Leaked source code of windows server 2003
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Copyright (c) 1989-1999 Microsoft Corporation
Module Name:
resmgr.cxx
Abstract:
Stub and auxillary routine resource management helper routines.
Notes:
This file has a dependency on the type graph implementation.
History:
Sep-15-1993 VibhasC Created.
----------------------------------------------------------------------------*/
/****************************************************************************
* include files
***************************************************************************/
#include "becls.hxx"
#pragma hdrstop
void GenNdrCorrRes( ANALYSIS_INFO* pAna );
void
CG_PROC::C_PreAllocateResources(
ANALYSIS_INFO * pAna )
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Routine Description:
Pre-allocate stub resources like local variables, parameter variables
etc for the client side stub.
Arguments:
pAna - A pointer to the analysis block.
Return Value:
None.
Notes:
1. All parameters are declared as resources for the client stub.
2. Standard client side resources like the stub message, rpc message
status etc are local resources.
----------------------------------------------------------------------------*/
{
node_id * pRpcMessageType = new node_id( RPC_MESSAGE_VAR_NAME );
node_id * pStubMessageType= new node_id( STUB_MESSAGE_VAR_NAME );
node_id * pStatus = new node_id( RPC_STATUS_VAR_NAME );
CG_ITERATOR ParamList;
// Set up local copies of the stub message and the rpc message.
pRpcMessageType->SetBasicType( (node_skl *)
new node_def (RPC_MESSAGE_TYPE_NAME) );
pRpcMessageType->SetEdgeType( EDGE_USE );
pAna->AddLocalResource( RPC_MESSAGE_VAR_NAME,
(node_skl *) pRpcMessageType
);
pStubMessageType->SetBasicType( (node_skl *)
new node_def (STUB_MESSAGE_TYPE_NAME) );
pStubMessageType->SetEdgeType( EDGE_USE );
pAna->AddLocalResource( STUB_MESSAGE_VAR_NAME,
(node_skl *) pStubMessageType
);
if( HasStatuses() )
{
pStatus = new node_id( RPC_STATUS_VAR_NAME );
pStatus->SetBasicType( (node_skl *)
new node_def (RPC_STATUS_TYPE_NAME) );
pStatus->SetEdgeType( EDGE_USE );
SetStatusResource( pAna->AddLocalResource( RPC_STATUS_VAR_NAME,
(node_skl *) pStatus
));
}
// resource for cache
// /deny causes a switch to /Oicf. This code will not be executed
if ( fHasDeny )
{
GenNdrCorrRes( pAna );
}
// Add all params as param resources only if necessary (at least one param).
if( GetMembers( ParamList ) )
{
CG_PARAM * pParam;
node_skl * pType;
ITERATOR_INIT( ParamList );
while( ITERATOR_GETNEXT( ParamList, pParam ) )
{
pType = pParam->GetType();
pAna->AddParamResource( (PNAME) pType->GetSymName(),
pType->GetChild() //Yes not getbasictype()
);
}
}
//
// Check for a structure or union return type. If one exists we must
// allocate a local pointer with a munged name for the eventual
// Ndr unmarshall call.
//
CG_RETURN * pReturn;
if ( (pReturn = GetReturnType()) == 0 )
return;
//
// If this is a by-value structure or union then we allocate a
// local which is a pointer to the same type.
//
if ( ((CG_NDR *)pReturn->GetChild())->IsStruct() ||
((CG_NDR *)pReturn->GetChild())->IsUnion() ||
((CG_NDR *)pReturn->GetChild())->IsXmitRepOrUserMarshal() )
{
node_id * pLocalType;
char * pName;
pName = LOCAL_NAME_POINTER_MANGLE RETURN_VALUE_VAR_NAME;
pLocalType = MakePtrIDNodeFromTypeName( pName, "void", 0 );
pAna->AddLocalResource( pName,
(node_skl *) pLocalType );
}
}
void
CG_PROC::S_PreAllocateResources(
ANALYSIS_INFO * pAna )
/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Routine Description:
Pre-allocate variables that are needed on the server side.
Arguments:
pAna - A pointer to the analysis block.
Return Value:
None.
