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|
/*******************************************************/
/* "C" Language Integrated Production System */
/* */
/* CLIPS Version 6.30 08/16/14 */
/* */
/* EXPRESSION BSAVE/BLOAD MODULE */
/*******************************************************/
/*************************************************************/
/* Purpose: Implements the binary save/load feature for the */
/* expression data structure. */
/* */
/* Principal Programmer(s): */
/* Gary D. Riley */
/* */
/* Contributing Programmer(s): */
/* Brian L. Dantes */
/* */
/* Revision History: */
/* */
/* 6.30: Changed integer type/precision. */
/* */
/*************************************************************/
#define _EXPRNBIN_SOURCE_
#include "setup.h"
#if (BLOAD || BLOAD_ONLY || BLOAD_AND_BSAVE)
#include <stdio.h>
#define _STDIO_INCLUDED_
#include "memalloc.h"
#include "dffctdef.h"
#include "moduldef.h"
#include "constrct.h"
#include "extnfunc.h"
#include "bload.h"
#include "bsave.h"
#include "envrnmnt.h"
#if DEFRULE_CONSTRUCT
#include "network.h"
#endif
#if DEFGENERIC_CONSTRUCT
#include "genrcbin.h"
#endif
#if DEFFUNCTION_CONSTRUCT
#include "dffnxbin.h"
#endif
#if DEFTEMPLATE_CONSTRUCT
#include "tmpltbin.h"
#endif
#if DEFGLOBAL_CONSTRUCT
#include "globlbin.h"
#endif
#if OBJECT_SYSTEM
#include "objbin.h"
#include "insfun.h"
#include "inscom.h"
#endif
#include "exprnbin.h"
/***************************************/
/* LOCAL INTERNAL FUNCTION DEFINITIONS */
/***************************************/
static void UpdateExpression(void *,void *,long);
/***********************************************************/
/* AllocateExpressions: Determines the amount of space */
/* required for loading the binary image of expressions */
/* and allocates that amount of space. */
/***********************************************************/
globle void AllocateExpressions(
void *theEnv)
{
size_t space;
GenReadBinary(theEnv,(void *) &ExpressionData(theEnv)->NumberOfExpressions,sizeof(long));
if (ExpressionData(theEnv)->NumberOfExpressions == 0L)
ExpressionData(theEnv)->ExpressionArray = NULL;
else
{
space = ExpressionData(theEnv)->NumberOfExpressions * sizeof(struct expr);
ExpressionData(theEnv)->ExpressionArray = (struct expr *) genalloc(theEnv,space);
}
}
/**********************************************/
/* RefreshExpressions: Refreshes the pointers */
/* used by the expression binary image. */
/**********************************************/
globle void RefreshExpressions(
void *theEnv)
{
if (ExpressionData(theEnv)->ExpressionArray == NULL) return;
BloadandRefresh(theEnv,ExpressionData(theEnv)->NumberOfExpressions,
(unsigned) sizeof(BSAVE_EXPRESSION),UpdateExpression);
}
/*********************************************************
NAME : UpdateExpression
DESCRIPTION : Given a bloaded expression buffer,
this routine refreshes the pointers
in the expression array
INPUTS : 1) a bloaded expression buffer
2) the index of the expression to refresh
RETURNS : Nothing useful
SIDE EFFECTS : Expression updated
NOTES : None
*********************************************************/
static void UpdateExpression(
void *theEnv,
void *buf,
long obji)
{
BSAVE_EXPRESSION *bexp;
long theIndex;
bexp = (BSAVE_EXPRESSION *) buf;
ExpressionData(theEnv)->ExpressionArray[obji].type = bexp->type;
switch(bexp->type)
{
case FCALL:
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) BloadData(theEnv)->FunctionArray[bexp->value];
