Yesterday I wrote a blog post talking about Event Loops, this was a pre-cursor to discussing where I am using them in an application I’m currently developing which uses NCurses at its core.
Unfortunately the application is an R&D project and is not public yet (still very early in development), but it is written in C, has a TUI front end and handles many windows and network connections simultaneously so I am using libuv heavily underneath. For this post I’ll be discussing the integration between libuv and NCurses.
Continue reading Event Loops and NCurses
The concept of event loops is not new in programming, but I think it is still a really important technique to learn. They allow a program to send a request for something and carry on doing things rather than waiting on things to happen. It is a great way of multi-tasking in a single thread but there are some gotchas to be aware of.
In this blog post I’ll give a short intro to event loops and how to get the most out of them.
Continue reading Event Loop Programming: A Different Way of Thinking
Valgrind is an incredibly powerful tool which helps find leaks, buffer overflows and many other things. Whilst being extremely powerful it can also be very slow. As an alternative there are little known tools that are available for Clang and GCC which can fulfil similar functions for your C / C++ applications but with much higher performance.
I’ve had several people ask me about the sanitizers recently and how to use them, so I’ll cover some basics here.
Continue reading Sanitizers, The Alternative To Valgrind
Whilst porting code between Linux and macOS I have come across two issues which make assumptions about how something works but in reality different implementations of libc handle them differently. In this post I’ll talk about recent issues I faced with
Continue reading POSIX File Handling and Undefined Behaviour
fclose() in codebases.
You may be familiar with variadic functions in C, these are basically functions that allow a variable number of parameters, they are normally written like this:
void my_print_func(const char *format, ...)
Obviously you can do more with them and they are very useful, but if you want to have one function calling another things can get complicated. This post explores the problem and a couple of ways of solving it.
Continue reading Nested Variadic Functions in C
I’m in the middle of developing a project in C which uses NCurses and Unicode 7+ characters. This has been working out great in macOS and Fedora 31 where I have been doing most of my testing. But in CentOS I have been having big problems getting the characters to render. This post goes into why and how to fix it.
Continue reading Unicode 7 in CentOS 7 TUI Code