ }
+
+ /*
+ * Iterate over all the actions of the action group and check if any of
+ * them needs a tracer notifier.
+ */
+ action_status = lttng_action_group_get_count(action, &count);
+ assert(action_status == LTTNG_ACTION_STATUS_OK);
+ for (i = 0; i < count; i++) {
+ const struct lttng_action *inner_action =
+ lttng_action_group_get_at_index(action, i);
+
+ action_type = lttng_action_get_type(inner_action);
+ if (action_type_needs_tracer_notifier(action_type)) {
+ needs_tracer_notifier = true;
+ goto end;
+ }
+ }
+
+end:
+ return needs_tracer_notifier;
+}
+
+/*
+ * A given trigger needs a tracer notifier if
+ * it has an event-rule condition,
+ * AND
+ * it has one or more sessiond-execution action.
+ */
+static
+bool trigger_needs_tracer_notifier(const struct lttng_trigger *trigger)
+{
+ bool needs_tracer_notifier = false;
+ const struct lttng_condition *condition =
+ lttng_trigger_get_const_condition(trigger);
+ const struct lttng_action *action =
+ lttng_trigger_get_const_action(trigger);
+
+ switch (lttng_condition_get_type(condition)) {
+ case LTTNG_CONDITION_TYPE_ON_EVENT:
+ needs_tracer_notifier = action_needs_tracer_notifier(action);
+ goto end;
+ case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE:
+ case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH:
+ case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW:
+ case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING:
+ case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED:
+ goto end;
+ case LTTNG_CONDITION_TYPE_UNKNOWN:
+ default:
+ abort();
+ }
+end:
+ return needs_tracer_notifier;
+}
+
static int handle_notification_thread_command_list_triggers(
struct notification_thread_handle *handle,
struct notification_thread_state *state,
continue;
}
+ if (trigger_needs_tracer_notifier(trigger_ht_element->trigger)) {
+ ret = condition_on_event_update_error_count(
+ trigger_ht_element->trigger);
+ assert(!ret);
+ }
+
ret = lttng_triggers_add(local_triggers,
trigger_ht_element->trigger);
if (ret < 0) {
is_supported = kernel_supports_ring_buffer_snapshot_sample_positions() == 1;
break;
}
- case LTTNG_CONDITION_TYPE_EVENT_RULE_HIT:
+ case LTTNG_CONDITION_TYPE_ON_EVENT:
{
const struct lttng_event_rule *event_rule;
enum lttng_domain_type domain;
const enum lttng_condition_status status =
- lttng_condition_event_rule_get_rule(
+ lttng_condition_on_event_get_rule(
condition, &event_rule);
assert(status == LTTNG_CONDITION_STATUS_OK);
goto error_free_ht_element;
}
- if (lttng_condition_get_type(condition) == LTTNG_CONDITION_TYPE_EVENT_RULE_HIT) {
+ if (lttng_condition_get_type(condition) == LTTNG_CONDITION_TYPE_ON_EVENT) {
trigger_tokens_ht_element = zmalloc(sizeof(*trigger_tokens_ht_element));
if (!trigger_tokens_ht_element) {
/* Fatal error. */
&trigger_ht_element->node_by_name_uid);
goto error_free_ht_element;
}
+
+ if (trigger_needs_tracer_notifier(trigger)) {
+ uint64_t error_counter_index = 0;
+ enum event_notifier_error_accounting_status error_accounting_status;
+
+ error_accounting_status = event_notifier_error_accounting_register_event_notifier(
+ trigger, &error_counter_index);
+ if (error_accounting_status != EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_OK) {
+ if (error_accounting_status == EVENT_NOTIFIER_ERROR_ACCOUNTING_STATUS_NO_INDEX_AVAILABLE) {
+ DBG("Event notifier group error accounting map is full");
+ *cmd_result = LTTNG_ERR_EVENT_NOTIFIER_ERROR_ACCOUNTING_FULL;
+ } else {
+ ERR("Failed to register event notifier for error accounting");
+ *cmd_result = LTTNG_ERR_EVENT_NOTIFIER_REGISTRATION;
+ }
+
+ cds_lfht_del(state->triggers_ht, &trigger_ht_element->node);
+ cds_lfht_del(state->triggers_by_name_uid_ht, &trigger_ht_element->node_by_name_uid);
+ cds_lfht_del(state->trigger_tokens_ht, &trigger_tokens_ht_element->node);
+ goto error_free_ht_element;
+ }
+
+ lttng_condition_on_event_set_error_counter_index(
+ condition, error_counter_index);
+ }
+
}
/*
ret = evaluate_session_condition_for_client(condition, state,
&evaluation, &object_uid,
&object_gid);
+ LTTNG_OPTIONAL_SET(&object_creds.uid, object_uid);