break;
case GCALL:
#if DEFGENERIC_CONSTRUCT
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) GenericPointer(bexp->value);
#else
ExpressionData(theEnv)->ExpressionArray[obji].value = NULL;
#endif
break;
case PCALL:
#if DEFFUNCTION_CONSTRUCT
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) DeffunctionPointer(bexp->value);
#else
ExpressionData(theEnv)->ExpressionArray[obji].value = NULL;
#endif
break;
case DEFTEMPLATE_PTR:
#if DEFTEMPLATE_CONSTRUCT
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) DeftemplatePointer(bexp->value);
#else
ExpressionData(theEnv)->ExpressionArray[obji].value = NULL;
#endif
break;
case DEFCLASS_PTR:
#if OBJECT_SYSTEM
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) DefclassPointer(bexp->value);
#else
ExpressionData(theEnv)->ExpressionArray[obji].value = NULL;
#endif
break;
case DEFGLOBAL_PTR:
#if DEFGLOBAL_CONSTRUCT
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) DefglobalPointer(bexp->value);
#else
ExpressionData(theEnv)->ExpressionArray[obji].value = NULL;
#endif
break;
case INTEGER:
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) SymbolData(theEnv)->IntegerArray[bexp->value];
IncrementIntegerCount((INTEGER_HN *) ExpressionData(theEnv)->ExpressionArray[obji].value);
break;
case FLOAT:
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) SymbolData(theEnv)->FloatArray[bexp->value];
IncrementFloatCount((FLOAT_HN *) ExpressionData(theEnv)->ExpressionArray[obji].value);
break;
case INSTANCE_NAME:
#if ! OBJECT_SYSTEM
ExpressionData(theEnv)->ExpressionArray[obji].type = SYMBOL;
#endif
case GBL_VARIABLE:
case SYMBOL:
case STRING:
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) SymbolData(theEnv)->SymbolArray[bexp->value];
IncrementSymbolCount((SYMBOL_HN *) ExpressionData(theEnv)->ExpressionArray[obji].value);
break;
#if DEFTEMPLATE_CONSTRUCT
case FACT_ADDRESS:
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) &FactData(theEnv)->DummyFact;
EnvIncrementFactCount(theEnv,ExpressionData(theEnv)->ExpressionArray[obji].value);
break;
#endif
#if OBJECT_SYSTEM
case INSTANCE_ADDRESS:
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) &InstanceData(theEnv)->DummyInstance;
EnvIncrementInstanceCount(theEnv,ExpressionData(theEnv)->ExpressionArray[obji].value);
break;
#endif
case EXTERNAL_ADDRESS:
ExpressionData(theEnv)->ExpressionArray[obji].value = NULL;
break;
case RVOID:
break;
default:
if (EvaluationData(theEnv)->PrimitivesArray[bexp->type] == NULL) break;
if (EvaluationData(theEnv)->PrimitivesArray[bexp->type]->bitMap)
{
ExpressionData(theEnv)->ExpressionArray[obji].value = (void *) SymbolData(theEnv)->BitMapArray[bexp->value];
IncrementBitMapCount((BITMAP_HN *) ExpressionData(theEnv)->ExpressionArray[obji].value);
}
break;
}
theIndex = (long int) bexp->nextArg;
if (theIndex == -1L)
{ ExpressionData(theEnv)->ExpressionArray[obji].nextArg = NULL; }
else
{ ExpressionData(theEnv)->ExpressionArray[obji].nextArg = (struct expr *) &ExpressionData(theEnv)->ExpressionArray[theIndex]; }
theIndex = (long int) bexp->argList;
if (theIndex == -1L)
{ ExpressionData(theEnv)->ExpressionArray[obji].argList = NULL; }
else
{ ExpressionData(theEnv)->ExpressionArray[obji].argList = (struct expr *) &ExpressionData(theEnv)->ExpressionArray[theIndex]; }
}
/*********************************************/
/* ClearBloadedExpressions: Clears the space */
/* utilized by an expression binary image. */
/*********************************************/
