List of nonBlockingReadLock() Examples

Examples of nonBlockingReadLock()

com.sleepycat.je.txn.BasicLocker.nonBlockingReadLock()
Get a non-blocking read lock on this nodeId and return LockGrantType.DENIED if it is not granted. Note that this always gets LockType.READ, not RANGE_READ, and should only be used in specialized internal cases. It should not be used for API-level operations.

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

             * BIN (and DIN) since we always attempt to acquire a non-blocking
             * read lock.  Holding the latch ensures that the INs won't change
             * underneath us because of splits or eviction.
       */
      locker = new BasicLocker(env);
      LockGrantType lock = locker.nonBlockingReadLock(nodeId, db);
      if (lock == LockGrantType.DENIED) {


    /* 
     * LN is currently locked by another Locker, so we can't assume
      * anything about the value of the LSN in the bin.  However,

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

            Tree tree = db.getTree();
            assert tree != null;


            /* Get a non-blocking lock on the original node ID. */
      locker = new BasicLocker(env);
      if (locker.nonBlockingReadLock(ln.getNodeId(), db) ==
                LockGrantType.DENIED) {
                /* Try again later. */
                nPendingLNsLocked++;
                lockDenied = true;
                completed = true;

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

             * current LN's node if a slot is reused.  We must lock the current
             * node to guard against aborts.
             */
            if (lockedPendingNodeId != ln.getNodeId()) {
                locker = new BasicLocker(env);
                LockGrantType lock = locker.nonBlockingReadLock
                    (ln.getNodeId(), db);
                if (lock == LockGrantType.DENIED) {


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

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

    ChildReference dclRef = duplicateRoot.getDupCountLNRef();
    dcl = (DupCountLN)
        dclRef.fetchTarget(database, duplicateRoot);


    /* Read lock the dup count LN. */
    if (locker.nonBlockingReadLock(dcl.getNodeId(), database) ==
                    LockGrantType.DENIED) {
        return false;
    } else {
        dupCountLNLocked = true;
    }

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

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

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

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

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

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

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

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

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

    ChildReference dclRef = duplicateRoot.getDupCountLNRef();
    dcl = (DupCountLN)
        dclRef.fetchTarget(database, duplicateRoot);


    /* Read lock the dup count LN. */
    if (locker.nonBlockingReadLock(dcl.getNodeId(), database) ==
                    LockGrantType.DENIED) {
        return false;
    } else {
        dupCountLNLocked = true;
    }

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