+ LTTNG_OPTIONAL_SET(&object_creds.gid, object_gid);
break;
case LTTNG_OBJECT_TYPE_CHANNEL:
ret = evaluate_channel_condition_for_client(condition, state,
&evaluation, &object_uid,
&object_gid);
+ LTTNG_OPTIONAL_SET(&object_creds.uid, object_uid);
+ LTTNG_OPTIONAL_SET(&object_creds.gid, object_gid);
break;
case LTTNG_OBJECT_TYPE_NONE:
ret = 0;
goto error_put_client_list;
}
- LTTNG_OPTIONAL_SET(&object_creds.uid, object_uid);
- LTTNG_OPTIONAL_SET(&object_creds.gid, object_gid);
-
DBG("Newly registered trigger's condition evaluated to %s",
evaluation ? "true" : "false");
if (!evaluation) {
}
if (lttng_condition_get_type(condition) ==
- LTTNG_CONDITION_TYPE_EVENT_RULE_HIT) {
+ LTTNG_CONDITION_TYPE_ON_EVENT) {
struct notification_trigger_tokens_ht_element
*trigger_tokens_ht_element;
continue;
}
+ if (trigger_needs_tracer_notifier(trigger_tokens_ht_element->trigger)) {
+ event_notifier_error_accounting_unregister_event_notifier(
+ trigger_tokens_ht_element->trigger);
+ }
+
DBG("[notification-thread] Removed trigger from tokens_ht");
cds_lfht_del(state->trigger_tokens_ht,
&trigger_tokens_ht_element->node);
return ret;
}
-int handle_notification_thread_event_notification(struct notification_thread_state *state,
- int notification_pipe_read_fd,
- enum lttng_domain_type domain)
+static
+struct lttng_event_notifier_notification *recv_one_event_notifier_notification(
+ int notification_pipe_read_fd, enum lttng_domain_type domain)
{
int ret;
- struct lttng_ust_event_notifier_notification ust_notification;
- struct lttng_kernel_event_notifier_notification kernel_notification;
- struct cds_lfht_node *node;
- struct cds_lfht_iter iter;
- struct notification_trigger_tokens_ht_element *element;
- enum lttng_action_type action_type;
- const struct lttng_action *action;
- struct lttng_event_notifier_notification notification;
+ uint64_t token;
+ struct lttng_event_notifier_notification *notification = NULL;
+ char *capture_buffer = NULL;
+ size_t capture_buffer_size;
void *reception_buffer;
size_t reception_size;
- notification.type = domain;
+ struct lttng_ust_abi_event_notifier_notification ust_notification;
+ struct lttng_kernel_event_notifier_notification kernel_notification;
+ /* Init lttng_event_notifier_notification */
switch(domain) {
case LTTNG_DOMAIN_UST:
reception_buffer = (void *) &ust_notification;
reception_size = sizeof(ust_notification);
- notification.notification.ust = &ust_notification;
break;
case LTTNG_DOMAIN_KERNEL:
reception_buffer = (void *) &kernel_notification;
reception_size = sizeof(kernel_notification);
- notification.notification.kernel = &kernel_notification;
break;
default:
abort();
switch(domain) {
case LTTNG_DOMAIN_UST:
- notification.token = ust_notification.token;
+ token = ust_notification.token;
+ capture_buffer_size = ust_notification.capture_buf_size;
break;
case LTTNG_DOMAIN_KERNEL:
- notification.token = kernel_notification.token;
+ token = kernel_notification.token;
+ capture_buffer_size = kernel_notification.capture_buf_size;
break;
default:
abort();
}
+ if (capture_buffer_size == 0) {
+ capture_buffer = NULL;
+ goto skip_capture;
+ }
+
+ if (capture_buffer_size > MAX_CAPTURE_SIZE) {
+ ERR("[notification-thread] Event notifier has a capture payload size which exceeds the maximum allowed size: capture_payload_size = %zu bytes, max allowed size = %d bytes",
+ capture_buffer_size, MAX_CAPTURE_SIZE);
+ goto end;
+ }
+
+ capture_buffer = zmalloc(capture_buffer_size);
+ if (!capture_buffer) {
+ ERR("[notification-thread] Failed to allocate capture buffer");
+ goto end;
+ }
+
+ /* Fetch additional payload (capture). */
+ ret = lttng_read(notification_pipe_read_fd, capture_buffer, capture_buffer_size);
+ if (ret != capture_buffer_size) {
+ ERR("[notification-thread] Failed to read from event source pipe (fd = %i)",
+ notification_pipe_read_fd);
+ goto end;
+ }
+
+skip_capture:
+ notification = lttng_event_notifier_notification_create(token, domain,
+ capture_buffer, capture_buffer_size);
+ if (notification == NULL) {
+ goto end;
+ }
+
+ /*
+ * Ownership transfered to the lttng_event_notifier_notification object.
