command

package
v0.1.0 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: May 31, 2024 License: Apache-2.0 Imports: 17 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	MaxRange = 2<<29 - 1 // 512M
)
View Source 
const (
	ModisVer = "0.1.0"
)

Variables

View Source 
var (
	GitSha1  string
	GitDirty string
	BuildID  string
)

Functions

func Append 

func Append(ctx *CmdContext) error

Append a value to a key

func Auth 

func Auth(ctx *CmdContext) error

Auth verifies the client

func BitCount 

func BitCount(ctx *CmdContext) error

BitCount counts the number of set bits (population counting) in a string.

func Call 

func Call(ctx *CmdContext)

Call a command

func ClientHelp 

func ClientHelp(ctx *CmdContext) error

func ClientInfo 

func ClientInfo(ctx *CmdContext) error

func ClientList 

func ClientList(ctx *CmdContext) error

func Decr 

func Decr(ctx *CmdContext) error

Decr decrements the integer value of a key by one

func DecrBy 

func DecrBy(ctx *CmdContext) error

DecrBy decrements the integer value of a key by the given number

func Delete 

func Delete(ctx *CmdContext) error

Delete removes the specified keys. A key is ignored if it does not exist

func Echo 

func Echo(ctx *CmdContext) error

Echo the given string

func Exists 

func Exists(ctx *CmdContext) error

Exists returns if key exists

func Expire 

func Expire(ctx *CmdContext) error

Expire sets a timeout on key

func ExpireAt 

func ExpireAt(ctx *CmdContext) error

ExpireAt sets an absolute timestamp to expire on key

func Get 

func Get(ctx *CmdContext) error

Get the value of key

func GetBit 

func GetBit(ctx *CmdContext) error

GetBit gets the bit at offset in the string value stored at key.

func GetRange 

func GetRange(ctx *CmdContext) error

GetRange increments the integer value of a keys by the given amount

func GetSet 

func GetSet(ctx *CmdContext) error

GetSet sets the string value of a key and return its old value

func HDel 

func HDel(ctx *CmdContext) error

HDel removes the specified fields from the hash stored at key

func HExists 

func HExists(ctx *CmdContext) error

HExists returns if field is an existing field in the hash stored at key

func HGet 

func HGet(ctx *CmdContext) error

HGet returns the value associated with field in the hash stored at key

func HGetAll 

func HGetAll(ctx *CmdContext) error

HGetAll returns all fields and values of the hash stored at key

func HIncrBy 

func HIncrBy(ctx *CmdContext) error

HIncrBy increments the number stored at field in the hash stored at key by increment

func HIncrByFloat 

func HIncrByFloat(ctx *CmdContext) error

HIncrByFloat increment the specified field of a hash stored at key, and representing a floating point number, by the specified increment

func HKeys 

func HKeys(ctx *CmdContext) error

HKeys returns all field names in the hash stored at key

func HLen 

func HLen(ctx *CmdContext) error

HLen returns the number of fields contained in the hash stored at key

func HMGet 

func HMGet(ctx *CmdContext) error

HMGet returns the values associated with the specified fields in the hash stored at key

func HSetNX 

func HSetNX(ctx *CmdContext) error

HSetNX sets field in the hash stored at key to value, only if field does not yet exist

func HVals 

func HVals(ctx *CmdContext) error

HVals returns all values in the hash stored at key

func HashCmdWithKey 

func HashCmdWithKey(ctx *CmdContext) error

compat server

func Incr 

func Incr(ctx *CmdContext) error

Incr increments the integer value of a key by one

func IncrBy 

func IncrBy(ctx *CmdContext) error

IncrBy increments the integer value of a key by the given amount

func IncrByFloat 

func IncrByFloat(ctx *CmdContext) error

IncrByFloat increments the float value of a key by the given amount

func Info 

func Info(ctx *CmdContext) error

Info print modis info

func ListCmd 

func ListCmd(ctx *CmdContext) error

func MGet 

func MGet(ctx *CmdContext) error

MGet returns the values of all specified key

func MSet 

func MSet(ctx *CmdContext) error

MSet sets the given keys to their respective values

func Monitor 

func Monitor(ctx *CmdContext) error

func PExpire 

func PExpire(ctx *CmdContext) error

PExpire works exactly like expire but the time to live of the key is specified in milliseconds instead of seconds

func PExpireAt 

func PExpireAt(ctx *CmdContext) error

PExpireAt has the same effect and semantic as expireAt, but the Unix time at which the key will expire is specified in milliseconds instead of seconds

func PSetEx 

func PSetEx(ctx *CmdContext) error

PSetEx sets the value and expiration in milliseconds of a key

func PTTL 

func PTTL(ctx *CmdContext) error

PTTL likes TTL this command returns the remaining time to live of a key that has an expire set, with the sole difference that TTL returns the amount of remaining time in seconds while PTTL returns it in milliseconds

func Persist 

func Persist(ctx *CmdContext) error

Persist removes the existing timeout on key, turning the key from volatile to persistent

func Ping 

func Ping(ctx *CmdContext) error

Ping the server

func Quit 

func Quit(ctx *CmdContext) error

Quit asks the server to close the connection

func SAdd 

func SAdd(ctx *CmdContext) error

SAdd adds the specified members to the set stored at key

func SCard 

func SCard(ctx *CmdContext) error

SCard returns the set cardinality (number of elements) of the set stored at key

func SDiff 

func SDiff(ctx *CmdContext) error

SDiff returns the members of the set resulting from the difference between the first set and all the successive sets.

