读者写者问题C++解法,使用互斥信号量,写者线程优先,共有3个读者2个写者-Similar to the barbers problem,the program use semaphore to solve the reader/writer problem.Two semaphores are involved:m_h,db_h,used as a counter and mutex between 2 writers. Main function create 3 reader thre

uTenxu的例子，包含任务，信号量，互斥体，邮箱，事件标志，消息缓冲，内存池，中断(The example of uTenxu includes tasks, semaphore, mutex, mailbox, event flag, message buffer, memory pool, interrupt.)