func (c *conn) serve() {
defer c.cancelAll()
for {
t, err := c.readBuf()
if err != nil {
if err != os.EOF {
log.Println(err)
}
return
}
verb := pb.GetInt32((*int32)(t.Verb))
f, ok := ops[verb]
if !ok {
var r R
r.ErrCode = proto.NewResponse_Err(proto.Response_UNKNOWN_VERB)
c.respond(t, Valid|Done, nil, &r)
continue
}
tag := pb.GetInt32((*int32)(t.Tag))
tx := newTxn()
c.tl.Lock()
c.tx[tag] = tx
c.tl.Unlock()
f(c, t, tx)
}
}
func (c *conn) redirect(t *T) {
cals := c.s.cals()
if len(cals) < 1 {
c.respond(t, Valid|Done, nil, readonly)
return
}
cal := cals[rand.Intn(len(cals))]
parts, rev := c.s.St.Get("/ctl/node/" + cal + "/addr")
if rev == store.Dir && rev == store.Missing {
c.respond(t, Valid|Done, nil, readonly)
return
}
r := &R{
ErrCode: proto.NewResponse_Err(proto.Response_REDIRECT),
ErrDetail: &parts[0],
}
c.respond(t, Valid|Done, nil, r)
}
func errResponse(e os.Error) *R {
return &R{
ErrCode: proto.NewResponse_Err(proto.Response_OTHER),
ErrDetail: pb.String(e.String()),
}
}
"log"
"math"
"net"
"os"
"rand"
"sync"
)
const packetSize = 3000
var (
ErrPoisoned = os.NewError("poisoned")
)
var (
badPath = proto.NewResponse_Err(proto.Response_BAD_PATH)
missingArg = &R{ErrCode: proto.NewResponse_Err(proto.Response_MISSING_ARG)}
tagInUse = &R{ErrCode: proto.NewResponse_Err(proto.Response_TAG_IN_USE)}
isDir = &R{ErrCode: proto.NewResponse_Err(proto.Response_ISDIR)}
notDir = &R{ErrCode: proto.NewResponse_Err(proto.Response_NOTDIR)}
noEnt = &R{ErrCode: proto.NewResponse_Err(proto.Response_NOENT)}
tooLate = &R{ErrCode: proto.NewResponse_Err(proto.Response_TOO_LATE)}
revMismatch = &R{ErrCode: proto.NewResponse_Err(proto.Response_REV_MISMATCH)}
readonly = &R{
ErrCode: proto.NewResponse_Err(proto.Response_OTHER),
ErrDetail: pb.String("no known writeable addresses"),
}
badTag = &R{
ErrCode: proto.NewResponse_Err(proto.Response_OTHER),
ErrDetail: pb.String("unknown tag"),
}