/*      $NetBSD: t_pslist.c,v 1.2 2019/12/01 15:28:20 riastradh Exp $   */

/*-
* Copyright (c) 2016 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Taylor R. Campbell.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/

/*
* XXX This is a limited test to make sure the operations behave as
* described on a sequential machine.  It does nothing to test the
* pserialize-safety of any operations.  The following definitions must
* be replaced in any parallel tests.
*/

#define atomic_load_relaxed(p)          (*(p))
#define atomic_load_acquire(p)          (*(p))
#define atomic_load_consume(p)          (*(p))
#define atomic_store_relaxed(p,v)       (*(p) = (v))
#define atomic_store_release(p,v)       (*(p) = (v))

#include <sys/pslist.h>

#include <atf-c.h>

ATF_TC(misc);
ATF_TC_HEAD(misc, tc)
{
       atf_tc_set_md_var(tc, "descr", "pserialize-safe list tests");
}
ATF_TC_BODY(misc, tc)
{
       struct pslist_head h = PSLIST_INITIALIZER;
       struct element {
               unsigned i;
               struct pslist_entry entry;
       } elements[] = {
               { .i = 0, .entry = PSLIST_ENTRY_INITIALIZER },
               { .i = 1 },
               { .i = 2 },
               { .i = 3 },
               { .i = 4 },
               { .i = 5 },
               { .i = 6 },
               { .i = 7 },
       };
       struct element *element;
       unsigned i;

       /* Check PSLIST_INITIALIZER is destroyable.  */
       PSLIST_DESTROY(&h);
       PSLIST_INIT(&h);

       /* Check PSLIST_ENTRY_INITIALIZER is destroyable.  */
       PSLIST_ENTRY_DESTROY(&elements[0], entry);

       for (i = 0; i < __arraycount(elements); i++)
               PSLIST_ENTRY_INIT(&elements[i], entry);

       PSLIST_WRITER_INSERT_HEAD(&h, &elements[4], entry);
       PSLIST_WRITER_INSERT_BEFORE(&elements[4], &elements[2], entry);
       PSLIST_WRITER_INSERT_BEFORE(&elements[4], &elements[3], entry);
       PSLIST_WRITER_INSERT_BEFORE(&elements[2], &elements[1], entry);
       PSLIST_WRITER_INSERT_HEAD(&h, &elements[0], entry);
       PSLIST_WRITER_INSERT_AFTER(&elements[4], &elements[5], entry);
       PSLIST_WRITER_INSERT_AFTER(&elements[5], &elements[7], entry);
       PSLIST_WRITER_INSERT_AFTER(&elements[5], &elements[6], entry);

       PSLIST_WRITER_REMOVE(&elements[0], entry);
       ATF_CHECK(elements[0].entry.ple_next != NULL);
       PSLIST_ENTRY_DESTROY(&elements[0], entry);

       PSLIST_WRITER_REMOVE(&elements[4], entry);
       ATF_CHECK(elements[4].entry.ple_next != NULL);
       PSLIST_ENTRY_DESTROY(&elements[4], entry);

       PSLIST_ENTRY_INIT(&elements[0], entry);
       PSLIST_WRITER_INSERT_HEAD(&h, &elements[0], entry);

       PSLIST_ENTRY_INIT(&elements[4], entry);
       PSLIST_WRITER_INSERT_AFTER(&elements[3], &elements[4], entry);

       i = 0;
       PSLIST_WRITER_FOREACH(element, &h, struct element, entry) {
               ATF_CHECK_EQ(i, element->i);
               i++;
       }
       i = 0;
       PSLIST_READER_FOREACH(element, &h, struct element, entry) {
               ATF_CHECK_EQ(i, element->i);
               i++;
       }

       while ((element = PSLIST_WRITER_FIRST(&h, struct element, entry))
           != NULL) {
               PSLIST_WRITER_REMOVE(element, entry);
               PSLIST_ENTRY_DESTROY(element, entry);
       }

       PSLIST_DESTROY(&h);
}

ATF_TP_ADD_TCS(tp)
{

       ATF_TP_ADD_TC(tp, misc);

       return atf_no_error();
}