Edit file File name : cdata.i Content :/* ----------------------------------------------------------------------------- * cdata.i * * SWIG library file containing macros for manipulating raw C data as strings. * ----------------------------------------------------------------------------- */ %{ typedef struct SWIGCDATA { char *data; intgo len; } SWIGCDATA; %} %fragment("cdata", "header") %{ struct swigcdata { intgo 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 } } %} /* ----------------------------------------------------------------------------- * %cdata(TYPE [, NAME]) * * Convert raw C data to a binary string. * ----------------------------------------------------------------------------- */ %define %cdata(TYPE,NAME...) %insert("header") { #if #NAME == "" static SWIGCDATA cdata_##TYPE(TYPE *ptr, int nelements) { #else static SWIGCDATA cdata_##NAME(TYPE *ptr, int nelements) { #endif SWIGCDATA d; d.data = (char *) ptr; #if #TYPE != "void" d.len = nelements*sizeof(TYPE); #else d.len = nelements; #endif return d; } } %typemap(default) int nelements "$1 = 1;" #if #NAME == "" SWIGCDATA cdata_##TYPE(TYPE *ptr, int nelements); #else SWIGCDATA cdata_##NAME(TYPE *ptr, int nelements); #endif %enddef %typemap(default) int nelements; %rename(cdata) ::cdata_void(void *ptr, int nelements); %cdata(void); /* Memory move function. Due to multi-argument typemaps this appears to be wrapped as void memmove(void *data, const char *s); */ void memmove(void *data, char *indata, int inlen); Save