Leaked source code of windows server 2003
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/*++
Copyright (c) 1996 Microsoft Corporation
Module Name:
tgroup.c
Abstract:
Test for cluster group API
Author:
John Vert (jvert) 15-Mar-1996
Revision History:
--*/
#include "windows.h"
#include "cluster.h"
#include "stdio.h"
#include "stdlib.h"
int
_cdecl
main (argc, argv)
int argc;
char *argv[];
{
HCLUSTER Cluster;
HRESOURCE Resource;
HGROUP Group;
HNODE Node;
HKEY ClusterRoot;
HCLUSENUM ResEnum;
DWORD ClusterCountBefore, ClusterCountAfter;
HGROUPENUM hGroupEnum;
DWORD GroupCountBefore, GroupCountAfter;
DWORD i,j;
DWORD Status;
WCHAR NameBuf[50];
DWORD NameLen;
WCHAR NodeBuf[50];
DWORD Type;
CLUSTER_GROUP_STATE GroupState;
//
// Dump out group structure for current cluster.
//
Cluster = OpenCluster(NULL);
if (Cluster == NULL) {
fprintf(stderr, "OpenCluster(NULL) failed %d\n",GetLastError());
return(0);
}
//
// Dump groups
//
printf("\n\nENUMERATING GROUPS\n");
ResEnum = ClusterOpenEnum(Cluster, CLUSTER_ENUM_GROUP);
if (ResEnum == NULL) {
fprintf(stderr, "ClusterOpenEnum failed %d\n",GetLastError());
return(0);
}
ClusterCountBefore = ClusterGetEnumCount(ResEnum);
for(i=0; ; i++) {
NameLen = sizeof(NameBuf)/sizeof(WCHAR);
Status = ClusterEnum(ResEnum,
i,
&Type,
NameBuf,
&NameLen);
if (Status == ERROR_NO_MORE_ITEMS) {
break;
} else if (Status != ERROR_SUCCESS) {
fprintf(stderr, "ClusterEnum %d returned error %d\n",i,Status);
return(0);
}
if (Type != CLUSTER_ENUM_GROUP) {
printf("Invalid Type %d returned from ClusterEnum\n", Type);
return(0);
}
Group = OpenClusterGroup(Cluster, NameBuf);
if (Group == NULL) {
fprintf(stderr, "OpenClusterGroup %ws failed %d\n",NameBuf, GetLastError());
return(0);
}
NameLen = sizeof(NodeBuf)/sizeof(WCHAR);
GroupState = GetClusterGroupState(Group, NodeBuf, &NameLen);
if (GroupState == -1) {
fprintf(stderr, "GetClusterGroupState failed %d\n",GetLastError());
return(0);
}
if (GroupState == ClusterGroupOnline) {
printf("Group %ws is ONLINE at node %ws\n",NameBuf, NodeBuf);
} else if (GroupState == ClusterGroupOffline) {
printf("Group %ws is OFFLINE at node %ws\n",NameBuf, NodeBuf);
} else if (GroupState == ClusterGroupFailed) {
printf("Group %ws is FAILED at node %ws\n",NameBuf, NodeBuf);
} else {
fprintf(stderr, "Group %ws is in unknown state %d on node %ws\n",NameBuf, GroupState, NodeBuf);
}
hGroupEnum = ClusterGroupOpenEnum(Group,
CLUSTER_GROUP_ENUM_CONTAINS | CLUSTER_GROUP_ENUM_NODES);
if (hGroupEnum == NULL) {
fprintf(stderr, "Group %ws failed to open enum %d\n",NameBuf, GetLastError());
} else {
GroupCountBefore = ClusterGroupGetEnumCount(hGroupEnum);
for (j=0; ; j++) {
NameLen = sizeof(NameBuf)/sizeof(WCHAR);
Status = ClusterGroupEnum(hGroupEnum,
j,
&Type,
NameBuf,
&NameLen);
if (Status == ERROR_NO_MORE_ITEMS) {
break;
} else if (Status != ERROR_SUCCESS) {
fprintf(stderr, "Failed to enum group item %d, error %d\n",j,Status);
} else {
switch (Type) {
case CLUSTER_GROUP_ENUM_NODES:
printf("\tpreferred node %ws\n",NameBuf);
break;
case CLUSTER_GROUP_ENUM_CONTAINS:
printf("\tcontains resource %ws\n",NameBuf);
break;
default:
fprintf(stderr, "\tUnknown enum type %d\n",Type);
break;
}
}
}
if (Status == ERROR_NO_MORE_ITEMS) {
printf("\nGroup count: %d\n", j);
GroupCountAfter = ClusterGroupGetEnumCount(hGroupEnum);
if (GroupCountBefore != GroupCountAfter)
fprintf(stderr, "\nReported group count was %d before enumeration, and %d afterward\n", GroupCountBefore, GroupCountAfter);
else if (j != GroupCountBefore)
fprintf(stderr, "\nReported group count: %d\n", GroupCountBefore);
}
ClusterGroupCloseEnum(hGroupEnum);
}
CloseClusterGroup(Group);
}
if (Status == ERROR_NO_MORE_ITEMS) {
printf("\nCluster count: %d\n", i);
ClusterCountAfter = ClusterGetEnumCount(ResEnum);
if (ClusterCountBefore != ClusterCountAfter)
fprintf(stderr, "\nReported cluster count was %d before enumeration, and %d afterward\n", ClusterCountBefore, ClusterCountAfter);
else if (i != ClusterCountBefore)
fprintf(stderr, "\nReported cluster count: %d\n", ClusterCountBefore);
}
ClusterCloseEnum(ResEnum);
CloseCluster(Cluster);
}