The test-and-set instruction ________.
A) prevents deadlock
B) prevents indefinite postponement
C) eliminates the possibility that a thread is preempted between reading a value from a memory location and writing a new value to the memory location
D) none of the above

Question

Quizplus · Accepted Answer

The test-and-set instruction is an atomic operation used to achieve mutual exclusion by ensuring that a thread cannot be preempted between reading and writing a value to a memory location, thus preventing race conditions.

The Test-And-Set Instruction ________