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-rw-r--r--cpp/src/qpid/cluster/ChannelManager.cpp85
1 files changed, 0 insertions, 85 deletions
diff --git a/cpp/src/qpid/cluster/ChannelManager.cpp b/cpp/src/qpid/cluster/ChannelManager.cpp
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--- a/cpp/src/qpid/cluster/ChannelManager.cpp
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-/*
- *
- * Copyright (c) 2006 The Apache Software Foundation
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-#include "qpid/log/Statement.h"
-#include "qpid/framing/amqp_types.h"
-#include "qpid/framing/AMQFrame.h"
-#include "ChannelManager.h"
-
-namespace qpid {
-namespace cluster {
-
-using namespace framing;
-
-/** Handler to multicast to the cluster */
-struct ClusterHandler : public FrameHandler {
-
- ClusterHandler(FrameHandler::Chain next, ChannelId bitmask_)
- : FrameHandler(next), bitmask(bitmask_) {}
-
- void handle(AMQFrame& frame) {
- frame.channel |= bitmask; // Mark the frame
- nextHandler(frame);
- // TODO aconway 2007-06-28: Right now everything is backed up
- // via multicast. When we have point-to-point backups this
- // function must determine where each frame should be sent: to
- // multicast or only to specific backup(s) via AMQP.
- }
-
- ChannelId bitmask;
-};
-
-ChannelManager::ChannelManager(FrameHandler::Chain mcast) : mcastOut(mcast){}
-
-void ChannelManager::update(ChannelId id, FrameHandler::Chains& chains) {
- // Store the original cluster chains for the channel.
- channels[id] = chains;
-
- // Replace chains with multicast-to-cluster handlers that mark the
- // high-bit of the channel ID on outgoing frames so we can tell
- // them from incoming frames in handle()
- //
- // When handle() receives the frames from the cluster it
- // will forward them to the original channel chains stored in
- // channels map.
- //
- chains.in = make_shared_ptr(new ClusterHandler(mcastOut, 0));
- chains.out= make_shared_ptr(new ClusterHandler(mcastOut, CHANNEL_HIGH_BIT));
-}
-
-void ChannelManager::handle(AMQFrame& frame) {
- bool isOut = frame.channel | CHANNEL_HIGH_BIT;
- frame.channel |= ~CHANNEL_HIGH_BIT; // Clear the bit.
- ChannelMap::iterator i = channels.find(frame.getChannel());
- if (i != channels.end()) {
- Chain& chain = isOut ? i->second.out : i->second.in;
- chain->handle(frame);
- }
- else
- updateFailoverState(frame);
-}
-
-void ChannelManager::updateFailoverState(AMQFrame& ) {
- QPID_LOG(critical, "Failover is not implemented");
- // FIXME aconway 2007-06-28:
- // If the channel is not in my map then I'm not primary so
- // I don't pass the frame to the channel handler but I
- // do need to update the session failover state.
-}
-
-}} // namespace qpid::cluster