6.1.1 Reusable resources( 1/3) ● Resources category Reusable resources(可重用资源) 特点: Used by only one process at a time and not depleted(耗尽) by that use 1F8: Processes obtain resources that they later release for reuse by other processes 举例: Processors,I/ o channels, main and secondary memory, devices, and data structures such as files, databases, and semaphores Deadlock occurs if each process holds one resource and requests the other6.1.1 Reusable Resources（1/3) • Resources category • Reusable Resources(可重用资源） • 特点：Used by only one process at a time and not depleted(耗尽) by that use • 使用：Processes obtain resources that they later release for reuse by other processes • 举例：Processors, I/O channels, main and secondary memory, devices, and data structures such as files, databases, and semaphores • Deadlock occurs if each process holds one resource and requests the other 12