explain_select_or_die(3)

💖 NAME 💖

explain_select_or_die — blah blah and report errors ✨

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🌸 SYNOPSIS 🌸

#include <libexplain/select.h>
void explain_select_or_die(int nfds, fd_set *readfds, fd_set *writefds,
fd_set *exceptfds, struct timeval *timeout);

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✨ DESCRIPTION ✨

okay bestie so explain_select_or_die is literally the function you call when you want to run the select(2) system call and have zero chill about what happens if it goes wrong. 💅

If it does fail, it prints an explanation straight to stderr — that explanation comes from explain_select(3) — and then it just ends the whole process by calling exit(EXIT_FAILURE). no second chances, no survivors, periodt. 💀

This function is meant to be used in a fashion similar to the following example, and yes you're gonna want to screenshot this:

explain_select_or_die(nfds, readfds, writefds, exceptfds, timeout);

Here's the cast of characters, each one exactly what it is:

• nfds — the nfds, exactly as to be passed to the select(2) system call. no notes.
• readfds — the readfds, exactly as to be passed to the select(2) system call. iconic.
• writefds — the writefds, exactly as to be passed to the select(2) system call. ate.
• exceptfds — the exceptfds, exactly as to be passed to the select(2) system call. slay.
• timeout — the timeout, exactly as to be passed to the select(2) system call. the main character, honestly.

Returns:

• This function only returns on success. 🫶
• On failure, it prints an explanation and exits. like, it's gone. bye. 😭

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🦋 SEE ALSO 🦋

• select(2) — blah blah
• explain_select(3) — explain select(2) errors
• exit(2) — terminate the calling process

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🎀 COPYRIGHT 🎀

libexplain version 1.4 Copyright (C) 2008 Peter Miller

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and that's the whole page, bestie — libexplain version 1.4, Copyright (C) 2008 Peter Miller, from the Library Functions Manual, all about explain_select_or_die(3) 💖✨ no cap, go read select(2) next, iykyk 🧚