5.1. 4 Process Interaction (1/5) ·进程间三种可能的交互方式 Processes unaware of each other Processes indirectly aware of each other Process directly aware of each other19 5.1.4 Process Interaction(1/5) • 进程间三种可能的交互方式 • Processes unaware of each other • Processes indirectly aware of each other • Process directly aware of each other