+#include "protocol.h"
#include <cstring>
#include <string>
-#include <msp/core/hash.h>
#include <msp/core/maputils.h>
#include <msp/strings/format.h>
#include <msp/strings/lexicalcast.h>
-#include "protocol.h"
using namespace std;
namespace Msp {
namespace Net {
-Protocol::Protocol(unsigned npi):
- header_def(0),
- next_packet_id(npi)
+Protocol::Protocol():
+ header_def(0)
{
- PacketDefBuilder<PacketHeader, NullSerializer<PacketHeader> >(*this, header_def, NullSerializer<PacketHeader>())
- (&PacketHeader::type)(&PacketHeader::length);
-}
-
-Protocol::~Protocol()
-{
- for(auto &kvp: packet_class_defs)
- delete kvp.second;
+ PacketDefBuilder<PacketHeader, Serializer<PacketHeader>>(*this, header_def, Serializer<PacketHeader>())
+ .fields(&PacketHeader::type, &PacketHeader::length);
}
unsigned Protocol::get_next_packet_class_id()
return next_id++;
}
-void Protocol::add_packet(PacketDefBase *pdef)
+void Protocol::add_packet(unique_ptr<PacketDefBase> pdef)
{
- PacketDefBase *&ptr = packet_class_defs[pdef->get_class_id()];
+ unique_ptr<PacketDefBase> &ptr = packet_class_defs[pdef->get_class_id()];
if(ptr)
- {
packet_id_defs.erase(ptr->get_id());
- delete ptr;
- }
- ptr = pdef;
- if(unsigned id = pdef->get_id())
- packet_id_defs[id] = pdef;
+ ptr = move(pdef);
+ if(unsigned id = ptr->get_id())
+ packet_id_defs[id] = ptr.get();
}
const Protocol::PacketDefBase &Protocol::get_packet_by_class_id(unsigned id) const
return *get_item(packet_id_defs, id);
}
-size_t Protocol::dispatch(ReceiverBase &rcv, const char *buf, size_t size) const
+unsigned Protocol::get_max_packet_id() const
+{
+ if(packet_id_defs.empty())
+ return 0;
+ return prev(packet_id_defs.end())->first;
+}
+
+size_t Protocol::dispatch(ReceiverBase &rcv, const char *buf, size_t size, unsigned base_id) const
{
PacketHeader header;
- buf = header_def.deserialize(header, buf, buf+size);
+ const char *ptr = header_def.deserialize(header, buf, buf+size);
if(header.length>size)
throw bad_packet("truncated");
- const PacketDefBase &pdef = get_packet_by_id(header.type);
- const char *ptr = pdef.dispatch(rcv, buf, buf+header.length);
+ const PacketDefBase &pdef = get_packet_by_id(header.type-base_id);
+ if(DynamicReceiver *drcv = dynamic_cast<DynamicReceiver *>(&rcv))
+ {
+ Variant pkt;
+ ptr = pdef.deserialize(pkt, ptr, ptr+header.length);
+ drcv->receive(pdef.get_id(), pkt);
+ }
+ else
+ ptr = pdef.dispatch(rcv, ptr, ptr+header.length);
return ptr-buf;
}
-size_t Protocol::get_packet_size(const char *buf, size_t size) const
+bool Protocol::get_packet_header(PacketHeader &header, const char *buf, size_t size) const
{
if(size<4)
- return 0;
- PacketHeader header;
+ return false;
header_def.deserialize(header, buf, buf+size);
- return header.length;
+ return true;
+}
+
+size_t Protocol::get_packet_size(const char *buf, size_t size) const
+{
+ PacketHeader header;
+ return (get_packet_header(header, buf, size) ? header.length : 0);
}
uint64_t Protocol::get_hash() const
{
- string description;
+ uint64_t result = hash<64>(packet_id_defs.size());
for(auto &kvp: packet_id_defs)
- description += format("%d:%s\n", kvp.first, kvp.second->describe());
- return hash<64>(description);
+ {
+ hash_update<64>(result, kvp.first);
+ hash_update<64>(result, kvp.second->get_hash());
+ }
+ return result;
}
{ }
-Protocol::PacketHeader::PacketHeader():
- type(0),
- length(0)
-{ }
-
Protocol::PacketHeader::PacketHeader(uint16_t t, uint16_t l):
type(t),
length(l)