# To be removed...# functionality has been moved to appl/cmd/memfs.b# some progs still refer to lib/memfs so it remains for the time being implement MemFS; include "sys.m";	sys: Sys;include "draw.m";include "memfs.m"; Cmd: module {	PATH: con "/dis/memfs.dis";	init: fn(ctxt: ref Draw->Context, argv: list of string);}; cmd: Cmd; init(): string{	sys = load Sys Sys->PATH;	cmd = load Cmd Cmd->PATH;	if (cmd == nil)		return sys->sprint("lib/memfs cannot load %s: %r\n", Cmd->PATH);	return nil;} newfs(maxsz: int): ref Sys->FD{	p := array [2] of ref Sys->FD;	if (sys->pipe(p) == -1)		return nil;	sync := chan of int;	spawn run(p[1].fd, maxsz, sync);	<- sync;	return p[0];} run(fd: int, sz: int, sync: chan of int){	sys->pctl(Sys->FORKFD, nil);	sys->dup(fd, 0);	sys->pctl(Sys->NEWFD, 0::1::2::nil);	sync <-= 1;	cmd->init(nil, Cmd->PATH :: "-s" :: "-m" :: string sz :: nil);}