1 /*
   2  * Copyright (c) 2015, 2016, 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  *

 102       if (sym.equals(name)) {
 103         return sym;
 104       }
 105     } else {
 106       Address entryMax = entriesField.getValue(addr).addOffsetTo(nextBucketOffset * uintSize);
 107       while (entry.lessThan(entryMax)) {
 108         long symHash = entry.getCIntegerAt(0, uintSize, true);
 109         if (symHash == hash) {
 110           symOffset = entry.getCIntegerAt(uintSize, uintSize, true);
 111           Address symAddr = baseAddress.addOffsetTo(symOffset);
 112           sym = Symbol.create(symAddr);
 113           if (sym.equals(name)) {
 114             return sym;
 115           }
 116         }
 117         entry = entry.addOffsetTo(2 * uintSize);
 118       }
 119     }
 120     return null;
 121   }


































 122 }

   1 /*
   2  * Copyright (c) 2015, 2018, 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  *

 102       if (sym.equals(name)) {
 103         return sym;
 104       }
 105     } else {
 106       Address entryMax = entriesField.getValue(addr).addOffsetTo(nextBucketOffset * uintSize);
 107       while (entry.lessThan(entryMax)) {
 108         long symHash = entry.getCIntegerAt(0, uintSize, true);
 109         if (symHash == hash) {
 110           symOffset = entry.getCIntegerAt(uintSize, uintSize, true);
 111           Address symAddr = baseAddress.addOffsetTo(symOffset);
 112           sym = Symbol.create(symAddr);
 113           if (sym.equals(name)) {
 114             return sym;
 115           }
 116         }
 117         entry = entry.addOffsetTo(2 * uintSize);
 118       }
 119     }
 120     return null;
 121   }
 122 
 123   public interface SymbolVisitor {
 124     public void visit(Symbol sym);
 125   }
 126 
 127   public void symbolsDo(SymbolVisitor visitor) {
 128     long    symOffset;
 129     Symbol  sym;
 130     Address baseAddress = baseAddressField.getValue(addr);
 131     Address bucket = bucketsField.getValue(addr);
 132     for (long index = 0; index < bucketCount(); index++) {
 133       int bucketInfo = (int)bucket.getCIntegerAt(index * uintSize, uintSize, true);
 134       int bucketOffset = bucketOffset(bucketInfo);
 135       int nextBucketInfo = (int)bucket.getCIntegerAt((index+1) * uintSize, uintSize, true);
 136       int nextBucketOffset = bucketOffset(nextBucketInfo);
 137 
 138       Address entry = entriesField.getValue(addr).addOffsetTo(bucketOffset * uintSize);
 139 
 140       if (isValueOnlyBucket(bucketInfo)) {
 141         symOffset = entry.getCIntegerAt(0, uintSize, true);
 142         sym = Symbol.create(baseAddress.addOffsetTo(symOffset));
 143         visitor.visit(sym);
 144       } else {
 145         Address entryMax = entriesField.getValue(addr).addOffsetTo(nextBucketOffset * uintSize);
 146         while (entry.lessThan(entryMax)) {
 147           symOffset = entry.getCIntegerAt(uintSize, uintSize, true);
 148           Address symAddr = baseAddress.addOffsetTo(symOffset);
 149           sym = Symbol.create(symAddr);
 150           visitor.visit(sym);
 151           entry = entry.addOffsetTo(2 * uintSize);
 152         }
 153       }
 154     }
 155   }
 156 }
 157