Notes:
1. The rpc message is a parameter resource allocated on the server side.
2. All other local variables, are decided during/after the analysis phase.
----------------------------------------------------------------------------*/
{
node_id * pStubMessageType= new node_id( STUB_MESSAGE_VAR_NAME );
node_param * pRpcMessageType = new node_param();
node_param * pDWordType = new node_param();
CG_ITERATOR ParamList;
// The local copy of the rpc message pointer.
pRpcMessageType->SetSymName( PRPC_MESSAGE_VAR_NAME );
pRpcMessageType->SetBasicType( (node_skl *)
new node_def (PRPC_MESSAGE_TYPE_NAME) );
pRpcMessageType->SetEdgeType( EDGE_USE );
pAna->AddParamResource( PRPC_MESSAGE_VAR_NAME,
(node_skl *) pRpcMessageType
);
// For object procs , one more param after the rpc message.
if( IsObject() )
{
// DWORD * pDwPhase parameter
pDWordType->SetSymName( "_pdwStubPhase" );
pDWordType->SetBasicType( (node_skl *)new node_def( "DWORD *" ) );
pDWordType->SetEdgeType( EDGE_USE );
pAna->AddParamResource( "_pdwStubPhase", pDWordType );
}
// Add the stub message local variable.
pStubMessageType->SetBasicType( (node_skl *)
new node_def (STUB_MESSAGE_TYPE_NAME) );
pStubMessageType->SetEdgeType( EDGE_USE );
pAna->AddLocalResource( STUB_MESSAGE_VAR_NAME,
(node_skl *) pStubMessageType
);
if ( HasNotifyFlag() )
{
node_id * pNotifyFlag = new node_id( NOTIFY_FLAG_VAR_NAME );
pNotifyFlag->SetBasicType( (node_skl *) new node_def( "boolean" ));
pNotifyFlag->SetEdgeType( EDGE_USE );
pAna->AddLocalResource( NOTIFY_FLAG_VAR_NAME,
(node_skl *) pNotifyFlag );
}
// resource for cache
// /deny causes a switch to /Oicf. This code will not be executed
if ( fHasDeny )
{
GenNdrCorrRes( pAna );
}
//
// Check for by-value [in] structures and unions. We must allocate
// a local which is a pointer to the same type for these.
//
// Also check for arrays so I can put a hack in until we get their
// allocation figured out.
//
if( GetMembers( ParamList ) )
{
CG_PARAM * pParam;
node_skl * pType;
while( ITERATOR_GETNEXT( ParamList, pParam ) )
{
pType = pParam->GetType();
CG_NDR * pChild = (CG_NDR *)pParam->GetChild();
ID_CG ChildID = pChild->GetCGID();
if ( ChildID == ID_CG_GENERIC_HDL )
{
pChild = (CG_NDR *)pChild->GetChild();
ChildID = pChild->GetCGID();
}
//
// If this is a by-value structure or union then we allocate a
// local which is a pointer to the same type.
//
if ( pChild->IsStruct() || pChild->IsUnion() ||
pChild->IsXmitRepOrUserMarshal() )
{
char * pName;
node_id * pLocalType;
char * pPlainName = pType->GetSymName();
pName = new char[strlen( pPlainName ) + 10];
strcpy( pName, LOCAL_NAME_POINTER_MANGLE );
strcat( pName, (PNAME) pPlainName );
pLocalType = MakePtrIDNodeFromTypeName( pName,
"void",
0 );
pAna->AddLocalResource( pName,
(node_skl *) pLocalType );
}
}
}
}
/****************************************************************************
utility fns
****************************************************************************/
node_id *
MakeIDNode(
PNAME pName,
node_skl * pType,
expr_node * pExpr )
{
node_id * pID = new node_id( (char *)pName );
pID->SetBasicType( pType );
pID->SetEdgeType( EDGE_USE );
pID->SetExpr( pExpr );
return pID;
}
node_id *
MakePtrIDNode(
PNAME pName,
node_skl * pType,
expr_node * pExpr )
{
node_id * pID = new node_id( (char *)pName );
node_pointer * pP = new node_pointer();
pP->SetBasicType( pType );
