--
--****************************************************************************
--*                                                                          *
--*  Copyright (c) 2001                                                      *
--*  by DIGITAL Equipment Corporation, Maynard, Mass.                        *
--*                                                                          *
--*  This software is furnished under a license and may be used and  copied  *
--*  only  in  accordance  with  the  terms  of  such  license and with the  *
--*  inclusion of the above copyright notice.  This software or  any  other  *
--*  copies  thereof may not be provided or otherwise made available to any  *
--*  other person.  No title to and ownership of  the  software  is  hereby  *
--*  transferred.                                                            *
--*                                                                          *
--*  The information in this software is subject to change  without  notice  *
--*  and  should  not  be  construed  as  a commitment by DIGITAL Equipment  *
--*  Corporation.                                                            *
--*                                                                          *
--*  DIGITAL assumes no responsibility for the use or  reliability  of  its  *
--*  software on equipment which is not supplied by DIGITAL.                 *
--*                                                                          *
--****************************************************************************
--********************************************************************************************************************
-- Created: 15-MAR-2001 22:53:31 by OpenVMS SDL EV1-33     
-- Source:   2-SEP-1989 10:50:21 $11$DUA933:[LIB_ADA.LIS]PBHDEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package PBHDEF is
 
--  module $PBHDEF
 
--+
-- DEFINE PERFORMANCE BUFFER HEADER
---
 
    PBH_K_START			: constant := 13;			-- START OF DATA AREA 
    PBH_C_START			: constant := 13;			-- START OF DATA AREA 
    PBH_K_LENGTH		: constant := 512;			-- LENGTH OF PERFORMANCE DATA BUFFER 
    PBH_C_LENGTH		: constant := 512;			-- LENGTH OF PERFORMANCE DATA BUFFER 
 
    type PBH_TYPE is
	record
	    BUFRFL	: UNSIGNED_LONGWORD;				-- BUFFER FORWARD LINK 
	    BUFRBL	: UNSIGNED_LONGWORD;				-- BUFFER BACKWARD LINK 
	    SIZE	: UNSIGNED_WORD;				-- SIZE OF PERFORMANCE DATA BUFFER 
	    TYP		: UNSIGNED_BYTE;				-- DATA STRUCTURE TYPE 
	    MSGCNT	: UNSIGNED_WORD;				-- COUNT OF MESSAGES IN BUFFER 
	    FILLER_1	: UNSIGNED_BYTE_ARRAY (1 .. 499);		-- DATA AREA 
	end record;
 
	    for PBH_TYPE use 
		record
		    BUFRFL	at 0 range 0 .. 31;
		    BUFRBL	at 4 range 0 .. 31;
		    SIZE	at 8 range 0 .. 15;
		    TYP		at 10 range 0 .. 7;
		    MSGCNT	at 11 range 0 .. 15;
		    FILLER_1	at 13 range 0 .. 3991;
		end record;
	    for PBH_TYPE'SIZE use 4096;
 
    PBH_TYPE_INIT : constant PBH_TYPE := 
	    (BUFRFL	=> 0,
	    BUFRBL	=> 0,
	    SIZE	=> 0,
	    TYP		=> 0,
	    MSGCNT	=> 0,
	    FILLER_1	=> (others => 0));
 
end PBHDEF;