rendezvous3.pseudo

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procedure main()
  shared a1_ready := create_semaphore(0)
  shared b1_ready := create_semaphore(0)
  create_thread(thread_a)
  create_thread(thread_b)
end procedure

procedure thread_a()
  statement a1
  wait(b1_ready)
  signal(a1_ready)
  statement a2
end procedure

procedure thread_b()
  statement b1
  wait(a1_ready)
  signal(b1_ready)
  statement b2
end procedure