How to control the number of threads in C#?

Question

C++ / C#

Hello.
The problem is that you need to manage the number of threads. That is, the task is the following, for example, start 5 threads out of 5 threads finished 1. So the other 4 threads work to the end, but we create another thread and add it to the pool. How to manage flows? Where to look in terms of implementation?

Answer 1

Everything has already been implemented: https :
//docs.microsoft.com/ru-ru/dotnet/api/system... dotnet/api/system... https://docs.microsoft.com/en-us/dotnet/api/system...

Answer 2

One thread finished and ticked "I'm all". The control thread saw the checkbox and started another thread.
The checkbox can be replaced with a semaphore.

Answer 3

Have a look System.Threading.ThreadPooland System.Threading.Tasks.Parallel(or PLINQ).
Or just write your own. This classic puzzle will take no more than 30 minutes.