summaryrefslogtreecommitdiff
path: root/cpp/src/qpid/framing
diff options
context:
space:
mode:
authorGordon Sim <gsim@apache.org>2008-03-03 14:49:06 +0000
committerGordon Sim <gsim@apache.org>2008-03-03 14:49:06 +0000
commitb4dac41573e33e1a04a2b7b8c9a35f5e72b662bc (patch)
tree15e25a2dc7b42f3788f9dccdd7e632dcf8c346d2 /cpp/src/qpid/framing
parent928699508993a5ccc59254027773281883d1e973 (diff)
downloadqpid-python-b4dac41573e33e1a04a2b7b8c9a35f5e72b662bc.tar.gz
A further step to final 0-10 spec.
The extra.xml fragment adds class defs for connection in session that are in line with latest spec but use old schema. The preview codepath (99-0) remains unaltered. git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@633108 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'cpp/src/qpid/framing')
-rw-r--r--cpp/src/qpid/framing/AccumulatedAck.cpp2
-rw-r--r--cpp/src/qpid/framing/BodyHolder.cpp1
-rw-r--r--cpp/src/qpid/framing/Buffer.cpp14
-rw-r--r--cpp/src/qpid/framing/Buffer.h2
-rw-r--r--cpp/src/qpid/framing/SequenceNumber.cpp5
-rw-r--r--cpp/src/qpid/framing/SequenceNumber.h2
-rw-r--r--cpp/src/qpid/framing/SequenceSet.cpp222
-rw-r--r--cpp/src/qpid/framing/SequenceSet.h86
-rw-r--r--cpp/src/qpid/framing/amqp_types.h1
-rw-r--r--cpp/src/qpid/framing/amqp_types_full.h1
10 files changed, 332 insertions, 4 deletions
diff --git a/cpp/src/qpid/framing/AccumulatedAck.cpp b/cpp/src/qpid/framing/AccumulatedAck.cpp
index bf53bf0cd6..2d3ecf3f6a 100644
--- a/cpp/src/qpid/framing/AccumulatedAck.cpp
+++ b/cpp/src/qpid/framing/AccumulatedAck.cpp
@@ -83,7 +83,7 @@ void AccumulatedAck::update(SequenceNumber first, SequenceNumber last){
void AccumulatedAck::consolidate(){}
void AccumulatedAck::clear(){
- mark = 0;//not sure that this is valid when wraparound is a possibility
+ mark = SequenceNumber(0);//not sure that this is valid when wraparound is a possibility
ranges.clear();
}
diff --git a/cpp/src/qpid/framing/BodyHolder.cpp b/cpp/src/qpid/framing/BodyHolder.cpp
index f66f29d36a..de971b5b28 100644
--- a/cpp/src/qpid/framing/BodyHolder.cpp
+++ b/cpp/src/qpid/framing/BodyHolder.cpp
@@ -48,6 +48,7 @@ void BodyHolder::encode(Buffer& b) const {
void BodyHolder::decode(uint8_t type, Buffer& buffer, uint32_t size) {
switch(type)
{
+ case 0://CONTROL
case METHOD_BODY: {
ClassId c = buffer.getOctet();
MethodId m = buffer.getOctet();
diff --git a/cpp/src/qpid/framing/Buffer.cpp b/cpp/src/qpid/framing/Buffer.cpp
index c0cd210042..60d67f1b07 100644
--- a/cpp/src/qpid/framing/Buffer.cpp
+++ b/cpp/src/qpid/framing/Buffer.cpp
@@ -194,6 +194,13 @@ void Buffer::putShortString(const string& s){
position += len;
}
+void Buffer::putMediumString(const string& s){
+ uint16_t len = s.length();
+ putShort(len);
+ s.copy(data + position, len);
+ position += len;
+}
+
void Buffer::putLongString(const string& s){
uint32_t len = s.length();
putLong(len);
@@ -208,6 +215,13 @@ void Buffer::getShortString(string& s){
position += len;
}
+void Buffer::getMediumString(string& s){
+ uint16_t len = getShort();
+ checkAvailable(len);
+ s.assign(data + position, len);
+ position += len;
+}
+
void Buffer::getLongString(string& s){
uint32_t len = getLong();
checkAvailable(len);
diff --git a/cpp/src/qpid/framing/Buffer.h b/cpp/src/qpid/framing/Buffer.h
index 9c0d403462..585379b09a 100644
