Ejemplo n.º 1
0
        /// <summary>
        /// Waits for all references to be released while disallowing
        /// attempts to acquire rundown protection.
        /// </summary>
        /// <param name="millisecondsTimeout">The timeout, in milliseconds.</param>
        /// <returns>Whether all references were released.</returns>
        public bool Wait(int millisecondsTimeout)
        {
            // Fast path. Just in case there are no users, we can go ahead
            // and set the active flag and exit. Or if someone has already
            // initiated the rundown, exit as well.
            int value = Interlocked.CompareExchange(ref this._value, RundownActive, 0);

            if (value == 0 || value == RundownActive)
            {
                return(true);
            }

            // Set the rundown active flag.
            do
            {
                value = _value;
            } while (Interlocked.CompareExchange(
                         ref _value,
                         value | RundownActive,
                         value
                         ) != value);

            // Wait for the event, but only if we had users.
            if ((value & ~RundownActive) != 0)
            {
                return(_wakeEvent.Wait(millisecondsTimeout));
            }

            return(true);
        }
Ejemplo n.º 2
0
 protected override bool WaitOneInternal(int timeout)
 {
     return(fe.Wait(timeout));
 }