Lines Matching refs:semaphore

23 A semaphore holds a single volatile 32-bit counter, and a static 32-bit
28 when the semaphore is created.
48 An event is similar to a semaphore with a maximum count of one. It holds
108   Create a semaphore object. Takes a pointer to struct
114        - Initial count of the semaphore.
116        - Maximum count of the semaphore.
119   On success, returns a file descriptor the created semaphore.
157   Post to a semaphore object. Takes a pointer to a 32-bit integer,
158   which on input holds the count to be added to the semaphore, and on
161   If adding to the semaphore's current count would raise the latter
162   past the semaphore's maximum count, the ioctl fails with
163   ``EOVERFLOW`` and the semaphore is not affected. If raising the
164   semaphore's count causes it to become signaled, eligible threads
165   waiting on this semaphore will be woken and the semaphore's count
218   Read the current state of a semaphore object. Takes a pointer to
224        - On output, contains the current count of the semaphore.
226        - On output, contains the maximum count of the semaphore.
320   A semaphore is considered to be signaled if its count is nonzero, and
331   signaled. If two wait operations are queued on the same semaphore,