Ruby - Concurrent Programming
Which method is used in Ruby to wait for a child process to finish after a fork?
Which method is used in Ruby to wait for a child process to finish after a fork?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify method to wait for child process
Ruby providesProcess.waitto pause the parent until a child process ends.Step 2: Confirm other options are unrelated
Process.sleeppauses current process,Process.exitterminates,Process.runis invalid.Final Answer:
Process.wait -> Option CQuick Check:
Wait for child = Process.wait [OK]
Quick Trick: Use Process.wait to pause parent until child ends [OK]
Common Mistakes:
- Using Process.sleep to wait for child
- Confusing Process.exit with waiting
- Assuming Process.run exists
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