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/*
Copyright (C) 1998-99 Paul Barton-Davis
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id$
*/
#include <cstdlib>
#include <signal.h>
#include <string>
#include "pbd/transmitter.h"
#include "pbd/error.h"
using std::string;
using std::ios;
Transmitter::Transmitter (Channel c)
{
channel = c;
switch (c) {
case Error:
send = &error;
break;
case Warning:
send = &warning;
break;
case Info:
send = &info;
break;
case Fatal:
send = &fatal;
break;
case Throw:
/* we should never call Transmitter::deliver
for thrown messages (because its overridden in the
class heirarchy). force a segv if we do.
*/
send = 0;
break;
}
}
void
Transmitter::deliver ()
{
string foo;
/* NOTE: this is just a default action for a Transmitter or a
derived class. Any class can override this to produce some
other action when deliver() is called.
*/
*this << '\0';
/* send the SigC++ signal */
foo = str();
(*send) (channel, foo.c_str());
/* XXX when or how can we delete this ? */
// delete foo;
/* return to a pristine state */
clear ();
seekp (0, ios::beg);
seekg (0, ios::beg);
/* do the right thing if this should not return */
if (does_not_return()) {
#ifndef PLATFORM_WINDOWS
// TODO !!!! Commented out temporarily (for Windows)
sigset_t mask;
sigemptyset (&mask);
sigsuspend (&mask);
/*NOTREACHED*/
exit (1);
/* JE - From what I can tell, the above code suspends
* program execution until (any) signal occurs. Not
* sure at the moment what this achieves, unless it
* provides some time for the user to see the message.
*/
#endif
}
}
bool
Transmitter::does_not_return ()
{
if (channel == Fatal || channel == Throw) {
return true;
} else {
return false;
}
}
extern "C" {
void pbd_c_error (const char *str)
{
PBD::error << str << endmsg;
}
}
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