+++ /dev/null
-#include <cstring>
-#include <string>
-#include <msp/core/maputils.h>
-#include <msp/strings/lexicalcast.h>
-#include "protocol.h"
-
-using namespace std;
-
-namespace {
-
-using Msp::Net::buffer_error;
-
-template<typename T>
-class Assembler
-{
-public:
- static char *assemble(const T &v, char *, char *);
- static const char *disassemble(T &, const char *, const char *);
-};
-
-template<typename T>
-class Assembler<vector<T> >
-{
-public:
- static char *assemble(const vector<T> &v, char *, char *);
- static const char *disassemble(vector<T> &, const char *, const char *);
-};
-
-template<typename T>
-char *Assembler<T>::assemble(const T &v, char *data, char *end)
-{
- // XXX Assumes little-endian
- const char *ptr = reinterpret_cast<const char *>(&v)+sizeof(T);
- for(unsigned i=0; i<sizeof(T); ++i)
- {
- if(data==end)
- throw buffer_error("overflow");
- *data++ = *--ptr;
- }
- return data;
-}
-
-template<>
-char *Assembler<string>::assemble(const string &v, char *data, char *end)
-{
- data = Assembler<unsigned short>::assemble(v.size(), data, end);
- if(end-data<static_cast<int>(v.size()))
- throw buffer_error("overflow");
- memcpy(data, v.data(), v.size());
- return data+v.size();
-}
-
-template<typename T>
-char *Assembler<vector<T> >::assemble(const vector<T> &v, char *data, char *end)
-{
- data = Assembler<unsigned short>::assemble(v.size(), data, end);
- for(typename vector<T>::const_iterator i=v.begin(); i!=v.end(); ++i)
- data = Assembler<T>::assemble(*i, data, end);
- return data;
-}
-
-template<typename T>
-const char *Assembler<T>::disassemble(T &v, const char *data, const char *end)
-{
- char *ptr = reinterpret_cast<char *>(&v)+sizeof(T);
- for(unsigned i=0; i<sizeof(T); ++i)
- {
- if(data==end)
- throw buffer_error("underflow");
- *--ptr = *data++;
- }
- return data;
-}
-
-template<>
-const char *Assembler<string>::disassemble(string &v, const char *data, const char *end)
-{
- unsigned short size;
- data = Assembler<unsigned short>::disassemble(size, data, end);
- if(end-data<size)
- throw buffer_error("underflow");
- v.assign(data, data+size);
- return data+size;
-}
-
-template<typename T>
-const char *Assembler<vector<T> >::disassemble(vector<T> &v, const char *data, const char *end)
-{
- /* We assume that the vector is in pristine state - this holds because the
- only code path leading here is from PacketDef<P>::disassemble, which creates
- a new packet. */
- unsigned short size;
- data = Assembler<unsigned short>::disassemble(size, data, end);
- for(unsigned i=0; i<size; ++i)
- {
- T u;
- data = Assembler<T>::disassemble(u, data, end);
- v.push_back(u);
- }
- return data;
-}
-
-}
-
-namespace Msp {
-namespace Net {
-
-Protocol::Protocol(unsigned npi):
- next_packet_id(npi)
-{ }
-
-Protocol::~Protocol()
-{
- for(map<unsigned, PacketDefBase *>::iterator i=packet_class_defs.begin(); i!=packet_class_defs.end(); ++i)
- delete i->second;
-}
-
-void Protocol::add_packet(PacketDefBase &pdef)
-{
- PacketDefBase *&ptr = packet_class_defs[pdef.get_class_id()];
- if(ptr)
- delete ptr;
- ptr = &pdef;
- packet_id_defs[pdef.get_id()] = &pdef;
-}
-
-const Protocol::PacketDefBase &Protocol::get_packet_by_class(unsigned id) const
-{
- return *get_item(packet_class_defs, id);
-}
-
-const Protocol::PacketDefBase &Protocol::get_packet_by_id(unsigned id) const
-{
- return *get_item(packet_id_defs, id);
-}
-
-unsigned Protocol::disassemble(ReceiverBase &rcv, const char *data, unsigned size) const
-{
- const unsigned char *udata = reinterpret_cast<const unsigned char *>(data);
- unsigned id = (udata[0]<<8)+udata[1];
- unsigned psz = (udata[2]<<8)+udata[3];
- if(psz>size)
- throw bad_packet("truncated");
- const PacketDefBase &pdef = get_packet_by_id(id);
- const char *ptr = pdef.disassemble(rcv, data+4, data+psz);
- return ptr-data;
-}
-
-unsigned Protocol::get_packet_size(const char *data, unsigned size) const
-{
- if(size<4)
- return 0;
- const unsigned char *udata = reinterpret_cast<const unsigned char *>(data);
- return (udata[2]<<8)+udata[3];
-}
-
-unsigned Protocol::get_hash() const
-{
- // TODO
- return 123;
-}
-
-void Protocol::assemble_header(char *buf, unsigned id, unsigned size)
-{
- buf[0] = (id>>8)&0xFF;
- buf[1] = id&0xFF;
- buf[2] = (size>>8)&0xFF;
- buf[3] = size&0xFF;
-}
-
-template<typename T>
-char *Protocol::assemble_field(const T &v, char *d, char *e)
-{ return Assembler<T>::assemble(v, d, e); }
-
-template char *Protocol::assemble_field<>(const char &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const signed char &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const unsigned char &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const short &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const unsigned short &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const int &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const unsigned &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const long &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const unsigned long &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const float &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const double &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const string &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<char> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<signed char> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<unsigned char> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<short> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<unsigned short> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<int> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<unsigned> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<long> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<unsigned long> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<float> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<double> &v, char *d, char *e);
-template char *Protocol::assemble_field<>(const vector<string> &v, char *d, char *e);
-
-template<typename T>
-const char *Protocol::disassemble_field(T &v, const char *d, const char *e)
-{ return Assembler<T>::disassemble(v, d, e); }
-
-template const char *Protocol::disassemble_field<>(char &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(signed char &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(unsigned char &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(short &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(unsigned short &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(int &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(unsigned &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(long &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(unsigned long &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(float &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(double &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(string &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<char> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<signed char> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<unsigned char> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<short> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<unsigned short> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<int> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<unsigned> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<long> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<unsigned long> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<float> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<double> &v, const char *d, const char *e);
-template const char *Protocol::disassemble_field<>(vector<string> &v, const char *d, const char *e);
-
-unsigned Protocol::PacketDefBase::next_class_id = 1;
-
-} // namespace Net
-} // namespace Msp
projects / libs / net.git / blobdiff