static void dump_daemon_nodes(void)
{
int fd, i;
user_sig &= ~(1 << SIGUSR1);
fd = open("/tmp/merlind.nodeinfo", O_CREAT | O_TRUNC | O_WRONLY, 0644);
if (fd < 0) {
lerr("USERSIG: Failed to open /tmp/merlind.nodeinfo for dumping: %s", strerror(errno));
return;
}
dump_nodeinfo(&ipc, fd, 0);
for (i = 0; i < num_nodes; i++)
dump_nodeinfo(node_table[i], fd, i + 1);
}
static void
getnode_callback(SaInvocationT invocation, SaClmClusterNodeT *clusterNode
, SaErrorT error)
{
if (error != SA_OK) {
fprintf(stderr, "Get Node Callback failed [%d]\n", error);
exit(1);
}
fprintf(stderr, "Invocation [%d]\n", invocation);
dump_nodeinfo(clusterNode);
}
int main(void)
{
SaSelectionObjectT st;
SaErrorT ret;
SaClmNodeIdT nid;
SaClmCallbacksT my_callbacks = {
.saClmClusterTrackCallback
= (SaClmClusterTrackCallbackT)track_callback,
.saClmClusterNodeGetCallback
= (SaClmClusterNodeGetCallbackT)getnode_callback
};
if ((ret = saClmInitialize(&hd, &my_callbacks, NULL)) != SA_OK) {
fprintf(stderr, "saClmInitialize error, errno [%d]\n",ret);
return 1;
}
if ((ret = saClmSelectionObjectGet(&hd, &st)) != SA_OK) {
fprintf(stderr, "saClmSelectionObjectGet error, errno [%d]\n"
, ret);
return 1;
}
nid = 0;
/* Synchronously get nodeId information */
printf("-------------------------------------------------\n");
printf("Get nodeId [%lu] info by SaClmClusterNodeGet\n", nid);
if ((ret = saClmClusterNodeGet(nid, 10, &cn)) != SA_OK) {
if (ret == SA_ERR_INVALID_PARAM) {
fprintf(stderr, "NodeId [%lu] record not found!\n",nid);
} else {
fprintf(stderr
, "saClmClusterNodeGet error, errno [%d]\n"
, ret);
return 1;
}
} else {
dump_nodeinfo(&cn);
}
/* Asynchronously get my nodeId information */
nid = 1;
printf("-------------------------------------------------\n");
printf("Get nodeId [%lu] info by SaClmClusterNodeGetAsync\n", nid);
if ((ret = saClmClusterNodeGetAsync(&hd, 1234, nid, &cn)) != SA_OK) {
if (ret == SA_ERR_INVALID_PARAM) {
fprintf(stderr, "NodeId [%lu] record not found!\n",nid);
} else {
fprintf(stderr
, "saClmClusterNodeGet error, errno [%d]\n"
, ret);
return 1;
}
}
/* Start to track cluster membership changes events */
track_start(SIGUSR1);
signal(SIGUSR2, &track_stop);
for (;;) {
fd_set rset;
FD_ZERO(&rset);
FD_SET(st, &rset);
if (select(st + 1, &rset, NULL, NULL, NULL) == -1) {
/* TODO should we use pselect here? */
if (errno == EINTR)
continue;
else {
perror("select");
return 1;
}
}
if ((ret = saClmDispatch(&hd, SA_DISPATCH_ALL)) != SA_OK) {
if (ret == SA_ERR_LIBRARY) {
fprintf(stderr, "I am evicted!\n");
return 1;
}
fprintf(stderr, "saClmDispatch error, errno [%d]\n"
, ret);
return 1;
}
}
return 0;
}