diff options
| -rw-r--r-- | src/java/com/jogamp/common/util/locks/Lock.java | 6 | ||||
| -rw-r--r-- | src/java/com/jogamp/common/util/locks/RecursiveLock.java | 52 |
2 files changed, 55 insertions, 3 deletions
diff --git a/src/java/com/jogamp/common/util/locks/Lock.java b/src/java/com/jogamp/common/util/locks/Lock.java index ad379ef..41c5a14 100644 --- a/src/java/com/jogamp/common/util/locks/Lock.java +++ b/src/java/com/jogamp/common/util/locks/Lock.java @@ -59,14 +59,14 @@ public interface Lock { /** * Blocking until the lock is acquired by this Thread or <code>maxwait</code> in ms is reached. * - * @param maxwait Maximum time in ms to wait to acquire the lock. If this value is zero, + * @param timeout Maximum time in ms to wait to acquire the lock. If this value is zero, * the call returns immediately either without being able * to acquire the lock, or with acquiring the lock directly while ignoring any scheduling order. * @return true if the lock has been acquired within <code>maxwait</code>, otherwise false * - * @throws RuntimeException in case of {@link #TIMEOUT} + * @throws InterruptedException */ - boolean tryLock(long maxwait) throws RuntimeException; + boolean tryLock(long timeout) throws InterruptedException; /** * Unblocking. diff --git a/src/java/com/jogamp/common/util/locks/RecursiveLock.java b/src/java/com/jogamp/common/util/locks/RecursiveLock.java new file mode 100644 index 0000000..77d7534 --- /dev/null +++ b/src/java/com/jogamp/common/util/locks/RecursiveLock.java @@ -0,0 +1,52 @@ +/** + * Copyright 2010 JogAmp Community. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, are + * permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this list of + * conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, this list + * of conditions and the following disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * The views and conclusions contained in the software and documentation are those of the + * authors and should not be interpreted as representing official policies, either expressed + * or implied, of JogAmp Community. + */ + +package com.jogamp.common.util.locks; + +import jogamp.common.Debug; +import java.security.AccessController; + +import java.util.LinkedList; + +/** + * Reentrance locking toolkit, impl a complete fair FIFO scheduler + */ +public interface RecursiveLock extends LockExt { + + public static final boolean TRACE_LOCK = Debug.isPropertyDefined("jogamp.debug.Lock.TraceLock", true, AccessController.getContext()); + + /** Return the number of locks issued to this lock by the same thread. + * A hold count of 0 identifies this lock as unlocked.<br> + * A hold count of 1 identifies this lock as locked.<br> + * A hold count of > 1 identifies this lock as recursively lock.<br> + */ + int getHoldCount(); + + int getQueueLength(); +} + |