// RemoveFromList
// function:
// - remove key and list value from storage
func (ss *Storageserver) RemoveFromList(args *storageproto.PutArgs, reply *storageproto.PutReply) error {
req := &cacheReq{REMOVE_LIST_VALUE, args.Key, args.Value}
replyc := make(chan interface{})
ss.cacheReqC <- Request{req, replyc}
status := (<-replyc).(bool)
if status {
lsplog.Vlogf(5, "Remove key successfully %s %s", args.Key, args.Value)
reply.Status = storageproto.OK
} else {
lsplog.Vlogf(5, "Remove key failed %s %s", args.Key, args.Value)
reply.Status = storageproto.EITEMNOTFOUND
}
return nil
}
// AppendToList
// function:
// - put key and list value into storage
func (ss *Storageserver) AppendToList(args *storageproto.PutArgs, reply *storageproto.PutReply) error {
req := &cacheReq{APPEND_LIST_VALUE, args.Key, args.Value}
replyc := make(chan interface{})
ss.cacheReqC <- Request{req, replyc}
status := (<-replyc).(bool)
if status {
lsplog.Vlogf(5, "Append key successfully %s %s", args.Key, args.Value)
reply.Status = storageproto.OK
} else {
lsplog.Vlogf(5, "Append key failed %s %s", args.Key, args.Value)
reply.Status = storageproto.EITEMEXISTS
}
return nil
}
// Put
// function:
// - put key value into storage
func (ss *Storageserver) Put(args *storageproto.PutArgs, reply *storageproto.PutReply) error {
req := &cacheReq{PUT_VALUE, args.Key, args.Value}
replyc := make(chan interface{})
ss.cacheReqC <- Request{req, replyc}
<-replyc
lsplog.Vlogf(5, "Put key successfully %s %s", args.Key, args.Value)
reply.Status = storageproto.OK
return nil
}
func (pc *ProxyCounter) RemoveFromList(args *storageproto.PutArgs, reply *storageproto.PutReply) error {
if pc.override {
reply.Status = pc.overrideStatus
return pc.overrideErr
}
byteCount := len(args.Key) + len(args.Value)
err := pc.srv.Call("StorageRPC.RemoveFromList", args, reply)
atomic.AddUint32(&pc.rpcCount, 1)
atomic.AddUint32(&pc.byteCount, uint32(byteCount))
return err
}