fs80entitydata.c

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/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/*                                    DESCRIPTION                             */
/*                                                                            */
/* This primitive returns a pointer on the fs entity's control block 	      */
/*        if the entity is not knowed from FS it's CB is created and 	      */
/*        placed in the entity's address table and in the RTK -> FS           */
/*        		translation table 				      */
/*									      */
/*----------------------------------------------------------------------------*/
/***************************************************************************)P*/
/* #*/
#undef PROCEDURE_NUMBER 
#define PROCEDURE_NUMBER 7

t_fsEntityStruct *  Fs80_07EDGetEntityPtr( t_RtkID vp_RtkId )
{
   u16 vl_FsID;

   /* Point on entity's address table */
   t_fsEntityStruct ** pl_TabPtrEntity = s_EntityDataBaseStruct.p_EntityIndexedByFsId;

    /* Translate the RTK ID in FS ID */
    vl_FsID = Fs80_02EDGetFsId ( vp_RtkId );

    /* return pointer on entity's structure this is in entity's table
		at index 'FS index' */
    return ( pl_TabPtrEntity[vl_FsID] ); 
}


/**/
/*P(***************************************************************************/
/* Procedure name : Fs80_08EDInsertFileInEntity                               */
/* Object :    Insert a new file in entity's opened files		      */
/*----------------------------------------------------------------------------*/
/* Input parameters  :                                                        */
/* -------------------                                                        */
/*   t_fsEntityStruct * pp_Entity : pointer on entity's control block 	      */
/*   t_fsFILE * pp_File      : Pointer on file structure		      */
/*						    			      */
/*									      */
/* Output parameters :                                                        */
/* -------------------                                                        */
/*									      */
/* Used variables    :                                                        */
/* -------------------                                                        */
/*   							                      */
/*                                                                            */
/* Used procedures   :                                                        */
/* -------------------                                                        */
/*                                                                            */
/*                                                                            */
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/*                                    DESCRIPTION                             */
/*                                                                            */
/*      This function insert a new file in entity's open files list	      */
/*									      */
/*----------------------------------------------------------------------------*/
/***************************************************************************)P*/
/* #*/
#undef PROCEDURE_NUMBER 
#define PROCEDURE_NUMBER 8


void Fs80_08EDInsertFileInEntity( t_fsEntityStruct * pp_Entity, t_fsFILE * pp_File )
{

  register t_fsFILE * pl_FileList = pp_Entity->p_FileList;   /* Point on entity's file list */

   /* If list not empty update previous pointer of object in top of queue */
   /* If list is not empty previous pointer of element in top of queue is to pdate */
   if ( pl_FileList != 0 ) pl_FileList->p_EntityPrecPtr = pp_File;

   /* Next pointers is set to pointer on linked list value */
   pp_File->p_EntityNextPtr = pl_FileList;

   /* Like the insert is in top of file previous pointer is set to 0 */
   pp_File->p_EntityPrecPtr = 0;

   /* pointer in entity structure point on the file structure */
   pp_Entity->p_FileList = pp_File;

   /* Note entity's CB address in File structure */
   pp_File->p_Entity = pp_Entity;
}



/**/
/*P(***************************************************************************/
/* Procedure name : Fs80_09EDDeleteFileFromEntity                             */
/* Object :    Delete a file from the opened file entity's opened files	list  */
/*----------------------------------------------------------------------------*/
/* Input parameters  :                                                        */
/* -------------------                                                        */
/*   t_fsFILE * pp_File      : Pointer on file structure		      */
/*						    			      */
/*									      */
/* Output parameters :                                                        */
/* -------------------                                                        */
/*									      */
/* Used variables    :                                                        */
/* -------------------                                                        */
/*   							                      */
/*                                                                            */
/* Used procedures   :                                                        */
/* -------------------                                                        */
/*                                                                            */
/*                                                                            */
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/*                                    DESCRIPTION                             */
/*                                                                            */
/*      This function insert a new file in entity's open files list	      */
/*									      */
/*----------------------------------------------------------------------------*/
/***************************************************************************)P*/
/* #*/
#undef PROCEDURE_NUMBER 
#define PROCEDURE_NUMBER 9


void Fs80_09EDDeleteFileFromEntity( t_fsFILE * pp_File )
{
   t_fsEntityStruct * pl_Entity = (t_fsEntityStruct *) pp_File->p_Entity;

   /* If object to delete in top of list updates list pointer else next pointer#
			 of previous object */
   if ( pp_File-> p_EntityPrecPtr == NIL ) pl_Entity->p_FileList = pp_File-> p_EntityNextPtr;
   else pp_File-> p_EntityPrecPtr->p_EntityNextPtr = pp_File-> p_EntityNextPtr;

   /* If object to delete not last of the queue updates previous pointer of next object */
   if ( pp_File-> p_EntityNextPtr != NIL )
       pp_File->p_EntityNextPtr->p_EntityPrecPtr = pp_File->p_EntityPrecPtr;

