|
GETSID (2) | System calls | Unix Manual Pages | :man▋
NAME
getsid - get process session
CONTENTS
Library
Synopsis
Description
Return Values
Errors
See Also
History
LIBRARY
.Lb libc
SYNOPSIS
.In 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 getsid system call returns the session ID of the specified process; otherwise, it returns a value of -1 and sets errno to indicate an error.
ERRORS
The getsid system call will succeed unless: | [ESRCH] | | | if there is no process with a process ID equal to pid. | |
Note that an implementation may restrict this system 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
|
