ysr@777: /*
brutisso@2532:  * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved.
ysr@777:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ysr@777:  *
ysr@777:  * This code is free software; you can redistribute it and/or modify it
ysr@777:  * under the terms of the GNU General Public License version 2 only, as
ysr@777:  * published by the Free Software Foundation.
ysr@777:  *
ysr@777:  * This code is distributed in the hope that it will be useful, but WITHOUT
ysr@777:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ysr@777:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ysr@777:  * version 2 for more details (a copy is included in the LICENSE file that
ysr@777:  * accompanied this code).
ysr@777:  *
ysr@777:  * You should have received a copy of the GNU General Public License version
ysr@777:  * 2 along with this work; if not, write to the Free Software Foundation,
ysr@777:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ysr@777:  *
trims@1907:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907:  * or visit www.oracle.com if you need additional information or have any
trims@1907:  * questions.
ysr@777:  *
ysr@777:  */
ysr@777: 
stefank@2314: #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP
stefank@2314: #define SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP
stefank@2314: 
stefank@2314: #include "gc_implementation/shared/vmGCOperations.hpp"
stefank@2314: 
ysr@777: // VM_operations for the G1 collector.
ysr@777: // VM_GC_Operation:
ysr@777: //   - VM_CGC_Operation
ysr@777: //   - VM_G1CollectFull
tonyp@2315: //   - VM_G1OperationWithAllocRequest
tonyp@2315: //     - VM_G1CollectForAllocation
tonyp@2315: //     - VM_G1IncCollectionPause
tonyp@2315: 
tonyp@2315: class VM_G1OperationWithAllocRequest: public VM_GC_Operation {
tonyp@2315: protected:
tonyp@2315:   size_t    _word_size;
tonyp@2315:   HeapWord* _result;
tonyp@2315:   bool      _pause_succeeded;
tonyp@2315: 
tonyp@2315: public:
tonyp@2315:   VM_G1OperationWithAllocRequest(unsigned int gc_count_before,
tonyp@2315:                                  size_t       word_size)
brutisso@2532:     : VM_GC_Operation(gc_count_before, GCCause::_allocation_failure),
tonyp@2315:       _word_size(word_size), _result(NULL), _pause_succeeded(false) { }
tonyp@2315:   HeapWord* result() { return _result; }
tonyp@2315:   bool pause_succeeded() { return _pause_succeeded; }
tonyp@2315: };
ysr@777: 
ysr@777: class VM_G1CollectFull: public VM_GC_Operation {
tonyp@2315: public:
tonyp@2011:   VM_G1CollectFull(unsigned int gc_count_before,
tonyp@2011:                    unsigned int full_gc_count_before,
tonyp@2011:                    GCCause::Cause cause)
brutisso@2532:     : VM_GC_Operation(gc_count_before, cause, full_gc_count_before) { }
ysr@777:   virtual VMOp_Type type() const { return VMOp_G1CollectFull; }
ysr@777:   virtual void doit();
ysr@777:   virtual const char* name() const {
ysr@777:     return "full garbage-first collection";
ysr@777:   }
ysr@777: };
ysr@777: 
tonyp@2315: class VM_G1CollectForAllocation: public VM_G1OperationWithAllocRequest {
tonyp@2315: public:
tonyp@2315:   VM_G1CollectForAllocation(unsigned int gc_count_before,
tonyp@2315:                             size_t       word_size);
ysr@777:   virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; }
ysr@777:   virtual void doit();
ysr@777:   virtual const char* name() const {
ysr@777:     return "garbage-first collection to satisfy allocation";
ysr@777:   }
ysr@777: };
ysr@777: 
tonyp@2315: class VM_G1IncCollectionPause: public VM_G1OperationWithAllocRequest {
tonyp@2011: private:
tonyp@2315:   bool         _should_initiate_conc_mark;
tonyp@2315:   double       _target_pause_time_ms;
tonyp@2011:   unsigned int _full_collections_completed_before;
tonyp@2011: public:
tonyp@2011:   VM_G1IncCollectionPause(unsigned int   gc_count_before,
tonyp@2315:                           size_t         word_size,
tonyp@2011:                           bool           should_initiate_conc_mark,
tonyp@2011:                           double         target_pause_time_ms,
tonyp@2315:                           GCCause::Cause gc_cause);
ysr@777:   virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; }
ysr@777:   virtual void doit();
tonyp@2011:   virtual void doit_epilogue();
ysr@777:   virtual const char* name() const {
ysr@777:     return "garbage-first incremental collection pause";
ysr@777:   }
ysr@777: };
ysr@777: 
ysr@777: // Concurrent GC stop-the-world operations such as initial and final mark;
ysr@777: // consider sharing these with CMS's counterparts.
ysr@777: class VM_CGC_Operation: public VM_Operation {
ysr@777:   VoidClosure* _cl;
ysr@777:   const char* _printGCMessage;
tonyp@2315: public:
tonyp@2315:   VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg)
tonyp@2315:     : _cl(cl), _printGCMessage(printGCMsg) { }
ysr@777:   virtual VMOp_Type type() const { return VMOp_CGC_Operation; }
ysr@777:   virtual void doit();
ysr@777:   virtual bool doit_prologue();
ysr@777:   virtual void doit_epilogue();
ysr@777:   virtual const char* name() const {
ysr@777:     return "concurrent gc";
ysr@777:   }
ysr@777: };
stefank@2314: 
stefank@2314: #endif // SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP