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|
------------------------------------------------------------------------------
-- --
-- POLYORB COMPONENTS --
-- --
-- COSNOTIFYCOMM.SEQUENCEPULLCONSUMER.IMPL --
-- --
-- B o d y --
-- --
-- Copyright (C) 2003-2013, Free Software Foundation, Inc. --
-- --
-- This 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 3, or (at your option) any later ver- --
-- sion. This software is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN- --
-- TABILITY 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 and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- PolyORB is maintained by AdaCore --
-- (email: sales@adacore.com) --
-- --
------------------------------------------------------------------------------
with CosEventChannelAdmin.Helper;
with CosEventComm.Helper;
with PolyORB.CORBA_P.Server_Tools;
with PolyORB.Log;
with PolyORB.Tasking.Mutexes;
with CosNotifyComm.SequencePullConsumer.Skel;
pragma Warnings (Off, CosNotifyComm.SequencePullConsumer.Skel);
package body CosNotifyComm.SequencePullConsumer.Impl is
use PolyORB.CORBA_P.Server_Tools;
use PolyORB.Tasking.Mutexes;
use PolyORB.Log;
package L is new PolyORB.Log.Facility_Log ("sequencepullconsumer");
procedure O (Message : Standard.String; Level : Log_Level := Debug)
renames L.Output;
function C (Level : Log_Level := Debug) return Boolean
renames L.Enabled;
pragma Unreferenced (C); -- For conditional pragma Debug
type Sequence_Pull_Consumer_Record is record
This : Object_Ptr;
Peer : CosNotifyChannelAdmin.SequenceProxyPullSupplier.Ref;
end record;
---------------------------
-- Ensure_Initialization --
---------------------------
procedure Ensure_Initialization;
pragma Inline (Ensure_Initialization);
-- Ensure that the Mutexes are initialized
T_Initialized : Boolean := False;
Self_Mutex : Mutex_Access;
procedure Ensure_Initialization is
begin
if not T_Initialized then
Create (Self_Mutex);
T_Initialized := True;
end if;
end Ensure_Initialization;
---------------------------------------
-- Disconnect_Sequence_Pull_Consumer --
---------------------------------------
procedure Disconnect_Sequence_Pull_Consumer
(Self : access Object)
is
Peer : CosNotifyChannelAdmin.SequenceProxyPullSupplier.Ref;
Nil_Ref : CosNotifyChannelAdmin.SequenceProxyPullSupplier.Ref;
begin
Ensure_Initialization;
pragma Debug (O ("disconnect sequencepullconsumer"));
Enter (Self_Mutex);
Peer := Self.X.Peer;
Self.X.Peer := Nil_Ref;
Leave (Self_Mutex);
if not CosNotifyChannelAdmin.SequenceProxyPullSupplier.Is_Nil (Peer) then
CosNotifyChannelAdmin.SequenceProxyPullSupplier.
disconnect_sequence_pull_supplier (Peer);
end if;
end Disconnect_Sequence_Pull_Consumer;
------------------
-- Offer_Change --
------------------
procedure Offer_Change
(Self : access Object;
Added : CosNotification.EventTypeSeq;
Removed : CosNotification.EventTypeSeq)
is
pragma Warnings (Off); -- WAG:3.14
pragma Unreferenced (Self, Added, Removed);
pragma Warnings (On); -- WAG:3.14
begin
Ensure_Initialization;
pragma Debug (O ("offer_change in sequencepullconsumer"));
Enter (Self_Mutex);
Leave (Self_Mutex);
end Offer_Change;
------------------------------------------
-- Connect_Sequence_Proxy_Pull_Supplier --
------------------------------------------
procedure Connect_Sequence_Proxy_Pull_Supplier
(Self : access Object;
Proxy : CosNotifyChannelAdmin.SequenceProxyPullSupplier.Ref)
is
My_Ref : SequencePullConsumer.Ref;
begin
Ensure_Initialization;
pragma Debug
(O ("connect_sequence_proxy_pull_supplier in sequencepullconsumer"));
Enter (Self_Mutex);
if not CosNotifyChannelAdmin.SequenceProxyPullSupplier.Is_Nil
(Self.X.Peer)
then
Leave (Self_Mutex);
CosEventChannelAdmin.Helper.Raise_AlreadyConnected
((CORBA.IDL_Exception_Members with null record));
end if;
Self.X.Peer := Proxy;
Servant_To_Reference (PortableServer.Servant (Self.X.This), My_Ref);
Leave (Self_Mutex);
CosNotifyChannelAdmin.SequenceProxyPullSupplier.
connect_sequence_pull_consumer (Proxy, My_Ref);
end Connect_Sequence_Proxy_Pull_Supplier;
------------
-- Create --
------------
function Create
return Object_Ptr
is
Consumer : Object_Ptr;
My_Ref : SequencePullConsumer.Ref;
Peer_Ref : CosNotifyChannelAdmin.SequenceProxyPullSupplier.Ref;
begin
pragma Debug (O ("create sequencepullconsumer"));
Consumer := new Object;
Consumer.X := new Sequence_Pull_Consumer_Record;
Consumer.X.This := Consumer;
Consumer.X.Peer := Peer_Ref;
Initiate_Servant (PortableServer.Servant (Consumer), My_Ref);
return Consumer;
end Create;
----------
-- Pull --
----------
function Pull
(Self : access Object;
Max_Number : CORBA.Long)
return CosNotification.EventBatch
is
Peer : CosNotifyChannelAdmin.SequenceProxyPullSupplier.Ref;
begin
Ensure_Initialization;
pragma Debug (O ("pull sequence of structured events " &
"from sequencepullconsumer"));
Enter (Self_Mutex);
Peer := Self.X.Peer;
Leave (Self_Mutex);
if CosNotifyChannelAdmin.SequenceProxyPullSupplier.Is_Nil (Peer) then
CosEventComm.Helper.Raise_Disconnected
((CORBA.IDL_Exception_Members with null record));
end if;
return CosNotifyChannelAdmin.SequenceProxyPullSupplier.
pull_structured_events (Peer, Max_Number);
end Pull;
--------------
-- Try_Pull --
--------------
procedure Try_Pull
(Self : access Object;
Max_Number : CORBA.Long;
Done : out CORBA.Boolean;
Returns : out CosNotification.EventBatch)
is
Peer : CosNotifyChannelAdmin.SequenceProxyPullSupplier.Ref;
begin
pragma Debug
(O ("try to pull sequence of structured events " &
"from sequencepullconsumer"));
Ensure_Initialization;
Enter (Self_Mutex);
Peer := Self.X.Peer;
Leave (Self_Mutex);
if CosNotifyChannelAdmin.SequenceProxyPullSupplier.Is_Nil (Peer) then
CosEventComm.Helper.Raise_Disconnected
((CORBA.IDL_Exception_Members with null record));
end if;
CosNotifyChannelAdmin.SequenceProxyPullSupplier.
try_pull_structured_events (Peer, Max_Number, Done, Returns);
end Try_Pull;
end CosNotifyComm.SequencePullConsumer.Impl;
|
