91ea6343d7
Original review: http://codereview.chromium.org/8355024/ BUG=100291 TEST=base_unittests, content_unittests Review URL: http://codereview.chromium.org/8373018 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@106924 0039d316-1c4b-4281-b951-d872f2087c98
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef CONTENT_BROWSER_TRACE_SUBSCRIBER_STDIO_H_
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#define CONTENT_BROWSER_TRACE_SUBSCRIBER_STDIO_H_
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#pragma once
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#include <string>
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#include "base/file_util.h"
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#include "content/browser/trace_controller.h"
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#include "content/common/content_export.h"
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// Stdio implementation of TraceSubscriber. Use this to write traces to a file.
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class CONTENT_EXPORT TraceSubscriberStdio : public TraceSubscriber {
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public:
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TraceSubscriberStdio();
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// Creates or overwrites the specified file. Check IsValid() for success.
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explicit TraceSubscriberStdio(const FilePath& path);
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// Creates or overwrites the specified file. Returns true on success.
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bool OpenFile(const FilePath& path);
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// Finishes json output and closes file.
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void CloseFile();
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// Returns TRUE if we're currently writing data to a file.
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bool IsValid();
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// Implementation of TraceSubscriber
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virtual void OnEndTracingComplete();
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virtual void OnTraceDataCollected(const std::string& trace_fragment);
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virtual ~TraceSubscriberStdio();
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private:
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void Write(const std::string& output_str);
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FILE* file_;
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base::debug::TraceResultBuffer trace_buffer_;
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};
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#endif // CONTENT_BROWSER_TRACE_SUBSCRIBER_STDIO_H_
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