--********************************************************************************************************************
-- Created:  9-Mar-2021 22:28:20 by OpenVMS SDL EV3-3      
-- Source:  06-FEB-1997 09:29:18 $1$DGA8085:[LIB_ADA.LIS]DALDEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package DALDEF is
 
--  module $DALDEF
 
--+
-- DAL - Device Allocation Lock (value block contents)
--
-- This structure defines the contents of the lock value block for a 
-- device allocation lock.
---
 
    DAL_M_NOTFIRST_MNT		: constant := 16#00000001#;
    DAL_M_FOREIGN		: constant := 16#00000002#;
    DAL_M_GROUP			: constant := 16#00000004#;
    DAL_M_SYSTEM		: constant := 16#00000008#;
    DAL_M_WRITE			: constant := 16#00000010#;
    DAL_M_NOQUOTA		: constant := 16#00000020#;
    DAL_M_OVR_PROT		: constant := 16#00000040#;
    DAL_M_OVR_OWNUIC		: constant := 16#00000080#;
    DAL_M_NOINTERLOCK		: constant := 16#00000100#;
    DAL_M_SHADOW_MBR		: constant := 16#00000200#;
    DAL_M_POOL_MBR		: constant := 16#00000400#;
    DAL_S_DALDEF		: constant := 16;
 
    type DAL_FLAGS_TYPE is						--  Device usage flags:
	record
	    NOTFIRST_MNT	: BOOLEAN;				--    not first time device mounted.
	    FOREIGN	: BOOLEAN;					--    device mounted /FOREIGN
	    GROUP	: BOOLEAN;					--    device mounted /GROUP
	    SYSTEM	: BOOLEAN;					--    device mounted /SYSTEM
	    WRITE	: BOOLEAN;					--    write access allowed
	    NOQUOTA	: BOOLEAN;					--    quota checking disabled
	    OVR_PROT	: BOOLEAN;					--    override protection
	    OVR_OWNUIC	: BOOLEAN;					--    override volume ownership
	    NOINTERLOCK	: BOOLEAN;					--    access NOT VAXcluster interlocked
	    SHADOW_MBR	: BOOLEAN;					--    shadow set member
	    POOL_MBR	: BOOLEAN;					--    snapshot-capable disk pool member
	    FILLER_1	: UNSIGNED_5;
	end record;
 
	    for DAL_FLAGS_TYPE use 
		record
		    NOTFIRST_MNT	at 0 range 0 .. 0;
		    FOREIGN	at 0 range 1 .. 1;
		    GROUP	at 0 range 2 .. 2;
		    SYSTEM	at 0 range 3 .. 3;
		    WRITE	at 0 range 4 .. 4;
		    NOQUOTA	at 0 range 5 .. 5;
		    OVR_PROT	at 0 range 6 .. 6;
		    OVR_OWNUIC	at 0 range 7 .. 7;
		    NOINTERLOCK	at 1 range 0 .. 0;
		    SHADOW_MBR	at 1 range 1 .. 1;
		    POOL_MBR	at 1 range 2 .. 2;
		    FILLER_1	at 1 range 3 .. 7;
		end record;
	    for DAL_FLAGS_TYPE'SIZE use 16;
 
    DAL_FLAGS_TYPE_INIT : constant DAL_FLAGS_TYPE := 
	    (NOTFIRST_MNT	=> FALSE,
	    FOREIGN	=> FALSE,
	    GROUP	=> FALSE,
	    SYSTEM	=> FALSE,
	    WRITE	=> FALSE,
	    NOQUOTA	=> FALSE,
	    OVR_PROT	=> FALSE,
	    OVR_OWNUIC	=> FALSE,
	    NOINTERLOCK	=> FALSE,
	    SHADOW_MBR	=> FALSE,
	    POOL_MBR	=> FALSE,
	    FILLER_1	=> 0);
 
    type DAL_TYPE is
	record
	    FLAGS	: DAL_FLAGS_TYPE;				--  Device usage flags:
	    PROTECTION	: UNSIGNED_WORD;				--  Volume protection
	    OWNER_UIC	: UNSIGNED_LONGWORD;				--  Volume owner UIC
	    FIRST_MOUNTER_GROUP	: UNSIGNED_WORD;			--  UIC group of first mounter
	    FILLER_1	: UNSIGNED_WORD;				--  Not used
	    VOLID	: UNSIGNED_LONGWORD;				--  Volume identifier hash
	end record;
 
	    for DAL_TYPE use 
		record
		    FLAGS	at 0 range 0 .. 15;
		    PROTECTION	at 2 range 0 .. 15;
		    OWNER_UIC	at 4 range 0 .. 31;
		    FIRST_MOUNTER_GROUP	at 8 range 0 .. 15;
		    FILLER_1	at 10 range 0 .. 15;
		    VOLID	at 12 range 0 .. 31;
		end record;
	    for DAL_TYPE'SIZE use 128;
 
    DAL_TYPE_INIT : constant DAL_TYPE := 
	    (
	    FLAGS	=> DAL_FLAGS_TYPE_INIT,
	    PROTECTION	=> 0,
	    OWNER_UIC	=> 0,
	    FIRST_MOUNTER_GROUP	=> 0,
	    FILLER_1	=> 0,
	    VOLID	=> 0);
 
end DALDEF;