Aric's fix to gettime
reader-writer lock we might talk about today
anton and I are pretty sure this call can fail
add first version of ring buffer spec
tweak
tweaks
updates
add a call to get ring size

add remarks about wrapping
revisions
add implementation details from today
Added testshmget.c
Woops, added makefile.
To make scotty happy.
It compiles now.
Added ringbuffer.
Updated ring.txt
Added ring file.
merging