tmpltbin.c

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   /*******************************************************/
   /*      "C" Language Integrated Production System      */
   /*                                                     */
   /*             CLIPS Version 6.21  06/15/03            */
   /*                                                     */
   /*            DEFTEMPLATE BSAVE/BLOAD MODULE           */
   /*******************************************************/

/*************************************************************/
/* Purpose: Implements the binary save/load feature for the  */
/*    deftemplate construct.                                 */
/*                                                           */
/* Principal Programmer(s):                                  */
/*      Gary D. Riley                                        */
/*                                                           */
/* Contributing Programmer(s):                               */
/*      Brian L. Donnell                                     */
/*                                                           */
/* Revision History:                                         */
/*      6.23: Added support for templates maintaining their  */
/*            own list of facts.                             */
/*                                                           */
/*************************************************************/

#define  _TMPLTBIN_SOURCE_

#include "setup.h"

#if DEFTEMPLATE_CONSTRUCT && (BLOAD || BLOAD_ONLY || BLOAD_AND_BSAVE) && (! RUN_TIME)

#include <stdio.h>
#define _STDIO_INCLUDED_

#include "memalloc.h"
#include "bload.h"
#include "bsave.h"
#include "factbin.h"
#include "cstrnbin.h"
#include "factmngr.h"
#include "tmpltpsr.h"
#include "tmpltdef.h"
#include "tmpltutl.h"
#include "envrnmnt.h"

#include "tmpltbin.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                    UpdateDeftemplateModule(void *,void *,long);
   static void                    UpdateDeftemplate(void *,void *,long);
   static void                    UpdateDeftemplateSlot(void *,void *,long);
   static void                    ClearBload(void *);
   static void                    DeallocateDeftemplateBloadData(void *);

/***********************************************/
/* DeftemplateBinarySetup: Installs the binary */
/*   save/load feature for deftemplates.       */
/***********************************************/
globle void DeftemplateBinarySetup(
  void *theEnv)
  {
   AllocateEnvironmentData(theEnv,TMPLTBIN_DATA,sizeof(struct deftemplateBinaryData),DeallocateDeftemplateBloadData);
#if BLOAD_AND_BSAVE
   AddBinaryItem(theEnv,"deftemplate",0,BsaveFind,NULL,
                             BsaveStorage,BsaveBinaryItem,
                             BloadStorage,BloadBinaryItem,
                             ClearBload);
#endif
#if (BLOAD || BLOAD_ONLY)
   AddBinaryItem(theEnv,"deftemplate",0,NULL,NULL,NULL,NULL,
                             BloadStorage,BloadBinaryItem,
                             ClearBload);
#endif
  }
  
/***********************************************************/
/* DeallocateDeftemplateBloadData: Deallocates environment */
/*    data for the deftemplate bsave functionality.        */
/***********************************************************/
static void DeallocateDeftemplateBloadData(
  void *theEnv)
  {
   unsigned long space;

   space =  DeftemplateBinaryData(theEnv)->NumberOfTemplateModules * sizeof(struct deftemplateModule);
   if (space != 0) genlongfree(theEnv,(void *) DeftemplateBinaryData(theEnv)->ModuleArray,space);
   
   space = DeftemplateBinaryData(theEnv)->NumberOfDeftemplates * sizeof(struct deftemplate);
   if (space != 0) genlongfree(theEnv,(void *) DeftemplateBinaryData(theEnv)->DeftemplateArray,space);

   space =  DeftemplateBinaryData(theEnv)->NumberOfTemplateSlots * sizeof(struct templateSlot);
   if (space != 0) genlongfree(theEnv,(void *) DeftemplateBinaryData(theEnv)->SlotArray,space);
  }

#if BLOAD_AND_BSAVE

/**************************************************************/
/* BsaveFind: Counts the number of data structures which must */
/*   be saved in the binary image for the deftemplates in the */
/*   current environment.                                     */
/**************************************************************/
static void BsaveFind(
  void *theEnv)
  {
   struct deftemplate *theDeftemplate;
   struct templateSlot *theSlot;
   struct defmodule *theModule;

