题目内容
At a particular time of computation the value of a counting semaphore is 7.Then 20 P operations and 15 V operations were completed on this semaphore. The resulting value of the semaphore is?
查看答案
搜索结果不匹配？点我反馈
更多问题
A binary semaphore is a semaphore with integer values ____________
The following pair of processes share a common variable X.X is set to 5 before either process begins execution. As usual, statements within a process are executed sequentially, but statements in process A may execute in any order with respect to statements in process B.How many different values of X are possible after both processes finish executing?
The program follows to use a shared binary semaphore T.T is set to 0 before either process begins execution and, as before, X is set to 5.Now, how many different values of X are possible after both processes finish executing?
All processes share a semaphore variablemutex, initialized to 1. Each process must execute wait(mutex) before entering the critical section and signal(mutex) afterward.Suppose a process executes in the following manner.
微信支付 
支付宝支付