Why does the textbook recommend signallAll over the signal method?
A)The signalAll method is always more efficient
B)signal can lead to deadlocks when not every waiting thread is able to proceed
C)signalAll notifies the waiting threads that sufficient funds is absolutely available, while signal only notifies one at a time
D)None of the above

Question

Quizplus · Accepted Answer

The textbook recommends siganlAll over the signal method because signalAll notifies all the threads waiting on a particular condition variable, while signal wakes up only one thread. This can cause deadlocks when not every waiting thread is able to proceed, leading to inefficient and unpredictable behavior. Therefore, when multiple threads are waiting on a particular condition variable, signalAll should be used instead of signal.

Why Does the Textbook Recommend SignallAll Over the Signal Method