mirror of
https://github.com/AdaCore/PolyORB.git
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236 lines
8.2 KiB
Ada
236 lines
8.2 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- POLYORB COMPONENTS --
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-- --
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-- COSNOTIFYCOMM.STRUCTUREDPULLCONSUMER.IMPL --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 2003-2013, Free Software Foundation, Inc. --
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-- --
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-- This is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. This software 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. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- PolyORB is maintained by AdaCore --
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-- (email: sales@adacore.com) --
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-- --
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------------------------------------------------------------------------------
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with CosEventChannelAdmin.Helper;
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with CosEventComm.Helper;
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with PolyORB.CORBA_P.Server_Tools;
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with PolyORB.Log;
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with PolyORB.Tasking.Mutexes;
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with CosNotifyComm.StructuredPullConsumer.Skel;
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pragma Warnings (Off, CosNotifyComm.StructuredPullConsumer.Skel);
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package body CosNotifyComm.StructuredPullConsumer.Impl is
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use PolyORB.CORBA_P.Server_Tools;
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use PolyORB.Tasking.Mutexes;
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use PolyORB.Log;
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package L is new PolyORB.Log.Facility_Log ("structuredpullconsumer");
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procedure O (Message : Standard.String; Level : Log_Level := Debug)
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renames L.Output;
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function C (Level : Log_Level := Debug) return Boolean
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renames L.Enabled;
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pragma Unreferenced (C); -- For conditional pragma Debug
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type Structured_Pull_Consumer_Record is record
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This : Object_Ptr;
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Peer : CosNotifyChannelAdmin.StructuredProxyPullSupplier.Ref;
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end record;
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---------------------------
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-- Ensure_Initialization --
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---------------------------
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procedure Ensure_Initialization;
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pragma Inline (Ensure_Initialization);
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-- Ensure that the Mutexes are initialized
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T_Initialized : Boolean := False;
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Self_Mutex : Mutex_Access;
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procedure Ensure_Initialization is
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begin
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if not T_Initialized then
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Create (Self_Mutex);
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T_Initialized := True;
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end if;
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end Ensure_Initialization;
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-----------------------------------------
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-- Disconnect_Structured_Pull_Consumer --
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-----------------------------------------
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procedure Disconnect_Structured_Pull_Consumer
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(Self : access Object)
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is
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Peer : CosNotifyChannelAdmin.StructuredProxyPullSupplier.Ref;
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Nil_Ref : CosNotifyChannelAdmin.StructuredProxyPullSupplier.Ref;
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begin
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Ensure_Initialization;
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pragma Debug (O ("disconnect structuredpullconsumer"));
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Enter (Self_Mutex);
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Peer := Self.X.Peer;
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Self.X.Peer := Nil_Ref;
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Leave (Self_Mutex);
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if not CosNotifyChannelAdmin.StructuredProxyPullSupplier.Is_Nil
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(Peer)
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then
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CosNotifyChannelAdmin.StructuredProxyPullSupplier.
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disconnect_structured_pull_supplier (Peer);
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end if;
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end Disconnect_Structured_Pull_Consumer;
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------------------
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-- Offer_Change --
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------------------
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procedure Offer_Change
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(Self : access Object;
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Added : CosNotification.EventTypeSeq;
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Removed : CosNotification.EventTypeSeq)
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is
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pragma Warnings (Off); -- WAG:3.14
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pragma Unreferenced (Self, Added, Removed);
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pragma Warnings (On); -- WAG:3.14
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begin
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Ensure_Initialization;
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pragma Debug (O ("offer_change in structuredpullconsumer"));
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Enter (Self_Mutex);
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Leave (Self_Mutex);
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end Offer_Change;
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--------------------------------------------
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-- Connect_Structured_Proxy_Pull_Supplier --
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--------------------------------------------
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procedure Connect_Structured_Proxy_Pull_Supplier
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(Self : access Object;
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Proxy : CosNotifyChannelAdmin.StructuredProxyPullSupplier.Ref)
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is
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My_Ref : StructuredPullConsumer.Ref;
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begin
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Ensure_Initialization;
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pragma Debug
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(O ("connect_structured_proxy_pull_supplier in structuredpullconsumer"));
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Enter (Self_Mutex);
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if not CosNotifyChannelAdmin.StructuredProxyPullSupplier.Is_Nil
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(Self.X.Peer)
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then
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Leave (Self_Mutex);
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CosEventChannelAdmin.Helper.Raise_AlreadyConnected
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((CORBA.IDL_Exception_Members with null record));
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end if;
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Self.X.Peer := Proxy;
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Servant_To_Reference (PortableServer.Servant (Self.X.This), My_Ref);
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Leave (Self_Mutex);
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CosNotifyChannelAdmin.StructuredProxyPullSupplier.
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connect_structured_pull_consumer (Proxy, My_Ref);
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end Connect_Structured_Proxy_Pull_Supplier;
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------------
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-- Create --
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------------
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function Create
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return Object_Ptr
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is
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Consumer : Object_Ptr;
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My_Ref : StructuredPullConsumer.Ref;
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Peer_Ref : CosNotifyChannelAdmin.StructuredProxyPullSupplier.Ref;
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begin
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pragma Debug (O ("create structuredpullconsumer"));
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Consumer := new Object;
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Consumer.X := new Structured_Pull_Consumer_Record;
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Consumer.X.This := Consumer;
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Consumer.X.Peer := Peer_Ref;
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Initiate_Servant (PortableServer.Servant (Consumer), My_Ref);
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return Consumer;
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end Create;
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----------
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-- Pull --
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----------
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function Pull
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(Self : access Object)
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return CosNotification.StructuredEvent
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is
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Peer : CosNotifyChannelAdmin.StructuredProxyPullSupplier.Ref;
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begin
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Ensure_Initialization;
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pragma Debug (O ("pull structured event from structuredpullconsumer"));
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Enter (Self_Mutex);
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Peer := Self.X.Peer;
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Leave (Self_Mutex);
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if CosNotifyChannelAdmin.StructuredProxyPullSupplier.Is_Nil (Peer) then
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CosEventComm.Helper.Raise_Disconnected
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((CORBA.IDL_Exception_Members with null record));
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end if;
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return CosNotifyChannelAdmin.StructuredProxyPullSupplier.
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pull_structured_event (Peer);
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end Pull;
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--------------
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-- Try_Pull --
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--------------
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procedure Try_Pull
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(Self : access Object;
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Done : out CORBA.Boolean;
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Returns : out CosNotification.StructuredEvent)
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is
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Peer : CosNotifyChannelAdmin.StructuredProxyPullSupplier.Ref;
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begin
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pragma Debug
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(O ("try to pull structured event from structuredpullconsumer"));
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Ensure_Initialization;
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Enter (Self_Mutex);
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Peer := Self.X.Peer;
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Leave (Self_Mutex);
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if CosNotifyChannelAdmin.StructuredProxyPullSupplier.Is_Nil (Peer) then
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CosEventComm.Helper.Raise_Disconnected
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((CORBA.IDL_Exception_Members with null record));
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end if;
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CosNotifyChannelAdmin.StructuredProxyPullSupplier.
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try_pull_structured_event (Peer, Done, Returns);
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end Try_Pull;
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end CosNotifyComm.StructuredPullConsumer.Impl;
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