What is the Mutex and semaphore In c#? where we need to implement?

c# multithreading mutex semaphore
Jaswant Agarwal picture Jaswant Agarwal · Oct 12, 2009 · Viewed 31.8k times · Source

What is the Mutex and semaphore in C#? Where we need to implement?

How can we work with them in multithreading?

Answer

bobbymcr picture bobbymcr · Oct 12, 2009

You should start at MSDN.

Generally you only use a Mutex across processes, e.g. if you have a resource that multiple applications must share, or if you want to build a single-instanced app (i.e. only allow 1 copy to be running at one time).

A semaphore allows you to limit access to a specific number of simultaneous threads, so that you could have, for example, a maximum of two threads executing a specific code path at a time.

Related questions

How to wait for a boolean without looping (using any kind of wait / semaphore / event / mutex, etc)

I need to stop a thread until another thread sets a boolean value and I don't want to share between them an event. What I currently have is the following code using a Sleep (and that's the code I want …

Read More
Concurrent HashSet<T> in .NET Framework?

I have the following class. class Test{ public HashSet<string> Data = new HashSet<string>(); } I need to change the field "Data" from different threads, so I would like some opinions on my current thread-safe implementation. class …

Read More
Usage of Mutex in c#

I am a bit new in threading in c# and on general, in my program I am using mutex to allow only 1 thread getting inside a critical section and for unknown reason with doing some cw prints I can see …

Read More