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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 SERVICES_SERVICE_MANAGER_STANDALONE_TRACER_H_ | 5 #ifndef SERVICES_SERVICE_MANAGER_STANDALONE_TRACER_H_ |
| 6 #define SERVICES_SERVICE_MANAGER_STANDALONE_TRACER_H_ | 6 #define SERVICES_SERVICE_MANAGER_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 <memory> | 11 #include <memory> |
| 12 #include <string> | 12 #include <string> |
| 13 | 13 |
| 14 #include "base/callback.h" | 14 #include "base/callback.h" |
| 15 #include "base/macros.h" | 15 #include "base/macros.h" |
| 16 #include "base/memory/ref_counted_memory.h" | 16 #include "base/memory/ref_counted_memory.h" |
| 17 #include "mojo/common/data_pipe_drainer.h" | 17 #include "mojo/common/data_pipe_drainer.h" |
| 18 #include "services/tracing/public/cpp/provider.h" | 18 #include "services/tracing/public/cpp/provider.h" |
| 19 #include "services/tracing/public/interfaces/tracing.mojom.h" | 19 #include "services/tracing/public/interfaces/tracing.mojom.h" |
| 20 | 20 |
| 21 namespace shell { | 21 namespace service_manager { |
| 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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| 88 bool first_chunk_written_; | 88 bool first_chunk_written_; |
| 89 std::string trace_service_data_; | 89 std::string trace_service_data_; |
| 90 | 90 |
| 91 // Trace file, if open. | 91 // Trace file, if open. |
| 92 FILE* trace_file_; | 92 FILE* trace_file_; |
| 93 std::string trace_filename_; | 93 std::string trace_filename_; |
| 94 | 94 |
| 95 DISALLOW_COPY_AND_ASSIGN(Tracer); | 95 DISALLOW_COPY_AND_ASSIGN(Tracer); |
| 96 }; | 96 }; |
| 97 | 97 |
| 98 } // namespace shell | 98 } // namespace service_manager |
| 99 | 99 |
| 100 #endif // SERVICES_SERVICE_MANAGER_STANDALONE_TRACER_H_ | 100 #endif // SERVICES_SERVICE_MANAGER_STANDALONE_TRACER_H_ |
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