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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 #include "ipc/ipc_channel_posix.h" | 5 #include "ipc/ipc_channel_posix.h" |
6 | 6 |
7 #include <errno.h> | 7 #include <errno.h> |
8 #include <fcntl.h> | 8 #include <fcntl.h> |
9 #include <stddef.h> | 9 #include <stddef.h> |
10 #include <stdint.h> | 10 #include <stdint.h> |
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88 // connects. Once the client connects, the server will close the original | 88 // connects. Once the client connects, the server will close the original |
89 // copy of the client socket and remove the mapping. Thus, when the client | 89 // copy of the client socket and remove the mapping. Thus, when the client |
90 // object closes, it will close the only remaining copy of the client socket | 90 // object closes, it will close the only remaining copy of the client socket |
91 // in the fd table and the server will see EOF on its side. | 91 // in the fd table and the server will see EOF on its side. |
92 // | 92 // |
93 // TODO(port): a client process cannot connect to multiple IPC channels with | 93 // TODO(port): a client process cannot connect to multiple IPC channels with |
94 // this scheme. | 94 // this scheme. |
95 | 95 |
96 class PipeMap { | 96 class PipeMap { |
97 public: | 97 public: |
98 static PipeMap* GetInstance() { | 98 static PipeMap* GetInstance() { return base::Singleton<PipeMap>::get(); } |
99 return Singleton<PipeMap>::get(); | |
100 } | |
101 | 99 |
102 ~PipeMap() { | 100 ~PipeMap() { |
103 // Shouldn't have left over pipes. | 101 // Shouldn't have left over pipes. |
104 DCHECK(map_.empty()); | 102 DCHECK(map_.empty()); |
105 } | 103 } |
106 | 104 |
107 // Lookup a given channel id. Return -1 if not found. | 105 // Lookup a given channel id. Return -1 if not found. |
108 int Lookup(const std::string& channel_id) { | 106 int Lookup(const std::string& channel_id) { |
109 base::AutoLock locked(lock_); | 107 base::AutoLock locked(lock_); |
110 | 108 |
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132 << "for '" << channel_id << "' while first " | 130 << "for '" << channel_id << "' while first " |
133 << "(fd " << i->second << ") still exists"; | 131 << "(fd " << i->second << ") still exists"; |
134 map_[channel_id] = fd; | 132 map_[channel_id] = fd; |
135 } | 133 } |
136 | 134 |
137 private: | 135 private: |
138 base::Lock lock_; | 136 base::Lock lock_; |
139 typedef std::map<std::string, int> ChannelToFDMap; | 137 typedef std::map<std::string, int> ChannelToFDMap; |
140 ChannelToFDMap map_; | 138 ChannelToFDMap map_; |
141 | 139 |
142 friend struct DefaultSingletonTraits<PipeMap>; | 140 friend struct base::DefaultSingletonTraits<PipeMap>; |
143 #if defined(OS_ANDROID) | 141 #if defined(OS_ANDROID) |
144 friend void ::IPC::Channel::NotifyProcessForkedForTesting(); | 142 friend void ::IPC::Channel::NotifyProcessForkedForTesting(); |
145 #endif | 143 #endif |
146 }; | 144 }; |
147 | 145 |
148 //------------------------------------------------------------------------------ | 146 //------------------------------------------------------------------------------ |
149 | 147 |
150 bool SocketWriteErrorIsRecoverable() { | 148 bool SocketWriteErrorIsRecoverable() { |
151 #if defined(OS_MACOSX) | 149 #if defined(OS_MACOSX) |
152 // On OS X if sendmsg() is trying to send fds between processes and there | 150 // On OS X if sendmsg() is trying to send fds between processes and there |
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1045 } | 1043 } |
1046 | 1044 |
1047 #if defined(OS_LINUX) | 1045 #if defined(OS_LINUX) |
1048 // static | 1046 // static |
1049 void Channel::SetGlobalPid(int pid) { | 1047 void Channel::SetGlobalPid(int pid) { |
1050 ChannelPosix::SetGlobalPid(pid); | 1048 ChannelPosix::SetGlobalPid(pid); |
1051 } | 1049 } |
1052 #endif // OS_LINUX | 1050 #endif // OS_LINUX |
1053 | 1051 |
1054 } // namespace IPC | 1052 } // namespace IPC |
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