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* Copyright ( c ) 2018 , 2019 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
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* 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 ) .
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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#ifndef SHARE_GC_SHARED_GCBEHAVIOURS_HPP
#define SHARE_GC_SHARED_GCBEHAVIOURS_HPP
#include "memory/iterator.hpp"
#include "oops/oopsHierarchy.hpp"
// This is the behaviour for checking if a CompiledMethod is unloading
// or has unloaded due to having phantomly dead oops in it after a GC.
class IsUnloadingBehaviour {
static IsUnloadingBehaviour* _current;
public :
static bool is_unloading(CompiledMethod* cm);
virtual bool has_dead_oop(CompiledMethod* cm) const = 0 ;
static IsUnloadingBehaviour* current() { return _current; }
static void set_current(IsUnloadingBehaviour* current) { _current = current; }
};
class ClosureIsUnloadingBehaviour: public IsUnloadingBehaviour {
BoolObjectClosure *const _cl;
public :
ClosureIsUnloadingBehaviour(BoolObjectClosure* is_alive)
: _cl(is_alive)
{ }
virtual bool has_dead_oop(CompiledMethod* cm) const ;
};
#endif // SHARE_GC_SHARED_GCBEHAVIOURS_HPP
Messung V0.5 in Prozent C=93 H=100 G=96
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