Expand description
A cross-platform Rust API for memory mapped buffers.
The core functionality is provided by either Mmap or MmapMut,
which correspond to mapping a File to a &[u8]
or &mut [u8]
respectively. Both function by dereferencing to a slice, allowing the
Mmap/MmapMut to be used in the same way you would the equivalent slice
types.
Examples
For simple cases Mmap can be used directly:
use std::fs::File;
use std::io::Read;
use memmap2::Mmap;
let mut file = File::open("LICENSE-APACHE")?;
let mut contents = Vec::new();
file.read_to_end(&mut contents)?;
let mmap = unsafe { Mmap::map(&file)? };
assert_eq!(&contents[..], &mmap[..]);However for cases which require configuration of the mapping, then
you can use MmapOptions in order to further configure a mapping
before you create it.
Structs
- A handle to an immutable memory mapped buffer.
- A handle to a mutable memory mapped buffer.
- A memory map builder, providing advanced options and flags for specifying memory map behavior.
- A handle to a raw memory mapped buffer.