I wish to launch an executable by API call, but I am not sure if one is supposed to check for executable bit using posix APIs before hand. What is best practice in this regard?

I am investigating the clock sources that common posix objects wait on. I am worried that our code is affected by time changes by user or services like ntp. It is mostly CLOCK_REALTIME or "just t...

I was wondering what object types are implemented as file descriptors in Posix/Unix. I could not find a list, so I looked at the references in man pages for close() and select() (because those are sup...

Im new to semaphores in C and I am making a programm to solve the writers readers problem for multiple writers and readers (My code isn't very clean so sory for that).First I initialize the semaphores...