src/java.base/linux/classes/sun/nio/fs/LinuxUserDefinedFileAttributeView.java

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rev 12972 : 8140606: Update library code to use internal Unsafe
Reviewed-by: duke


  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
  23  * questions.
  24  */
  25 
  26 package sun.nio.fs;
  27 
  28 import java.nio.file.*;
  29 import java.nio.ByteBuffer;
  30 import java.io.IOException;
  31 import java.util.*;
  32 import sun.misc.Unsafe;
  33 
  34 import static sun.nio.fs.UnixConstants.*;
  35 import static sun.nio.fs.LinuxNativeDispatcher.*;
  36 
  37 /**
  38  * Linux implementation of UserDefinedFileAttributeView using extended attributes.
  39  */
  40 
  41 class LinuxUserDefinedFileAttributeView
  42     extends AbstractUserDefinedFileAttributeView
  43 {
  44     private static final Unsafe unsafe = Unsafe.getUnsafe();
  45 
  46     // namespace for extended user attributes
  47     private static final String USER_NAMESPACE = "user.";
  48 
  49     // maximum bytes in extended attribute name (includes namespace)
  50     private static final int XATTR_NAME_MAX = 255;
  51 
  52     private byte[] nameAsBytes(UnixPath file, String name) throws IOException {




  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
  23  * questions.
  24  */
  25 
  26 package sun.nio.fs;
  27 
  28 import java.nio.file.*;
  29 import java.nio.ByteBuffer;
  30 import java.io.IOException;
  31 import java.util.*;
  32 import jdk.internal.misc.Unsafe;
  33 
  34 import static sun.nio.fs.UnixConstants.*;
  35 import static sun.nio.fs.LinuxNativeDispatcher.*;
  36 
  37 /**
  38  * Linux implementation of UserDefinedFileAttributeView using extended attributes.
  39  */
  40 
  41 class LinuxUserDefinedFileAttributeView
  42     extends AbstractUserDefinedFileAttributeView
  43 {
  44     private static final Unsafe unsafe = Unsafe.getUnsafe();
  45 
  46     // namespace for extended user attributes
  47     private static final String USER_NAMESPACE = "user.";
  48 
  49     // maximum bytes in extended attribute name (includes namespace)
  50     private static final int XATTR_NAME_MAX = 255;
  51 
  52     private byte[] nameAsBytes(UnixPath file, String name) throws IOException {