Sponsored Content
Full Discussion: signal handling question
Top Forums Programming signal handling question Post 302199845 by andryk on Wednesday 28th of May 2008 03:02:25 AM
Old 05-28-2008
Quote:
Originally Posted by fox_hound_33
Regarding the timer resolution, refer to time(7) in the man pages. Looks like the resolution can be configured from kernel 2.6.13 onwards. A snippet:

"since kernel 2.6.13, the HZ value is a kernel configuration parameter and can be 100, 250 (the default) or 1000, yielding a jiffies value of, respectively, 0.01, 0.004, or 0.001 seconds."
Cool, thanks for sharing the info!
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Handling SIGUSR2 signal

HI, I need to handle SIGUSR2 signal in my application to change the state of the application dynamically. I have implemented the signal handler. However the application is able to catch only one SIGUSR2 signal. The second SIGUSR2 signal causes the application to crash. This is happning only with... (3 Replies)
Discussion started by: diganta
3 Replies

2. UNIX for Advanced & Expert Users

signal handling in shell script

Hi can any please tell me is it possible to catch the signal in a shell script like we do in C. if yes please give me some idea or a link. (4 Replies)
Discussion started by: Raom
4 Replies

3. Programming

Signal Handling

Hi folks I'm trying to write a signal handler (in c on HPUX) that will catch the child process launched by execl when it's finished so that I can check a compliance file. The signal handler appears to catch the child process terminating however when the signal handler completes the parent... (3 Replies)
Discussion started by: themezzaman
3 Replies

4. Shell Programming and Scripting

Signal handling in Perl

Guys, I'm doing signal handling in Perl. I'm trying to catch ^C signal inside the script. There two scripts : one shell script and one perl script. The shell script calls the perl script. For e.g. shell script a.sh and perl scipt sig.pl. Shell script a.sh looks something like this :... (6 Replies)
Discussion started by: obelix
6 Replies

5. Programming

signal handling while in a function other than main

Hi, I have a main loop which calls a sub loop, which finally returns to the main loop itself. The main loop runs when a flag is set. Now, I have a signal handler for SIGINT, which resets the flag and thus stops the main loop. Suppose I send SIGINT while the program is in subloop, I get an error... (1 Reply)
Discussion started by: Theju
1 Replies

6. Programming

Signal Handling and Context Switches

Hi guys, this is my first posting, so at first hi to everyone! ;) I have a problem with ucontext_t in connection with signal handling. I want to simulate a preemptive scheduler. I am using the iTimer with ITIMER_PROF, to schedule the interrupts. You find the code below: #include <stdio.h>... (18 Replies)
Discussion started by: XComp
18 Replies

7. Programming

Signal handling

I am trying to write a small program where I can send signals and then ask for an action to be triggered if that signal is received. For example, here is an example where I am trying to write a programme that will say you pressed ctrl*c when someone presses ctrl+c. My questions are what you would... (1 Reply)
Discussion started by: #moveon
1 Replies

8. Programming

problem in SIGSEGV signal handling

i wrote handler for sigsegv such that i can allocate memory for a variable to which sigsegv generated for illlegal acces of memory. my code is #include <signal.h> #include<stdio.h> #include<stdlib.h> #include<string.h> char *j; void segv_handler(int dummy) { j=(char *)malloc(10); ... (4 Replies)
Discussion started by: pavan6754
4 Replies

9. UNIX and Linux Applications

SIGSEGV Signal handling

Hello, Can anybody tell me how can i handle segmentation fault signal, in C code? (2 Replies)
Discussion started by: mustus
2 Replies

10. Programming

problem in reforking and signal handling

hi friends i have a problem in signal handling ... let me explain my problem clearly.. i have four process .. main process forks two child process and each child process again forks another new process respectively... the problem is whenever i kill the child process it is reforking and the... (2 Replies)
Discussion started by: senvenugopal
2 Replies
reltimer(3C)															      reltimer(3C)

NAME
reltimer - relatively arm a per-process timer SYNOPSIS
DESCRIPTION
The function sets the of the specified timer to an offset from the current clock setting. If specifies a value argument with the member equal to zero, the timer is disabled. updates the it_interval value of the timer to the value specified. Time values smaller than the resolution of the specified timer are rounded up to its resolution; timer values larger than the maximum value of the specified timer are rounded down to the maximum value (see mktimer(3C)). returns in the ovalue parameter a value representing the previous amount of time before the timer would have expired or zero if the timer was disabled, together with the previous interval timer period. The members of ovalue are subject to the resolution of the timer, and are the same values that would be returned by a call. The behavior of this function is undefined if value is NULL. RETURN VALUE
Upon successful completion, returns zero; otherwise, it returns -1 and sets to indicate the error. ERRORS
fails if any of the following conditions are encountered: [EINVAL] does not correspond to an ID returned by or the value structure specified a nanosecond value less than zero or greater than or equal to 1000 million. [EIO] An error occurred while accessing the clock device. FILES
SEE ALSO
timers(2), gettimer(3C), mktimer(3C), thread_safety(5). STANDARDS CONFORMANCE
reltimer(3C)
All times are GMT -4. The time now is 04:16 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy