text: /*
   * Copyright (c) 2006, 2009 Red Hat, Inc.
   *
   * All rights reserved.
   *
   * Author: Steven Dake (sdake@redhat.com)
   *
   * This software licensed under BSD license, the text of which follows:
   *
   * 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 the MontaVista Software, Inc. 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 <config.h>
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <signal.h>
  #include <unistd.h>
  #include <errno.h>
  #include <unistd.h>
  #include <time.h>
  #include <sys/time.h>
  #include <sys/types.h>
  #include <sys/socket.h>
  #include <sys/select.h>
  #include <sys/un.h>
  #include <sys/socket.h>
  #include <netinet/in.h>
  #include <arpa/inet.h>
  
  #include <corosync/corotypes.h>
  #include <corosync/cpg.h>
  
  #ifdef COROSYNC_SOLARIS
  #define timersub(a, b, result)						\
      do {								\
  	(result)->tv_sec = (a)->tv_sec - (b)->tv_sec;			\
  	(result)->tv_usec = (a)->tv_usec - (b)->tv_usec;		\
  	if ((result)->tv_usec < 0) {					\
  	    --(result)->tv_sec;						\
  	    (result)->tv_usec += 1000000;				\
  	}								\
      } while (0)
  #endif
  
  static int alarm_notice;
  
  static void cpg_bm_confchg_fn (
  	cpg_handle_t handle,
  	const struct cpg_name *group_name,
  	const struct cpg_address *member_list, size_t member_list_entries,
  	const struct cpg_address *left_list, size_t left_list_entries,
  	const struct cpg_address *joined_list, size_t joined_list_entries)
  {
  }
  
  static unsigned int write_count;
  
  static void cpg_bm_deliver_fn (
          cpg_handle_t handle,
          const struct cpg_name *group_name,
          uint32_t nodeid,
          uint32_t pid,
          void *msg,
          size_t msg_len)
  {
  	write_count++;
  }
  
  static cpg_callbacks_t callbacks = {
  	.cpg_deliver_fn 	= cpg_bm_deliver_fn,
  	.cpg_confchg_fn		= cpg_bm_confchg_fn
  };
  
  
  void *data;
  
  static void cpg_benchmark (
  	cpg_handle_t handle,
  	int write_size)
  {
  	struct timeval tv1, tv2, tv_elapsed;
  	unsigned int res;
  	cpg_flow_control_state_t flow_control_state;
  
  	alarm_notice = 0;
  
  	write_count = 0;
  	alarm (10);
  
  	gettimeofday (&tv1, NULL);
  	do {
  		/*
  		 * Test checkpoint write
  		 */
  		cpg_flow_control_state_get (handle, &flow_control_state);
  		if (flow_control_state == CPG_FLOW_CONTROL_DISABLED) {
  retry:
  			res = cpg_zcb_mcast_joined (handle, CPG_TYPE_AGREED, data, write_size);
  			if (res == CS_ERR_TRY_AGAIN) {
  				goto retry;
  			}
  		}
  		res = cpg_dispatch (handle, CS_DISPATCH_ALL);
  		if (res != CS_OK) {
  			printf ("cpg dispatch returned error %d\n", res);
  			exit (1);
  		}
  	} while (alarm_notice == 0);
  	gettimeofday (&tv2, NULL);
  	timersub (&tv2, &tv1, &tv_elapsed);
  
  	printf ("%5d messages received ", write_count);
  	printf ("%5d bytes per write ", write_size);
  	printf ("%7.3f Seconds runtime ",
  		(tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)));
  	printf ("%9.3f TP/s ",
  		((float)write_count) /  (tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)));
  	printf ("%7.3f MB/s.\n",
  		((float)write_count) * ((float)write_size) /  ((tv_elapsed.tv_sec + (tv_elapsed.tv_usec / 1000000.0)) * 1000000.0));
  }
  
  static void sigalrm_handler (int num)
  {
  	alarm_notice = 1;
  }
  
  static struct cpg_name group_name = {
  	.value = "cpg_bm",
  	.length = 6
  };
  
  int main (void) {
  	cpg_handle_t handle;
  	unsigned int size;
  	int i;
  	unsigned int res;
  
  
  
  	size = 1000;
  	signal (SIGALRM, sigalrm_handler);
  	res = cpg_initialize (&handle, &callbacks);
  	if (res != CS_OK) {
  		printf ("cpg_initialize failed with result %d\n", res);
  		exit (1);
  	}
  	cpg_zcb_alloc (handle, 500000, &data);
  	if (res != CS_OK) {
  		printf ("cpg_zcb_alloc couldn't allocate zero copy buffer %d\n", res);
  		exit (1);
  	}
  
  	res = cpg_join (handle, &group_name);
  	if (res != CS_OK) {
  		printf ("cpg_join failed with result %d\n", res);
  		exit (1);
  	}
  
  	for (i = 0; i < 50; i++) { /* number of repetitions - up to 50k */
  		cpg_benchmark (handle, size);
  		size += 1000;
  	}
  
  	res = cpg_finalize (handle);
  	if (res != CS_OK) {
  		printf ("cpg_join failed with result %d\n", res);
  		exit (1);
  	}
  	return (0);
  }
  