70 lines
1.5 KiB
C++
70 lines
1.5 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_ipc_UnixFdWatcher_h
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#define mozilla_ipc_UnixFdWatcher_h
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#include "base/message_loop.h"
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#include "mozilla/FileUtils.h"
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namespace mozilla {
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namespace ipc {
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class UnixFdWatcher : public MessageLoopForIO::Watcher
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{
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public:
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enum {
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READ_WATCHER = 1<<0,
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WRITE_WATCHER = 1<<1
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};
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virtual ~UnixFdWatcher();
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MessageLoop* GetIOLoop() const
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{
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return mIOLoop;
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}
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int GetFd() const
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{
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return mFd;
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}
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bool IsOpen() const
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{
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return GetFd() >= 0;
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}
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virtual void Close();
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void AddWatchers(unsigned long aWatchers, bool aPersistent);
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void RemoveWatchers(unsigned long aWatchers);
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// Callback method that's run before closing the file descriptor
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virtual void OnClose() {};
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// Callback method that's run on POSIX errors
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virtual void OnError(const char* aFunction, int aErrno);
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protected:
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UnixFdWatcher(MessageLoop* aIOLoop);
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UnixFdWatcher(MessageLoop* aIOLoop, int aFd);
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void SetFd(int aFd);
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private:
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static bool FdIsNonBlocking(int aFd);
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MessageLoop* mIOLoop;
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ScopedClose mFd;
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MessageLoopForIO::FileDescriptorWatcher mReadWatcher;
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MessageLoopForIO::FileDescriptorWatcher mWriteWatcher;
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};
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}
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}
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#endif
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