GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
explain_getpgid_or_die(3) FreeBSD Library Functions Manual explain_getpgid_or_die(3)

explain_getpgid_or_die - get process group and report errors

#include <libexplain/getpgid.h>
pid_t explain_getpgid_or_die(pid_t pid);
 
pid_t explain_getpgid_on_error(pid_t pid);

The explain_getpgid_or_die function is used to call the getpgid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_getpgid(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_getpgid_on_error function is used to call the getpgid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_getpgid(3) function, but still returns to the caller.
pid
The pid, exactly as to be passed to the getpgid(2) system call.

The explain_getpgid_or_die function only returns on success, see getpgid(2) for more information. On failure, prints an explanation and exits, it does not return.
The explain_getpgid_on_error function always returns the value return by the wrapped getpgid(2) system call.

The explain_getpgid_or_die function is intended to be used in a fashion similar to the following example:
pid_t result = explain_getpgid_or_die(pid);

getpgid(2)
get process group
explain_getpgid(3)
explain getpgid(2) errors
exit(2)
terminate the calling process

libexplain version 1.3
 
Copyright (C) 2011 Peter Miller

Search for    or go to Top of page |  Section 3 |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.