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-rw-r--r--regressions/ck_barrier/validate/barrier_centralized.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/regressions/ck_barrier/validate/barrier_centralized.c b/regressions/ck_barrier/validate/barrier_centralized.c
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+++ b/regressions/ck_barrier/validate/barrier_centralized.c
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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 <errno.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <math.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+#include <ck_pr.h>
+#include <ck_barrier.h>
+
+#include "../../common.h"
+
+#ifndef ITERATE
+#define ITERATE 5000000
+#endif
+
+#ifndef ENTRIES
+#define ENTRIES 512
+#endif
+
+static struct affinity a;
+static int nthr;
+static int counters[ENTRIES];
+static ck_barrier_centralized_t barrier = CK_BARRIER_CENTRALIZED_INITIALIZER;
+static int barrier_wait;
+
+static void *
+thread(void *null CK_CC_UNUSED)
+{
+ ck_barrier_centralized_state_t state = CK_BARRIER_CENTRALIZED_STATE_INITIALIZER;
+ int j, counter;
+ int i = 0;
+
+ aff_iterate(&a);
+
+ ck_pr_inc_int(&barrier_wait);
+ while (ck_pr_load_int(&barrier_wait) != nthr)
+ ck_pr_stall();
+
+ for (j = 0; j < ITERATE; j++) {
+ i = j++ & (ENTRIES - 1);
+ ck_pr_inc_int(&counters[i]);
+ ck_barrier_centralized(&barrier, &state, nthr);
+ counter = ck_pr_load_int(&counters[i]);
+ if (counter != nthr * (j / ENTRIES + 1)) {
+ ck_error("FAILED [%d:%d]: %d != %d\n", i, j - 1, counter, nthr);
+ }
+ }
+
+ return (NULL);
+}
+
+int
+main(int argc, char *argv[])
+{
+ pthread_t *threads;
+ int i;
+
+ if (argc < 3) {
+ ck_error("Usage: correct <number of threads> <affinity delta>\n");
+ }
+
+ nthr = atoi(argv[1]);
+ if (nthr <= 0) {
+ ck_error("ERROR: Number of threads must be greater than 0\n");
+ }
+
+ threads = malloc(sizeof(pthread_t) * nthr);
+ if (threads == NULL) {
+ ck_error("ERROR: Could not allocate thread structures\n");
+ }
+
+ a.delta = atoi(argv[2]);
+
+ fprintf(stderr, "Creating threads (barrier)...");
+ for (i = 0; i < nthr; i++) {
+ if (pthread_create(&threads[i], NULL, thread, NULL)) {
+ ck_error("ERROR: Could not create thread %d\n", i);
+ }
+ }
+ fprintf(stderr, "done\n");
+
+ fprintf(stderr, "Waiting for threads to finish correctness regression...");
+ for (i = 0; i < nthr; i++)
+ pthread_join(threads[i], NULL);
+ fprintf(stderr, "done (passed)\n");
+
+
+ return (0);
+}
+