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.nio.channels.*;
29 import java.util.*;
30 import sun.misc.Unsafe;
31
32 /**
33 * Maintains a mapping of pending I/O requests (identified by the address of
34 * an OVERLAPPED structure) to Futures.
35 */
36
37 class PendingIoCache {
38 private static final Unsafe unsafe = Unsafe.getUnsafe();
39 private static final int addressSize = unsafe.addressSize();
40
41 private static int dependsArch(int value32, int value64) {
42 return (addressSize == 4) ? value32 : value64;
43 }
44
45 /*
46 * typedef struct _OVERLAPPED {
47 * DWORD Internal;
48 * DWORD InternalHigh;
49 * DWORD Offset;
50 * DWORD OffsetHigh;
|
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.nio.channels.*;
29 import java.util.*;
30 import jdk.internal.misc.Unsafe;
31
32 /**
33 * Maintains a mapping of pending I/O requests (identified by the address of
34 * an OVERLAPPED structure) to Futures.
35 */
36
37 class PendingIoCache {
38 private static final Unsafe unsafe = Unsafe.getUnsafe();
39 private static final int addressSize = unsafe.addressSize();
40
41 private static int dependsArch(int value32, int value64) {
42 return (addressSize == 4) ? value32 : value64;
43 }
44
45 /*
46 * typedef struct _OVERLAPPED {
47 * DWORD Internal;
48 * DWORD InternalHigh;
49 * DWORD Offset;
50 * DWORD OffsetHigh;
|