// decode from bytes.
// Return bytes decoded or 0 if we could not decode a complete object.
//
func decode(data *C.pn_data_t, bytes []byte) (int, error) {
if len(bytes) == 0 {
return 0, nil
}
n := int(C.pn_data_decode(data, cPtr(bytes), cLen(bytes)))
if n == int(C.PN_UNDERFLOW) {
C.pn_error_clear(C.pn_data_error(data))
return 0, nil
} else if n <= 0 {
return 0, fmt.Errorf("unmarshal %s", PnErrorCode(n))
}
return n, nil
}
// decode from bytes. Return bytes decoded and errEOS if we run out of data.
func (pd pnDecoder) decode(bytes []byte) (n int, err error) {
C.pn_data_clear(pd.data)
if len(bytes) == 0 {
return 0, errEOS
}
cBuf := (*C.char)(unsafe.Pointer(&bytes[0]))
result := int(C.pn_data_decode(pd.data, cBuf, C.size_t(len(bytes))))
if result < 0 {
return 0, errorCode(result)
} else {
return result, nil
}
}
// decode from bytes.
// Return bytes decoded or 0 if we could not decode a complete object.
//
func decode(data *C.pn_data_t, bytes []byte) int {
if len(bytes) == 0 {
return 0
}
n := int(C.pn_data_decode(data, cPtr(bytes), cLen(bytes)))
if n == int(C.PN_UNDERFLOW) {
C.pn_error_clear(C.pn_data_error(data))
return 0
} else if n <= 0 {
panic(internal.Errorf("unmarshal %s", internal.PnErrorCode(n)))
}
return n
}