diff options
Diffstat (limited to 'vendor/github.com/jackc/pgx/v5/pgproto3/backend_key_data.go')
-rw-r--r-- | vendor/github.com/jackc/pgx/v5/pgproto3/backend_key_data.go | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/vendor/github.com/jackc/pgx/v5/pgproto3/backend_key_data.go b/vendor/github.com/jackc/pgx/v5/pgproto3/backend_key_data.go new file mode 100644 index 0000000..23f5da6 --- /dev/null +++ b/vendor/github.com/jackc/pgx/v5/pgproto3/backend_key_data.go @@ -0,0 +1,50 @@ +package pgproto3 + +import ( + "encoding/binary" + "encoding/json" + + "github.com/jackc/pgx/v5/internal/pgio" +) + +type BackendKeyData struct { + ProcessID uint32 + SecretKey uint32 +} + +// Backend identifies this message as sendable by the PostgreSQL backend. +func (*BackendKeyData) Backend() {} + +// Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message +// type identifier and 4 byte message length. +func (dst *BackendKeyData) Decode(src []byte) error { + if len(src) != 8 { + return &invalidMessageLenErr{messageType: "BackendKeyData", expectedLen: 8, actualLen: len(src)} + } + + dst.ProcessID = binary.BigEndian.Uint32(src[:4]) + dst.SecretKey = binary.BigEndian.Uint32(src[4:]) + + return nil +} + +// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length. +func (src *BackendKeyData) Encode(dst []byte) ([]byte, error) { + dst, sp := beginMessage(dst, 'K') + dst = pgio.AppendUint32(dst, src.ProcessID) + dst = pgio.AppendUint32(dst, src.SecretKey) + return finishMessage(dst, sp) +} + +// MarshalJSON implements encoding/json.Marshaler. +func (src BackendKeyData) MarshalJSON() ([]byte, error) { + return json.Marshal(struct { + Type string + ProcessID uint32 + SecretKey uint32 + }{ + Type: "BackendKeyData", + ProcessID: src.ProcessID, + SecretKey: src.SecretKey, + }) +} |