Top 8 C++ asynchronous-programming Projects

drogon

18 10,751 9.0 C++

Drogon: A C++14/17/20 based HTTP web application framework running on Linux/macOS/Unix/Windows

Project mention: Experience using crow as web server | /r/cpp | 2023-11-06

I looked at oatpp and drogon, which are both great, but feel too high-level for my purposes. I tried drogon and got something working, but it feels like too much for my requirements, as in particular I'd like to slot in my choice of Json and message-body handling. C.f. the simple approach in Crow, which I easily understand and build on.

cppcoro

24 3,230 0.0 C++

A library of C++ coroutine abstractions for the coroutines TS

Project mention: Struggle with C++ 20 Coroutines | /r/cpp_questions | 2023-05-13

PS: Take a look at cppcoro; this might help as well, especially generator<>, if you're looking to generate numbers, and stuff;

InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
concurrencpp

16 2,047 1.2 C++

Modern concurrency for C++. Tasks, executors, timers and C++20 coroutines to rule them all

Project mention: Is anyone using coroutines seriously? | /r/cpp | 2023-12-05

I am using concurrencpp for my project. What I like about it is that it's basically a thread pool factory with coroutines. It allows for better structuring / organizing of multithreaded work. So for me the main advantage of coroutines is that the code looks easier to follow

trantor

1 364 7.7 C++

a non-blocking I/O tcp network lib based on c++14/17
asio-grpc

4 323 9.0 C++

Asynchronous gRPC with Asio/unified executors
Lazy

5 109 2.6 C++

Light-weight header-only library for parallel function calls and continuations in C++ based on Eric Niebler's talk at CppCon 2019.
zab

3 64 0.0 C++

C++20 liburing backed coroutine executor and event loop framework.
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
atrip

1 3 7.0 C++

High Performance library for the CCSD(T) algorithm in quantum chemistry

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).