... College I used the first edition of The Little Book of Semaphores along with one of the standard textbooks, and I taught Synchronization as a concurrent thread for the duration of the course Each ... signals the barrier, one of the waiting threads is allowed to proceed, and the semaphore is incremented to -3 But then no one signals the semaphore again and none of the other threads can pass the ... that there are so many names, but there is a reason for the plurality increment and decrement describe what the operations signal and wait describe what they are often used for And V and P were the...