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Deadlock and Starvation in C#
Deadlock occurs when a resource is locked by a thread and is required by another thread at the same time. This problem occur frequenty in a multiprocessing system.
It can occur when two or more threads wait for a resource that belon to another thread. Here is an example −
| Thread One | Thread Two |
|---|---|
| Takes Lock P | Takes Lock Q |
| Requests Lock Q | Requests Lock P |
Thread One will not get Lock Q since it belongs to Thread Two. In the same way, Thread Two won’t get Lock P since its original owner is Thread One.
Deadlocks can also be a three-way deadlock that occurs if three threads and three locks are common. In the same way, it can occur for four-way, five-way, and other deadlocks.
Starvation is permanent blocking of one or more runnable threads in a multithreaded application.
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