#include <u.h>#include <libc.h>#include <stdio.h>#include <fcall.h>#include <thread.h>#include <9p.h> #include "dat.h"#include "fns.h" void usage(void){	fprint(2, "Usage: dchan [-D] [-d] [-s srvname] [-m mptp]\n");	threadexits("usage");} Srv fs = {	.attach		= fsattach,	.open		= fsopen,	.clunk		= fsclunk,	.read 		= fsread,	.write 		= fswrite,	.create		= fscreate,	.stat 		= fsstat,	.wstat		= fswstat,	.end 		= fsfinish,	.flush 		= fsflush,	.remove		= fsremove,}; voidthreadmain(int argc, char *argv[]){	char *addr = nil;	char *srvname = nil;	char *mptp = nil; 	Qid q; 	fs.tree = alloctree(nil, nil, DMDIR|0777, fsdestroyfile);	q = fs.tree->root->qid; 	createctl(&fs); 	ARGBEGIN {	case 'd':		debug++;		break;	case 'D':		chatty9p++;		break;	case 'a':		addr = EARGF(usage());		break;	case 's':		srvname = EARGF(usage());		break;	case 'm':		mptp = EARGF(usage());		break;	default:		usage();	} ARGEND		if(argc)		usage(); 	if(chatty9p) {		fprint(2, "fs.nopipe %d srvname %s mptp %s\n", fs.nopipe, srvname, mptp);	} 	threadsetname("threadmain"); 	if(addr == nil && srvname == nil && mptp == nil) {		sysfatal("must specify -a, -s, or -m option");	} 	if(addr) {		threadlistensrv(&fs, addr);	} 	if(srvname || mptp) {		threadpostmountsrv(&fs, srvname, mptp, MREPL|MCREATE);	} 	threadexits(0);}