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src/java.base/windows/classes/sun/nio/ch/FileDispatcherImpl.java

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  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
  23  * questions.
  24  */
  25 
  26 package sun.nio.ch;
  27 
  28 import java.io.FileDescriptor;
  29 import java.io.IOException;
  30 import jdk.internal.misc.SharedSecrets;
  31 import jdk.internal.misc.JavaIOFileDescriptorAccess;
  32 import sun.security.action.GetPropertyAction;
  33 import java.io.File;
  34 import java.nio.CharBuffer;
  35 
  36 class FileDispatcherImpl extends FileDispatcher {
  37 
  38     private static final JavaIOFileDescriptorAccess fdAccess =
  39         SharedSecrets.getJavaIOFileDescriptorAccess();
  40 
  41     // set to true if fast file transmission (TransmitFile) is enabled
  42     private static final boolean fastFileTransfer;
  43 
  44     FileDispatcherImpl() { }
  45 
  46     @Override
  47     boolean needsPositionLock() {
  48         return true;
  49     }
  50 
  51     int read(FileDescriptor fd, long address, int len)




  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
  23  * questions.
  24  */
  25 
  26 package sun.nio.ch;
  27 
  28 import java.io.FileDescriptor;
  29 import java.io.IOException;
  30 import jdk.internal.access.SharedSecrets;
  31 import jdk.internal.access.JavaIOFileDescriptorAccess;
  32 import sun.security.action.GetPropertyAction;
  33 import java.io.File;
  34 import java.nio.CharBuffer;
  35 
  36 class FileDispatcherImpl extends FileDispatcher {
  37 
  38     private static final JavaIOFileDescriptorAccess fdAccess =
  39         SharedSecrets.getJavaIOFileDescriptorAccess();
  40 
  41     // set to true if fast file transmission (TransmitFile) is enabled
  42     private static final boolean fastFileTransfer;
  43 
  44     FileDispatcherImpl() { }
  45 
  46     @Override
  47     boolean needsPositionLock() {
  48         return true;
  49     }
  50 
  51     int read(FileDescriptor fd, long address, int len)


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