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/*
* Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
// Closures for ParNewGeneration
class ParScanThreadState;
class ParNewGeneration;
template<class E> class GenericTaskQueueSet;
typedef GenericTaskQueueSet<oop> ObjToScanQueueSet;
class ParallelTaskTerminator;
class ParScanClosure: public OopsInGenClosure {
protected:
ParScanThreadState* _par_scan_state;
ParNewGeneration* _g;
HeapWord* _boundary;
void do_oop_work(oop* p,
bool gc_barrier,
bool root_scan);
void par_do_barrier(oop* p);
public:
ParScanClosure(ParNewGeneration* g, ParScanThreadState* par_scan_state);
};
class ParScanWithBarrierClosure: public ParScanClosure {
public:
void do_oop(oop* p) { do_oop_work(p, true, false); }
void do_oop_nv(oop* p) { do_oop_work(p, true, false); }
ParScanWithBarrierClosure(ParNewGeneration* g,
ParScanThreadState* par_scan_state) :
ParScanClosure(g, par_scan_state) {}
};
class ParScanWithoutBarrierClosure: public ParScanClosure {
public:
ParScanWithoutBarrierClosure(ParNewGeneration* g,
ParScanThreadState* par_scan_state) :
ParScanClosure(g, par_scan_state) {}
void do_oop(oop* p) { do_oop_work(p, false, false); }
void do_oop_nv(oop* p) { do_oop_work(p, false, false); }
};
class ParRootScanWithBarrierTwoGensClosure: public ParScanClosure {
public:
ParRootScanWithBarrierTwoGensClosure(ParNewGeneration* g,
ParScanThreadState* par_scan_state) :
ParScanClosure(g, par_scan_state) {}
void do_oop(oop* p) { do_oop_work(p, true, true); }
};
class ParRootScanWithoutBarrierClosure: public ParScanClosure {
public:
ParRootScanWithoutBarrierClosure(ParNewGeneration* g,
ParScanThreadState* par_scan_state) :
ParScanClosure(g, par_scan_state) {}
void do_oop(oop* p) { do_oop_work(p, false, true); }
};
class ParScanWeakRefClosure: public ScanWeakRefClosure {
protected:
ParScanThreadState* _par_scan_state;
public:
ParScanWeakRefClosure(ParNewGeneration* g,
ParScanThreadState* par_scan_state);
void do_oop(oop* p);
void do_oop_nv(oop* p);
};
class ParEvacuateFollowersClosure: public VoidClosure {
ParScanThreadState* _par_scan_state;
ParScanThreadState* par_scan_state() { return _par_scan_state; }
// We want to preserve the specific types here (rather than "OopClosure")
// for later de-virtualization of do_oop calls.
ParScanWithoutBarrierClosure* _to_space_closure;
ParScanWithoutBarrierClosure* to_space_closure() {
return _to_space_closure;
}
ParRootScanWithoutBarrierClosure* _to_space_root_closure;
ParRootScanWithoutBarrierClosure* to_space_root_closure() {
return _to_space_root_closure;
}
ParScanWithBarrierClosure* _old_gen_closure;
ParScanWithBarrierClosure* old_gen_closure () {
return _old_gen_closure;
}
ParRootScanWithBarrierTwoGensClosure* _old_gen_root_closure;
ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure () {
return _old_gen_root_closure;
}
ParNewGeneration* _par_gen;
ParNewGeneration* par_gen() { return _par_gen; }
ObjToScanQueueSet* _task_queues;
ObjToScanQueueSet* task_queues() { return _task_queues; }
ParallelTaskTerminator* _terminator;
ParallelTaskTerminator* terminator() { return _terminator; }
public:
ParEvacuateFollowersClosure(
ParScanThreadState* par_scan_state_,
ParScanWithoutBarrierClosure* to_space_closure_,
ParScanWithBarrierClosure* old_gen_closure_,
ParRootScanWithoutBarrierClosure* to_space_root_closure_,
ParNewGeneration* par_gen_,
ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure_,
ObjToScanQueueSet* task_queues_,
ParallelTaskTerminator* terminator_);
void do_void();
};
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