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modulbin.c
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modulbin.c
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/*******************************************************/
/* "C" Language Integrated Production System */
/* */
/* CLIPS Version 6.21 06/15/03 */
/* */
/* DEFMODULE BSAVE/BLOAD MODULE */
/*******************************************************/
/*************************************************************/
/* Purpose: Implements the binary save/load feature for the */
/* defmodule construct. */
/* */
/* Principal Programmer(s): */
/* Gary D. Riley */
/* */
/* Contributing Programmer(s): */
/* Brian L. Dantes */
/* */
/* Revision History: */
/* */
/*************************************************************/
#define _MODULBIN_SOURCE_
#include "setup.h"
#if (BLOAD || BLOAD_ONLY || BLOAD_AND_BSAVE) && (! RUN_TIME)
#include <stdio.h>
#define _STDIO_INCLUDED_
#include "memalloc.h"
#include "constrct.h"
#include "moduldef.h"
#include "bload.h"
#include "bsave.h"
#include "envrnmnt.h"
#include "modulbin.h"
/***************************************/
/* LOCAL INTERNAL FUNCTION DEFINITIONS */
/***************************************/
#if BLOAD_AND_BSAVE
static void BsaveFind(void *);
static void BsaveStorage(void *,FILE *);
static void BsaveBinaryItem(void *,FILE *);
#endif
static void BloadStorage(void *);
static void BloadBinaryItem(void *);
static void UpdateDefmodule(void *,void *,long);
static void UpdatePortItem(void *,void *,long);
static void ClearBload(void *);
/*********************************************/
/* DefmoduleBinarySetup: Installs the binary */
/* save/load feature for defmodules. */
/*********************************************/
globle void DefmoduleBinarySetup(
void *theEnv)
{
AddBeforeBloadFunction(theEnv,"defmodule",RemoveAllDefmodules,2000);
#if BLOAD_AND_BSAVE
AddBinaryItem(theEnv,"defmodule",0,BsaveFind,NULL,
BsaveStorage,BsaveBinaryItem,
BloadStorage,BloadBinaryItem,
ClearBload);
#endif
AddAbortBloadFunction(theEnv,"defmodule",CreateMainModule,0);
#if (BLOAD || BLOAD_ONLY)
AddBinaryItem(theEnv,"defmodule",0,NULL,NULL,NULL,NULL,
BloadStorage,BloadBinaryItem,
ClearBload);
#endif
}
/**************************************************************/
/* UpdateDefmoduleItemHeader: Updates the values in defmodule */
/* item headers for the loaded binary image. */
/**************************************************************/
globle void UpdateDefmoduleItemHeader(
void *theEnv,
struct bsaveDefmoduleItemHeader *theBsaveHeader,
struct defmoduleItemHeader *theHeader,
int itemSize,
void *itemArray)
{
long firstOffset,lastOffset;
theHeader->theModule = ModulePointer(theBsaveHeader->theModule);
if (theBsaveHeader->firstItem == -1L)
{
theHeader->firstItem = NULL;
theHeader->lastItem = NULL;
}
else
{
firstOffset = itemSize * theBsaveHeader->firstItem;
lastOffset = itemSize * theBsaveHeader->lastItem;
theHeader->firstItem =
(struct constructHeader *) &((char *) itemArray)[firstOffset];
theHeader->lastItem =
(struct constructHeader *) &((char *) itemArray)[lastOffset];
}
}
#if BLOAD_AND_BSAVE
/*********************************************************/
/* AssignBsaveDefmdlItemHdrVals: Assigns the appropriate */
/* values to a bsave defmodule item header record. */
/*********************************************************/
globle void AssignBsaveDefmdlItemHdrVals(
struct bsaveDefmoduleItemHeader *theBsaveHeader,
struct defmoduleItemHeader *theHeader)
{
theBsaveHeader->theModule = theHeader->theModule->bsaveID;
if (theHeader->firstItem == NULL)
{
theBsaveHeader->firstItem = -1L;
theBsaveHeader->lastItem = -1L;
}
else
{
theBsaveHeader->firstItem = theHeader->firstItem->bsaveID;
theBsaveHeader->lastItem = theHeader->lastItem->bsaveID;
}
}
/**********************************************************/
/* BsaveFind: Counts the number of data structures which */
/* must be saved in the binary image for the defmodules */
