The Tor Browser: ipc/unixfd/UnixFdWatcher.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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/. */

     7 #ifndef mozilla_ipc_UnixFdWatcher_h

     8 #define mozilla_ipc_UnixFdWatcher_h

    10 #include "base/message_loop.h"

    11 #include "mozilla/FileUtils.h"

    13 namespace mozilla {

    14 namespace ipc {

    16 class UnixFdWatcher : public MessageLoopForIO::Watcher

    17 {

    18 public:

    19   enum {

    20     READ_WATCHER = 1<<0,

    21     WRITE_WATCHER = 1<<1

    22   };

    24   virtual ~UnixFdWatcher();

    26   MessageLoop* GetIOLoop() const

    27   {

    28     return mIOLoop;

    29   }

    31   int GetFd() const

    32   {

    33     return mFd;

    34   }

    36   bool IsOpen() const

    37   {

    38     return GetFd() >= 0;

    39   }

    41   virtual void Close();

    43   void AddWatchers(unsigned long aWatchers, bool aPersistent);

    44   void RemoveWatchers(unsigned long aWatchers);

    46   // Callback method that's run before closing the file descriptor

    47   virtual void OnClose() {};

    49   // Callback method that's run on POSIX errors

    50   virtual void OnError(const char* aFunction, int aErrno);

    52 protected:

    53   UnixFdWatcher(MessageLoop* aIOLoop);

    54   UnixFdWatcher(MessageLoop* aIOLoop, int aFd);

    55   void SetFd(int aFd);

    57 private:

    58   static bool FdIsNonBlocking(int aFd);

    60   MessageLoop* mIOLoop;

    61   ScopedClose mFd;

    62   MessageLoopForIO::FileDescriptorWatcher mReadWatcher;

    63   MessageLoopForIO::FileDescriptorWatcher mWriteWatcher;

    64 };

    66 }

    67 }

    69 #endif

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