The dr_cache_destroy function destroys and frees resources associated with a previously created and used cache handle. This handle can no longer be used in subsequent calls to any of the above functions unless another dr_cache_init is performed.
void dr_cache_destroy(DrHdl *hdl);
DrHdl *hdl is a pointer to a previously initialized handle to a cache (see dr_cache_init).
void
dr_cache_destroy(&myHdl);