Struct Segment 

pub struct Segment { /* private fields */ }

A segment of OS memory.

Implementations

impl Segment

pub fn new( base: Option<*mut u8>, size: usize, page_size: usize, flags: ProtFlags, ) -> Result<Self, Error>

Create a segment of OS memory.

When base is None, new memory will be allocated. Otherwise, the given pointer will be used, and Segment will not assume ownership of the underlying memory segment. page_size must be a power of 2.

pub fn base(&self) -> *mut u8

Base pointer to the segment.

pub fn as_slice(&self) -> &mut [u8]

Access the segment as a byte slice.

pub fn make_shared( &self, offset: usize, shm: &SharedMemory, flags: ProtFlags, ) -> Result<(), Error>

Patch a SharedMemory to a part of this memory segment. The given shm will start with an offset from the beginning of Segment, and cannot overrun the end of the segment. The given SharedMemory outlives this object once patched (even if it is over-shadowed by subsequent patching).

Trait Implementations

impl Drop for Segment

fn drop(&mut self)

Executes the destructor for this type.