ndi 0.1.2

NewTek NDI bindings for rust
Documentation 
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#![allow(dead_code)]
#![allow(deref_nullptr)]
#![allow(non_camel_case_types)]
#![allow(non_snake_case)]
#![allow(non_upper_case_globals)]

use std::ops::{Deref, DerefMut};

#[cfg(target_os = "windows")]
mod bindings_windows;

#[cfg(target_os = "linux")]
mod bindings_linux;

pub mod bindings {
    #[cfg(target_os = "windows")]
    pub use super::bindings_windows::*;

    #[cfg(target_os = "linux")]
    pub use super::bindings_linux::*;
}

/// Utility for adding a destructor function to a pointer which is called once the struct is dropped.
pub(crate) struct OnDrop<P: Copy> {
    inner: P,
    destroy: fn(P),
}

impl<T> OnDrop<*mut T> {
    pub(crate) fn new(inner: *mut T, destroy: fn(*mut T)) -> Self {
        OnDrop { inner, destroy }
    }
}

impl<P: Copy> Deref for OnDrop<P> {
    type Target = P;

    fn deref(&self) -> &Self::Target {
        &self.inner
    }
}

impl<P: Copy> DerefMut for OnDrop<P> {
    fn deref_mut(&mut self) -> &mut Self::Target {
        &mut self.inner
    }
}

impl<P: Copy> Drop for OnDrop<P> {
    fn drop(&mut self) {
        (self.destroy)(self.inner);
    }
}

#[test]
fn on_drop_simple() {
    fn drop_boxed_i32(b: *mut i32) {
        let b = unsafe { Box::from_raw(b) };
        assert_eq!(*b, 5);
        drop(b);
    }

    let num = Box::into_raw(Box::new(2));
    unsafe { *num += 3 };

    let on_drop = OnDrop::new(num, drop_boxed_i32);
    drop(on_drop);
}