windows-nt/Source/XPSP1/NT/net/rras/rtmv2/rtmhndl.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1997 - 98, Microsoft Corporation
Module Name:
rtmhndl.c
Abstract:
Contains routines for operating on handles
to RTM objects like routes and dests.
Author:
Chaitanya Kodeboyina (chaitk) 23-Aug-1998
Revision History:
--*/
#include "pchrtm.h"
#pragma hdrstop
DWORD
WINAPI
RtmReferenceHandles (
IN RTM_ENTITY_HANDLE RtmRegHandle,
IN UINT NumHandles,
IN HANDLE *RtmHandles
)
/*++
Routine Description:
Increment the reference count on objects pointed to by
input RTM handles.
Arguments:
RtmRegHandle - RTM registration handle for calling entity,
NumHandles - Number of handles that are being referenced,
RtmHandles - Array of handles that are being referenced.
Return Value:
Status of the operation
--*/
{
PENTITY_INFO Entity;
POBJECT_HEADER Object;
UINT i;
DBG_VALIDATE_ENTITY_HANDLE(RtmRegHandle, &Entity);
//
// Reference each handle in input array
//
for (i = 0; i < NumHandles; i++)
{
Object = GET_POINTER_FROM_HANDLE(RtmHandles[i]);
#if DBG_HDL
try
{
if (Object->TypeSign != OBJECT_SIGNATURE[atoi(&Object->Type)])
{
continue;
}
}
except(EXCEPTION_EXECUTE_HANDLER)
{
continue;
}
#endif
ReferenceObject(Object, HANDLE_REF);
}
return NO_ERROR;
}
DWORD
WINAPI
RtmDereferenceHandles (
IN RTM_ENTITY_HANDLE RtmRegHandle,
IN UINT NumHandles,
IN HANDLE *RtmHandles
)
/*++
Routine Description:
Decrement the reference count on objects pointed to by
input RTM handles.
Arguments:
RtmRegHandle - RTM registration handle for calling entity,
NumHandles - Number of handles that are being dereferenced,
RtmHandles - Array of handles that are being dereferenced.
Return Value:
Status of the operation
--*/
{
PENTITY_INFO Entity;
POBJECT_HEADER Object;
UINT i;
DBG_VALIDATE_ENTITY_HANDLE(RtmRegHandle, &Entity);
//
// Dereference each handle in input array
//
for (i = 0; i < NumHandles; i++)
{
Object = GET_POINTER_FROM_HANDLE(RtmHandles[i]);
#if DBG_HDL
try
{
if (Object->TypeSign != OBJECT_SIGNATURE[atoi(&Object->Type)])
{
continue;
}
}
except(EXCEPTION_EXECUTE_HANDLER)
{
continue;
}
#endif
//
// This function can be used only if you know
// that the reference count does not go to 0
//
if (DereferenceObject(Object, HANDLE_REF) == 0)
{
ASSERT(FALSE); // ? Destroy which object ?
}
}
return NO_ERROR;
}