6.1.1 Reusable resources( 2/ 3) Interleaves the execution: p0 p1 g0 ql p2 92 Process p Process Q Step Action Step Action Request d) Request t) Lock①D) Lock (T pppppp Request (T) Request①D Lock ( T Lock D) Perform function Perform function 456 Unlock①D) Unlock T Unlock T) qqq 456 Unlock①D) Figure 6.4 Example of Two Processes Competing for Reusable Resources6.1.1 Reusable Resources（2/3) • Interleaves the execution: p0 p1 q0 q1 p2 q2 13