--- a/cpp/src/qpid/framing/Buffer.h
+++ b/cpp/src/qpid/framing/Buffer.h
@@ -97,8 +97,10 @@ class Buffer
void putUInt(uint64_t);
void putShortString(const string& s);
+ void putMediumString(const string& s);
void putLongString(const string& s);
void getShortString(string& s);
+ void getMediumString(string& s);
void getLongString(string& s);
void getBin128(uint8_t* b);
diff --git a/cpp/src/qpid/framing/SequenceNumber.cpp b/cpp/src/qpid/framing/SequenceNumber.cpp
index 3172246cc2..1b62d296c6 100644
--- a/cpp/src/qpid/framing/SequenceNumber.cpp
+++ b/cpp/src/qpid/framing/SequenceNumber.cpp
@@ -51,9 +51,10 @@ const SequenceNumber SequenceNumber::operator++(int)
return old;
}
-SequenceNumber SequenceNumber::operator+(uint32_t i) const
+SequenceNumber& SequenceNumber::operator--()
{
- return SequenceNumber(value + i);
+ value = value - 1;
+ return *this;
}
bool SequenceNumber::operator<(const SequenceNumber& other) const
diff --git a/cpp/src/qpid/framing/SequenceNumber.h b/cpp/src/qpid/framing/SequenceNumber.h
index b2594452d0..0ed591b804 100644
--- a/cpp/src/qpid/framing/SequenceNumber.h
+++ b/cpp/src/qpid/framing/SequenceNumber.h
@@ -39,7 +39,7 @@ class SequenceNumber
SequenceNumber& operator++();//prefix ++
const SequenceNumber operator++(int);//postfix ++
- SequenceNumber operator+(uint32_t) const;
+ SequenceNumber& operator--();//prefix ++
bool operator==(const SequenceNumber& other) const;
bool operator!=(const SequenceNumber& other) const;
bool operator<(const SequenceNumber& other) const;
diff --git a/cpp/src/qpid/framing/SequenceSet.cpp b/cpp/src/qpid/framing/SequenceSet.cpp
new file mode 100644
index 0000000000..e3461e233b
--- /dev/null
+++ b/cpp/src/qpid/framing/SequenceSet.cpp
@@ -0,0 +1,222 @@
+/*
+ *
+ * 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 "SequenceSet.h"
+
+using namespace qpid::framing;
+using std::max;
+using std::min;
+
+namespace {
+//each range contains 2 numbers, 4 bytes each
+uint16_t RANGE_SIZE = 2 * 4;
+}
+
+void SequenceSet::encode(Buffer& buffer) const
+{
+ buffer.putShort(ranges.size() * RANGE_SIZE);
+ for (Ranges::const_iterator i = ranges.begin(); i != ranges.end(); i++) {
+ i->encode(buffer);
+ }
+}
+
+void SequenceSet::decode(Buffer& buffer)
+{
+ uint16_t size = buffer.getShort();
+ uint16_t count = size / RANGE_SIZE;//number of ranges
+ if (size % RANGE_SIZE) throw FrameErrorException(QPID_MSG("Invalid size for sequence set: " << size));
+
+ for (uint16_t i = 0; i < count; i++) {
+ add(SequenceNumber(buffer.getLong()), SequenceNumber(buffer.getLong()));
+ }
+}
+
+uint32_t SequenceSet::size() const
+{
+ return 2 /*size field*/ + (ranges.size() * RANGE_SIZE);
+}
+
+bool SequenceSet::contains(const SequenceNumber& point) const
+{
+ for (Ranges::const_iterator i = ranges.begin(); i != ranges.end(); i++) {
+ if (i->contains(point)) return true;
+ }
+ return false;
+}
+
+void SequenceSet::add(const SequenceNumber& s)
+{
+ add(s, s);
+}
+
+void SequenceSet::add(const SequenceNumber& start, const SequenceNumber& end)
+{
+ if (start > end) {
+ add(end, start);
+ } else {
+ Range r(start, end);
+ bool merged = false;
+ Ranges::iterator i = ranges.begin();
+ while (i != ranges.end() && !merged && i->start < start) {
+ if (i->merge(r)) merged = true;
+ i++;
+ }
+ if (!merged) {
+ ranges.insert(i, r);
+ }
+ }
+}
+
