03-19-2020
9 More Discussions You Might Find Interesting
1. Solaris
We have bunch of Sun Sparc workstations(solaris 7 & 8) connecting to a linux file server with NFS exports. Recently we upgraded our file server from fedora core1 to redhat enterprise linux 4. And since then we are experiencing a nightmare of file/dir missing. It happens randomly, couple of times... (1 Reply)
Discussion started by: motor98
1 Replies
2. Filesystems, Disks and Memory
We have a Slackware 9.1 box that our ASP controls. We use it to see the logging of our Weblogic-clusters.
All the logging is auto-mounted in /rmt which is fine, as long as you know the names of the mountpoints. When you don't access the mountpoints for a certain period of time, the mountpoint... (0 Replies)
Discussion started by: indo1144
0 Replies
3. Shell Programming and Scripting
Hi all... I-m quite a new user of UNIX and i was trying to write a simple program and my problem is the following:how can i make a typed letter disappear (as we see in the MORE command, when we type <space>, b, q etc...) i know that for typing some text that has to be read it's used the structure:... (0 Replies)
Discussion started by: Cellofan
0 Replies
4. Ubuntu
My PC (Esprimo, 3 yeas old) has one hard drive having 2 partitions C: (80 GB NTFS, XP) and D: (120 GB NTFS, empty) and and a 200 MB area that yet is not-partitioned.
I would like to try Ubuntu and to install Ubuntu on the not-partitioned area . The idea is to have the possibility to run... (7 Replies)
Discussion started by: C.Weidemann
7 Replies
5. UNIX and Linux Applications
I have set a mysql file to excute everyday morning to generate a html file displayng 2 tables from the database. Sometime they cannot be shown, and it shows the tables are not existed. I have not drop any table, and those 2 tables are not used by any other excution. Anybody know what is happening?... (0 Replies)
Discussion started by: c203040
0 Replies
6. Linux
Hi all,
I'm kind of new to programming in Linux & c/c++. I'm currently writing a FileManager using Ubuntu Linux(10.10) for Learning Purposes. I've got started on this project by creating a loopback device to be used as my virtual hard disk. After creating the loop back hard disk and mounting it... (23 Replies)
Discussion started by: shen747
23 Replies
7. Linux
Dear all, I lost my CentOS 6.4, Systems default bar/panel where we navigate our system for the Applications, Places & System, Is there anyone who can help me please??? (1 Reply)
Discussion started by: saqlain.bashir
1 Replies
8. Red Hat
Hello,
1 ) Fdisk -l # Displays all the disk with partition table information
My Query )
A ) How can i make one disk ex: /dev/sdd not visible in fdisk -l output ?
B) From where fdisk -l collect and display the information ? (8 Replies)
Discussion started by: saurabh84g
8 Replies
9. Shell Programming and Scripting
#!/bin/sh
PATH_1=$PATH
echo "PATH_1 is " $PATH_1
function user_func (){
whoami
export PATH=$PATH_1:/usr/local/bin
echo "PATH is" $PATH
exit
}
export -f user_func
su -m hadoop -c 'user_func'
from out put, PATH is not set with PATH_1 append ( it's not another user to run the... (5 Replies)
Discussion started by: yanglei_fage
5 Replies
LEARN ABOUT CENTOS
sigsetjmp
SETJMP(3) Linux Programmer's Manual SETJMP(3)
NAME
setjmp, sigsetjmp - save stack context for nonlocal goto
SYNOPSIS
#include <setjmp.h>
int setjmp(jmp_buf env);
int sigsetjmp(sigjmp_buf env, int savesigs);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
setjmp(): see NOTES.
sigsetjmp(): _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_C_SOURCE
DESCRIPTION
setjmp() and longjmp(3) are useful for dealing with errors and interrupts encountered in a low-level subroutine of a program. setjmp()
saves the stack context/environment in env for later use by longjmp(3). The stack context will be invalidated if the function which called
setjmp() returns.
sigsetjmp() is similar to setjmp(). If, and only if, savesigs is nonzero, the process's current signal mask is saved in env and will be
restored if a siglongjmp(3) is later performed with this env.
RETURN VALUE
setjmp() and sigsetjmp() return 0 if returning directly, and nonzero when returning from longjmp(3) or siglongjmp(3) using the saved con-
text.
CONFORMING TO
C89, C99, and POSIX.1-2001 specify setjmp(). POSIX.1-2001 specifies sigsetjmp().
NOTES
POSIX does not specify whether setjmp() will save the signal mask. In System V it will not. In 4.3BSD it will, and there is a function
_setjmp that will not. By default, Linux/glibc follows the System V behavior, but the BSD behavior is provided if the _BSD_SOURCE feature
test macro is defined and none of _POSIX_SOURCE, _POSIX_C_SOURCE, _XOPEN_SOURCE, _XOPEN_SOURCE_EXTENDED, _GNU_SOURCE, or _SVID_SOURCE is
defined.
If you want to portably save and restore signal masks, use sigsetjmp() and siglongjmp(3).
setjmp() and sigsetjmp() make programs hard to understand and maintain. If possible an alternative should be used.
SEE ALSO
longjmp(3), siglongjmp(3)
COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
2009-06-26 SETJMP(3)