author | kbarrett |
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/* |
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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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||
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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() const { return _gc_succeeded; } |
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}; |
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class VM_G1TryInitiateConcMark : public VM_GC_Operation { |
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double _target_pause_time_ms; |
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bool _transient_failure; |
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bool _cycle_already_in_progress; |
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bool _gc_succeeded; |
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public: |
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VM_G1TryInitiateConcMark(uint gc_count_before, |
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GCCause::Cause gc_cause, |
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double target_pause_time_ms); |
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virtual VMOp_Type type() const { return VMOp_G1TryInitiateConcMark; } |
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virtual bool doit_prologue(); |
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virtual void doit(); |
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bool transient_failure() const { return _transient_failure; } |
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bool cycle_already_in_progress() const { return _cycle_already_in_progress; } |
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bool gc_succeeded() const { 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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double _target_pause_time_ms; |
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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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double target_pause_time_ms); |
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virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; } |
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virtual void doit(); |
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bool gc_succeeded() const { 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 |