func (srv *Server) deleteSlot(req *Request) {
var cliType uint32 = ClientTypeNormal
if req.Cli != nil {
cliType = req.Cli.ClientType()
}
switch cliType {
case ClientTypeNormal:
var p ctrl.PkgDelSlot
var err = ctrl.Decode(req.Pkg, nil, &p)
p.ErrMsg = ""
if err != nil {
p.ErrMsg = fmt.Sprintf("decode failed %s", err)
} else {
err = srv.deleteMigrationSlot(p.SlotId, srv.mc.GetMaster())
if err != nil {
p.ErrMsg = fmt.Sprintf("delete slot failed %s", err)
}
}
pkg, err := ctrl.Encode(req.Cmd, req.DbId, req.Seq, &p)
if err == nil {
srv.sendResp(false, req, pkg)
}
case ClientTypeSlave:
fallthrough
case ClientTypeMaster:
log.Println("Invalid client type %d for DelSlot command, close now!",
cliType)
req.Cli.Close()
}
}
// Internal control command.
// DelSlot deletes one slot data.
func (c *CtrlContext) DelSlot(slotId uint16) error {
call := c.cli.newCall(proto.CmdDelSlot, nil)
if call.err != nil {
return call.err
}
var p ctrl.PkgDelSlot
p.SlotId = slotId
pkg, err := ctrl.Encode(call.cmd, c.dbId, call.seq, &p)
if err != nil {
c.cli.errCall(call, err)
return call.err
}
call.pkg = pkg
c.cli.sending <- call
r, err := (<-call.Done).Reply()
if err != nil {
return call.err
}
t := r.(*ctrl.PkgDelSlot)
if t.ErrMsg != "" {
return errors.New(t.ErrMsg)
}
return nil
}