| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef APACHE_HTRACE_SCOPE_H |
| #define APACHE_HTRACE_SCOPE_H |
| |
| /** |
| * @file scope.h |
| * |
| * Functions related to trace scopes. |
| * |
| * This is an internal header, not intended for external use. |
| */ |
| |
| struct htrace_span_id; |
| |
| #include <stdint.h> |
| |
| /** |
| * A trace scope. |
| * |
| * Currently, trace scopes contain span data (there is no separate object for |
| * the span data.) |
| */ |
| struct htrace_scope { |
| /** |
| * The HTracer object associated with this scope. Cannot be NULL. |
| * This memory is managed externally from the htrace_scope object. |
| */ |
| struct htracer *tracer; |
| |
| /** |
| * The parent scope, or NULL if this is a top-level scope. |
| */ |
| struct htrace_scope *parent; |
| |
| /** |
| * The span object associated with this scope, or NULL if there is none. |
| */ |
| struct htrace_span *span; |
| }; |
| |
| /** |
| * Get the span id of an HTrace scope. |
| * |
| * @param scope The trace scope, or NULL. |
| * @param id (out param) The htrace span ID object to modify. |
| * It will be set to the invalid span ID if the scope |
| * is null or has no span. |
| */ |
| void htrace_scope_get_span_id(const struct htrace_scope *scope, |
| struct htrace_span_id *id); |
| |
| #endif |
| |
| // vim: ts=4:sw=4:et |