Nate,
I'm back with some more questions about node-struct and handling nested
structures.
In the example below, I created one simple struct with a single Int and
another struct with an Int and a pointer to the first struct.
What I noticed is that I can't access the int inside the nested structure.
Another thing I noticed is that if I do something like this:
var myStruct = Struct();
myStruct.defineProperty('someProp', ref.refType('int'));
var t = new myStruct();
accessing t.someProp fails. If I change the definition above to
('someProp', ref.types.int), I can access t.someProp with no problem.
Why is this and how to deal with this?
Below you can see I'm running into the same issue, however since I'm
defining the property is a refType(struct_one) I can't figure out how to
access its propertied. It seems like it's an unrecognized type.
I have this .js file:
var ffi = require('ffi');
var ref = require('ref');
var Struct = require('ref-struct');
//define a simple struct
var t = Struct({
't_i': 'int'
});
//define a second stuct with a pointer to an instance of the first struct
var f = new Struct();
f.defineProperty('fp_i', ref.types.int);
f.defineProperty('t_p', ref.refType(t));
var tPtr = ref.refType(t);
var fPtr = ref.refType(f);
var lib = './libffi.so.1.0.1';
var l = ffi.Library(lib, {
'setT': ['void', [fPtr]]
});
var _f = new f();
var x = null, d = null;
console.log(_f); //I see the buffer that's created
l.setT(_f.ref());
console.log(_f); //I see the updated buffer
console.log('fp_i: ', _f.fp_i); //works great, returns the expected value
console.log('t_i: ', _f.t_p.t_i); //this is undefined, not sure how to
access the nested struct's members.
My .c file looks like this:
#include <stdio.h>
#include <string.h>
typedef struct t {
int t_i;
} t;
typedef struct f {
int fp_i;
struct t *t_p;
} f;
void setT(f *i) {
t *tt;
i->fp_i = 5;
tt->t_i = 6;
i->t_p = tt;
printf("\tThis is a test: %i\n", i->t_p->t_i); //successfully prints 6
}
void main(){}
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