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_shmctl_or_die(3) FreeBSD Library Functions Manual explain_shmctl_or_die(3)

explain_shmctl_or_die - shared memory control and report errors

#include <libexplain/shmctl.h>

void explain_shmctl_or_die(int shmid, int command, struct shmid_ds *data);
int explain_shmctl_on_error(int shmid, int command, struct shmid_ds *data);

The explain_shmctl_or_die function is used to call the shmctl(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_shmctl(3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_shmctl_on_error function is used to call the shmctl(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_shmctl(3) function, but still returns to the caller.

shmid
The shmid, exactly as to be passed to the shmctl(2) system call.
command
The command, exactly as to be passed to the shmctl(2) system call.
data
The data, exactly as to be passed to the shmctl(2) system call.

The explain_shmctl_or_die function only returns on success, see shmctl(2) for more information. On failure, prints an explanation and exits, it does not return.

The explain_shmctl_on_error function always returns the value return by the wrapped shmctl(2) system call.

The explain_shmctl_or_die function is intended to be used in a fashion similar to the following example:
explain_shmctl_or_die(shmid, command, data);

shmctl(2)
shared memory control
explain_shmctl(3)
explain shmctl(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.