1 /*
   2  * Copyright (c) 1997, 2009, 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  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_symbolTable.cpp.incl"










  27 
  28 // --------------------------------------------------------------------------
  29 
  30 SymbolTable* SymbolTable::_the_table = NULL;
  31 
  32 // Lookup a symbol in a bucket.
  33 
  34 symbolOop SymbolTable::lookup(int index, const char* name,
  35                               int len, unsigned int hash) {
  36   for (HashtableEntry* e = bucket(index); e != NULL; e = e->next()) {
  37     if (e->hash() == hash) {
  38       symbolOop sym = symbolOop(e->literal());
  39       if (sym->equals(name, len)) {
  40         return sym;
  41       }
  42     }
  43   }
  44   return NULL;
  45 }
  46 

   1 /*
   2  * Copyright (c) 1997, 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  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/javaClasses.hpp"
  27 #include "classfile/symbolTable.hpp"
  28 #include "classfile/systemDictionary.hpp"
  29 #include "gc_interface/collectedHeap.inline.hpp"
  30 #include "memory/filemap.hpp"
  31 #include "memory/gcLocker.inline.hpp"
  32 #include "oops/oop.inline.hpp"
  33 #include "oops/oop.inline2.hpp"
  34 #include "oops/symbolKlass.hpp"
  35 #include "runtime/mutexLocker.hpp"
  36 #include "utilities/hashtable.inline.hpp"
  37 
  38 // --------------------------------------------------------------------------
  39 
  40 SymbolTable* SymbolTable::_the_table = NULL;
  41 
  42 // Lookup a symbol in a bucket.
  43 
  44 symbolOop SymbolTable::lookup(int index, const char* name,
  45                               int len, unsigned int hash) {
  46   for (HashtableEntry* e = bucket(index); e != NULL; e = e->next()) {
  47     if (e->hash() == hash) {
  48       symbolOop sym = symbolOop(e->literal());
  49       if (sym->equals(name, len)) {
  50         return sym;
  51       }
  52     }
  53   }
  54   return NULL;
  55 }
  56