Sponsored Content
Full Discussion: generating timer
Top Forums Programming generating timer Post 40482 by kowrip on Tuesday 16th of September 2003 02:37:02 PM
Old 09-16-2003
Quote:
Originally posted by Perderabo
Posting a couple of lines from a c program is not enough to do any good.

The only debugging tool that I ever use is to insert a printf statement at strategic points in my program to see what's happening. It's low tech, I know. But it actually works very well.
It's probably a better idea to use fprintf(stderr, ... ) so that any errors are IMMEDIATELY reported. Otherwise, your program may die before the stdout buffer makes it to the screen. I've had this happen MANY times where the last debugging line on the screen did NOT indicate where the program REALLY died. Either use stderr or use fflush() after writing to a log file.
 

10 More Discussions You Might Find Interesting

1. Post Here to Contact Site Administrators and Moderators

reply timer

Neo, can u please shorten the reply timer to like 1 min or so. It is prolly just me but i end up passing on replying to posts due to i hate waiting for my timer to reset w/ a 2.5 mins wait. (2 Replies)
Discussion started by: Optimus_P
2 Replies

2. AIX

how to implement timer

anyone can help me how to implement the timer on AIX? I tried with 'setitimer' and its related functions, but it does not work correctly,the program exited each time. thanks (2 Replies)
Discussion started by: Frank2004
2 Replies

3. Shell Programming and Scripting

writing a timer

Hi!, My shell script takes a quite a long time to execute.. Nothing appears on the screen during this period.. User are left guessing... whats going on???????????? Any ideas on how to create a small timer script which print a word on screen say " wait.. Program running" after every 10 seconds... (3 Replies)
Discussion started by: jyotipg
3 Replies

4. Shell Programming and Scripting

timer

Hi all, Wanted to a create a shell script ----------------------------------------------------------------------- 1) which when called will start a timer and wait for 48 hours. after 48 hours it will call some function(say XYZ) 2) Whenever this shell script is called (can be called... (3 Replies)
Discussion started by: k_oops9
3 Replies

5. Shell Programming and Scripting

VNC Timer

Hello fellows, I am new in this forum, i would appreciate your assistance. I need a timming system for my vnc desktops (Cybercafe timer stuff). Each unix user login to my server only with vnc, and i want to write a program that can generate timer tickets and have control on the time used for... (0 Replies)
Discussion started by: foweja
0 Replies

6. UNIX for Advanced & Expert Users

Timer for VNC

Hello fellows, I am new in this forum, i would appreciate your assistance. I need a timming system for my vnc desktops (Cybercafe timer stuff). Each unix user login to my server only with vnc, and i want to write a program that can generate timer tickets and have control on the time used for... (1 Reply)
Discussion started by: foweja
1 Replies

7. UNIX for Dummies Questions & Answers

timer interrupt

hello all since a process running in kernel mode cannnot be preempted by any other process what would be the status of Timer interrupt that occurs when the time quantum of a process is elapsed? thanks (2 Replies)
Discussion started by: compbug
2 Replies

8. Shell Programming and Scripting

Timer

Is there a way to make a timer? E.g Please give the seconds... ... (6 Replies)
Discussion started by: aekaramg20
6 Replies

9. UNIX for Dummies Questions & Answers

Timer

is there a timer function in unix without using C? for example i want to display a message after 5 seconds how do i do that? (2 Replies)
Discussion started by: khestoi
2 Replies

10. Shell Programming and Scripting

Timer as output

How do you set timer as output to the command line so that you get an output like Has been waiting for 5 seconds Has been waiting for 6 seconds ... Where only the number changes. (2 Replies)
Discussion started by: locoroco
2 Replies
ALARM(2)						     Linux Programmer's Manual							  ALARM(2)

NAME
alarm - set an alarm clock for delivery of a signal SYNOPSIS
#include <unistd.h> unsigned int alarm(unsigned int seconds); DESCRIPTION
alarm() arranges for a SIGALRM signal to be delivered to the calling process in seconds seconds. If seconds is zero, no new alarm() is scheduled. In any event any previously set alarm() is canceled. RETURN VALUE
alarm() returns the number of seconds remaining until any previously scheduled alarm was due to be delivered, or zero if there was no pre- viously scheduled alarm. CONFORMING TO
SVr4, POSIX.1-2001, 4.3BSD. NOTES
alarm() and setitimer(2) share the same timer; calls to one will interfere with use of the other. sleep(3) may be implemented using SIGALRM; mixing calls to alarm() and sleep(3) is a bad idea. Scheduling delays can, as ever, cause the execution of the process to be delayed by an arbitrary amount of time. SEE ALSO
gettimeofday(2), pause(2), select(2), setitimer(2), sigaction(2), signal(2), sleep(3), time(7) COLOPHON
This page is part of release 3.27 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/. Linux 2008-06-12 ALARM(2)
All times are GMT -4. The time now is 11:01 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy