func NewCIF(abi ABI, rtype Type, atypes ...Type) (CIF, error) {
var cif C.ffi_cif
atypes_ptr := (**C.ffi_type)(unsafe.Pointer(&atypes[0]))
status := C.ffi_prep_cif(&cif, C.ffi_abi(abi), C.uint(len(atypes)), rtype, atypes_ptr)
if status == C.FFI_OK {
return CIF(cif), nil
}
return CIF{}, ffi_error(status)
}
// NewCif creates a new ffi call interface object
func NewCif(abi Abi, rtype Type, args []Type) (*Cif, error) {
cif := &Cif{}
c_nargs := C.uint(len(args))
var c_args **C.ffi_type = nil
if len(args) > 0 {
var cargs = make([]*C.ffi_type, len(args))
for i, _ := range args {
cargs[i] = args[i].cptr()
}
c_args = &cargs[0]
}
sc := C.ffi_prep_cif(&cif.c, C.ffi_abi(abi), c_nargs, rtype.cptr(), c_args)
if sc != C.FFI_OK {
return nil, fmt.Errorf("error while preparing cif (%s)",
Status(sc))
}
cif.rtype = rtype
cif.args = args
return cif, nil
}