1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_NET_NET_LOG_LOGGER_H_ 6 #define CHROME_BROWSER_NET_NET_LOG_LOGGER_H_ 7 #pragma once 8 9 #include "base/memory/scoped_handle.h" 10 #include "chrome/browser/net/chrome_net_log.h" 11 12 class FilePath; 13 14 // NetLogLogger watches the NetLog event stream, and sends all entries to 15 // VLOG(1) or a path specified on creation. This is to debug errors that 16 // prevent getting to the about:net-internals page. 17 // 18 // Relies on ChromeNetLog only calling an Observer once at a time for 19 // thread-safety. 20 class NetLogLogger : public ChromeNetLog::ThreadSafeObserver { 21 public: 22 // If |log_path| is empty or file creation fails, writes to VLOG(1). 23 // Otherwise, writes to |log_path|. Uses one line per entry, for 24 // easy parsing. 25 explicit NetLogLogger(const FilePath &log_path); 26 ~NetLogLogger(); 27 28 // ThreadSafeObserver implementation: 29 virtual void OnAddEntry(net::NetLog::EventType type, 30 const base::TimeTicks& time, 31 const net::NetLog::Source& source, 32 net::NetLog::EventPhase phase, 33 net::NetLog::EventParameters* params); 34 35 private: 36 ScopedStdioHandle file_; 37 38 DISALLOW_COPY_AND_ASSIGN(NetLogLogger); 39 }; 40 41 #endif // CHROME_BROWSER_NET_NET_LOG_LOGGER_H_ 42 43