#define MAX_QUERY_SIZE (256*1024)
#define URL_PARAM "url"
+#define INPUTS_PARAM "inputs"
#define SESS_NOT_FOUND_ACTION_PARAM "session-not-found-action"
#define SESS_NOT_FOUND_ACTION_CONTINUE_STR "continue"
#define SESS_NOT_FOUND_ACTION_FAIL_STR "fail"
BT_HIDDEN
bt_component_class_message_iterator_init_method_status lttng_live_msg_iter_init(
bt_self_message_iterator *self_msg_it,
+ bt_self_message_iterator_configuration *config,
bt_self_component_source *self_comp_src,
bt_self_component_port_output *self_port)
{
return status;
}
+static
+bt_component_class_query_method_status lttng_live_query_support_info(
+ const bt_value *params, const bt_value **result,
+ bt_logging_level log_level)
+{
+ bt_component_class_query_method_status status =
+ BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK;
+ const bt_value *input_type_value;
+ const bt_value *input_value;
+ double weight = 0;
+ struct bt_common_lttng_live_url_parts parts = { 0 };
+
+ /* Used by the logging macros */
+ __attribute__((unused)) bt_self_component *self_comp = NULL;
+
+ *result = NULL;
+ input_type_value = bt_value_map_borrow_entry_value_const(params,
+ "type");
+ if (!input_type_value) {
+ BT_COMP_LOGE("Missing expected `type` parameter.");
+ goto error;
+ }
+
+ if (!bt_value_is_string(input_type_value)) {
+ BT_COMP_LOGE("`type` parameter is not a string value.");
+ goto error;
+ }
+
+ if (strcmp(bt_value_string_get(input_type_value), "string") != 0) {
+ /* We don't handle file system paths */
+ goto create_result;
+ }
+
+ input_value = bt_value_map_borrow_entry_value_const(params, "input");
+ if (!input_value) {
+ BT_COMP_LOGE("Missing expected `input` parameter.");
+ goto error;
+ }
+
+ if (!bt_value_is_string(input_value)) {
+ BT_COMP_LOGE("`input` parameter is not a string value.");
+ goto error;
+ }
+
+ parts = bt_common_parse_lttng_live_url(bt_value_string_get(input_value),
+ NULL, 0);
+ if (parts.session_name) {
+ /*
+ * Looks pretty much like an LTTng live URL: we got the
+ * session name part, which forms a complete URL.
+ */
+ weight = .75;
+ }
+
+create_result:
+ *result = bt_value_real_create_init(weight);
+ if (!*result) {
+ status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR;
+ goto error;
+ }
+
+ goto end;
+
+error:
+ if (status >= 0) {
+ status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR;
+ }
+
+ BT_ASSERT(!*result);
+
+end:
+ bt_common_destroy_lttng_live_url_parts(&parts);
+ return status;
+}
+
BT_HIDDEN
bt_component_class_query_method_status lttng_live_query(
bt_self_component_class_source *comp_class,
if (strcmp(object, "sessions") == 0) {
status = lttng_live_query_list_sessions(params, result,
log_level);
+ } else if (strcmp(object, "babeltrace.support-info") == 0) {
+ status = lttng_live_query_support_info(params, result,
+ log_level);
} else {
BT_COMP_LOGI("Unknown query object `%s`", object);
status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_UNKNOWN_OBJECT;
bt_logging_level log_level, bt_self_component *self_comp)
{
struct lttng_live_component *lttng_live;
- const bt_value *value = NULL;
+ const bt_value *inputs_value;
+ const bt_value *url_value;
+ const bt_value *value;
const char *url;
lttng_live = g_new0(struct lttng_live_component, 1);
lttng_live->max_query_size = MAX_QUERY_SIZE;
lttng_live->has_msg_iter = false;
- value = bt_value_map_borrow_entry_value_const(params, URL_PARAM);
- if (!value || !bt_value_is_string(value)) {
- BT_COMP_LOGW("Mandatory `%s` parameter missing or not a string",
- URL_PARAM);
+ inputs_value = bt_value_map_borrow_entry_value_const(params,
+ INPUTS_PARAM);
+ if (!inputs_value) {
+ BT_COMP_LOGE("Mandatory `%s` parameter missing", INPUTS_PARAM);
+ goto error;
+ }
+
+ if (!bt_value_is_array(inputs_value)) {
+ BT_COMP_LOGE("`%s` parameter is required to be an array value",
+ INPUTS_PARAM);
+ goto error;
+ }
+
+ if (bt_value_array_get_length(inputs_value) != 1) {
+ BT_COMP_LOGE("`%s` parameter's length is required to be 1",
+ INPUTS_PARAM);
+ goto error;
+ }
+
+ url_value = bt_value_array_borrow_element_by_index_const(inputs_value,
+ 0);
+ BT_ASSERT(url_value);
+
+ if (!bt_value_is_string(url_value)) {
+ BT_COMP_LOGE("First element of `%s` parameter is required to be a string value (URL)",
+ INPUTS_PARAM);
goto error;
}
- url = bt_value_string_get(value);
+
+ url = bt_value_string_get(url_value);
lttng_live->params.url = g_string_new(url);
if (!lttng_live->params.url) {
goto error;
value = bt_value_map_borrow_entry_value_const(params,
SESS_NOT_FOUND_ACTION_PARAM);
+ if (value) {
+ if (!bt_value_is_string(value)) {
+ BT_COMP_LOGE("`%s` parameter is required to be a string value",
+ SESS_NOT_FOUND_ACTION_PARAM);
+ goto error;
+ }
- if (value && bt_value_is_string(value)) {
lttng_live->params.sess_not_found_act =
parse_session_not_found_action_param(value);
if (lttng_live->params.sess_not_found_act == SESSION_NOT_FOUND_ACTION_UNKNOWN) {
goto error;
}
} else {
- BT_COMP_LOGW("Optional `%s` parameter is missing or "
- "not a string value. Defaulting to %s=\"%s\".",
- SESS_NOT_FOUND_ACTION_PARAM,
+ BT_COMP_LOGI("Optional `%s` parameter is missing: "
+ "defaulting to `%s`.",
SESS_NOT_FOUND_ACTION_PARAM,
SESS_NOT_FOUND_ACTION_CONTINUE_STR);
lttng_live->params.sess_not_found_act =
BT_HIDDEN
bt_component_class_init_method_status lttng_live_component_init(
bt_self_component_source *self_comp_src,
- const bt_value *params, __attribute__((unused)) void *init_method_data)
+ bt_self_component_source_configuration *config,
+ const bt_value *params,
+ __attribute__((unused)) void *init_method_data)
{
struct lttng_live_component *lttng_live;
bt_component_class_init_method_status ret =
projects / babeltrace.git / blobdiff