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1999-08-15  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* manual/job.texi (Process Group Functions): Document getpgid,
	getsid.
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Ulrich Drepper 1999-08-15 20:07:30 +00:00
parent 3a9eb648bb
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5
ChangeLog
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@ -1,3 +1,8 @@
1999-08-15 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* manual/job.texi (Process Group Functions): Document getpgid,
getsid.
1999-08-15 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/aio_sigqueue.c: Take extra parameter and

45
manual/job.texi
View file

@ -1095,6 +1095,29 @@ already another process group around that has the same process group ID.
@end table
@end deftypefun
@comment unistd.h
@comment SVID
@deftypefun pid_t getsid (pid_t @var{pid})
The @code{getsid} function returns the process group ID of the session
leader of the specified process. If a @var{pid} is @code{0}, the
process group ID of the session leader of the current process is
returned.
In case of error @code{-1} is returned and @code{errno} is set. The
following @code{errno} error conditions are defined for this function:
@table @code
@item ESRCH
There is no process with the given process ID @var{pid}.
@item EPERM
The calling process and the process specified by @var{pid} are in
different sessions, and the implementation doesn't allow to access the
process group ID of the session leader of the process with ID @var{pid}
from the calling process.
@end table
@end deftypefun
The @code{getpgrp} function has two definitions: one derived from BSD
Unix, and one from the POSIX.1 standard. The feature test macros you
have selected (@pxref{Feature Test Macros}) determine which definition
@ -1123,6 +1146,28 @@ process @var{pid}. You can supply a value of @code{0} for the @var{pid}
argument to get information about the calling process.
@end deftypefn
@comment unistd.h
@comment SVID
@deftypefn {System V Function} int getpgid (pid_t @var{pid})
@code{getpgid} is the same as the BSD function @code{getpgrp}. It
returns the process group ID of the process @var{pid}. You can supply a
value of @code{0} for the @var{pid} argument to get information about
the calling process.
In case of error @code{-1} is returned and @code{errno} is set. The
following @code{errno} error conditions are defined for this function:
@table @code
@item ESRCH
There is no process with the given process ID @var{pid}.
The calling process and the process specified by @var{pid} are in
different sessions, and the implementation doesn't allow to access the
process group ID of the process with ID @var{pid} from the calling
process.
@end table
@end deftypefun
@comment unistd.h
@comment POSIX.1
@deftypefun int setpgid (pid_t @var{pid}, pid_t @var{pgid})