How do semaphores work in multithreading?
An example of an AI chatbot conversation about semaphores in multithreading.
Can you explain how semaphores work in multithreading?
Sure! Semaphores are synchronization tools that control access to shared resources in a multithreaded environment.
How do they differ from mutexes?
While both are used for synchronization, semaphores allow multiple threads to access a resource, whereas mutexes allow only one.
Can you give me an example of using a semaphore?
Absolutely! Imagine a scenario with a limited number of database connections. A semaphore can limit the number of threads accessing the database simultaneously.
What happens if a thread tries to access a resource when the semaphore count is zero?
The thread will be blocked until another thread releases the semaphore, increasing the count and allowing access.
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