}



/**/
/*P(***************************************************************************/
/* Procedure name : Fs80_10EDInsertDirInEntity                                */
/* Object :    Insert a new directory in entity's opened directories	      */
/*----------------------------------------------------------------------------*/
/* Input parameters  :                                                        */
/* -------------------                                                        */
/*   t_fsEntityStruct * pp_Entity : pointer on entity's control block 	      */
/*   t_fsDIR * pp_Dir      : Pointer on directory structure		      */
/*						    			      */
/*									      */
/* Output parameters :                                                        */
/* -------------------                                                        */
/*									      */
/* Used variables    :                                                        */
/* -------------------                                                        */
/*   							                      */
/*                                                                            */
/* Used procedures   :                                                        */
/* -------------------                                                        */
/*                                                                            */
/*                                                                            */
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/*                                    DESCRIPTION                             */
/*                                                                            */
/*   This function insert a new directory in entity's open directories list   */
/*									      */
/*----------------------------------------------------------------------------*/
/***************************************************************************)P*/
/* #*/
#undef PROCEDURE_NUMBER 
#define PROCEDURE_NUMBER 10

void Fs80_10EDInsertDirInEntity( t_fsEntityStruct * pp_Entity, t_fsDIR * pp_Dir )
{

  register t_fsDIR * pl_DirList = pp_Entity->p_DirList;   /* Point on entity's directories list */

   /* If list not empty update previous pointer of object in top of queue */
   /* If list is not empty previous pointer of element in top of queue is to pdate */
   if ( pl_DirList != NIL ) pl_DirList->p_EntityPrecPtr = pp_Dir;

   /* Next pointers is set to pointer on linked list value */
   pp_Dir->p_EntityNextPtr = pl_DirList;

   /* Like the insert is in top of file previous pointer is set to NIL */
   pp_Dir->p_EntityPrecPtr = NIL;

   /* pointer in entity structure point on the file structure */
   pp_Entity->p_DirList = pp_Dir;

   /* Note entity's CB address in Dir structure */
   pp_Dir->p_Entity = pp_Entity;


}



/**/
/*P(***************************************************************************/
/* Procedure name : Fs80_11EDDeleteDirFromEntity                              */
/* Object : Delete a directory from the opened dir entity's opened dir list   */
/*----------------------------------------------------------------------------*/
/* Input parameters  :                                                        */
/* -------------------                                                        */
/*									      */
/*   t_fsDIR * pp_Dir      : Pointer on directory's structure		      */
/*						    			      */
/*									      */
/* Output parameters :                                                        */
/* -------------------                                                        */
/*									      */
/* Used variables    :                                                        */
/* -------------------                                                        */
/*   							                      */
/*                                                                            */
/* Used procedures   :                                                        */
/* -------------------                                                        */
/*                                                                            */
/*                                                                            */
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/*                                    DESCRIPTION                             */
/*                                                                            */
/*   This function insert a new directory in entity's open directories list   */
/*									      */
/*----------------------------------------------------------------------------*/
/***************************************************************************)P*/
/* #*/
#undef PROCEDURE_NUMBER 
#define PROCEDURE_NUMBER 11

void Fs80_11EDDeleteDirFromEntity( t_fsDIR * pp_Dir )
{
   t_fsEntityStruct * pl_Entity = ( t_fsEntityStruct *) pp_Dir->p_Entity;

   /* If object to delete in top of list updates list pointer else next pointer
			 of previous object */
   if ( pp_Dir-> p_EntityPrecPtr == 0 ) pl_Entity->p_DirList = pp_Dir-> p_EntityNextPtr;
   else pp_Dir-> p_EntityPrecPtr->p_EntityNextPtr = pp_Dir-> p_EntityNextPtr;

   /* If object to delete not last of the queue updates previous pointer of next object */
   if ( pp_Dir-> p_EntityNextPtr != 0 )
       pp_Dir->p_EntityNextPtr->p_EntityPrecPtr = pp_Dir->p_EntityPrecPtr;

}

#undef PROCEDURE_NUMBER 
#define PROCEDURE_NUMBER 11

void Fs80_12EDInvalidCurrentDir( t_fsVolStruct * pp_Volume, u32 vp_DirID )
{
   t_fsEntityStruct ** 	pl_EntityTab = s_EntityDataBaseStruct.p_EntityIndexedByFsId;
   u32			vl_NbrEntitys = s_EntityDataBaseStruct.v_NbrEntitys;
   t_fsEntityStruct * 	pl_Entity;

    while ( vl_NbrEntitys-- != 0 )
    {
	/* Point on entity's control block */
	pl_Entity = * pl_EntityTab;

	/* If in right volume directory exist and is equal to searched directory invalid 
				the current path */
	if ( ( pl_Entity -> p_CurrentVolume == pp_Volume)
				&&
	     ( pl_Entity -> v_DirLevelNExist == TRUE ) 
				&&
	     ( pl_Entity->v_CurrentDirIDLevelN == vp_DirID)) 
			pl_Entity->v_CurrPathValid = FALSE;

	/* Point on next entry in table */
	pl_EntityTab++;
    } 
}

#endif /* FSS_FTR */