+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
--- --
--- S Y S T E M . T A S K _ P R I M I T I V E S . O P E R A T I O N S --
--- --
--- B o d y --
--- --
--- $Revision: 1.1 $
--- --
--- Copyright (C) 1991-2001, Florida State University --
--- --
--- 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- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
--- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- 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. --
--- --
--- 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 unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
--- --
--- GNARL was developed by the GNARL team at Florida State University. It is --
--- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
--- State University (http://www.gnat.com). --
--- --
-------------------------------------------------------------------------------
-
--- This is a no tasking version of this package
-
--- This package contains all the GNULL primitives that interface directly
--- with the underlying OS.
-
-pragma Polling (Off);
--- Turn off polling, we do not want ATC polling to take place during
--- tasking operations. It causes infinite loops and other problems.
-
-with System.Tasking;
--- used for Ada_Task_Control_Block
--- Task_ID
-
-with System.OS_Primitives;
--- used for Delay_Modes
-
-with System.Error_Reporting;
--- used for Shutdown
-
-package body System.Task_Primitives.Operations is
-
- use System.Tasking;
- use System.Parameters;
- use System.OS_Primitives;
-
- -------------------
- -- Stack_Guard --
- -------------------
-
- procedure Stack_Guard (T : ST.Task_ID; On : Boolean) is
- begin
- null;
- end Stack_Guard;
-
- --------------------
- -- Get_Thread_Id --
- --------------------
-
- function Get_Thread_Id (T : ST.Task_ID) return OSI.Thread_Id is
- begin
- return OSI.Thread_Id (T.Common.LL.Thread);
- end Get_Thread_Id;
-
- ----------
- -- Self --
- ----------
-
- function Self return Task_ID is
- begin
- return Null_Task;
- end Self;
-
- ---------------------
- -- Initialize_Lock --
- ---------------------
-
- procedure Initialize_Lock
- (Prio : System.Any_Priority;
- L : access Lock)
- is
- begin
- null;
- end Initialize_Lock;
-
- procedure Initialize_Lock (L : access RTS_Lock; Level : Lock_Level) is
- begin
- null;
- end Initialize_Lock;
-
- -------------------
- -- Finalize_Lock --
- -------------------
-
- procedure Finalize_Lock (L : access Lock) is
- begin
- null;
- end Finalize_Lock;
-
- procedure Finalize_Lock (L : access RTS_Lock) is
- begin
- null;
- end Finalize_Lock;
-
- ----------------
- -- Write_Lock --
- ----------------
-
- procedure Write_Lock (L : access Lock; Ceiling_Violation : out Boolean) is
- begin
- Ceiling_Violation := False;
- end Write_Lock;
-
- procedure Write_Lock (L : access RTS_Lock) is
- begin
- null;
- end Write_Lock;
-
- procedure Write_Lock (T : Task_ID) is
- begin
- null;
- end Write_Lock;
-
- ---------------
- -- Read_Lock --
- ---------------
-
- procedure Read_Lock (L : access Lock; Ceiling_Violation : out Boolean) is
- begin
- Ceiling_Violation := False;
- end Read_Lock;
-
- ------------
- -- Unlock --
- ------------
-
- procedure Unlock (L : access Lock) is
- begin
- null;
- end Unlock;
-
- procedure Unlock (L : access RTS_Lock) is
- begin
- null;
- end Unlock;
-
- procedure Unlock (T : Task_ID) is
- begin
- null;
- end Unlock;
-
- -------------
- -- Sleep --
- -------------
-
- procedure Sleep (Self_ID : Task_ID;
- Reason : System.Tasking.Task_States) is
- begin
- null;
- end Sleep;
-
- -----------------
- -- Timed_Sleep --
- -----------------
-
- procedure Timed_Sleep
- (Self_ID : Task_ID;
- Time : Duration;
- Mode : ST.Delay_Modes;
- Reason : System.Tasking.Task_States;
- Timedout : out Boolean;
- Yielded : out Boolean) is
- begin
- Timedout := False;
- Yielded := False;
- end Timed_Sleep;
-
- -----------------
- -- Timed_Delay --
- -----------------
-
- procedure Timed_Delay
- (Self_ID : Task_ID;
- Time : Duration;
- Mode : ST.Delay_Modes)
- is
- Rel_Time : Duration;
-
- procedure sleep (How_Long : Natural);
- pragma Import (C, sleep, "sleep");
-
- begin
- if Mode = Relative then
- Rel_Time := Time;
- else
- Rel_Time := Time - Monotonic_Clock;
