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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 MOJO_RUNNER_TRACER_H_ | 5 #ifndef MOJO_SHELL_STANDALONE_TRACER_H_ |
| 6 #define MOJO_RUNNER_TRACER_H_ | 6 #define MOJO_SHELL_STANDALONE_TRACER_H_ |
| 7 | 7 |
| 8 #include <stddef.h> | 8 #include <stddef.h> |
| 9 #include <stdio.h> | 9 #include <stdio.h> |
| 10 | 10 |
| 11 #include <string> | 11 #include <string> |
| 12 | 12 |
| 13 #include "base/callback.h" | 13 #include "base/callback.h" |
| 14 #include "base/macros.h" | 14 #include "base/macros.h" |
| 15 #include "base/memory/ref_counted_memory.h" | 15 #include "base/memory/ref_counted_memory.h" |
| 16 #include "mojo/common/data_pipe_drainer.h" | 16 #include "mojo/common/data_pipe_drainer.h" |
| 17 #include "mojo/services/tracing/public/cpp/trace_provider_impl.h" | 17 #include "mojo/services/tracing/public/cpp/trace_provider_impl.h" |
| 18 #include "mojo/services/tracing/public/interfaces/tracing.mojom.h" | 18 #include "mojo/services/tracing/public/interfaces/tracing.mojom.h" |
| 19 | 19 |
| 20 namespace mojo { | 20 namespace mojo { |
| 21 namespace runner { | 21 namespace shell { |
| 22 | 22 |
| 23 // Tracer collects tracing data from base/trace_event and from externally | 23 // Tracer collects tracing data from base/trace_event and from externally |
| 24 // configured sources, aggregates it into a single stream, and writes it out to | 24 // configured sources, aggregates it into a single stream, and writes it out to |
| 25 // a file. It should be constructed very early in a process' lifetime before any | 25 // a file. It should be constructed very early in a process' lifetime before any |
| 26 // initialization that may be interesting to trace has occured and be shut down | 26 // initialization that may be interesting to trace has occured and be shut down |
| 27 // as late as possible to capture as much initialization/shutdown code as | 27 // as late as possible to capture as much initialization/shutdown code as |
| 28 // possible. | 28 // possible. |
| 29 class Tracer : public mojo::common::DataPipeDrainer::Client { | 29 class Tracer : public mojo::common::DataPipeDrainer::Client { |
| 30 public: | 30 public: |
| 31 Tracer(); | 31 Tracer(); |
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| 89 bool first_chunk_written_; | 89 bool first_chunk_written_; |
| 90 std::string trace_service_data_; | 90 std::string trace_service_data_; |
| 91 | 91 |
| 92 // Trace file, if open. | 92 // Trace file, if open. |
| 93 FILE* trace_file_; | 93 FILE* trace_file_; |
| 94 std::string trace_filename_; | 94 std::string trace_filename_; |
| 95 | 95 |
| 96 DISALLOW_COPY_AND_ASSIGN(Tracer); | 96 DISALLOW_COPY_AND_ASSIGN(Tracer); |
| 97 }; | 97 }; |
| 98 | 98 |
| 99 } // namespace runner | 99 } // namespace shell |
| 100 } // namespace mojo | 100 } // namespace mojo |
| 101 | 101 |
| 102 #endif // MOJO_RUNNER_TRACER_H_ | 102 #endif // MOJO_SHELL_STANDALONE_TRACER_H_ |
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