   /*=======================================================*/
   /* 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,DeftemplateBinaryData(theEnv)->NumberOfDeftemplates);
   SaveBloadCount(theEnv,DeftemplateBinaryData(theEnv)->NumberOfTemplateSlots);
   SaveBloadCount(theEnv,DeftemplateBinaryData(theEnv)->NumberOfTemplateModules);

   /*==================================================*/
   /* Set the count of deftemplates, deftemplate slots */
   /* and deftemplate module data structures to zero.  */
   /*==================================================*/

   DeftemplateBinaryData(theEnv)->NumberOfDeftemplates = 0;
   DeftemplateBinaryData(theEnv)->NumberOfTemplateSlots = 0;
   DeftemplateBinaryData(theEnv)->NumberOfTemplateModules = 0;

   /*===========================*/
   /* Loop through each module. */
   /*===========================*/

   for (theModule = (struct defmodule *) EnvGetNextDefmodule(theEnv,NULL);
        theModule != NULL;
        theModule = (struct defmodule *) EnvGetNextDefmodule(theEnv,theModule))
     {
      /*============================================*/
      /* Set the current module to the module being */
      /* examined and increment the number of       */
      /* deftemplate modules encountered.           */
      /*============================================*/

      EnvSetCurrentModule(theEnv,(void *) theModule);
      DeftemplateBinaryData(theEnv)->NumberOfTemplateModules++;

      /*======================================================*/
      /* Loop through each deftemplate in the current module. */
      /*======================================================*/

      for (theDeftemplate = (struct deftemplate *) EnvGetNextDeftemplate(theEnv,NULL);
           theDeftemplate != NULL;
           theDeftemplate = (struct deftemplate *) EnvGetNextDeftemplate(theEnv,theDeftemplate))
        {
         /*======================================================*/
         /* Initialize the construct header for the binary save. */
         /*======================================================*/

         MarkConstructHeaderNeededItems(&theDeftemplate->header,
                                        DeftemplateBinaryData(theEnv)->NumberOfDeftemplates++);

         /*=============================================================*/
         /* Loop through each slot in the deftemplate, incrementing the */
         /* slot count and marking the slot names as needed symbols.    */
         /*=============================================================*/

         for (theSlot = theDeftemplate->slotList;
              theSlot != NULL;
              theSlot = theSlot->next)
           {
            DeftemplateBinaryData(theEnv)->NumberOfTemplateSlots++;
            theSlot->slotName->neededSymbol = TRUE;
           }
        }

     }
  }

/*********************************************************/
/* BsaveStorage: Writes out the storage requirements for */
/*    all deftemplate structures to the binary file.     */
/*********************************************************/
static void BsaveStorage(
  void *theEnv,
  FILE *fp)
  {
   unsigned long space;

   /*========================================================================*/
   /* Three data structures are saved as part of a deftemplate binary image: */
   /* the deftemplate data structure, the deftemplateModule data structure,  */
   /* and the templateSlot data structure. The data structures associated    */
   /* with default values and constraints are not save with the deftemplate  */
   /* portion of the binary image.                                           */
   /*========================================================================*/

   space = sizeof(long) * 3;
   GenWrite(&space,(unsigned long) sizeof(long int),fp);
   GenWrite(&DeftemplateBinaryData(theEnv)->NumberOfDeftemplates,(unsigned long) sizeof(long int),fp);
   GenWrite(&DeftemplateBinaryData(theEnv)->NumberOfTemplateSlots,(unsigned long) sizeof(long int),fp);
   GenWrite(&DeftemplateBinaryData(theEnv)->NumberOfTemplateModules,(unsigned long) sizeof(long int),fp);
  }

/***********************************************/
/* BsaveBinaryItem: Writes out all deftemplate */
/*   structures to the binary file.            */
/***********************************************/
static void BsaveBinaryItem(
  void *theEnv,
  FILE *fp)
  {
   unsigned long space;
   struct deftemplate *theDeftemplate;
   struct bsaveDeftemplate tempDeftemplate;
   struct templateSlot *theSlot;
   struct bsaveTemplateSlot tempTemplateSlot;
   struct bsaveDeftemplateModule tempTemplateModule;
   struct defmodule *theModule;
   struct deftemplateModule *theModuleItem;

