Issues while writing and reading from different daemons with flock

[ABaligar]

I understand that with tape I need to use an external lock if I am accessing object queue file from two different daemons. I use flock to lock the file before I do any of the operations (add, peek, remove). My writer daemon produces slower than the reader, so once the reader consumes everything, it reports the queue size as zero and continues to do so even when the writer writes after some mili seconds. If I create the object queue newly, it gets the size right, but object converter doesn't work properly, looks like the file is corrupted somewhat. Any solution you can suggest here?