Yeah, I agree there is something odd happening with this function.

It clearly wants a pointer to a pointer, and then graphedit and all the sample code I see online frees the inner pointer but never the outer pointer.

So I cannot alloc that outer pointer of we get a leak. It does not help that the documentation for this method says "Normal applications will never call this function" And then proceeds to not describe it very well.

I felt like a static and an field in the object where roughly equivalent.

I can do some tests.
-aric

On 2/3/12 4:45 AM, Chris Robinson wrote:
On Friday, February 03, 2012 2:43:57 PM Dmitry Timoshkov wrote:
Aric Stewart<[email protected]>  wrote:
-    REGFILTER2 *prf2;
+    static REGFILTER2 *prf2;

What's the point of this change?

It returns a pointer to the pointer, so the variable needs to remain valid
after the function exits. The code doesn't really feel safe, though. At the
very least, I think the pointer should perhaps be made part of the
implementation object, but even that feels kinda ugly. What happens if it's
called multiple times?


REGFILTER **r1, **r2;

obj->ParseFilterData(data1, cb1,&r1);
obj->ParseFilterData(data2, cb2,&r2);

ok(r1 == r2, "Oops\n");

CoTaskMemFree(*r1);
/* *r2 is freed now, too */


Doesn't really seem right to me.




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