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/**CFile****************************************************************
FileName [vecSet.h]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [SAT solvers.]
Synopsis [Multi-page dynamic array.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: vecSet.h,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#ifndef ABC__sat__bsat__vecSet_h
#define ABC__sat__bsat__vecSet_h
////////////////////////////////////////////////////////////////////////
/// INCLUDES ///
////////////////////////////////////////////////////////////////////////
#include <stdio.h>
ABC_NAMESPACE_HEADER_START
////////////////////////////////////////////////////////////////////////
/// PARAMETERS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// BASIC TYPES ///
////////////////////////////////////////////////////////////////////////
// data-structure for logging entries
// memory is allocated in 2^nPageSize word-sized pages
// the first two 'words' of each page are used for bookkeeping
// the first 'word' of bookkeeping data stores the word limit
// the second 'word' of bookkeeping data stores the shadow word limit
// (the shadow word limit is only used during garbage collection)
typedef struct Vec_Set_t_ Vec_Set_t;
struct Vec_Set_t_
{
int nPageSize; // page size
unsigned uPageMask; // page mask
int nEntries; // entry count
int iPage; // current page
int iPageS; // shadow page
int nPagesAlloc; // page count allocated
word ** pPages; // page pointers
};
////////////////////////////////////////////////////////////////////////
/// MACRO DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
static inline int Vec_SetHandPage( Vec_Set_t * p, int h ) { return h >> p->nPageSize; }
static inline int Vec_SetHandShift( Vec_Set_t * p, int h ) { return h & p->uPageMask; }
static inline int Vec_SetWordNum( int nSize ) { return (nSize + 1) >> 1; }
//static inline word * Vec_SetEntry( Vec_Set_t * p, int h ) { assert(Vec_SetHandPage(p, h) >= 0 && Vec_SetHandPage(p, h) <= p->iPage); assert(Vec_SetHandShift(p, h) >= 2 && Vec_SetHandShift(p, h) < (1 << p->nPageSize)); return p->pPages[Vec_SetHandPage(p, h)] + Vec_SetHandShift(p, h); }
static inline word * Vec_SetEntry( Vec_Set_t * p, int h ) { return p->pPages[Vec_SetHandPage(p, h)] + Vec_SetHandShift(p, h); }
static inline int Vec_SetEntryNum( Vec_Set_t * p ) { return p->nEntries; }
static inline void Vec_SetWriteEntryNum( Vec_Set_t * p, int i){ p->nEntries = i; }
static inline int Vec_SetLimit( word * p ) { return p[0]; }
static inline int Vec_SetLimitS( word * p ) { return p[1]; }
static inline int Vec_SetIncLimit( word * p, int nWords ) { return p[0] += nWords; }
static inline int Vec_SetIncLimitS( word * p, int nWords ) { return p[1] += nWords; }
static inline void Vec_SetWriteLimit( word * p, int nWords ) { p[0] = nWords; }
static inline void Vec_SetWriteLimitS( word * p, int nWords ) { p[1] = nWords; }
static inline int Vec_SetHandCurrent( Vec_Set_t * p ) { return (p->iPage << p->nPageSize) + Vec_SetLimit(p->pPages[p->iPage]); }
static inline int Vec_SetHandCurrentS( Vec_Set_t * p ) { return (p->iPageS << p->nPageSize) + Vec_SetLimitS(p->pPages[p->iPageS]); }
static inline int Vec_SetHandMemory( Vec_Set_t * p, int h ) { return Vec_SetHandPage(p, h) * (1 << (p->nPageSize+3)) + Vec_SetHandShift(p, h) * 8; }
static inline int Vec_SetMemory( Vec_Set_t * p ) { return Vec_SetHandMemory(p, Vec_SetHandCurrent(p)); }
static inline int Vec_SetMemoryS( Vec_Set_t * p ) { return Vec_SetHandMemory(p, Vec_SetHandCurrentS(p)); }
static inline int Vec_SetMemoryAll( Vec_Set_t * p ) { return (p->iPage+1) * (1 << (p->nPageSize+3)); }
// Type is the Set type
// pVec is vector of set
// nSize should be given by the user
// pSet is the pointer to the set
// p (page) and s (shift) are variables used here
#define Vec_SetForEachEntry( Type, pVec, nSize, pSet, p, s ) \
for ( p = 0; p <= pVec->iPage; p++ ) \
for ( s = 2; s < Vec_SetLimit(pVec->pPages[p]) && ((pSet) = (Type)(pVec->pPages[p] + (s))); s += nSize )
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Allocating vector.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void Vec_SetAlloc_( Vec_Set_t * p, int nPageSize )
{
assert( nPageSize > 8 );
