#include <common/dynamic-array.h>
#include <common/error.h>
#include <common/macros.h>
+#include <common/mi-lttng.h>
#include <common/sessiond-comm/sessiond-comm.h>
#include <lttng/action/action-internal.h>
-#include <lttng/action/group-internal.h>
+#include <lttng/action/list-internal.h>
+#include <lttng/action/path-internal.h>
#include <lttng/error-query-internal.h>
#include <lttng/error-query.h>
#include <lttng/trigger/trigger-internal.h>
struct lttng_trigger *trigger;
};
-struct lttng_error_query_action_comm {
- LTTNG_OPTIONAL_COMM(uint32_t) action_index;
- /* Trigger payload. */
- char payload[];
+struct lttng_error_query_condition {
+ struct lttng_error_query parent;
+ /* Mutable only because of the reference count. */
+ struct lttng_trigger *trigger;
};
struct lttng_error_query_action {
struct lttng_error_query parent;
/* Mutable only because of the reference count. */
struct lttng_trigger *trigger;
- /*
- * Index of the target action. Since action lists can't be nested,
- * the targetted action is the top-level group if the action_index is
- * unset. Otherwise, the index refers to the index within the top-level
- * group.
- */
- LTTNG_OPTIONAL(unsigned int) action_index;
+ struct lttng_action_path action_path;
};
struct lttng_error_query_result {
struct lttng_dynamic_pointer_array results;
};
+static
+enum lttng_error_code lttng_error_query_result_mi_serialize(
+ const struct lttng_error_query_result *result,
+ struct mi_writer *writer);
+
+static
+enum lttng_error_code lttng_error_query_result_counter_mi_serialize(
+ const struct lttng_error_query_result *result,
+ struct mi_writer *writer);
struct lttng_error_query *lttng_error_query_trigger_create(
const struct lttng_trigger *trigger)
return query ? &query->parent : NULL;
}
-extern struct lttng_error_query *lttng_error_query_action_create(
- const struct lttng_trigger *trigger,
- const struct lttng_action *action)
+struct lttng_error_query *lttng_error_query_condition_create(
+ const struct lttng_trigger *trigger)
{
- struct lttng_error_query_action *query = NULL;
- typeof(query->action_index) action_index;
+ struct lttng_error_query_condition *query = NULL;
struct lttng_trigger *trigger_copy = NULL;
- if (!trigger || !action) {
+ if (!trigger) {
goto end;
}
goto end;
}
+ query = zmalloc(sizeof(*query));
+ if (!query) {
+ PERROR("Failed to allocate condition error query");
+ goto error;
+ }
+
+ query->parent.target_type = LTTNG_ERROR_QUERY_TARGET_TYPE_CONDITION;
+ query->trigger = trigger_copy;
+ trigger_copy = NULL;
+
+error:
+ lttng_trigger_put(trigger_copy);
+end:
+ return query ? &query->parent : NULL;
+}
+
+static
+struct lttng_action *get_trigger_action_from_path(
+ struct lttng_trigger *trigger,
+ const struct lttng_action_path *action_path)
+{
+ size_t index_count, i;
+ enum lttng_action_path_status path_status;
+ struct lttng_action *current_action = NULL;
+
+ path_status = lttng_action_path_get_index_count(
+ action_path, &index_count);
+ if (path_status != LTTNG_ACTION_PATH_STATUS_OK) {
+ goto end;
+ }
+
+ current_action = lttng_trigger_get_action(trigger);
+ for (i = 0; i < index_count; i++) {
+ uint64_t path_index;
+
+ path_status = lttng_action_path_get_index_at_index(
+ action_path, i, &path_index);
+ current_action = lttng_action_list_borrow_mutable_at_index(
+ current_action, path_index);
+ if (!current_action) {
+ /* Invalid action path. */
+ goto end;
+ }
+ }
+
+end:
+ return current_action;
+}
+
+static
+bool is_valid_action_path(const struct lttng_trigger *trigger,
+ const struct lttng_action_path *action_path)
+{
/*
- * If an action is not the top-level action of the trigger, our only
- * hope of finding its position is if the top-level action is an
- * action list.
- *
- * Note that action comparisons are performed by pointer since multiple
- * otherwise identical actions can be found in an action group (two
- * notify actions, for example).
