| /* |
| * 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); |
| } |
| |