+#include "protocol.h"
#include <cstring>
#include <string>
#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, Serializer<PacketHeader>>(*this, header_def, Serializer<PacketHeader>())
.fields(&PacketHeader::type, &PacketHeader::length);
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;
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 PacketDefBase &pdef = get_packet_by_id(header.type-base_id);
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