jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/vm_operations

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp@4f93f0d00802 (annotated)

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp

Tue, 20 Sep 2011 09:59:59 -0400

author: tonyp
date: Tue, 20 Sep 2011 09:59:59 -0400
changeset 3168: 4f93f0d00802
parent 2532: c798c277ddd1
child 3218: db89aa49298f
permissions: -rw-r--r--

7059019: G1: add G1 support to the SA
Summary: Extend the SA to recognize the G1CollectedHeap and implement any code that's needed by our serviceability tools (jmap, jinfo, jstack, etc.) that depend on the SA.
Reviewed-by: never, poonam, johnc

 /*
  * Copyright (c) 2001, 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP
 #define SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP
 #include "gc_implementation/shared/vmGCOperations.hpp"
 // VM_operations for the G1 collector.
 // VM_GC_Operation:
 //   - VM_CGC_Operation
 //   - VM_G1CollectFull
 //   - VM_G1OperationWithAllocRequest
 //     - VM_G1CollectForAllocation
 //     - VM_G1IncCollectionPause
 class VM_G1OperationWithAllocRequest: public VM_GC_Operation {
 protected:
   size_t    _word_size;
   HeapWord* _result;
   bool      _pause_succeeded;
 public:
   VM_G1OperationWithAllocRequest(unsigned int gc_count_before,
                                  size_t       word_size)
     : VM_GC_Operation(gc_count_before, GCCause::_allocation_failure),
       _word_size(word_size), _result(NULL), _pause_succeeded(false) { }
   HeapWord* result() { return _result; }
   bool pause_succeeded() { return _pause_succeeded; }
 };
 class VM_G1CollectFull: public VM_GC_Operation {
 public:
   VM_G1CollectFull(unsigned int gc_count_before,
                    unsigned int full_gc_count_before,
                    GCCause::Cause cause)
     : VM_GC_Operation(gc_count_before, cause, full_gc_count_before) { }
   virtual VMOp_Type type() const { return VMOp_G1CollectFull; }
   virtual void doit();
   virtual const char* name() const {
     return "full garbage-first collection";
   }
 };
 class VM_G1CollectForAllocation: public VM_G1OperationWithAllocRequest {
 public:
   VM_G1CollectForAllocation(unsigned int gc_count_before,
                             size_t       word_size);
   virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; }
   virtual void doit();
   virtual const char* name() const {
     return "garbage-first collection to satisfy allocation";
   }
 };
 class VM_G1IncCollectionPause: public VM_G1OperationWithAllocRequest {
 private:
   bool         _should_initiate_conc_mark;
   double       _target_pause_time_ms;
   unsigned int _full_collections_completed_before;
 public:
   VM_G1IncCollectionPause(unsigned int   gc_count_before,
                           size_t         word_size,
                           bool           should_initiate_conc_mark,
                           double         target_pause_time_ms,
                           GCCause::Cause gc_cause);
   virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; }
   virtual void doit();
   virtual void doit_epilogue();
   virtual const char* name() const {
     return "garbage-first incremental collection pause";
   }
 };
 // Concurrent GC stop-the-world operations such as initial and final mark;
 // consider sharing these with CMS's counterparts.
 class VM_CGC_Operation: public VM_Operation {
   VoidClosure* _cl;
   const char* _printGCMessage;
 public:
   VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg)
     : _cl(cl), _printGCMessage(printGCMsg) { }
   virtual VMOp_Type type() const { return VMOp_CGC_Operation; }
   virtual void doit();
   virtual bool doit_prologue();
   virtual void doit_epilogue();
   virtual const char* name() const {
     return "concurrent gc";
   }
 };
 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp@4f93f0d00802 (annotated)

src/share/vm/gc_implementation/g1/vm_operations_g1.hpp