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tcc rename

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hdt3213
2022-04-10 16:29:49 +08:00
parent 37ef7d8a34
commit 374606f6f1
10 changed files with 247 additions and 58 deletions
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19
database/keys.go
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@@ -49,24 +49,6 @@ func execExists(db *DB, args [][]byte) redis.Reply {
return protocol.MakeIntReply(result)
}
// execExistIn returns existing key in given keys
// example: ExistIn key1 key2 key3..., returns [key1, key2]
// custom command for MSetNX tcc transaction
func execExistIn(db *DB, args [][]byte) redis.Reply {
var result [][]byte
for _, arg := range args {
key := string(arg)
_, exists := db.GetEntity(key)
if exists {
result = append(result, []byte(key))
}
}
if len(result) == 0 {
return protocol.MakeEmptyMultiBulkReply()
}
return protocol.MakeMultiBulkReply(result)
}
// execFlushDB removes all data in current db
func execFlushDB(db *DB, args [][]byte) redis.Reply {
db.Flush()
@@ -336,7 +318,6 @@ func init() {
RegisterCommand("PTTL", execPTTL, readFirstKey, nil, 2)
RegisterCommand("Persist", execPersist, writeFirstKey, undoExpire, 2)
RegisterCommand("Exists", execExists, readAllKeys, nil, -2)
RegisterCommand("ExistIn", execExistIn, readAllKeys, nil, -1)
RegisterCommand("Type", execType, readFirstKey, nil, 2)
RegisterCommand("Rename", execRename, prepareRename, undoRename, 3)
RegisterCommand("RenameNx", execRenameNx, prepareRename, undoRename, 3)