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51 lines
1.3 KiB
51 lines
1.3 KiB
package pgproto3 |
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import ( |
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"encoding/binary" |
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"encoding/json" |
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"github.com/jackc/pgio" |
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) |
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type BackendKeyData struct { |
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ProcessID uint32 |
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SecretKey uint32 |
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} |
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// Backend identifies this message as sendable by the PostgreSQL backend. |
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func (*BackendKeyData) Backend() {} |
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// Decode decodes src into dst. src must contain the complete message with the exception of the initial 1 byte message |
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// type identifier and 4 byte message length. |
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func (dst *BackendKeyData) Decode(src []byte) error { |
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if len(src) != 8 { |
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return &invalidMessageLenErr{messageType: "BackendKeyData", expectedLen: 8, actualLen: len(src)} |
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} |
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dst.ProcessID = binary.BigEndian.Uint32(src[:4]) |
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dst.SecretKey = binary.BigEndian.Uint32(src[4:]) |
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return nil |
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} |
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// Encode encodes src into dst. dst will include the 1 byte message type identifier and the 4 byte message length. |
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func (src *BackendKeyData) Encode(dst []byte) []byte { |
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dst = append(dst, 'K') |
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dst = pgio.AppendUint32(dst, 12) |
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dst = pgio.AppendUint32(dst, src.ProcessID) |
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dst = pgio.AppendUint32(dst, src.SecretKey) |
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return dst |
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} |
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// MarshalJSON implements encoding/json.Marshaler. |
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func (src BackendKeyData) MarshalJSON() ([]byte, error) { |
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return json.Marshal(struct { |
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Type string |
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ProcessID uint32 |
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SecretKey uint32 |
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}{ |
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Type: "BackendKeyData", |
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ProcessID: src.ProcessID, |
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SecretKey: src.SecretKey, |
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}) |
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}
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