ceph/src/dpdk/app/test/test_tailq.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdio.h>
  35 #include <stdint.h>
  36 #include <stdarg.h>
  37 #include <string.h>
  38 #include <errno.h>
  39 #include <sys/queue.h>
  40
  41 #include <rte_eal.h>
  42 #include <rte_eal_memconfig.h>
  43 #include <rte_string_fns.h>
  44
  45 #include "test.h"
  46
  47 #define do_return(...) do { \
  48         printf("Error at %s, line %d: ", __func__, __LINE__); \
  49         printf(__VA_ARGS__); \
  50         return 1; \
  51 } while (0)
  52
  53 static struct rte_tailq_elem rte_dummy_tailq = {
  54         .name = "dummy",
  55 };
  56 EAL_REGISTER_TAILQ(rte_dummy_tailq)
  57
  58 static struct rte_tailq_elem rte_dummy_dyn_tailq = {
  59         .name = "dummy_dyn",
  60 };
  61 static struct rte_tailq_elem rte_dummy_dyn2_tailq = {
  62         .name = "dummy_dyn",
  63 };
  64
  65 static struct rte_tailq_entry d_elem;
  66 static struct rte_tailq_entry d_dyn_elem;
  67
  68 static int
  69 test_tailq_early(void)
  70 {
  71         struct rte_tailq_entry_head *d_head;
  72
  73         d_head = RTE_TAILQ_CAST(rte_dummy_tailq.head, rte_tailq_entry_head);
  74         if (d_head == NULL)
  75                 do_return("Error %s has not been initialised\n",
  76                           rte_dummy_tailq.name);
  77
  78         /* check we can add an item to it */
  79         TAILQ_INSERT_TAIL(d_head, &d_elem, next);
  80
  81         return 0;
  82 }
  83
  84 static int
  85 test_tailq_create(void)
  86 {
  87         struct rte_tailq_entry_head *d_head;
  88
  89         /* create a tailq and check its non-null (since we are post-eal init) */
  90         if ((rte_eal_tailq_register(&rte_dummy_dyn_tailq) < 0) ||
  91             (rte_dummy_dyn_tailq.head == NULL))
  92                 do_return("Error allocating %s\n", rte_dummy_dyn_tailq.name);
  93
  94         d_head = RTE_TAILQ_CAST(rte_dummy_dyn_tailq.head, rte_tailq_entry_head);
  95
  96         /* check we can add an item to it */
  97         TAILQ_INSERT_TAIL(d_head, &d_dyn_elem, next);
  98
  99         if (strcmp(rte_dummy_dyn2_tailq.name, rte_dummy_dyn_tailq.name))
 100                 do_return("Error, something is wrong in the tailq test\n");
 101
 102         /* try allocating again, and check for failure */
 103         if (!rte_eal_tailq_register(&rte_dummy_dyn2_tailq))
 104                 do_return("Error, registering the same tailq %s did not fail\n",
 105                           rte_dummy_dyn2_tailq.name);
 106
 107         return 0;
 108 }
 109
 110 static int
 111 test_tailq_lookup(void)
 112 {
 113         /* run successful  test - check result is found */
 114         struct rte_tailq_entry_head *d_head;
 115         struct rte_tailq_entry *d_ptr;
 116
 117         d_head = RTE_TAILQ_LOOKUP(rte_dummy_tailq.name, rte_tailq_entry_head);
 118         /* rte_dummy_tailq has been registered by EAL_REGISTER_TAILQ */
 119         if (d_head == NULL ||
 120             d_head != RTE_TAILQ_CAST(rte_dummy_tailq.head, rte_tailq_entry_head))
 121                 do_return("Error with tailq lookup\n");
 122
 123         TAILQ_FOREACH(d_ptr, d_head, next)
 124                 if (d_ptr != &d_elem)
 125                         do_return("Error with tailq returned from lookup - "
 126                                         "expected element not found\n");
 127
 128         d_head = RTE_TAILQ_LOOKUP(rte_dummy_dyn_tailq.name, rte_tailq_entry_head);
 129         /* rte_dummy_dyn_tailq has been registered by test_tailq_create */
 130         if (d_head == NULL ||
 131             d_head != RTE_TAILQ_CAST(rte_dummy_dyn_tailq.head, rte_tailq_entry_head))
 132                 do_return("Error with tailq lookup\n");
 133
 134         TAILQ_FOREACH(d_ptr, d_head, next)
 135                 if (d_ptr != &d_dyn_elem)
 136                         do_return("Error with tailq returned from lookup - "
 137                                         "expected element not found\n");
 138
 139         /* now try a bad/error lookup */
 140         d_head = RTE_TAILQ_LOOKUP("coucou", rte_tailq_entry_head);
 141         if (d_head != NULL)
 142                 do_return("Error, lookup does not return NULL for bad tailq name\n");
 143
 144         return 0;
 145 }
 146
 147 static int
 148 test_tailq(void)
 149 {
 150         int ret = 0;
 151         ret |= test_tailq_early();
 152         ret |= test_tailq_create();
 153         ret |= test_tailq_lookup();
 154         return ret;
 155 }
 156
 157 REGISTER_TEST_COMMAND(tailq_autotest, test_tailq);