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example.cc

/************************************************************************
 *
 * $Id: example.cc,v 1.9 2002/10/16 19:36:38 crooney Exp $
 *
 ***********************************************************************/

/**************************************************************************
Copyright 2001, Christopher Rooney crooney@crooney.com

This file is part of fpoller.

fpoller is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

fpoller is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with fpoller; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*************************************************************************/

#include <iostream>
#include <string>
#include <sys/types.h>
#include <sys/socket.h>
#include <signal.h>
#include <errno.h>

#include "poller.h"
#include "callbacks.h"

namespace /*anonymous*/{
#ifdef TRADITIONAL
  typedef fpoller::traditional_poller example_poller;
#else
  typedef fpoller::poller example_poller;
#endif
  example_poller *the_poller = NULL;
}

typedef fpoller::write_callback<const char, fpoller::writer::close_on_exit> example_writer;

struct example_parser{
  example_parser(){}
  void parse (int fd, svec &incoming, int request_size){
    the_poller->add(fd,fpoller::WRITE,new example_writer(pcc(incoming),request_size));
  }
};

typedef fpoller::read_callback<example_parser,
  fpoller::reader::socket_read, fpoller::reader::purge,fpoller::reader::stderr_report,fpoller::reader::termination_string>
example_reader;

int main(){
  signal(SIGPIPE,SIG_IGN);
  fpoller::reader::termination_string::set_terminator("\n");
  int fd;
  try {
    the_poller = new example_poller;
    fd = fpoller::get_listen_socket(8081);
    fpoller::set_non_blocking(fd);
  }catch (fpoller::exception &e){
    std::cerr <<"fatal error. "<<e.where()<<"\n\t"<<e.what()<<"\n";
    exit(1);
  }
  the_poller->add(fd,fpoller::READ,new fpoller::accept_callback<example_reader,example_poller>(the_poller));
  int nready;
  for (;;){
    if ((nready = the_poller->poll(1000)) >= 0){
      std::cerr <<"poll finished "<<nready<<" ready \n";
    }else{
      std::cerr <<"errno == "<<errno<<" error from poll(): "<< strerror(errno) <<"\n";
    }
  }//for
  delete the_poller;
  return 0;
}


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