Mac Developer Library Developer
Search

 

This manual page is part of Xcode Tools version 5.0

To obtain these tools:

If you are running a version of Xcode Tools other than 5.0, view the documentation locally:

  • In Xcode

  • In Terminal, using the man(1) command

Reading manual pages

Manual pages are intended as a quick reference for people who already understand a technology.

  • To learn how the manual is organized or to learn about command syntax, read the manual page for manpages(5).

  • For more information about this technology, look for other documentation in the Apple Developer Library.

  • For general information about writing shell scripts, read Shell Scripting Primer.




GETSID(2)                   BSD System Calls Manual                  GETSID(2)

NAME
     getsid -- get process session

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <unistd.h>

     pid_t
     getsid(pid_t pid);

DESCRIPTION
     The session ID of the process identified by pid is returned by getsid().  If pid is zero, getsid()
     returns the session ID of the current process.

RETURN VALUES
     Upon successful completion, the function getsid() returns the session ID of the specified process; oth-erwise, otherwise,
     erwise, it returns a value of -1 and sets errno to indicate an error.

ERRORS
     The getsid() system call will fail if:

     [ESRCH]            There is no process with a process ID equal to pid.

     Note that an implementation may restrict this function call to processes within the same session ID as
     the calling process.

SEE ALSO
     getpgid(2), getpgrp(2), setpgid(2), setsid(2), termios(4)

HISTORY
     The getsid() function call appeared in FreeBSD 3.0.  The getsid() function call is derived from its
     usage in AT&T System V UNIX.

BSD                             August 19, 1997                            BSD

Reporting Problems

The way to report a problem with this manual page depends on the type of problem:

Content errors
Report errors in the content of this documentation with the feedback links below.
Bug reports
Report bugs in the functionality of the described tool or API through Bug Reporter.
Formatting problems
Report formatting mistakes in the online version of these pages with the feedback links below.

Feedback