关于死锁的各种说法中正确的有()。为了预防死锁,我们会采取很多措施,其中采用资源一次性分配措施是为了破坏()条件。
①在互斥条件下,即某一段时间内某资源仅为一进程所占用时,有可能发生死锁
②在请求和保持条件下,即当进程因请求资源而阻塞,却对已获得的资源保持不放的情况下,有可能发生死锁
③在不剥夺条件下,即进程已获得的资源在未使用完之前不能被剥夺,而只能在使用完时由自己释放,有可能发生死锁
④在发生死锁时,必然存在一个进程——资源的环形链。
关于死锁的各种说法中正确的有()。
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