#include <ctype.h>#include <lib9.h>#include <draw.h>#include <cursor.h>#include "dat.h"#include "fns.h" int nwindow = 0; Window*newwin(void){	static int id = 0;	Window *w; 	if(!(w = mallocz(sizeof(Window), 1)))		return nil;	if(!(window = realloc(window, ++nwindow*sizeof(Window*))))		return nil;	window[nwindow-1] = w; 	w->id = ++id;	return w;} Window*winlookup(int id){	int i;	Window *w; 	for(i=0; i<nwindow; i++){		w = window[i];		if(w && w->id == id)			return w;	}	return nil;} staticvoiderrorreqs(Reqbuf *r){	while(r->ri != r->wi)		readreply(nextreq(r), nil);} voiddeletewin(Window *w){	int i; 	if(w->pid > 0 && killreply(w))		return;	fsdelete(w);	drawdettach(w);	xdeletewin(w);	w->deleted++;	errorreqs(&w->kbdreqs);	errorreqs(&w->mousereqs);	for(i = 0; i < nwindow; i++){		if(window[i] == w)			break;	}	if(i == nwindow)		return;	--nwindow;	memmove(window+i, window+i+1, (nwindow-i)*sizeof(Window*));} voidsetlabel(Window *w, char *label){	if(w->label)		free(w->label);	w->label = label;	xupdatelabel(w);}