Due: Prior to 3/19/2001

Modify Program #7 such that:

1. The Consumer threads do NOT exit on any accumulated count
2. When the original 5 producers have exited, main() will
   • sleep(1)
   • create a 6th producer to produce 5 widgits (and then exit)
   • when the 6th producer exits main issues a SIG USR1 interrupt ONLY ONCE and proceed to join both exit-ing consumers
3. the consumers, after seeing a SIG USR1 will no longer cond_wait on an empty buffer, but will exit instead
4. produce a summary of who has done what

Suggestions:

1. Change the original number to be produced to 10 - 15 (make it run faster)
2. Make changes to #7 one small step at a time (always stay only a short distance from a correctly running program).

a partial sample output

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You should use the 'script' command to capture all necessary information for handin.