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/*
* Copyright 2011-2015 Samy Al Bahra.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <pthread.h>
#include <ck_hp_fifo.h>
#include "../../common.h"
#ifndef ITERATIONS
#define ITERATIONS 128
#endif
struct context {
unsigned int tid;
unsigned int previous;
unsigned int next;
};
struct entry {
int tid;
int value;
};
static ck_hp_fifo_t fifo;
static ck_hp_t fifo_hp;
static int nthr;
static struct affinity a;
static int size;
static unsigned int barrier;
static unsigned int e_barrier;
static void *
test(void *c)
{
struct context *context = c;
struct entry *entry;
ck_hp_fifo_entry_t *fifo_entry;
ck_hp_record_t record;
int i, j;
if (aff_iterate(&a)) {
perror("ERROR: Could not affine thread");
exit(EXIT_FAILURE);
}
ck_hp_register(&fifo_hp, &record, malloc(sizeof(void *) * 2));
ck_pr_inc_uint(&barrier);
while (ck_pr_load_uint(&barrier) < (unsigned int)nthr);
for (i = 0; i < ITERATIONS; i++) {
for (j = 0; j < size; j++) {
fifo_entry = malloc(sizeof(ck_hp_fifo_entry_t));
entry = malloc(sizeof(struct entry));
entry->tid = context->tid;
ck_hp_fifo_enqueue_mpmc(&record, &fifo, fifo_entry, entry);
ck_pr_barrier();
fifo_entry = ck_hp_fifo_dequeue_mpmc(&record, &fifo, &entry);
if (fifo_entry == NULL) {
ck_error("ERROR [%u] Queue should never be empty.\n", context->tid);
}
ck_pr_barrier();
if (entry->tid < 0 || entry->tid >= nthr) {
ck_error("ERROR [%u] Incorrect value in entry.\n", entry->tid);
}
ck_hp_free(&record, &fifo_entry->hazard, fifo_entry, fifo_entry);
}
}
for (i = 0; i < ITERATIONS; i++) {
for (j = 0; j < size; j++) {
fifo_entry = malloc(sizeof(ck_hp_fifo_entry_t));
entry = malloc(sizeof(struct entry));
entry->tid = context->tid;
while (ck_hp_fifo_tryenqueue_mpmc(&record, &fifo, fifo_entry, entry) == false)
ck_pr_stall();
while (fifo_entry = ck_hp_fifo_trydequeue_mpmc(&record, &fifo, &entry), fifo_entry == NULL)
ck_pr_stall();
if (entry->tid < 0 || entry->tid >= nthr) {
ck_error("ERROR [%u] Incorrect value in entry.\n", entry->tid);
}
ck_hp_free(&record, &fifo_entry->hazard, fifo_entry, fifo_entry);
}
}
ck_pr_inc_uint(&e_barrier);
while (ck_pr_load_uint(&e_barrier) < (unsigned int)nthr);
return (NULL);
}
static void
destructor(void *p)
{
free(p);
return;
}
int
main(int argc, char *argv[])
{
int i, r;
struct context *context;
pthread_t *thread;
int threshold;
if (argc != 5) {
ck_error("Usage: validate <threads> <affinity delta> <size> <threshold>\n");
}
a.delta = atoi(argv[2]);
nthr = atoi(argv[1]);
assert(nthr >= 1);
size = atoi(argv[3]);
assert(size > 0);
threshold = atoi(argv[4]);
assert(threshold > 0);
context = malloc(sizeof(*context) * nthr);
assert(context);
thread = malloc(sizeof(pthread_t) * nthr);
assert(thread);
ck_hp_init(&fifo_hp, 2, threshold, destructor);
ck_hp_fifo_init(&fifo, malloc(sizeof(ck_hp_fifo_entry_t)));
ck_hp_fifo_entry_t *entry;
ck_hp_fifo_deinit(&fifo, &entry);
if (entry == NULL)
ck_error("ERROR: Expected non-NULL stub node.\n");
free(entry);
ck_hp_fifo_init(&fifo, malloc(sizeof(ck_hp_fifo_entry_t)));
for (i = 0; i < nthr; i++) {
context[i].tid = i;
r = pthread_create(thread + i, NULL, test, context + i);
assert(r == 0);
}
for (i = 0; i < nthr; i++)
pthread_join(thread[i], NULL);
return (0);
}
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