ceph/src/spdk/test/event/reactor/reactor.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/thread.h"
  38
  39 static int g_time_in_sec;
  40 static struct spdk_poller *test_end_poller;
  41 static struct spdk_poller *poller_100ms;
  42 static struct spdk_poller *poller_250ms;
  43 static struct spdk_poller *poller_500ms;
  44 static struct spdk_poller *poller_oneshot;
  45 static struct spdk_poller *poller_unregister;
  46
  47 static int
  48 test_end(void *arg)
  49 {
  50         printf("test_end\n");
  51
  52         spdk_poller_unregister(&test_end_poller);
  53         spdk_poller_unregister(&poller_100ms);
  54         spdk_poller_unregister(&poller_250ms);
  55         spdk_poller_unregister(&poller_500ms);
  56
  57         spdk_app_stop(0);
  58         return -1;
  59 }
  60
  61 static int
  62 tick(void *arg)
  63 {
  64         uintptr_t period = (uintptr_t)arg;
  65
  66         printf("tick %" PRIu64 "\n", (uint64_t)period);
  67
  68         return -1;
  69 }
  70
  71 static int
  72 oneshot(void *arg)
  73 {
  74         printf("oneshot\n");
  75         spdk_poller_unregister(&poller_oneshot);
  76
  77         return -1;
  78 }
  79
  80 static int
  81 nop(void *arg)
  82 {
  83         return -1;
  84 }
  85
  86 static void
  87 test_start(void *arg1, void *arg2)
  88 {
  89         printf("test_start\n");
  90
  91         /* Register a poller that will stop the test after the time has elapsed. */
  92         test_end_poller = spdk_poller_register(test_end, NULL, g_time_in_sec * 1000000ULL);
  93
  94         poller_100ms = spdk_poller_register(tick, (void *)100, 100000);
  95         poller_250ms = spdk_poller_register(tick, (void *)250, 250000);
  96         poller_500ms = spdk_poller_register(tick, (void *)500, 500000);
  97         poller_oneshot = spdk_poller_register(oneshot, NULL, 0);
  98
  99         poller_unregister = spdk_poller_register(nop, NULL, 0);
 100         spdk_poller_unregister(&poller_unregister);
 101 }
 102
 103 static void
 104 usage(const char *program_name)
 105 {
 106         printf("%s options\n", program_name);
 107         printf("\t[-t time in seconds]\n");
 108 }
 109
 110 int
 111 main(int argc, char **argv)
 112 {
 113         struct spdk_app_opts opts;
 114         int op;
 115         int rc = 0;
 116
 117         spdk_app_opts_init(&opts);
 118         opts.name = "reactor";
 119         opts.max_delay_us = 1000;
 120
 121         g_time_in_sec = 0;
 122
 123         while ((op = getopt(argc, argv, "t:")) != -1) {
 124                 switch (op) {
 125                 case 't':
 126                         g_time_in_sec = atoi(optarg);
 127                         break;
 128                 default:
 129                         usage(argv[0]);
 130                         exit(1);
 131                 }
 132         }
 133
 134         if (!g_time_in_sec) {
 135                 usage(argv[0]);
 136                 exit(1);
 137         }
 138
 139         rc = spdk_app_start(&opts, test_start, NULL, NULL);
 140
 141         spdk_app_fini();
 142
 143         return rc;
 144 }