[Haskell-cafe] make an PrimMonad-wrapped FFI call

[Alexey Egorov]

 Hello haskellers,

I'm writing FFI bindings to C library which uses some allocations across functions call, for example:

int *alloc_buf(void);
void free_buf(int *);

So I need to use newForeignPtr to make sure buffer will be free'd when all pointers to it get collected.
But what if I want to do this in PrimMonad (say, ST) and not IO (returned by newForeignPtr)?

Thanks.
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