158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// found in the LICENSE file. 458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#ifndef CONTENT_BROWSER_BROWSER_SHUTDOWN_PROFILE_DUMPER_H_ 658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#define CONTENT_BROWSER_BROWSER_SHUTDOWN_PROFILE_DUMPER_H_ 758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include <string> 958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 1058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "base/basictypes.h" 1158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "base/memory/ref_counted.h" 1258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "base/memory/ref_counted_memory.h" 1358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "content/common/content_export.h" 1458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 1558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)namespace base { 1658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)class FilePath; 17d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)class WaitableEvent; 1858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)} 1958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 2058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)namespace content { 2158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 2258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// This class is intended to dump the tracing results of the shutdown process 2358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// to a file before the browser process exits. 2458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// It will save the file either into the command line passed 2558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// "--trace-shutdown-file=<name>" parameter - or - to "chrometrace.log" in the 2658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// current directory. 2758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// Use the class with a scoped_ptr to get files written in the destructor. 2858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// Note that we cannot use the asynchronous file writer since the 2958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)// |SequencedWorkerPool| will get killed in the shutdown process. 3058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)class BrowserShutdownProfileDumper { 3158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) public: 3258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) BrowserShutdownProfileDumper(); 3358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 3458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) ~BrowserShutdownProfileDumper(); 3558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 3658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) private: 3758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // Writes all traces which happened to disk. 3858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) void WriteTracesToDisc(const base::FilePath& file_name); 3958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 40d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) void EndTraceAndFlush(base::WaitableEvent* flush_complete_event); 41d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) 4258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // Returns the file name where we should save the trace dump to. 4358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) base::FilePath GetFileName(); 4458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 4558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // The callback for the |TraceLog::Flush| function. It saves all traces to 4658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // disc. 4758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) void WriteTraceDataCollected( 48d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles) base::WaitableEvent* flush_complete_event, 4958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) const scoped_refptr<base::RefCountedString>& events_str, 5058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) bool has_more_events); 5158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 5258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // Returns true if the dump file is valid. 5358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) bool IsFileValid(); 5458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 5558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // Writes a string to the dump file. 5658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) void WriteString(const std::string& string); 5758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 5858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // Write a buffer to the dump file. 5958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) void WriteChars(const char* chars, size_t size); 6058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 6158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // Closes the dump file. 6258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) void CloseFile(); 6358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 6458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // The number of blocks we have already written. 6558537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) int blocks_; 6658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // For dumping the content to disc. 6758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) FILE* dump_file_; 6858537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 6958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(BrowserShutdownProfileDumper); 7058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)}; 7158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 7258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)} // namespace content 7358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) 7458537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#endif // CONTENT_BROWSER_BROWSER_SHUTDOWN_PROFILE_DUMPER_H_ 75