DMA-Buf Heap Helper Library

The DMA-Buf Heap interface in Linux is aimed at providing a way for the user-space to allocate memory buffers that can be efficiently shared between multiple devices through the DMA-Buf mechanism. It aims at superseeding the ION Interface previously found in Android.

This library provides a safe abstraction over this interface for Rust.

Hello World

let heap = DmaBufHeap::new(DmaBufHeapType::CMA)
    .unwrap();

// Buffer will automatically be freed when `buffer_file` goes out of scope.
let buffer_file: File = heap.allocate(1024).unwrap();
// Buffer lifetime must be manually managed.
let buffer_rawfd: RawFd = heap.allocate(1024).unwrap();