Struct glow::native::DebugCallbackRawPtr

struct DebugCallbackRawPtr {
    callback: *mut c_void,
}

Store a boxed callback (i.e., Box<Box<dyn FnMut(...)>>) as a raw pointer, so that it can be referenced by the C API and later converted back into a Box and dropped.

We use a raw pointer here because Box aliasing rules are not fully defined, so we can’ guarantee that it’s not undefined behavior to keep a Box here while it’s used as a raw pointer in the C API.

Fields

callback: *mut c_void

Trait Implementations

impl Drop for DebugCallbackRawPtr

fn drop(&mut self)

Executes the destructor for this type.

impl Send for DebugCallbackRawPtr

impl Sync for DebugCallbackRawPtr