func SDiffServer 

func SDiffServer(ctx *CmdContext) error

SDiff returns the members of the set resulting from the difference between the first set and all the successive sets.

func SDiffStore 

func SDiffStore(ctx *CmdContext) error

SDiffStore stores the difference set between the given sets in the specified set.

func SInter 

func SInter(ctx *CmdContext) error

SInter returns the members of the set resulting from the intersection of all the given sets.

func SInterStore 

func SInterStore(ctx *CmdContext) error

SInterStore stores the members of the set resulting from the intersection of all the given sets.

func SIsmember 

func SIsmember(ctx *CmdContext) error

SIsmember returns if member is a member of the set stored at key

func SMembers 

func SMembers(ctx *CmdContext) error

SMembers returns all the members of the set value stored at key

func SMove 

func SMove(ctx *CmdContext) error

SMove movies member from the set at source to the set at destination

func SPop 

func SPop(ctx *CmdContext) error

SPop removes and returns one or more random elements from the set value storage at key

func SRandMember 

func SRandMember(ctx *CmdContext) error

SRandMember returns random members of the set

func SRem 

func SRem(ctx *CmdContext) error

SRem removes the specified members from the set stored at key

func SUnion 

func SUnion(ctx *CmdContext) error

SUnion returns the members of the set resulting from the union of all the given sets.

func SUnionStore 

func SUnionStore(ctx *CmdContext) error

SUnionStore stores the members of the set resulting from the union of all the given sets.

func Select 

func Select(ctx *CmdContext) error

Select the logical database

func Set 

func Set(ctx *CmdContext) error

Set key to hold the string value

func SetBit 

func SetBit(ctx *CmdContext) error

SetBit sets or clears the bit at offset in the string value stored at key.

func SetEx 

func SetEx(ctx *CmdContext) error

SetEx sets the value and expiration of a key KEY_NAME TIMEOUT VALUE

func SetNx 

func SetNx(ctx *CmdContext) error

SetNx sets the value of a key ,only if the key does not exist

func SetRange 

func SetRange(ctx *CmdContext) error

SetRange overwrites part of the string stored at key, starting at the specified offset, for the entire length of value.

func Strlen 

func Strlen(ctx *CmdContext) error

Strlen returns the length of the string value stored at key

func SwapDB 

func SwapDB(ctx *CmdContext) error

SwapDB swaps two modis databases

func TTL 

func TTL(ctx *CmdContext) error

TTL returns the remaining time to live of a key that has a timeout

func TempNotSupport 

func TempNotSupport(ctx *CmdContext) error

func Type 

func Type(ctx *CmdContext) error

Type returns the string representation of the type of the value stored at key

func ZIncrBy 

func ZIncrBy(ctx *CmdContext) error

func ZSetCmdWithKey 

func ZSetCmdWithKey(ctx *CmdContext) error

func ZSetCmdWithKeyMember 

func ZSetCmdWithKeyMember(ctx *CmdContext) error

Types

type CmdContext 

type CmdContext struct {
	Name       string   // command name，e.g. "client"
	FullName   string   // command name，e.g. "client|info"
	Args       [][]byte // command's args，e.g. ["key", "value"]
	OutContent string   // command's output
	TraceID    string
	// request without decoding, e.g. *2\r\n$3\r\nGET\r\n$3\r\nkey\r\n
	PlainReq []byte
	CodecCtx *conncontext.CodecContext
	ServCtx  *conncontext.ServerContext
	context.Context
}

CmdContext is the runtime context of a command

func NewCmdContext 

func NewCmdContext(name string, args [][]byte, traceID string, plainReq []byte,
	codecCtx *conncontext.CodecContext, servCtx *conncontext.ServerContext) *CmdContext

NewCmdContext create a new command context

type CmdFlag 

type CmdFlag int
const (
	CmdNone  CmdFlag = 0
	CmdAdmin CmdFlag = 1 << iota
	CmdSkipMonitor
)

type CmdInfo 

type CmdInfo struct {
	Cmd Command
	// number of arguments, it is possible to use -N to say >= N
	Arity int
	Flag  CmdFlag
	Stats CmdStats
}

CmdInfo describes a command with constraints

type CmdStats 

type CmdStats struct {
	Calls    int64
	MicroSec int64
}

CmdStat describes command statistics

func (*CmdStats) GetUsecPerCall 

func (cs *CmdStats) GetUsecPerCall() float64

type Command 

type Command func(ctx *CmdContext) error

Command is a modis command implementation

type DBInfo 

type DBInfo struct {
	Keys    int64
	Expires int64
}

Source Files

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