[Mono-dev] PtrToStructure, FreeHGlobal, then access to the structure
andyhume32 at yahoo.co.uk
Tue Aug 12 04:50:30 EDT 2008
In the class library I see a few pieces of code like the following. Am I
correct in thinking that code like this is bad?
info = Marshal.PtrToStructure (ptr, ...);
// now we access the structure
int id = info.Id;
string name = Marshal.PtrToStringUni (info.Name);
Since the structure might contain only blittable types then the structure
reference may simply be to the native memory and not to a managed copy? So
accessing a field there is accessing free'd memory...
With strict native heap enabled it fails, so something is wrong...
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