memset( p, 0, sizeof(Vec_Set_t) );
p->nPageSize = nPageSize;
p->uPageMask = (unsigned)((1 << nPageSize) - 1);
p->nPagesAlloc = 256;
p->pPages = ABC_CALLOC( word *, p->nPagesAlloc );
p->pPages[0] = ABC_ALLOC( word, (1 << p->nPageSize) );
p->pPages[0][0] = ~0;
p->pPages[0][1] = ~0;
Vec_SetWriteLimit( p->pPages[0], 2 );
}
static inline Vec_Set_t * Vec_SetAlloc( int nPageSize )
{
Vec_Set_t * p;
p = ABC_CALLOC( Vec_Set_t, 1 );
Vec_SetAlloc_( p, nPageSize );
return p;
}
/**Function*************************************************************
Synopsis [Resetting vector.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void Vec_SetRestart( Vec_Set_t * p )
{
p->nEntries = 0;
p->iPage = 0;
p->iPageS = 0;
p->pPages[0][0] = ~0;
p->pPages[0][1] = ~0;
Vec_SetWriteLimit( p->pPages[0], 2 );
}
/**Function*************************************************************
Synopsis [Freeing vector.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void Vec_SetFree_( Vec_Set_t * p )
{
int i;
if ( p == NULL ) return;
for ( i = 0; i < p->nPagesAlloc; i++ )
ABC_FREE( p->pPages[i] );
ABC_FREE( p->pPages );
}
static inline void Vec_SetFree( Vec_Set_t * p )
{
if ( p == NULL ) return;
Vec_SetFree_( p );
ABC_FREE( p );
}
/**Function*************************************************************
Synopsis [Returns memory in bytes occupied by the vector.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline double Vec_ReportMemory( Vec_Set_t * p )
{
double Mem = sizeof(Vec_Set_t);
Mem += p->nPagesAlloc * sizeof(void *);
Mem += sizeof(word) * (1 << p->nPageSize) * (1 + p->iPage);
return Mem;
}
/**Function*************************************************************
Synopsis [Appending entries to vector.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Vec_SetAppend( Vec_Set_t * p, int * pArray, int nSize )
{
int nWords = Vec_SetWordNum( nSize );
assert( nWords < (1 << p->nPageSize) );
p->nEntries++;
if ( Vec_SetLimit( p->pPages[p->iPage] ) + nWords >= (1 << p->nPageSize) )
{
if ( ++p->iPage == p->nPagesAlloc )
{
p->pPages = ABC_REALLOC( word *, p->pPages, p->nPagesAlloc * 2 );
memset( p->pPages + p->nPagesAlloc, 0, sizeof(word *) * p->nPagesAlloc );
p->nPagesAlloc *= 2;
}
if ( p->pPages[p->iPage] == NULL )
p->pPages[p->iPage] = ABC_ALLOC( word, (1 << p->nPageSize) );
Vec_SetWriteLimit( p->pPages[p->iPage], 2 );
p->pPages[p->iPage][1] = ~0;
}
if ( pArray )
memcpy( p->pPages[p->iPage] + Vec_SetLimit(p->pPages[p->iPage]), pArray, sizeof(int) * nSize );
Vec_SetIncLimit( p->pPages[p->iPage], nWords );
return Vec_SetHandCurrent(p) - nWords;
}
static inline int Vec_SetAppendS( Vec_Set_t * p, int nSize )
{
int nWords = Vec_SetWordNum( nSize );
assert( nWords < (1 << p->nPageSize) );
if ( Vec_SetLimitS( p->pPages[p->iPageS] ) + nWords >= (1 << p->nPageSize) )
Vec_SetWriteLimitS( p->pPages[++p->iPageS], 2 );
Vec_SetIncLimitS( p->pPages[p->iPageS], nWords );
return Vec_SetHandCurrentS(p) - nWords;
}
static inline int Vec_SetFetchH( Vec_Set_t * p, int nBytes )
{
return Vec_SetAppend(p, NULL, (nBytes + 3) >> 2);
}
static inline void * Vec_SetFetch( Vec_Set_t * p, int nBytes )
{
return (void *)Vec_SetEntry( p, Vec_SetFetchH(p, nBytes) );
}
static inline char * Vec_SetStrsav( Vec_Set_t * p, char * pName )
{
char * pStr = (char *)Vec_SetFetch( p, strlen(pName) + 1 );
strcpy( pStr, pName );
return pStr;
}
/**Function*************************************************************
Synopsis [Shrinking vector size.]
Description []
SideEffects [This procedure does not update the number of entries.]
SeeAlso []
***********************************************************************/
static inline void Vec_SetShrink( Vec_Set_t * p, int h )
{
assert( h <= Vec_SetHandCurrent(p) );
p->iPage = Vec_SetHandPage(p, h);
Vec_SetWriteLimit( p->pPages[p->iPage], Vec_SetHandShift(p, h) );
}
static inline void Vec_SetShrinkS( Vec_Set_t * p, int h )
{
assert( h <= Vec_SetHandCurrent(p) );
p->iPageS = Vec_SetHandPage(p, h);
Vec_SetWriteLimitS( p->pPages[p->iPageS], Vec_SetHandShift(p, h) );
}
static inline void Vec_SetShrinkLimits( Vec_Set_t * p )
{
int i;
for ( i = 0; i <= p->iPage; i++ )
Vec_SetWriteLimit( p->pPages[i], Vec_SetLimitS(p->pPages[i]) );
}
ABC_NAMESPACE_HEADER_END
#endif
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
|
