--- /dev/null 2015-10-06 23:29:51.451421828 +0200 +++ new/src/share/vm/gc/shenandoah/shenandoahRootProcessor.hpp 2015-10-14 13:54:54.835907319 +0200 @@ -0,0 +1,97 @@ +/* + * Copyright (c) 2015, Red Hat, Inc. and/or its affiliates. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef SHARE_VM_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP +#define SHARE_VM_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP + +#include "gc/shared/strongRootsScope.hpp" +#include "memory/allocation.hpp" +#include "runtime/mutex.hpp" + +class CLDClosure; +class CodeBlobClosure; +class G1CollectedHeap; +class G1GCPhaseTimes; +class G1ParPushHeapRSClosure; +class Monitor; +class OopClosure; +class SubTasksDone; + +class ShenandoahRootProcessor : public StackObj { + SubTasksDone* _process_strong_tasks; + StrongRootsScope _srs; + + enum Shenandoah_process_roots_tasks { + SHENANDOAH_RP_PS_Universe_oops_do, + SHENANDOAH_RP_PS_JNIHandles_oops_do, + SHENANDOAH_RP_PS_JNIHandles_weak_oops_do, + SHENANDOAH_RP_PS_ObjectSynchronizer_oops_do, + SHENANDOAH_RP_PS_FlatProfiler_oops_do, + SHENANDOAH_RP_PS_Management_oops_do, + SHENANDOAH_RP_PS_SystemDictionary_oops_do, + SHENANDOAH_RP_PS_ClassLoaderDataGraph_oops_do, + SHENANDOAH_RP_PS_jvmti_oops_do, + SHENANDOAH_RP_PS_CodeCache_oops_do, + SHENANDOAH_RP_PS_filter_satb_buffers, + SHENANDOAH_RP_PS_refProcessor_oops_do, + // Leave this one last. + SHENANDOAH_RP_PS_NumElements + }; + + void process_java_roots(OopClosure* scan_non_heap_roots, + CLDClosure* thread_stack_clds, + CLDClosure* scan_strong_clds, + CLDClosure* scan_weak_clds, + CodeBlobClosure* scan_strong_code, + uint worker_i); + + void process_vm_roots(OopClosure* scan_non_heap_roots, + OopClosure* scan_non_heap_weak_roots, + uint worker_i); + +public: + ShenandoahRootProcessor(ShenandoahHeap* heap, uint n_workers); + ~ShenandoahRootProcessor(); + + void process_roots(OopClosure* strong_oops, + OopClosure* weak_oops, + CLDClosure* strong_clds, + CLDClosure* weak_clds, + CLDClosure* thread_stack_clds, + CodeBlobClosure* strong_code); + + // Apply oops, clds and blobs to all strongly reachable roots in the system + void process_strong_roots(OopClosure* oops, + CLDClosure* clds, + CodeBlobClosure* blobs); + + // Apply oops, clds and blobs to strongly and weakly reachable roots in the system + void process_all_roots(OopClosure* oops, + CLDClosure* clds, + CodeBlobClosure* blobs); + + // Number of worker threads used by the root processor. + uint n_workers() const; +}; + +#endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP