1 files changed, 0 insertions, 278 deletions
diff --git a/M4-RCs/qpid/cpp/src/qpid/SessionState.cpp b/M4-RCs/qpid/cpp/src/qpid/SessionState.cpp
deleted file mode 100644
index ac75b5c5ff..0000000000
--- a/M4-RCs/qpid/cpp/src/qpid/SessionState.cpp
+++ /dev/null
@@ -1,278 +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 "SessionState.h"
-#include "qpid/framing/reply_exceptions.h"
-#include "qpid/framing/AMQMethodBody.h"
-#include "qpid/framing/enum.h"
-#include "qpid/log/Statement.h"
-#include <boost/bind.hpp>
-#include <numeric>
-
-namespace qpid {
-using framing::AMQFrame;
-using framing::NotImplementedException;
-using framing::InvalidArgumentException;
-using framing::IllegalStateException;
-using framing::ResourceLimitExceededException;
-using framing::InternalErrorException;
-using framing::FramingErrorException;
-
-namespace {
-bool isControl(const AMQFrame& f) {
-    return f.getMethod() && f.getMethod()->type() == framing::SEGMENT_TYPE_CONTROL;
-}
-bool isCommand(const AMQFrame& f) {
-    return f.getMethod() && f.getMethod()->type() == framing::SEGMENT_TYPE_COMMAND;
-}
-} // namespace
-
-SessionPoint::SessionPoint(SequenceNumber c, uint64_t o) : command(c), offset(o) {}
-
-// TODO aconway 2008-05-22: Do complete frame sequence validity check here,
-// currently duplicated betwen broker and client session impl.
-//
-void SessionPoint::advance(const AMQFrame& f) {
-    if (isControl(f)) return;   // Ignore controls.
-    if (f.isFirstSegment() && f.isFirstFrame()) {
-        if (offset != 0)
-            throw FramingErrorException(QPID_MSG("Unexpected command start frame."));
-        if (!isCommand(f))
-            throw FramingErrorException(
-                QPID_MSG("Command start frame has invalid type" << f.getBody()->type()));
-        if (f.isLastSegment() && f.isLastFrame()) 
-            ++command;          // Single-frame command.
-        else
-            offset += f.encodedSize();
-    }
-    else {                      // continuation frame for partial command
-        if (offset == 0)
-            throw FramingErrorException(QPID_MSG("Unexpected command continuation frame."));
-        if (f.isLastSegment() && f.isLastFrame()) {
-            ++command;
-            offset = 0;
-        }
-        else {
-            // TODO aconway 2008-04-24: if we go to support for partial
-            // command replay, then it may be better to record the unframed
-            // data size in a command point rather than the framed size so
-            // that the relationship of fragment offsets to the replay
-            // list can be computed more easily.
-            // 
-            offset += f.encodedSize();
-        }
-    }
-}
-
-bool SessionPoint::operator<(const SessionPoint& x) const {
-    return command < x.command || (command == x.command && offset < x.offset);
-}
-
-bool SessionPoint::operator==(const SessionPoint& x) const {
-    return command == x.command && offset == x.offset;
-}
-
-
-SessionState::SendState::SendState() : unflushedSize(), replaySize(), bytesSinceKnownCompleted() {}
-
-SessionState::ReceiveState::ReceiveState() : bytesSinceKnownCompleted() {}
-
-SessionPoint SessionState::senderGetCommandPoint() { return sender.sendPoint; }
-SequenceSet  SessionState::senderGetIncomplete() const { return sender.incomplete; }
-SessionPoint SessionState::senderGetReplayPoint() const { return sender.replayPoint; }
-
-SessionState::ReplayRange SessionState::senderExpected(const SessionPoint& expect) {
-    if (expect < sender.replayPoint || sender.sendPoint < expect)
-        throw InvalidArgumentException(QPID_MSG(getId() << ": expected command-point out of range."));
-    QPID_LOG(debug, getId() << ": sender expected point moved to " << expect);
-    ReplayList::iterator i = sender.replayList.begin();
-    SessionPoint p = sender.replayPoint;
-    while (i != sender.replayList.end() && p.command < expect.command)
-        p.advance(*i++);
-    assert(p.command == expect.command);
-    return boost::make_iterator_range(i, sender.replayList.end());
-}
-
-void SessionState::senderRecord(const AMQFrame& f) {
-    if (isControl(f)) return;   // Ignore control frames.
-    QPID_LOG_IF(debug, f.getMethod(), getId() << ": sent cmd " << sender.sendPoint.command << ": " << *f.getMethod());
-    stateful = true;
-    if (timeout) sender.replayList.push_back(f);
-    sender.unflushedSize += f.encodedSize();
-    sender.bytesSinceKnownCompleted += f.encodedSize();
-    sender.replaySize += f.encodedSize();
-    sender.incomplete += sender.sendPoint.command;
-    sender.sendPoint.advance(f);
-    if (config.replayHardLimit && config.replayHardLimit < sender.replaySize) 
-        throw ResourceLimitExceededException("Replay buffer exceeeded hard limit");
-}
-
-static const uint32_t SPONTANEOUS_REQUEST_INTERVAL = 65536; 
-
-bool SessionState::senderNeedFlush() const {
-    return (sender.sendPoint.command % SPONTANEOUS_REQUEST_INTERVAL == 0) ||
-        (config.replayFlushLimit && sender.unflushedSize >= config.replayFlushLimit);
-}
-
-void SessionState::senderRecordFlush() {
-    sender.flushPoint = sender.sendPoint;
-    sender.unflushedSize = 0;
-}
-
-bool SessionState::senderNeedKnownCompleted() const {
-    return config.replayFlushLimit && sender.bytesSinceKnownCompleted >= config.replayFlushLimit;
-}
-
-void SessionState::senderRecordKnownCompleted() {
-    sender.bytesSinceKnownCompleted = 0;
-}
-
-void SessionState::senderConfirmed(const SessionPoint& confirmed) {
-    if (confirmed > sender.sendPoint)
-        throw InvalidArgumentException(QPID_MSG(getId() << ": confirmed < " << confirmed << " but only sent < " << sender.sendPoint));
-    QPID_LOG(debug, getId() << ": sender confirmed point moved to " << confirmed);
-    ReplayList::iterator i = sender.replayList.begin();
-    while (i != sender.replayList.end() && sender.replayPoint.command < confirmed.command) {
-        sender.replayPoint.advance(*i);
-        assert(sender.replayPoint <= sender.sendPoint);
-        sender.replaySize -= i->encodedSize();
-        if (sender.replayPoint > sender.flushPoint) 
-            sender.unflushedSize -= i->encodedSize();
-        ++i;
-    }
-    if (sender.replayPoint > sender.flushPoint)
-        sender.flushPoint = sender.replayPoint;
-    sender.replayList.erase(sender.replayList.begin(), i);
-    assert(sender.replayPoint.offset == 0);
-}
-
-void SessionState::senderCompleted(const SequenceSet& commands) {
-    if (commands.empty()) return;
-    QPID_LOG(debug, getId() << ": sender marked completed: " << commands);
-    sender.incomplete -= commands;
-    // Completion implies confirmation but we don't handle out-of-order
-    // confirmation, so confirm up to the end of the first contiguous range of commands.
-    senderConfirmed(SessionPoint(commands.rangesBegin()->end()));
-}
-
-void SessionState::receiverSetCommandPoint(const SessionPoint& point) {
-    if (hasState() && point > receiver.received)
-        throw InvalidArgumentException(QPID_MSG(getId() << ": Command-point out of range."));
-    QPID_LOG(debug, getId() << ": receiver command-point set to: " << point);
-    receiver.expected = point;
-    if (receiver.expected > receiver.received)
-        receiver.received = receiver.expected;
-}
-
-bool SessionState::receiverRecord(const AMQFrame& f) {
-    if (isControl(f)) return true; // Ignore control frames.
