Ruby - Concurrent Programming
Which of these best describes what happens if two threads try to lock the same Mutex at the same time?
Which of these best describes what happens if two threads try to lock the same Mutex at the same time?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Mutex locking behavior
Mutex allows only one thread to hold the lock at a time.Step 2: Determine what happens to the second thread
The second thread waits until the first thread unlocks the Mutex.Final Answer:
One thread locks it, the other waits until it is unlocked -> Option BQuick Check:
Mutex lock = One thread at a time [OK]
Quick Trick: Only one thread can hold a Mutex lock at once [OK]
Common Mistakes:
- Assuming simultaneous locks are possible
- Expecting an error on contention
- Thinking threads skip locking
Master "Concurrent Programming" in Ruby
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