2 Copyright (C) 1998-99 Paul Barton-Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __libmisc_transmitter_h__
21 #define __libmisc_transmitter_h__
26 #include <sigc++/sigc++.h>
28 class Transmitter : public std::stringstream
40 Transmitter (Channel);
42 sigc::signal<void,Channel, const char *> &sender() {
46 bool does_not_return ();
49 virtual void deliver ();
50 friend std::ostream& endmsg (std::ostream &);
54 sigc::signal<void, Channel, const char *> *send;
56 sigc::signal<void, Channel, const char *> info;
57 sigc::signal<void, Channel, const char *> warning;
58 sigc::signal<void, Channel, const char *> error;
59 sigc::signal<void, Channel, const char *> fatal;
62 /* for EGCS 2.91.66, if this function is not compiled within the same
63 compilation unit as the one where a ThrownError is thrown, then
64 nothing will catch the error. This is a pretty small function, so
65 inlining it here seems like a reasonable workaround.
69 endmsg (std::ostream &ostr)
74 /* There is a serious bug in the Cygnus/GCC libstdc++ library:
75 cout is not actually an ostream, but a trick was played
76 to make the compiler think that it is. This will cause
77 the dynamic_cast<> to fail with SEGV. So, first check to
78 see if ostr == cout, and handle it specially.
81 if (&ostr == &std::cout) {
82 std::cout << std::endl;
84 } else if (&ostr == &std::cerr) {
85 std::cerr << std::endl;
89 if ((t = dynamic_cast<Transmitter *> (&ostr)) != 0) {
92 /* hmm. not a Transmitter, so just put a newline on
93 it and assume that that will be enough.
103 extern "C" { void pbd_c_error (const char *); }
105 #endif // __libmisc_transmitter_h__