------------------------------------------------------------------------------
-- --
--- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
+-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- S Y S T E M . I N T E R R U P T S --
-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2004, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2008, Free Software Foundation, Inc. --
-- --
-- GNARL is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNARL; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- --
------------------------------------------------------------------------------
--- This is an OpenVMS/Alpha version of this package.
+-- This is an OpenVMS/Alpha version of this package
-- Invariants:
-- rendezvous.
with Ada.Task_Identification;
--- used for Task_ID type
-
-with Ada.Exceptions;
--- used for Raise_Exception
+with Ada.Unchecked_Conversion;
with System.Task_Primitives;
--- used for RTS_Lock
--- Self
-
with System.Interrupt_Management;
--- used for Reserve
--- Interrupt_ID
--- Interrupt_Mask
--- Abort_Task_Interrupt
with System.Interrupt_Management.Operations;
--- used for Thread_Block_Interrupt
--- Thread_Unblock_Interrupt
--- Install_Default_Action
--- Install_Ignore_Action
--- Copy_Interrupt_Mask
--- Set_Interrupt_Mask
--- Empty_Interrupt_Mask
--- Fill_Interrupt_Mask
--- Add_To_Interrupt_Mask
--- Delete_From_Interrupt_Mask
--- Interrupt_Wait
--- Interrupt_Self_Process
--- Get_Interrupt_Mask
--- Set_Interrupt_Mask
--- IS_Member
--- Environment_Mask
pragma Elaborate_All (System.Interrupt_Management.Operations);
with System.Task_Primitives.Operations;
--- used for Write_Lock
--- Unlock
--- Abort
--- Wakeup_Task
--- Sleep
--- Initialize_Lock
-
with System.Task_Primitives.Interrupt_Operations;
--- used for Set_Interrupt_ID
-
with System.Storage_Elements;
--- used for To_Address
--- To_Integer
--- Integer_Address
-
-with System.Tasking;
--- used for Task_ID
--- Task_Entry_Index
--- Null_Task
--- Self
--- Interrupt_Manager_ID
-
with System.Tasking.Utilities;
--- used for Make_Independent
with System.Tasking.Rendezvous;
--- used for Call_Simple
pragma Elaborate_All (System.Tasking.Rendezvous);
with System.Tasking.Initialization;
--- used for Defer_Abort
--- Undefer_Abort
-
with System.Parameters;
--- used for Single_Lock
-
-with Unchecked_Conversion;
package body System.Interrupts is
use Tasking;
use System.Parameters;
- use Ada.Exceptions;
package POP renames System.Task_Primitives.Operations;
package PIO renames System.Task_Primitives.Interrupt_Operations;
package IMNG renames System.Interrupt_Management;
package IMOP renames System.Interrupt_Management.Operations;
- function To_System is new Unchecked_Conversion
- (Ada.Task_Identification.Task_Id, Task_ID);
+ function To_System is new Ada.Unchecked_Conversion
+ (Ada.Task_Identification.Task_Id, Task_Id);
-----------------
-- Local Tasks --
-----------------
- -- WARNING: System.Tasking.Stages performs calls to this task
- -- with low-level constructs. Do not change this spec without synchro-
- -- nizing it.
+ -- WARNING: System.Tasking.Stages performs calls to this task with
+ -- low-level constructs. Do not change this spec without synchronizing it.
task Interrupt_Manager is
- entry Detach_Interrupt_Entries (T : Task_ID);
+ entry Detach_Interrupt_Entries (T : Task_Id);
entry Initialize (Mask : IMNG.Interrupt_Mask);
Static : Boolean);
entry Bind_Interrupt_To_Entry
- (T : Task_ID;
+ (T : Task_Id;
E : Task_Entry_Index;
Interrupt : Interrupt_ID);
task type Server_Task (Interrupt : Interrupt_ID) is
pragma Priority (System.Interrupt_Priority'Last);
- -- Note: the above pragma Priority is strictly speaking improper
- -- since it is outside the range of allowed priorities, but the
- -- compiler treats system units specially and does not apply
- -- this range checking rule to system units.
