ceph/src/spdk/test/event/app_repeat/app_repeat.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (c) Intel Corporation.
   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 "spdk/stdinc.h"
  35
  36 #include "spdk/event.h"
  37 #include "spdk/string.h"
  38 #include "spdk/thread.h"
  39
  40 struct spdk_app_opts g_opts = {};
  41 static const char g_app_repeat_get_opts_string[] = "t:";
  42 static int g_repeat_times = 2;
  43 static bool g_exit;
  44
  45 static void
  46 app_repeat_usage(void)
  47 {
  48         printf(" -t <num>                  number of times to repeat calling spdk_app_start/stop\n");
  49 }
  50
  51 static int
  52 app_repeat_parse_arg(int ch, char *arg)
  53 {
  54         switch (ch) {
  55         case 't':
  56                 g_repeat_times = spdk_strtol(arg, 0);
  57                 if (g_repeat_times < 2) {
  58                         return -EINVAL;
  59                 }
  60                 break;
  61         default:
  62                 return -EINVAL;
  63         }
  64         return 0;
  65 }
  66
  67 static void
  68 app_repeat_started(void *arg1)
  69 {
  70         int index = *(int *)arg1;
  71
  72         printf("spdk_app_start is called in Round %d.\n", index);
  73 }
  74
  75 static void _app_repeat_shutdown_cb(void)
  76 {
  77         printf("Shutdown signal received, exit.\n");
  78         g_exit = true;
  79         spdk_app_stop(0);
  80 }
  81
  82 static void _app_repeat_usr1_handler(int signal)
  83 {
  84         printf("USR1 signal received, restart spdk application framework.\n");
  85         spdk_app_stop(0);
  86 }
  87
  88 int
  89 main(int argc, char **argv)
  90 {
  91         int rc;
  92         int i;
  93
  94         spdk_app_opts_init(&g_opts);
  95         g_opts.name = "app_repeat";
  96         g_opts.shutdown_cb = _app_repeat_shutdown_cb;
  97         g_opts.usr1_handler = _app_repeat_usr1_handler;
  98         if ((rc = spdk_app_parse_args(argc, argv, &g_opts, g_app_repeat_get_opts_string,
  99                                       NULL, app_repeat_parse_arg, app_repeat_usage)) !=
 100             SPDK_APP_PARSE_ARGS_SUCCESS) {
 101                 return rc;
 102         }
 103
 104         for (i = 0; i < g_repeat_times; i++) {
 105                 rc = spdk_app_start(&g_opts, app_repeat_started, &i);
 106                 spdk_app_fini();
 107
 108                 if (rc) {
 109                         fprintf(stderr, "Failed to call spdk_app_start in Round %d.\n", i);
 110                         break;
 111                 }
 112         }
 113
 114         return rc;
 115 }