src/java.base/linux/classes/sun/nio/ch/EPoll.java

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


   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 
  26 package sun.nio.ch;
  27 
  28 import java.io.IOException;
  29 import sun.misc.Unsafe;
  30 
  31 /**
  32  * Provides access to the Linux epoll facility.
  33  */
  34 
  35 class EPoll {
  36     private EPoll() { }
  37 
  38     private static final Unsafe unsafe = Unsafe.getUnsafe();
  39 
  40     /**
  41      * typedef union epoll_data {
  42      *     void *ptr;
  43      *     int fd;
  44      *     __uint32_t u32;
  45      *     __uint64_t u64;
  46      *  } epoll_data_t;
  47      *
  48      * struct epoll_event {
  49      *     __uint32_t events;




   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 
  26 package sun.nio.ch;
  27 
  28 import java.io.IOException;
  29 import jdk.internal.misc.Unsafe;
  30 
  31 /**
  32  * Provides access to the Linux epoll facility.
  33  */
  34 
  35 class EPoll {
  36     private EPoll() { }
  37 
  38     private static final Unsafe unsafe = Unsafe.getUnsafe();
  39 
  40     /**
  41      * typedef union epoll_data {
  42      *     void *ptr;
  43      *     int fd;
  44      *     __uint32_t u32;
  45      *     __uint64_t u64;
  46      *  } epoll_data_t;
  47      *
  48      * struct epoll_event {
  49      *     __uint32_t events;