From d41e58e6cd71fdacdca69ba78c29d42dc7d330d5 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Wed, 20 Nov 2002 17:46:33 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r224, which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/maxlib/; revision=225 --- src/dist.c | 269 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 269 insertions(+) create mode 100644 src/dist.c (limited to 'src/dist.c') diff --git a/src/dist.c b/src/dist.c new file mode 100644 index 0000000..a150259 --- /dev/null +++ b/src/dist.c @@ -0,0 +1,269 @@ +/* -------------------------- dist ------------------------------------------ */ +/* */ +/* Distributes incoming data to a changeable list of receive objects. */ +/* Written by Olaf Matthes (olaf.matthes@gmx.de) */ +/* Get source at http://www.akustische-kunst.org/puredata/maxlib/ */ +/* */ +/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +/* */ +/* Based on PureData by Miller Puckette and others. */ +/* */ +/* ---------------------------------------------------------------------------- */ +/* + connect : store receive objects in list of receivers + disconnect : remove objects from list of receivers + clear: clear list of receivers + send : send anything to all receives named in the list of receivers */ + +#include "m_pd.h" + +#include +#include + +#define MAX_REC 64 /* maximum number of receive objects */ +#define MAX_ARG 32 /* maximum number of arguments to pass on */ + +static char *version = "dist v0.1, written by Olaf Matthes "; + +static t_class *dist_class; + +typedef struct _dist +{ + t_object x_obj; + t_symbol *x_sym[MAX_REC]; /* names of receiving objects */ + t_int x_rec; /* current number of receiving objects */ + t_int x_verbose; /* set to 0 to turn off detailed output in Pd window */ +} t_dist; + +static void dist_bang(t_dist *x) +{ + int i; + + for(i = 0; i <= x->x_rec; i++) + { + if (x->x_sym[i]->s_thing) pd_bang(x->x_sym[i]->s_thing); + } +} + +static void dist_float(t_dist *x, t_float f) +{ + int i; + + for(i = 0; i <= x->x_rec; i++) + { + if (x->x_sym[i]->s_thing) pd_float(x->x_sym[i]->s_thing, f); + } +} + +static void dist_symbol(t_dist *x, t_symbol *s) +{ + int i; + + for(i = 0; i <= x->x_rec; i++) + { + if (x->x_sym[i]->s_thing) pd_symbol(x->x_sym[i]->s_thing, s); + } +} + +static void dist_pointer(t_dist *x, t_gpointer *gp) +{ + int i; + + for(i = 0; i <= x->x_rec; i++) + { + if (x->x_sym[i]->s_thing) pd_pointer(x->x_sym[i]->s_thing, gp); + } +} + +static void dist_list(t_dist *x, t_symbol *s, int argc, t_atom *argv) +{ + int i; + + for(i = 0; i <= x->x_rec; i++) + { + if (x->x_sym[i]->s_thing) pd_list(x->x_sym[i]->s_thing, s, argc, argv); + } +} + +static void dist_anything(t_dist *x, t_symbol *s, int argc, t_atom *argv) +{ + int i; + + for(i = 0; i <= x->x_rec; i++) + { + if (x->x_sym[i]->s_thing) typedmess(x->x_sym[i]->s_thing, s, argc, argv); + } +} + + /* send 'anything' to receiver */ +static void dist_send(t_dist *x, t_symbol *s, int argc, t_atom *argv) +{ + int i; + t_atom av[MAX_ARG]; /* the 'new' t_atom without first element */ + t_int ac = argc - 1; /* the 'new' number of arguments */ + + if(ac > MAX_ARG) + { + post("dist: too many arguments!"); + return; + } + + for(i = 1; i < argc; i++) + { + av[i - 1] = argv[i]; /* just copy, don't care about types */ + } + /* send only argument-part to receivers */ + for(i = 0; i <= x->x_rec; i++) + { + if (x->x_sym[i]->s_thing) pd_forwardmess(x->x_sym[i]->s_thing, argc, argv); + } +} + +static void