GNU Radio 2.x: gr_timer.h Source File

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# gr_timer.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 #ifndef INCLUDED_GR_TIMER_H
    00023 #define INCLUDED_GR_TIMER_H
    00024
    00025 #include <gr_types.h>
    00026
    00027 class gr_timer;
    00028
    00029 typedef boost::shared_ptr<gr_timer> gr_timer_sptr;
    00030
    00031 typedef void (*gr_timer_hook)(gr_timer *, void *);
    00032
    00038 gr_timer_sptr gr_make_timer (gr_timer_hook, void *);
    00039
    00043 class gr_timer {
    00044   double        d_expiry;
    00045   double        d_period;
    00046   gr_timer_hook d_hook;
    00047   void         *d_hook_arg;
    00048
    00049   friend gr_timer_sptr gr_make_timer (gr_timer_hook, void *);
    00050
    00051   gr_timer (...);
    00052
    00053 public:
    00054   ~gr_timer ();
    00055
    00057   static double now ();
    00058
    00063   void schedule_at (double abs_when);
    00064
    00069   void schedule_after (double rel_when);        // relative time in seconds
    00070
    00076   void schedule_periodic (double abs_when, double period);
    00077
    00079   void unschedule ();
    00080 };
    00081
    00082 #endif /* INCLUDED_GR_TIMER_H */