new ltt-usertrace

[lttv.git] / ltt-usertrace / sample-thread.c

#include <pthread.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>

#define LTT_TRACE
//this one is a non blocking sample (not #define LTT_BLOCKING 1)
#include <ltt/ltt-facility-user_generic.h>


void *thr1(void *arg)
{
  printf("thread 1, thread id : %lu, pid %lu\n", pthread_self(), getpid());

  while(1) {
		trace_user_generic_string("Hello world! Have a nice day.");
		sleep(2);
	}

  return ((void*)1);

}

void *thr2(void *arg)
{
  printf("thread 2, thread id : %lu, pid %lu\n", pthread_self(), getpid());
	sleep(1);
  while(1) {
		trace_user_generic_string("Hello world! Have a nice day.");
    sleep(2);
  }
  return ((void*)2);
}


int main()
{
	int err;
	pthread_t tid1, tid2;
	void *tret;

	printf("Will trace the following string : Hello world! Have a nice day.\n");
	printf("Press CTRL-C to stop.\n");
  printf("thread main, thread id : %lu, pid %lu\n", pthread_self(), getpid());
  err = pthread_create(&tid1, NULL, thr1, NULL);
  if(err!=0) exit(1);

  err = pthread_create(&tid2, NULL, thr2, NULL);
  if(err!=0) exit(1);

  err = pthread_join(tid1, &tret);
  if(err!= 0) exit(1);

  err = pthread_join(tid2, &tret);
  if(err!= 0) exit(1);
  
  return 0;
}