globle void ClearBloadedExpressions(
void *theEnv)
{
unsigned long int i;
size_t space;
/*===============================================*/
/* Update the busy counts of atomic data values. */
/*===============================================*/
for (i = 0; i < (unsigned long) ExpressionData(theEnv)->NumberOfExpressions; i++)
{
switch (ExpressionData(theEnv)->ExpressionArray[i].type)
{
case SYMBOL :
case STRING :
case INSTANCE_NAME :
case GBL_VARIABLE :
DecrementSymbolCount(theEnv,(SYMBOL_HN *) ExpressionData(theEnv)->ExpressionArray[i].value);
break;
case FLOAT :
DecrementFloatCount(theEnv,(FLOAT_HN *) ExpressionData(theEnv)->ExpressionArray[i].value);
break;
case INTEGER :
DecrementIntegerCount(theEnv,(INTEGER_HN *) ExpressionData(theEnv)->ExpressionArray[i].value);
break;
#if DEFTEMPLATE_CONSTRUCT
case FACT_ADDRESS :
EnvDecrementFactCount(theEnv,ExpressionData(theEnv)->ExpressionArray[i].value);
break;
#endif
#if OBJECT_SYSTEM
case INSTANCE_ADDRESS :
EnvDecrementInstanceCount(theEnv,ExpressionData(theEnv)->ExpressionArray[i].value);
break;
#endif
case RVOID:
break;
default:
if (EvaluationData(theEnv)->PrimitivesArray[ExpressionData(theEnv)->ExpressionArray[i].type] == NULL) break;
if (EvaluationData(theEnv)->PrimitivesArray[ExpressionData(theEnv)->ExpressionArray[i].type]->bitMap)
{ DecrementBitMapCount(theEnv,(BITMAP_HN *) ExpressionData(theEnv)->ExpressionArray[i].value); }
break;
}
}
/*===================================*/
/* Free the binary expression array. */
/*===================================*/
space = ExpressionData(theEnv)->NumberOfExpressions * sizeof(struct expr);
if (space != 0) genfree(theEnv,(void *) ExpressionData(theEnv)->ExpressionArray,space);
ExpressionData(theEnv)->ExpressionArray = 0;
}
#if BLOAD_AND_BSAVE
/***************************************************
NAME : FindHashedExpressions
DESCRIPTION : Sets the bsave expression array
indices for hashed expression nodes
and marks the items needed by
these expressions
INPUTS : None
RETURNS : Nothing useful
SIDE EFFECTS : Atoms marked and ids set
NOTES : None
***************************************************/
globle void FindHashedExpressions(
void *theEnv)
{
register unsigned i;
EXPRESSION_HN *exphash;
for (i = 0 ; i < EXPRESSION_HASH_SIZE ; i++)
for (exphash = ExpressionData(theEnv)->ExpressionHashTable[i] ; exphash != NULL ; exphash = exphash->next)
{
MarkNeededItems(theEnv,exphash->exp);
exphash->bsaveID = ExpressionData(theEnv)->ExpressionCount;
ExpressionData(theEnv)->ExpressionCount += ExpressionSize(exphash->exp);
}
}
/***************************************************
NAME : BsaveHashedExpressions
DESCRIPTION : Writes out hashed expressions
INPUTS : Bsave file stream pointer
RETURNS : Nothing useful
SIDE EFFECTS : Expressions written
NOTES : None
***************************************************/
globle void BsaveHashedExpressions(
void *theEnv,
FILE *fp)
{
register unsigned i;
EXPRESSION_HN *exphash;
for (i = 0 ; i < EXPRESSION_HASH_SIZE ; i++)
for (exphash = ExpressionData(theEnv)->ExpressionHashTable[i] ; exphash != NULL ; exphash = exphash->next)
BsaveExpression(theEnv,exphash->exp,fp);
}
/***************************************************************/
/* BsaveConstructExpressions: Writes all expression needed by */
/* constructs for this binary image to the binary save file. */
/***************************************************************/
globle void BsaveConstructExpressions(
void *theEnv,
FILE *fp)
