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testvotequorum1.c
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testvotequorum1.c
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/*
* Copyright (c) 2009 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Christine Caulfield (ccaulfie@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 CONTIBUTORS "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 <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <corosync/corotypes.h>
#include <corosync/votequorum.h>
static votequorum_handle_t g_handle;
static const char *node_state(int state)
{
switch (state) {
case VOTEQUORUM_NODESTATE_MEMBER:
return "Member";
break;
case VOTEQUORUM_NODESTATE_DEAD:
return "Dead";
break;
case VOTEQUORUM_NODESTATE_LEAVING:
return "Leaving";
break;
default:
return "UNKNOWN";
break;
}
}
static void votequorum_expectedvotes_notification_fn(
votequorum_handle_t handle,
uint64_t context,
uint32_t expected_votes
)
{
printf("votequorum expectedvotes notification called \n");
printf(" expected_votes = %d\n", expected_votes);
}
static void votequorum_notification_fn(
votequorum_handle_t handle,
uint64_t context,
uint32_t quorate,
uint32_t node_list_entries,
votequorum_node_t node_list[]
)
{
int i;
printf("votequorum notification called \n");
printf(" quorate = %d\n", quorate);
printf(" number of nodes = %d\n", node_list_entries);
for (i = 0; i< node_list_entries; i++) {
printf(" %d: %s\n", node_list[i].nodeid, node_state(node_list[i].state));
}
printf("\n");
}
int main(int argc, char *argv[])
{
struct votequorum_info info;
votequorum_callbacks_t callbacks;
int err;
if (argc > 1 && strcmp(argv[1], "-h")==0) {
fprintf(stderr, "usage: %s [new-expected] [new-votes]\n", argv[0]);
return 0;
}
callbacks.votequorum_notify_fn = votequorum_notification_fn;
callbacks.votequorum_expectedvotes_notify_fn = votequorum_expectedvotes_notification_fn;
if ( (err=votequorum_initialize(&g_handle, &callbacks)) != CS_OK)
fprintf(stderr, "votequorum_initialize FAILED: %d\n", err);
if ( (err = votequorum_trackstart(g_handle, g_handle, CS_TRACK_CHANGES)) != CS_OK)
fprintf(stderr, "votequorum_trackstart FAILED: %d\n", err);
if ( (err=votequorum_getinfo(g_handle, 0, &info)) != CS_OK)
fprintf(stderr, "votequorum_getinfo FAILED: %d\n", err);
else {
printf("node votes %d\n", info.node_votes);
printf("expected votes %d\n", info.node_expected_votes);
printf("highest expected %d\n", info.highest_expected);
printf("total votes %d\n", info.total_votes);
printf("quorum %d\n", info.quorum);
printf("flags ");
if (info.flags & VOTEQUORUM_INFO_TWONODE) printf("2Node ");
if (info.flags & VOTEQUORUM_INFO_QUORATE) printf("Quorate ");
if (info.flags & VOTEQUORUM_INFO_WAIT_FOR_ALL) printf("WaitForAll ");
if (info.flags & VOTEQUORUM_INFO_LAST_MAN_STANDING) printf("LastManStanding ");
if (info.flags & VOTEQUORUM_INFO_AUTO_TIE_BREAKER) printf("AutoTieBreaker ");
if (info.flags & VOTEQUORUM_INFO_ALLOW_DOWNSCALE) printf("AllowDownscale ");
printf("\n");
}
if (argc >= 2 && atoi(argv[1])) {
if ( (err=votequorum_setexpected(g_handle, atoi(argv[1]))) != CS_OK)
fprintf(stderr, "set expected votes FAILED: %d\n", err);
}
if (argc >= 3 && atoi(argv[2])) {
if ( (err=votequorum_setvotes(g_handle, 0, atoi(argv[2]))) != CS_OK)
fprintf(stderr, "set votes FAILED: %d\n", err);
}
if (argc >= 2) {
if ( (err=votequorum_getinfo(g_handle, 0, &info)) != CS_OK)
fprintf(stderr, "votequorum_getinfo2 FAILED: %d\n", err);
else {
printf("-------------------\n");
printf("node votes %d\n", info.node_votes);
printf("expected votes %d\n", info.node_expected_votes);
printf("highest expected %d\n", info.highest_expected);
printf("total votes %d\n", info.total_votes);
printf("votequorum %d\n", info.quorum);
printf("flags ");
if (info.flags & VOTEQUORUM_INFO_TWONODE) printf("2Node ");
if (info.flags & VOTEQUORUM_INFO_QUORATE) printf("Quorate ");
if (info.flags & VOTEQUORUM_INFO_WAIT_FOR_ALL) printf("WaitForAll ");
if (info.flags & VOTEQUORUM_INFO_LAST_MAN_STANDING) printf("LastManStanding ");
if (info.flags & VOTEQUORUM_INFO_AUTO_TIE_BREAKER) printf("AutoTieBreaker ");
if (info.flags & VOTEQUORUM_INFO_ALLOW_DOWNSCALE) printf("AllowDownscale ");
printf("\n");
}
}
printf("Waiting for votequorum events, press ^C to finish\n");
printf("-------------------\n");
while (1) {
if (votequorum_dispatch(g_handle, CS_DISPATCH_ALL) != CS_OK) {
fprintf(stderr, "votequorum_dispatch error\n");
return -1;
}
}
return 0;
}

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