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9d9ff00631
factor common code between various implementations of ORB Controllers. [Imported from Perforce change 8607 at 2006-12-01 20:36:11] Subversion-branch: /trunk/polyorb Subversion-revision: 36184
147 lines
5.7 KiB
Ada
147 lines
5.7 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- POLYORB COMPONENTS --
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-- --
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-- P O L Y O R B . O R B _ C O N T R O L L E R . B A S I C --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2004 Free Software Foundation, Inc. --
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-- --
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-- PolyORB is free software; you can redistribute it and/or modify it --
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-- under terms of the GNU General Public License as published by the Free --
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-- Software Foundation; either version 2, or (at your option) any later --
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-- version. PolyORB is distributed in the hope that it will be useful, --
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN- --
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-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public --
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-- License for more details. You should have received a copy of the GNU --
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-- General Public License distributed with PolyORB; see file COPYING. If --
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-- not, write to the Free Software Foundation, 59 Temple Place - Suite 330, --
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-- Boston, MA 02111-1307, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- PolyORB is maintained by ACT Europe. --
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-- (email: sales@act-europe.fr) --
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-- --
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------------------------------------------------------------------------------
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-- Basic ORB Controller for PolyORB ORB main loop.
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-- It is an all-purpose ORB Controller implementation
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-- It supports:
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-- * multi-tasking and mono-tasking ORB
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-- * one asynchronous event monitor
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-- $Id$
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with PolyORB.Tasking.Condition_Variables;
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with PolyORB.Tasking.Idle_Tasks_Managers;
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with PolyORB.Tasking.Mutexes;
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package PolyORB.ORB_Controller.Basic is
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type ORB_Controller_Basic is new ORB_Controller with private;
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type ORB_Controller_Basic_Access is access all ORB_Controller_Basic'Class;
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procedure Register_Task
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(O : access ORB_Controller_Basic;
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TI : PTI.Task_Info_Access);
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procedure Unregister_Task
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(O : access ORB_Controller_Basic;
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TI : PTI.Task_Info_Access);
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procedure Notify_Event
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(O : access ORB_Controller_Basic;
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E : Event);
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procedure Schedule_Task
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(O : access ORB_Controller_Basic;
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TI : PTI.Task_Info_Access);
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procedure Disable_Polling (O : access ORB_Controller_Basic);
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procedure Enable_Polling (O : access ORB_Controller_Basic);
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procedure Enter_ORB_Critical_Section (O : access ORB_Controller_Basic);
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procedure Leave_ORB_Critical_Section (O : access ORB_Controller_Basic);
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function Is_A_Job_Pending
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(O : access ORB_Controller_Basic)
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return Boolean;
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function Get_Pending_Job
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(O : access ORB_Controller_Basic)
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return PJ.Job_Access;
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function Get_Monitors
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(O : access ORB_Controller_Basic)
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return Monitor_Array;
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type ORB_Controller_Basic_Factory is
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new ORB_Controller_Factory with private;
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function Create
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(OCF : access ORB_Controller_Basic_Factory)
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return ORB_Controller_Access;
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private
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package PTM renames PolyORB.Tasking.Mutexes;
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package PTCV renames PolyORB.Tasking.Condition_Variables;
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use PolyORB.Tasking.Idle_Tasks_Managers;
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type ORB_Controller_Basic is new ORB_Controller with record
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ORB_Lock : PTM.Mutex_Access;
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-- Mutex used to enforce ORB critical section
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Job_Queue : PJ.Job_Queue_Access;
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-- The queue of jobs to be processed by ORB tasks
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Monitors : Monitor_Array (1 .. 1) := (others => null);
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-- Monitors to be polled
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Idle_Tasks : Idle_Tasks_Manager_Access;
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------------------
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-- Blocked Task --
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------------------
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Blocked_Task_Info : PTI.Task_Info_Access;
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-- Under this ORB controller implementation, at most one task
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-- may enter blocked state. We store here its Task_Info.
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Polling_Abort_Counter : Natural := 0;
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-- Indicates number of tasks that requested abortion of polling.
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Polling_Completed : PTCV.Condition_Access;
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-- This condition is signalled after polling is completed. It
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-- is used by tasks for the polling task to release any
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-- reference to source list that is to be modified.
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Polling_Scheduled : Boolean := False;
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-- True iff a task will poll on AES
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Polling_Interval : Duration;
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Polling_Timeout : Duration;
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Counter : Natural := 0;
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end record;
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type ORB_Controller_Basic_Factory is
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new ORB_Controller_Factory with null record;
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OCF : constant ORB_Controller_Factory_Access
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:= new ORB_Controller_Basic_Factory;
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end PolyORB.ORB_Controller.Basic;
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