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/**CFile****************************************************************
FileName [xsatMemory.h]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [xSAT - A SAT solver written in C.
Read the license file for more info.]
Synopsis [Memory management implementation.]
Author [Bruno Schmitt <boschmitt@inf.ufrgs.br>]
Affiliation [UC Berkeley / UFRGS]
Date [Ver. 1.0. Started - November 10, 2016.]
Revision []
***********************************************************************/
#ifndef ABC__sat__xSAT__xsatMemory_h
#define ABC__sat__xSAT__xsatMemory_h
////////////////////////////////////////////////////////////////////////
/// INCLUDES ///
////////////////////////////////////////////////////////////////////////
#include "misc/util/abc_global.h"
#include "xsatClause.h"
ABC_NAMESPACE_HEADER_START
////////////////////////////////////////////////////////////////////////
/// STRUCTURE DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
typedef struct xSAT_Mem_t_ xSAT_Mem_t;
struct xSAT_Mem_t_
{
unsigned nSize;
unsigned nCap;
unsigned nWasted;
unsigned * pData;
};
////////////////////////////////////////////////////////////////////////
/// FUNCTION DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline xSAT_Clause_t * xSAT_MemClauseHand( xSAT_Mem_t * p, int h )
{
return h != 0xFFFFFFFF ? ( xSAT_Clause_t * )( p->pData + h ) : NULL;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void xSAT_MemGrow( xSAT_Mem_t * p, unsigned nCap )
{
unsigned nPrevCap = p->nCap;
if ( p->nCap >= nCap )
return;
while (p->nCap < nCap)
{
unsigned delta = ( ( p->nCap >> 1 ) + ( p->nCap >> 3 ) + 2 ) & ~1;
p->nCap += delta;
assert(p->nCap >= nPrevCap);
}
assert(p->nCap > 0);
p->pData = ABC_REALLOC( unsigned, p->pData, p->nCap );
}
/**Function*************************************************************
Synopsis [Allocating vector.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline xSAT_Mem_t * xSAT_MemAlloc( int nCap )
{
xSAT_Mem_t * p;
p = ABC_CALLOC( xSAT_Mem_t, 1 );
if (nCap <= 0)
nCap = 1024*1024;
xSAT_MemGrow(p, nCap);
return p;
}
/**Function*************************************************************
Synopsis [Resetting vector.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void xSAT_MemRestart( xSAT_Mem_t * p )
{
p->nSize = 0;
p->nWasted = 0;
}
/**Function*************************************************************
Synopsis [Freeing vector.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void xSAT_MemFree( xSAT_Mem_t * p )
{
ABC_FREE( p->pData );
ABC_FREE( p );
}
/**Function*************************************************************
Synopsis [Creates new clause.]
Description [The resulting clause is fully initialized.]
SideEffects []
SeeAlso []
***********************************************************************/
static inline unsigned xSAT_MemAppend( xSAT_Mem_t * p, int nSize )
{
unsigned nPrevSize;
assert(nSize > 0);
xSAT_MemGrow( p, p->nSize + nSize );
nPrevSize = p->nSize;
p->nSize += nSize;
assert(p->nSize > nPrevSize);
return nPrevSize;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline unsigned xSAT_MemCRef( xSAT_Mem_t * p, unsigned * pC )
{
return ( unsigned )( pC - &(p->pData[0]) );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline unsigned xSAT_MemCap( xSAT_Mem_t * p )
{
return p->nCap;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline unsigned xSAT_MemWastedCap( xSAT_Mem_t * p )
{
return p->nWasted;
}
ABC_NAMESPACE_HEADER_END
#endif
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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