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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 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 | 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 #ifndef CHROME_COMMON_IPC_LOGGING_H_ | 5 #ifndef CHROME_COMMON_IPC_LOGGING_H_ |
6 #define CHROME_COMMON_IPC_LOGGING_H_ | 6 #define CHROME_COMMON_IPC_LOGGING_H_ |
7 | 7 |
8 #include "chrome/common/ipc_message.h" // For IPC_MESSAGE_LOG_ENABLED. | 8 #include "chrome/common/ipc_message.h" // For IPC_MESSAGE_LOG_ENABLED. |
9 | 9 |
10 #ifdef IPC_MESSAGE_LOG_ENABLED | 10 #ifdef IPC_MESSAGE_LOG_ENABLED |
11 | 11 |
12 #include "base/lock.h" | 12 #include "base/lock.h" |
13 #include "base/object_watcher.h" | |
14 #include "base/singleton.h" | 13 #include "base/singleton.h" |
| 14 #include "base/waitable_event_watcher.h" |
15 #include "chrome/common/ipc_message_utils.h" | 15 #include "chrome/common/ipc_message_utils.h" |
16 | 16 |
17 class MessageLoop; | 17 class MessageLoop; |
18 | 18 |
19 namespace IPC { | 19 namespace IPC { |
20 | 20 |
21 class Message; | 21 class Message; |
22 | 22 |
23 // One instance per process. Needs to be created on the main thread (the UI | 23 // One instance per process. Needs to be created on the main thread (the UI |
24 // thread in the browser) but OnPreDispatchMessage/OnPostDispatchMessage | 24 // thread in the browser) but OnPreDispatchMessage/OnPostDispatchMessage |
25 // can be called on other threads. | 25 // can be called on other threads. |
26 class Logging : public base::ObjectWatcher::Delegate { | 26 class Logging : public base::WaitableEventWatcher::Delegate { |
27 public: | 27 public: |
28 // Implemented by consumers of log messages. | 28 // Implemented by consumers of log messages. |
29 class Consumer { | 29 class Consumer { |
30 public: | 30 public: |
31 virtual void Log(const LogData& data) = 0; | 31 virtual void Log(const LogData& data) = 0; |
32 }; | 32 }; |
33 | 33 |
34 void SetConsumer(Consumer* consumer); | 34 void SetConsumer(Consumer* consumer); |
35 | 35 |
36 ~Logging(); | 36 ~Logging(); |
37 static Logging* current(); | 37 static Logging* current(); |
38 | 38 |
39 void Enable(); | 39 void Enable(); |
40 void Disable(); | 40 void Disable(); |
41 bool inline Enabled() const; | 41 bool Enabled() const { return enabled_; } |
42 | 42 |
43 // Called by child processes to give the logger object the channel to send | 43 // Called by child processes to give the logger object the channel to send |
44 // logging data to the browser process. | 44 // logging data to the browser process. |
45 void SetIPCSender(Message::Sender* sender); | 45 void SetIPCSender(Message::Sender* sender); |
46 | 46 |
47 // Called in the browser process when logging data from a child process is | 47 // Called in the browser process when logging data from a child process is |
48 // received. | 48 // received. |
49 void OnReceivedLoggingMessage(const Message& message); | 49 void OnReceivedLoggingMessage(const Message& message); |
50 | 50 |
51 void OnSendMessage(Message* message, const std::wstring& channel_id); | 51 void OnSendMessage(Message* message, const std::wstring& channel_id); |
52 void OnPreDispatchMessage(const Message& message); | 52 void OnPreDispatchMessage(const Message& message); |
53 void OnPostDispatchMessage(const Message& message, | 53 void OnPostDispatchMessage(const Message& message, |
54 const std::wstring& channel_id); | 54 const std::wstring& channel_id); |