+ -- Note: the above pragma Priority is strictly speaking improper since
+ -- it is outside the range of allowed priorities, but the compiler
+ -- treats system units specially and does not apply this range checking
+ -- rule to system units.
end Server_Task;
type Server_Task_Access is access Server_Task;
- --------------------------------
- -- Local Types and Variables --
- --------------------------------
+ -------------------------------
+ -- Local Types and Variables --
+ -------------------------------
type Entry_Assoc is record
- T : Task_ID;
+ T : Task_Id;
E : Task_Entry_Index;
end record;
(others => (null, Static => False));
pragma Volatile_Components (User_Handler);
-- Holds the protected procedure handler (if any) and its Static
- -- information for each interrupt. A handler is a Static one if
- -- it is specified through the pragma Attach_Handler.
- -- Attach_Handler. Otherwise, not static)
+ -- information for each interrupt. A handler is a Static one if it is
+ -- specified through the pragma Attach_Handler. Attach_Handler. Otherwise,
+ -- not static)
User_Entry : array (Interrupt_ID'Range) of Entry_Assoc :=
(others => (T => Null_Task, E => Null_Task_Entry));
Blocked : constant array (Interrupt_ID'Range) of Boolean :=
(others => False);
--- ??? pragma Volatile_Components (Blocked);
+ -- ??? pragma Volatile_Components (Blocked);
-- True iff the corresponding interrupt is blocked in the process level
Ignored : array (Interrupt_ID'Range) of Boolean := (others => False);
pragma Volatile_Components (Ignored);
-- True iff the corresponding interrupt is blocked in the process level
- Last_Unblocker : constant array (Interrupt_ID'Range) of Task_ID :=
+ Last_Unblocker : constant array (Interrupt_ID'Range) of Task_Id :=
(others => Null_Task);
-- ??? pragma Volatile_Components (Last_Unblocker);
-- Holds the ID of the last Task which Unblocked this Interrupt.
-- It contains Null_Task if no tasks have ever requested the
-- Unblocking operation or the Interrupt is currently Blocked.
- Server_ID : array (Interrupt_ID'Range) of Task_ID :=
+ Server_ID : array (Interrupt_ID'Range) of Task_Id :=
(others => Null_Task);
pragma Atomic_Components (Server_ID);
- -- Holds the Task_ID of the Server_Task for each interrupt.
- -- Task_ID is needed to accomplish locking per Interrupt base. Also
- -- is needed to decide whether to create a new Server_Task.
+ -- Holds the Task_Id of the Server_Task for each interrupt. Task_Id is
+ -- needed to accomplish locking per Interrupt base. Also is needed to
+ -- decide whether to create a new Server_Task.
-- Type and Head, Tail of the list containing Registered Interrupt
- -- Handlers. These definitions are used to register the handlers
- -- specified by the pragma Interrupt_Handler.
+ -- Handlers. These definitions are used to register the handlers specified
+ -- by the pragma Interrupt_Handler.
type Registered_Handler;
type R_Link is access all Registered_Handler;
Registered_Handler_Tail : R_Link := null;
Access_Hold : Server_Task_Access;
- -- variable used to allocate Server_Task using "new".
+ -- variable used to allocate Server_Task using "new"
-----------------------
-- Local Subprograms --
procedure Register_Interrupt_Handler (Handler_Addr : System.Address) is
New_Node_Ptr : R_Link;
+
begin
-- This routine registers the Handler as usable for Dynamic
-- Interrupt Handler. Routines attaching and detaching Handler
Handler_Addr : System.Address;
end record;
- function To_Fat_Ptr is new Unchecked_Conversion
+ function To_Fat_Ptr is new Ada.Unchecked_Conversion
(Parameterless_Handler, Fat_Ptr);
Ptr : R_Link;
end loop;
return False;
-
end Is_Registered;
-----------------
function Is_Entry_Attached (Interrupt : Interrupt_ID) return Boolean is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
return User_Entry (Interrupt).T /= Null_Task;
function Is_Handler_Attached (Interrupt : Interrupt_ID) return Boolean is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
return User_Handler (Interrupt).H /= null;
function Is_Blocked (Interrupt : Interrupt_ID) return Boolean is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
return Blocked (Interrupt);
function Is_Ignored (Interrupt : Interrupt_ID) return Boolean is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
return Ignored (Interrupt);
-- Current_Handler --
---------------------
- function Current_Handler (Interrupt : Interrupt_ID)
- return Parameterless_Handler is
+ function Current_Handler
+ (Interrupt : Interrupt_ID) return Parameterless_Handler
+ is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
- -- ??? Since Parameterless_Handler is not Atomic, the
- -- current implementation is wrong. We need a new service in
- -- Interrupt_Manager to ensure atomicity.
