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src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.hpp
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rev 55399 : 8225590: Shenandoah: Refactor ShenandoahClassLoaderDataRoots API
rev 55401 : 8225582: Shenandoah: Enable concurrent evacuation of JNIHandles and CLDG roots
@@ -59,13 +59,20 @@
public:
ShenandoahSerialRoots();
void oops_do(OopClosure* cl, uint worker_id);
};
-class ShenandoahJNIHandleRoots : public ShenandoahSerialRoot {
+template <bool CONCURRENT = false>
+class ShenandoahJNIHandleRoots {
+private:
+ volatile bool _claimed;
+ OopStorage::ParState<CONCURRENT, false /* is_const */> _itr;
public:
ShenandoahJNIHandleRoots();
+
+ template <typename T>
+ void oops_do(T* cl, uint worker_id = 0);
};
class ShenandoahThreadRoots {
private:
const bool _is_par;
@@ -106,16 +113,18 @@
~ShenandoahCodeCacheRoots();
void code_blobs_do(CodeBlobClosure* blob_cl, uint worker_id);
};
+template <bool CONCURRENT = false>
class ShenandoahClassLoaderDataRoots {
public:
ShenandoahClassLoaderDataRoots();
+ ~ShenandoahClassLoaderDataRoots();
- void always_strong_cld_do(CLDClosure* clds, uint worker_id);
- void cld_do(CLDClosure* clds, uint worker_id);
+ void always_strong_cld_do(CLDClosure* clds, uint worker_id = 0);
+ void cld_do(CLDClosure* clds, uint worker_id = 0);
};
class ShenandoahRootProcessor : public StackObj {
private:
ShenandoahHeap* const _heap;
@@ -129,12 +138,12 @@
template <typename ITR>
class ShenandoahRootScanner : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
- ShenandoahJNIHandleRoots _jni_roots;
- ShenandoahClassLoaderDataRoots _cld_roots;
+ ShenandoahJNIHandleRoots<> _jni_roots;
+ ShenandoahClassLoaderDataRoots<> _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahCodeCacheRoots<ITR> _code_roots;
public:
ShenandoahRootScanner(uint n_workers, ShenandoahPhaseTimings::Phase phase);
@@ -157,29 +166,30 @@
// Evacuate all roots at a safepoint
class ShenandoahRootEvacuator : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
- ShenandoahJNIHandleRoots _jni_roots;
- ShenandoahClassLoaderDataRoots _cld_roots;
+ ShenandoahJNIHandleRoots<> _jni_roots;
+ ShenandoahClassLoaderDataRoots<> _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahWeakRoots _weak_roots;
ShenandoahStringDedupRoots _dedup_roots;
ShenandoahCodeCacheRoots<ShenandoahCsetCodeRootsIterator> _code_roots;
+ bool _include_concurrent_roots;
public:
- ShenandoahRootEvacuator(uint n_workers, ShenandoahPhaseTimings::Phase phase);
+ ShenandoahRootEvacuator(uint n_workers, ShenandoahPhaseTimings::Phase phase, bool include_concurrent_roots);
void roots_do(uint worker_id, OopClosure* oops);
};
// Update all roots at a safepoint
class ShenandoahRootUpdater : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
- ShenandoahJNIHandleRoots _jni_roots;
- ShenandoahClassLoaderDataRoots _cld_roots;
+ ShenandoahJNIHandleRoots<> _jni_roots;
+ ShenandoahClassLoaderDataRoots<> _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahWeakRoots _weak_roots;
ShenandoahStringDedupRoots _dedup_roots;
ShenandoahCodeCacheRoots<ShenandoahCsetCodeRootsIterator> _code_roots;
const bool _update_code_cache;
@@ -193,12 +203,12 @@
// Adjuster all roots at a safepoint during full gc
class ShenandoahRootAdjuster : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
- ShenandoahJNIHandleRoots _jni_roots;
- ShenandoahClassLoaderDataRoots _cld_roots;
+ ShenandoahJNIHandleRoots<> _jni_roots;
+ ShenandoahClassLoaderDataRoots<> _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahWeakRoots _weak_roots;
ShenandoahStringDedupRoots _dedup_roots;
ShenandoahCodeCacheRoots<ShenandoahAllCodeRootsIterator> _code_roots;
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