Type Alias DestroyFn 

pub type DestroyFn = unsafe extern "C" fn(plugin: *mut Box<dyn Plugin>);

Type signature for the plugin destruction function exported by cdylib plugins.

Frees a plugin previously returned by CreateFn. The loader calls this during shutdown or when unloading a plugin.

Safety

• plugin must have been returned by CreateFn from the same library
• Must not be called more than once on the same pointer