OLD | NEW |
1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_DEBUG_TASK_ANNOTATOR_H_ | 5 #ifndef BASE_DEBUG_TASK_ANNOTATOR_H_ |
6 #define BASE_DEBUG_TASK_ANNOTATOR_H_ | 6 #define BASE_DEBUG_TASK_ANNOTATOR_H_ |
7 | 7 |
| 8 #include <stdint.h> |
| 9 |
8 #include "base/base_export.h" | 10 #include "base/base_export.h" |
9 #include "base/basictypes.h" | 11 #include "base/macros.h" |
10 | 12 |
11 namespace base { | 13 namespace base { |
12 struct PendingTask; | 14 struct PendingTask; |
13 namespace debug { | 15 namespace debug { |
14 | 16 |
15 // Implements common debug annotations for posted tasks. This includes data | 17 // Implements common debug annotations for posted tasks. This includes data |
16 // such as task origins, queueing durations and memory usage. | 18 // such as task origins, queueing durations and memory usage. |
17 class BASE_EXPORT TaskAnnotator { | 19 class BASE_EXPORT TaskAnnotator { |
18 public: | 20 public: |
19 TaskAnnotator(); | 21 TaskAnnotator(); |
20 ~TaskAnnotator(); | 22 ~TaskAnnotator(); |
21 | 23 |
22 // Called to indicate that a task has been queued to run in the future. | 24 // Called to indicate that a task has been queued to run in the future. |
23 // |queue_function| is used as the trace flow event name. | 25 // |queue_function| is used as the trace flow event name. |
24 void DidQueueTask(const char* queue_function, | 26 void DidQueueTask(const char* queue_function, |
25 const PendingTask& pending_task); | 27 const PendingTask& pending_task); |
26 | 28 |
27 // Run a previously queued task. |queue_function| should match what was | 29 // Run a previously queued task. |queue_function| should match what was |
28 // passed into |DidQueueTask| for this task. | 30 // passed into |DidQueueTask| for this task. |
29 void RunTask(const char* queue_function, const PendingTask& pending_task); | 31 void RunTask(const char* queue_function, const PendingTask& pending_task); |
30 | 32 |
31 private: | 33 private: |
32 // Creates a process-wide unique ID to represent this task in trace events. | 34 // Creates a process-wide unique ID to represent this task in trace events. |
33 // This will be mangled with a Process ID hash to reduce the likelyhood of | 35 // This will be mangled with a Process ID hash to reduce the likelyhood of |
34 // colliding with TaskAnnotator pointers on other processes. | 36 // colliding with TaskAnnotator pointers on other processes. |
35 uint64 GetTaskTraceID(const PendingTask& task) const; | 37 uint64_t GetTaskTraceID(const PendingTask& task) const; |
36 | 38 |
37 DISALLOW_COPY_AND_ASSIGN(TaskAnnotator); | 39 DISALLOW_COPY_AND_ASSIGN(TaskAnnotator); |
38 }; | 40 }; |
39 | 41 |
40 #define TRACE_TASK_EXECUTION(run_function, task) \ | 42 #define TRACE_TASK_EXECUTION(run_function, task) \ |
41 TRACE_EVENT2("toplevel", (run_function), "src_file", \ | 43 TRACE_EVENT2("toplevel", (run_function), "src_file", \ |
42 (task).posted_from.file_name(), "src_func", \ | 44 (task).posted_from.file_name(), "src_func", \ |
43 (task).posted_from.function_name()); | 45 (task).posted_from.function_name()); |
44 | 46 |
45 } // namespace debug | 47 } // namespace debug |
46 } // namespace base | 48 } // namespace base |
47 | 49 |
48 #endif // BASE_DEBUG_TASK_ANNOTATOR_H_ | 50 #endif // BASE_DEBUG_TASK_ANNOTATOR_H_ |
OLD | NEW |