Introduce VMSpace, and allow VMSpace to be set lazily #802
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space is used as a VM space, and there is no allocation in the space.
space. We require VM space to be outside our heap range. Some minor cleanup.
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wks
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May 4, 2023
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src/policy/vmspace.rs
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| fn name(&self) -> &str { | ||
| self.space().name() | ||
| } | ||
| fn is_live(&self, object: ObjectReference) -> bool { | ||
| self.space().is_live(object) | ||
| } | ||
| fn is_reachable(&self, object: ObjectReference) -> bool { | ||
| self.space().is_reachable(object) | ||
| } | ||
| #[cfg(feature = "object_pinning")] | ||
| fn pin_object(&self, object: ObjectReference) -> bool { | ||
| self.space().pin_object(object) | ||
| } | ||
| #[cfg(feature = "object_pinning")] | ||
| fn unpin_object(&self, object: ObjectReference) -> bool { | ||
| self.space().unpin_object(object) | ||
| } | ||
| #[cfg(feature = "object_pinning")] | ||
| fn is_object_pinned(&self, object: ObjectReference) -> bool { | ||
| self.space().is_object_pinned(object) | ||
| } |
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If this pattern (self.space().xxxx()) repeats, we may introduce the delegate crate: https://crates.io/crates/delegate
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I made the changes as suggested, using the delegate crate. It works well.
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@wks Is the PR good to merge? Let me know if other changes are needed. |
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May 8, 2023
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Update to mmtk/mmtk-core#802: Setting VM space start and size by options
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May 8, 2023
Merge with mmtk/mmtk-core#802 and mmtk/julia#12
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This PR allows users to set the start address and size for VM space, and also allows VM space to be initialised lazily.
VMSpacewhich wraps the normalImmortalSpace. The policy is mostly the same asImmortalSpaceexcept that the space may be uninitialized and can be initialized later.vm_space_startandvm_space_size.align_allocation.