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-rw-r--r--src/temp/esop/esopMem.c274
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diff --git a/src/temp/esop/esopMem.c b/src/temp/esop/esopMem.c
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--- a/src/temp/esop/esopMem.c
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-/**CFile****************************************************************
-
- FileName [esopMem.c]
-
- SystemName [ABC: Logic synthesis and verification system.]
-
- PackageName [Cover manipulation package.]
-
- Synopsis [Memory managers.]
-
- Author [Alan Mishchenko]
-
- Affiliation [UC Berkeley]
-
- Date [Ver. 1.0. Started - June 20, 2005.]
-
- Revision [$Id: esopMem.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
-
-***********************************************************************/
-
-#include "esop.h"
-
-////////////////////////////////////////////////////////////////////////
-/// DECLARATIONS ///
-////////////////////////////////////////////////////////////////////////
-
-struct Esop_MmFixed_t_
-{
- // information about individual entries
- int nEntrySize; // the size of one entry
- int nEntriesAlloc; // the total number of entries allocated
- int nEntriesUsed; // the number of entries in use
- int nEntriesMax; // the max number of entries in use
- char * pEntriesFree; // the linked list of free entries
-
- // this is where the memory is stored
- int nChunkSize; // the size of one chunk
- int nChunksAlloc; // the maximum number of memory chunks
- int nChunks; // the current number of memory chunks
- char ** pChunks; // the allocated memory
-
- // statistics
- int nMemoryUsed; // memory used in the allocated entries
- int nMemoryAlloc; // memory allocated
-};
-
-struct Esop_MmFlex_t_
-{
- // information about individual entries
- int nEntriesUsed; // the number of entries allocated
- char * pCurrent; // the current pointer to free memory
- char * pEnd; // the first entry outside the free memory
-
- // this is where the memory is stored
- int nChunkSize; // the size of one chunk
- int nChunksAlloc; // the maximum number of memory chunks
- int nChunks; // the current number of memory chunks
- char ** pChunks; // the allocated memory
-
- // statistics
- int nMemoryUsed; // memory used in the allocated entries
- int nMemoryAlloc; // memory allocated
-};
-
-struct Esop_MmStep_t_
-{
- int nMems; // the number of fixed memory managers employed
- Esop_MmFixed_t ** pMems; // memory managers: 2^1 words, 2^2 words, etc
- int nMapSize; // the size of the memory array
- Esop_MmFixed_t ** pMap; // maps the number of bytes into its memory manager
-};
-
-////////////////////////////////////////////////////////////////////////
-/// FUNCTION DEFINITIONS ///
-////////////////////////////////////////////////////////////////////////
-
-/**Function*************************************************************
-
- Synopsis [Allocates memory pieces of fixed size.]
-
- Description [The size of the chunk is computed as the minimum of
- 1024 entries and 64K. Can only work with entry size at least 4 byte long.]
