An asynchronous .NET library that allows you to lock based on a key (keyed semaphores), limiting concurrent threads sharing the same key to a specified number, with optional pooling for reducing memory allocations.
Get Started
$ dotnet add package AsyncKeyedLockReadme
AsyncKeyedLock
An asynchronous .NET Standard 2.0 library that allows you to lock based on a key (keyed semaphores), only allowing a defined number of concurrent threads that share the same key.
For example, if you're processing transactions, you may want to limit to only one transaction per user so that the order is maintained, but meanwhile allowing parallel processing of multiple users.
Installation
The recommended means is to use NuGet, but you could also download the source code from here.
Usage
var asyncKeyedLocker = new AsyncKeyedLocker();
using (var lockObj = await asyncKeyedLocker.LockAsync(myObject))
{
...
}