func cache(t zx.Tree, fn func()) (zx.Tree, func(), error) {
cfs.Debug = zdebug
cfs.Cdebug = zdebug
xfs, err := cfs.New("", t, rflag)
if err != nil {
return nil, nil, fmt.Errorf("cfs: %s", err)
}
st := &zx.IOstats{}
xfs.IOstats = st
if xaddr != "" {
serve(xfs, xaddr)
}
if sflag {
xfn := func() {
st.Averages()
dbg.Warn("%s iostats:\n%s\n", xfs.Name(), st)
if fn != nil {
fn()
}
}
return xfs, xfn, nil
}
return xfs, fn, nil
}
func main() {
defer dbg.Exits("")
os.Args[0] = "zx"
port = "8002"
opts.NewFlag("p", "port: tcp server port", &port)
wport = "9002"
opts.NewFlag("w", "port: wax http server port", &wport)
svc = "zx"
opts.NewFlag("s", "srv: service name", &svc)
addr = "*!*!zx"
opts.NewFlag("a", "addr: service address", &addr)
opts.NewFlag("D", "debug", &Debug)
opts.NewFlag("Z", "verbose debug", &Zdebug)
opts.NewFlag("k", "make cfg entries persist in the ns", &Persist)
opts.NewFlag("N", "use new cfs", &New)
args, err := opts.Parse(os.Args)
if err != nil {
usage(err)
}
if len(args) == 0 {
usage(nil)
}
Debug = Debug || Zdebug
auth.Debug = Debug
ncfs.Debug = Debug
cfs.Debug = Debug
cfs.Cdebug = Zdebug
cfs.Zdebug = Zdebug
rfs.Verb = Verbose
var trs []zx.Tree
var ros = map[bool]string{false: "rw", true: "ro"}
for i := 0; i < len(args); i++ {
al := strings.Split(args[i], "!")
if len(al) == 1 {
al = append(al, al[0])
al[0] = path.Base(al[0])
}
ronly := false
caching := true
if len(al) == 3 && strings.Contains(al[2], "ro") {
ronly = true
}
if len(al) == 3 && strings.Contains(al[2], "nc") {
caching = false
}
t, err := lfs.New(al[0], al[1], ronly && !caching)
if err != nil {
dbg.Warn("%s: %s", al[0], err)
continue
}
t.ReadAttrs(true)
t.SaveAttrs(caching)
t.IOstats = &zx.IOstats{}
fp, _ := filepath.Abs(al[1])
if New && caching {
dbg.Warn("%s mfs + lfs %s caching", al[0], ros[ronly])
cache, err := mfs.New("mfs:" + al[0])
if err != nil {
dbg.Warn("%s: mfs: %s", al[0], err)
continue
}
cache.IOstats = &zx.IOstats{}
cache.Dbg = Zdebug
x, err := ncfs.New("cfs", cache, t, ronly)
if err != nil {
dbg.Warn("%s: cfs: %s", al[0], err)
continue
}
x.IOstats = &zx.IOstats{}
zxw[al[0]] = fp
trs = append(trs, x)
} else if !New && caching {
dbg.Warn("%s old cfs + lfs %s caching", al[0], ros[ronly])
x, err := cfs.New("", t, ronly)
if err != nil {
dbg.Warn("%s: cfs: %s", al[0], err)
continue
}
x.IOstats = &zx.IOstats{}
zxw[al[0]] = fp
trs = append(trs, x)
} else {
dbg.Warn("%s lfs %s uncached", al[0], ros[ronly])
zxw[al[0]] = fp
t.Dbg = Debug
trs = append(trs, t)
}
}
if len(trs) == 0 {
dbg.Fatal("no trees to serve")
}
ds.DefSvc(svc, port)
Vprintf("%s: serve %s...\n", os.Args[0], addr)
cc, _, err := ds.Serve(os.Args[0], addr)
if err != nil {
dbg.Fatal("%s: serve: %s", os.Args[0], err)
}
go zxwax()
for c := range cc {
go func(c nchan.Conn) {
ai, err := auth.AtServer(c, "", "zx", "finder")
if err != nil && err != auth.ErrDisabled {
Vprintf("%s: auth %s: %s\n", os.Args[0], c.Tag, err)
close(c.In, err)
close(c.Out, err)
return
}
srv := rfs.Serve("rfs:"+c.Tag, c, ai, rfs.RW, trs...)
if false {
srv.Debug = Debug
}
}(*c)
}
if err := cerror(cc); err != nil {
dbg.Fatal("%s: serve: %s", os.Args[0], err)
}
}