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Async is a set of C++ primitives that allows you efficient and rapid development in c++17 on Linux systems. The focus is mostly on backend development, data processing, etc.

1. Dependency on abseil-cpp
2. Dependency on Boost 1.71
3. Uses ninja-build on top of cmake
4. Built artifacts are docker-friendly.
5. HTTP server implementation.
6. Fibers library and fiber-friendly synchronization primitives.

I will gradually add explanations for the most crucial blocks in this library.

> sudo ./install-dependencies.sh
> ./blaze.sh -release
> cd build-opt && ninja -j4 echo_server

third_party folder is checked out under build directories.

Then, from 2 tabs run:

  server> ./echo_server --logtostderr
  client> ./echo_server --connect=localhost --n 100000 --c=4

HTTP handler is implemented using Boost.Beast library. It's integrated with the io_uring-based ProactorPool. Please see http_main.cc, for example. HTTP also provides support for backend monitoring (Varz status page) and for an extensible debugging interface. With monitoring C++ backend returns JSON object that is formatted inside status page in the browser. To check how it looks, please go to localhost:8080 while echo_server is running.

Every http-powered backend has integrated CPU profiling capabilities using gperf-tools and pprof Profiling can be triggered in prod using magic-url commands. Enabled profiling usually has a very minimal impact on CPU performance of the running backend.

Logging is based on Google's glog library. The library is very reliable, performant, and solid. It has many features that allow resilient backend development. Unfortunately, Google's version has some bugs, which I fixed (waiting for review...), so I use my own fork. Glog library gives me the ability to control the logging levels of a backend at run-time without restarting it.

ASYNC uses a googletest+gmock unit-test environment.

Third_party packages have TRDP:: prefix in CMakeLists.txt. absl libraries have prefix absl::....