--********************************************************************************************************************
-- Created:  9-Nov-2023 12:07:44 by OpenVMS SDL V3.7       
-- Source:  04-FEB-2019 16:17:34 $1$DGA8345:[LIB_ADA.LIS]SCHDEF.SDL;1 
--********************************************************************************************************************
with SYSTEM; use SYSTEM;
with STARLET; use STARLET;
with CONDITION_HANDLING; use CONDITION_HANDLING;
 
package SCHDEF is
 
--  module $SCHDEF
 
    SCH_C_SWPPIX		: constant := 1;			--  PIX for swapper process
    SCH_V_SIP			: constant := 0;			--  SWAP IN PROGRESS FLAG
    SCH_M_SIP			: constant := 1;			--  SWAP IN PROGRESS MASK
    SCH_V_TCD			: constant := 1;			--  MPL threshold checking disabled
    SCH_M_TCD			: constant := 2;			--  MPL threshold checking disabled mask
    SCH_V_MPW			: constant := 2;			--  Modify page writer active
    SCH_M_MPW			: constant := 4;			--  Modify page writer active mask
    SCH_V_REORD			: constant := 0;			--  OSWPSCHED queue reordering occured
 
-- Verified for x86 port - Clair Grant
 
    SCH_C_ASN_MIN		: constant := 0;			--  Minimum RID for process space
    SCH_M_DEFERRED_AST_OFF	: constant := 16#00000001#;
    SCH_M_QUEUE_OPT_OFF		: constant := 16#00000002#;
    SCH_M_SPL_HTHREAD_OPT_OFF	: constant := 16#00000004#;
    SCH_M_PC_SAMPLING_OFF	: constant := 16#00000008#;
    SCH_M_PROCESS_IDLE_CW_LOCKS	: constant := 16#00000010#;
    SCH_M_MTX_HERD_OPT_OFF	: constant := 16#00000020#;
    SCH_M_SPL_PC_SAMPLING_ON	: constant := 16#00000040#;
    SCH_M_SPL_PC_CPUID_ON	: constant := 16#00000080#;
    SCH_M_FRKSPL		: constant := 16#00000100#;
 
    type SCHED_FLAGS_TYPE is						--  SCHED Control Flags
	record
	    DEFERRED_AST_OFF	: BOOLEAN;				--  Turn off AST Deferal optimizaton (V84R on)
	    QUEUE_OPT_OFF	: BOOLEAN;				--  Turn off AST queue optimization  (V84R on)
	    SPL_HTHREAD_OPT_OFF	: BOOLEAN;				--  Turn off SPL Hyper Thread Optimization (V84R POULSON on)
	    PC_SAMPLING_OFF	: BOOLEAN;				--  Turn off PC Sampling             (V84R POULSON on)
	    PROCESS_IDLE_CW_LOCKS	: BOOLEAN;			--  Enable XFC timeout on CW mode locks (V7.3-2 - POULSON on)
	    MTX_HERD_OPT_OFF	: BOOLEAN;				--  Turn off Mutex Herd handling Algorithm (V83R - POULSON on)
	    SPL_PC_SAMPLING_ON	: BOOLEAN;				--  Used by SPINLOCKS (V84 on)
	    SPL_PC_CPUID_ON	: BOOLEAN;				--  Used by SPINLOCKS (V84 on, was PERSONA_SECAUDIT in V83R - V83-1H1R)
	    FRKSPL	: BOOLEAN;					--  Used by FORKCNTRL (V83R, V84R, then TEWKSBURY on)
	    FILLER_1	: UNSIGNED_23;
	end record;
 
	    for SCHED_FLAGS_TYPE use 
		record
		    DEFERRED_AST_OFF	at 0 range 0 .. 0;
		    QUEUE_OPT_OFF	at 0 range 1 .. 1;
		    SPL_HTHREAD_OPT_OFF	at 0 range 2 .. 2;
		    PC_SAMPLING_OFF	at 0 range 3 .. 3;
		    PROCESS_IDLE_CW_LOCKS	at 0 range 4 .. 4;
		    MTX_HERD_OPT_OFF	at 0 range 5 .. 5;
		    SPL_PC_SAMPLING_ON	at 0 range 6 .. 6;
		    SPL_PC_CPUID_ON	at 0 range 7 .. 7;
		    FRKSPL	at 1 range 0 .. 0;
		    FILLER_1	at 1 range 1 .. 23;
		end record;
	    for SCHED_FLAGS_TYPE'SIZE use 32;
 
    SCHED_FLAGS_TYPE_INIT : constant SCHED_FLAGS_TYPE := 
	    (DEFERRED_AST_OFF	=> FALSE,
	    QUEUE_OPT_OFF	=> FALSE,
	    SPL_HTHREAD_OPT_OFF	=> FALSE,
	    PC_SAMPLING_OFF	=> FALSE,
	    PROCESS_IDLE_CW_LOCKS	=> FALSE,
	    MTX_HERD_OPT_OFF	=> FALSE,
	    SPL_PC_SAMPLING_ON	=> FALSE,
	    SPL_PC_CPUID_ON	=> FALSE,
	    FRKSPL	=> FALSE,
	    FILLER_1	=> 0);
 
    type SCHED_FLAGS_TYPE is
	record
	    SCHED_FLAGS	: SCHED_FLAGS_TYPE;				--  SCHED Control Flags
	end record;
 
	    for SCHED_FLAGS_TYPE use 
		record
		    SCHED_FLAGS	at 0 range 0 .. 31;
		end record;
	    for SCHED_FLAGS_TYPE'SIZE use 32;
 
    SCHED_FLAGS_TYPE_INIT : constant SCHED_FLAGS_TYPE := 
	    (
	    SCHED_FLAGS	=> SCHED_FLAGS_TYPE_INIT
	    );
 
end SCHDEF;