+ * While 'trigger's constness is casted-away, the trigger and resulting
+ * action are not modified; we merely check for the action's existence.
*/
- if (action != trigger->action &&
- lttng_action_get_type(trigger->action) ==
- LTTNG_ACTION_TYPE_GROUP) {
- unsigned int i, action_group_count;
- enum lttng_action_status action_status;
-
- action_status = lttng_action_group_get_count(
- trigger->action, &action_group_count);
- if (action_status != LTTNG_ACTION_STATUS_OK) {
- goto error;
- }
+ return !!get_trigger_action_from_path(
+ (struct lttng_trigger *) trigger, action_path);
+}
- for (i = 0; i < action_group_count; i++) {
- const struct lttng_action *candidate_action =
- lttng_action_group_get_at_index(
- trigger->action, i);
+struct lttng_error_query *lttng_error_query_action_create(
+ const struct lttng_trigger *trigger,
+ const struct lttng_action_path *action_path)
+{
+ struct lttng_error_query_action *query = NULL;
+ struct lttng_trigger *trigger_copy = NULL;
+ int ret_copy;
- assert(candidate_action);
- if (candidate_action == action) {
- LTTNG_OPTIONAL_SET(&action_index, i);
- break;
- }
- }
+ if (!trigger || !action_path ||
+ !is_valid_action_path(trigger, action_path)) {
+ goto end;
+ }
- if (!action_index.is_set) {
- /* Not found; invalid action. */
- goto error;
- }
- } else {
- /*
- * Trigger action is not a group and not equal to the target
- * action; invalid action provided.
- */
- goto error;
+ trigger_copy = lttng_trigger_copy(trigger);
+ if (!trigger_copy) {
+ goto end;
}
query = zmalloc(sizeof(*query));
goto error;
}
+ ret_copy = lttng_action_path_copy(action_path, &query->action_path);
+ if (ret_copy) {
+ goto error;
+ }
+
query->parent.target_type = LTTNG_ERROR_QUERY_TARGET_TYPE_ACTION;
query->trigger = trigger_copy;
trigger_copy = NULL;
- query->action_index = action_index;
+ goto end;
+
error:
lttng_trigger_put(trigger_copy);
+ lttng_error_query_destroy(query ? &query->parent : NULL);
end:
return query ? &query->parent : NULL;
}
return ret;
}
+static
+int lttng_error_query_condition_serialize(const struct lttng_error_query *query,
+ struct lttng_payload *payload)
+{
+ int ret;
+ const struct lttng_error_query_condition *query_trigger =
+ container_of(query, typeof(*query_trigger), parent);
+
+ if (!lttng_trigger_validate(query_trigger->trigger)) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = lttng_trigger_serialize(query_trigger->trigger, payload);
+ if (ret) {
+ goto end;
+ }
+
+end:
+ return ret;
+}
+
static
int lttng_error_query_action_serialize(const struct lttng_error_query *query,
struct lttng_payload *payload)
int ret;
const struct lttng_error_query_action *query_action =
container_of(query, typeof(*query_action), parent);
- struct lttng_error_query_action_comm header = {
- .action_index.is_set = query_action->action_index.is_set,
- .action_index.value = query_action->action_index.value,
- };
if (!lttng_trigger_validate(query_action->trigger)) {
ret = -1;
goto end;
}
- ret = lttng_dynamic_buffer_append(
- &payload->buffer, &header, sizeof(header));
+ ret = lttng_trigger_serialize(query_action->trigger, payload);
if (ret) {
goto end;
}
- ret = lttng_trigger_serialize(query_action->trigger, payload);
+ ret = lttng_action_path_serialize(&query_action->action_path, payload);
if (ret) {
goto end;
}
+
end:
return ret;
}
return query_trigger->trigger;
}
+LTTNG_HIDDEN
+const struct lttng_trigger *lttng_error_query_condition_borrow_target(
+ const struct lttng_error_query *query)
+{
+ const struct lttng_error_query_condition *query_trigger =
+ container_of(query, typeof(*query_trigger), parent);
+
+ return query_trigger->trigger;
+}
+
LTTNG_HIDDEN
const struct lttng_trigger *lttng_error_query_action_borrow_trigger_target(
const struct lttng_error_query *query)
const struct lttng_error_query *query,
