client/src/main/java/org/apache/rocketmq/client/consumer/store/LocalFileOffsetStore.java [77:116]:
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    @Override
    public void updateOffset(MessageQueue mq, long offset, boolean increaseOnly) {
        if (mq != null) {
            ControllableOffset offsetOld = this.offsetTable.get(mq);
            if (null == offsetOld) {
                offsetOld = this.offsetTable.putIfAbsent(mq, new ControllableOffset(offset));
            }

            if (null != offsetOld) {
                if (increaseOnly) {
                    offsetOld.update(offset, true);
                } else {
                    offsetOld.update(offset);
                }
            }
        }
    }

    @Override
    public void updateAndFreezeOffset(MessageQueue mq, long offset) {
        if (mq != null) {
            this.offsetTable.computeIfAbsent(mq, k -> new ControllableOffset(offset))
                .updateAndFreeze(offset);
        }
    }

    @Override
    public long readOffset(final MessageQueue mq, final ReadOffsetType type) {
        if (mq != null) {
            switch (type) {
                case MEMORY_FIRST_THEN_STORE:
                case READ_FROM_MEMORY: {
                    ControllableOffset offset = this.offsetTable.get(mq);
                    if (offset != null) {
                        return offset.getOffset();
                    } else if (ReadOffsetType.READ_FROM_MEMORY == type) {
                        return -1;
                    }
                }
                case READ_FROM_STORE: {
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client/src/main/java/org/apache/rocketmq/client/consumer/store/RemoteBrokerOffsetStore.java [58:97]:
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    @Override
    public void updateOffset(MessageQueue mq, long offset, boolean increaseOnly) {
        if (mq != null) {
            ControllableOffset offsetOld = this.offsetTable.get(mq);
            if (null == offsetOld) {
                offsetOld = this.offsetTable.putIfAbsent(mq, new ControllableOffset(offset));
            }

            if (null != offsetOld) {
                if (increaseOnly) {
                    offsetOld.update(offset, true);
                } else {
                    offsetOld.update(offset);
                }
            }
        }
    }

    @Override
    public void updateAndFreezeOffset(MessageQueue mq, long offset) {
        if (mq != null) {
            this.offsetTable.computeIfAbsent(mq, k -> new ControllableOffset(offset))
                .updateAndFreeze(offset);
        }
    }

    @Override
    public long readOffset(final MessageQueue mq, final ReadOffsetType type) {
        if (mq != null) {
            switch (type) {
                case MEMORY_FIRST_THEN_STORE:
                case READ_FROM_MEMORY: {
                    ControllableOffset offset = this.offsetTable.get(mq);
                    if (offset != null) {
                        return offset.getOffset();
                    } else if (ReadOffsetType.READ_FROM_MEMORY == type) {
                        return -1;
                    }
                }
                case READ_FROM_STORE: {
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