Initial commit. Created PDU class.

src/pdu.cpp

@@ -0,0 +1,41 @@
+#include <cassert.h>
+#include "pdu.h"
+
+
+PDU::PDU(uint32_t pdu_flag, , PDU *next_pdu) : _pdu_flag(pdu_flag), _inner_pdu(next_pdu) {
+    
+}
+
+PDU::~PDU() {
+    delete _inner_pdu;
+}
+
+uint32_t PDU::size() const {
+    uint32_t sz = header_size() + trailer_size();
+    PDU *ptr(_inner_pdu);
+    while(ptr) {
+        sz += ptr->header_size() + trailer_size();
+        ptr = ptr->inner_pdu();
+    }
+    return sz;
+}
+
+void PDU::inner_pdu(PDU *next_pdu) {
+    delete _inner_pdu;
+    _inner_pdu = next_pdu;
+}
+
+uint8_t *PDU::serialize() {
+    uint32_t sz(size());
+    uint8_t *buffer = new uint8_t[sz];
+    
+}
+
+void PDU::serialize(uint8_t *buffer, uint32_t total_sz) {
+    uint32_t sz = header_size() + trailer_size();
+    write_serialization(buffer, total_sz);
+    /* Must not happen... */
+    std::assert(total_sz >= sz);
+    if(_inner_pdu)
+        _inner_pdu->serialize(buffer + header_size(), total_sz - sz);
+}