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| 1 // Copyright (c) 2006-2008 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_COMMON_IPC_LOGGING_H_ | |
| 6 #define CHROME_COMMON_IPC_LOGGING_H_ | |
| 7 | |
| 8 #include "chrome/common/ipc_message.h" // For IPC_MESSAGE_LOG_ENABLED. | |
| 9 | |
| 10 #ifdef IPC_MESSAGE_LOG_ENABLED | |
| 11 | |
| 12 #include <vector> | |
| 13 | |
| 14 #include "base/message_loop.h" | |
| 15 #include "base/scoped_ptr.h" | |
| 16 #include "base/singleton.h" | |
| 17 #include "base/waitable_event_watcher.h" | |
| 18 | |
| 19 namespace IPC { | |
| 20 | |
| 21 class Message; | |
| 22 | |
| 23 // One instance per process. Needs to be created on the main thread (the UI | |
| 24 // thread in the browser) but OnPreDispatchMessage/OnPostDispatchMessage | |
| 25 // can be called on other threads. | |
| 26 class Logging : public base::WaitableEventWatcher::Delegate, | |
| 27 public MessageLoop::DestructionObserver { | |
| 28 public: | |
| 29 // Implemented by consumers of log messages. | |
| 30 class Consumer { | |
| 31 public: | |
| 32 virtual void Log(const LogData& data) = 0; | |
| 33 }; | |
| 34 | |
| 35 void SetConsumer(Consumer* consumer); | |
| 36 | |
| 37 ~Logging(); | |
| 38 static Logging* current(); | |
| 39 | |
| 40 void Enable(); | |
| 41 void Disable(); | |
| 42 bool Enabled() const { return enabled_; } | |
| 43 | |
| 44 // Called by child processes to give the logger object the channel to send | |
| 45 // logging data to the browser process. | |
| 46 void SetIPCSender(Message::Sender* sender); | |
| 47 | |
| 48 // Called in the browser process when logging data from a child process is | |
| 49 // received. | |
| 50 void OnReceivedLoggingMessage(const Message& message); | |
| 51 | |
| 52 void OnSendMessage(Message* message, const std::string& channel_id); | |
| 53 void OnPreDispatchMessage(const Message& message); | |
| 54 void OnPostDispatchMessage(const Message& message, | |
| 55 const std::string& channel_id); | |
| 56 | |
| 57 // Returns the name of the logging enabled/disabled events so that the | |
| 58 // sandbox can add them to to the policy. If true, gets the name of the | |
| 59 // enabled event, if false, gets the name of the disabled event. | |
| 60 static std::wstring GetEventName(bool enabled); | |
| 61 | |
| 62 // Like the *MsgLog functions declared for each message class, except this | |
| 63 // calls the correct one based on the message type automatically. Defined in | |
| 64 // ipc_logging.cc. | |
| 65 static void GetMessageText(uint16 type, std::wstring* name, | |
| 66 const Message* message, std::wstring* params); | |
| 67 | |
| 68 // WaitableEventWatcher::Delegate implementation | |
| 69 void OnWaitableEventSignaled(base::WaitableEvent* event); | |
| 70 | |
| 71 // MessageLoop::DestructionObserver implementation | |
| 72 void WillDestroyCurrentMessageLoop(); | |
| 73 | |
| 74 typedef void (*LogFunction)(uint16 type, | |
| 75 std::wstring* name, | |
| 76 const Message* msg, | |
| 77 std::wstring* params); | |
| 78 | |
| 79 static void SetLoggerFunctions(LogFunction *functions); | |
| 80 | |
| 81 private: | |
| 82 friend struct DefaultSingletonTraits<Logging>; | |
| 83 Logging(); | |
| 84 | |
| 85 std::wstring GetEventName(int browser_pid, bool enabled); | |
| 86 void OnSendLogs(); | |
| 87 void Log(const LogData& data); | |
| 88 | |
| 89 void RegisterWaitForEvent(bool enabled); | |
| 90 | |
| 91 base::WaitableEventWatcher watcher_; | |
| 92 | |
| 93 scoped_ptr<base::WaitableEvent> logging_event_on_; | |
| 94 scoped_ptr<base::WaitableEvent> logging_event_off_; | |
| 95 bool enabled_; | |
| 96 | |
| 97 std::vector<LogData> queued_logs_; | |
| 98 bool queue_invoke_later_pending_; | |
| 99 | |
| 100 Message::Sender* sender_; | |
| 101 MessageLoop* main_thread_; | |
| 102 | |
| 103 Consumer* consumer_; | |
| 104 | |
| 105 static LogFunction *log_function_mapping_; | |
| 106 }; | |
| 107 | |
| 108 } // namespace IPC | |
| 109 | |
| 110 #endif // IPC_MESSAGE_LOG_ENABLED | |
| 111 | |
| 112 #endif // CHROME_COMMON_IPC_LOGGING_H_ | |
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Chromium Code Reviews
Issue 155905:
Separates ipc code from common (http://crbug.com/16829) (Closed)
