PTHREAD_SELF(3P)

📦 version 2017a, in alpine 3.22, alpine 3.23, alpine 3.24, arch rolling, nixpkgs unstable, opensuse-leap 16.0

💖 PTHREAD_SELF(3P) 💖

okay so bestie, we're in the POSIX Programmer's Manual today (yes the whole POSIX Programmer's Manual, not just some random Linux page) and we're talking about pthread_self — the girlboss of "wait, who am I?"

🌸 PROLOG 🌸

so like, heads up before we even start:

  • This manual page is part of the POSIX Programmer's Manual.
  • The Linux implementation of this interface may differ — so go check the corresponding Linux manual page if you need the Linux deets.
  • Or honestly? The interface might not even be implemented on Linux at all. 🙈

✨ NAME ✨

pthread_self — get the calling thread ID 💅

🎀 SYNOPSIS 🎀

#include <pthread.h>

pthread_t pthread_self(void);

that's it. that's the whole vibe. no args, no drama. 🦋

💜 DESCRIPTION 💜

The pthread_self() function shall return the thread ID of the calling thread.

like... it looks in the mirror and tells you who you are. main character energy fr fr. 👑

⭐ RETURN VALUE ⭐

The pthread_self() function shall always be successful, and no return value is reserved to indicate an error.

not a single error path. she simply does not fail. iconic. 🔥

💀 ERRORS 💀

No errors are defined.

The following sections are informative.

(so like, there's literally nothing to catch here. no errno, no crying, no nothing. 😭)

🌈 EXAMPLES 🌈

None.

🫶 APPLICATION USAGE 🫶

None.

🧚 RATIONALE 🧚

so here's the lore: pthread_self() provides a capability similar to the getpid() function for processes, and the rationale is the same — the creation call does not provide the thread ID to the created thread.

basically the baby thread gets born and nobody hands it a name tag, so it has to go get one itself. periodt. 💖

🦋 FUTURE DIRECTIONS 🦋

None.

👑 SEE ALSO 👑

  • pthread_create()
  • pthread_equal()
  • The Base Definitions volume of POSIX.1‐2017, <pthread.h>

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.

In the event of 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.

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

Any typographical or formatting errors that appear 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 .

and that's the whole page bestie!! brought to you by IEEE/The Open Group, 2017 — mwah, take care of ur threads, ily, bye!! 💖✨🎀🦋

📦 where this page comes from