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Diffstat (limited to 'trunk/qpid/cpp/src/qpid/cluster/ErrorCheck.cpp')
| -rw-r--r-- | trunk/qpid/cpp/src/qpid/cluster/ErrorCheck.cpp | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/trunk/qpid/cpp/src/qpid/cluster/ErrorCheck.cpp b/trunk/qpid/cpp/src/qpid/cluster/ErrorCheck.cpp deleted file mode 100644 index d66db8551d..0000000000 --- a/trunk/qpid/cpp/src/qpid/cluster/ErrorCheck.cpp +++ /dev/null @@ -1,155 +0,0 @@ -/* - * - * Licensed to the Apache Software Foundation (ASF) under one - * or more contributor license agreements. See the NOTICE file - * distributed with this work for additional information - * regarding copyright ownership. The ASF licenses this file - * to you 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/cluster/ErrorCheck.h" -#include "qpid/cluster/EventFrame.h" -#include "qpid/cluster/ClusterMap.h" -#include "qpid/cluster/Cluster.h" -#include "qpid/framing/ClusterErrorCheckBody.h" -#include "qpid/framing/ClusterConfigChangeBody.h" -#include "qpid/log/Statement.h" - -#include <algorithm> - -namespace qpid { -namespace cluster { - -using namespace std; -using namespace framing; -using namespace framing::cluster; - -ErrorCheck::ErrorCheck(Cluster& c) - : cluster(c), mcast(c.getMulticast()), frameSeq(0), type(ERROR_TYPE_NONE), connection(0) -{} - -void ErrorCheck::error( - Connection& c, ErrorType t, framing::SequenceNumber seq, const MemberSet& ms, - const std::string& msg) -{ - // Detected a local error, inform cluster and set error state. - assert(t != ERROR_TYPE_NONE); // Must be an error. - assert(type == ERROR_TYPE_NONE); // Can't be called when already in an error state. - type = t; - unresolved = ms; - frameSeq = seq; - connection = &c; - message = msg; - QPID_LOG(debug, cluster<< (type == ERROR_TYPE_SESSION ? " channel" : " connection") - << " error " << frameSeq << " on " << c - << " must be resolved with: " << unresolved - << ": " << message); - mcast.mcastControl( - ClusterErrorCheckBody(ProtocolVersion(), type, frameSeq), cluster.getId()); - // If there are already frames queued up by a previous error, review - // them with respect to this new error. - for (FrameQueue::iterator i = frames.begin(); i != frames.end(); i = review(i)) - ; -} - -void ErrorCheck::delivered(const EventFrame& e) { - frames.push_back(e); - review(frames.end()-1); -} - -// Review a frame in the queue with respect to the current error. -ErrorCheck::FrameQueue::iterator ErrorCheck::review(const FrameQueue::iterator& i) { - FrameQueue::iterator next = i+1; - if(!isUnresolved() || !i->frame.getBody() || !i->frame.getMethod()) - return next; // Only interested in control frames while unresolved. - const AMQMethodBody* method = i->frame.getMethod(); - if (method->isA<const ClusterErrorCheckBody>()) { - const ClusterErrorCheckBody* errorCheck = - static_cast<const ClusterErrorCheckBody*>(method); - - if (errorCheck->getFrameSeq() == frameSeq) { // Addresses current error - next = frames.erase(i); // Drop matching error check controls - if (errorCheck->getType() < type) { // my error is worse than his - QPID_LOG(critical, cluster - << " local error " << frameSeq << " did not occur on member " - << i->getMemberId() - << ": " << message); - throw Exception( - QPID_MSG("local error did not occur on all cluster members " << ": " << message)); - } - else { // his error is worse/same as mine. - QPID_LOG(debug, cluster << " error " << frameSeq - << " resolved with " << i->getMemberId()); - unresolved.erase(i->getMemberId()); - checkResolved(); - } - } - else if (errorCheck->getFrameSeq() < frameSeq && errorCheck->getType() != NONE - && i->connectionId.getMember() != cluster.getId()) - { - // This error occured before the current error so we - // have processed past it. - next = frames.erase(i); // Drop the error check control - respondNone(i->connectionId.getMember(), errorCheck->getType(), - errorCheck->getFrameSeq()); - } - // if errorCheck->getFrameSeq() > frameSeq then leave it in the queue. - } - else if (method->isA<const ClusterConfigChangeBody>()) { - const ClusterConfigChangeBody* configChange = - static_cast<const ClusterConfigChangeBody*>(method); - if (configChange) { - MemberSet members(decodeMemberSet(configChange->getCurrent())); - QPID_LOG(debug, cluster << " apply config change to error " - << frameSeq << ": " << members); - MemberSet intersect; - set_intersection(members.begin(), members.end(), - unresolved.begin(), unresolved.end(), - inserter(intersect, intersect.begin())); - unresolved.swap(intersect); - checkResolved(); - } - } - return next; -} - -void ErrorCheck::checkResolved() { - if (unresolved.empty()) { // No more potentially conflicted members, we're clear. - type = ERROR_TYPE_NONE; - QPID_LOG(debug, cluster << " error " << frameSeq << " resolved."); - } - else - QPID_LOG(debug, cluster << " error " << frameSeq - << " must be resolved with " << unresolved); -} - -EventFrame ErrorCheck::getNext() { - assert(canProcess()); - EventFrame e(frames.front()); - frames.pop_front(); - return e; -} - -void ErrorCheck::respondNone(const MemberId& from, uint8_t type, framing::SequenceNumber frameSeq) { - // Don't respond to non-errors or to my own errors. - if (type == ERROR_TYPE_NONE || from == cluster.getId()) - return; - QPID_LOG(debug, cluster << " error " << frameSeq << " did not occur locally."); - mcast.mcastControl( - ClusterErrorCheckBody(ProtocolVersion(), ERROR_TYPE_NONE, frameSeq), - cluster.getId() - ); -} - -}} // namespace qpid::cluster |