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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 #include "content/browser/tracing/trace_subscriber_stdio.h" | 5 #include "content/browser/tracing/trace_subscriber_stdio.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/debug/trace_event.h" | 8 #include "base/debug/trace_event.h" |
| 9 #include "base/file_util.h" | 9 #include "base/file_util.h" |
| 10 #include "base/logging.h" | 10 #include "base/logging.h" |
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| 30 wrote_system_trace_(false) {} | 30 wrote_system_trace_(false) {} |
| 31 | 31 |
| 32 void OnTraceStart() { | 32 void OnTraceStart() { |
| 33 DCHECK(!file_); | 33 DCHECK(!file_); |
| 34 file_ = file_util::OpenFile(path_, "w+"); | 34 file_ = file_util::OpenFile(path_, "w+"); |
| 35 if (!IsValid()) { | 35 if (!IsValid()) { |
| 36 LOG(ERROR) << "Failed to open performance trace file: " << path_.value(); | 36 LOG(ERROR) << "Failed to open performance trace file: " << path_.value(); |
| 37 return; | 37 return; |
| 38 } | 38 } |
| 39 | 39 |
| 40 LOG(INFO) << "Logging performance trace to file: " << path_.value(); | 40 VLOG(0) << "Logging performance trace to file: " << path_.value(); |
| 41 if (file_type_ == FILE_TYPE_PROPERTY_LIST) | 41 if (file_type_ == FILE_TYPE_PROPERTY_LIST) |
| 42 WriteString("{\"traceEvents\":"); | 42 WriteString("{\"traceEvents\":"); |
| 43 WriteString("["); | 43 WriteString("["); |
| 44 } | 44 } |
| 45 | 45 |
| 46 void OnTraceData(const scoped_refptr<base::RefCountedString>& data_ptr) { | 46 void OnTraceData(const scoped_refptr<base::RefCountedString>& data_ptr) { |
| 47 if (!IsValid()) | 47 if (!IsValid()) |
| 48 return; | 48 return; |
| 49 DCHECK(!data_ptr->data().empty()); | 49 DCHECK(!data_ptr->data().empty()); |
| 50 if (needs_comma_) | 50 if (needs_comma_) |
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| 192 void TraceSubscriberStdio::OnEndSystemTracing( | 192 void TraceSubscriberStdio::OnEndSystemTracing( |
| 193 const scoped_refptr<base::RefCountedString>& events_str_ptr) { | 193 const scoped_refptr<base::RefCountedString>& events_str_ptr) { |
| 194 BrowserThread::PostBlockingPoolSequencedTask( | 194 BrowserThread::PostBlockingPoolSequencedTask( |
| 195 __FILE__, FROM_HERE, | 195 __FILE__, FROM_HERE, |
| 196 base::Bind(&TraceSubscriberStdioWorker::OnSystemTraceData, | 196 base::Bind(&TraceSubscriberStdioWorker::OnSystemTraceData, |
| 197 worker_, | 197 worker_, |
| 198 events_str_ptr)); | 198 events_str_ptr)); |
| 199 } | 199 } |
| 200 | 200 |
| 201 } // namespace content | 201 } // namespace content |
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