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| 1 | .TH SETSID 2
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| 2 | .SH NAME
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| 3 | setsid, getpgrp \- create process group, get process group id
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| 4 | .SH SYNOPSIS
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| 5 | .ft B
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| 6 | .nf
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| 7 | #include <sys/types.h>
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| 8 | #include <unistd.h>
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| 9 |
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| 10 | pid_t setsid(void)
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| 11 | pid_t getpgrp(void)
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| 12 | .fi
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| 13 | .ft P
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| 14 | .SH DESCRIPTION
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| 15 | .B Setsid()
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| 16 | creates a new session if the calling process is not already a session
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| 17 | leader. The calling process becomes the session leader of a new process
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| 18 | group and the process group ID of this new process group will be equal to
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| 19 | the process ID of the new session leader. The process group ID is inherited
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| 20 | on a
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| 21 | .BR fork (2).
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| 22 | .PP
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| 23 | .B Getpgrp()
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| 24 | returns the process group ID of the calling process.
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| 25 | .SH "SEE ALSO"
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| 26 | .BR kill (2),
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| 27 | .BR termios (3),
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| 28 | .BR tty (4).
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| 29 | .SH DIAGNOSTICS
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| 30 | .B Setsid()
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| 31 | returns the new process group ID on success, or \-1 with
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| 32 | .B errno
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| 33 | set to
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| 34 | .B EPERM
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| 35 | if the process is already a session leader.
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| 36 | .SH AUTHOR
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| 37 | Kees J. Bot (kjb@cs.vu.nl)
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| 38 |
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| 39 | .\"
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| 40 | .\" $PchId: setsid.2,v 1.2 1996/04/11 06:06:36 philip Exp $
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