OLD | NEW |
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 IPC_IPC_CHANNEL_NACL_H_ | 5 #ifndef IPC_IPC_CHANNEL_NACL_H_ |
6 #define IPC_IPC_CHANNEL_NACL_H_ | 6 #define IPC_IPC_CHANNEL_NACL_H_ |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/memory/linked_ptr.h" | 11 #include "base/memory/linked_ptr.h" |
12 #include "base/memory/scoped_ptr.h" | 12 #include "base/memory/scoped_ptr.h" |
13 #include "base/memory/weak_ptr.h" | 13 #include "base/memory/weak_ptr.h" |
14 #include "base/process/process.h" | 14 #include "base/process/process.h" |
15 #include "base/threading/simple_thread.h" | 15 #include "base/threading/simple_thread.h" |
16 #include "ipc/ipc_channel.h" | 16 #include "ipc/ipc_channel.h" |
17 #include "ipc/ipc_channel_reader.h" | 17 #include "ipc/ipc_channel_reader.h" |
18 | 18 |
19 namespace IPC { | 19 namespace IPC { |
20 | 20 |
21 // Contains the results from one call to imc_recvmsg (data and file | 21 // Contains the results from one call to imc_recvmsg (data and file |
22 // descriptors). | 22 // descriptors). |
23 struct MessageContents; | 23 struct MessageContents; |
24 | 24 |
25 // Similar to the Posix version of ChannelImpl but for Native Client code. | 25 // Similar to the ChannelPosix but for Native Client code. |
26 // This is somewhat different because sendmsg/recvmsg here do not follow POSIX | 26 // This is somewhat different because sendmsg/recvmsg here do not follow POSIX |
27 // semantics. Instead, they are implemented by a custom embedding of | 27 // semantics. Instead, they are implemented by a custom embedding of |
28 // NaClDescCustom. See NaClIPCAdapter for the trusted-side implementation. | 28 // NaClDescCustom. See NaClIPCAdapter for the trusted-side implementation. |
29 // | 29 // |
30 // We don't need to worry about complicated set up and READWRITE mode for | 30 // We don't need to worry about complicated set up and READWRITE mode for |
31 // sharing handles. We also currently do not support passing file descriptors or | 31 // sharing handles. We also currently do not support passing file descriptors or |
32 // named pipes, and we use background threads to emulate signaling when we can | 32 // named pipes, and we use background threads to emulate signaling when we can |
33 // read or write without blocking. | 33 // read or write without blocking. |
34 class Channel::ChannelImpl : public internal::ChannelReader { | 34 class ChannelNacl : public Channel, |
| 35 public internal::ChannelReader { |
35 public: | 36 public: |
36 // Mirror methods of Channel, see ipc_channel.h for description. | 37 // Mirror methods of Channel, see ipc_channel.h for description. |
37 ChannelImpl(const IPC::ChannelHandle& channel_handle, | 38 ChannelNacl(const IPC::ChannelHandle& channel_handle, |
38 Mode mode, | 39 Mode mode, |
39 Listener* listener); | 40 Listener* listener); |
40 virtual ~ChannelImpl(); | 41 virtual ~ChannelNacl(); |
41 | 42 |
42 // Channel implementation. | 43 // Channel implementation. |
43 base::ProcessId peer_pid() const; | 44 virtual base::ProcessId GetPeerPID() const OVERRIDE; |
44 bool Connect(); | 45 virtual bool Connect() OVERRIDE; |
45 void Close(); | 46 virtual void Close() OVERRIDE; |
46 bool Send(Message* message); | 47 virtual bool Send(Message* message) OVERRIDE; |
47 | 48 |
48 // Posted to the main thread by ReaderThreadRunner. | 49 // Posted to the main thread by ReaderThreadRunner. |
49 void DidRecvMsg(scoped_ptr<MessageContents> contents); | 50 void DidRecvMsg(scoped_ptr<MessageContents> contents); |
50 void ReadDidFail(); | 51 void ReadDidFail(); |
51 | 52 |
52 private: | 53 private: |
53 class ReaderThreadRunner; | 54 class ReaderThreadRunner; |
54 | 55 |
55 bool CreatePipe(const IPC::ChannelHandle& channel_handle); | 56 bool CreatePipe(const IPC::ChannelHandle& channel_handle); |
56 bool ProcessOutgoingMessages(); | 57 bool ProcessOutgoingMessages(); |
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
103 // Queue of file descriptors extracted from imc_recvmsg messages. | 104 // Queue of file descriptors extracted from imc_recvmsg messages. |
104 // NOTE: The implementation assumes underlying storage here is contiguous, so | 105 // NOTE: The implementation assumes underlying storage here is contiguous, so |
105 // don't change to something like std::deque<> without changing the | 106 // don't change to something like std::deque<> without changing the |
106 // implementation! | 107 // implementation! |
107 std::vector<int> input_fds_; | 108 std::vector<int> input_fds_; |
108 | 109 |
109 // This queue is used when a message is sent prior to Connect having been | 110 // This queue is used when a message is sent prior to Connect having been |
110 // called. Normally after we're connected, the queue is empty. | 111 // called. Normally after we're connected, the queue is empty. |
111 std::deque<linked_ptr<Message> > output_queue_; | 112 std::deque<linked_ptr<Message> > output_queue_; |
112 | 113 |
113 base::WeakPtrFactory<ChannelImpl> weak_ptr_factory_; | 114 base::WeakPtrFactory<ChannelNacl> weak_ptr_factory_; |
114 | 115 |
115 DISALLOW_IMPLICIT_CONSTRUCTORS(ChannelImpl); | 116 DISALLOW_IMPLICIT_CONSTRUCTORS(ChannelNacl); |
116 }; | 117 }; |
117 | 118 |
118 } // namespace IPC | 119 } // namespace IPC |
119 | 120 |
120 #endif // IPC_IPC_CHANNEL_NACL_H_ | 121 #endif // IPC_IPC_CHANNEL_NACL_H_ |
OLD | NEW |