Examples of com.sleepycat.je.tree.IN.latch()

com.sleepycat.je.tree.IN.latch()
Latch this node exclusive, optionally setting the generation.

        boolean isIN = (node instanceof IN);
        IN in = null;
        try {
            if (isIN) {
                in = (IN) node;
                in.latch(CacheMode.UNCHANGED);
            }
            if (node != null) {
                callProcessLSNHandleExceptions
                    (lsn, node.getLogType(), node, lnKeyEntry.getData());

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             * and the log LSN is the current log entry.
             */
            IN in = reader.getIN();
            long inLsn = reader.getLsnOfIN();
            in.postRecoveryInit(db, inLsn);
            in.latch();


            /*
             * Track the levels, in case we need an extra splits vs ckpt
             * reconcilliation.
             */

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                } else {
                    /* getParentINForChildIN takes exclusive latches above. */
                    in = (IN) result.parent.fetchTargetWithExclusiveLatch
                        (result.index);
                }
                in.latch(Cleaner.UPDATE_GENERATION);
                return in;
            }
        } finally {
            if ((result != null) && (result.exactParentFound)) {
                result.parent.releaseLatch();

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             * root ChildReference.  We still do this for compatibility with
             * old log versions but may be able to remove it in the future.
             */
            if (DbLsn.compareTo(root.getLsn(), logLsn) <= 0) {
                IN rootIN = (IN) root.fetchTarget(db, null);
                rootIN.latch(Cleaner.UPDATE_GENERATION);
                return rootIN;
            } else {
                return null;
            }
        }

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            INEntry inEntry = lsnINMap.remove(Long.valueOf(lsn));
            assert (inEntry != null) : DbLsn.getNoFormatString(lsn);
            IN in = inEntry.in;
            boolean isLatchedAlready = in.isLatchOwnerForWrite();
            if (!isLatchedAlready) {
                in.latch();
            }


            try {
                int index = inEntry.index;
                if (index < 0) {

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       * and the log LSN is the current log entry.
             */
            IN in = reader.getIN();
            long inLsn = reader.getLsnOfIN();
            in.postRecoveryInit(db, inLsn);
            in.latch();
            replaceOrInsert(db, in, reader.getLastLsn(), inLsn,
                            requireExactMatch);
        }


        /*

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