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Diffstat (limited to 'regressions/ck_spinlock/validate/validate.h')
| -rw-r--r-- | regressions/ck_spinlock/validate/validate.h | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/regressions/ck_spinlock/validate/validate.h b/regressions/ck_spinlock/validate/validate.h new file mode 100644 index 0000000..df40584 --- /dev/null +++ b/regressions/ck_spinlock/validate/validate.h @@ -0,0 +1,180 @@ +/* + * 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_cc.h> +#include <ck_pr.h> +#include <ck_spinlock.h> + +#include "../../common.h" + +#ifndef ITERATE +#define ITERATE 1000000 +#endif + +struct block { + unsigned int tid; +}; + +static struct affinity a; +static unsigned int locked = 0; +static uint64_t nthr; + +LOCK_DEFINE; + +static void * +thread(void *null CK_CC_UNUSED) +{ +#ifdef LOCK_STATE + LOCK_STATE; +#endif + unsigned int i = ITERATE; + unsigned int j; + unsigned int core; + + if (aff_iterate_core(&a, &core)) { + perror("ERROR: Could not affine thread"); + exit(EXIT_FAILURE); + } + + while (i--) { +#ifdef TRYLOCK + if (i & 1) { + LOCK; + } else { + while (TRYLOCK == false) + ck_pr_stall(); + } +#else + LOCK; +#endif + +#ifdef LOCKED + if (LOCKED == false) + ck_error("is_locked operation failed."); +#endif + + ck_pr_store_uint(&locked, locked + 1); + ck_pr_store_uint(&locked, locked + 1); + ck_pr_store_uint(&locked, locked + 1); + ck_pr_store_uint(&locked, locked + 1); + ck_pr_store_uint(&locked, locked + 1); + ck_pr_store_uint(&locked, locked + 1); + ck_pr_store_uint(&locked, locked + 1); + ck_pr_store_uint(&locked, locked + 1); + ck_pr_store_uint(&locked, locked + 1); + ck_pr_store_uint(&locked, locked + 1); + + j = ck_pr_load_uint(&locked); + + if (j != 10) { + ck_error("ERROR (WR): Race condition (%u)\n", j); + exit(EXIT_FAILURE); + } + + ck_pr_store_uint(&locked, locked - 1); + ck_pr_store_uint(&locked, locked - 1); + ck_pr_store_uint(&locked, locked - 1); + ck_pr_store_uint(&locked, locked - 1); + ck_pr_store_uint(&locked, locked - 1); + ck_pr_store_uint(&locked, locked - 1); + ck_pr_store_uint(&locked, locked - 1); + ck_pr_store_uint(&locked, locked - 1); + ck_pr_store_uint(&locked, locked - 1); + ck_pr_store_uint(&locked, locked - 1); + + UNLOCK; + LOCK; + + j = ck_pr_load_uint(&locked); + if (j != 0) { + ck_error("ERROR (RD): Race condition (%u)\n", j); + exit(EXIT_FAILURE); + } + + UNLOCK; + } + + return (NULL); +} + +int +main(int argc, char *argv[]) +{ + uint64_t i; + pthread_t *threads; + + if (argc != 3) { + ck_error("Usage: " LOCK_NAME " <number of threads> <affinity delta>\n"); + exit(EXIT_FAILURE); + } + + nthr = atoi(argv[1]); + if (nthr <= 0) { + ck_error("ERROR: Number of threads must be greater than 0\n"); + exit(EXIT_FAILURE); + } + +#ifdef LOCK_INIT + LOCK_INIT; +#endif + + threads = malloc(sizeof(pthread_t) * nthr); + if (threads == NULL) { + ck_error("ERROR: Could not allocate thread structures\n"); + exit(EXIT_FAILURE); + } + + a.delta = atoi(argv[2]); + a.request = 0; + + fprintf(stderr, "Creating threads (mutual exclusion)..."); + for (i = 0; i < nthr; i++) { + if (pthread_create(&threads[i], NULL, thread, NULL)) { + ck_error("ERROR: Could not create thread %" PRIu64 "\n", i); + exit(EXIT_FAILURE); + } + } + 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); +} + |