struct lttng_trigger *trigger)
{
- struct lttng_action *target_action = NULL;
const struct lttng_error_query_action *query_action =
container_of(query, typeof(*query_action), parent);
- struct lttng_action *trigger_action =
- lttng_trigger_get_action(trigger);
-
- if (!query_action->action_index.is_set) {
- target_action = trigger_action;
- } else {
- if (lttng_action_get_type(trigger_action) !=
- LTTNG_ACTION_TYPE_GROUP) {
- ERR("Invalid action error query target index: trigger action is not a group");
- goto end;
- }
- target_action = lttng_action_group_borrow_mutable_at_index(
- trigger_action,
- LTTNG_OPTIONAL_GET(query_action->action_index));
- }
-
-end:
- return target_action;
+ return get_trigger_action_from_path(
+ trigger, &query_action->action_path);
}
LTTNG_HIDDEN
struct lttng_payload *payload)
{
int ret;
- struct lttng_error_query_comm header = {
+ const struct lttng_error_query_comm header = {
.target_type = (typeof(header.target_type)) query->target_type,
};
goto end;
}
+ break;
+ case LTTNG_ERROR_QUERY_TARGET_TYPE_CONDITION:
+ ret = lttng_error_query_condition_serialize(query, payload);
+ if (ret) {
+ goto end;
+ }
+
break;
case LTTNG_ERROR_QUERY_TARGET_TYPE_ACTION:
ret = lttng_error_query_action_serialize(query, payload);
break;
}
- case LTTNG_ERROR_QUERY_TARGET_TYPE_ACTION:
+ case LTTNG_ERROR_QUERY_TARGET_TYPE_CONDITION:
{
- const struct lttng_action *target_action;
ssize_t trigger_used_size;
- struct lttng_error_query_action_comm *action_header;
+ struct lttng_payload_view trigger_view =
+ lttng_payload_view_from_view(
+ view, used_size, -1);
- {
- struct lttng_payload_view action_header_view =
- lttng_payload_view_from_view(view,
- used_size,
- sizeof(*action_header));
+ if (!lttng_payload_view_is_valid(&trigger_view)) {
+ used_size = -1;
+ goto end;
+ }
- if (!lttng_payload_view_is_valid(&action_header_view)) {
- used_size = -1;
- goto end;
- }
+ trigger_used_size = lttng_trigger_create_from_payload(
+ &trigger_view, &trigger);
+ if (trigger_used_size < 0) {
+ used_size = -1;
+ goto end;
+ }
- action_header = (typeof(action_header)) action_header_view.buffer.data;
- used_size += sizeof(*action_header);
+ used_size += trigger_used_size;
+
+ *query = lttng_error_query_condition_create(trigger);
+ if (!*query) {
+ used_size = -1;
+ goto end;
}
+ break;
+ }
+ case LTTNG_ERROR_QUERY_TARGET_TYPE_ACTION:
+ {
+ struct lttng_action_path *action_path = NULL;
+
{
+ ssize_t trigger_used_size;
struct lttng_payload_view trigger_view =
lttng_payload_view_from_view(
view, used_size, -1);
used_size += trigger_used_size;
}
- if (!action_header->action_index.is_set) {
- target_action = trigger->action;
- } else {
- if (lttng_action_get_type(trigger->action) !=
- LTTNG_ACTION_TYPE_GROUP) {
+ {
+ ssize_t action_path_used_size;
+ struct lttng_payload_view action_path_view =
+ lttng_payload_view_from_view(
+ view, used_size, -1);
+
+ if (!lttng_payload_view_is_valid(&action_path_view)) {
+ used_size = -1;
+ goto end;
+ }
+
+ action_path_used_size = lttng_action_path_create_from_payload(
+ &action_path_view, &action_path);
+ if (action_path_used_size < 0) {
used_size = -1;
goto end;
}
- target_action = lttng_action_group_get_at_index(
- trigger->action,
- action_header->action_index.value);
+ used_size += action_path_used_size;
}
*query = lttng_error_query_action_create(
- trigger, target_action);
+ trigger, action_path);
+ lttng_action_path_destroy(action_path);
if (!*query) {
used_size = -1;
goto end;
end:
return status;
}
+
+static
+enum lttng_error_code lttng_error_query_result_counter_mi_serialize(
+ const struct lttng_error_query_result *result,
+ struct mi_writer *writer)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ enum lttng_error_query_result_status status;
+ uint64_t value;
+
+ assert(result);
+ assert(writer);
+
