[net.unix-wizards] Re Async pipes under SYS3,SYS5

mab@AIDS-UNIX.ARPA (07/20/84)

From:  Mike Brzustowicz <mab@AIDS-UNIX.ARPA>

I had used them as counting semaphores with a FIFO queue.  THis was intended
to be used to restrict the number of nroff/troff jobs running at once.

-Mike