{
struct BinaryItem *biPtr;
for (biPtr = BsaveData(theEnv)->ListOfBinaryItems;
biPtr != NULL;
biPtr = biPtr->next)
{
if (biPtr->expressionFunction != NULL)
{ (*biPtr->expressionFunction)(theEnv,fp); }
}
}
/***************************************/
/* BsaveExpression: Recursively saves */
/* an expression to the binary file. */
/***************************************/
globle void BsaveExpression(
void *theEnv,
struct expr *testPtr,
FILE *fp)
{
BSAVE_EXPRESSION newTest;
long int newIndex;
while (testPtr != NULL)
{
ExpressionData(theEnv)->ExpressionCount++;
/*================*/
/* Copy the type. */
/*================*/
newTest.type = testPtr->type;
/*=======================================*/
/* Convert the argList slot to an index. */
/*=======================================*/
if (testPtr->argList == NULL)
{ newTest.argList = -1L; }
else
{ newTest.argList = ExpressionData(theEnv)->ExpressionCount; }
/*========================================*/
/* Convert the nextArg slot to an index. */
/*========================================*/
if (testPtr->nextArg == NULL)
{ newTest.nextArg = -1L; }
else
{
newIndex = ExpressionData(theEnv)->ExpressionCount + ExpressionSize(testPtr->argList);
newTest.nextArg = newIndex;
}
/*=========================*/
/* Convert the value slot. */
/*=========================*/
switch(testPtr->type)
{
case FLOAT:
newTest.value = (long) ((FLOAT_HN *) testPtr->value)->bucket;
break;
case INTEGER:
newTest.value = (long) ((INTEGER_HN *) testPtr->value)->bucket;
break;
case FCALL:
newTest.value = (long) ((struct FunctionDefinition *)
testPtr->value)->bsaveIndex;
break;
case GCALL:
#if DEFGENERIC_CONSTRUCT
if (testPtr->value != NULL)
newTest.value = ((struct constructHeader *) testPtr->value)->bsaveID;
else
#endif
newTest.value = -1L;
break;
case PCALL:
#if DEFFUNCTION_CONSTRUCT
if (testPtr->value != NULL)
newTest.value = ((struct constructHeader *) testPtr->value)->bsaveID;
else
#endif
newTest.value = -1L;
break;
case DEFTEMPLATE_PTR:
#if DEFTEMPLATE_CONSTRUCT
if (testPtr->value != NULL)
newTest.value = ((struct constructHeader *) testPtr->value)->bsaveID;
else
#endif
newTest.value = -1L;
break;
case DEFCLASS_PTR:
#if OBJECT_SYSTEM
if (testPtr->value != NULL)
newTest.value = ((struct constructHeader *) testPtr->value)->bsaveID;
else
#endif
newTest.value = -1L;
break;
case DEFGLOBAL_PTR:
#if DEFGLOBAL_CONSTRUCT
if (testPtr->value != NULL)
newTest.value = ((struct defglobal *) testPtr->value)->header.bsaveID;
else
#endif
newTest.value = -1L;
break;
#if OBJECT_SYSTEM
case INSTANCE_NAME:
#endif
case SYMBOL:
case GBL_VARIABLE:
case STRING:
newTest.value = (long) ((SYMBOL_HN *) testPtr->value)->bucket;
break;
case FACT_ADDRESS:
case INSTANCE_ADDRESS:
case EXTERNAL_ADDRESS:
newTest.value = -1L;
break;
case RVOID:
break;
default:
if (EvaluationData(theEnv)->PrimitivesArray[testPtr->type] == NULL) break;
if (EvaluationData(theEnv)->PrimitivesArray[testPtr->type]->bitMap)
{ newTest.value = (long) ((BITMAP_HN *) testPtr->value)->bucket; }
break;
}
/*===========================*/
/* Write out the expression. */
/*===========================*/
GenWrite(&newTest,(unsigned long) sizeof(BSAVE_EXPRESSION),fp);
/*==========================*/
/* Write out argument list. */
/*==========================*/
if (testPtr->argList != NULL)
{
BsaveExpression(theEnv,testPtr->argList,fp);
}
testPtr = testPtr->nextArg;
}
}
#endif /* BLOAD_AND_BSAVE */
#endif /* (BLOAD || BLOAD_ONLY || BLOAD_AND_BSAVE) */
|