+ -- ??? Since Parameterless_Handler is not Atomic, the current
+ -- implementation is wrong. We need a new service in Interrupt_Manager
+ -- to ensure atomicity.
return User_Handler (Interrupt).H;
end Current_Handler;
Static : Boolean := False) is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
Interrupt_Manager.Attach_Handler (New_Handler, Interrupt, Static);
-- Exchange_Handler --
----------------------
- -- Calling this procedure with New_Handler = null and Static = True
- -- means we want to detach the current handler regardless of the
- -- previous handler's binding status (ie. do not care if it is a
- -- dynamic or static handler).
+ -- Calling this procedure with New_Handler = null and Static = True means
+ -- we want to detach the current handler regardless of the previous
+ -- handler's binding status (ie. do not care if it is dynamic or static
+ -- handler).
- -- This option is needed so that during the finalization of a PO, we
- -- can detach handlers attached through pragma Attach_Handler.
+ -- This option is needed so that during the finalization of a PO, we can
+ -- detach handlers attached through pragma Attach_Handler.
procedure Exchange_Handler
(Old_Handler : out Parameterless_Handler;
New_Handler : Parameterless_Handler;
Interrupt : Interrupt_ID;
- Static : Boolean := False) is
+ Static : Boolean := False)
+ is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
Interrupt_Manager.Exchange_Handler
is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
Interrupt_Manager.Detach_Handler (Interrupt, Static);
function Reference (Interrupt : Interrupt_ID) return System.Address is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
return Storage_Elements.To_Address
-- already bound.
procedure Bind_Interrupt_To_Entry
- (T : Task_ID;
+ (T : Task_Id;
E : Task_Entry_Index;
Int_Ref : System.Address)
is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
Interrupt_Manager.Bind_Interrupt_To_Entry (T, E, Interrupt);
-- Detach_Interrupt_Entries --
------------------------------
- procedure Detach_Interrupt_Entries (T : Task_ID) is
+ procedure Detach_Interrupt_Entries (T : Task_Id) is
begin
Interrupt_Manager.Detach_Interrupt_Entries (T);
end Detach_Interrupt_Entries;
procedure Block_Interrupt (Interrupt : Interrupt_ID) is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
Interrupt_Manager.Block_Interrupt (Interrupt);
procedure Unblock_Interrupt (Interrupt : Interrupt_ID) is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
Interrupt_Manager.Unblock_Interrupt (Interrupt);
------------------
function Unblocked_By
- (Interrupt : Interrupt_ID) return System.Tasking.Task_ID is
+ (Interrupt : Interrupt_ID) return System.Tasking.Task_Id is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
return Last_Unblocker (Interrupt);
procedure Ignore_Interrupt (Interrupt : Interrupt_ID) is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
Interrupt_Manager.Ignore_Interrupt (Interrupt);
procedure Unignore_Interrupt (Interrupt : Interrupt_ID) is
begin
if Is_Reserved (Interrupt) then
- Raise_Exception (Program_Error'Identity, "Interrupt" &
- Interrupt_ID'Image (Interrupt) & " is reserved");
+ raise Program_Error with
+ "Interrupt" & Interrupt_ID'Image (Interrupt) & " is reserved";
end if;
Interrupt_Manager.Unignore_Interrupt (Interrupt);
task body Interrupt_Manager is
- ---------------------
- -- Local Routines --
- ---------------------
+ --------------------
+ -- Local Routines --
+ --------------------
procedure Unprotected_Exchange_Handler
(Old_Handler : out Parameterless_Handler;
is
begin
if User_Entry (Interrupt).T /= Null_Task then
+
-- In case we have an Interrupt Entry already installed.
-- raise a program error. (propagate it to the caller).
