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       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim:set ts=2 sw=2 sts=2 et cindent: */
       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 PollableEvent_h__
       8             : #define PollableEvent_h__
       9             : 
      10             : #include "mozilla/Mutex.h"
      11             : 
      12             : namespace mozilla {
      13             : namespace net {
      14             : 
      15             : // class must be called locked
      16             : class PollableEvent
      17             : {
      18             : public:
      19             :   PollableEvent();
      20             :   ~PollableEvent();
      21             : 
      22             :   // Signal/Clear return false only if they fail
      23             :   bool Signal();
      24             :   bool Clear();
      25           3 :   bool Valid() { return mWriteFD && mReadFD; }
      26             : 
      27           3 :   PRFileDesc *PollableFD() { return mReadFD; }
      28             : 
      29             : private:
      30             :   PRFileDesc *mWriteFD;
      31             :   PRFileDesc *mReadFD;
      32             :   bool        mSignaled;
      33             : };
      34             : 
      35             : } // namespace net
      36             : } // namespace mozilla
      37             : 
      38             : #endif