+ status = lttng_error_query_result_counter_get_value(result, &value);
+ assert(status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK);
+
+ /* Open error query result counter element. */
+ ret = mi_lttng_writer_open_element(
+ writer, mi_lttng_element_error_query_result_counter);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Value. */
+ ret = mi_lttng_writer_write_element_unsigned_int(writer,
+ mi_lttng_element_error_query_result_counter_value,
+ value);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Close error query result counter element. */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto mi_error;
+ }
+
+ ret_code = LTTNG_OK;
+ goto end;
+
+mi_error:
+ ret_code = LTTNG_ERR_MI_IO_FAIL;
+end:
+ return ret_code;
+}
+
+static
+enum lttng_error_code lttng_error_query_result_mi_serialize(
+ const struct lttng_error_query_result *result,
+ struct mi_writer *writer)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ enum lttng_error_query_result_status result_status;
+ enum lttng_error_query_result_type type;
+ const char *name = NULL;
+ const char *description = NULL;
+
+ assert(result);
+ assert(writer);
+
+ type = lttng_error_query_result_get_type(result);
+
+ result_status = lttng_error_query_result_get_name(result, &name);
+ assert(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK);
+
+ result_status = lttng_error_query_result_get_description(
+ result, &description);
+ assert(result_status == LTTNG_ERROR_QUERY_RESULT_STATUS_OK);
+
+ /* Open error query result element. */
+ ret = mi_lttng_writer_open_element(
+ writer, mi_lttng_element_error_query_result);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Name. */
+ ret = mi_lttng_writer_write_element_string(
+ writer, mi_lttng_element_error_query_result_name, name);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Description. */
+ ret = mi_lttng_writer_write_element_string(writer,
+ mi_lttng_element_error_query_result_description,
+ description);
+ if (ret) {
+ goto mi_error;
+ }
+
+ /* Serialize the result according to its sub type. */
+ switch (type) {
+ case LTTNG_ERROR_QUERY_RESULT_TYPE_COUNTER:
+ ret_code = lttng_error_query_result_counter_mi_serialize(
+ result, writer);
+ break;
+ default:
+ abort();
+ }
+
+ if (ret_code != LTTNG_OK) {
+ goto end;
+ }
+
+ /* Close error query result element. */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto mi_error;
+ }
+
+ ret_code = LTTNG_OK;
+ goto end;
+
+mi_error:
+ ret_code = LTTNG_ERR_MI_IO_FAIL;
+end:
+ return ret_code;
+}
+
+LTTNG_HIDDEN
+enum lttng_error_code lttng_error_query_results_mi_serialize(
+ const struct lttng_error_query_results *results,
+ struct mi_writer *writer)
+{
+ int ret;
+ enum lttng_error_code ret_code;
+ unsigned int i, count;
+ enum lttng_error_query_results_status results_status;
+
+ assert(results);
+ assert(writer);
+
+ /* Open error query results element. */
+ ret = mi_lttng_writer_open_element(
+ writer, mi_lttng_element_error_query_results);
+ if (ret) {
+ goto mi_error;
+ }
+
+ results_status = lttng_error_query_results_get_count(results, &count);
+ assert(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK);
+
+ for (i = 0; i < count; i++) {
+ const struct lttng_error_query_result *result;
+
+ results_status = lttng_error_query_results_get_result(
+ results, &result, i);
+ assert(results_status == LTTNG_ERROR_QUERY_RESULTS_STATUS_OK);
+
+ /* A single error query result. */
+ ret_code = lttng_error_query_result_mi_serialize(result, writer);
+ if (ret_code != LTTNG_OK) {
+ goto end;
+ }
+ }
+
+ /* Close error query results. */
+ ret = mi_lttng_writer_close_element(writer);
+ if (ret) {
+ goto mi_error;
+ }
+
+ ret_code = LTTNG_OK;
+ goto end;
+
+mi_error:
+ ret_code = LTTNG_ERR_MI_IO_FAIL;
+end:
+ return ret_code;
+}
projects / lttng-tools.git / blobdiff