proto

const (
	CtrlErrCode  = 0x1 // Response Error Code
	CtrlCas      = 0x2 // Compare And Switch
	CtrlColSpace = 0x4
	CtrlValue    = 0x8
	CtrlScore    = 0x10
)

const (
	ColSpaceDefault = 0 // Default column space
	ColSpaceScore1  = 1 // rowKey+score+colKey => value
	ColSpaceScore2  = 2 // rowKey+colKey => value+score
)

const (
	// Common flags
	FlagZop = 0x1 // if set, it is a "Z" op

	// (Z)Scan flags
	FlagScanAsc      = 0x4  // if set, Scan in ASC order, else DESC order
	FlagScanKeyStart = 0x8  // if set, Scan start from MIN/MAX key
	FlagScanEnd      = 0x10 // if set, Scan finished, stop now

	// Dump flags
	FlagDumpTable     = 0x4  // if set, Dump only one table, else Dump current DB(dbId)
	FlagDumpUnitStart = 0x8  // if set, Dump start from new UnitId, else from pivot record
	FlagDumpEnd       = 0x10 // if set, Dump finished, stop now
)

const (
	// Front CTRL
	CmdAuth = 0x9

	// Front Read
	CmdPing = 0x10
	CmdGet  = 0x11
	CmdMGet = 0x12
	CmdScan = 0x13
	CmdDump = 0x14

	// Front Write
	CmdSet   = 0x60
	CmdMSet  = 0x61
	CmdDel   = 0x62
	CmdMDel  = 0x63
	CmdIncr  = 0x64
	CmdMIncr = 0x65

	// Inner SYNC
	CmdSync   = 0xB0 // Sync data
	CmdSyncSt = 0xB1 // Sync status

	// Inner CTRL
	CmdSlaveOf = 0xD0
	CmdMigrate = 0xD1 // Start/Stop migration
	CmdSlaveSt = 0xD2 // Get migration/slave status
	CmdDelUnit = 0xD3 // Delete unit data
)

const (
	AdminDbId   = 255
	HeadSize    = 14
	MaxUint8    = 255
	MaxUint16   = 65535
	MaxValueLen = 1024 * 1024     // 1MB
	MaxPkgLen   = 1024 * 1024 * 2 // 2MB
)