List of nonBlockingLock() Examples

Examples of nonBlockingLock()

com.sleepycat.je.txn.BasicLocker.nonBlockingLock()

Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()

             */
            locker = BasicLocker.createBasicLocker(env, false /*noWait*/);
            /* Don't allow this short-lived lock to be preempted/stolen. */
            locker.setPreemptable(false);
            LockResult lockRet =
                locker.nonBlockingLock(originalLsn, LockType.READ,
                                       false /*jumpAheadOfWaiters*/, db);
            if (lockRet.getLockGrant() == LockGrantType.DENIED) {
                /* Try again later. */
                nPendingLNsLocked.increment();
                lockDenied = true;

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Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()

             */
            if (lockedPendingLsn != lsn) {
                locker = BasicLocker.createBasicLocker(env, false /*noWait*/);
                /* Don't allow this short-lived lock to be preempted/stolen. */
                locker.setPreemptable(false);
                LockResult lockRet = locker.nonBlockingLock
                    (lsn, LockType.READ, false /*jumpAheadOfWaiters*/, db);
                if (lockRet.getLockGrant() == LockGrantType.DENIED) {


                    /*
                     * LN is currently locked by another Locker, so we can't

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Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()

        /* To prevent DB open, get a write-lock on the MapLN. */
        EnvironmentImpl envImpl = databaseImpl.getDbEnvironment();
        BasicLocker locker = BasicLocker.createBasicLocker(envImpl);
        DatabaseImpl idDatabaseImpl = envImpl.getDbTree().getIdDatabaseImpl();
        try {
            LockResult lockResult = locker.nonBlockingLock
                (lsn, LockType.WRITE, false /*jumpAheadOfWaiters*/,
                 idDatabaseImpl);


            /*
             * The isEvictableInexact result is guaranteed to hold true during

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Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()

        /* Lock LSN to guarantee deletedness. */
        final BasicLocker lockingTxn = BasicLocker.createBasicLocker(envImpl);
        /* Don't allow this short-lived lock to be preempted/stolen. */
        lockingTxn.setPreemptable(false);
        try {
            final LockResult lockRet = lockingTxn.nonBlockingLock
                (lsn, LockType.READ, false /*jumpAheadOfWaiters*/,
                 checkBin.getDatabase());
            if (lockRet.getLockGrant() == LockGrantType.DENIED) {
                /* Is locked by a resurrected txn. */
                return false;

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Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()

                 * acquire a non-blocking read lock.
                 */
                locker = BasicLocker.createBasicLocker(env, false /*noWait*/);
                /* Don't allow this short-lived lock to be preempted/stolen. */
                locker.setPreemptable(false);
                LockResult lockRet = locker.nonBlockingLock
                    (treeLsn, LockType.READ, false /*jumpAheadOfWaiters*/, db);
                if (lockRet.getLockGrant() == LockGrantType.DENIED) {


                    /*
                     * LN is currently locked by another Locker, so we can't

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Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()

            lockingTxn.setPreemptable(false);
            try {
                /* Lock LSN.  Can discard a NULL_LSN entry without locking. */
                final long lsn = getLsn(i);
                if (lsn != DbLsn.NULL_LSN) {
                    final LockResult lockRet = lockingTxn.nonBlockingLock
                        (lsn, LockType.READ, false /*jumpAheadOfWaiters*/, db);
                    if (lockRet.getLockGrant() == LockGrantType.DENIED) {
                        anyLocksDenied = true;
                        continue;
                    }

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Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()

             * writers in the tree. TODO: This seems unnecessary now, revisit.
             */
            ChildReference dclRef = duplicateRoot.getDupCountLNRef();
            dcl = (DupCountLN) dclRef.fetchTarget(database, duplicateRoot);


            LockResult lockResult = locker.nonBlockingLock(dcl.getNodeId(),
                                                           LockType.READ,
                                                           database);
            if (lockResult.getLockGrant() == LockGrantType.DENIED) {
                throw CursorsExistException.CURSORS_EXIST;
            }

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Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()

        /* To prevent DB open, get a write-lock on the MapLN. */
        EnvironmentImpl envImpl = databaseImpl.getDbEnvironment();
        BasicLocker locker = BasicLocker.createBasicLocker(envImpl);
        DatabaseImpl idDatabaseImpl = envImpl.getDbTree().getIdDatabaseImpl();
        try {
            LockResult lockResult = locker.nonBlockingLock
                (getNodeId(), LockType.WRITE, idDatabaseImpl);


            /*
             * The isEvictableInexact result is guaranteed to hold true during
             * LN stripping if it is still true after acquiring the write-lock.

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Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()


                    if (n == null) {
                        /* Cleaner deleted the log file.  Compress this LN. */
                        deleteEntry = true;
                    } else if (isEntryKnownDeleted(i)) {
                        LockResult lockRet = lockingTxn.nonBlockingLock
                            (n.getNodeId(), LockType.READ, db);
                        if (lockRet.getLockGrant() == LockGrantType.DENIED) {
                            anyLocksDenied = true;
                            continue;
                        }

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Examples of com.sleepycat.je.txn.BasicLocker.nonBlockingLock()


                        deleteEntry = true;
                    } else {
                        if (!n.containsDuplicates()) {
                            LN ln = (LN) n;
                            LockResult lockRet = lockingTxn.nonBlockingLock
                                (ln.getNodeId(), LockType.READ, db);
                            if (lockRet.getLockGrant() ==
                                LockGrantType.DENIED) {
                                anyLocksDenied = true;
                                continue;

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