Draw a timing diagram
Suppose that we implement
using an ordinary procedure as shown in the text, without attempting to make the operation atomic. Draw a timing diagram like the one in figure 3.29 to demonstrate how the mutex implementation can fail by allowing two processes to acquire the mutex at the same time.
Figure 3.29: Timing diagram showing how interleaving the order of events in two banking withdrawals can lead to an incorrect final balance.
There are no comments yet.
You must log in to post a comment.Login