Hello,

I need to use four timers in my application. I am using Redhat Linux 9.0.

I came across functions like timer_create(), timer_delete()... But when I tried to call these function from my application there was linking error.

/tmp/cc0r6EtC.o(.text+0x3e): In function `main':
: undefined reference to `timer_create'

I have included following header files:

#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <signal.h>
#include <unistd.h>
#include <sys/types.h>
#include <error.h>
#include <sys/syscall.h>

Here are my questions.

1. Am I taking the correct direction? I mean using timer_create() and other related functions.

2. Am I missing any specific header file? Do I have to link to some library? Or simply the source code for the function is missing?

3. If the source is missing, where I can find it.

4. It would be great if you could direct me to some tutorials or something that is helpful in this regard.

5. I do not think setitimer() and getitime() going to help me. I have to have different timer values for all the timers and on expiration I need to call different functions. Any thoughts?

Your help is highly appreciated.

Regards.

avancedlinuxprogramming.com

Also, why didn't you post this in the "programming" sub-forum?

hi,

while compiling add -lrt then u wont get those linking errors

example program name - shakthi then try,

gcc -lrt shakthi.c

if u add any pthreads, then try,

gcc -lrt -lpthread shakthi.c

warms and regards,
shakthi

Hi,

Welcome to LQ!

Do not resurrect old threads!
Look at the original post(OP) date. This thread is almost 5 1/2 years old so do not expect feedback or reply since neither member have participated in years.

Plus, please spell out your words. No SMS text or tech speak since it is difficult enough to understand posts between members. By proper presentation then everyone will understand each other.