- Paho libaries (c, c++) are linked statically
- OpenSSL and Standard C libaries are linked dynamically
Within the codespace instance a mosquitto MQTT broker is started automatically for testing. See folder test for configuration and folder .devcontainer for start-up commands.
(You will need a github account to do so)
After the codespace instance has started it ask you to choose your tool chain. Click von the marked entry
Then you may recognize that in one of the console windows the log output of a mosquitto broker can be observed. The configuration of this instance is taken from the file ./test/mosquitto.conf
To be ready for compilation you have to choose the configuration from the bottom menu. Choose either Degub or Release.
Then click on "Run" which will first ask for the build target choose 'cpp-mqtt'
The build process will first fetch the git submodules for the Paho C/C++ client libaries, build the application and finaly create a self-signed certififcate for the use of TLS.
You can then see the sample application running and watch the different print outs
If you prefer to see and use the sample code on your own environment on a local PC clone the source code from here and proceed like this.
git clone https://github.com/charlie388/cpp-mqtt.git
cd cpp-mqtt
# create makefiles (test on ubuntu 16.04)
cmake -S ./ -Bbuild -G Ninja
# build
cmake --build ./build --target all --This will create an executable application named cpp-mqtt in the build folder.
Read here the corresponding blog post: https://cedalo.com/blog/implement-paho-mqtt-c-cmake-project/
- CMake is set up only for compiling and running on Linux OS. To cross-build and/or run on Windows modifications are necessary for the linked libraries.