- end if;
-
- if Rel_Time > 0.0 then
- sleep (Natural (Rel_Time));
- end if;
- end Timed_Delay;
-
- ---------------------
- -- Monotonic_Clock --
- ---------------------
-
- function Monotonic_Clock return Duration is
- begin
- return 0.0;
- end Monotonic_Clock;
-
- -------------------
- -- RT_Resolution --
- -------------------
-
- function RT_Resolution return Duration is
- begin
- return 10#1.0#E-6;
- end RT_Resolution;
-
- ------------
- -- Wakeup --
- ------------
-
- procedure Wakeup (T : Task_ID; Reason : System.Tasking.Task_States) is
- begin
- null;
- end Wakeup;
-
- ------------------
- -- Set_Priority --
- ------------------
-
- procedure Set_Priority
- (T : Task_ID;
- Prio : System.Any_Priority;
- Loss_Of_Inheritance : Boolean := False) is
- begin
- null;
- end Set_Priority;
-
- ------------------
- -- Get_Priority --
- ------------------
-
- function Get_Priority (T : Task_ID) return System.Any_Priority is
- begin
- return 0;
- end Get_Priority;
-
- ----------------
- -- Enter_Task --
- ----------------
-
- procedure Enter_Task (Self_ID : Task_ID) is
- begin
- null;
- end Enter_Task;
-
- --------------
- -- New_ATCB --
- --------------
-
- function New_ATCB (Entry_Num : Task_Entry_Index) return Task_ID is
- begin
- return new Ada_Task_Control_Block (Entry_Num);
- end New_ATCB;
-
- ----------------------
- -- Initialize_TCB --
- ----------------------
-
- procedure Initialize_TCB (Self_ID : Task_ID; Succeeded : out Boolean) is
- begin
- Succeeded := False;
- end Initialize_TCB;
-
- -----------------
- -- Create_Task --
- -----------------
-
- procedure Create_Task
- (T : Task_ID;
- Wrapper : System.Address;
- Stack_Size : System.Parameters.Size_Type;
- Priority : System.Any_Priority;
- Succeeded : out Boolean)
- is
- begin
- Succeeded := False;
- end Create_Task;
-
- ------------------
- -- Finalize_TCB --
- ------------------
-
- procedure Finalize_TCB (T : Task_ID) is
- begin
- null;
- end Finalize_TCB;
-
- ---------------
- -- Exit_Task --
- ---------------
-
- procedure Exit_Task is
- begin
- null;
- end Exit_Task;
-
- ----------------
- -- Abort_Task --
- ----------------
-
- procedure Abort_Task (T : Task_ID) is
- begin
- null;
- end Abort_Task;
-
- -----------
- -- Yield --
- -----------
-
- procedure Yield (Do_Yield : Boolean := True) is
- begin
- null;
- end Yield;
-
- ----------------
- -- Check_Exit --
- ----------------
-
- -- Dummy versions. The only currently working versions is for solaris
- -- (native).
-
- function Check_Exit (Self_ID : ST.Task_ID) return Boolean is
- begin
- return True;
- end Check_Exit;
-
- --------------------
- -- Check_No_Locks --
- --------------------
-
- function Check_No_Locks (Self_ID : ST.Task_ID) return Boolean is
- begin
- return True;
- end Check_No_Locks;
-
- ----------------------
- -- Environment_Task --
- ----------------------
-
- function Environment_Task return Task_ID is
- begin
- return null;
- end Environment_Task;
-
- -------------------------
- -- Lock_All_Tasks_List --
- -------------------------
-
- procedure Lock_All_Tasks_List is
- begin
- null;
- end Lock_All_Tasks_List;
-
- ---------------------------
- -- Unlock_All_Tasks_List --
- ---------------------------
-
- procedure Unlock_All_Tasks_List is
- begin
- null;
- end Unlock_All_Tasks_List;
-
- ------------------
- -- Suspend_Task --
- ------------------
-
- function Suspend_Task
- (T : ST.Task_ID;
- Thread_Self : OSI.Thread_Id) return Boolean is
- begin
- return False;
- end Suspend_Task;
-
- -----------------
- -- Resume_Task --
- -----------------
-
- function Resume_Task
- (T : ST.Task_ID;
- Thread_Self : OSI.Thread_Id) return Boolean is
- begin
- return False;
- end Resume_Task;
-
- ----------------
- -- Initialize --
- ----------------
-
- procedure Initialize (Environment_Task : Task_ID) is
- begin
- null;
- end Initialize;
-
- No_Tasking : Boolean;
-
-begin
-
- -- Can't raise an exception because target independent packages try to
- -- do an Abort_Defer, which gets a memory fault.
-
- No_Tasking :=
- System.Error_Reporting.Shutdown
- ("Tasking not implemented on this configuration");
-end System.Task_Primitives.Operations;
projects / msp430-gcc.git / blobdiff