Question
Download Solution PDFSuppose P, Q and R are co-operating processes satisfying Mutual Exclusion condition. Then if the process Q is executing in its critical section then
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcepts:
A mutual exclusion (mutex) is a program object that prevents simultaneous access to a shared resource.
A critical section is a code segment that accesses shared variables and has to be executed as an atomic action. The critical section problem refers to the problem of how to ensure that at most one process is executing its critical section at a given time.
PROCESS:
|
ENTRY SECTION |
|
Process Q CRITICAL SECTION |
|
EXIT SECTION |
|
REMAINDER SECTION |
Since process ‘Q’ is in the critical section then other processes P and R cannot be in the critical section. Therefore neither ‘P’ nor ‘R’ executes in their critical section.
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