   /*============================================================*/
   /* Write out the amount of space taken up by the deftemplate, */
   /* deftemplateModule, and templateSlot data structures in the */
   /* binary image.                                              */
   /*============================================================*/

   space = (DeftemplateBinaryData(theEnv)->NumberOfDeftemplates * sizeof(struct bsaveDeftemplate)) +
           (DeftemplateBinaryData(theEnv)->NumberOfTemplateSlots * sizeof(struct bsaveTemplateSlot)) +
           (DeftemplateBinaryData(theEnv)->NumberOfTemplateModules * sizeof(struct bsaveDeftemplateModule));
   GenWrite(&space,(unsigned long) sizeof(unsigned long int),fp);

   /*===================================================*/
   /* Write out each deftemplate module data structure. */
   /*===================================================*/

   DeftemplateBinaryData(theEnv)->NumberOfDeftemplates = 0;
   for (theModule = (struct defmodule *) EnvGetNextDefmodule(theEnv,NULL);
        theModule != NULL;
        theModule = (struct defmodule *) EnvGetNextDefmodule(theEnv,theModule))
     {
      EnvSetCurrentModule(theEnv,(void *) theModule);

      theModuleItem = (struct deftemplateModule *)
                      GetModuleItem(theEnv,NULL,FindModuleItem(theEnv,"deftemplate")->moduleIndex);
      AssignBsaveDefmdlItemHdrVals(&tempTemplateModule.header,
                                           &theModuleItem->header);
      GenWrite(&tempTemplateModule,(unsigned long) sizeof(struct bsaveDeftemplateModule),fp);
     }

   /*============================================*/
   /* Write out each deftemplate data structure. */
   /*============================================*/

   DeftemplateBinaryData(theEnv)->NumberOfTemplateSlots = 0;
   for (theModule = (struct defmodule *) EnvGetNextDefmodule(theEnv,NULL);
        theModule != NULL;
        theModule = (struct defmodule *) EnvGetNextDefmodule(theEnv,theModule))
     {
      EnvSetCurrentModule(theEnv,(void *) theModule);

      for (theDeftemplate = (struct deftemplate *) EnvGetNextDeftemplate(theEnv,NULL);
           theDeftemplate != NULL;
           theDeftemplate = (struct deftemplate *) EnvGetNextDeftemplate(theEnv,theDeftemplate))
        {
         AssignBsaveConstructHeaderVals(&tempDeftemplate.header,
                                          &theDeftemplate->header);
         tempDeftemplate.implied = theDeftemplate->implied;
         tempDeftemplate.numberOfSlots = theDeftemplate->numberOfSlots;
         tempDeftemplate.patternNetwork = BsaveFactPatternIndex(theDeftemplate->patternNetwork);

         if (theDeftemplate->slotList != NULL)
           { tempDeftemplate.slotList = DeftemplateBinaryData(theEnv)->NumberOfTemplateSlots; }
         else tempDeftemplate.slotList = -1L;

         GenWrite(&tempDeftemplate,(unsigned long) sizeof(struct bsaveDeftemplate),fp);

         DeftemplateBinaryData(theEnv)->NumberOfTemplateSlots += theDeftemplate->numberOfSlots;
        }
     }

   /*=============================================*/
   /* Write out each templateSlot data structure. */
   /*=============================================*/

   for (theModule = (struct defmodule *) EnvGetNextDefmodule(theEnv,NULL);
        theModule != NULL;
        theModule = (struct defmodule *) EnvGetNextDefmodule(theEnv,theModule))
     {
      EnvSetCurrentModule(theEnv,(void *) theModule);

      for (theDeftemplate = (struct deftemplate *) EnvGetNextDeftemplate(theEnv,NULL);
           theDeftemplate != NULL;
           theDeftemplate = (struct deftemplate *) EnvGetNextDeftemplate(theEnv,theDeftemplate))
        {
         for (theSlot = theDeftemplate->slotList;