existedinnettw / pub_sub_cpp

try to implement pub sub in cpp, and later in pure c

pub_sub_cpp

Validating pub sub implementation concept in cpp, and later in pure c.

This project is try to implement a pub sub pattern within a process across multiple thread and whole program.
It's validation in cpp and targeting to be finally implemented in c for MCU project with or without RTOS.

structure

Whenever

1. publisher publish,
2. subscriber regist,
3. subscriber unregist,
   we need an entry lock to prevent multithread operation at the same time.

The important thing here is broker doesn't need to know topic data type. But on the other side, it means you have to assign the template datatype right.

other possible structure

The structure below take a further step to prevent lock during publishing. If we put a ring buffer before notifing all the client, then problem solves. However, this method require additional thread to handle streaming, which introduce non-necessary complexity for MCU.