update mod

vendor/github.com/siddontang/ledisdb/ledis/const.go

@@ -0,0 +1,150 @@
+package ledis
+
+import (
+	"errors"
+)
+
+// Version is for version
+const Version = "0.5"
+
+// DataType is defined for the different types
+type DataType byte
+
+// for out use
+const (
+	KV DataType = iota
+	LIST
+	HASH
+	SET
+	ZSET
+)
+
+func (d DataType) String() string {
+	switch d {
+	case KV:
+		return KVName
+	case LIST:
+		return ListName
+	case HASH:
+		return HashName
+	case SET:
+		return SetName
+	case ZSET:
+		return ZSetName
+	default:
+		return "unknown"
+	}
+}
+
+// For different type name
+const (
+	KVName   = "KV"
+	ListName = "LIST"
+	HashName = "HASH"
+	SetName  = "SET"
+	ZSetName = "ZSET"
+)
+
+// for backend store
+const (
+	NoneType   byte = 0
+	KVType     byte = 1
+	HashType   byte = 2
+	HSizeType  byte = 3
+	ListType   byte = 4
+	LMetaType  byte = 5
+	ZSetType   byte = 6
+	ZSizeType  byte = 7
+	ZScoreType byte = 8
+	// BitType     byte = 9
+	// BitMetaType byte = 10
+	SetType   byte = 11
+	SSizeType byte = 12
+
+	maxDataType byte = 100
+
+	/*
+		I make a big mistake about TTL time key format and have to use a new one (change 101 to 103).
+		You must run the ledis-upgrade-ttl to upgrade db.
+	*/
+	ObsoleteExpTimeType byte = 101
+	ExpMetaType         byte = 102
+	ExpTimeType         byte = 103
+
+	MetaType byte = 201
+)
+
+// TypeName is the map of type -> name
+var TypeName = map[byte]string{
+	KVType:     "kv",
+	HashType:   "hash",
+	HSizeType:  "hsize",
+	ListType:   "list",
+	LMetaType:  "lmeta",
+	ZSetType:   "zset",
+	ZSizeType:  "zsize",
+	ZScoreType: "zscore",
+	// BitType:     "bit",
+	// BitMetaType: "bitmeta",
+	SetType:     "set",
+	SSizeType:   "ssize",
+	ExpTimeType: "exptime",
+	ExpMetaType: "expmeta",
+}
+
+const (
+	defaultScanCount int = 10
+)
+
+var (
+	errKeySize        = errors.New("invalid key size")
+	errValueSize      = errors.New("invalid value size")
+	errHashFieldSize  = errors.New("invalid hash field size")
+	errSetMemberSize  = errors.New("invalid set member size")
+	errZSetMemberSize = errors.New("invalid zset member size")
+	errExpireValue    = errors.New("invalid expire value")
+	errListIndex      = errors.New("invalid list index")
+)
+
+// For different const size configuration
+const (
+	// max allowed databases
+	MaxDatabases int = 10240
+
+	// max key size
+	MaxKeySize int = 1024
+
+	// max hash field size
+	MaxHashFieldSize int = 1024
+
+	// max zset member size
+	MaxZSetMemberSize int = 1024
+
+	// max set member size
+	MaxSetMemberSize int = 1024
+
+	// max value size
+	MaxValueSize int = 1024 * 1024 * 1024
+)
+
+// For different common errors
+var (
+	ErrScoreMiss     = errors.New("zset score miss")
+	ErrWriteInROnly  = errors.New("write not support in readonly mode")
+	ErrRplInRDWR     = errors.New("replication not support in read write mode")
+	ErrRplNotSupport = errors.New("replication not support")
+)
+
+// const (
+// 	DBAutoCommit    uint8 = 0x0
+// 	DBInTransaction uint8 = 0x1
+// 	DBInMulti       uint8 = 0x2
+// )
+
+// For bit operation
+const (
+	BitAND = "and"
+	BitOR  = "or"
+	BitXOR = "xor"
+	BitNot = "not"
+)