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

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

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