opendarwin man page for setsid

Query: setsid

OS: opendarwin

Section: 2

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

SETSID(2)						      BSD System Calls Manual							 SETSID(2)

NAME
setsid -- create session and set process group ID
SYNOPSIS
#include <sys/types.h> #include <unistd.h> pid_t setsid(void);
DESCRIPTION
The setsid function creates a new session. The calling process is the session leader of the new session, is the process group leader of a new process group and has no controlling terminal. The calling process is the only process in either the session or the process group. Upon successful completion, the setsid function returns the value of the process group ID of the new process group, which is the same as the process ID of the calling process.
ERRORS
If an error occurs, setsid returns -1 and the global variable errno is set to indicate the error, as follows: [EPERM] The calling process is already a process group leader, or the process group ID of a process other than the calling process matches the process ID of the calling process.
SEE ALSO
setpgid(3), tcgetpgrp(3), tcsetpgrp(3)
STANDARDS
The setsid function is expected to be compliant with the IEEE Std 1003.1-1988 (``POSIX.1'') specification.
BSD
June 4, 1993 BSD
Related Man Pages
setsid(2) - debian
setsid(2) - centos
setsid(2) - opendarwin
setsid(2) - osf1
setsid(2) - sunos
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