StephenCleary/AsyncEx

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

3724 stars · 373 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A C# helper library providing async-compatible coordination primitives for async/await code, such as AsyncLock, AsyncSemaphore, and AsyncManualResetEvent. It targets netstandard1.3/2.0 and is distributed via the Nito.AsyncEx NuGet package.

Use cases

• lock asynchronously in C# without blocking threads
• use a semaphore or manual reset event with await
• synchronize async code with cancellation support
• replace lock statements in async methods
• coordinate async tasks with reader-writer locks

When to choose

• you write async/await C# code and need async-compatible locking or signaling primitives
• you need cancellation-aware synchronization in .NET
• you target .NET Core, .NET Framework 4.6+, Xamarin, or UWP

When to avoid

• your code is purely synchronous and standard lock/Monitor suffices
• you need primitives not covered by the library and prefer building custom solutions
• you are on a platform below netstandard1.3

Facets

library · maturity maintenance

concurrency developer-tools developer-tools dotnet cross-platform async-await csharp async-lock coordination-primitives task algorithms

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