RIOT/tests/test_thread_exit/main.c

#include <stdio.h>

#include "thread.h"
#include "flags.h"
#include "kernel.h"

char second_thread_stack[KERNEL_CONF_STACKSIZE_MAIN];
char third_thread_stack[KERNEL_CONF_STACKSIZE_MAIN];

void fourth_thread(void) {
    puts("4th: starting");
    puts("4th: exiting");
}

void third_thread(void) {
    puts("3rd: starting");
    puts("3rd: exiting");
}

void second_thread(void) {
    puts("2nd: starting");

    if ((thread_create(
                    third_thread_stack,
                    sizeof(third_thread_stack),
                    PRIORITY_MAIN-2,
                    CREATE_STACKTEST,
                    third_thread,
                    "nr3")
        ) == -1) {
        puts("2nd: Error creating 3rd thread.");
    }

    /* thread should have returned already */

    if ((thread_create(
                    third_thread_stack,
                    sizeof(third_thread_stack),
                    PRIORITY_MAIN-1,
                    CREATE_WOUT_YIELD | CREATE_STACKTEST,
                    fourth_thread,
                    "nr4")
        ) == -1) {
        puts("2nd: Error creating 4rd thread.");
    }

    puts("2nd: exiting");
}

int main(void)
{
    puts("main: starting");
    if ((thread_create(
                    second_thread_stack,
                    sizeof(second_thread_stack),
                    PRIORITY_MAIN-1,
                    CREATE_WOUT_YIELD | CREATE_STACKTEST,
                    second_thread,
                    "nr2")
        ) == -1) {
        puts("main: Error creating 3rd thread.");
    }
    puts("main: exiting");
}