mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 10:02:47 +00:00
59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
|
package pgproto3
|
||
|
|
||
|
import (
|
||
|
"encoding/binary"
|
||
|
"encoding/json"
|
||
|
"errors"
|
||
|
|
||
|
"github.com/jackc/pgio"
|
||
|
)
|
||
|
|
||
|
const cancelRequestCode = 80877102
|
||
|
|
||
|
type CancelRequest struct {
|
||
|
ProcessID uint32
|
||
|
SecretKey uint32
|
||
|
}
|
||
|
|
||
|
// Frontend identifies this message as sendable by a PostgreSQL frontend.
|
||
|
func (*CancelRequest) Frontend() {}
|
||
|
|
||
|
func (dst *CancelRequest) Decode(src []byte) error {
|
||
|
if len(src) != 12 {
|
||
|
return errors.New("bad cancel request size")
|
||
|
}
|
||
|
|
||
|
requestCode := binary.BigEndian.Uint32(src)
|
||
|
|
||
|
if requestCode != cancelRequestCode {
|
||
|
return errors.New("bad cancel request code")
|
||
|
}
|
||
|
|
||
|
dst.ProcessID = binary.BigEndian.Uint32(src[4:])
|
||
|
dst.SecretKey = binary.BigEndian.Uint32(src[8:])
|
||
|
|
||
|
return nil
|
||
|
}
|
||
|
|
||
|
// Encode encodes src into dst. dst will include the 4 byte message length.
|
||
|
func (src *CancelRequest) Encode(dst []byte) []byte {
|
||
|
dst = pgio.AppendInt32(dst, 16)
|
||
|
dst = pgio.AppendInt32(dst, cancelRequestCode)
|
||
|
dst = pgio.AppendUint32(dst, src.ProcessID)
|
||
|
dst = pgio.AppendUint32(dst, src.SecretKey)
|
||
|
return dst
|
||
|
}
|
||
|
|
||
|
// MarshalJSON implements encoding/json.Marshaler.
|
||
|
func (src CancelRequest) MarshalJSON() ([]byte, error) {
|
||
|
return json.Marshal(struct {
|
||
|
Type string
|
||
|
ProcessID uint32
|
||
|
SecretKey uint32
|
||
|
}{
|
||
|
Type: "CancelRequest",
|
||
|
ProcessID: src.ProcessID,
|
||
|
SecretKey: src.SecretKey,
|
||
|
})
|
||
|
}
|