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/*
* ccm.c: A consensus cluster membership sample client
*
* Copyright (c) International Business Machines Corp., 2000
* Author: Ram Pai (linuxram@us.ibm.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <lha_internal.h>
#include <ocf/oc_event.h>
#include <stdio.h>
#include <sys/time.h>
#include <sys/types.h>
#include <string.h>
#include <unistd.h>
#include <syslog.h>
#include <clplumbing/cl_log.h>
static oc_ev_t *ev_token;
extern void oc_ev_special(const oc_ev_t *, oc_ev_class_t , int );
static void
my_ms_events(oc_ed_t event, void *cookie,
size_t size, const void *data)
{
const oc_ev_membership_t *oc = (const oc_ev_membership_t *)data;
uint i;
int i_am_in;
cl_log(LOG_INFO,"event=%s:",
event==OC_EV_MS_NEW_MEMBERSHIP?"NEW MEMBERSHIP":
event==OC_EV_MS_NOT_PRIMARY?"NOT PRIMARY":
event==OC_EV_MS_PRIMARY_RESTORED?"PRIMARY RESTORED":
event==OC_EV_MS_EVICTED?"EVICTED":
"NO QUORUM MEMBERSHIP"
);
if(OC_EV_MS_EVICTED == event) {
oc_ev_callback_done(cookie);
return;
}
cl_log(LOG_INFO,"instance=%d\n"
"# ttl members=%d, ttl_idx=%d\n"
"# new members=%d, new_idx=%d\n"
"# out members=%d, out_idx=%d",
oc->m_instance,
oc->m_n_member,
oc->m_memb_idx,
oc->m_n_in,
oc->m_in_idx,
oc->m_n_out,
oc->m_out_idx);
i_am_in=0;
cl_log(LOG_INFO, "NODES IN THE PRIMARY MEMBERSHIP");
for(i=0; i<oc->m_n_member; i++) {
cl_log(LOG_INFO,"\tnodeid=%d, uname=%s, born=%d",
oc->m_array[oc->m_memb_idx+i].node_id,
oc->m_array[oc->m_memb_idx+i].node_uname,
oc->m_array[oc->m_memb_idx+i].node_born_on);
if(oc_ev_is_my_nodeid(ev_token, &(oc->m_array[i]))){
i_am_in=1;
}
}
if(i_am_in) {
cl_log(LOG_INFO,"MY NODE IS A MEMBER OF THE MEMBERSHIP LIST");
}
cl_log(LOG_INFO, "NEW MEMBERS");
if(oc->m_n_in==0)
cl_log(LOG_INFO, "\tNONE");
for(i=0; i<oc->m_n_in; i++) {
cl_log(LOG_INFO,"\tnodeid=%d, uname=%s, born=%d",
oc->m_array[oc->m_in_idx+i].node_id,
oc->m_array[oc->m_in_idx+i].node_uname,
oc->m_array[oc->m_in_idx+i].node_born_on);
}
cl_log(LOG_INFO, "MEMBERS LOST");
if(oc->m_n_out==0)
cl_log(LOG_INFO, "\tNONE");
for(i=0; i<oc->m_n_out; i++) {
cl_log(LOG_INFO,"\tnodeid=%d, uname=%s, born=%d",
oc->m_array[oc->m_out_idx+i].node_id,
oc->m_array[oc->m_out_idx+i].node_uname,
oc->m_array[oc->m_out_idx+i].node_born_on);
}
cl_log(LOG_INFO, "-----------------------");
oc_ev_callback_done(cookie);
}
int
main(int argc, char *argv[])
{
int ret;
fd_set rset;
int my_ev_fd;
cl_log_set_entity(argv[0]);
cl_log_enable_stderr(TRUE);
cl_log_set_facility(LOG_USER);
oc_ev_register(&ev_token);
oc_ev_set_callback(ev_token, OC_EV_MEMB_CLASS, my_ms_events, NULL);
oc_ev_special(ev_token, OC_EV_MEMB_CLASS, 0/*don't care*/);
ret = oc_ev_activate(ev_token, &my_ev_fd);
if(ret){
oc_ev_unregister(ev_token);
return(1);
}
for (;;) {
FD_ZERO(&rset);
FD_SET(my_ev_fd, &rset);
if(select(my_ev_fd + 1, &rset, NULL,NULL,NULL) == -1){
perror("select");
return(1);
}
if(oc_ev_handle_event(ev_token)){
cl_log(LOG_ERR,"terminating");
return(1);
}
}
return 0;
}
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