Boost.Beast VS CMake

There is at least one notable exception to this rule: https://github.com/boostorg/beast/issues/1445

I am using this example : https://github.com/boostorg/beast/blob/develop/example/websocket/client/async-ssl/websocket_client_async_ssl.cpp My application is listening to tick data streams of crypto exchanges over the websockets and processing and sending orders to the exchange.

We used beast to implement a market data server(and I think we also did a small client, to test it) which was sending protobuf messages, and it worked great(we also used boost adio, which made it very scalable). When we tested the server, we were generating around 100k messages per second(when there was the biggest activity on the market), I think I've posted here some stats: https://github.com/boostorg/beast/issues/2313.

Boost Beast?

And Chris wrote this example, which is faster than any of my other examples: https://github.com/boostorg/beast/tree/21cd552399aa8167ed53c21a74f3711c2c316d2f/example/http/server/fast

cmake -h. -Bbuild && cmake --build build

to work about 90% of the time. Far more luck than I've had with autotools.

> Its code is horrifying too, for example:

1) I'm sure I could find some horriffic code in meson too if I went digging. 2) The alternative to this is you having to write something equivalent in your own code, meaning that in my code I don't need to do stuff like [0] in my code to detect features; my build system handles it for me. 3) CMake supports more platforms and targets than I've ever seen in my life, and likely supports more compilers than are necessary. that's a blessing and a curse, but it means that if I write simple program to run on some crufty microcontroller with a bastardised gcc toolchain from the 90s, it's fairly likely that cmake supports it out of the box. Code like that is the price to pay for that level of support.

[0] https://github.com/boostorg/beast/blob/b7344b0d501f23f763a76...

If you need an embedded C++ HTTP server then there are plenty of libraries/frameworks (in random order): Crow, RESTinio, Boost.Beast, cpp-httplib, http_backend, Pistache, RestBed, served, proxygen, Simple-Web-Server, drogon, oat++.

I thought I would share my custom installer script for the latest GitHub versions of CMake, Ninja, and Meson.

The same thing probably applies if you use the FindGlut.cmake module which is documented here: https://cmake.org/cmake/help/latest/module/FindGLUT.html

building cmake - version 3.26.3 ==================================== Downloading https://github.com/kitware/cmake/archive/refs/tags/v3.26.3.tar.gz as cmake-3.26.3.tar.gz Download Completed File extracted: cmake-3.26.3.tar.gz $ ./configure --prefix=/root/ffmpeg-build-script/workspace --parallel=40 --enable-ccache -- -DCMAKE_USE_OPENSSL=OFF $ make -j 40

find_package(Python3 ...) will look for a file FindPython3.cmake shipped with CMake. I urge you to try to go over its contents to get an idea of what it does underneath.

The file FindSomePKG.cmake (module approach) is supposed to be written either by you (you write it manually and put in a cmake subdirectory in your git repo) or it's an official package file shipped along with CMake, e.g FindOpenSSL.cmake with documentation here.

sudo apt-get install build-essential libncurses5-dev gnutls-dev bison zlib1g-dev ccache libssl-dev # Get cmake # Downloaded under ~/ wget https://github.com/Kitware/CMake/releases/download/v3.25.2/cmake-3.25.2.tar.gz cd cmake-3.25.2 ~/cmake-3.25.2 $ ./bootstrap ~/cmake-3.25.2 $ make ~/cmake-3.25.2 $ sudo make install

Note that `assert`s are disabled if you define the macro `NDEBUG`, e.g. https://godbolt.org/z/hMWo8KM7q

CMake adds these flags to release builds: https://github.com/Kitware/CMake/blob/e1eacbe2c522a8bf9a82af...

Would be nice to have a non-macro solution for controlling behavior at configure time, but the `NDEBUG` macro is basically already your `DEBUG` constexpr.

It's open-source. It might get merged in!

FROM node:16 WORKDIR /cmake COPY cmake-3.25.0-rc4-linux-x86_64.sh ./ # OR # RUN apt update && apt install -y g++ wget bash # RUN wget https://github.com/Kitware/CMake/releases/download/v3.25.0-rc4/cmake-3.25.0-rc4-linux-x86_64.sh RUN ./cmake-3.25.0-rc4-linux-x86_64.sh --skip-license && rm cmake-3.25.0-rc4-linux-x86_64.sh ENV PATH="$PATH:/cmake/bin" WORKDIR /app RUN npm i [email protected] COPY package.json . COPY package-lock.json . RUN npm --verbose i COPY . . RUN npm --verbose run build