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/*
* Copyright (c) 2021 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 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 <inttypes.h>
#include <stdio.h>
#include <errno.h>
#include <pthread.h>
#include <corosync/corotypes.h>
#include <corosync/cfg.h>
static void shutdown_callback(corosync_cfg_handle_t handle, corosync_cfg_shutdown_flags_t flags)
{
/* Prevent shutdown */
printf("In shutdown callback - denying corosync shutdown\n");
corosync_cfg_replyto_shutdown(handle, COROSYNC_CFG_SHUTDOWN_FLAG_NO);
}
static void *dispatch_thread(void *arg)
{
corosync_cfg_handle_t handle = (corosync_cfg_handle_t) arg;
int res = CS_OK;
while (res == CS_OK) {
res = corosync_cfg_dispatch(handle, CS_DISPATCH_ONE);
}
fprintf(stderr, "ERROR: Corosync shut down\n");
return (void*)0;
}
int main (int argc, char *argv[]) {
corosync_cfg_handle_t cfg_handle;
corosync_cfg_handle_t cfg_handle1;
unsigned int local_nodeid;
int i;
int res;
struct corosync_cfg_node_status_v1 ns;
pthread_t thread;
corosync_cfg_callbacks_t callbacks = {
.corosync_cfg_shutdown_callback = shutdown_callback
};
res = corosync_cfg_initialize(&cfg_handle, &callbacks);
if (res != CS_OK) {
fprintf(stderr, "corosync_Cfg_initialize(0) failed: %d\n", res);
return 1;
}
/* Start a new handle & thread to prevent the shutdown we request later on */
res = corosync_cfg_initialize(&cfg_handle1, &callbacks);
if (res != CS_OK) {
fprintf(stderr, "corosync_cfg_initialize(1) failed: %d\n", res);
return 1;
}
res = corosync_cfg_trackstart(cfg_handle1, 0);
if (res != CS_OK) {
fprintf(stderr, "corosync_cfg_initialize(1) failed: %d\n", res);
return 1;
}
res = pthread_create(&thread, NULL, dispatch_thread, (void*)cfg_handle1);
if (res != 0) {
perror("pthread_create failed");
return 1;
}
/* Exercise a few functions */
res = corosync_cfg_local_get(cfg_handle, &local_nodeid);
if (res != CS_OK) {
fprintf(stderr, "corosync_cfg_local_get failed: %d\n", res);
return 1;
}
printf("Local nodeid is %d\n", local_nodeid);
/*
* Test node_status_get.
* node status for the local node looks odd (cos it's the loopback connection), so
* we try for a node ID one less or more than us just to get output that looks
* sensible to the user.
*/
res = corosync_cfg_node_status_get(cfg_handle, local_nodeid-1, CFG_NODE_STATUS_V1, &ns);
if (res != CS_OK) {
res = corosync_cfg_node_status_get(cfg_handle, local_nodeid+1, CFG_NODE_STATUS_V1, &ns);
}
if (res != CS_OK) {
fprintf(stderr, "corosync_cfg_node_status_get failed: %d\n", res);
return 1;
}
printf("Node Status for nodeid %d\n", ns.nodeid);
printf(" reachable: %d\n", ns.reachable);
printf(" remote: %d\n", ns.remote);
printf(" onwire_min: %d\n", ns.onwire_min);
printf(" onwire_max: %d\n", ns.onwire_max);
printf(" onwire_ver: %d\n", ns.onwire_ver);
for (i = 0; i<CFG_MAX_LINKS; i++) {
if (ns.link_status[i].enabled) {
printf(" Link %d\n", i);
printf(" connected: %d\n", ns.link_status[i].connected);
printf(" mtu: %d\n", ns.link_status[i].mtu);
printf(" src: %s\n", ns.link_status[i].src_ipaddr);
printf(" dst: %s\n", ns.link_status[i].dst_ipaddr);
}
}
/* This shutdown request should be denied by the thread */
res = corosync_cfg_try_shutdown(cfg_handle, COROSYNC_CFG_SHUTDOWN_FLAG_REQUEST);
if (res == CS_OK) {
fprintf(stderr, "ERROR: corosync_cfg_try_shutdown suceeded. should have been prevented\n");
}
if (res != CS_ERR_BUSY && res != CS_OK) {
fprintf(stderr, "corosync_cfg_try_shutdown failed: %d\n", res);
return 1;
}
/*
* Test bug presented in 3.1.1 and 3.1.2 that makes trackstop blocks forever
*/
res = corosync_cfg_trackstop(cfg_handle1);
if (res != CS_OK) {
fprintf(stderr, "corosync_cfg_trackstop failed: %d\n", res);
return 1;
}
return 0;
}
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