Merge branch 'dfsg-orig'

[debian/gnuradio] / usrp / host / lib / usrp_local_sighandler.cc

diff --git a/usrp/host/lib/usrp_local_sighandler.cc b/usrp/host/lib/usrp_local_sighandler.cc
new file mode 100644 (file)
index 0000000..5901397
--- /dev/null
+++ b/usrp/host/lib/usrp_local_sighandler.cc
@@ -0,0 +1,191 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2009 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.
+ */
+
+/*
+ * This is actually the same as gr_local_signhandler, but with a different name.
+ * We don't have a common library to put this in, so...
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <usrp/usrp_local_sighandler.h>
+#include <stdexcept>
+#include <stdio.h>
+#include <string.h>
+
+usrp_local_sighandler::usrp_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
+}
+
+usrp_local_sighandler::~usrp_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
+usrp_local_sighandler::throw_signal(int signum) throw(usrp_signal)
+{
+  throw usrp_signal (signum);
+}
+
+/*
+ * Semi-hideous way to may a signal number into a signal name
+ */
+
+#define SIGNAME(x) case x: return #x
+
+std::string
+usrp_signal::name () const
+{
+  char tmp[128];
+
+  switch (signal ()){
+#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 (signal () >= SIGRTMIN && signal () <= SIGRTMAX){
+      snprintf (tmp, sizeof (tmp), "SIGRTMIN + %d", signal ());
+      return tmp;
+    }
+#endif
+    snprintf (tmp, sizeof (tmp), "SIGNAL %d", signal ());
+    return tmp;
+#else
+    return "Unknown signal";
+#endif
+  }
+}