Consider a typical process P in the critical section. Arrange the following statements of code to make a valid general structure $$ \text{ (A). Critical section } $$ $$ \text{ (B). Remainder section } $$ $$ \text{ (C). Entry section } $$ $$\text{ (D). Exit section } $$
The general structure of a process involving synchronization is executed in the following order:
1. Entry Section (C): The process requests permission to enter the critical section.
2. Critical Section (A): Once permission is granted, the process executes the code where shared resources are accessed.
3. Exit Section (D): After finishing the critical task, the process releases the lock or signals exit so others can enter.
4. Remainder Section (B): The process continues with the rest of its non-critical code.
Therefore, the correct sequence is (C) \( \rightarrow \) (A) \( \rightarrow \) (D) \( \rightarrow \) (B).
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