+ */
+ capture_buffer = NULL;
+
+end:
+ free(capture_buffer);
+ return notification;
+}
+
+static
+int dispatch_one_event_notifier_notification(struct notification_thread_state *state,
+ struct lttng_event_notifier_notification *notification)
+{
+ struct cds_lfht_node *node;
+ struct cds_lfht_iter iter;
+ struct notification_trigger_tokens_ht_element *element;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_evaluation *evaluation = NULL;
+ enum action_executor_status executor_status;
+ struct notification_client_list *client_list = NULL;
+ const char *trigger_name;
+ int ret;
+ unsigned int capture_count = 0;
+
/* Find triggers associated with this token. */
rcu_read_lock();
cds_lfht_lookup(state->trigger_tokens_ht,
- hash_key_u64(¬ification.token, lttng_ht_seed),
- match_trigger_token, ¬ification.token, &iter);
+ hash_key_u64(¬ification->tracer_token, lttng_ht_seed),
+ match_trigger_token, ¬ification->tracer_token, &iter);
node = cds_lfht_iter_get_node(&iter);
- if (caa_likely(!node)) {
+ if (caa_unlikely(!node)) {
/*
- * This is not an error, slow consumption of the pipe can lead
- * to situations where a trigger is removed but we still get
- * tracer notification matching to a previous trigger.
+ * This is not an error, slow consumption of the tracer
+ * notifications can lead to situations where a trigger is
+ * removed but we still get tracer notifications matching a
+ * trigger that no longer exists.
*/
ret = 0;
goto end_unlock;
struct notification_trigger_tokens_ht_element,
node);
- action = lttng_trigger_get_const_action(element->trigger);
- action_type = lttng_action_get_type(action);
- DBG("Received message from tracer event source: event source fd = %d, token = %" PRIu64 ", action type = '%s'",
- notification_pipe_read_fd, notification.token,
- lttng_action_type_string(action_type));
+ if (!lttng_trigger_should_fire(element->trigger)) {
+ ret = 0;
+ goto end_unlock;
+ }
- /* TODO: Perform actions */
+ lttng_trigger_fire(element->trigger);
- ret = 0;
+ trigger_status = lttng_trigger_get_name(element->trigger, &trigger_name);
+ assert(trigger_status == LTTNG_TRIGGER_STATUS_OK);
+
+ if (lttng_condition_on_event_get_capture_descriptor_count(
+ lttng_trigger_get_const_condition(element->trigger),
+ &capture_count) != LTTNG_CONDITION_STATUS_OK) {
+ ERR("Failed to get capture count");
+ ret = -1;
+ goto end;
+ }
+
+ if (!notification->capture_buffer && capture_count != 0) {
+ ERR("Expected capture but capture buffer is null");
+ ret = -1;
+ goto end;
+ }
+
+ evaluation = lttng_evaluation_on_event_create(
+ container_of(lttng_trigger_get_const_condition(
+ element->trigger),
+ struct lttng_condition_on_event,
+ parent),
+ trigger_name,
+ notification->capture_buffer,
+ notification->capture_buf_size, false);
+
+ if (evaluation == NULL) {
+ ERR("[notification-thread] Failed to create event rule hit evaluation while creating and enqueuing action executor job");
+ ret = -1;
+ goto end_unlock;
+ }
+ client_list = get_client_list_from_condition(state,
+ lttng_trigger_get_const_condition(element->trigger));
+ executor_status = action_executor_enqueue(state->executor,
+ element->trigger, evaluation, NULL, client_list);
+ switch (executor_status) {
+ case ACTION_EXECUTOR_STATUS_OK:
+ ret = 0;
+ break;
+ case ACTION_EXECUTOR_STATUS_OVERFLOW:
+ {
+ struct notification_client_list_element *client_list_element,
+ *tmp;
+
+ /*
+ * Not a fatal error; this is expected and simply means the
+ * executor has too much work queued already.
