Blocking vs. Non-Blocking IO


Blocking IO:

  • Waits for operation to complete before returning control
  • Simple to understand and program
  • Can lead to inefficient resource use if not managed properly
# Blocking IO example
data =  # The thread will wait here until the read operation is complete.
process(data)  # This line will only execute after the operation has completed.

Non-blocking IO:

  • Returns control immediately, operation continues in the background
  • More complex to program due to need for callbacks or polling
  • Enables efficient resource use, especially in high-load scenarios
# Non-blocking IO example  # Initiates a read operation and immediately returns control to the next line.
# Other code can execute now, while `` is still ongoing.