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242 lines
4.7 KiB
242 lines
4.7 KiB
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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ilreg.cxx
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Abstract:
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This file implements the type registry for structure/union reuse.
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Notes:
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History:
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Oct-25-1993 GregJen Created.
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----------------------------------------------------------------------------*/
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/****************************************************************************
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* include files
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***************************************************************************/
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#include "becls.hxx"
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#pragma hdrstop
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#include "ilreg.hxx"
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/***********************************************************************
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* global data
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**********************************************************************/
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// #define trace_reuse
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REUSE_DICT * pReUseDict;
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REUSE_DICT * pLocalReUseDict;
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REUSE_DICT::REUSE_DICT()
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: Dictionary()
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{
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}
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int
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REUSE_DICT::Compare( pUserType pL, pUserType pR )
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{
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long l1 = (long) ((REUSE_INFO *)pL)->pType;
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long l2 = (long) ((REUSE_INFO *)pR)->pType;
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return l1 - l2;
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}
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REUSE_INFO *
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REUSE_DICT::IsRegistered(
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REUSE_INFO * pInfo )
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/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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Routine Description:
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Search for a type with the reuse registry.
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Arguments:
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pInfo - A pointer to the type being registered.
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Return Value:
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The node that gets registered.
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Notes:
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----------------------------------------------------------------------------*/
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{
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#ifdef trace_reuse
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printf(". . .Reuse: finding %08x\n", pInfo->pType );
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fflush(stdout);
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#endif
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Dict_Status Status = Dict_Find( pInfo );
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switch( Status )
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{
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case EMPTY_DICTIONARY:
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case ITEM_NOT_FOUND:
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return (REUSE_INFO *)0;
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default:
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return (REUSE_INFO *)Dict_Curr_Item();
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}
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}
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REUSE_INFO *
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REUSE_DICT::Register(
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REUSE_INFO * pInfo )
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/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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Routine Description:
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Register a type with the dictionary.
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Arguments:
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pType - A pointer to the type node.
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Return Value:
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The final inserted type.
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Notes:
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----------------------------------------------------------------------------*/
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{
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#ifdef trace_reuse
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printf(". . .Reuse: inserting %08x\n", pInfo->pType );
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fflush(stdout);
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#endif
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Dict_Insert( (pUserType) pInfo );
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return pInfo;
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}
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BOOL
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REUSE_DICT::GetReUseEntry(
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REUSE_INFO * & pRI,
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node_skl * pNode )
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/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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Routine Description:
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Register a type with the dictionary.
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Arguments:
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pRI - A pointer to the returned REUSE_INFO block
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pNode - A pointer to the type node.
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Return Value:
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True if the entry was already in the table,
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False if the entry is new.
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Notes:
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----------------------------------------------------------------------------*/
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{
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REUSE_INFO TempEntry(pNode);
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REUSE_INFO * pRealEntry;
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#ifdef trace_reuse
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printf(". . .Reuse: searching for %08x\n", pNode );
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fflush(stdout);
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#endif
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if ( !(pRealEntry = IsRegistered( &TempEntry )) )
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{
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pRealEntry = new REUSE_INFO( pNode );
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Register( pRealEntry );
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pRI = pRealEntry;
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#ifdef trace_reuse
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printf(". . .Reuse: new node %08x\n", pRI );
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fflush(stdout);
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#endif
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return FALSE;
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}
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pRI = pRealEntry;
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#ifdef trace_reuse
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printf(". . .Reuse: found %08x\n", pRI );
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fflush(stdout);
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#endif
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return TRUE;
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}
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void
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REUSE_DICT::MakeIterator(
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ITERATOR& ListIter )
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/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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Routine Description:
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Get a list of structs and unions into the specified iterator.
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Arguments:
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ListIter - A reference to the iterator class where the list is
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accumulated.
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Return Value:
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A count of the number of resources.
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Notes:
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----------------------------------------------------------------------------*/
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{
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REUSE_INFO * pR;
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Dict_Status Status;
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//
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// Get to the top of the dictionary.
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//
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Status = Dict_Next( (pUserType) 0 );
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//
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// Iterate till the entire dictionary is done.
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//
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while( SUCCESS == Status )
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{
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pR = (REUSE_INFO *)Dict_Curr_Item();
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ITERATOR_INSERT( ListIter, pR->pSavedCG );
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Status = Dict_Next( pR );
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}
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return;
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}
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/****************************************************************************
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utility functions.
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****************************************************************************/
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int
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CompareReUseKey( void * p1, void *p2 )
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{
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#ifdef trace_reuse
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printf(". . .Reuse: comparing %08x to %08x (in)\n", p1, p2 );
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fflush(stdout);
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#endif
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unsigned long l1 = (unsigned long)
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((REUSE_INFO *)p1)->pType;
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unsigned long l2 = (unsigned long)
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((REUSE_INFO *)p2)->pType;
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#ifdef trace_reuse
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printf(". . .Reuse: comparing %08x to %08x\n", l1, l2 );
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fflush(stdout);
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#endif
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if( l1 < l2 ) return -1;
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else if( l1 > l2 ) return 1;
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return 0;
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}
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void
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PrintReUseKey( void * p1 ) { }
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