Hi,
I am facing the following issue:
I have a GO code that has to be called from the C code:
var field_mappings map[string]string = map[string]string{
" A": "a",
"B": "b",
"C": "c",
"D": "d"}
//export CallBack
func CallBack(key *C.char, value *C.char, value_len C.size_t){
if remap, ok := field_mappings[key]; ok {
fmt.Println(key, remap)
}
}
I am passing this callback method to the C function
func ReloadPatternDB(opts Y){
x := C.CString(opts.x)
C.reload_pattern_db(x, CallBack);
}
int reload_pattern_db(const gchar* filename, key_value_cb cb)
{
//
}
Following is my C header file:
#ifndef _TEST_H_
#define _TEST_H_
#include <stdlib.h>
typedef void (*key_value_cb)(const char* key, const char* value, size_t
value_len);
int initialize_engine(const char* filename, const char* module_path,
key_value_cb cb);
int reload_pattern_db(const char* filename, key_value_cb cb);
void match(const char* pattern, size_t pattern_len, const char* program,
size_t program_len);
#endif
When I compile the GO code I am getting the following error:
# command-line-arguments
./main.go:80:32: cannot use key (type *_Ctype_char) as type string in map
index
./main.go:91:21: cannot use CallBack (type func(*_Ctype_char, *_Ctype_char,
_Ctype_ulong)) as type *[0]byte in argument to _Cfunc_reload_pattern_db
./main.go:143:21: cannot use CallBack (type func(*_Ctype_char,
*_Ctype_char, _Ctype_ulong)) as type *[0]byte in argument to
I am new to GO and CGO.Can someone please point out the error and help me
out ?
Thanks
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