Paul Davis
6edccc3070
git-svn-id: svn://localhost/ardour2/trunk@1535 d708f5d6-7413-0410-9779-e7cbd77b26cf
110 lines
2.6 KiB
C++
110 lines
2.6 KiB
C++
/*
|
|
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.
|
|
|
|
*/
|
|
|
|
#ifndef __libmisc_transmitter_h__
|
|
#define __libmisc_transmitter_h__
|
|
|
|
#include <sstream>
|
|
#include <iostream>
|
|
|
|
#include <sigc++/sigc++.h>
|
|
|
|
using std::cout;
|
|
using std::cerr;
|
|
using std::endl;
|
|
|
|
class Transmitter : public std::stringstream
|
|
|
|
{
|
|
public:
|
|
enum Channel {
|
|
Info,
|
|
Error,
|
|
Warning,
|
|
Fatal,
|
|
Throw
|
|
};
|
|
|
|
Transmitter (Channel);
|
|
|
|
sigc::signal<void,Channel, const char *> &sender() {
|
|
return *send;
|
|
}
|
|
|
|
bool does_not_return ();
|
|
|
|
protected:
|
|
virtual void deliver ();
|
|
friend std::ostream& endmsg (std::ostream &);
|
|
|
|
private:
|
|
Channel channel;
|
|
sigc::signal<void, Channel, const char *> *send;
|
|
|
|
sigc::signal<void, Channel, const char *> info;
|
|
sigc::signal<void, Channel, const char *> warning;
|
|
sigc::signal<void, Channel, const char *> error;
|
|
sigc::signal<void, Channel, const char *> fatal;
|
|
};
|
|
|
|
/* for EGCS 2.91.66, if this function is not compiled within the same
|
|
compilation unit as the one where a ThrownError is thrown, then
|
|
nothing will catch the error. This is a pretty small function, so
|
|
inlining it here seems like a reasonable workaround.
|
|
*/
|
|
|
|
inline std::ostream &
|
|
endmsg (std::ostream &ostr)
|
|
|
|
{
|
|
Transmitter *t;
|
|
|
|
/* There is a serious bug in the Cygnus/GCC libstdc++ library:
|
|
cout is not actually an ostream, but a trick was played
|
|
to make the compiler think that it is. This will cause
|
|
the dynamic_cast<> to fail with SEGV. So, first check to
|
|
see if ostr == cout, and handle it specially.
|
|
*/
|
|
|
|
if (&ostr == &cout) {
|
|
cout << endl;
|
|
return ostr;
|
|
} else if (&ostr == &cerr) {
|
|
cerr << endl;
|
|
return ostr;
|
|
}
|
|
|
|
if ((t = dynamic_cast<Transmitter *> (&ostr)) != 0) {
|
|
t->deliver ();
|
|
} else {
|
|
/* hmm. not a Transmitter, so just put a newline on
|
|
it and assume that that will be enough.
|
|
*/
|
|
|
|
ostr << endl;
|
|
}
|
|
|
|
return ostr;
|
|
}
|
|
|
|
|
|
extern "C" { void pbd_c_error (const char *); }
|
|
|
|
#endif // __libmisc_transmitter_h__
|