Semaphore is a counter limiting the number of threads concurrently accessing a shared resource.This counter is always between 0 and the maximum value specified during the semaphore creation. When the counter is strictly greater than 0, a call to Wait returns immediately and decrements the counter...
说明:本文面向有经验的 C++ 程序员,不适合初学者。 第二部分:你可能不知道的 C++(二) 此为《你可能不知道的 C++》的第一部分,讨论 C & C++,编译单元,及对象。 C++ has indeed become too "expert friendly".C++ 着实已经变得太“面向专家”了。 Bjarne Stroustrup, The Problem with Programming, Technology ...