At 1:38 PM -0600 on 1/21/08, Paul Gilmartin wrote about Re: How does
ATTACH pass address of ECB to child?:
When the mother needs the daughter's assistance, it WAITs on the
second ECB, clears it, and POSTS the first.
ONLY IF the mother task has nothing else it can do while it is
waiting for the daughter to be ready to do something for it.
Otherwise the mother task just periodically tests ECB2 and does its
POST once ECB1 has been WAIT'ed on by the daughter.
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