Embedded Programming with Modern C++ Cookbook

How it works...

In our application, we explore data exchange between two independent processes using a shared file in a filesystem. One process writes data to a file, another reads data from the same file.

Files can store any unstructured sequences of bytes. In our application, we utilize the C++ templates' capabilities to work with strictly typed C++ values rather than raw byte streams. This approach helps in writing clean and error-free code.

We start with a definition of the Write class. It is a simple wrapper on top of the standard C++ fstream class used for file input/output. The constructor of the class only opens a file stream to write the following:

Writer(std::string& name):      out(name, std::ofstream::binary) {}

Besides the constructor, ...