code for multiprocessing

[kingraja84]

hi,
i am learning programming in linux environment ,i will be very thankful if any one can sent me some CODE on how to do multithreading,in the sense what system calls we need for any application

regards,
raja.

 

[Anno]

I can help you in right direction.
read the following man pages
fork, system, exec, pid and close
then later you can look into sigaction and signal to control
different behaviour of threads.

 

[freeworm]

multi-thread code:

#include <pthread.h>

int do_exchange_bound1()
{
sleep(3);
return;
}



int ret;
pthread_t pid;
ret = pthread_create(&pid, NULL, (void*)do_exchange_bound1, NULL);
if (ret != 0) {
printf("create thread failed\n");
return -1;
}
pthread_detach(pid);



multi-process code:
int main()
{
int cldid;

cldid = fork();
if (cldid == 0) {
printf("child\n");
sleep(1);
exit(0);
}

printf("parent\n");

}