typedef struct { ... } SilcAtomicPointer;

    The atomic operation structure given as argument to all atomic
    operation functions.  It hols the actual pointer variable.

    SilcAtomicPointer ptr;

    // Initialize atomic variable
    silc_atomic_init_pointer(&ptr, NULL);

    ...
    // Set pointer
    silc_atomic_set_pointer(&ptr, context);
    ...

    // Uninitialize atomic variable
    silc_atomic_uninit_pointer(&ptr);