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keys.go
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/
keys.go
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package redis
import (
"github.com/yusank/godis/datastruct"
"github.com/yusank/godis/protocol"
)
// global commands like `keys`, `exists`
//go:generate gen_redis_cmd "./keys.go"
func keys(c *Command) (*protocol.Response, error) {
if len(c.Values) < 1 {
return nil, ErrCommandArgsNotEnough
}
values := datastruct.Keys(c.Values[0])
return protocol.NewResponse(true).AppendBulkStrings(values...), nil
}
func exists(c *Command) (*protocol.Response, error) {
if len(c.Values) < 1 {
return nil, ErrCommandArgsNotEnough
}
found := datastruct.Exists(c.Values[0])
rsp := protocol.NewResponseWithInteger(0)
if found {
rsp = protocol.NewResponseWithInteger(1)
}
return rsp, nil
}
// del .
func del(c *Command) (*protocol.Response, error) {
if len(c.Values) < 1 {
return nil, ErrCommandArgsNotEnough
}
cnt := datastruct.Del(c.Values[0])
return protocol.NewResponseWithInteger(int64(cnt)), nil
}
// type
func keyType(c *Command) (*protocol.Response, error) {
if len(c.Values) < 1 {
return nil, ErrCommandArgsNotEnough
}
kt, ok := datastruct.Type(c.Values[0])
if !ok {
rsp := protocol.NewResponseWithSimpleString(RespNone)
return rsp, nil
}
rsp := protocol.NewResponseWithSimpleString(string(kt))
return rsp, nil
}
func ping(c *Command) (*protocol.Response, error) {
return protocol.NewResponseWithSimpleString(RespPong), nil
}
func command(c *Command) (*protocol.Response, error) {
return protocol.NewResponseWithSimpleString(RespCommand), nil
}