-    stateful = true;
-    receiver.expected.advance(f);
-    receiver.bytesSinceKnownCompleted += f.encodedSize();
-    bool firstTime = receiver.expected > receiver.received;
-    if (firstTime) {
-        receiver.received = receiver.expected;
-        receiver.incomplete += receiverGetCurrent();
-    }
-    QPID_LOG_IF(debug, f.getMethod(), getId() << ": recv cmd " << receiverGetCurrent() << ": " << *f.getMethod());
-    QPID_LOG_IF(debug, !firstTime, "Ignoring duplicate frame: " << receiverGetCurrent() << ": " << f);
-    return firstTime;
-}
-    
-void SessionState::receiverCompleted(SequenceNumber command, bool cumulative) {
-    assert(receiver.incomplete.contains(command)); // Internal error to complete command twice.
-    SequenceNumber first =cumulative ? receiver.incomplete.front() : command;
-    SequenceNumber last = command;
-    receiver.unknownCompleted.add(first, last);
-    receiver.incomplete.remove(first, last);
-    QPID_LOG(debug, getId() << ": receiver marked completed: " << command
-             << " incomplete: " << receiver.incomplete
-             << " unknown-completed: " << receiver.unknownCompleted);
-}
-
-void SessionState::receiverKnownCompleted(const SequenceSet& commands) {
-    if (!commands.empty() && commands.back() > receiver.received.command)
-        throw InvalidArgumentException(QPID_MSG(getId() << ": Known-completed has invalid commands."));
-    receiver.bytesSinceKnownCompleted=0;
-    receiver.unknownCompleted -= commands;
-    QPID_LOG(debug, getId() << ": receiver known completed: " << commands << " unknown: " << receiver.unknownCompleted);
-}
-
-bool SessionState::receiverNeedKnownCompleted() const {
-    return (receiver.expected.command % SPONTANEOUS_REQUEST_INTERVAL == 0) ||
-        (config.replayFlushLimit && receiver.bytesSinceKnownCompleted >= config.replayFlushLimit);
-}
-        
-const SessionPoint& SessionState::receiverGetExpected() const { return receiver.expected; }
-const SessionPoint& SessionState::receiverGetReceived() const { return receiver.received; }
-const SequenceSet& SessionState::receiverGetUnknownComplete() const { return receiver.unknownCompleted; }
-const SequenceSet& SessionState::receiverGetIncomplete() const { return receiver.incomplete; }
-
-SequenceNumber SessionState::receiverGetCurrent() const {
-    SequenceNumber current = receiver.expected.command;
-    if (receiver.expected.offset == 0)
-        --current;
-    return current;
-}
-
-SessionState::Configuration::Configuration(size_t flush, size_t hard) :
-    replayFlushLimit(flush), replayHardLimit(hard) {}
-
-SessionState::SessionState(const SessionId& i, const Configuration& c)
-    : id(i), timeout(), config(c), stateful()
-{
-    QPID_LOG(debug, "SessionState::SessionState " << id << ": " << this);
-}
-
-bool SessionState::hasState() const { return stateful; }
-
-SessionState::~SessionState() {}
-
-std::ostream& operator<<(std::ostream& o, const SessionPoint& p) {
-    return o << "(" << p.command.getValue() << "+" << p.offset << ")";
-}
-
-void SessionState::setState(
-    const SequenceNumber& replayStart,
-    const SequenceNumber& sendCommandPoint,
-    const SequenceSet& sentIncomplete,
-    const SequenceNumber& expected,
-    const SequenceNumber& received,
-    const SequenceSet& unknownCompleted,
-    const SequenceSet& receivedIncomplete
-)
-{
-    sender.replayPoint = replayStart;
-    sender.flushPoint = sendCommandPoint;
-    sender.sendPoint = sendCommandPoint;
-    sender.unflushedSize = 0;
-    sender.replaySize = 0;      // Replay list will be updated separately.
-    sender.incomplete = sentIncomplete;
-    sender.bytesSinceKnownCompleted = 0;
-
-    receiver.expected = expected;
-    receiver.received = received;
-    receiver.unknownCompleted = unknownCompleted;
-    receiver.incomplete = receivedIncomplete;
-    receiver.bytesSinceKnownCompleted = 0;
-}
-
-} // namespace qpid