What is livelock?

A state where multiple processes constantly change their state in response to each other, performing actions but not making progress. They are not blocked, but cannot complete their work.

Example: two people trying to pass each other in a narrow corridor, constantly stepping into each other's way instead of yielding.

In multithreaded applications, Livelock can occur, for example, when threads try to acquire resources in a certain order but each time "yield" to another thread, preventing either from completing the operation.

Comparison with Deadlock:

Characteristic	Livelock	Deadlock
State	Processes are active, CPU is used	Processes are blocked
Progress	Absent	Absent
Cause	Constant change of state	Mutual resource blocking

Prevention: careful design of thread interaction logic, using timeouts or a deterministic resource acquisition order.