Es++ Class: SignalDescriptor

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Source code

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 *
 * Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
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 *
 *  SignalDescriptor.h
 *
 *****************************************************************************/

#pragma once

#include <es++/Object.h>
#include <es++/FileDescriptor.h>
#include <es++/Exception.h>
#include <sys/signalfd.h> 
#include <es++/SignalSet.h>
#include <es++/SignalParser.h>

namespace Es {

class SignalDescriptor :public FileDescriptor {
 
public:
  SignalDescriptor(int fd, SignalSet& set, int flags)
  :FileDescriptor()
  {
    //The fd can take -1.
    sigset_t mask = set.getSet();

    int sfd = signalfd(fd, &mask, flags);
    if (sfd == INVALID_FD) {
      throw Es::IException("Failed signalfd :%s", strerror(errno));
    } else {
      setFD(sfd);
    }
  }

public:
  SignalDescriptor(int fd, const sigset_t* mask, int flags)
  :FileDescriptor()
  {
    //The fd can take -1. 
    int sfd = signalfd(fd, mask, flags);
    if (sfd == INVALID_FD) {
      throw Es::IException("Failed signalfd :%s", strerror(errno));
    } else {
      setFD(sfd);
    }
  }

  void read(SignalParser& parser)
  {
    ssize_t size = FileDescriptor::read((void*)parser.getBuffer(),
                                               parser.getBufferSize());
    parser.parse(size);
  }
};
}


Last modified: 27 July 2017

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