Trait mmtk::policy::copy_context::PolicyCopyContext

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pub trait PolicyCopyContext: 'static + Send {
    type VM: VMBinding;

    // Required methods
    fn prepare(&mut self);
    fn release(&mut self);
    fn alloc_copy(
        &mut self,
        original: ObjectReference,
        bytes: usize,
        align: usize,
        offset: usize
    ) -> Address;

    // Provided method
    fn post_copy(&mut self, _obj: ObjectReference, _bytes: usize) { ... }
}
Expand description

A GC worker’s copy allocator for copying GCs. Each copying policy should provide their implementation of PolicyCopyContext. If we copy objects from one policy to a different policy, the copy context of the destination policy should be used. For example, for generational immix, the nursery is CopySpace, and the mature space is ImmixSpace. When we copy from nursery to mature, ImmixCopyContext should be used. Note that this trait should only be implemented with policy specific behaviors. Please refer to crate::util::copy::GCWorkerCopyContext which implements common behaviors for copying.

Required Associated Types§

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type VM: VMBinding

Required Methods§

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fn prepare(&mut self)

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fn release(&mut self)

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fn alloc_copy( &mut self, original: ObjectReference, bytes: usize, align: usize, offset: usize ) -> Address

Provided Methods§

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fn post_copy(&mut self, _obj: ObjectReference, _bytes: usize)

Implementors§