1 /*
2 * Copyright (c) 1994, 2019, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
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
225 * after setting this thread's interrupt status.
226 */
227 private volatile Interruptible blocker;
228 private final Object blockerLock = new Object();
229
230 /* Set the blocker field; invoked via jdk.internal.access.SharedSecrets
231 * from java.nio code
232 */
233 static void blockedOn(Interruptible b) {
234 Thread me = Thread.currentThread();
235 synchronized (me.blockerLock) {
236 me.blocker = b;
237 }
238 }
239
240 /**
241 * The minimum priority that a thread can have.
242 */
243 public static final int MIN_PRIORITY = 1;
244
245 /**
246 * The default priority that is assigned to a thread.
247 */
248 public static final int NORM_PRIORITY = 5;
249
250 /**
251 * The maximum priority that a thread can have.
252 */
253 public static final int MAX_PRIORITY = 10;
254
255 /**
256 * Returns a reference to the currently executing thread object.
257 *
258 * @return the currently executing thread.
259 */
260 @HotSpotIntrinsicCandidate
261 public static native Thread currentThread();
262
263 /**
264 * A hint to the scheduler that the current thread is willing to yield
265 * its current use of a processor. The scheduler is free to ignore this
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1 /*
2 * Copyright (c) 1994, 2020, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
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
225 * after setting this thread's interrupt status.
226 */
227 private volatile Interruptible blocker;
228 private final Object blockerLock = new Object();
229
230 /* Set the blocker field; invoked via jdk.internal.access.SharedSecrets
231 * from java.nio code
232 */
233 static void blockedOn(Interruptible b) {
234 Thread me = Thread.currentThread();
235 synchronized (me.blockerLock) {
236 me.blocker = b;
237 }
238 }
239
240 /**
241 * The minimum priority that a thread can have.
242 */
243 public static final int MIN_PRIORITY = 1;
244
245 /**
246 * The default priority that is assigned to a thread.
247 */
248 public static final int NORM_PRIORITY = 5;
249
250 /**
251 * The maximum priority that a thread can have.
252 */
253 public static final int MAX_PRIORITY = 10;
254
255 /**
256 * Returns a reference to the currently executing thread object.
257 *
258 * @return the currently executing thread.
259 */
260 @HotSpotIntrinsicCandidate
261 public static native Thread currentThread();
262
263 /**
264 * A hint to the scheduler that the current thread is willing to yield
265 * its current use of a processor. The scheduler is free to ignore this
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