You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
1.2 KiB
Go
69 lines
1.2 KiB
Go
2 years ago
|
package client
|
||
|
|
|
||
|
|
import (
|
||
|
|
"github.com/starainrt/go-mysql/utils"
|
||
|
|
)
|
||
|
|
|
||
|
|
func (c *Conn) writeCommand(command byte) error {
|
||
|
|
c.ResetSequence()
|
||
|
|
|
||
|
|
return c.WritePacket([]byte{
|
||
|
|
0x01, //1 bytes long
|
||
|
|
0x00,
|
||
|
|
0x00,
|
||
|
|
0x00, //sequence
|
||
|
|
command,
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *Conn) writeCommandBuf(command byte, arg []byte) error {
|
||
|
|
c.ResetSequence()
|
||
|
|
|
||
|
|
length := len(arg) + 1
|
||
|
|
data := utils.ByteSliceGet(length + 4)
|
||
|
|
data.B[4] = command
|
||
|
|
|
||
|
|
copy(data.B[5:], arg)
|
||
|
|
|
||
|
|
err := c.WritePacket(data.B)
|
||
|
|
|
||
|
|
utils.ByteSlicePut(data)
|
||
|
|
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *Conn) writeCommandStr(command byte, arg string) error {
|
||
|
|
return c.writeCommandBuf(command, utils.StringToByteSlice(arg))
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *Conn) writeCommandUint32(command byte, arg uint32) error {
|
||
|
|
c.ResetSequence()
|
||
|
|
|
||
|
|
return c.WritePacket([]byte{
|
||
|
|
0x05, //5 bytes long
|
||
|
|
0x00,
|
||
|
|
0x00,
|
||
|
|
0x00, //sequence
|
||
|
|
|
||
|
|
command,
|
||
|
|
|
||
|
|
byte(arg),
|
||
|
|
byte(arg >> 8),
|
||
|
|
byte(arg >> 16),
|
||
|
|
byte(arg >> 24),
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
func (c *Conn) writeCommandStrStr(command byte, arg1 string, arg2 string) error {
|
||
|
|
c.ResetSequence()
|
||
|
|
|
||
|
|
data := make([]byte, 4, 6+len(arg1)+len(arg2))
|
||
|
|
|
||
|
|
data = append(data, command)
|
||
|
|
data = append(data, arg1...)
|
||
|
|
data = append(data, 0)
|
||
|
|
data = append(data, arg2...)
|
||
|
|
|
||
|
|
return c.WritePacket(data)
|
||
|
|
}
|