使用RAG进行死锁检测 如果在资源分配图中形成一个循环,其中所有资源都有单个实例,则系统将死锁。 1分配矩阵 2请求矩阵 在具有多实例资源类型的资源分配图的情况下,周期是死锁的必要条件,但不是充分条件。 以下示例包含三个进程P1,P2,P3和三个资源R2,R2,R3。 所有资源都有单个实例。 如果我们分析图表,那么我们可以...
block. Figure 1: Behavior of SmartLock Note that in order to perform cycle detection, you will need to represent each thread and each lock with a unique id. This can be achieved by using pthread_self() for threads and by assigning unique integer id for each SmartLock variable. Submission ...
6. Deadlock Detection and Avoidance In this method, the OS assumes that a deadlock will occur in the future. Soit runs a deadlock detection mechanism with a certain interval of time, and when it detects the deadlock, it starts a recovery approach. The main task of the OS is to detect...