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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 #ifndef IPC_IPC_CHANNEL_H_ | 5 #ifndef IPC_IPC_CHANNEL_H_ |
6 #define IPC_IPC_CHANNEL_H_ | 6 #define IPC_IPC_CHANNEL_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #if defined(OS_POSIX) | 10 #if defined(OS_POSIX) |
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233 static void SetGlobalPid(int pid); | 233 static void SetGlobalPid(int pid); |
234 #endif | 234 #endif |
235 | 235 |
236 #if defined(OS_ANDROID) | 236 #if defined(OS_ANDROID) |
237 // Most tests are single process and work the same on all platforms. However | 237 // Most tests are single process and work the same on all platforms. However |
238 // in some cases we want to test multi-process, and Android differs in that it | 238 // in some cases we want to test multi-process, and Android differs in that it |
239 // can't 'exec' after forking. This callback resets any data in the forked | 239 // can't 'exec' after forking. This callback resets any data in the forked |
240 // process such that it acts similar to if it was exec'd, for tests. | 240 // process such that it acts similar to if it was exec'd, for tests. |
241 static void NotifyProcessForkedForTesting(); | 241 static void NotifyProcessForkedForTesting(); |
242 #endif | 242 #endif |
| 243 |
| 244 protected: |
| 245 // An OutputElement is a wrapper around a Message or raw buffer while it is |
| 246 // waiting to be passed to the system's underlying IPC mechanism. |
| 247 class OutputElement { |
| 248 public: |
| 249 // Takes ownership of message. |
| 250 OutputElement(Message* message); |
| 251 // Takes ownership of the buffer. |buffer| is freed via free(), so it |
| 252 // must be malloced. |
| 253 OutputElement(void* buffer, size_t length); |
| 254 ~OutputElement(); |
| 255 size_t size() const { return message_ ? message_->size() : length_; } |
| 256 const void* data() const { return message_ ? message_->data() : buffer_; } |
| 257 const Message* get_message() const { return message_.get(); } |
| 258 |
| 259 private: |
| 260 scoped_ptr<const Message> message_; |
| 261 void* buffer_; |
| 262 size_t length_; |
| 263 }; |
243 }; | 264 }; |
244 | 265 |
245 #if defined(OS_POSIX) | 266 #if defined(OS_POSIX) |
246 // SocketPair() creates a pair of socket FDs suitable for using with | 267 // SocketPair() creates a pair of socket FDs suitable for using with |
247 // IPC::Channel. | 268 // IPC::Channel. |
248 IPC_EXPORT bool SocketPair(int* fd1, int* fd2); | 269 IPC_EXPORT bool SocketPair(int* fd1, int* fd2); |
249 #endif | 270 #endif |
250 | 271 |
251 } // namespace IPC | 272 } // namespace IPC |
252 | 273 |
253 #endif // IPC_IPC_CHANNEL_H_ | 274 #endif // IPC_IPC_CHANNEL_H_ |
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