pP->SetEdgeType( EDGE_USE );
pID->SetBasicType( pP );
pID->SetEdgeType( EDGE_USE );
pID->SetExpr( pExpr );
return pID;
}
node_id *
MakePtrIDNodeWithCastedExpr(
PNAME pName,
node_skl * pType,
expr_node * pExpr )
{
node_id * pID = new node_id( (char *)pName );
node_pointer * pP = new node_pointer();
pP->SetBasicType( pType );
pP->SetEdgeType( EDGE_USE );
pID->SetBasicType( pP );
pID->SetEdgeType( EDGE_USE );
expr_cast * pCast = new expr_cast( pP, pExpr );
pID->SetExpr( pCast );
return pID;
}
node_id *
MakeIDNodeFromTypeName(
PNAME pName,
PNAME pTypeName,
expr_node * pExpr )
{
node_id * pID = new node_id( pName );
node_def * pDef = new node_def(pTypeName);
pID->SetBasicType( pDef );
pID->SetEdgeType( EDGE_USE );
pID->SetExpr( pExpr );
return pID;
}
node_id *
MakePtrIDNodeFromTypeName(
PNAME pName,
PNAME pTypeName,
expr_node * pExpr )
{
node_id * pID = new node_id( pName );
node_def * pDef = new node_def(pTypeName);
node_pointer * pPtr = new node_pointer();
pPtr->SetBasicType( pDef );
pPtr->SetEdgeType( EDGE_USE );
pID->SetBasicType( pPtr );
pID->SetEdgeType( EDGE_USE );
pID->SetExpr( pExpr );
return pID;
}
node_id *
MakePtrIDNodeFromTypeNameWithCastedExpr(
PNAME pName,
PNAME pTypeName,
expr_node * pExpr )
{
node_id * pID = new node_id( pName );
node_def * pDef = new node_def(pTypeName);
node_pointer * pPtr = new node_pointer();
pPtr->SetBasicType( pDef );
pPtr->SetEdgeType( EDGE_USE );
pID->SetBasicType( pPtr );
pID->SetEdgeType( EDGE_USE );
expr_cast * pCast = new expr_cast( pPtr, pExpr );
pID->SetExpr( pCast );
return pID;
}
node_param *
MakeParamNode(
PNAME pName,
node_skl * pType )
{
node_param * pID = new node_param();
pID->SetSymName( pName );
pID->SetBasicType( pType );
pID->SetEdgeType( EDGE_USE );
return pID;
}
node_param *
MakePtrParamNode(
PNAME pName,
node_skl * pType )
{
node_param * pID = new node_param( );
node_pointer * pP = new node_pointer();
pID->SetSymName( pName );
pP->SetBasicType( pType );
pP->SetEdgeType( EDGE_USE );
pID->SetBasicType( pP );
pID->SetEdgeType( EDGE_USE );
return pID;
}
node_param *
MakeParamNodeFromTypeName(
PNAME pName,
PNAME pTypeName )
{
node_param * pID = new node_param();
node_def * pDef = new node_def(pTypeName);
pID->SetSymName( pName );
pID->SetBasicType( pDef );
pID->SetEdgeType( EDGE_USE );
return pID;
}
node_param *
MakePtrParamNodeFromTypeName(
PNAME pName,
PNAME pTypeName )
{
node_param * pID = new node_param();
node_def * pDef = new node_def(pTypeName);
node_pointer * pPtr = new node_pointer();
pID->SetSymName( pName );
pPtr->SetBasicType( pDef );
pPtr->SetEdgeType( EDGE_USE );
pID->SetBasicType( pPtr );
pID->SetEdgeType( EDGE_USE );
return pID;
}
node_proc * MakeProcNodeWithNewName(
PNAME pName,
node_proc * pProc )
{
node_proc * pNewProc = new node_proc( pProc );
pNewProc->SetSymName( pName );
return pNewProc;
}
void
GenNdrCorrRes (
ANALYSIS_INFO* pAna
)
{
node_id* pCacheType = new node_id( NDR_CORR_CACHE_VAR_NAME );
expr_node* pExpr = new expr_constant( unsigned long( NDR_CORR_CACHE_SIZE ) );
node_array* pArray = new node_array( 0, pExpr );
node_base_type* pBaseType = new node_base_type( NODE_LONG, ATTR_UNSIGNED );
pBaseType->SetSymName( "long" );
pArray->SetBasicType( pBaseType );
pArray->SetEdgeType( EDGE_USE );
pCacheType->SetBasicType( pArray );
pCacheType->SetEdgeType( EDGE_USE );
pAna->AddLocalResource( NDR_CORR_CACHE_VAR_NAME, pCacheType );
}