[jbosscache-commits] JBoss Cache SVN: r7923 - in core/trunk/src/main: java/org/jboss/cache/lock and 1 other directories.

Author: manik.surtani(a)jboss.com Date: 2009-03-19 06:28:45 -0400 (Thu, 19 Mar 2009) New Revision: 7923 Modified: core/trunk/src/main/docbook/userguide/en/modules/configuration_reference.xml core/trunk/src/main/java/org/jboss/cache/lock/MVCCLockManager.java core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementLockContainer.java core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementOwnableReentrantLockContainer.java core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementReentrantLockContainer.java Log: JBCACHE-1494 - concurrencyLevel to affect the non-striped lock container as well Modified: core/trunk/src/main/docbook/userguide/en/modules/configuration_reference.xml =================================================================== --- core/trunk/src/main/docbook/userguide/en/modules/configuration_reference.xml 2009-03-19 10:20:25 UTC (rev 7922) +++ core/trunk/src/main/docbook/userguide/en/modules/configuration_reference.xml 2009-03-19 10:28:45 UTC (rev 7923) @@ -498,7 +498,7 @@ <entry>500</entry> <entry>Specifies the number of shared locks to use for write locks acquired. Only used if <literal>nodeLockingScheme</literal> - is <literal>mvcc</literal>, and is ignored if <literal>useLockStriping</literal> is <literal>false</literal>. + is <literal>mvcc</literal>. See the <link linkend="mvcc.impl">section on JBoss Cache's MVCC implementation</link> for a more detailed discussion.</entry> </row> </tbody> Modified: core/trunk/src/main/java/org/jboss/cache/lock/MVCCLockManager.java =================================================================== --- core/trunk/src/main/java/org/jboss/cache/lock/MVCCLockManager.java 2009-03-19 10:20:25 UTC (rev 7922) +++ core/trunk/src/main/java/org/jboss/cache/lock/MVCCLockManager.java 2009-03-19 10:28:45 UTC (rev 7923) @@ -93,10 +93,13 @@ @Start public void startLockManager() { + // don't we all love nested ternary operators? :-) lockContainer = configuration.isUseLockStriping() ? - transactionManager == null ? new ReentrantSharedLockContainer<Fqn>(configuration.getConcurrencyLevel()) : new OwnableReentrantSharedLockContainer<Fqn>(configuration.getConcurrencyLevel(), invocationContextContainer) : - transactionManager == null ? new PerElementReentrantLockContainer<Fqn>() : new PerElementOwnableReentrantLockContainer<Fqn>(invocationContextContainer); + transactionManager == null ? new ReentrantSharedLockContainer<Fqn>(configuration.getConcurrencyLevel()) : + new OwnableReentrantSharedLockContainer<Fqn>(configuration.getConcurrencyLevel(), invocationContextContainer) : + transactionManager == null ? new PerElementReentrantLockContainer<Fqn>(configuration.getConcurrencyLevel()) : + new PerElementOwnableReentrantLockContainer<Fqn>(configuration.getConcurrencyLevel(), invocationContextContainer); } @Start @@ -107,7 +110,7 @@ public boolean lock(Fqn fqn, LockType lockType, Object owner) throws InterruptedException { - if (lockType == READ) return true; // we don't support read locks. TODO: enforce this with an assertion + if (lockType == READ) return true; // we don't support read locks. if (trace) log.trace("Attempting to lock " + fqn); return lockContainer.acquireLock(fqn, lockAcquisitionTimeout, MILLISECONDS); @@ -115,7 +118,7 @@ public boolean lock(Fqn fqn, LockType lockType, Object owner, long timeoutMillis) throws InterruptedException { - if (lockType == READ) return true; // we don't support read locks. TODO: enforce this with an assertion + if (lockType == READ) return true; // we don't support read locks. if (trace) log.trace("Attempting to lock " + fqn); return lockContainer.acquireLock(fqn, lockAcquisitionTimeout, MILLISECONDS); @@ -123,7 +126,7 @@ public boolean lockAndRecord(Fqn fqn, LockType lockType, InvocationContext ctx) throws InterruptedException { - if (lockType == READ) return true; // we don't support read locks. TODO: enforce this with an assertion + if (lockType == READ) return true; // we don't support read locks. if (trace) log.trace("Attempting to lock " + fqn); if (lockContainer.acquireLock(fqn, lockAcquisitionTimeout, MILLISECONDS)) @@ -220,25 +223,25 @@ public boolean lockAll(NodeSPI node, LockType lockType, Object owner) throws InterruptedException { - if (lockType == READ) return true; // we don't support read locks. TODO: enforce this with an assertion + if (lockType == READ) return true; // we don't support read locks. return lockRecursively(node.getDelegationTarget(), lockAcquisitionTimeout, false, null); } public boolean lockAll(NodeSPI node, LockType lockType, Object owner, long timeout) throws InterruptedException { - if (lockType == READ) return true; // we don't support read locks. TODO: enforce this with an assertion + if (lockType == READ) return true; // we don't support read locks. return lockRecursively(node.getDelegationTarget(), timeout, false, null); } public boolean lockAll(NodeSPI node, LockType lockType, Object owner, long timeout, boolean excludeInternalFqns) throws InterruptedException { - if (lockType == READ) return true; // we don't support read locks. TODO: enforce this with an assertion + if (lockType == READ) return true; // we don't support read locks. return lockRecursively(node.getDelegationTarget(), timeout, excludeInternalFqns, null); } public boolean lockAllAndRecord(NodeSPI node, LockType lockType, InvocationContext ctx) throws InterruptedException { - if (lockType == READ) return true; // we don't support read locks. TODO: enforce this with an assertion + if (lockType == READ) return true; // we don't support read locks. return lockRecursively(node.getDelegationTarget(), ctx.getLockAcquisitionTimeout(lockAcquisitionTimeout), false, ctx); } @@ -265,7 +268,7 @@ public boolean ownsLock(Fqn fqn, LockType lockType, Object owner) { - if (lockType == READ) return false; // we don't support read locks. TODO: enforce this with an assertion + if (lockType == READ) return false; // we don't support read locks. return lockContainer.ownsLock(fqn, owner); } @@ -281,7 +284,7 @@ public boolean isLocked(NodeSPI n, LockType lockType) { - if (lockType == READ) return false; // we don't support read locks. TODO: enforce this with an assertion + if (lockType == READ) return false; // we don't support read locks. return lockContainer.isLocked(n.getFqn()); } Modified: core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementLockContainer.java =================================================================== --- core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementLockContainer.java 2009-03-19 10:20:25 UTC (rev 7922) +++ core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementLockContainer.java 2009-03-19 10:28:45 UTC (rev 7923) @@ -13,8 +13,13 @@ */ public abstract class PerElementLockContainer<E> implements LockContainer<E> { - ConcurrentMap<E, Lock> locks = new ConcurrentHashMap<E, Lock>(); + protected final ConcurrentMap<E, Lock> locks; + protected PerElementLockContainer(int concurrencyLevel) + { + locks = new ConcurrentHashMap<E, Lock>(16, .75f, concurrencyLevel); + } + protected abstract Lock newLock(); public final Lock getLock(E object) Modified: core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementOwnableReentrantLockContainer.java =================================================================== --- core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementOwnableReentrantLockContainer.java 2009-03-19 10:20:25 UTC (rev 7922) +++ core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementOwnableReentrantLockContainer.java 2009-03-19 10:28:45 UTC (rev 7923) @@ -14,8 +14,9 @@ { private InvocationContextContainer icc; - public PerElementOwnableReentrantLockContainer(InvocationContextContainer icc) + public PerElementOwnableReentrantLockContainer(int concurrencyLevel, InvocationContextContainer icc) { + super(concurrencyLevel); this.icc = icc; } Modified: core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementReentrantLockContainer.java =================================================================== --- core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementReentrantLockContainer.java 2009-03-19 10:20:25 UTC (rev 7922) +++ core/trunk/src/main/java/org/jboss/cache/util/concurrent/locks/PerElementReentrantLockContainer.java 2009-03-19 10:28:45 UTC (rev 7923) @@ -11,6 +11,11 @@ */ public class PerElementReentrantLockContainer<E> extends PerElementLockContainer<E> { + public PerElementReentrantLockContainer(int concurrencyLevel) + { + super(concurrencyLevel); + } + public boolean ownsLock(E object, Object owner) { ReentrantLock l = getLockFromMap(object);