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/*
* Copyright (C) 2014 Hamburg University of Applied Sciences
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief pthread test application
*
* @author Raphael Hiesgen <raphael.hiesgen@haw-hamburg.de>
*
* @}
*/
#include <stdio.h>
#include <pthread.h>
#define NUM_THREADS 12
pthread_t ths[NUM_THREADS];
pthread_mutex_t mtx;
volatile int storage = 1;
void *run(void *parameter)
{
int arg = (int) parameter;
printf("My arg: %d\n", arg);
int err = pthread_mutex_lock(&mtx);
if (err != 0) {
printf("[!!!] pthread_mutex_lock failed with %d\n", err);
return NULL;
}
storage *= arg;
printf("val = %d\n", storage);
pthread_mutex_unlock(&mtx);
return NULL;
}
int main(void)
{
pthread_attr_t th_attr;
pthread_attr_init(&th_attr);
pthread_mutex_init(&mtx, NULL);
for (int i = 0; i < NUM_THREADS; ++i) {
printf("Creating thread with arg %d\n", (i + 1));
pthread_create(&ths[i], &th_attr, run, (void *)(i + 1));
}
for (int i = 0; i < NUM_THREADS; ++i) {
printf("join\n");
pthread_join(ths[i], NULL);
}
printf("Factorial: %d\n", storage);
if (storage != 479001600) {
puts("[!!!] Error, expected: 12!= 479001600.");
}
pthread_mutex_destroy(&mtx);
pthread_attr_destroy(&th_attr);
puts("finished");
return 0;
}