/* in the current environment. */
/**********************************************************/
static void BsaveFind(
void *theEnv)
{
struct defmodule *defmodulePtr;
struct portItem *theList;
/*=======================================================*/
/* If a binary image is already loaded, then temporarily */
/* save the count values since these will be overwritten */
/* in the process of saving the binary image. */
/*=======================================================*/
SaveBloadCount(theEnv,DefmoduleData(theEnv)->BNumberOfDefmodules);
SaveBloadCount(theEnv,DefmoduleData(theEnv)->NumberOfPortItems);
/*==========================================*/
/* Set the count of defmodule and defmodule */
/* port items data structures to zero. */
/*==========================================*/
DefmoduleData(theEnv)->BNumberOfDefmodules = 0;
DefmoduleData(theEnv)->NumberOfPortItems = 0;
/*===========================*/
/* Loop through each module. */
/*===========================*/
for (defmodulePtr = (struct defmodule *) EnvGetNextDefmodule(theEnv,NULL);
defmodulePtr != NULL;
defmodulePtr = (struct defmodule *) EnvGetNextDefmodule(theEnv,defmodulePtr))
{
/*==============================================*/
/* Increment the number of modules encountered. */
/*==============================================*/
DefmoduleData(theEnv)->BNumberOfDefmodules++;
/*===========================*/
/* Mark the defmodule's name */
/* as being a needed symbol. */
/*===========================*/
defmodulePtr->name->neededSymbol = TRUE;
/*==============================================*/
/* Loop through each of the port items in the */
/* defmodule's import list incrementing the */
/* number of port items encountered and marking */
/* needed symbols. */
/*==============================================*/
for (theList = defmodulePtr->importList;
theList != NULL;
theList = theList->next)
{
DefmoduleData(theEnv)->NumberOfPortItems++;
if (theList->moduleName != NULL)
{ theList->moduleName->neededSymbol = TRUE; }
if (theList->constructType != NULL)
{ theList->constructType->neededSymbol = TRUE; }
if (theList->constructName != NULL)
{ theList->constructName->neededSymbol = TRUE; }
}
/*==============================================*/
/* Loop through each of the port items in the */
/* defmodule's export list incrementing the */
/* number of port items encountered and marking */
/* needed symbols. */
/*==============================================*/
for (theList = defmodulePtr->exportList;
theList != NULL;
theList = theList->next)
{
DefmoduleData(theEnv)->NumberOfPortItems++;
if (theList->moduleName != NULL)
{ theList->moduleName->neededSymbol = TRUE; }
if (theList->constructType != NULL)
{ theList->constructType->neededSymbol = TRUE; }
if (theList->constructName != NULL)
{ theList->constructName->neededSymbol = TRUE; }
}
}
}
/*********************************************************/
/* BsaveStorage: Writes out the storage requirements for */
/* all defmodule structures to the binary file. */
/*********************************************************/
static void BsaveStorage(
void *theEnv,
FILE *fp)
{
size_t space;
space = sizeof(long) * 2;
GenWrite(&space,sizeof(size_t),fp);
GenWrite(&DefmoduleData(theEnv)->BNumberOfDefmodules,sizeof(long int),fp);
GenWrite(&DefmoduleData(theEnv)->NumberOfPortItems,sizeof(long int),fp);
}
/*********************************************/
/* BsaveBinaryItem: Writes out all defmodule */
/* structures to the binary file. */
/*********************************************/
static void BsaveBinaryItem(
void *theEnv,
FILE *fp)
{
size_t space;
struct defmodule *defmodulePtr;
struct bsaveDefmodule newDefmodule;
struct bsavePortItem newPortItem;
struct portItem *theList;
/*=========================================================*/
/* Write out the amount of space taken up by the defmodule */
/* and port item data structures in the binary image. */