- Raise_Exception (Program_Error'Identity,
- "An interrupt is already installed");
+ raise Program_Error with "An interrupt is already installed";
end if;
- -- Note : A null handler with Static = True will
- -- pass the following check. That is the case when we want to
- -- Detach a handler regardless of the Static status
- -- of the current_Handler.
- -- We don't check anything if Restoration is True, since we
- -- may be detaching a static handler to restore a dynamic one.
+ -- Note: A null handler with Static=True will pass the following
+ -- check. That is the case when we want to Detach a handler
+ -- regardless of the Static status of the current_Handler. We don't
+ -- check anything if Restoration is True, since we may be detaching
+ -- a static handler to restore a dynamic one.
if not Restoration and then not Static
+
-- Tries to overwrite a static Interrupt Handler with a
-- dynamic Handler
or else not Is_Registered (New_Handler))
then
- Raise_Exception (Program_Error'Identity,
+ raise Program_Error with
"Trying to overwrite a static Interrupt Handler with a " &
- "dynamic Handler");
+ "dynamic Handler";
end if;
- -- The interrupt should no longer be ingnored if
- -- it was ever ignored.
+ -- The interrupt should no longer be ingnored if it was ever ignored
Ignored (Interrupt) := False;
if New_Handler = null then
- -- The null handler means we are detaching the handler.
+ -- The null handler means we are detaching the handler
User_Handler (Interrupt).Static := False;
end if;
-- Invoke a corresponding Server_Task if not yet created.
- -- Place Task_ID info in Server_ID array.
+ -- Place Task_Id info in Server_ID array.
if Server_ID (Interrupt) = Null_Task then
Access_Hold := new Server_Task (Interrupt);
is
begin
if User_Entry (Interrupt).T /= Null_Task then
+
-- In case we have an Interrupt Entry installed.
-- raise a program error. (propagate it to the caller).
- Raise_Exception (Program_Error'Identity,
- "An interrupt entry is already installed");
+ raise Program_Error with
+ "An interrupt entry is already installed";
end if;
-- Note : Static = True will pass the following check. That is the
-- Tries to detach a static Interrupt Handler.
-- raise a program error.
- Raise_Exception (Program_Error'Identity,
- "Trying to detach a static Interrupt Handler");
+ raise Program_Error with
+ "Trying to detach a static Interrupt Handler";
end if;
-- The interrupt should no longer be ignored if
-- Abort_Task_Interrupt is one of the Interrupt unmasked
-- in all tasks. We mask the Interrupt in this particular task
- -- so that "sigwait" is possible to catch an explicitely sent
+ -- so that "sigwait" is possible to catch an explicitly sent
-- Abort_Task_Interrupt from the Server_Tasks.
-- This sigwaiting is needed so that we make sure a Server_Task is
end Detach_Handler;
or accept Bind_Interrupt_To_Entry
- (T : Task_ID;
+ (T : Task_Id;
E : Task_Entry_Index;
Interrupt : Interrupt_ID)
do
if User_Handler (Interrupt).H /= null
or else User_Entry (Interrupt).T /= Null_Task
then
- Raise_Exception (Program_Error'Identity,
- "A binding for this interrupt is already present");
+ raise Program_Error with
+ "A binding for this interrupt is already present";
end if;
-- The interrupt should no longer be ingnored if
T.Interrupt_Entry := True;
-- Invoke a corresponding Server_Task if not yet created.
- -- Place Task_ID info in Server_ID array.
+ -- Place Task_Id info in Server_ID array.
if Server_ID (Interrupt) = Null_Task then
end if;
end Bind_Interrupt_To_Entry;
- or accept Detach_Interrupt_Entries (T : Task_ID)
+ or accept Detach_Interrupt_Entries (T : Task_Id)
do
for J in Interrupt_ID'Range loop
if not Is_Reserved (J) then
end if;
end loop;
- -- Indicate in ATCB that no Interrupt Entries are attached.
+ -- Indicate in ATCB that no Interrupt Entries are attached
T.Interrupt_Entry := False;
end Detach_Interrupt_Entries;
-----------------
task body Server_Task is
- Self_ID : constant Task_ID := Self;
+ Self_ID : constant Task_Id := Self;
Tmp_Handler : Parameterless_Handler;
- Tmp_ID : Task_ID;
+ Tmp_ID : Task_Id;
Tmp_Entry_Index : Task_Entry_Index;
Intwait_Mask : aliased IMNG.Interrupt_Mask;
System.Tasking.Utilities.Make_Independent;
- -- Install default action in system level.
