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Date: Sat, 4 Jun 2016 04:49:40 -0700 (PDT)
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Subject: Re: Buffer PO
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Date: 2016-06-04T04:49:40-07:00
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Thanks for your replies. I did not come across them till I settled on a sol=
ution , but thanks.
 What I settled on was ,
  I made a peek function for the discriminant, which I used just before pop=
ping and then within the PO to check before I popped.I added a success flag=
 to the pop and if the second peek was different then success was marked fa=
lse and the pop was not done, and the calling procedure would exit a loop i=
f successful, if not a delay then a retry ( which is very very rare but cou=
ld happen).