/*=========================================================*/
space = DefmoduleData(theEnv)->BNumberOfDefmodules * sizeof(struct bsaveDefmodule);
space += DefmoduleData(theEnv)->NumberOfPortItems * sizeof(struct bsavePortItem);
GenWrite(&space,sizeof(size_t),fp);
/*==========================================*/
/* Write out each defmodule data structure. */
/*==========================================*/
DefmoduleData(theEnv)->BNumberOfDefmodules = 0;
DefmoduleData(theEnv)->NumberOfPortItems = 0;
for (defmodulePtr = (struct defmodule *) EnvGetNextDefmodule(theEnv,NULL);
defmodulePtr != NULL;
defmodulePtr = (struct defmodule *) EnvGetNextDefmodule(theEnv,defmodulePtr))
{
newDefmodule.name = defmodulePtr->name->bucket;
DefmoduleData(theEnv)->BNumberOfDefmodules++;
if (defmodulePtr->next != NULL)
{ newDefmodule.next = DefmoduleData(theEnv)->BNumberOfDefmodules; }
else
{ newDefmodule.next = -1L; }
if (defmodulePtr->importList == NULL)
{ newDefmodule.importList = -1L; }
else
{
newDefmodule.importList = DefmoduleData(theEnv)->NumberOfPortItems;
for (theList = defmodulePtr->importList;
theList != NULL;
theList = theList->next)
{ DefmoduleData(theEnv)->NumberOfPortItems++; }
}
if (defmodulePtr->exportList == NULL)
{ newDefmodule.exportList = -1L; }
else
{
newDefmodule.exportList = DefmoduleData(theEnv)->NumberOfPortItems;
for (theList = defmodulePtr->exportList;
theList != NULL;
theList = theList->next)
{ DefmoduleData(theEnv)->NumberOfPortItems++; }
}
newDefmodule.bsaveID = defmodulePtr->bsaveID;
GenWrite(&newDefmodule,sizeof(struct bsaveDefmodule),fp);
}
/*==========================================*/
/* Write out each port item data structure. */
/*==========================================*/
DefmoduleData(theEnv)->NumberOfPortItems = 0;
defmodulePtr = (struct defmodule *) EnvGetNextDefmodule(theEnv,NULL);
while (defmodulePtr != NULL)
{
for (theList = defmodulePtr->importList;
theList != NULL;
theList = theList->next)
{
DefmoduleData(theEnv)->NumberOfPortItems++;
if (theList->moduleName == NULL) newPortItem.moduleName = -1L;
else newPortItem.moduleName = (long) theList->moduleName->bucket;
if (theList->constructType == NULL) newPortItem.constructType = -1L;
else newPortItem.constructType = (long) theList->constructType->bucket;
if (theList->constructName == NULL) newPortItem.constructName = -1L;
else newPortItem.constructName = (long) theList->constructName->bucket;
if (theList->next == NULL) newPortItem.next = -1L;
else newPortItem.next = DefmoduleData(theEnv)->NumberOfPortItems;
GenWrite(&newPortItem,sizeof(struct bsavePortItem),fp);
}
for (theList = defmodulePtr->exportList;
theList != NULL;
theList = theList->next)
{
DefmoduleData(theEnv)->NumberOfPortItems++;
if (theList->moduleName == NULL) newPortItem.moduleName = -1L;
else newPortItem.moduleName = (long) theList->moduleName->bucket;
if (theList->constructType == NULL) newPortItem.constructType = -1L;
else newPortItem.constructType = (long) theList->constructType->bucket;
if (theList->constructName == NULL) newPortItem.constructName = -1L;
else newPortItem.constructName = (long) theList->constructName->bucket;
if (theList->next == NULL) newPortItem.next = -1L;
else newPortItem.next = DefmoduleData(theEnv)->NumberOfPortItems;
GenWrite(&newPortItem,sizeof(struct bsavePortItem),fp);
}
defmodulePtr = (struct defmodule *) EnvGetNextDefmodule(theEnv,defmodulePtr);
}
/*=============================================================*/
/* If a binary image was already loaded when the bsave command */
/* was issued, then restore the counts indicating the number */
/* of defmodule and port items in the binary image (these were */
/* overwritten by the binary save). */
/*=============================================================*/
RestoreBloadCount(theEnv,&DefmoduleData(theEnv)->BNumberOfDefmodules);
RestoreBloadCount(theEnv,&DefmoduleData(theEnv)->NumberOfPortItems);
}
#endif /* BLOAD_AND_BSAVE */
/**********************************************************/
