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testevs.c
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/*
* Copyright (c) 2004 MontaVista Software, Inc.
* Copyright (c) 2006 Sun Microsystems, Inc.
*
* All rights reserved.
*
* Author: Steven Dake (sdake@mvista.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 <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <errno.h>
#include "../include/evs.h"
char *delivery_string;
int deliveries = 0;
void evs_deliver_fn (
unsigned int nodeid,
void *msg,
int msg_len)
{
char *buf = msg;
// buf += 100000;
// printf ("Delivery callback\n");
printf ("API '%s' msg '%s'\n", delivery_string, buf);
deliveries++;
}
void evs_confchg_fn (
unsigned int *member_list, int member_list_entries,
unsigned int *left_list, int left_list_entries,
unsigned int *joined_list, int joined_list_entries)
{
int i;
printf ("CONFIGURATION CHANGE\n");
printf ("--------------------\n");
printf ("New configuration\n");
for (i = 0; i < member_list_entries; i++) {
printf ("%x\n", member_list[i]);
}
printf ("Members Left:\n");
for (i = 0; i < left_list_entries; i++) {
printf ("%x\n", left_list[i]);
}
printf ("Members Joined:\n");
for (i = 0; i < joined_list_entries; i++) {
printf ("%x\n", joined_list[i]);
}
}
evs_callbacks_t callbacks = {
evs_deliver_fn,
evs_confchg_fn
};
struct evs_group groups[3] = {
{ "key1" },
{ "key2" },
{ "key3" }
};
char buffer[200000];
struct iovec iov = {
.iov_base = buffer,
.iov_len = sizeof (buffer)
};
int main (void)
{
evs_handle_t handle;
evs_error_t result;
int i = 0;
int fd;
unsigned int member_list[32];
unsigned int local_nodeid;
unsigned int member_list_entries = 32;
result = evs_initialize (&handle, &callbacks);
if (result != EVS_OK) {
printf ("Couldn't initialize EVS service %d\n", result);
exit (0);
}
result = evs_membership_get (handle, &local_nodeid,
member_list, &member_list_entries);
printf ("Current membership from evs_membership_get entries %d\n",
member_list_entries);
for (i = 0; i < member_list_entries; i++) {
printf ("member [%d] is %x\n", i, member_list[i]);
}
printf ("local processor from evs_membership_get %x\n", local_nodeid);
printf ("Init result %d\n", result);
result = evs_join (handle, groups, 3);
printf ("Join result %d\n", result);
result = evs_leave (handle, &groups[0], 1);
printf ("Leave result %d\n", result);
delivery_string = "evs_mcast_joined";
/*
* Demonstrate evs_mcast_joined
*/
for (i = 0; i < 500; i++) {
sprintf (buffer, "evs_mcast_joined: This is message %d", i);
#ifdef COMPILE_OUT
sprintf (buffer,
"%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d",
i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i,
i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i, i);
#endif
try_again_one:
result = evs_mcast_joined (handle, EVS_TYPE_AGREED,
&iov, 1);
if (result == EVS_ERR_TRY_AGAIN) {
//printf ("try again\n");
goto try_again_one;
}
result = evs_dispatch (handle, EVS_DISPATCH_ALL);
}
do {
result = evs_dispatch (handle, EVS_DISPATCH_ALL);
} while (deliveries < 20);
/*
* Demonstrate evs_mcast_joined
*/
delivery_string = "evs_mcast_groups";
for (i = 0; i < 500; i++) {
sprintf (buffer, "evs_mcast_groups: This is message %d", i);
try_again_two:
result = evs_mcast_groups (handle, EVS_TYPE_AGREED,
&groups[1], 1, &iov, 1);
if (result == EVS_ERR_TRY_AGAIN) {
goto try_again_two;
}
result = evs_dispatch (handle, EVS_DISPATCH_ALL);
}
/*
* Flush any pending callbacks
*/
do {
result = evs_dispatch (handle, EVS_DISPATCH_ALL);
} while (deliveries < 900);
evs_fd_get (handle, &fd);
evs_finalize (handle);
return (0);
}

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