+++ /dev/null
-/*
- * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#define BT_LOG_TAG "QUERY-EXECUTOR"
-#include <babeltrace2/lib-logging-internal.h>
-
-#include <babeltrace2/assert-internal.h>
-#include <babeltrace2/assert-pre-internal.h>
-#include <babeltrace2/graph/query-executor-const.h>
-#include <babeltrace2/graph/query-executor.h>
-#include <babeltrace2/graph/query-executor-internal.h>
-#include <babeltrace2/graph/component-class.h>
-#include <babeltrace2/graph/component-class-internal.h>
-#include <babeltrace2/value.h>
-#include <babeltrace2/value-const.h>
-#include <babeltrace2/object-internal.h>
-#include <babeltrace2/compiler-internal.h>
-
-static
-void bt_query_executor_destroy(struct bt_object *obj)
-{
- struct bt_query_executor *query_exec =
- container_of(obj, struct bt_query_executor, base);
-
- BT_LOGD("Destroying query executor: addr=%p", query_exec);
- g_free(query_exec);
-}
-
-struct bt_query_executor *bt_query_executor_create(void)
-{
- struct bt_query_executor *query_exec;
-
- BT_LOGD_STR("Creating query executor.");
- query_exec = g_new0(struct bt_query_executor, 1);
- if (!query_exec) {
- BT_LOGE_STR("Failed to allocate one query executor.");
- goto end;
- }
-
- bt_object_init_shared(&query_exec->base,
- bt_query_executor_destroy);
- BT_LOGD("Created query executor: addr=%p", query_exec);
-
-end:
- return (void *) query_exec;
-}
-
-enum bt_query_executor_status bt_query_executor_query(
- struct bt_query_executor *query_exec,
- const struct bt_component_class *comp_cls,
- const char *object, const struct bt_value *params,
- const struct bt_value **user_result)
-{
- typedef enum bt_query_status (*method_t)(void *, const void *,
- const void *, const void *, const void *);
-
- enum bt_query_status status;
- enum bt_query_executor_status exec_status;
- method_t method = NULL;
-
- BT_ASSERT_PRE_NON_NULL(query_exec, "Query executor");
- BT_ASSERT_PRE_NON_NULL(comp_cls, "Component class");
- BT_ASSERT_PRE_NON_NULL(object, "Object");
- BT_ASSERT_PRE_NON_NULL(user_result, "Result (output)");
- BT_ASSERT_PRE(!query_exec->canceled, "Query executor is canceled.");
-
- if (!params) {
- params = bt_value_null;
- }
-
- switch (comp_cls->type) {
- case BT_COMPONENT_CLASS_TYPE_SOURCE:
- {
- struct bt_component_class_source *src_cc = (void *) comp_cls;
-
- method = (method_t) src_cc->methods.query;
- break;
- }
- case BT_COMPONENT_CLASS_TYPE_FILTER:
- {
- struct bt_component_class_filter *flt_cc = (void *) comp_cls;
-
- method = (method_t) flt_cc->methods.query;
- break;
- }
- case BT_COMPONENT_CLASS_TYPE_SINK:
- {
- struct bt_component_class_sink *sink_cc = (void *) comp_cls;
-
- method = (method_t) sink_cc->methods.query;
- break;
- }
- default:
- abort();
- }
-
- if (!method) {
- /* Not an error: nothing to query */
- BT_LIB_LOGD("Component class has no registered query method: "
- "%!+C", comp_cls);
- exec_status = BT_QUERY_EXECUTOR_STATUS_UNSUPPORTED;
- goto end;
- }
-
- BT_LIB_LOGD("Calling user's query method: "
- "query-exec-addr=%p, %![cc-]+C, object=\"%s\", %![params-]+v",
- query_exec, comp_cls, object, params);
- *user_result = NULL;
- status = method((void *) comp_cls, query_exec, object, params,
- user_result);
- BT_LIB_LOGD("User method returned: status=%s, %![res-]+v",
- bt_query_status_string(status), *user_result);
- BT_ASSERT_PRE(status != BT_QUERY_STATUS_OK || *user_result,
- "User method returned `BT_QUERY_STATUS_OK` without a result.");
- exec_status = (int) status;
- if (query_exec->canceled) {
- BT_OBJECT_PUT_REF_AND_RESET(*user_result);
- exec_status = BT_QUERY_EXECUTOR_STATUS_CANCELED;
- goto end;
- }
-
-end:
- return exec_status;
-}
-
-enum bt_query_executor_status bt_query_executor_cancel(
- struct bt_query_executor *query_exec)
-{
- BT_ASSERT_PRE_NON_NULL(query_exec, "Query executor");
- query_exec->canceled = BT_TRUE;
- BT_LOGV("Canceled query executor: addr=%p", query_exec);
- return BT_QUERY_EXECUTOR_STATUS_OK;
-}
-
-bt_bool bt_query_executor_is_canceled(const struct bt_query_executor *query_exec)
-{
- BT_ASSERT_PRE_NON_NULL(query_exec, "Query executor");
- return query_exec->canceled;
-}
-
-void bt_query_executor_get_ref(const struct bt_query_executor *query_executor)
-{
- bt_object_get_ref(query_executor);
-}
-
-void bt_query_executor_put_ref(const struct bt_query_executor *query_executor)
-{
- bt_object_put_ref(query_executor);
-}
projects / babeltrace.git / blobdiff