/* BloadStorage: Allocates storage requirements for the */
/* defmodules and port items used by this binary image. */
/**********************************************************/
static void BloadStorage(
void *theEnv)
{
size_t space;
/*=======================================*/
/* Determine the number of defmodule and */
/* port item data structures to be read. */
/*=======================================*/
GenReadBinary(theEnv,&space,sizeof(size_t));
GenReadBinary(theEnv,&DefmoduleData(theEnv)->BNumberOfDefmodules,sizeof(long int));
GenReadBinary(theEnv,&DefmoduleData(theEnv)->NumberOfPortItems,sizeof(long int));
/*================================*/
/* Allocate the space needed for */
/* the defmodule data structures. */
/*================================*/
if (DefmoduleData(theEnv)->BNumberOfDefmodules == 0)
{
DefmoduleData(theEnv)->DefmoduleArray = NULL;
return;
}
space = (DefmoduleData(theEnv)->BNumberOfDefmodules * sizeof(struct defmodule));
DefmoduleData(theEnv)->DefmoduleArray = (struct defmodule *) genalloc(theEnv,space);
/*================================*/
/* Allocate the space needed for */
/* the port item data structures. */
/*================================*/
if (DefmoduleData(theEnv)->NumberOfPortItems == 0)
{
DefmoduleData(theEnv)->PortItemArray = NULL;
return;
}
space = (DefmoduleData(theEnv)->NumberOfPortItems * sizeof(struct portItem));
DefmoduleData(theEnv)->PortItemArray = (struct portItem *) genalloc(theEnv,space);
}
/********************************************/
/* BloadBinaryItem: Loads and refreshes the */
/* defmodules used by this binary image. */
/********************************************/
static void BloadBinaryItem(
void *theEnv)
{
size_t space;
GenReadBinary(theEnv,&space,sizeof(size_t));
if (DefmoduleData(theEnv)->BNumberOfDefmodules == 0) return;
BloadandRefresh(theEnv,DefmoduleData(theEnv)->BNumberOfDefmodules,sizeof(struct bsaveDefmodule),UpdateDefmodule);
BloadandRefresh(theEnv,DefmoduleData(theEnv)->NumberOfPortItems,sizeof(struct bsavePortItem),UpdatePortItem);
SetListOfDefmodules(theEnv,(void *) DefmoduleData(theEnv)->DefmoduleArray);
EnvSetCurrentModule(theEnv,(void *) EnvGetNextDefmodule(theEnv,NULL));
}
/******************************************/
/* UpdateDefmodule: Bload refresh routine */
/* for defmodule data structure. */
/******************************************/
static void UpdateDefmodule(
void *theEnv,
void *buf,
long obji)
{
struct bsaveDefmodule *bdp;
struct moduleItem *theItem;
int i;
bdp = (struct bsaveDefmodule *) buf;
DefmoduleData(theEnv)->DefmoduleArray[obji].name = SymbolPointer(bdp->name);
IncrementSymbolCount(DefmoduleData(theEnv)->DefmoduleArray[obji].name);
if (bdp->next != -1L)
{ DefmoduleData(theEnv)->DefmoduleArray[obji].next = (struct defmodule *) &DefmoduleData(theEnv)->DefmoduleArray[bdp->next]; }
else
{ DefmoduleData(theEnv)->DefmoduleArray[obji].next = NULL; }
if (GetNumberOfModuleItems(theEnv) == 0)
{ DefmoduleData(theEnv)->DefmoduleArray[obji].itemsArray = NULL; }
else
{
DefmoduleData(theEnv)->DefmoduleArray[obji].itemsArray =
(struct defmoduleItemHeader **) gm2(theEnv,sizeof(void *) * GetNumberOfModuleItems(theEnv));
}
for (i = 0, theItem = GetListOfModuleItems(theEnv);
(i < GetNumberOfModuleItems(theEnv)) && (theItem != NULL) ;
i++, theItem = theItem->next)
{
if (theItem->bloadModuleReference == NULL)
{ DefmoduleData(theEnv)->DefmoduleArray[obji].itemsArray[i] = NULL; }
else
{
DefmoduleData(theEnv)->DefmoduleArray[obji].itemsArray[i] =
(struct defmoduleItemHeader *)
(*theItem->bloadModuleReference)(theEnv,obji);
}
}
DefmoduleData(theEnv)->DefmoduleArray[obji].ppForm = NULL;
if (bdp->importList != -1L)
{ DefmoduleData(theEnv)->DefmoduleArray[obji].importList = (struct portItem *) &DefmoduleData(theEnv)->PortItemArray[bdp->importList]; }
else
{ DefmoduleData(theEnv)->DefmoduleArray[obji].importList = NULL; }
if (bdp->exportList != -1L)
