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

Tue, 23 Nov 2010 13:22:55 -0800

author
stefank
date
Tue, 23 Nov 2010 13:22:55 -0800
changeset 2314
f95d63e2154a
parent 2011
4e5661ba9d98
child 2315
631f79e71e90
permissions
-rw-r--r--

6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg

     1 /*
     2  * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP
    26 #define SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP
    28 #include "gc_implementation/shared/vmGCOperations.hpp"
    30 // VM_operations for the G1 collector.
    31 // VM_GC_Operation:
    32 //   - VM_CGC_Operation
    33 //   - VM_G1CollectFull
    34 //   - VM_G1CollectForAllocation
    35 //   - VM_G1IncCollectionPause
    36 //   - VM_G1PopRegionCollectionPause
    38 class VM_G1CollectFull: public VM_GC_Operation {
    39  public:
    40   VM_G1CollectFull(unsigned int gc_count_before,
    41                    unsigned int full_gc_count_before,
    42                    GCCause::Cause cause)
    43     : VM_GC_Operation(gc_count_before, full_gc_count_before) {
    44     _gc_cause = cause;
    45   }
    46   ~VM_G1CollectFull() {}
    47   virtual VMOp_Type type() const { return VMOp_G1CollectFull; }
    48   virtual void doit();
    49   virtual const char* name() const {
    50     return "full garbage-first collection";
    51   }
    52 };
    54 class VM_G1CollectForAllocation: public VM_GC_Operation {
    55  private:
    56   HeapWord*   _res;
    57   size_t      _size;                       // size of object to be allocated
    58  public:
    59   VM_G1CollectForAllocation(size_t size, int gc_count_before)
    60     : VM_GC_Operation(gc_count_before) {
    61     _size        = size;
    62     _res         = NULL;
    63   }
    64   ~VM_G1CollectForAllocation()        {}
    65   virtual VMOp_Type type() const { return VMOp_G1CollectForAllocation; }
    66   virtual void doit();
    67   virtual const char* name() const {
    68     return "garbage-first collection to satisfy allocation";
    69   }
    70   HeapWord* result() { return _res; }
    71 };
    73 class VM_G1IncCollectionPause: public VM_GC_Operation {
    74 private:
    75   bool _should_initiate_conc_mark;
    76   double _target_pause_time_ms;
    77   unsigned int _full_collections_completed_before;
    78 public:
    79   VM_G1IncCollectionPause(unsigned int   gc_count_before,
    80                           bool           should_initiate_conc_mark,
    81                           double         target_pause_time_ms,
    82                           GCCause::Cause cause)
    83     : VM_GC_Operation(gc_count_before),
    84       _full_collections_completed_before(0),
    85       _should_initiate_conc_mark(should_initiate_conc_mark),
    86       _target_pause_time_ms(target_pause_time_ms) {
    87     guarantee(target_pause_time_ms > 0.0,
    88               err_msg("target_pause_time_ms = %1.6lf should be positive",
    89                       target_pause_time_ms));
    91     _gc_cause = cause;
    92   }
    93   virtual VMOp_Type type() const { return VMOp_G1IncCollectionPause; }
    94   virtual void doit();
    95   virtual void doit_epilogue();
    96   virtual const char* name() const {
    97     return "garbage-first incremental collection pause";
    98   }
    99 };
   101 // Concurrent GC stop-the-world operations such as initial and final mark;
   102 // consider sharing these with CMS's counterparts.
   103 class VM_CGC_Operation: public VM_Operation {
   104   VoidClosure* _cl;
   105   const char* _printGCMessage;
   106  public:
   107   VM_CGC_Operation(VoidClosure* cl, const char *printGCMsg) :
   108     _cl(cl),
   109     _printGCMessage(printGCMsg)
   110     {}
   112   ~VM_CGC_Operation() {}
   114   virtual VMOp_Type type() const { return VMOp_CGC_Operation; }
   115   virtual void doit();
   116   virtual bool doit_prologue();
   117   virtual void doit_epilogue();
   118   virtual const char* name() const {
   119     return "concurrent gc";
   120   }
   121 };
   123 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_VM_OPERATIONS_G1_HPP

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