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Esop_MmFixed_t * Esop_MmFixedStart( int nEntrySize )
-{
- Esop_MmFixed_t * p;
-
- p = ALLOC( Esop_MmFixed_t, 1 );
- memset( p, 0, sizeof(Esop_MmFixed_t) );
-
- p->nEntrySize = nEntrySize;
- p->nEntriesAlloc = 0;
- p->nEntriesUsed = 0;
- p->pEntriesFree = NULL;
-
- if ( nEntrySize * (1 << 10) < (1<<16) )
- p->nChunkSize = (1 << 10);
- else
- p->nChunkSize = (1<<16) / nEntrySize;
- if ( p->nChunkSize < 8 )
- p->nChunkSize = 8;
-
- p->nChunksAlloc = 64;
- p->nChunks = 0;
- p->pChunks = ALLOC( char *, p->nChunksAlloc );
-
- p->nMemoryUsed = 0;
- p->nMemoryAlloc = 0;
- return p;
-}
-
-/**Function*************************************************************
-
- Synopsis []
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Esop_MmFixedStop( Esop_MmFixed_t * p, int fVerbose )
-{
- int i;
- if ( p == NULL )
- return;
- if ( fVerbose )
- {
- printf( "Fixed memory manager: Entry = %5d. Chunk = %5d. Chunks used = %5d.\n",
- p->nEntrySize, p->nChunkSize, p->nChunks );
- printf( " Entries used = %8d. Entries peak = %8d. Memory used = %8d. Memory alloc = %8d.\n",
- p->nEntriesUsed, p->nEntriesMax, p->nEntrySize * p->nEntriesUsed, p->nMemoryAlloc );
- }
- for ( i = 0; i < p->nChunks; i++ )
- free( p->pChunks[i] );
- free( p->pChunks );
- free( p );
-}
-
-/**Function*************************************************************
-
- Synopsis []
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-char * Esop_MmFixedEntryFetch( Esop_MmFixed_t * p )
-{
- char * pTemp;
- int i;
-
- // check if there are still free entries
- if ( p->nEntriesUsed == p->nEntriesAlloc )
- { // need to allocate more entries
- assert( p->pEntriesFree == NULL );
- if ( p->nChunks == p->nChunksAlloc )
- {
- p->nChunksAlloc *= 2;
- p->pChunks = REALLOC( char *, p->pChunks, p->nChunksAlloc );
- }
- p->pEntriesFree = ALLOC( char, p->nEntrySize * p->nChunkSize );
- p->nMemoryAlloc += p->nEntrySize * p->nChunkSize;
- // transform these entries into a linked list
- pTemp = p->pEntriesFree;
- for ( i = 1; i < p->nChunkSize; i++ )
- {
- *((char **)pTemp) = pTemp + p->nEntrySize;
- pTemp += p->nEntrySize;
- }
- // set the last link
- *((char **)pTemp) = NULL;
- // add the chunk to the chunk storage
- p->pChunks[ p->nChunks++ ] = p->pEntriesFree;
- // add to the number of entries allocated
- p->nEntriesAlloc += p->nChunkSize;
- }
- // incrememt the counter of used entries
- p->nEntriesUsed++;
- if ( p->nEntriesMax < p->nEntriesUsed )
- p->nEntriesMax = p->nEntriesUsed;
- // return the first entry in the free entry list
- pTemp = p->pEntriesFree;
- p->pEntriesFree = *((char **)pTemp);
- return pTemp;
-}
-
-/**Function*************************************************************
-
- Synopsis []
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Esop_MmFixedEntryRecycle( Esop_MmFixed_t * p, char * pEntry )
-{
- // decrement the counter of used entries
- p->nEntriesUsed--;
- // add the entry to the linked list of free entries
- *((char **)pEntry) = p->pEntriesFree;
- p->pEntriesFree = pEntry;
-}
-
-/**Function*************************************************************
-
- Synopsis []
-
- Description [Relocates all the memory except the first chunk.]
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Esop_MmFixedRestart( Esop_MmFixed_t * p )
-{
- int i;
- char * pTemp;
-
- // deallocate all chunks except the first one
- for ( i = 1; i < p->nChunks; i++ )
- free( p->pChunks[i] );
- p->nChunks = 1;
- // transform these entries into a linked list
- pTemp = p->pChunks[0];
- for ( i = 1; i < p->nChunkSize; i++ )
- {
- *((char **)pTemp) = pTemp + p->nEntrySize;
- pTemp += p->nEntrySize;
- }
- // set the last link
- *((char **)pTemp) = NULL;
- // set the free entry list
- p->pEntriesFree = p->pChunks[0];
- // set the correct statistics
- p->nMemoryAlloc = p->nEntrySize * p->nChunkSize;
- p->nMemoryUsed = 0;
- p->nEntriesAlloc = p->nChunkSize;
- p->nEntriesUsed = 0;
-}
-
-/**Function*************************************************************
-
- Synopsis []
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-int Esop_MmFixedReadMemUsage( Esop_MmFixed_t * p )
-{
- return p->nMemoryAlloc;
-}
-
-
-////////////////////////////////////////////////////////////////////////
-/// END OF FILE ///
-////////////////////////////////////////////////////////////////////////