{ DefmoduleData(theEnv)->DefmoduleArray[obji].exportList = (struct portItem *) &DefmoduleData(theEnv)->PortItemArray[bdp->exportList]; }
else
{ DefmoduleData(theEnv)->DefmoduleArray[obji].exportList = NULL; }
DefmoduleData(theEnv)->DefmoduleArray[obji].bsaveID = bdp->bsaveID;
}
/*****************************************/
/* UpdatePortItem: Bload refresh routine */
/* for port item data structure. */
/*****************************************/
static void UpdatePortItem(
void *theEnv,
void *buf,
long obji)
{
struct bsavePortItem *bdp;
bdp = (struct bsavePortItem *) buf;
if (bdp->moduleName != -1L)
{
DefmoduleData(theEnv)->PortItemArray[obji].moduleName = SymbolPointer(bdp->moduleName);
IncrementSymbolCount(DefmoduleData(theEnv)->PortItemArray[obji].moduleName);
}
else
{ DefmoduleData(theEnv)->PortItemArray[obji].moduleName = NULL; }
if (bdp->constructType != -1L)
{
DefmoduleData(theEnv)->PortItemArray[obji].constructType = SymbolPointer(bdp->constructType);
IncrementSymbolCount(DefmoduleData(theEnv)->PortItemArray[obji].constructType);
}
else
{ DefmoduleData(theEnv)->PortItemArray[obji].constructType = NULL; }
if (bdp->constructName != -1L)
{
DefmoduleData(theEnv)->PortItemArray[obji].constructName = SymbolPointer(bdp->constructName);
IncrementSymbolCount(DefmoduleData(theEnv)->PortItemArray[obji].constructName);
}
else
{ DefmoduleData(theEnv)->PortItemArray[obji].constructName = NULL; }
if (bdp->next != -1L)
{ DefmoduleData(theEnv)->PortItemArray[obji].next = (struct portItem *) &DefmoduleData(theEnv)->PortItemArray[bdp->next]; }
else
{ DefmoduleData(theEnv)->PortItemArray[obji].next = NULL; }
}
/***************************************/
/* ClearBload: Defmodule clear routine */
/* when a binary load is in effect. */
/***************************************/
static void ClearBload(
void *theEnv)
{
long i;
size_t space;
struct portItem *theList;
/*===========================*/
/* Decrement in use counters */
/* used by the binary image. */
/*===========================*/
for (i = 0; i < DefmoduleData(theEnv)->BNumberOfDefmodules; i++)
{
DecrementSymbolCount(theEnv,DefmoduleData(theEnv)->DefmoduleArray[i].name);
for (theList = DefmoduleData(theEnv)->DefmoduleArray[i].importList;
theList != NULL;
theList = theList->next)
{
if (theList->moduleName != NULL) DecrementSymbolCount(theEnv,theList->moduleName);
if (theList->constructType != NULL) DecrementSymbolCount(theEnv,theList->constructType);
if (theList->constructName != NULL) DecrementSymbolCount(theEnv,theList->constructName);
}
for (theList = DefmoduleData(theEnv)->DefmoduleArray[i].exportList;
theList != NULL;
theList = theList->next)
{
if (theList->moduleName != NULL) DecrementSymbolCount(theEnv,theList->moduleName);
if (theList->constructType != NULL) DecrementSymbolCount(theEnv,theList->constructType);
if (theList->constructName != NULL) DecrementSymbolCount(theEnv,theList->constructName);
}
rm(theEnv,DefmoduleData(theEnv)->DefmoduleArray[i].itemsArray,sizeof(void *) * GetNumberOfModuleItems(theEnv));
}
/*================================*/
/* Deallocate the space used for */
/* the defmodule data structures. */
/*================================*/
space = DefmoduleData(theEnv)->BNumberOfDefmodules * sizeof(struct defmodule);
if (space != 0) genfree(theEnv,(void *) DefmoduleData(theEnv)->DefmoduleArray,space);
DefmoduleData(theEnv)->BNumberOfDefmodules = 0;
/*================================*/
/* Deallocate the space used for */
/* the port item data structures. */
/*================================*/
space = DefmoduleData(theEnv)->NumberOfPortItems * sizeof(struct portItem);
if (space != 0) genfree(theEnv,(void *) DefmoduleData(theEnv)->PortItemArray,space);
DefmoduleData(theEnv)->NumberOfPortItems = 0;
/*===========================*/
/* Reset module information. */
/*===========================*/
SetListOfDefmodules(theEnv,NULL);
CreateMainModule(theEnv);
DefmoduleData(theEnv)->MainModuleRedefinable = TRUE;
}
#endif /* (BLOAD || BLOAD_ONLY || BLOAD_AND_BSAVE) && (! RUN_TIME) */