GNU Radio 2.x: gr_select_handler.h Source File

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# gr_select_handler.h

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    00001 /* -*- c++ -*- */
    00002 /*
    00003  * Copyright 2005 Free Software Foundation, Inc.
    00004  *
    00005  * This file is part of GNU Radio
    00006  *
    00007  * GNU Radio is free software; you can redistribute it and/or modify
    00008  * it under the terms of the GNU General Public License as published by
    00009  * the Free Software Foundation; either version 2, or (at your option)
    00010  * any later version.
    00011  *
    00012  * GNU Radio is distributed in the hope that it will be useful,
    00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00015  * GNU General Public License for more details.
    00016  *
    00017  * You should have received a copy of the GNU General Public License
    00018  * along with GNU Radio; see the file COPYING.  If not, write to
    00019  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00020  * Boston, MA 02111-1307, USA.
    00021  */
    00022
    00023 #ifndef INCLUDED_GR_SELECT_HANDLER_H
    00024 #define INCLUDED_GR_SELECT_HANDLER_H
    00025
    00026 #include <boost/shared_ptr.hpp>
    00027
    00028 class gr_select_handler;
    00029 typedef boost::shared_ptr<gr_select_handler> gr_select_handler_sptr;
    00030
    00031
    00037 class gr_select_handler
    00038 {
    00039   int   d_fd;
    00040
    00041 protected:
    00042   gr_select_handler(int file_descriptor);
    00043
    00044 public:
    00045   virtual ~gr_select_handler();
    00046
    00047   int fd() const { return d_fd; }
    00048   int file_descriptor() const { return d_fd; }
    00049
    00056   virtual void handle_read() = 0;
    00057
    00064   virtual void handle_write() = 0;
    00065
    00072   virtual bool readable() { return true; }
    00073
    00080   virtual bool writable() { return true; }
    00081 };
    00082
    00083 #endif /* INCLUDED_GR_SELECT_HANDLER_H */