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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 CONTENT_CHILD_NPAPI_NP_CHANNEL_BASE_H_ | 5 #ifndef CONTENT_CHILD_NPAPI_NP_CHANNEL_BASE_H_ |
6 #define CONTENT_CHILD_NPAPI_NP_CHANNEL_BASE_H_ | 6 #define CONTENT_CHILD_NPAPI_NP_CHANNEL_BASE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
11 #include "base/containers/hash_tables.h" | 11 #include "base/containers/hash_tables.h" |
12 #include "base/memory/ref_counted.h" | 12 #include "base/memory/ref_counted.h" |
13 #include "base/memory/scoped_ptr.h" | 13 #include "base/memory/scoped_ptr.h" |
14 #include "base/process/process.h" | 14 #include "base/process/process.h" |
15 #include "content/child/npapi/npobject_base.h" | 15 #include "content/child/npapi/npobject_base.h" |
16 #include "content/common/message_router.h" | 16 #include "content/common/message_router.h" |
17 #include "ipc/ipc_channel_handle.h" | 17 #include "ipc/ipc_channel_handle.h" |
18 #include "ipc/ipc_sync_channel.h" | 18 #include "ipc/ipc_sync_channel.h" |
19 | 19 |
20 namespace base { | 20 namespace base { |
21 class MessageLoopProxy; | 21 class SingleThreadTaskRunner; |
22 } | 22 } |
23 | 23 |
24 namespace content { | 24 namespace content { |
25 | 25 |
26 // Encapsulates an IPC channel between a renderer and another process. Used to | 26 // Encapsulates an IPC channel between a renderer and another process. Used to |
27 // proxy access to NP objects. | 27 // proxy access to NP objects. |
28 class NPChannelBase : public IPC::Listener, | 28 class NPChannelBase : public IPC::Listener, |
29 public IPC::Sender, | 29 public IPC::Sender, |
30 public base::RefCountedThreadSafe<NPChannelBase> { | 30 public base::RefCountedThreadSafe<NPChannelBase> { |
31 public: | 31 public: |
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93 friend class base::RefCountedThreadSafe<NPChannelBase>; | 93 friend class base::RefCountedThreadSafe<NPChannelBase>; |
94 | 94 |
95 ~NPChannelBase() override; | 95 ~NPChannelBase() override; |
96 | 96 |
97 // Returns a NPChannelBase derived object for the given channel name. | 97 // Returns a NPChannelBase derived object for the given channel name. |
98 // If an existing channel exists returns that object, otherwise creates a | 98 // If an existing channel exists returns that object, otherwise creates a |
99 // new one. Even though on creation the object is refcounted, each caller | 99 // new one. Even though on creation the object is refcounted, each caller |
100 // must still ref count the returned value. When there are no more routes | 100 // must still ref count the returned value. When there are no more routes |
101 // on the channel and its ref count is 0, the object deletes itself. | 101 // on the channel and its ref count is 0, the object deletes itself. |
102 static NPChannelBase* GetChannel( | 102 static NPChannelBase* GetChannel( |
103 const IPC::ChannelHandle& channel_handle, IPC::Channel::Mode mode, | 103 const IPC::ChannelHandle& channel_handle, |
104 ChannelFactory factory, base::MessageLoopProxy* ipc_message_loop, | 104 IPC::Channel::Mode mode, |
105 bool create_pipe_now, base::WaitableEvent* shutdown_event); | 105 ChannelFactory factory, |
| 106 base::SingleThreadTaskRunner* ipc_task_runner, |
| 107 bool create_pipe_now, |
| 108 base::WaitableEvent* shutdown_event); |
106 | 109 |
107 // Sends a message to all instances. | 110 // Sends a message to all instances. |
108 static void Broadcast(IPC::Message* message); | 111 static void Broadcast(IPC::Message* message); |
109 | 112 |
110 // Called on the worker thread | 113 // Called on the worker thread |
111 NPChannelBase(); | 114 NPChannelBase(); |
112 | 115 |
113 virtual void CleanUp() { } | 116 virtual void CleanUp() { } |
114 | 117 |
115 // Implemented by derived classes to handle control messages | 118 // Implemented by derived classes to handle control messages |
116 virtual bool OnControlMessageReceived(const IPC::Message& msg); | 119 virtual bool OnControlMessageReceived(const IPC::Message& msg); |
117 | 120 |
118 // IPC::Listener implementation: | 121 // IPC::Listener implementation: |
119 bool OnMessageReceived(const IPC::Message& msg) override; | 122 bool OnMessageReceived(const IPC::Message& msg) override; |
120 void OnChannelConnected(int32 peer_pid) override; | 123 void OnChannelConnected(int32 peer_pid) override; |
121 void OnChannelError() override; | 124 void OnChannelError() override; |
122 | 125 |
123 void set_send_unblocking_only_during_unblock_dispatch() { | 126 void set_send_unblocking_only_during_unblock_dispatch() { |
124 send_unblocking_only_during_unblock_dispatch_ = true; | 127 send_unblocking_only_during_unblock_dispatch_ = true; |
125 } | 128 } |
126 | 129 |
127 virtual bool Init(base::MessageLoopProxy* ipc_message_loop, | 130 virtual bool Init(base::SingleThreadTaskRunner* ipc_task_runner, |
128 bool create_pipe_now, | 131 bool create_pipe_now, |
129 base::WaitableEvent* shutdown_event); | 132 base::WaitableEvent* shutdown_event); |
130 | 133 |
131 scoped_ptr<IPC::SyncChannel> channel_; | 134 scoped_ptr<IPC::SyncChannel> channel_; |
132 IPC::ChannelHandle channel_handle_; | 135 IPC::ChannelHandle channel_handle_; |
133 | 136 |
134 private: | 137 private: |
135 IPC::Channel::Mode mode_; | 138 IPC::Channel::Mode mode_; |
136 // This tracks the number of routes registered without an NPObject. It's used | 139 // This tracks the number of routes registered without an NPObject. It's used |
137 // to manage the lifetime of this object. See comment for AddRoute() and | 140 // to manage the lifetime of this object. See comment for AddRoute() and |
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186 // have the unblock flag set, since they could be followed by a sync message | 189 // have the unblock flag set, since they could be followed by a sync message |
187 // that won't get dispatched until the call to the renderer is complete. | 190 // that won't get dispatched until the call to the renderer is complete. |
188 bool send_unblocking_only_during_unblock_dispatch_; | 191 bool send_unblocking_only_during_unblock_dispatch_; |
189 | 192 |
190 DISALLOW_COPY_AND_ASSIGN(NPChannelBase); | 193 DISALLOW_COPY_AND_ASSIGN(NPChannelBase); |
191 }; | 194 }; |
192 | 195 |
193 } // namespace content | 196 } // namespace content |
194 | 197 |
195 #endif // CONTENT_CHILD_NPAPI_NP_CHANNEL_BASE_H_ | 198 #endif // CONTENT_CHILD_NPAPI_NP_CHANNEL_BASE_H_ |
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