LSPlant/library/jni/art/runtime/gc/gc_cause.hpp
2022-02-19 03:47:26 +08:00

46 lines
2.0 KiB
C++

#pragma once
namespace lsplant::art::gc {
// What caused the GC?
enum GcCause {
// Invalid GC cause used as a placeholder.
kGcCauseNone,
// GC triggered by a failed allocation. Thread doing allocation is blocked waiting for GC before
// retrying allocation.
kGcCauseForAlloc,
// A background GC trying to ensure there is free memory ahead of allocations.
kGcCauseBackground,
// An explicit System.gc() call.
kGcCauseExplicit,
// GC triggered for a native allocation when NativeAllocationGcWatermark is exceeded.
// (This may be a blocking GC depending on whether we run a non-concurrent collector).
kGcCauseForNativeAlloc,
// GC triggered for a collector transition.
kGcCauseCollectorTransition,
// Not a real GC cause, used when we disable moving GC (currently for
// GetPrimitiveArrayCritical).
kGcCauseDisableMovingGc,
// Not a real GC cause, used when we trim the heap.
kGcCauseTrim,
// Not a real GC cause, used to implement exclusion between GC and instrumentation.
kGcCauseInstrumentation,
// Not a real GC cause, used to add or remove app image spaces.
kGcCauseAddRemoveAppImageSpace,
// Not a real GC cause, used to implement exclusion between GC and debugger.
kGcCauseDebugger,
// GC triggered for background transition when both foreground and background collector are CMS.
kGcCauseHomogeneousSpaceCompact,
// Class linker cause, used to guard filling art methods with special values.
kGcCauseClassLinker,
// Not a real GC cause, used to implement exclusion between code cache metadata and GC.
kGcCauseJitCodeCache,
// Not a real GC cause, used to add or remove system-weak holders.
kGcCauseAddRemoveSystemWeakHolder,
// Not a real GC cause, used to prevent hprof running in the middle of GC.
kGcCauseHprof,
// Not a real GC cause, used to prevent GetObjectsAllocated running in the middle of GC.
kGcCauseGetObjectsAllocated,
// GC cause for the profile saver.
kGcCauseProfileSaver,
};
} // namespace lsplant::art::gc