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66 lines
1.4 KiB
66 lines
1.4 KiB
package pgproto3 |
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import ( |
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"bytes" |
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"encoding/json" |
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"github.com/jackc/pgio" |
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) |
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type ParameterStatus struct { |
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Name string |
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Value string |
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} |
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// Backend identifies this message as sendable by the PostgreSQL backend. |
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func (*ParameterStatus) 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 *ParameterStatus) Decode(src []byte) error { |
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buf := bytes.NewBuffer(src) |
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b, err := buf.ReadBytes(0) |
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if err != nil { |
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return err |
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} |
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name := string(b[:len(b)-1]) |
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b, err = buf.ReadBytes(0) |
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if err != nil { |
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return err |
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} |
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value := string(b[:len(b)-1]) |
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*dst = ParameterStatus{Name: name, Value: value} |
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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 *ParameterStatus) Encode(dst []byte) []byte { |
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dst = append(dst, 'S') |
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sp := len(dst) |
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dst = pgio.AppendInt32(dst, -1) |
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dst = append(dst, src.Name...) |
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dst = append(dst, 0) |
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dst = append(dst, src.Value...) |
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dst = append(dst, 0) |
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pgio.SetInt32(dst[sp:], int32(len(dst[sp:]))) |
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return dst |
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} |
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// MarshalJSON implements encoding/json.Marshaler. |
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func (ps ParameterStatus) MarshalJSON() ([]byte, error) { |
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return json.Marshal(struct { |
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Type string |
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Name string |
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Value string |
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}{ |
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Type: "ParameterStatus", |
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Name: ps.Name, |
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Value: ps.Value, |
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}) |
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}
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