Struct WasmMemoryRegion 

pub struct WasmMemoryRegion { /* private fields */ }

Pre-allocated WASM memory region

Implementations

impl WasmMemoryRegion

pub fn new(size: usize) -> Self

Create new memory region

pub fn alloc(&mut self, size: usize, align: usize) -> Option<usize>

Allocate bytes from region, returns the offset

Returns the starting offset of the allocated region. Use get_slice to access the allocated memory safely.

pub fn get_slice(&self, offset: usize, len: usize) -> Option<&[u8]>

Get a slice at the given offset

pub fn get_slice_mut(&mut self, offset: usize, len: usize) -> Option<&mut [u8]>

Get a mutable slice at the given offset

pub fn reset(&mut self)

Reset region for reuse

pub fn remaining(&self) -> usize

Get remaining capacity

pub fn used(&self) -> usize

Get used bytes

pub fn as_ptr(&self) -> *const u8

Get raw pointer