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/*
* Creates 8 threads. The fifth one (counting the main thread as well)
* causes a core dump.
*/
#include <errno.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#define NEVERENDING_SLEEP 10000
static pthread_barrier_t barrier;
static void *thread_func2(void *arg) {
pthread_barrier_wait(&barrier);
sleep(NEVERENDING_SLEEP);
return NULL;
}
static void *thread_func3(void *arg) {
pthread_barrier_wait(&barrier);
sleep(NEVERENDING_SLEEP);
return NULL;
}
static void *thread_func4(void *arg) {
pthread_barrier_wait(&barrier);
sleep(NEVERENDING_SLEEP);
return NULL;
}
static void *thread_func5(void *arg) {
pthread_barrier_wait(&barrier);
sleep(2);
char *x = (char *) 0x1;
*x = 2;
return NULL;
}
static void *thread_func6(void *arg) {
pthread_barrier_wait(&barrier);
sleep(NEVERENDING_SLEEP);
return NULL;
}
static void *thread_func7(void *arg) {
pthread_barrier_wait(&barrier);
sleep(NEVERENDING_SLEEP);
return NULL;
}
static void *thread_func8(void *arg) {
pthread_barrier_wait(&barrier);
sleep(NEVERENDING_SLEEP);
return NULL;
}
static void *thread_func9(void *arg) {
pthread_barrier_wait(&barrier);
sleep(NEVERENDING_SLEEP);
return NULL;
}
static void create_thread(void *(*thread_func)(void *))
{
pthread_t thread;
int ret = pthread_create(&thread, NULL, thread_func, NULL);
if (ret != 0) {
fprintf(stderr, "pthread_create: %s (%d)\n", strerror(ret), ret);
exit(1);
}
}
int main(int argc, const char *argv[])
{
int ret = pthread_barrier_init(&barrier, NULL, 9);
if (ret != 0) {
fprintf(stderr, "pthread_barrier_init: %s (%d)\n",
strerror(ret), ret);
exit(1);
}
create_thread(thread_func2);
create_thread(thread_func3);
create_thread(thread_func4);
create_thread(thread_func5);
create_thread(thread_func6);
create_thread(thread_func7);
create_thread(thread_func8);
create_thread(thread_func9);
pthread_barrier_wait(&barrier);
sleep(NEVERENDING_SLEEP);
return 0;
}
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