+ */
+ ret = 0;
+
+ /* No clients subscribed to notifications for this trigger. */
+ if (!client_list) {
+ break;
+ }
+
+ /* Warn clients that a notification (or more) was dropped. */
+ pthread_mutex_lock(&client_list->lock);
+ cds_list_for_each_entry_safe(client_list_element, tmp,
+ &client_list->list, node) {
+ enum client_transmission_status transmission_status;
+ struct notification_client *client =
+ client_list_element->client;
+
+ pthread_mutex_lock(&client->lock);
+ ret = client_notification_overflow(client);
+ if (ret) {
+ /* Fatal error. */
+ goto next_client;
+ }
+
+ transmission_status =
+ client_flush_outgoing_queue(client);
+ ret = client_handle_transmission_status(
+ client, transmission_status, state);
+ if (ret) {
+ /* Fatal error. */
+ goto next_client;
+ }
+next_client:
+ pthread_mutex_unlock(&client->lock);
+ if (ret) {
+ break;
+ }
+ }
+
+ pthread_mutex_unlock(&client_list->lock);
+ break;
+ }
+ case ACTION_EXECUTOR_STATUS_INVALID:
+ case ACTION_EXECUTOR_STATUS_ERROR:
+ /* Fatal error, shut down everything. */
+ ERR("Fatal error encoutered while enqueuing action to the action executor");
+ ret = -1;
+ goto end_unlock;
+ default:
+ /* Unhandled error. */
+ abort();
+ }
end_unlock:
+ notification_client_list_put(client_list);
rcu_read_unlock();
end:
return ret;
}
+static
+int handle_one_event_notifier_notification(
+ struct notification_thread_state *state,
+ int pipe, enum lttng_domain_type domain)
+{
+ int ret = 0;
+ struct lttng_event_notifier_notification *notification = NULL;
+
+ notification = recv_one_event_notifier_notification(pipe, domain);
+ if (notification == NULL) {
+ /* Reception failed, don't consider it fatal. */
+ ERR("[notification-thread] Error receiving an event notifier notification from tracer: fd = %i, domain = %s",
+ pipe, lttng_domain_type_str(domain));
+ goto end;
+ }
+
+ ret = dispatch_one_event_notifier_notification(state, notification);
+ if (ret) {
+ ERR("[notification-thread] Error dispatching an event notifier notification from tracer: fd = %i, domain = %s",
+ pipe, lttng_domain_type_str(domain));
+ goto end;
+ }
+
+end:
+ lttng_event_notifier_notification_destroy(notification);
+ return ret;
+}
+
+int handle_notification_thread_event_notification(struct notification_thread_state *state,
+ int pipe, enum lttng_domain_type domain)
+{
+ return handle_one_event_notifier_notification(state, pipe, domain);
+}
+
int handle_notification_thread_channel_sample(
struct notification_thread_state *state, int pipe,
enum lttng_domain_type domain)
*/
DBG("[notification-thread] Received a sample for an unknown channel from consumerd, key = %" PRIu64 " in %s domain",
latest_sample.key.key,
- domain == LTTNG_DOMAIN_KERNEL ? "kernel" :
- "user space");
+ lttng_domain_type_str(domain));
goto end_unlock;
}
channel_info = caa_container_of(node, struct channel_info,
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