Provide access to packet IDs in Protcool

[libs/net.git] / source / net / protocol.cpp

diff --git a/source/net/protocol.cpp b/source/net/protocol.cpp
index c6112923c9692db7f4b646f11d68e0a8e6e753a0..358966f643152804ebc0e1b68a3c193179e2a4de 100644 (file)
--- a/source/net/protocol.cpp
+++ b/source/net/protocol.cpp
@@ -44,6 +44,13 @@ const Protocol::PacketDefBase &Protocol::get_packet_by_id(unsigned id) const
        return *get_item(packet_id_defs, id);
 }
 
+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;
@@ -55,13 +62,18 @@ size_t Protocol::dispatch(ReceiverBase &rcv, const char *buf, size_t size, unsig
        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