+void SequenceSet::add(const SequenceSet& set)
+{
+ for (Ranges::const_iterator i = set.ranges.begin(); i != set.ranges.end(); i++) {
+ add(i->start, i->end);
+ }
+}
+
+void SequenceSet::remove(const SequenceSet& set)
+{
+ for (Ranges::const_iterator i = set.ranges.begin(); i != set.ranges.end(); i++) {
+ remove(i->start, i->end);
+ }
+}
+
+void SequenceSet::remove(const SequenceNumber& start, const SequenceNumber& end)
+{
+ if (start > end) {
+ remove(end, start);
+ } else {
+ Ranges::iterator i = ranges.begin();
+ while (i != ranges.end() && i->start < start) {
+ if (start <= i->end) {
+ if (end > i->end) {
+ //i.e. start is within the range pointed to by i, but end is not
+ i->end = (uint32_t)start - 1;
+ } else {
+ //whole of range to be deleted is contained within that pointed to be i
+ if (end == i->end) {
+ //just shrink range pointed to by i
+ i->end = (uint32_t)start - 1;
+ } else {
+ //need to split the range pointed to by i
+ Range r(i->start, (uint32_t)start - 1);
+ i->start = end + 1;
+ ranges.insert(i, r);
+ }
+ return;//no need to go any further
+ }
+ }
+ i++;
+ }
+ Ranges::iterator j = i;
+ while (j != ranges.end() && j->end < end) {
+ j++;
+ }
+ if (j->start <= end){
+ j->start = end + 1;
+ }
+ ranges.erase(i, j);
+ }
+}
+
+void SequenceSet::remove(const SequenceNumber& s)
+{
+ for (Ranges::iterator i = ranges.begin(); i != ranges.end() && s >= i->start; i++) {
+ if (i->start == s) {
+ if (i->start == i->end) {
+ ranges.erase(i);
+ } else {
+ ++(i->start);
+ }
+ } else if (i->end == s) {
+ --(i->end);
+ } else if (i->contains(s)) {
+ //need to split range pointed to by i
+ Range r(i->start, (uint32_t)s - 1);
+ i->start = s + 1;
+ ranges.insert(i, r);
+ }
+ }
+}
+
+bool SequenceSet::empty() const
+{
+ return ranges.empty();
+}
+
+void SequenceSet::clear()
+{
+ return ranges.clear();
+}
+
+bool SequenceSet::Range::contains(SequenceNumber i) const
+{
+ return i >= start && i <= end;
+}
+
+bool SequenceSet::Range::intersects(const Range& r) const
+{
+ return r.contains(start) || r.contains(end) || contains(r.start) || contains(r.end);
+}
+
+bool SequenceSet::Range::merge(const Range& r)
+{
+ if (intersects(r) || mergeable(r.end) || r.mergeable(end)) {
+ start = min(start, r.start);
+ end = max(end, r.end);
+ return true;
+ } else {
+ return false;
+ }
+}
+
+bool SequenceSet::Range::mergeable(const SequenceNumber& s) const
+{
+ if (contains(s) || start - s == 1) {
+ return true;
+ } else {
+ return false;
+ }
+}
+
+void SequenceSet::Range::encode(Buffer& buffer) const
+{
+ buffer.putLong(start);
+ buffer.putLong(end);
+}
+
+SequenceSet::Range::Range(SequenceNumber s, SequenceNumber e) : start(s), end(e) {}
+
+namespace qpid{
+namespace framing{
+
+std::ostream& operator<<(std::ostream& out, const SequenceSet& set) {
+ out << "{";
+ for (SequenceSet::Ranges::const_iterator i = set.ranges.begin(); i != set.ranges.end(); i++) {
+ if (i != set.ranges.begin()) out << ", ";
+ out << i->start.getValue() << "-" << i->end.getValue();
+ }
+ out << "}";
+ return out;
+}
+
+}
+}
diff --git a/cpp/src/qpid/framing/SequenceSet.h b/cpp/src/qpid/framing/SequenceSet.h
new file mode 100644
index 0000000000..2f34cb5cba
--- /dev/null
+++ b/cpp/src/qpid/framing/SequenceSet.h
@@ -0,0 +1,86 @@
+/*
+ *
+ * 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.
