--********************************************************************************************************************
-- Created:  9-Mar-2021 22:28:19 by OpenVMS SDL EV3-3      
-- Source:  22-APR-1993 10:35:40 $1$DGA8085:[LIB_ADA.LIS]CLUICBDEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package CLUICBDEF is
 
--  module $CLUICBDEF
 
--+
-- CLUICB - Incarnation File Control Block
---
 
    CLUICB_M_WIP		: constant := 16#00000001#;
    CLUICB_M_WREQ		: constant := 16#00000002#;
    CLUICB_K_F_LENGTH		: constant := 32;			--  Length of fixed portion
    CLUICB_C_F_LENGTH		: constant := 32;			--  Length of fixed portion
 
-- End of fixed portion of the block
 
    CLUICB_T_BUFFER		: constant := 32;			--  Start of incarnation
 
--  file buffer area
 
    type CLUICB_FLAGS_TYPE is						--  Flags
	record
	    WIP		: BOOLEAN;					--  Write-in-progress bit 
	    WREQ	: BOOLEAN;					--  Write requested bit
	    FILLER_1	: UNSIGNED_14;
	end record;
 
	    for CLUICB_FLAGS_TYPE use 
		record
		    WIP		at 0 range 0 .. 0;
		    WREQ	at 0 range 1 .. 1;
		    FILLER_1	at 0 range 2 .. 15;
		end record;
	    for CLUICB_FLAGS_TYPE'SIZE use 16;
 
    CLUICB_FLAGS_TYPE_INIT : constant CLUICB_FLAGS_TYPE := 
	    (WIP	=> FALSE,
	    WREQ	=> FALSE,
	    FILLER_1	=> 0);
 
    type CLUICB_TYPE is
	record
									--  Fixed portion
	    FL		: ADDRESS;					--  Forward Link
	    BL		: ADDRESS;					--  Backward Link
	    SIZE	: UNSIGNED_WORD;				--  Size of block
	    TYP		: UNSIGNED_BYTE;				--  Structure type
	    SUBTYP	: UNSIGNED_BYTE;				--  Structure subtype
	    IRP		: ADDRESS;					--  Address of IRP
	    LBN		: UNSIGNED_LONGWORD;				--  Incarnation file logical block number
	    WIP_CNT	: UNSIGNED_WORD;				--  Write-in-progress counter
	    FILLER_1	: UNSIGNED_WORD;				--  Align 
	    FLAGS	: CLUICB_FLAGS_TYPE;				--  Flags
	    FILLER_2	: UNSIGNED_WORD;				--  Align 
	    FILLER_3	: STRING(1 .. 4);				--  QUADWORD ALIGN
	end record;
 
	    for CLUICB_TYPE use 
		record
		    FL		at 0 range 0 .. 31;
		    BL		at 4 range 0 .. 31;
		    SIZE	at 8 range 0 .. 15;
		    TYP		at 10 range 0 .. 7;
		    SUBTYP	at 11 range 0 .. 7;
		    IRP		at 12 range 0 .. 31;
		    LBN		at 16 range 0 .. 31;
		    WIP_CNT	at 20 range 0 .. 15;
		    FILLER_1	at 22 range 0 .. 15;
		    FLAGS	at 24 range 0 .. 15;
		    FILLER_2	at 26 range 0 .. 15;
		    FILLER_3	at 28 range 0 .. 31;
		end record;
	    for CLUICB_TYPE'SIZE use 256;
 
    CLUICB_TYPE_INIT : constant CLUICB_TYPE := 
	    (FL		=> ADDRESS_ZERO,
	    BL		=> ADDRESS_ZERO,
	    SIZE	=> 0,
	    TYP		=> 0,
	    SUBTYP	=> 0,
	    IRP		=> ADDRESS_ZERO,
	    LBN		=> 0,
	    WIP_CNT	=> 0,
	    FILLER_1	=> 0,
	    FLAGS	=> CLUICB_FLAGS_TYPE_INIT,
	    FILLER_2	=> 0,
	    FILLER_3	=> (others => ASCII.NUL));
 
end CLUICBDEF;