SEM_WAIT(3P)

💖 PROLOG 💖

okay so first thing, bestie, this page is part of the POSIX Programmer's Manual — like, it's the official standards-committee version, not the Linux one. The Linux implementation of this interface may differ (so fr fr, go check the corresponding Linux manual page if that's the behaviour you actually care about), or honestly the interface may not be implemented on Linux at all. 🙈 No cap.

✨ NAME ✨

sem_wait — lock a semaphore 🔒

🎀 SYNOPSIS 🎀

#include <semaphore.h>

int sem_wait(sem_t *sem);

🦋 DESCRIPTION 🦋

sooo this one is a little shy — it just says: refer to sem_trywait(). That's it. That's the whole description. Go read sem_trywait() for the actual tea, iykyk. 🫶

👑 COPYRIGHT 👑

okay this part is the legal girlies talking, so let's keep it exactly right 💅:

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group.

If there's ever any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. Periodt. That's the one that wins.

The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

Any typographical or formatting errors that show up in this page are most likely to have been introduced during the conversion of the source files to man page format 😭. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

🌸 that's the whole page, bestie — short and iconic. This one's from IEEE/The Open Group, dated 2017, and it's SEM_WAIT(3P) in the POSIX Programmer's Manual. mwah, go lock a semaphore responsibly 💖🦋