dist_connect(t_dist *x, t_symbol *s, int argc, t_atom *argv) +{ + int i, j; + int exist; + t_symbol *name; + /* just append every new receive-name to end of list */ + for(i = 0; i < argc; i++) + { + exist = 0; + if(x->x_rec == MAX_REC - 1) + { + post("dist: too many connections in use!"); + return; + } + name = atom_getsymbolarg(i, argc, argv); + for(j = 0; j <= x->x_rec; j++) + { + /* check if the name already exists */ + if(x->x_sym[j] == name) + { + post("dist: \"%s\" already exists in list of receivers", name->s_name); + exist = 1; /* indicate that it _does_ exist */ + } + } + /* add it in case it's a new one */ + if(!exist) + { + x->x_rec++; + x->x_sym[x->x_rec] = name; + if(x->x_verbose)post("dist: \"%s\" added to list of receivers", x->x_sym[x->x_rec]->s_name); + } + } +} + +static void dist_disconnect(t_dist *x, t_symbol *s, int argc, t_atom *argv) +{ + /* need to rearrange list in order to get rid of empty entries */ + int i, j, k; + int done; + t_symbol *name; + + for(i = 0; i < argc; i++) + { + name = atom_getsymbolarg(i, argc, argv); /* the one we're going to remove */ + done = 0; /* not yet removed */ + for(j = 0; j <= x->x_rec; j++) /* search for it... */ + { + if(x->x_sym[j] == name) + { + x->x_rec--; + if(x->x_verbose)post("dist: \"%s\" removed from list of receivers", x->x_sym[j]->s_name); + x->x_sym[j] = NULL; /* delete entry */ + /* rearrange list now: move entries to close the gap */ + for(k = j; k <= x->x_rec; k++) + { + x->x_sym[k] = x->x_sym[k + 1]; + } + done = 1; /* removed successfully */ + } + } + if(!done)post("dist: \"%s\" not in list of receivers, ignored", name->s_name); + } +} + +static void dist_clear(t_dist *x) +{ + int i; + + for(i = 0; i < MAX_REC; i++) + { + x->x_sym[i] = NULL; + } + x->x_rec = -1; +} + +static void dist_print(t_dist *x) +{ + int i; + + if(x->x_rec == 0) + { + post("dist: there is one object in receiver list:"); + } + else if(x->x_rec > 0) + { + post("dist: there are %d objects in receiver list:", x->x_rec + 1); + } + else + { + post("dist: there are no objects in receiver list"); + return; + } + + for(i = 0; i <= x->x_rec; i++) + { + post(" \"%s\"", x->x_sym[i]->s_name); + } +} + +static void *dist_new(t_symbol *s, int argc, t_atom *argv) +{ + int i; + + t_dist *x = (t_dist *)pd_new(dist_class); + + x->x_rec = -1; + x->x_verbose = 1; /* display info on connect/disconnect */ + for(i = 0; i < argc; i++) + { + x->x_sym[i] = atom_getsymbolarg(i, argc, argv); + x->x_rec++; + } +#ifndef MAXLIB + post(version); +#endif + return (x); +} + +void dist_setup(void) +{ + dist_class = class_new(gensym("dist"), (t_newmethod)dist_new, 0, + sizeof(t_dist), 0, A_GIMME, 0); + class_addcreator((t_newmethod)dist_new, gensym("d"), A_GIMME, 0); + class_addbang(dist_class, dist_bang); + class_addfloat(dist_class, dist_float); + class_addsymbol(dist_class, dist_symbol); + class_addpointer(dist_class, dist_pointer); + class_addlist(dist_class, dist_list); + class_addmethod(dist_class, (t_method)dist_connect, gensym("connect"), A_GIMME, 0); + class_addmethod(dist_class, (t_method)dist_disconnect, gensym("disconnect"), A_GIMME, 0); + class_addmethod(dist_class, (t_method)dist_clear, gensym("clear"), 0); + class_addmethod(dist_class, (t_method)dist_print, gensym("print"), 0); + class_addmethod(dist_class, (t_method)dist_send, gensym("send"), A_GIMME, 0); + class_addanything(dist_class, dist_anything); + class_sethelpsymbol(dist_class, gensym("maxlib/help-dist.pd")); +} -- cgit v1.2.1