text: /*-
   *   BSD LICENSE
   *
   *   Copyright (c) Intel Corporation.
   *   All rights reserved.
   *
   *   Redistribution and use in source and binary forms, with or without
   *   modification, are permitted provided that the following conditions
   *   are met:
   *
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * 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.
   *     * Neither the name of Intel Corporation nor the names of its
   *       contributors may be used to endorse or promote products derived
   *       from this software without specific prior written permission.
   *
   *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
   *   OWNER 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 "spdk/stdinc.h"
  
  #include "spdk/env.h"
  #include "spdk/event.h"
  #include "spdk/thread.h"
  
  static int g_time_in_sec;
  static int g_queue_depth;
  static struct spdk_poller *test_end_poller;
  static uint64_t g_call_count = 0;
  
  static int
  __test_end(void *arg)
  {
  	printf("test_end\n");
  	spdk_app_stop(0);
  	return -1;
  }
  
  static void
  __submit_next(void *arg1, void *arg2)
  {
  	struct spdk_event *event;
  
  	g_call_count++;
  
  	event = spdk_event_allocate(spdk_env_get_current_core(),
  				    __submit_next, NULL, NULL);
  	spdk_event_call(event);
  }
  
  static void
  test_start(void *arg1, void *arg2)
  {
  	int i;
  
  	printf("test_start\n");
  
  	/* Register a poller that will stop the test after the time has elapsed. */
  	test_end_poller = spdk_poller_register(__test_end, NULL,
  					       g_time_in_sec * 1000000ULL);
  
  	for (i = 0; i < g_queue_depth; i++) {
  		__submit_next(NULL, NULL);
  	}
  }
  
  static void
  test_cleanup(void)
  {
  	printf("test_abort\n");
  
  	spdk_poller_unregister(&test_end_poller);
  	spdk_app_stop(0);
  }
  
  static void
  usage(const char *program_name)
  {
  	printf("%s options\n", program_name);
  	printf("\t[-d Allowed delay when passing messages between cores in microseconds]\n");
  	printf("\t[-q Queue depth (default: 1)]\n");
  	printf("\t[-t time in seconds]\n");
  }
  
  int
  main(int argc, char **argv)
  {
  	struct spdk_app_opts opts;
  	int op;
  	int rc;
  
  	spdk_app_opts_init(&opts);
  	opts.name = "reactor_perf";
  	opts.max_delay_us = 1000;
  
  	g_time_in_sec = 0;
  	g_queue_depth = 1;
  
  	while ((op = getopt(argc, argv, "d:q:t:")) != -1) {
  		switch (op) {
  		case 'd':
  			opts.max_delay_us = atoi(optarg);
  			break;
  		case 'q':
  			g_queue_depth = atoi(optarg);
  			break;
  		case 't':
  			g_time_in_sec = atoi(optarg);
  			break;
  		default:
  			usage(argv[0]);
  			exit(1);
  		}
  	}
  
  	if (!g_time_in_sec) {
  		usage(argv[0]);
  		exit(1);
  	}
  
  	opts.shutdown_cb = test_cleanup;
  
  	rc = spdk_app_start(&opts, test_start, NULL, NULL);
  
  	spdk_app_fini();
  
  	printf("Performance: %8ju events per second\n", g_call_count / g_time_in_sec);
  
  	return rc;
  }
  