Struct VmAreaStruct 

pub struct VmAreaStruct {
    pub loader: Arc<dyn MmLoader>,
}

Represents a memory-mapped region within a process’s virtual address space, corresponding to the Linux kernel’s struct vm_area_struct.

Each VmAreaStruct corresponds to a contiguous region with a specific mapping behavior—e.g., anonymous memory or file-backed memory. This abstraction allows the pager to defer the actual page population until the memory is accessed, using demand paging.

The key component is the MmLoader, which defines how to load the contents of a page when it is accessed (e.g., reading from a file or zero-filling the page).

Fields

loader: Arc<dyn MmLoader>

A handle to the memory loader for this region.

The MmLoader defines how to populate pages in this VMA during lazy loading. The loader must be thread-safe and cloneable.

Trait Implementations

impl Clone for VmAreaStruct

fn clone(&self) -> VmAreaStruct

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.