Add PDU iterator class

src/pdu_iterator.cpp

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2017, Matias Fontanini
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ *   copyright notice, this list of conditions and the following disclaimer
+ *   in the documentation and/or other materials provided with the
+ *   distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "pdu_iterator.h"
+#include "pdu.h"
+#include "packet.h"
+
+namespace Tins {
+
+// PDUIterator
+PDUIterator::PDUIterator(pointer pdu)
+: pdu_(pdu) {
+
+}
+
+PDUIterator::pointer PDUIterator::operator->() {
+    return pdu_;
+}
+
+PDUIterator::pointer PDUIterator::operator->() const {
+    return pdu_;
+}
+
+PDUIterator::value_type PDUIterator::operator*() {
+    return *pdu_;
+}
+
+const PDUIterator::value_type PDUIterator::operator*() const {
+    return *pdu_;
+}
+
+// ConstPDUIterator
+
+ConstPDUIterator::ConstPDUIterator(pointer pdu)
+: pdu_(pdu) {
+
+}
+
+ConstPDUIterator::ConstPDUIterator(PDUIterator iterator) 
+: pdu_(&*iterator) {
+
+}
+
+ConstPDUIterator::pointer ConstPDUIterator::operator->() const {
+    return pdu_;
+}
+
+ConstPDUIterator::value_type ConstPDUIterator::operator*() const {
+    return *pdu_;
+}
+
+// Helpers
+
+PDUIteratorRange<PDUIterator> iterate_pdus(PDU* pdu) {
+    return PDUIteratorRange<PDUIterator>(pdu, 0);
+}
+
+PDUIteratorRange<PDUIterator> iterate_pdus(PDU& pdu) {
+    return PDUIteratorRange<PDUIterator>(&pdu, 0);
+}
+
+PDUIteratorRange<PDUIterator> iterate_pdus(Packet& packet) {
+    return PDUIteratorRange<PDUIterator>(packet.pdu(), 0);
+}
+
+PDUIteratorRange<ConstPDUIterator> iterate_pdus(const PDU* pdu) {
+    return PDUIteratorRange<ConstPDUIterator>(pdu, 0);
+}
+
+PDUIteratorRange<ConstPDUIterator> iterate_pdus(const PDU& pdu) {
+    return PDUIteratorRange<ConstPDUIterator>(&pdu, 0);
+}
+
+PDUIteratorRange<ConstPDUIterator> iterate_pdus(const Packet& packet) {
+    return PDUIteratorRange<ConstPDUIterator>(packet.pdu(), 0);
+}
+
+} // Tins