atomic operation
An atomic operation takes effect indivisibly with respect to the relevant observers.
Use this when Concurrent read-modify-write operations lose updates.
without the term
“We read the stock count, subtract one, and write it back, and under load we oversell. Can you make the decrement safe when lots of people buy at once?”
with the term · How do you ask a model for atomic operation?
Make this update atomic at the shared-state boundary. Test competing writers and verify the invariant across the entire operation.
What is atomic operation?
An atomic operation, such as an atomic increment, compare-and-swap, or a single SQL UPDATE, happens all at once, so no other writer can see or change a half-finished state.
Why does atomic operation matter when vibe coding?
Two individually safe statements may still expose an unsafe intermediate state.
How do you do atomic operation?
Choose the atomic primitive or database operation that protects the complete required update.
What goes wrong with atomic operation?
Assuming atomicity also supplies every required memory-ordering or transaction-isolation guarantee.