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/**CFile****************************************************************
FileName [covMan.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Mapping into network of SOPs/ESOPs.]
Synopsis [Decomposition manager.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: covMan.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "cov.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Cov_Man_t * Cov_ManAlloc( Abc_Ntk_t * pNtk, int nFaninMax, int nCubesMax )
{
Cov_Man_t * pMan;
Cov_Obj_t * pMem;
Abc_Obj_t * pObj;
int i;
assert( pNtk->pManCut == NULL );
// start the manager
pMan = ABC_ALLOC( Cov_Man_t, 1 );
memset( pMan, 0, sizeof(Cov_Man_t) );
pMan->nFaninMax = nFaninMax;
pMan->nCubesMax = nCubesMax;
pMan->nWords = Abc_BitWordNum( nFaninMax * 2 );
// get the cubes
pMan->vComTo0 = Vec_IntAlloc( 2*nFaninMax );
pMan->vComTo1 = Vec_IntAlloc( 2*nFaninMax );
pMan->vPairs0 = Vec_IntAlloc( nFaninMax );
pMan->vPairs1 = Vec_IntAlloc( nFaninMax );
pMan->vTriv0 = Vec_IntAlloc( 1 ); Vec_IntPush( pMan->vTriv0, -1 );
pMan->vTriv1 = Vec_IntAlloc( 1 ); Vec_IntPush( pMan->vTriv1, -1 );
// allocate memory for object structures
pMan->pMemory = pMem = ABC_ALLOC( Cov_Obj_t, sizeof(Cov_Obj_t) * Abc_NtkObjNumMax(pNtk) );
memset( pMem, 0, sizeof(Cov_Obj_t) * Abc_NtkObjNumMax(pNtk) );
// allocate storage for the pointers to the memory
pMan->vObjStrs = Vec_PtrAlloc( Abc_NtkObjNumMax(pNtk) );
Vec_PtrFill( pMan->vObjStrs, Abc_NtkObjNumMax(pNtk), NULL );
Abc_NtkForEachObj( pNtk, pObj, i )
Vec_PtrWriteEntry( pMan->vObjStrs, i, pMem + i );
// create the cube manager
pMan->pManMin = Min_ManAlloc( nFaninMax );
return pMan;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Cov_ManFree( Cov_Man_t * p )
{
Vec_Int_t * vSupp;
int i;
for ( i = 0; i < p->vObjStrs->nSize; i++ )
{
vSupp = ((Cov_Obj_t *)p->vObjStrs->pArray[i])->vSupp;
if ( vSupp ) Vec_IntFree( vSupp );
}
Min_ManFree( p->pManMin );
Vec_PtrFree( p->vObjStrs );
Vec_IntFree( p->vFanCounts );
Vec_IntFree( p->vTriv0 );
Vec_IntFree( p->vTriv1 );
Vec_IntFree( p->vComTo0 );
Vec_IntFree( p->vComTo1 );
Vec_IntFree( p->vPairs0 );
Vec_IntFree( p->vPairs1 );
ABC_FREE( p->pMemory );
ABC_FREE( p );
}
/**Function*************************************************************
Synopsis [Drop the covers at the node.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NodeCovDropData( Cov_Man_t * p, Abc_Obj_t * pObj )
{
int nFanouts;
assert( p->vFanCounts );
nFanouts = Vec_IntEntry( p->vFanCounts, pObj->Id );
assert( nFanouts > 0 );
if ( --nFanouts == 0 )
{
Vec_IntFree( Abc_ObjGetSupp(pObj) );
Abc_ObjSetSupp( pObj, NULL );
Min_CoverRecycle( p->pManMin, Abc_ObjGetCover2(pObj) );
Abc_ObjSetCover2( pObj, NULL );
p->nSupps--;
}
Vec_IntWriteEntry( p->vFanCounts, pObj->Id, nFanouts );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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