#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <signal.h>

#include <unistd.h>

#include <inttypes.h>

#include <pthread.h>

#include <sys/wait.h>

#include <sched.h>

void *thread1_func(void *arg)

{

    int i;

    char buf[512];

    for(i=0;i<10;i++) {

        snprintf(buf, sizeof(buf), "thread1: %d %s\n", i, (char *)arg);

        write(1, buf, strlen(buf));

        usleep(100 * 1000);

    }

    return NULL;

}

void *thread2_func(void *arg)

{

    int i;

    char buf[512];

    for(i=0;i<20;i++) {

        snprintf(buf, sizeof(buf), "thread2: %d %s\n", i, (char *)arg);

        write(1, buf, strlen(buf));

        usleep(150 * 1000);

    }

    return NULL;

}

void test_pthread(void)

{

    pthread_t tid1, tid2;

    pthread_create(&tid1, NULL, thread1_func, "hello1");

    pthread_create(&tid2, NULL, thread2_func, "hello2");

    pthread_join(tid1, NULL);

    pthread_join(tid2, NULL);

    printf("End of pthread test.\n");

}

int main(int argc, char **argv)

{

    test_pthread();

    return 0;

}