55 | 55 |
56 // Returns the name of the logging enabled/disabled events so that the | 56 // Returns the name of the logging enabled/disabled events so that the |
57 // sandbox can add them to to the policy. If true, gets the name of the | 57 // sandbox can add them to to the policy. If true, gets the name of the |
58 // enabled event, if false, gets the name of the disabled event. | 58 // enabled event, if false, gets the name of the disabled event. |
59 static std::wstring GetEventName(bool enabled); | 59 static std::wstring GetEventName(bool enabled); |
60 | 60 |
61 // Like the *MsgLog functions declared for each message class, except this | 61 // Like the *MsgLog functions declared for each message class, except this |
62 // calls the correct one based on the message type automatically. Defined in | 62 // calls the correct one based on the message type automatically. Defined in |
63 // ipc_logging.cc. | 63 // ipc_logging.cc. |
64 static void GetMessageText(uint16 type, std::wstring* name, | 64 static void GetMessageText(uint16 type, std::wstring* name, |
65 const Message* message, std::wstring* params); | 65 const Message* message, std::wstring* params); |
66 | 66 |
67 // ObjectWatcher::Delegate implementation | 67 // WaitableEventWatcher::Delegate implementation |
68 void OnObjectSignaled(HANDLE object); | 68 void OnWaitableEventSignaled(base::WaitableEvent* event); |
69 | 69 |
70 typedef void (*LogFunction)(uint16 type, | 70 typedef void (*LogFunction)(uint16 type, |
71 std::wstring* name, | 71 std::wstring* name, |
72 const Message* msg, | 72 const Message* msg, |
73 std::wstring* params); | 73 std::wstring* params); |
74 | 74 |
75 static void SetLoggerFunctions(LogFunction *functions); | 75 static void SetLoggerFunctions(LogFunction *functions); |
76 | 76 |
77 private: | 77 private: |
78 friend struct DefaultSingletonTraits<Logging>; | 78 friend struct DefaultSingletonTraits<Logging>; |
79 Logging(); | 79 Logging(); |
80 | 80 |
81 std::wstring GetEventName(int browser_pid, bool enabled); | 81 std::wstring GetEventName(int browser_pid, bool enabled); |
82 void OnSendLogs(); | 82 void OnSendLogs(); |
83 void Log(const LogData& data); | 83 void Log(const LogData& data); |
84 | 84 |
85 void RegisterWaitForEvent(bool enabled); | 85 void RegisterWaitForEvent(bool enabled); |
86 | 86 |
87 base::ObjectWatcher watcher_; | 87 base::WaitableEventWatcher watcher_; |
88 | 88 |
89 HANDLE logging_event_on_; | 89 scoped_ptr<base::WaitableEvent> logging_event_on_; |
90 HANDLE logging_event_off_; | 90 scoped_ptr<base::WaitableEvent> logging_event_off_; |
91 bool enabled_; | 91 bool enabled_; |
92 | 92 |
93 std::vector<LogData> queued_logs_; | 93 std::vector<LogData> queued_logs_; |
94 bool queue_invoke_later_pending_; | 94 bool queue_invoke_later_pending_; |
95 | 95 |
96 Message::Sender* sender_; | 96 Message::Sender* sender_; |
97 MessageLoop* main_thread_; | 97 MessageLoop* main_thread_; |
98 | 98 |
99 Consumer* consumer_; | 99 Consumer* consumer_; |
100 | 100 |
101 static LogFunction *log_function_mapping_; | 101 static LogFunction *log_function_mapping_; |
102 }; | 102 }; |
103 | 103 |
104 } // namespace IPC | 104 } // namespace IPC |
105 | 105 |
106 #endif // IPC_MESSAGE_LOG_ENABLED | 106 #endif // IPC_MESSAGE_LOG_ENABLED |
107 | 107 |
108 #endif // CHROME_COMMON_IPC_LOGGING_H_ | 108 #endif // CHROME_COMMON_IPC_LOGGING_H_ |
109 | 109 |
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