+ *
+ */
+#ifndef _framing_SequenceSet_h
+#define _framing_SequenceSet_h
+
+#include <ostream>
+#include <list>
+#include "amqp_types.h"
+#include "Buffer.h"
+#include "SequenceNumber.h"
+#include "qpid/framing/reply_exceptions.h"
+
+namespace qpid {
+namespace framing {
+
+class SequenceSet
+{
+ struct Range
+ {
+ SequenceNumber start;
+ SequenceNumber end;
+
+ Range(SequenceNumber s, SequenceNumber e);
+ bool contains(SequenceNumber i) const;
+ bool intersects(const Range& r) const;
+ bool merge(const Range& r);
+ bool mergeable(const SequenceNumber& r) const;
+ void encode(Buffer& buffer) const;
+ };
+
+ typedef std::list<Range> Ranges;
+ Ranges ranges;
+
+public:
+ SequenceSet() {}
+ SequenceSet(const SequenceNumber& s) { add(s); }
+
+ void encode(Buffer& buffer) const;
+ void decode(Buffer& buffer);
+ uint32_t size() const;
+
+ bool contains(const SequenceNumber& s) const;
+ void add(const SequenceNumber& s);
+ void add(const SequenceNumber& start, const SequenceNumber& end);
+ void add(const SequenceSet& set);
+ void remove(const SequenceNumber& s);
+ void remove(const SequenceNumber& start, const SequenceNumber& end);
+ void remove(const SequenceSet& set);
+
+ void clear();
+ bool empty() const;
+
+ template <class T>
+ void for_each(T& t) const
+ {
+ for (Ranges::const_iterator i = ranges.begin(); i != ranges.end(); i++) {
+ t(i->start, i->end);
+ }
+ }
+
+ friend std::ostream& operator<<(std::ostream&, const SequenceSet&);
+};
+
+
+}} // namespace qpid::framing
+
+
+#endif
diff --git a/cpp/src/qpid/framing/amqp_types.h b/cpp/src/qpid/framing/amqp_types.h
index 94442aa357..943970cc56 100644
--- a/cpp/src/qpid/framing/amqp_types.h
+++ b/cpp/src/qpid/framing/amqp_types.h
@@ -65,6 +65,7 @@ const ChannelId CHANNEL_HIGH_BIT= ChannelId(~CHANNEL_MAX);
class FramingContent;
class FieldTable;
class SequenceNumberSet;
+class SequenceSet;
class Uuid;
}} // namespace qpid::framing
diff --git a/cpp/src/qpid/framing/amqp_types_full.h b/cpp/src/qpid/framing/amqp_types_full.h
index f1ed44ec05..da7bdc876d 100644
--- a/cpp/src/qpid/framing/amqp_types_full.h
+++ b/cpp/src/qpid/framing/amqp_types_full.h
@@ -34,6 +34,7 @@
#include "FramingContent.h"
#include "FieldTable.h"
#include "SequenceNumberSet.h"
+#include "SequenceSet.h"
#include "Uuid.h"
#endif /*!_framing_amqp_types_decl_h*/