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src/java.desktop/share/classes/sun/java2d/marlin/OffHeapArray.java

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   1 /*
   2  * Copyright (c) 2007, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  72      */
  73     void resize(final long len) {
  74         // note: may throw OOME:
  75         this.address = UNSAFE.reallocateMemory(address, len);
  76         this.length  = len;
  77         if (LOG_UNSAFE_MALLOC) {
  78             MarlinUtils.logInfo(System.currentTimeMillis()
  79                                 + ": OffHeapArray.reallocateMemory = "
  80                                 + len + " to addr = " + this.address);
  81         }
  82     }
  83 
  84     void free() {
  85         UNSAFE.freeMemory(this.address);
  86         if (LOG_UNSAFE_MALLOC) {
  87             MarlinUtils.logInfo(System.currentTimeMillis()
  88                                 + ": OffHeapArray.freeMemory =       "
  89                                 + this.length
  90                                 + " at addr = " + this.address);
  91         }

  92     }
  93 
  94     void fill(final byte val) {
  95         UNSAFE.setMemory(this.address, this.length, val);
  96     }
  97 }
   1 /*
   2  * Copyright (c) 2007, 2017, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


  72      */
  73     void resize(final long len) {
  74         // note: may throw OOME:
  75         this.address = UNSAFE.reallocateMemory(address, len);
  76         this.length  = len;
  77         if (LOG_UNSAFE_MALLOC) {
  78             MarlinUtils.logInfo(System.currentTimeMillis()
  79                                 + ": OffHeapArray.reallocateMemory = "
  80                                 + len + " to addr = " + this.address);
  81         }
  82     }
  83 
  84     void free() {
  85         UNSAFE.freeMemory(this.address);
  86         if (LOG_UNSAFE_MALLOC) {
  87             MarlinUtils.logInfo(System.currentTimeMillis()
  88                                 + ": OffHeapArray.freeMemory =       "
  89                                 + this.length
  90                                 + " at addr = " + this.address);
  91         }
  92         this.address = 0L;
  93     }
  94 
  95     void fill(final byte val) {
  96         UNSAFE.setMemory(this.address, this.length, val);
  97     }
  98 }
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