diff options
Diffstat (limited to 'shared/toxy/scriptlet.c')
| -rw-r--r-- | shared/toxy/scriptlet.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/shared/toxy/scriptlet.c b/shared/toxy/scriptlet.c index 954c596..f7ce800 100644 --- a/shared/toxy/scriptlet.c +++ b/shared/toxy/scriptlet.c @@ -422,16 +422,26 @@ void scriptlet_qpush(t_scriptlet *sp) { char buf[MAXPDSTRING]; char *tail = sp->s_tail; + /* Could not find any other way, than to postpone processing of the + query, after everything which might have been glued to our tail, + is evaluated. Otherwise, any command arriving later, during + blocking of the query (e.g. in a Tk dialog), would be evaluated + prior to our tail, via Tcl_DoOneEvent(). We postpone also the + setup step (defining the query proc), in order to be able to + handle several queries at once. All this is far from ideal -- + the sequence "query this, tot that", is swapped, unless written + as "query this, tot after 0 .(that.)", which is going to cause + much confusion... LATER revisit. Do not forget, that since + pd_readsocket() is not reentrant, sys_gui()d commands should never + enter event loop directly by blocking on a dialog, vwait, etc., + because the pd_readsocket handler is event-driven on unix. */ + sys_gui("after 0 {\n"); strcpy(tail, "]}}\n"); sys_gui(sp->s_buffer); *tail = 0; - /* Could not find anything more flexible, than blocking while waiting - for ::toxy::query to complete. The model case is a Tk dialog - hanging over the arrival of new queries. LATER probably use - a thread-safe replacement of the 'pd' command in order to prevent - competing tcl threads from corrupting the gui-to-pd stream. */ - sprintf(buf, "after 0 {::toxy::query}\nvwait ::toxy::reply\n\ - pd [concat %s _rp $::toxy::reply \\;]\n", sp->s_rptarget->s_name); + sprintf(buf, "\ + trace add variable ::toxy::reply write \"::toxy::doreply %s\"\n\ + ::toxy::query}\n", sp->s_rptarget->s_name); sys_gui(buf); } } @@ -761,6 +771,10 @@ t_scriptlet *scriptlet_new(t_pd *owner, t_symbol *rptarget, t_symbol *cbtarget, if (!configured) { sys_gui("image create bitmap ::toxy::img::empty -data {}\n"); + sys_gui("proc ::toxy::doreply {target vname vndx op} {\n"); + sys_gui(" pd [concat $target _rp $::toxy::reply \\;]\n"); + sys_gui(" unset ::toxy::reply\n"); + sys_gui("}\n"); } sp->s_owner = owner; sp->s_glist = gl; |