154 lines
3.2 KiB
C++
154 lines
3.2 KiB
C++
/*++
|
|
|
|
Copyright (c) 1997 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
iisassoc.hxx
|
|
|
|
Abstract:
|
|
|
|
This include file contains the declaration of the IIS_ASSOCIATION class.
|
|
An IIS_ASSOCIATION is used to create an N-way association between
|
|
IIS_ENDPOINTs and IIS_SERVER_INSTANCEs.
|
|
|
|
The current IIS_ASSOCIATION is hash based. It may hash on either the
|
|
IP address, the host name, or both. The hash method is specified when
|
|
the object is constructed.
|
|
|
|
Author:
|
|
|
|
Keith Moore (keithmo) 16-Jan-1997
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
|
|
#ifndef _IISASSOC_HXX_
|
|
#define _IISASSOC_HXX_
|
|
|
|
|
|
//
|
|
// We will need to do some perf tuning to get a more reasonable value for
|
|
// this number. We may need to make this metabase configurable, or at least
|
|
// base it on the 'size' of the server.
|
|
//
|
|
|
|
#define DEFAULT_ASSOCIATION_HASH_BUCKETS 97
|
|
|
|
|
|
typedef
|
|
BOOL
|
|
(WINAPI * LPFN_ASSOCIATION_CALLBACK)(
|
|
IN LPVOID CallbackContext,
|
|
IN LPVOID DescriptorContext,
|
|
IN DWORD IpAddress,
|
|
IN const CHAR * HostName
|
|
);
|
|
|
|
class IIS_ASSOCIATION {
|
|
|
|
public:
|
|
|
|
//
|
|
// This hash context is used to avoid redundant hash context calculations
|
|
// while searching through multiple associations.
|
|
//
|
|
|
|
typedef struct _HASH_CONTEXT {
|
|
|
|
DWORD IpAddressHash;
|
|
DWORD HostNameHash;
|
|
|
|
} HASH_CONTEXT, *PHASH_CONTEXT;
|
|
|
|
static
|
|
VOID
|
|
InitializeHashContext(
|
|
OUT PHASH_CONTEXT HashContext
|
|
) {
|
|
HashContext->IpAddressHash = 0;
|
|
HashContext->HostNameHash = 0;
|
|
}
|
|
|
|
//
|
|
// Usual constructor/destructor stuff.
|
|
//
|
|
|
|
IIS_ASSOCIATION(
|
|
IN BOOL HashIpAddress,
|
|
IN BOOL HashHostName,
|
|
IN INT NumHashBuckets = DEFAULT_ASSOCIATION_HASH_BUCKETS
|
|
);
|
|
|
|
~IIS_ASSOCIATION();
|
|
|
|
//
|
|
// Descriptor management.
|
|
//
|
|
|
|
DWORD
|
|
AddDescriptor(
|
|
IN DWORD IpAddress,
|
|
IN const CHAR * HostName OPTIONAL,
|
|
IN LPVOID Context,
|
|
IN OUT PHASH_CONTEXT HashContext = NULL
|
|
);
|
|
|
|
DWORD
|
|
LookupDescriptor(
|
|
IN DWORD IpAddress,
|
|
IN const CHAR * HostName OPTIONAL,
|
|
OUT LPVOID *Context,
|
|
IN OUT PHASH_CONTEXT HashContext = NULL
|
|
);
|
|
|
|
DWORD
|
|
RemoveDescriptor(
|
|
IN DWORD IpAddress,
|
|
IN const CHAR * HostName OPTIONAL,
|
|
OUT LPVOID *Context,
|
|
IN OUT PHASH_CONTEXT HashContext = NULL
|
|
);
|
|
|
|
VOID
|
|
EnumDescriptors(
|
|
IN LPFN_ASSOCIATION_CALLBACK Callback,
|
|
IN LPVOID CallbackContext
|
|
);
|
|
|
|
private:
|
|
|
|
VOID
|
|
CalculateHash(
|
|
IN DWORD IpAddress,
|
|
IN const CHAR * HostName OPTIONAL,
|
|
OUT PHASH_CONTEXT HashContext
|
|
);
|
|
|
|
struct _HASH_ENTRY *
|
|
FindDescriptor(
|
|
IN DWORD IpAddress,
|
|
IN const CHAR * HostName OPTIONAL,
|
|
IN PHASH_CONTEXT HashContext
|
|
);
|
|
|
|
struct _HASH_ENTRY *
|
|
CreateHashEntry(
|
|
IN DWORD IpAddress,
|
|
IN const CHAR * HostName OPTIONAL,
|
|
IN PHASH_CONTEXT HashContext
|
|
);
|
|
|
|
INT m_NumHashBuckets;
|
|
PLIST_ENTRY m_HashBuckets;
|
|
BOOL m_HashIpAddress;
|
|
BOOL m_HashHostName;
|
|
|
|
}; // IIS_ASSOCIATION
|
|
|
|
|
|
#endif // _IISASSOC_HXX_
|
|
|