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comparison: ipc/unixfd/UnixFdWatcher.h
ipc/unixfd/UnixFdWatcher.h
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| 1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */ | |
| 2 /* vim: set ts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef mozilla_ipc_UnixFdWatcher_h | |
| 8 #define mozilla_ipc_UnixFdWatcher_h | |
| 9 | |
| 10 #include "base/message_loop.h" | |
| 11 #include "mozilla/FileUtils.h" | |
| 12 | |
| 13 namespace mozilla { | |
| 14 namespace ipc { | |
| 15 | |
| 16 class UnixFdWatcher : public MessageLoopForIO::Watcher | |
| 17 { | |
| 18 public: | |
| 19 enum { | |
| 20 READ_WATCHER = 1<<0, | |
| 21 WRITE_WATCHER = 1<<1 | |
| 22 }; | |
| 23 | |
| 24 virtual ~UnixFdWatcher(); | |
| 25 | |
| 26 MessageLoop* GetIOLoop() const | |
| 27 { | |
| 28 return mIOLoop; | |
| 29 } | |
| 30 | |
| 31 int GetFd() const | |
| 32 { | |
| 33 return mFd; | |
| 34 } | |
| 35 | |
| 36 bool IsOpen() const | |
| 37 { | |
| 38 return GetFd() >= 0; | |
| 39 } | |
| 40 | |
| 41 virtual void Close(); | |
| 42 | |
| 43 void AddWatchers(unsigned long aWatchers, bool aPersistent); | |
| 44 void RemoveWatchers(unsigned long aWatchers); | |
| 45 | |
| 46 // Callback method that's run before closing the file descriptor | |
| 47 virtual void OnClose() {}; | |
| 48 | |
| 49 // Callback method that's run on POSIX errors | |
| 50 virtual void OnError(const char* aFunction, int aErrno); | |
| 51 | |
| 52 protected: | |
| 53 UnixFdWatcher(MessageLoop* aIOLoop); | |
| 54 UnixFdWatcher(MessageLoop* aIOLoop, int aFd); | |
| 55 void SetFd(int aFd); | |
| 56 | |
| 57 private: | |
| 58 static bool FdIsNonBlocking(int aFd); | |
| 59 | |
| 60 MessageLoop* mIOLoop; | |
| 61 ScopedClose mFd; | |
| 62 MessageLoopForIO::FileDescriptorWatcher mReadWatcher; | |
| 63 MessageLoopForIO::FileDescriptorWatcher mWriteWatcher; | |
| 64 }; | |
| 65 | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 #endif |
