02-26-2020
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Solaris Unix vs HP Unix, Could someone point out the major differences.
I have been performing Support to Solaris Unix for about 6 years, now I am interviewing for a HP Unix position. Could someone point out the major differences? Should it be an easy transition?
Thanks (1 Reply)
Discussion started by: Hack
1 Replies
2. UNIX for Dummies Questions & Answers
Hi, I need help again. When I run this shell script, it only runs the unld_date.sql piece and exits. How can I structure this to run all the way to the end? When I don't have the unld_date.sql piece in here, everything runs fine from the date compare piece all the way to the end. Thanks in... (5 Replies)
Discussion started by: siog
5 Replies
3. UNIX for Dummies Questions & Answers
Sorry if this is a stupid question!
I have been developing a Java application that I am deploying on both Unix and Linux servers, which uses lots of socket handling. When the server side connection is dropped by the server un-gracefully I have been seeing close_waits and null connections.
... (0 Replies)
Discussion started by: Vinnie
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4. UNIX for Dummies Questions & Answers
I sent a private message to one of the administrators/moderators, but I thought I'd ask here publicly after some thought.
I'm getting into Unix on my Mac (BSD). I was just wondering what the differences are between versions of Unix -- I want to learn more about it, but would it be better to... (1 Reply)
Discussion started by: Straitsfan
1 Replies
5. Shell Programming and Scripting
What is the difference between the following commands. Please with example?
rsh
ssh
scp
rcp
rlogin
ftp
telnet
Cheers.. (3 Replies)
Discussion started by: gwgreen1
3 Replies
6. Shell Programming and Scripting
I have a korn shell script that executes a function which is stored in a common library. In the function there is obviously some code. Here is the line of code in the function in question:
temp=`echo $status_cnt|tr -d `
When the shell script executes with set -x, I'm seeing that on most... (2 Replies)
Discussion started by: mjf
2 Replies
7. UNIX for Dummies Questions & Answers
I recently started an introductory course in UNIX / Linux Red Hat 7.3. The textbook came with the Red Hat 7.3 OS included but no UNIX. Are the commands and syntax so closely related that if I learn one I automatically know how to use the other. What are the similarities and differences. When... (2 Replies)
Discussion started by: barbedwire615
2 Replies
8. Shell Programming and Scripting
hello
does someone want to help me for this one ?
i want to rename files & a folder according to the similarities in filenames
for example :
the file with the good name
cglogo tougl1953 dgmel bogd 01 -- ttgductoog ggdté gollogtd.ext1the others files needed to be renamed
cglogo... (5 Replies)
Discussion started by: mc2z674gj
5 Replies
9. UNIX for Dummies Questions & Answers
Hello!
Please, I am sorry, I am the absolute beginner,
If I have unix as os instead of lets say windows, then can I go to INTERNET and how?
Are there some other BIG differences?
Many thanks!!! (1 Reply)
Discussion started by: pinklemon
1 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)