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/* -----------------------------------------------------------------------------
* cdata.i
*
* SWIG library file containing macros for manipulating raw C data.
* ----------------------------------------------------------------------------- */
/* ------------------------------------------------------------
* Typemap for passing bytes with length
* ------------------------------------------------------------ */
%typemap(gotype) (const void *BYTES, size_t LENGTH) "[]byte"
%typemap(in) (const void *BYTES, size_t LENGTH) %{
$1 = ($1_ltype)$input.array;
$2 = ($2_ltype)$input.len;
%}
%apply (const void *BYTES, size_t LENGTH) { (void *BYTES, size_t LENGTH) }
%include <typemaps/cdata_begin.swg>
%fragment("cdata", "header") %{
struct swigcdata {
uintgo size;
void *data;
};
%}
%typemap(gotype) SWIGCDATA "[]byte"
%typemap(imtype) SWIGCDATA "uint64"
%typemap(out, fragment="cdata") SWIGCDATA(struct swigcdata *swig_out) %{
swig_out = (struct swigcdata *)malloc(sizeof(*swig_out));
if (swig_out) {
swig_out->size = $1.len;
swig_out->data = malloc(swig_out->size);
if (swig_out->data) {
memcpy(swig_out->data, $1.data, swig_out->size);
}
}
$result = *(long long *)(void **)&swig_out;
%}
%typemap(goout) SWIGCDATA {
type swigcdata struct { size int; data uintptr }
p := (*swigcdata)(unsafe.Pointer(uintptr($1)))
if p == nil || p.data == 0 {
$result = nil
} else {
b := make([]byte, p.size)
a := (*[0x7fffffff]byte)(unsafe.Pointer(p.data))[:p.size]
copy(b, a)
Swig_free(p.data)
Swig_free(uintptr(unsafe.Pointer(p)))
$result = b
}
}
%include <typemaps/cdata_end.swg>
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