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/******************************************************
*
* zexy - implementation file
*
* copyleft (c) IOhannes m zmölnig
*
* 1999:forum::für::umläute:2009
*
* institute of electronic music and acoustics (iem)
*
******************************************************
*
* license: GNU General Public License v.2
*
******************************************************/
/*
*/
#include "zexy.h"
/* -------------------------- multireceive ------------------------------ */
static t_class *multireceive_class=NULL;
static t_class *multireceive_proxy_class=NULL;
typedef struct _symlist
{
t_symbol*s;
struct _symlist*next;
} t_symlist;
typedef struct _multireceive_proxy
{
t_object x_obj;
struct _multireceive*x_parent;
} t_multireceive_proxy;
typedef struct _multireceive
{
t_object x_obj;
t_multireceive_proxy*x_proxy;
t_symlist*x_symlist;
t_outlet *x_out;
} t_multireceive;
static void multireceive_any(t_multireceive_proxy *x, t_symbol*s, int argc, t_atom*argv)
{
outlet_anything(x->x_parent->x_out, s, argc, argv);
}
static void multireceive_add(t_multireceive *x, t_symbol*s) {
t_symlist*sl=x->x_symlist;
t_symlist*element=NULL;
if(sl) {
while(sl->next) {
if(s==sl->s) {
// already bound to this symbol
return;
}
sl=sl->next;
}
}
element=(t_symlist*)getbytes(sizeof(t_symlist));
element->s=s;
element->next=NULL;
pd_bind(&x->x_proxy->x_obj.ob_pd, s);
if(sl) {
sl->next=element;
} else {
x->x_symlist=element;
}
}
static void multireceive_clear(t_multireceive *x) {
t_symlist*sl=x->x_symlist;
t_symlist*current=NULL;
while(sl) {
current=sl;
sl=sl->next;
pd_unbind(&x->x_proxy->x_obj.ob_pd, current->s);
current->s=NULL;
current->next=NULL;
freebytes(current, sizeof(t_symlist));
}
x->x_symlist=NULL;
}
static void multireceive_set(t_multireceive *x, t_symbol*s, int argc, t_atom*argv)
{
multireceive_clear(x);
while(argc-->0) {
t_symbol*s=atom_getsymbol(argv);
if(A_SYMBOL==argv->a_type) {
multireceive_add(x, s);
} else {
verbose(1, "[multireceive]: ignoring non-symbol receive name");
}
argv++;
}
}
static void multireceive_free(t_multireceive *x)
{
multireceive_clear(x);
pd_free((t_pd *)x->x_proxy);
outlet_free(x->x_out);
x->x_out=NULL;
}
static void *multireceive_new(t_symbol *s, int argc, t_atom *argv)
{
t_multireceive *x = (t_multireceive *)pd_new(multireceive_class);
x->x_proxy=(t_multireceive_proxy*)pd_new(multireceive_proxy_class);
x->x_proxy->x_parent=x;
x->x_symlist=NULL;
x->x_out = outlet_new(&x->x_obj, 0);
multireceive_set(x, 0, argc, argv);
return (x);
}
void multireceive_setup(void)
{
multireceive_class = class_new(gensym("multireceive"),
(t_newmethod)multireceive_new,
(t_method)multireceive_free,
sizeof(t_multireceive),
0,
A_GIMME, 0);
class_addmethod(multireceive_class,
(t_method)multireceive_set,
gensym("set"),
A_GIMME, 0);
class_addmethod(multireceive_class,
(t_method)multireceive_add,
gensym("add"),
A_SYMBOL, 0);
multireceive_proxy_class = class_new(gensym("multireceive proxy"),
0, 0,
sizeof(t_multireceive_proxy),
CLASS_PD | CLASS_NOINLET, 0);
class_addanything(multireceive_proxy_class, multireceive_any);
zexy_register("multireceive");
}
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