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src/java.base/share/classes/java/net/SocketCleanable.java

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rev 51958 : 8211122: Reduce the number of internal classes made accessible to jdk.unsupported
Reviewed-by: alanb, dfuchs, kvn


   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
  23  * questions.
  24  */
  25 package java.net;
  26 
  27 import jdk.internal.misc.JavaIOFileDescriptorAccess;
  28 import jdk.internal.misc.SharedSecrets;
  29 import jdk.internal.ref.CleanerFactory;
  30 import jdk.internal.ref.PhantomCleanable;
  31 
  32 import java.io.FileDescriptor;
  33 import java.io.IOException;
  34 import java.io.UncheckedIOException;
  35 import java.lang.ref.Cleaner;
  36 
  37 
  38 /**
  39  * Cleanable for a socket/datagramsocket FileDescriptor when it becomes phantom reachable.
  40  * Create a cleanup if the raw fd != -1. Windows closes sockets using the fd.
  41  * Subclassed from {@code PhantomCleanable} so that {@code clear} can be
  42  * called to disable the cleanup when the socket fd is closed by any means
  43  * other than calling {@link FileDescriptor#close}.
  44  * Otherwise, it might incorrectly close the handle or fd after it has been reused.
  45  */
  46 final class SocketCleanable extends PhantomCleanable<FileDescriptor> {
  47 
  48     // Access to FileDescriptor private fields




   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
  23  * questions.
  24  */
  25 package java.net;
  26 
  27 import jdk.internal.access.JavaIOFileDescriptorAccess;
  28 import jdk.internal.access.SharedSecrets;
  29 import jdk.internal.ref.CleanerFactory;
  30 import jdk.internal.ref.PhantomCleanable;
  31 
  32 import java.io.FileDescriptor;
  33 import java.io.IOException;
  34 import java.io.UncheckedIOException;
  35 import java.lang.ref.Cleaner;
  36 
  37 
  38 /**
  39  * Cleanable for a socket/datagramsocket FileDescriptor when it becomes phantom reachable.
  40  * Create a cleanup if the raw fd != -1. Windows closes sockets using the fd.
  41  * Subclassed from {@code PhantomCleanable} so that {@code clear} can be
  42  * called to disable the cleanup when the socket fd is closed by any means
  43  * other than calling {@link FileDescriptor#close}.
  44  * Otherwise, it might incorrectly close the handle or fd after it has been reused.
  45  */
  46 final class SocketCleanable extends PhantomCleanable<FileDescriptor> {
  47 
  48     // Access to FileDescriptor private fields


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