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|
/* -*- c++ -*- */
/*
* Copyright 2004,2013 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "local_sighandler.h"
#include <stdio.h>
#include <string.h>
#include <stdexcept>
namespace gr {
local_sighandler::local_sighandler(int signum, void (*new_handler)(int))
: d_signum(signum)
{
#ifdef HAVE_SIGACTION
struct sigaction new_action;
memset(&new_action, 0, sizeof(new_action));
new_action.sa_handler = new_handler;
sigemptyset(&new_action.sa_mask);
new_action.sa_flags = 0;
if (sigaction(d_signum, &new_action, &d_old_action) < 0) {
perror("sigaction (install new)");
throw std::runtime_error("sigaction");
}
#endif
}
local_sighandler::~local_sighandler()
{
#ifdef HAVE_SIGACTION
if (sigaction(d_signum, &d_old_action, 0) < 0) {
perror("sigaction (restore old)");
throw std::runtime_error("sigaction");
}
#endif
}
void local_sighandler::throw_signal(int signum) { throw signal(signum); }
/*
* Semi-hideous way to may a signal number into a signal name
*/
#define SIGNAME(x) \
case x: \
return #x
std::string signal::name() const
{
char tmp[128];
switch (signum()) {
#ifdef SIGHUP
SIGNAME(SIGHUP);
#endif
#ifdef SIGINT
SIGNAME(SIGINT);
#endif
#ifdef SIGQUIT
SIGNAME(SIGQUIT);
#endif
#ifdef SIGILL
SIGNAME(SIGILL);
#endif
#ifdef SIGTRAP
SIGNAME(SIGTRAP);
#endif
#ifdef SIGABRT
SIGNAME(SIGABRT);
#endif
#ifdef SIGBUS
SIGNAME(SIGBUS);
#endif
#ifdef SIGFPE
SIGNAME(SIGFPE);
#endif
#ifdef SIGKILL
SIGNAME(SIGKILL);
#endif
#ifdef SIGUSR1
SIGNAME(SIGUSR1);
#endif
#ifdef SIGSEGV
SIGNAME(SIGSEGV);
#endif
#ifdef SIGUSR2
SIGNAME(SIGUSR2);
#endif
#ifdef SIGPIPE
SIGNAME(SIGPIPE);
#endif
#ifdef SIGALRM
SIGNAME(SIGALRM);
#endif
#ifdef SIGTERM
SIGNAME(SIGTERM);
#endif
#ifdef SIGSTKFLT
SIGNAME(SIGSTKFLT);
#endif
#ifdef SIGCHLD
SIGNAME(SIGCHLD);
#endif
#ifdef SIGCONT
SIGNAME(SIGCONT);
#endif
#ifdef SIGSTOP
SIGNAME(SIGSTOP);
#endif
#ifdef SIGTSTP
SIGNAME(SIGTSTP);
#endif
#ifdef SIGTTIN
SIGNAME(SIGTTIN);
#endif
#ifdef SIGTTOU
SIGNAME(SIGTTOU);
#endif
#ifdef SIGURG
SIGNAME(SIGURG);
#endif
#ifdef SIGXCPU
SIGNAME(SIGXCPU);
#endif
#ifdef SIGXFSZ
SIGNAME(SIGXFSZ);
#endif
#ifdef SIGVTALRM
SIGNAME(SIGVTALRM);
#endif
#ifdef SIGPROF
SIGNAME(SIGPROF);
#endif
#ifdef SIGWINCH
SIGNAME(SIGWINCH);
#endif
#ifdef SIGIO
SIGNAME(SIGIO);
#endif
#ifdef SIGPWR
SIGNAME(SIGPWR);
#endif
#ifdef SIGSYS
SIGNAME(SIGSYS);
#endif
default:
#if defined(HAVE_SNPRINTF)
#if defined(SIGRTMIN) && defined(SIGRTMAX)
if (signum() >= SIGRTMIN && signum() <= SIGRTMAX) {
snprintf(tmp, sizeof(tmp), "SIGRTMIN + %d", signum());
return tmp;
}
#endif
snprintf(tmp, sizeof(tmp), "SIGNAL %d", signum());
return tmp;
#else
return "Unknown signal";
#endif
}
}
} /* namespace gr */
|
