MpUnboundedXaddChunk::soPrev uses putObject

[hl845740757]

This may be a naming error that is confusing.

    final void soPrev(R value)
    {
        UNSAFE.putObject(this, PREV_OFFSET, value);
    }

[franz1981]

@hl845740757 Thanks for sharing: just sent a PR to address this correctly

[franz1981]

@hl845740757 I still think that the peek/relaxedPeek issue you've found for other queues is present as well for the xadd qs

[hl845740757]

@franz1981 I am working on it.

[hl845740757]

@franz1981 Did you forget to release cChunk.prev here

    final void moveToNextConsumerChunk(R cChunk, R next)
    {
        // avoid GC nepotism
        cChunk.soNext(null);
        next.soPrev(null);
        // no need to cChunk.soIndex(NOT_USED)
        if (cChunk.isPooled())
        {
            final boolean pooled = freeChunksPool.offer(cChunk);
            assert pooled;
        }
        this.soConsumerChunk(next);
        // MC case:
        // from now on the code is not single-threaded anymore and
        // other consumers can move forward consumerIndex
    }

[franz1981]

cChunk.prev should always be null at this point