manu 0d78304995 Improved support for polling semaphores: when a polling semaphore is unblocked,
poll will return true until the semaphore is blocked again, but before the
semaphore is blocked, poll returns false.

We do this by maintaining another queue of "released" processes in
struct irix_usema_rec. Unblocking causes the waiting process record to be
moved to the released queue, and poll check for the process in this released
queue.
2002-05-30 05:16:10 +00:00
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