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ck/regressions/ck_hp/validate/ck_hp_stack.c

164 lines
4.1 KiB

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/*
* Copyright 2010-2012 Samy Al Bahra.
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* 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 <errno.h>
#include <inttypes.h>
#include <pthread.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <unistd.h>
#include <sys/time.h>
#include <ck_backoff.h>
#include <ck_cc.h>
#include <ck_pr.h>
#include <stdbool.h>
#include <stddef.h>
#include <ck_hp.h>
#include <ck_stack.h>
#include <ck_hp_stack.h>
#include "../../common.h"
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static unsigned int threshold;
static unsigned int n_threads;
static unsigned int barrier;
static unsigned int e_barrier;
#ifndef PAIRS
#define PAIRS 5000000
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#endif
struct node {
unsigned int value;
ck_hp_hazard_t hazard;
ck_stack_entry_t stack_entry;
};
static ck_stack_t stack = {NULL, NULL};
static ck_hp_t stack_hp;
CK_STACK_CONTAINER(struct node, stack_entry, stack_container)
static struct affinity a;
static void *
thread(void *unused CK_CC_UNUSED)
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{
struct node **entry, *e;
unsigned int i;
ck_hp_record_t record;
void **pointers;
ck_stack_entry_t *s;
unused = NULL;
pointers = malloc(sizeof(void *));
ck_hp_register(&stack_hp, &record, pointers);
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if (aff_iterate(&a)) {
perror("ERROR: failed to affine thread");
exit(EXIT_FAILURE);
}
entry = malloc(sizeof(struct node *) * PAIRS);
if (entry == NULL) {
ck_error("Failed allocation.\n");
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}
for (i = 0; i < PAIRS; i++) {
entry[i] = malloc(sizeof(struct node));
if (entry == NULL) {
ck_error("Failed individual allocation\n");
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}
}
ck_pr_inc_uint(&barrier);
while (ck_pr_load_uint(&barrier) < n_threads);
for (i = 0; i < PAIRS; i++) {
ck_hp_stack_push_mpmc(&stack, &entry[i]->stack_entry);
s = ck_hp_stack_pop_mpmc(&record, &stack);
e = stack_container(s);
ck_hp_free(&record, &e->hazard, e, s);
}
ck_pr_inc_uint(&e_barrier);
while (ck_pr_load_uint(&e_barrier) < n_threads);
ck_error("Peak: %u (%2.2f%%)\nReclamations: %" PRIu64 "\n\n",
record.n_peak,
(double)record.n_peak / PAIRS * 100,
record.n_reclamations);
ck_hp_clear(&record);
ck_hp_purge(&record);
ck_pr_inc_uint(&e_barrier);
while (ck_pr_load_uint(&e_barrier) < (n_threads << 1));
if (record.n_pending != 0) {
ck_error("ERROR: %u pending, expecting none.\n",
record.n_pending);
}
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return (NULL);
}
static void
destructor(void *p)
{
free(p);
return;
}
int
main(int argc, char *argv[])
{
unsigned int i;
pthread_t *threads;
if (argc != 4) {
ck_error("Usage: stack <threads> <threshold> <delta>\n");
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}
n_threads = atoi(argv[1]);
threshold = atoi(argv[2]);
a.delta = atoi(argv[3]);
a.request = 0;
threads = malloc(sizeof(pthread_t) * n_threads);
ck_hp_init(&stack_hp, 1, threshold, destructor);
for (i = 0; i < n_threads; i++)
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pthread_create(threads + i, NULL, thread, NULL);
for (i = 0; i < n_threads; i++)
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pthread_join(threads[i], NULL);
return (0);
}