要包含的内容: 线程池(存放线程) 任务队列(存放任务) 执行的过程:主线程向任务队列中提交任务;线程池中的线程,从任务队列中取任务,然后执行。(互斥访问)
首先,我们要考虑到,提交的任务,它的返回值和参数可能是任意的;同时,队列的性质要求,队列中的元素必须是相同类型的 因此,基本的思路是,队列中存放void*类型的函数指针,指向的函数中调用封装好的函数
互斥访问:要保证在同一时刻只能有一个线程访问任务队列。互斥锁+队列 实现安全队列
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