io_closeonexec(3)

✨ NAME ✨

okay so bestie, we're in the Library Functions Manual and this page is all about io_closeonexec — mark a file descriptor non-inheritable. tiny name, very specific job, we love that for us. 💅

📜 SYNTAX 📜

#include <libowfat/io.h>

void io_closeonexec(int64 fd);

💖 DESCRIPTION 💖

io_closeonexec marks a file descriptor non-inheritable. it will be automatically closed if the process executes a different one. so that fd is not tagging along into the new program, periodt. ✨

but lowkey important: the descriptor will not be automatically closed when you fork() a new child process, though. so fork keeps it around, exec yeets it — that's the distinction, bestie. 🦋

👀 SEE ALSO 👀

• io_wait(3)
• io_canwrite(3)

that's the whole page, babe — source: Library Functions Manual, version/date: not shown on this copy, page: io_closeonexec(3). no extra meta tea, just close-on-exec excellence. stay slay and keep those fds in line. 💖✨🫶