3 #include <msp/core/maputils.h>
4 #include <msp/strings/format.h>
5 #include <msp/strings/lexicalcast.h>
13 Protocol::Protocol(unsigned npi):
17 PacketDefBuilder<PacketHeader, NullSerializer<PacketHeader> >(*this, header_def, NullSerializer<PacketHeader>())
18 (&PacketHeader::type)(&PacketHeader::length);
23 for(auto &kvp: packet_class_defs)
27 unsigned Protocol::get_next_packet_class_id()
29 static unsigned next_id = 1;
33 void Protocol::add_packet(PacketDefBase *pdef)
35 PacketDefBase *&ptr = packet_class_defs[pdef->get_class_id()];
38 packet_id_defs.erase(ptr->get_id());
42 if(unsigned id = pdef->get_id())
43 packet_id_defs[id] = pdef;
46 const Protocol::PacketDefBase &Protocol::get_packet_by_class_id(unsigned id) const
48 return *get_item(packet_class_defs, id);
51 const Protocol::PacketDefBase &Protocol::get_packet_by_id(unsigned id) const
53 return *get_item(packet_id_defs, id);
56 size_t Protocol::dispatch(ReceiverBase &rcv, const char *buf, size_t size) const
59 buf = header_def.deserialize(header, buf, buf+size);
60 if(header.length>size)
61 throw bad_packet("truncated");
62 const PacketDefBase &pdef = get_packet_by_id(header.type);
63 const char *ptr = pdef.dispatch(rcv, buf, buf+header.length);
67 size_t Protocol::get_packet_size(const char *buf, size_t size) const
72 header_def.deserialize(header, buf, buf+size);
76 uint64_t Protocol::get_hash() const
78 uint64_t result = hash<64>(packet_id_defs.size());
79 for(auto &kvp: packet_id_defs)
81 hash_update<64>(result, kvp.first);
82 hash_update<64>(result, kvp.second->get_hash());
88 /* TODO These assumes the machine is little-endian; are there any relevant
89 big-endian platforms these days? */
91 char *Protocol::BasicSerializer<T>::serialize(const T &value, char *buf, char *end) const
93 if(end-buf<static_cast<int>(sizeof(T)))
94 throw buffer_error("overflow");
96 const char *ptr = reinterpret_cast<const char *>(&value)+sizeof(T);
97 for(size_t i=0; i<sizeof(T); ++i)
104 const char *Protocol::BasicSerializer<T>::deserialize(T &value, const char *buf, const char *end) const
106 if(end-buf<static_cast<int>(sizeof(T)))
107 throw buffer_error("underflow");
109 char *ptr = reinterpret_cast<char *>(&value)+sizeof(T);
110 for(size_t i=0; i<sizeof(T); ++i)
116 template char *Protocol::BasicSerializer<bool>::serialize(const bool &, char *, char *) const;
117 template char *Protocol::BasicSerializer<int8_t>::serialize(const int8_t &, char *, char *) const;
118 template char *Protocol::BasicSerializer<int16_t>::serialize(const int16_t &, char *, char *) const;
119 template char *Protocol::BasicSerializer<int32_t>::serialize(const int32_t &, char *, char *) const;
120 template char *Protocol::BasicSerializer<int64_t>::serialize(const int64_t &, char *, char *) const;
121 template char *Protocol::BasicSerializer<uint8_t>::serialize(const uint8_t &, char *, char *) const;
122 template char *Protocol::BasicSerializer<uint16_t>::serialize(const uint16_t &, char *, char *) const;
123 template char *Protocol::BasicSerializer<uint32_t>::serialize(const uint32_t &, char *, char *) const;
124 template char *Protocol::BasicSerializer<uint64_t>::serialize(const uint64_t &, char *, char *) const;
125 template char *Protocol::BasicSerializer<float>::serialize(const float &, char *, char *) const;
126 template char *Protocol::BasicSerializer<double>::serialize(const double &, char *, char *) const;
127 template const char *Protocol::BasicSerializer<bool>::deserialize(bool &, const char *, const char *) const;
128 template const char *Protocol::BasicSerializer<int8_t>::deserialize(int8_t &, const char *, const char *) const;
129 template const char *Protocol::BasicSerializer<int16_t>::deserialize(int16_t &, const char *, const char *) const;
130 template const char *Protocol::BasicSerializer<int32_t>::deserialize(int32_t &, const char *, const char *) const;
131 template const char *Protocol::BasicSerializer<int64_t>::deserialize(int64_t &, const char *, const char *) const;
132 template const char *Protocol::BasicSerializer<uint8_t>::deserialize(uint8_t &, const char *, const char *) const;
133 template const char *Protocol::BasicSerializer<uint16_t>::deserialize(uint16_t &, const char *, const char *) const;
134 template const char *Protocol::BasicSerializer<uint32_t>::deserialize(uint32_t &, const char *, const char *) const;
135 template const char *Protocol::BasicSerializer<uint64_t>::deserialize(uint64_t &, const char *, const char *) const;
136 template const char *Protocol::BasicSerializer<float>::deserialize(float &, const char *, const char *) const;
137 template const char *Protocol::BasicSerializer<double>::deserialize(double &, const char *, const char *) const;
140 Protocol::StringSerializer::StringSerializer(const Protocol &p):
144 char *Protocol::StringSerializer::serialize(const string &str, char *buf, char *end) const
146 buf = length_serializer.serialize(str.size(), buf, end);
147 if(end-buf<static_cast<int>(str.size()))
148 throw buffer_error("overflow");
149 copy(str.begin(), str.end(), buf);
150 return buf+str.size();
153 const char *Protocol::StringSerializer::deserialize(string &str, const char *buf, const char *end) const
156 buf = length_serializer.deserialize(length, buf, end);
157 if(end-buf<static_cast<int>(length))
158 throw buffer_error("underflow");
159 str.assign(buf, buf+length);
164 Protocol::PacketDefBase::PacketDefBase(unsigned i):
169 Protocol::PacketHeader::PacketHeader():
174 Protocol::PacketHeader::PacketHeader(uint16_t t, uint16_t l):