AsyncKeyedLock 2.0.0

There is a newer version of this package available.
See the version list below for details.
dotnet add package AsyncKeyedLock --version 2.0.0
                    
NuGet\Install-Package AsyncKeyedLock -Version 2.0.0
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="AsyncKeyedLock" Version="2.0.0" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="AsyncKeyedLock" Version="2.0.0" />
                    
Directory.Packages.props
<PackageReference Include="AsyncKeyedLock" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add AsyncKeyedLock --version 2.0.0
                    
#r "nuget: AsyncKeyedLock, 2.0.0"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#addin nuget:?package=AsyncKeyedLock&version=2.0.0
                    
Install AsyncKeyedLock as a Cake Addin
#tool nuget:?package=AsyncKeyedLock&version=2.0.0
                    
Install AsyncKeyedLock as a Cake Tool

AsyncKeyedLock

An asynchronous .NET Standard 2.0 library that allows you to lock based on a key.

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))
{
	...
}

You can also set the maximum number of requests for the semaphore that can be granted concurrently (set to 1 by default):

var asyncKeyedLocker = new AsyncKeyedLocker(2);

If you would like to see how many concurrent requests there are for a semaphore for a given key:

int myCount = asyncKeyedLocker.GetCount(myObject);

And if for some reason you need to force release the requests in the semaphore for a key:

asyncKeyedLocker.ForceRelease(myObject);

You may also use Dependency Injection to inject an instance of AsyncKeyedLock.

Credits

This library is based on Stephen Cleary's solution.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
  • .NETStandard 2.0

    • No dependencies.

NuGet packages (42)

Showing the top 5 NuGet packages that depend on AsyncKeyedLock:

Package Downloads
EasyCaching.Core

EasyCaching is a open source caching library that contains basic usages and some advanced usages of caching which can help us to handle caching more easier!

Volo.Abp.DistributedLocking.Abstractions

Package Description

EFCoreSecondLevelCacheInterceptor

Entity Framework Core Second Level Caching Library.

N3O.Umbraco.Extensions

TODO

ZhileTime.Hope.DistributedLocking.Abstractions

Package Description

GitHub repositories (14)

Showing the top 14 popular GitHub repositories that depend on AsyncKeyedLock:

Repository Stars
jellyfin/jellyfin
The Free Software Media System - Server Backend & API
abpframework/abp
Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental infrastructure, cross-cutting-concern implementations, startup templates, application modules, UI themes, tooling and documentation.
Tyrrrz/DiscordChatExporter
Exports Discord chat logs to a file
microsoft/kiota
OpenAPI based HTTP Client code generator
stefanprodan/AspNetCoreRateLimit
ASP.NET Core rate limiting middleware
dotnetcore/EasyCaching
:boom: EasyCaching is an open source caching library that contains basic usages and some advanced usages of caching which can help us to handle caching more easier!
smartstore/Smartstore
A modular, scalable and ultra-fast open-source all-in-one eCommerce platform built on ASP.NET Core 7
VahidN/EFCoreSecondLevelCacheInterceptor
EF Core Second Level Cache Interceptor
omeryanar/FileExplorer
Windows File Explorer alternative with tab browsing
ForNeVeR/Cesium
C compiler for the CLI platform
ShokoAnime/Shokofin
Repository for Shokofin, a plugin that brings Shoko to Jellyfin.
vesoapp/veso
Open source media server.
VahidN/DNTCommon.Web.Core
DNTCommon.Web.Core provides common scenarios' solutions for ASP.NET Core applications.
sa-es-ir/DotNet.RateLimit
A Distributed RateLimit for Controller-Actions and Minimal API.
Version Downloads Last updated
7.1.6 26,364 4/12/2025
7.1.5-alpha 93 4/12/2025
7.1.4 454,437 11/22/2024
7.1.4-preview 110 11/22/2024
7.1.3 157,990 11/10/2024
7.0.2 146,228 10/13/2024
7.0.1 588,495 8/20/2024
7.0.0 115,725 7/21/2024
7.0.0-rc3 144 7/20/2024
7.0.0-rc2 141 7/20/2024
7.0.0-rc1 171 6/29/2024
7.0.0-beta 146 6/29/2024
7.0.0-alpha 144 6/29/2024
6.4.2 397,034 4/21/2024
6.4.1 1,801 4/21/2024
6.4.0 1,216 4/20/2024
6.3.4 1,973,315 1/23/2024
6.3.4-rc 604 1/23/2024
6.3.4-beta 565 1/23/2024
6.3.3 20,623 1/14/2024
6.3.2 1,812 1/14/2024
6.3.0 1,932 1/14/2024
6.2.6 20,337 1/1/2024
6.2.5 2,027 12/30/2023
6.2.4 89,187 12/6/2023
6.2.3 6,583 12/3/2023
6.2.3-beta 787 12/2/2023
6.2.2 904,687 10/9/2023
6.2.1 2,105,614 4/10/2023
6.2.0 99,527 2/25/2023
6.1.1 65,173 1/27/2023
6.1.1-rc 1,135 1/27/2023
6.1.1-beta 1,099 1/27/2023
6.1.0 18,545 1/26/2023
6.0.5 47,187 1/2/2023
6.0.5-alpha 1,127 12/30/2022
6.0.4 3,132 12/30/2022
6.0.4-rc6 1,097 12/30/2022
6.0.4-rc5 1,133 12/30/2022
6.0.4-rc3 1,103 12/30/2022
6.0.4-rc 1,067 12/29/2022
6.0.4-beta 1,137 12/29/2022
6.0.4-alpha 1,168 12/29/2022
6.0.3 3,643 12/29/2022
6.0.2 30,274 12/18/2022
6.0.1 3,045 12/17/2022 6.0.1 is deprecated because it has critical bugs.
5.1.2 4,126 12/16/2022
5.1.1 12,120 12/13/2022
5.1.0 4,977 12/3/2022
5.0.4 11,226 11/27/2022
5.0.3 3,556 11/26/2022
5.0.3-rc 1,138 11/26/2022
5.0.2-rc 1,095 11/26/2022
5.0.1 4,042 11/19/2022
4.0.2 8,313 11/13/2022
3.2.3 4,386 10/26/2022
3.2.1 3,385 10/23/2022
3.2.0 3,055 10/23/2022
3.0.1 3,580 10/18/2022
3.0.0 3,366 10/16/2022
2.0.3 17,512 6/29/2022 2.0.3 is deprecated because it has critical bugs.
2.0.2 18,384 3/13/2022 2.0.2 is deprecated because it has critical bugs.
2.0.1 3,468 3/13/2022 2.0.1 is deprecated because it has critical bugs.
2.0.0 3,548 3/11/2022 2.0.0 is deprecated because it has critical bugs.
1.1.0 4,738 12/11/2021 1.1.0 is deprecated because it has critical bugs.
1.0.1 3,510 11/22/2021
1.0.0 3,699 11/22/2021

No longer static; now requires you to create an instance and store it, or inject it via dependency injection.