mirror of https://github.com/jackc/pgx.git
74 lines
1.5 KiB
Go
74 lines
1.5 KiB
Go
package pgproto3
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/binary"
|
|
"encoding/hex"
|
|
"encoding/json"
|
|
)
|
|
|
|
type FunctionCallResponse struct {
|
|
Result []byte
|
|
}
|
|
|
|
func (*FunctionCallResponse) Backend() {}
|
|
|
|
func (dst *FunctionCallResponse) UnmarshalBinary(src []byte) error {
|
|
buf := bytes.NewBuffer(src)
|
|
|
|
if buf.Len() < 4 {
|
|
return &invalidMessageFormatErr{messageType: "FunctionCallResponse"}
|
|
}
|
|
resultSize := int(binary.BigEndian.Uint32(buf.Next(4)))
|
|
if buf.Len() != resultSize {
|
|
return &invalidMessageFormatErr{messageType: "FunctionCallResponse"}
|
|
}
|
|
|
|
dst.Result = make([]byte, resultSize)
|
|
copy(dst.Result, buf.Bytes())
|
|
|
|
return nil
|
|
}
|
|
|
|
func (src *FunctionCallResponse) MarshalBinary() ([]byte, error) {
|
|
var bigEndian BigEndianBuf
|
|
buf := &bytes.Buffer{}
|
|
|
|
buf.WriteByte('V')
|
|
buf.Write(bigEndian.Uint32(uint32(4 + 4 + len(src.Result))))
|
|
|
|
if src.Result == nil {
|
|
buf.Write(bigEndian.Int32(-1))
|
|
} else {
|
|
buf.Write(bigEndian.Int32(int32(len(src.Result))))
|
|
buf.Write(src.Result)
|
|
}
|
|
|
|
return buf.Bytes(), nil
|
|
}
|
|
|
|
func (src *FunctionCallResponse) MarshalJSON() ([]byte, error) {
|
|
var formattedValue map[string]string
|
|
var hasNonPrintable bool
|
|
for _, b := range src.Result {
|
|
if b < 32 {
|
|
hasNonPrintable = true
|
|
break
|
|
}
|
|
}
|
|
|
|
if hasNonPrintable {
|
|
formattedValue = map[string]string{"binary": hex.EncodeToString(src.Result)}
|
|
} else {
|
|
formattedValue = map[string]string{"text": string(src.Result)}
|
|
}
|
|
|
|
return json.Marshal(struct {
|
|
Type string
|
|
Result map[string]string
|
|
}{
|
|
Type: "FunctionCallResponse",
|
|
Result: formattedValue,
|
|
})
|
|
}
|