#ifndef __INC_POS_PEXEC_LIBRARY_H
#define __INC_POS_PEXEC_LIBRARY_H
/*******************************************************************
 Includes Release 24
 (C) Copyright 1995-1997 proDAD
     All Rights Reserved

 $AUT Holger Burkarth
 $DAT >>Library.h<<   24 Mar 1997    09:57:37 - (C) ProDAD
*******************************************************************/
#ifndef __INC_POS_PEXEC_LIST_H
#include <pExec/List.h>
#endif
 #ifndef __INC_POS_PEXEC_EXECBASE_H
 #include <pExec/ExecBase.h>
 #endif


/*----------------------------------
-----------------------------------*/
struct pOS_Library
{
  struct pOS_ExNode         lib_Node;
  ULONG                     lib_Flags;       /* (enum pOS_LibraryFlags) */
  UWORD                     lib_NegSize;     /* number of bytes before library */
  UWORD                     lib_PosSize;     /* number of bytes after library */
  UWORD                     lib_Version;     /* major */
  UWORD                     lib_Revision;    /* minor */
  const CHAR               *lib_IdString;    /* ASCII Identification */
  const struct pOS_TagItem *lib_Describe;    /*  */
  ULONG                     lib_Sum;         /* the Checksum itself */
  UWORD                     lib_OpenCnt;     /* number of current opens */
  struct pOS_SegmentLst    *lib_Segm;
  UWORD                     lib_pad1;
};



enum pOS_LibraryFlags
{
  LIBF_SUMMING =0x01,           /* we are currently checksumming */
  LIBF_CHANGED =0x02,           /* we have just changed the lib */
  LIBF_SUMUSED =0x04,           /* set if we should bother to sum */
  LIBF_DELEXP  =0x08,           /* delayed expunge */

  LIBF_ROM     =0x20,           /* Lib is RomLib */
/** 0x80 => reserved in resident **/

  LIBF_Unique    =0x1000,       /* Lib wird geklont, kein Multi-Open erlaubt */
  LIBF_DevAsLib  =0x2000        /* Device kann als Library geöffnet werden */
};


/*----------------------------------
-----------------------------------*/
struct pOS_LibraryFunction
{
  ULONG (*func)(_R_LB struct pOS_Library*,...);
  UBYTE _d[8];
};


/*----------------------------------
 Rückwärtsgerichtete Struktur, LibBase
 steht auf das Ende der Struct.
-----------------------------------*/
struct pOS_StdLibraryFunction
{
  struct pOS_LibraryFunction Reserved[8];

  struct pOS_SegmentLst* (*Expunge_func)(_R_LB struct pOS_Library*);
  UBYTE _d3[8];
  VOID  (*Close_func)(_R_LB struct pOS_Library*);
  UBYTE _d2[8];
  BOOL  (*Open_func)(_R_LB struct pOS_Library*);
  UBYTE _d1[8];
}; /* => LibBase */


#define _pOS_GetStdLibraryFunction(lib) \
 ( (struct pOS_StdLibraryFunction*)((ULONG)(lib) - sizeof(struct pOS_StdLibraryFunction)) )

#define _pOS_GetLibraryFunction(lib,index) \
 ( (struct pOS_LibraryFunction*)((ULONG)(lib) - (index)*sizeof(struct pOS_LibraryFunction)) )

#define _pOS_GetStdLibFunc(type,lib) \
 ( (type*)((ULONG)(lib) - sizeof(type)) )








/*----------------------------------
-----------------------------------*/
struct pOS_ResidentLibInit
{
            size_t  lit_DataSize;         /* library data space size */
  __CONST__ ULONG **lit_FuncTable;        /* table of entry points   */
            VOID   *lit_DataInit;         /* table of data initializers */
            BOOL  (*lit_InitFunc)(_R_LB struct pOS_ExecBase*,_R_A0 struct pOS_Library*); /* initialization function to run */
  UBYTE lit_Reserved[8];
};



enum pOS_LibraryFuncID
{
  LIBFUNCID_Base    = 0xffffff00, /** z.B.  (ULONG*)(LIBFUNCID_Base | LIBFUNCID_Reverse) **/
  LIBFUNCID_Reverse = 0x80
};


/*********************************/

#define _pOS_FreeLibraryMem(exec,lib) \
 pOS_FreeMem(exec,(APTR)((ULONG)(lib)-(lib)->lib_NegSize),(lib)->lib_NegSize+(lib)->lib_PosSize);

#define _pOS_FreeLibraryMem2(lib) \
 pOS_FreeMem((APTR)((ULONG)(lib)-(lib)->lib_NegSize),(lib)->lib_NegSize+(lib)->lib_PosSize);


#endif