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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 | 5 |
6 #ifndef BASE_DEBUG_TRACE_EVENT_IMPL_H_ | 6 #ifndef BASE_DEBUG_TRACE_EVENT_IMPL_H_ |
7 #define BASE_DEBUG_TRACE_EVENT_IMPL_H_ | 7 #define BASE_DEBUG_TRACE_EVENT_IMPL_H_ |
8 | 8 |
9 #include <stack> | 9 #include <stack> |
10 #include <string> | 10 #include <string> |
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402 enable_systrace(false) {} | 402 enable_systrace(false) {} |
403 | 403 |
404 // |options_string| is a comma-delimited list of trace options. | 404 // |options_string| is a comma-delimited list of trace options. |
405 // Possible options are: "record-until-full", "record-continuously", | 405 // Possible options are: "record-until-full", "record-continuously", |
406 // "trace-to-console", "enable-sampling" and "enable-systrace". | 406 // "trace-to-console", "enable-sampling" and "enable-systrace". |
407 // The first 3 options are trace recoding modes and hence | 407 // The first 3 options are trace recoding modes and hence |
408 // mutually exclusive. If more than one trace recording modes appear in the | 408 // mutually exclusive. If more than one trace recording modes appear in the |
409 // options_string, the last one takes precedence. If none of the trace | 409 // options_string, the last one takes precedence. If none of the trace |
410 // recording mode is specified, recording mode is RECORD_UNTIL_FULL. | 410 // recording mode is specified, recording mode is RECORD_UNTIL_FULL. |
411 // | 411 // |
412 // Example: TraceOptions("record-until-full") | 412 // The trace option will first be reset to the default option |
413 // Example: TraceOptions("record-continuously, enable-sampling") | 413 // (record_mode set to RECORD_UNTIL_FULL, enable_sampling and enable_systrace |
414 // Example: TraceOptions("record-until-full, trace-to-console") would have | 414 // set to false) before options parsed from |options_string| are applied on |
415 // ECHO_TO_CONSOLE as the recording mode. | 415 // it. |
416 explicit TraceOptions(const std::string& options_string); | 416 // If |options_string| is invalid, the final state of trace_options is |
| 417 // undefined. |
| 418 // |
| 419 // Example: trace_options.SetFromString("record-until-full") |
| 420 // Example: trace_options.SetFromString( |
| 421 // "record-continuously, enable-sampling") |
| 422 // Example: trace_options.SetFromString("record-until-full, trace-to-console") |
| 423 // will set ECHO_TO_CONSOLE as the recording mode. |
| 424 // |
| 425 // Returns true on success. |
| 426 bool SetFromString(const std::string& options_string); |
417 | 427 |
418 std::string ToString() const; | 428 std::string ToString() const; |
419 | 429 |
420 TraceRecordMode record_mode; | 430 TraceRecordMode record_mode; |
421 bool enable_sampling; | 431 bool enable_sampling; |
422 bool enable_systrace; | 432 bool enable_systrace; |
423 }; | 433 }; |
424 | 434 |
425 class BASE_EXPORT TraceLog { | 435 class BASE_EXPORT TraceLog { |
426 public: | 436 public: |
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801 scoped_refptr<MessageLoopProxy> flush_message_loop_proxy_; | 811 scoped_refptr<MessageLoopProxy> flush_message_loop_proxy_; |
802 subtle::AtomicWord generation_; | 812 subtle::AtomicWord generation_; |
803 | 813 |
804 DISALLOW_COPY_AND_ASSIGN(TraceLog); | 814 DISALLOW_COPY_AND_ASSIGN(TraceLog); |
805 }; | 815 }; |
806 | 816 |
807 } // namespace debug | 817 } // namespace debug |
808 } // namespace base | 818 } // namespace base |
809 | 819 |
810 #endif // BASE_DEBUG_TRACE_EVENT_IMPL_H_ | 820 #endif // BASE_DEBUG_TRACE_EVENT_IMPL_H_ |
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