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src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.hpp
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rev 55429 : 8226413: Shenandoah: Separate root scanner for SH::object_iterate()
*** 112,121 ****
--- 112,122 ----
~ShenandoahCodeCacheRoots();
void code_blobs_do(CodeBlobClosure* blob_cl, uint worker_id);
};
+ template <bool SINGLE_THREADED>
class ShenandoahClassLoaderDataRoots {
public:
ShenandoahClassLoaderDataRoots();
void clds_do(CLDClosure* strong_clds, CLDClosure* weak_clds, uint worker_id);
*** 134,147 ****
template <typename ITR>
class ShenandoahRootScanner : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
- ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots;
- ShenandoahClassLoaderDataRoots _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahCodeCacheRoots<ITR> _code_roots;
public:
ShenandoahRootScanner(uint n_workers, ShenandoahPhaseTimings::Phase phase);
// Apply oops, clds and blobs to all strongly reachable roots in the system,
// during class unloading cycle
--- 135,148 ----
template <typename ITR>
class ShenandoahRootScanner : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahCodeCacheRoots<ITR> _code_roots;
+ ShenandoahJNIHandleRoots<false /*concurrent*/ > _jni_roots;
+ ShenandoahClassLoaderDataRoots<false /*single threaded*/> _cld_roots;
public:
ShenandoahRootScanner(uint n_workers, ShenandoahPhaseTimings::Phase phase);
// Apply oops, clds and blobs to all strongly reachable roots in the system,
// during class unloading cycle
*** 150,173 ****
// Apply oops, clds and blobs to all strongly reachable roots and weakly reachable
// roots when class unloading is disabled during this cycle
void roots_do(uint worker_id, OopClosure* cl);
void roots_do(uint worker_id, OopClosure* oops, CLDClosure* clds, CodeBlobClosure* code, ThreadClosure* tc = NULL);
- // For heap object iteration
- void roots_do_unchecked(OopClosure* cl);
- void strong_roots_do_unchecked(OopClosure* cl);
};
typedef ShenandoahRootScanner<ShenandoahAllCodeRootsIterator> ShenandoahAllRootScanner;
typedef ShenandoahRootScanner<ShenandoahCsetCodeRootsIterator> ShenandoahCSetRootScanner;
// Evacuate all roots at a safepoint
class ShenandoahRootEvacuator : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots;
! ShenandoahClassLoaderDataRoots _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahWeakRoots _weak_roots;
ShenandoahStringDedupRoots _dedup_roots;
ShenandoahCodeCacheRoots<ShenandoahCsetCodeRootsIterator> _code_roots;
bool _include_concurrent_roots;
--- 151,188 ----
// Apply oops, clds and blobs to all strongly reachable roots and weakly reachable
// roots when class unloading is disabled during this cycle
void roots_do(uint worker_id, OopClosure* cl);
void roots_do(uint worker_id, OopClosure* oops, CLDClosure* clds, CodeBlobClosure* code, ThreadClosure* tc = NULL);
};
typedef ShenandoahRootScanner<ShenandoahAllCodeRootsIterator> ShenandoahAllRootScanner;
typedef ShenandoahRootScanner<ShenandoahCsetCodeRootsIterator> ShenandoahCSetRootScanner;
+ // This scanner is only for SH::object_iteration() and only supports single-threaded
+ // root scanning
+ class ShenandoahHeapIterationRootScanner : public ShenandoahRootProcessor {
+ private:
+ ShenandoahSerialRoots _serial_roots;
+ ShenandoahThreadRoots _thread_roots;
+ ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots;
+ ShenandoahClassLoaderDataRoots<true /*single threaded*/> _cld_roots;
+ ShenandoahCodeCacheRoots<ShenandoahAllCodeRootsIterator> _code_roots;
+
+ public:
+ ShenandoahHeapIterationRootScanner();
+
+ void roots_do(OopClosure* cl);
+ void strong_roots_do(OopClosure* cl);
+ };
+
// Evacuate all roots at a safepoint
class ShenandoahRootEvacuator : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots;
! ShenandoahClassLoaderDataRoots<false /*single threaded*/> _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahWeakRoots _weak_roots;
ShenandoahStringDedupRoots _dedup_roots;
ShenandoahCodeCacheRoots<ShenandoahCsetCodeRootsIterator> _code_roots;
bool _include_concurrent_roots;
*** 181,191 ****
// Update all roots at a safepoint
class ShenandoahRootUpdater : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots;
! ShenandoahClassLoaderDataRoots _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahWeakRoots _weak_roots;
ShenandoahStringDedupRoots _dedup_roots;
ShenandoahCodeCacheRoots<ShenandoahCsetCodeRootsIterator> _code_roots;
const bool _update_code_cache;
--- 196,206 ----
// Update all roots at a safepoint
class ShenandoahRootUpdater : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots;
! ShenandoahClassLoaderDataRoots<false /*single threaded*/> _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahWeakRoots _weak_roots;
ShenandoahStringDedupRoots _dedup_roots;
ShenandoahCodeCacheRoots<ShenandoahCsetCodeRootsIterator> _code_roots;
const bool _update_code_cache;
*** 200,210 ****
// Adjuster all roots at a safepoint during full gc
class ShenandoahRootAdjuster : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots;
! ShenandoahClassLoaderDataRoots _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahWeakRoots _weak_roots;
ShenandoahStringDedupRoots _dedup_roots;
ShenandoahCodeCacheRoots<ShenandoahAllCodeRootsIterator> _code_roots;
--- 215,225 ----
// Adjuster all roots at a safepoint during full gc
class ShenandoahRootAdjuster : public ShenandoahRootProcessor {
private:
ShenandoahSerialRoots _serial_roots;
ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots;
! ShenandoahClassLoaderDataRoots<false /*single threaded*/> _cld_roots;
ShenandoahThreadRoots _thread_roots;
ShenandoahWeakRoots _weak_roots;
ShenandoahStringDedupRoots _dedup_roots;
ShenandoahCodeCacheRoots<ShenandoahAllCodeRootsIterator> _code_roots;
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