e68d585a8d
Do not wait for the GC locker in the periodic GC thread as the GC locker being held is an indication for being busy anyway. Reviewed-by: kbarrett, shade
89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
/*
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* Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_GC_G1_G1VMOPERATIONS_HPP
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#define SHARE_GC_G1_G1VMOPERATIONS_HPP
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#include "gc/shared/gcId.hpp"
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#include "gc/shared/gcVMOperations.hpp"
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// VM_operations for the G1 collector.
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// VM_GC_Operation:
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// - VM_G1Concurrent
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// - VM_G1CollectForAllocation
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// - VM_G1CollectFull
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class VM_G1CollectFull : public VM_GC_Operation {
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bool _gc_succeeded;
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public:
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VM_G1CollectFull(uint gc_count_before,
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uint full_gc_count_before,
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GCCause::Cause cause) :
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VM_GC_Operation(gc_count_before, cause, full_gc_count_before, true),
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_gc_succeeded(false) { }
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virtual VMOp_Type type() const { return VMOp_G1CollectFull; }
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virtual void doit();
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bool gc_succeeded() { return _gc_succeeded; }
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};
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class VM_G1CollectForAllocation : public VM_CollectForAllocation {
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bool _gc_succeeded;
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bool _should_initiate_conc_mark;
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bool _should_retry_gc;
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double _target_pause_time_ms;
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uint _old_marking_cycles_completed_before;
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public:
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VM_G1CollectForAllocation(size_t word_size,
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uint gc_count_before,
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GCCause::Cause gc_cause,
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bool should_initiate_conc_mark,
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double target_pause_time_ms);
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virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; }
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virtual bool doit_prologue();
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virtual void doit();
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virtual void doit_epilogue();
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bool should_retry_gc() const { return _should_retry_gc; }
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bool gc_succeeded() { return _gc_succeeded; }
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};
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// Concurrent G1 stop-the-world operations such as remark and cleanup.
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class VM_G1Concurrent : public VM_Operation {
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VoidClosure* _cl;
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const char* _message;
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uint _gc_id;
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public:
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VM_G1Concurrent(VoidClosure* cl, const char* message) :
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_cl(cl), _message(message), _gc_id(GCId::current()) { }
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virtual VMOp_Type type() const { return VMOp_G1Concurrent; }
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virtual void doit();
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virtual bool doit_prologue();
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virtual void doit_epilogue();
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};
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#endif // SHARE_GC_G1_G1VMOPERATIONS_HPP
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