PollEvent.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#include "pedigree/kernel/process/Event.h"
#include "pedigree/kernel/process/eventNumbers.h"
 
#include <poll.h>
 
class File;
class Semaphore;
 
class PollEvent : public Event {
 public:
  PollEvent();
  PollEvent(Semaphore* pSemaphore, struct pollfd* fd, int revent, File* pFile);
  virtual ~PollEvent();
 
  void fire();
 
  File* getFile() {
    return m_pFile;
  }
 
  //
  // Event interface
  //
  virtual size_t serialize(uint8_t* pBuffer);
  static bool unserialize(uint8_t* pBuffer, PollEvent& event);
  virtual size_t getNumber() {
    return EventNumbers::PollEvent;
  }
 
 private:
  Semaphore* m_pSemaphore;
  struct pollfd* m_pFd;
  int m_nREvent;
  File* m_pFile;
};