If a thread has entered the semaphore multiple times, this method overload allows the entire semaphore count to be restored with one call.

If a System.Threading.SemaphoreFullException is thrown by the erload:System.Threading.Semaphore.Release method, it does not necessarily indicate a problem with the calling thread. A programming error in another thread might have caused that thread to exit the semaphore more times than it entered.

If the current System.Threading.Semaphore object represents a named system semaphore, the user must have System.Security.AccessControl.SemaphoreRights.Modify rights and the semaphore must have been opened with System.Security.AccessControl.SemaphoreRights.Modify rights.