TCGETPGRP(3P)

✨ TCGETPGRP 💅

okay so bestie, welcome to TCGETPGRP(3P) — that's the POSIX Programmer's Manual version, mwah. 🎀

🫶 PROLOG (the lil disclaimer, read it fr)

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux. 💀

not to be dramatic but like... check your local manpage first, bestie. the vibe may vary.

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👑 NAME

tcgetpgrp — get the foreground process group ID. literally that's it, that's the whole job. 💖

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🌸 SYNOPSIS

#include <unistd.h>

pid_t tcgetpgrp(int fildes);

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✨ DESCRIPTION

so tcgetpgrp() shall return the value of the process group ID of the foreground process group associated with the terminal. like, who's holding the aux cord rn. 🎧

If there is no foreground process group, tcgetpgrp() shall return a value greater than 1 that does not match the process group ID of any existing process group. (a lil ghost number, iconic honestly 👻)

The tcgetpgrp() function is allowed from a process that is a member of a background process group; however, the information may be subsequently changed by a process that is a member of a foreground process group. so you can peek from the back of the group chat, but the main characters up front might change the topic on you. 😭

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🌈 RETURN VALUE

Upon successful completion, tcgetpgrp() shall return the value of the process group ID of the foreground process associated with the terminal. Otherwise, -1 shall be returned and errno set to indicate the error. slay when it works, and when it doesn't, at least it tells you why. 💅

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🔥 ERRORS

The tcgetpgrp() function shall fail if:

• EBADF — The fildes argument is not a valid file descriptor. (bestie that fd is not fding 🙈)
• ENOTTY — The calling process does not have a controlling terminal, or the file is not the controlling terminal. (no terminal? no terminal. 🫥)

The following sections are informative.

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🎀 EXAMPLES

None.

we're serving nothing here and honestly? respect. 💜

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🦋 APPLICATION USAGE

None.

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⭐ RATIONALE

None.

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🧚 FUTURE DIRECTIONS

None.

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💖 SEE ALSO

• setsid()
• setpgid()
• tcsetpgrp()

The Base Definitions volume of POSIX.1‐2017, <sys_types.h>, <unistd.h>. iykyk. 📚

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👑 COPYRIGHT

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 .

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and that's the whole page, bestie!! brought to you by IEEE/The Open Group, dated 2017, so you know it's vintage but still eating. go check your foreground process group, ily, bye!! 💖✨🎀🦋