GNU Radio 3.5.1 C++ API
gr_local_sighandler.h
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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2004 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 3, 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., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 
00023 #ifndef INCLUDED_GR_LOCAL_SIGHANDLER_H
00024 #define INCLUDED_GR_LOCAL_SIGHANDLER_H
00025 
00026 #ifdef HAVE_SIGNAL_H
00027 #include <signal.h>
00028 #endif
00029 
00030 #include <gr_core_api.h>
00031 #include <string>
00032 
00033 /*!
00034  * \brief Get and set signal handler.
00035  *
00036  * \ingroup internal
00037  * Constructor installs new handler, destructor reinstalls
00038  * original value.
00039  */
00040 class GR_CORE_API gr_local_sighandler {
00041   int                   d_signum;
00042 #ifdef HAVE_SIGACTION
00043   struct sigaction      d_old_action;
00044 #endif
00045 public:
00046   gr_local_sighandler (int signum, void (*new_handler)(int));
00047   ~gr_local_sighandler ();
00048 
00049   /* throw gr_signal (signum) */
00050   static void throw_signal (int signum);
00051 };
00052 
00053 /*!
00054  * \brief Representation of signal.
00055  */
00056 class GR_CORE_API gr_signal
00057 {
00058   int   d_signum;
00059 public:
00060   gr_signal (int signum) : d_signum (signum) {}
00061   int signal () const { return d_signum; }
00062   std::string name () const;
00063 };
00064 
00065 #endif /* INCLUDED_GR_LOCAL_SIGHANDLER_H */