Struct mmtk::plan::mutator_context::Mutator

#[repr(C)]pub struct Mutator<VM: VMBinding> {
    pub allocators: Allocators<VM>,
    pub barrier: Box<dyn Barrier>,
    pub mutator_tls: OpaquePointer,
    pub plan: &'static dyn Plan<VM = VM>,
    pub config: MutatorConfig<VM>,
}

A mutator is a per-thread data structure that manages allocations and barriers. It is usually highly coupled with the language VM. It is recommended for MMTk users 1) to have a mutator struct of the same layout in the thread local storage that can be accessed efficiently, and 2) to implement fastpath allocation and barriers for the mutator in the VM side.

Fields

allocators: Allocators<VM>

barrier: Box<dyn Barrier>

mutator_tls: OpaquePointer

plan: &'static dyn Plan<VM = VM>

config: MutatorConfig<VM>

Trait Implementations

impl<VM: VMBinding> MutatorContext<VM> for Mutator<VM>

fn prepare(&mut self, tls: OpaquePointer)

fn release(&mut self, tls: OpaquePointer)

fn alloc(
    &mut self,
    size: usize,
    align: usize,
    offset: isize,
    allocator: AllocationType
) -> Address

fn post_alloc(
    &mut self,
    refer: ObjectReference,
    _bytes: usize,
    allocator: AllocationType
)

fn get_tls(&self) -> OpaquePointer

fn barrier(&mut self) -> &mut dyn Barrier

fn flush_remembered_sets(&mut self)

fn flush(&mut self)

fn record_modified_node(&mut self, obj: ObjectReference)