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@c
@c COPYRIGHT (c) 1988-1999.
@c On-Line Applications Research Corporation (OAR).
@c All rights reserved.
@c
@c $Id$
@c
@chapter Process Environment Manager
@section Introduction
The process environment manager is ...
The directives provided by the process environment manager are:
@itemize @bullet
@item @code{getpid} - Get Process ID
@item @code{getppid} - Get Parent Process ID
@item @code{getuid} - Get User ID
@item @code{geteuid} - Get Effective User ID
@item @code{getgid} - Get Real Group ID
@item @code{getegid} - Get Effective Group ID
@item @code{setuid} - Set User ID
@item @code{setgid} - Set Group ID
@item @code{getgroups} - Get Supplementary Group IDs
@item @code{getlogin} - Get User Name
@item @code{getlogin_r} - Reentrant Get User Name
@item @code{getpgrp} - Get Process Group ID
@item @code{setsid} - Create Session and Set Process Group ID
@item @code{setpgid} - Set Process Group ID for Job Control
@item @code{uname} - Get System Name
@item @code{times} - Get Process Times
@item @code{getenv} - Get Environment Variables
@item @code{setenv} - Set Environment Variables
@item @code{ctermid} - Generate Terminal Pathname
@item @code{ttyname} - Determine Terminal Device Name
@item @code{ttyname_r} - Reentrant Determine Terminal Device Name
@item @code{isatty} - Determine if File Descriptor is Terminal
@item @code{sysconf} - Get Configurable System Variables
@end itemize
@section Background
There is currently no text in this section.
@section Operations
There is currently no text in this section.
@section Directives
This section details the process environment manager's directives.
A subsection is dedicated to each of this manager's directives
and describes the calling sequence, related constants, usage,
and status codes.
@c
@c
@c
@page
@subsection getpid - Get Process ID
@findex getpid
@cindex get process id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getpid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection getppid - Get Parent Process ID
@findex getppid
@cindex get parent process id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getppid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection getuid - Get User ID
@findex getuid
@cindex get user id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getuid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection geteuid - Get Effective User ID
@findex geteuid
@cindex get effective user id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int geteuid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection getgid - Get Real Group ID
@findex getgid
@cindex get real group id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getgid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection getegid - Get Effective Group ID
@findex getegid
@cindex get effective group id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getegid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection setuid - Set User ID
@findex setuid
@cindex set user id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int setuid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection setgid - Set Group ID
@findex setgid
@cindex set group id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int setgid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection getgroups - Get Supplementary Group IDs
@findex getgroups
@cindex get supplementary group ids
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getgroups(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection getlogin - Get User Name
@findex getlogin
@cindex get user name
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getlogin(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection getlogin_r - Reentrant Get User Name
@findex getlogin_r
@cindex reentrant get user name
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getlogin_r(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection getpgrp - Get Process Group ID
@findex getpgrp
@cindex get process group id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getpgrp(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection setsid - Create Session and Set Process Group ID
@findex setsid
@cindex create session and set process group id
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int setsid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection setpgid - Set Process Group ID for Job Control
@findex setpgid
@cindex set process group id for job control
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int setpgid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection uname - Get System Name
@findex uname
@cindex get system name
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int uname(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection times - Get process times
@findex times
@cindex get process times
@subheading CALLING SEQUENCE:
@example
#include <sys/time.h>
clock_t times(
struct tms *buf
);
@end example
@subheading STATUS CODES:
This routine returns the process times
@subheading DESCRIPTION:
@code{times} stores the current process times in @code{buf}.
@code{struct tms} is as defined in @code{/usr/include/sys/times.h}
@code{times} returns the number of clock ticks that have elapsed
since the systm has been up.
@subheading NOTES:
NONE
@c
@c
@c
@page
@subsection getenv - Get Environment Variables
@findex getenv
@cindex get environment variables
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int getenv(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection setenv - Set Environment Variables
@findex setenv
@cindex set environment variables
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int setenv(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection ctermid - Generate Terminal Pathname
@findex ctermid
@cindex generate terminal pathname
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int ctermid(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection ttyname - Determine Terminal Device Name
@findex ttyname
@cindex determine terminal device name
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int ttyname(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection ttyname_r - Reentrant Determine Terminal Device Name
@findex ttyname_r
@cindex reentrant determine terminal device name
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int ttyname_r(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection isatty - Determine if File Descriptor is Terminal
@findex isatty
@cindex determine if file descriptor is terminal
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int isatty(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
@c
@c
@c
@page
@subsection sysconf - Get Configurable System Variables
@findex sysconf
@cindex get configurable system variables
@subheading CALLING SEQUENCE:
@ifset is-C
@example
int sysconf(
);
@end example
@end ifset
@ifset is-Ada
@end ifset
@subheading STATUS CODES:
@table @b
@item E
The
@end table
@subheading DESCRIPTION:
@subheading NOTES:
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