+ -- Install default action in system level
IMOP.Install_Default_Action (IMNG.Interrupt_ID (Interrupt));
IMOP.Add_To_Interrupt_Mask
(Intwait_Mask'Access, IMNG.Interrupt_ID (Interrupt));
- -- Remember the Interrupt_ID for Abort_Task.
+ -- Remember the Interrupt_ID for Abort_Task
PIO.Set_Interrupt_ID (IMNG.Interrupt_ID (Interrupt), Self_ID);
if User_Handler (Interrupt).H /= null then
Tmp_Handler := User_Handler (Interrupt).H;
- -- RTS calls should not be made with self being locked.
+ -- RTS calls should not be made with self being locked
POP.Unlock (Self_ID);
Tmp_ID := User_Entry (Interrupt).T;
Tmp_Entry_Index := User_Entry (Interrupt).E;
- -- RTS calls should not be made with self being locked.
+ -- RTS calls should not be made with self being locked
POP.Unlock (Self_ID);
-------------------------------------
function Has_Interrupt_Or_Attach_Handler
- (Object : access Dynamic_Interrupt_Protection)
- return Boolean
+ (Object : access Dynamic_Interrupt_Protection) return Boolean
is
pragma Warnings (Off, Object);
return True;
end Has_Interrupt_Or_Attach_Handler;
- ----------------
- -- Finalize --
- ----------------
+ --------------
+ -- Finalize --
+ --------------
procedure Finalize (Object : in out Static_Interrupt_Protection) is
begin
-- ??? loop to be executed only when we're not doing library level
-- finalization, since in this case all interrupt tasks are gone.
+
if not Interrupt_Manager'Terminated then
for N in reverse Object.Previous_Handlers'Range loop
Interrupt_Manager.Attach_Handler
-------------------------------------
function Has_Interrupt_Or_Attach_Handler
- (Object : access Static_Interrupt_Protection)
- return Boolean
+ (Object : access Static_Interrupt_Protection) return Boolean
is
pragma Warnings (Off, Object);
begin
end loop;
end Install_Handlers;
+ ---------------------------------
+ -- Install_Restricted_Handlers --
+ ---------------------------------
+
+ procedure Install_Restricted_Handlers (Handlers : New_Handler_Array) is
+ begin
+ for N in Handlers'Range loop
+ Attach_Handler (Handlers (N).Handler, Handlers (N).Interrupt, True);
+ end loop;
+ end Install_Restricted_Handlers;
+
-- Elaboration code for package System.Interrupts
-begin
- -- Get Interrupt_Manager's ID so that Abort_Interrupt can be sent.
+begin
+ -- Get Interrupt_Manager's ID so that Abort_Interrupt can be sent
Interrupt_Manager_ID := To_System (Interrupt_Manager'Identity);
- -- During the elaboration of this package body we want RTS to
- -- inherit the interrupt mask from the Environment Task.
+ -- During the elaboration of this package body we want RTS to inherit the
+ -- interrupt mask from the Environment Task.
- -- The Environment Task should have gotten its mask from
- -- the enclosing process during the RTS start up. (See
- -- in s-inmaop.adb). Pass the Interrupt_Mask of the Environment
- -- task to the Interrupt_Manager.
+ -- The Environment Task should have gotten its mask from the enclosing
+ -- process during the RTS start up. (See in s-inmaop.adb). Pass the
+ -- Interrupt_Mask of the Environment task to the Interrupt_Manager.
- -- Note : At this point we know that all tasks (including
- -- RTS internal servers) are masked for non-reserved signals
- -- (see s-taprop.adb). Only the Interrupt_Manager will have
- -- masks set up differently inheriting the original Environment
- -- Task's mask.
+ -- Note : At this point we know that all tasks (including RTS internal
+ -- servers) are masked for non-reserved signals (see s-taprop.adb). Only
+ -- the Interrupt_Manager will have masks set up differently inheriting the
+ -- original Environment Task's mask.
Interrupt_Manager.Initialize (IMOP.Environment_Mask);
end System.Interrupts;
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