Struct mmtk::plan::gc_requester::GCRequester

pub struct GCRequester<VM: VMBinding> {
    request_flag: AtomicBool,
    scheduler: Arc<GCWorkScheduler<VM>>,
}

This data structure lets mutators trigger GC.

Fields

request_flag: AtomicBool

Set by mutators to trigger GC. It is atomic so that mutators can check if GC has already been requested efficiently in poll without acquiring any mutex.

scheduler: Arc<GCWorkScheduler<VM>>

Implementations

impl<VM: VMBinding> GCRequester<VM>

pub fn new(scheduler: Arc<GCWorkScheduler<VM>>) -> Self

pub fn request(&self)

Request a GC. Called by mutators when polling (during allocation) and when handling user GC requests (e.g. System.gc(); in Java).

pub fn clear_request(&self)

Clear the “GC requested” flag so that mutators can trigger the next GC. Called by a GC worker when all mutators have come to a stop.