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/* File: sprinkler.c
* Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
* Contributors:
* Krzysztof Czaja pointed out the MAX-incompatibility of the name 'forward'
* Miller Puckette suggested the name 'sprinkler'
* Erasmus Zipfel diagnosed a bug in sprinkler_list()
*
* Description: dynamic message-forwarding object
*
* + code adapted from 'send_class' in $PD_ROOT/src/x_connective.c
* + formerly 'forward.c'
*
*
* Copyright (c) 2002-2009 Bryan Jurish.
*
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
*
* 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.
*
* See file LICENSE for further informations on licensing terms.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*=============================================================================*/
#include <m_pd.h>
#include "mooPdUtils.h"
/* black magic */
#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif
/*--------------------------------------------------------------------
* DEBUG
*--------------------------------------------------------------------*/
//#define SPRINKLER_DEBUG 1
/*=====================================================================
* Constants
*=====================================================================*/
#ifdef SPRINKLER_DEBUG
// error-message buffer
#define EBUFSIZE 256
static char sprinkler_errbuf[EBUFSIZE];
#endif
/*=====================================================================
* Structures and Types
*=====================================================================*/
static char *sprinkler_banner =
"\nsprinkler version %s by Bryan Jurish : dynamic message dissemination";
static t_class *sprinkler_class;
typedef struct _sprinkler
{
t_object x_obj;
t_outlet *x_thru; //-- pass-through outlet
} t_sprinkler;
/*--------------------------------------------------------------------
* the guts:
* + send (the tail of) a list or message to the control-bus
* named by its initial element
* + [DEPRECATED] : HACK for single-element arglists *ONLY*
* - sprinkler float- and pointer-initial arglists with 'pd_sprinklermess',
* everything else with 'pd_forwardmess'
*--------------------------------------------------------------------*/
static void sprinkler_anything(t_sprinkler *x, t_symbol *dst, int argc, t_atom *argv)
{
#ifdef SPRINKLER_DEBUG
atom_string(argv, sprinkler_errbuf, EBUFSIZE);
post("sprinkler_debug : sprinkler_anything : dst=%s, argc=%d, arg1=%s",
dst->s_name, argc, argc ? sprinkler_errbuf : "NULL");
#endif
if (dst->s_thing) {
#if !defined(ALL_FORWARDMESS)
/*-----------------------------------------------------------------------
* HACK (obsolete):
* + single-element arglists *ONLY*
* + sprinkler float- and pointer-initial arglists with 'pd_sprinklermess',
* everything else with 'pd_forwardmess'
*------------------------------------------------------------------------
*/
if (argc == 1) {
switch (argv->a_type) {
case A_FLOAT:
pd_typedmess(dst->s_thing,&s_float,argc,argv);
return;
case A_SYMBOL:
//-- special handling for 'bang'
if (argv->a_w.w_symbol == &s_bang) {
pd_typedmess(dst->s_thing,&s_bang,0,0);
} else {
pd_typedmess(dst->s_thing,&s_symbol,argc,argv);
}
return;
case A_POINTER:
pd_typedmess(dst->s_thing,&s_pointer,argc,argv);
return;
// everything else (stop 'gcc -Wall' from complaining)
case A_NULL:
case A_SEMI:
case A_COMMA:
case A_DEFFLOAT:
case A_DOLLAR:
case A_DOLLSYM:
case A_GIMME:
case A_CANT:
default:
break;
// just fall though
}
}
#endif /* !defined(ALL_FORWARDMESS) */
// default -- sprinkler anything else with 'pd_forwardmess'
pd_forwardmess(dst->s_thing,argc,argv);
return;
}
//post("sprinkler: no destination for `%s'", dst ? dst->s_name : "(null)");
//-- pass through
outlet_anything(x->x_thru, dst, argc, argv);
}
static void sprinkler_list(t_sprinkler *x, MOO_UNUSED t_symbol *s, int argc, t_atom *argv)
{
#ifdef SPRINKLER_DEBUG
post("sprinkler_debug : sprinkler_list : argc=%d", argc);
#endif
sprinkler_anything(x,atom_getsymbol(argv), argc-1, argv+1);
}
/*--------------------------------------------------------------------
* newmethod, freemethod
*/
void *sprinkler_new(MOO_UNUSED t_symbol *s)
{
t_sprinkler *x = (t_sprinkler *)pd_new(sprinkler_class);
x->x_thru = outlet_new(&x->x_obj, &s_anything);
return (x);
}
void sprinkler_free(t_sprinkler *x) {
outlet_free(x->x_thru);
}
/*--------------------------------------------------------------------
* setup
*--------------------------------------------------------------------*/
void sprinkler_setup(void)
{
post(sprinkler_banner, PACKAGE_VERSION);
sprinkler_class = class_new(gensym("sprinkler"),
(t_newmethod)sprinkler_new,
(t_method)sprinkler_free,
sizeof(t_sprinkler),
0, 0);
#ifdef NON_MAX_FORWARD
//-- add aliases [forward] and [fw]
post("sprinkler : non-MAX [forward] alias enabled");
class_addcreator((t_newmethod)sprinkler_new, gensym("forward"), A_DEFSYM, 0);
class_addcreator((t_newmethod)sprinkler_new, gensym("fw"), A_DEFSYM, 0);
#endif
#ifdef ALL_FORWARDMESS
//-- report new semantics
post("sprinkler : will use pd_forwardmess() for all messages");
#endif
#ifdef SPRINKLER_DEBUG
post("sprinkler : debugging enabled");
#endif
//-- methods
class_addlist(sprinkler_class, sprinkler_list);
class_addanything(sprinkler_class, sprinkler_anything);
// help symbol
class_sethelpsymbol(sprinkler_class, gensym("sprinkler-help.pd"));
}
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