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/**CFile****************************************************************
FileName [nmApi.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Name manager.]
Synopsis [APIs of the name manager.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: nmApi.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "nmInt.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Allocates the name manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Nm_Man_t * Nm_ManCreate( int nSize )
{
Nm_Man_t * p;
// allocate the table
p = ALLOC( Nm_Man_t, 1 );
memset( p, 0, sizeof(Nm_Man_t) );
// set the parameters
p->nSizeFactor = 3; // determined how much larger the table should be compared to data in it
p->nGrowthFactor = 3; // determined how much the table grows after resizing
// allocate and clean the bins
p->nBins = Cudd_PrimeNm(p->nSizeFactor*nSize);
p->pBinsI2N = ALLOC( Nm_Entry_t *, p->nBins );
p->pBinsN2I = ALLOC( Nm_Entry_t *, p->nBins );
memset( p->pBinsI2N, 0, sizeof(Nm_Entry_t *) * p->nBins );
memset( p->pBinsN2I, 0, sizeof(Nm_Entry_t *) * p->nBins );
// start the memory manager
p->pMem = Extra_MmFlexStart();
return p;
}
/**Function*************************************************************
Synopsis [Deallocates the name manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Nm_ManFree( Nm_Man_t * p )
{
Extra_MmFlexStop( p->pMem, 0 );
FREE( p->pBinsI2N );
FREE( p->pBinsN2I );
FREE( p );
}
/**Function*************************************************************
Synopsis [Returns the number of objects with names.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Nm_ManNumEntries( Nm_Man_t * p )
{
return p->nEntries;
}
/**Function*************************************************************
Synopsis [Creates a new entry in the name manager.]
Description [Returns 1 if the entry with the given object ID
already exists in the name manager.]
SideEffects []
SeeAlso []
***********************************************************************/
char * Nm_ManStoreIdName( Nm_Man_t * p, int ObjId, char * pName, char * pSuffix )
{
Nm_Entry_t * pEntry, * pEntry2;
int RetValue, nEntrySize;
if ( pEntry = Nm_ManTableLookupId(p, ObjId) )
{
if ( strcmp(pEntry->Name, pName) == 0 )
printf( "Nm_ManStoreIdName(): Entry with the same ID and name already exists.\n" );
else
printf( "Nm_ManStoreIdName(): Entry with the same ID and different name already exists.\n" );
return NULL;
}
if ( pSuffix == NULL && (pEntry = Nm_ManTableLookupName(p, pName, &pEntry2)) && pEntry2 )
{
printf( "Nm_ManStoreIdName(): Two entries with the same name already exist.\n" );
return NULL;
}
// create the entry
nEntrySize = sizeof(Nm_Entry_t) + strlen(pName) + (pSuffix?strlen(pSuffix):0) + 1;
nEntrySize = (nEntrySize / 4 + ((nEntrySize % 4) > 0)) * 4;
pEntry = (Nm_Entry_t *)Extra_MmFlexEntryFetch( p->pMem, nEntrySize );
pEntry->ObjId = ObjId;
sprintf( pEntry->Name, "%s%s", pName, pSuffix? pSuffix : "" );
// add the entry to the hash table
RetValue = Nm_ManTableAdd( p, pEntry );
assert( RetValue == 1 );
return pEntry->Name;
}
/**Function*************************************************************
Synopsis [Finds a unique name for the node.]
Description [If the name exists, tries appending numbers to it until
it becomes unique.]
SideEffects []
SeeAlso []
***********************************************************************/
char * Nm_ManCreateUniqueName( Nm_Man_t * p, int ObjId )
{
static char NameStr[1000];
Nm_Entry_t * pEntry;
int i;
if ( pEntry = Nm_ManTableLookupId(p, ObjId) )
return pEntry->Name;
sprintf( NameStr, "[%d]", ObjId );
for ( i = 1; Nm_ManTableLookupName(p, NameStr, NULL); i++ )
sprintf( NameStr, "[%d]_%d", ObjId, i );
return Nm_ManStoreIdName( p, ObjId, NameStr, NULL );
}
/**Function*************************************************************
Synopsis [Returns name of the object if the ID is known.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
char * Nm_ManFindNameById( Nm_Man_t * p, int ObjId )
{
Nm_Entry_t * pEntry;
if ( pEntry = Nm_ManTableLookupId(p, ObjId) )
return pEntry->Name;
return NULL;
}
/**Function*************************************************************
Synopsis [Returns ID of the object if its name is known.]
Description [This procedure may return two IDs because POs and latches
may have the same name (the only allowed case of name duplication).]
SideEffects []
SeeAlso []
***********************************************************************/
int Nm_ManFindIdByName( Nm_Man_t * p, char * pName, int * pSecond )
{
Nm_Entry_t * pEntry, * pEntry2;
if ( pEntry = Nm_ManTableLookupName(p, pName, &pEntry2) )
{
if ( pSecond )
*pSecond = pEntry2? pEntry2->ObjId : -1;
return pEntry->ObjId;
}
return -1;
}
/**Function*************************************************************
Synopsis [Prints distribution of entries in the bins.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Nm_ManPrintTables( Nm_Man_t * p )
{
int i, Counter;
// rehash the entries from the old table
Counter = 0;
printf( "Int2Name: " );
for ( i = 0; i < p->nBins; i++ )
{
if ( Counter == 0 && p->pBinsI2N[i] == NULL )
continue;
if ( p->pBinsI2N[i] )
Counter++;
else
{
printf( "%d ", Counter );
Counter = 0;
}
}
printf( "\n" );
// rehash the entries from the old table
Counter = 0;
printf( "Name2Int: " );
for ( i = 0; i < p->nBins; i++ )
{
if ( Counter == 0 && p->pBinsN2I[i] == NULL )
continue;
if ( p->pBinsN2I[i] )
Counter++;
else
{
printf( "%d ", Counter );
Counter = 0;
}
}
printf( "\n" );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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