prysm-pulse/beacon-chain/sync/error.go
Victor Farazdagi 41c8ff4c1b
Renames receiver in sync service (#6348)
* updates coinciding vars
* renames receiver in sync service
* Merge branch 'master' into sync-rename-receiver
2020-06-22 20:37:48 +00:00

58 lines
1.4 KiB
Go

package sync
import (
"bytes"
"errors"
"io"
"github.com/prysmaticlabs/prysm/beacon-chain/p2p/encoder"
pb "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1"
)
const genericError = "internal service error"
const rateLimitedError = "rate limited"
const stepError = "invalid range or step"
var errWrongForkDigestVersion = errors.New("wrong fork digest version")
var errInvalidEpoch = errors.New("invalid epoch")
var errInvalidFinalizedRoot = errors.New("invalid finalized root")
var errGeneric = errors.New(genericError)
var responseCodeSuccess = byte(0x00)
var responseCodeInvalidRequest = byte(0x01)
var responseCodeServerError = byte(0x02)
func (s *Service) generateErrorResponse(code byte, reason string) ([]byte, error) {
buf := bytes.NewBuffer([]byte{code})
resp := &pb.ErrorResponse{
Message: []byte(reason),
}
if _, err := s.p2p.Encoding().EncodeWithLength(buf, resp); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
// ReadStatusCode response from a RPC stream.
func ReadStatusCode(stream io.Reader, encoding encoder.NetworkEncoding) (uint8, string, error) {
b := make([]byte, 1)
_, err := stream.Read(b)
if err != nil {
return 0, "", err
}
if b[0] == responseCodeSuccess {
return 0, "", nil
}
msg := &pb.ErrorResponse{
Message: []byte{},
}
if err := encoding.DecodeWithLength(stream, msg); err != nil {
return 0, "", err
}
return b[0], string(msg.Message), nil
}