172 lines
4.2 KiB
C
Executable File
172 lines
4.2 KiB
C
Executable File
#include "Serialization.h"
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// If included from within the NMT Creation process, perform a pass
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#ifdef CREATING_NMT
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#include NMT_CREATE_HEADER_NAME
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#undef START_NMTS
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#undef END_NMTS
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#undef START_NMT_CLASS
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#undef NMT_FIELD_INT
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#undef NMT_FIELD
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#undef END_NMT_CLASS
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#else
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// If not within the creation process, and called with argument, perform the
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// creation process with the header specified
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#ifdef NMT_CREATE_HEADER_NAME
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#define CREATING_NMT
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/*************************************************************************/
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// Pass 1, class definition
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#define START_NMTS()
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#define END_NMTS()
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/**
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* Start the definition of a network message type.
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*
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* @param _nm The name of the class
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* @param _tp The NetMessageType associated with the class. IT is *not* safe to
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* have several classes with the same value of _tp in the same executable
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*/
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#define START_NMT_CLASS(_nm, _tp) \
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CNetMessage *Deserialize##_nm(const u8 *, uint); \
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struct _nm: public CNetMessage \
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{ \
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_nm(): CNetMessage(_tp) {} \
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virtual uint GetSerializedLength() const; \
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virtual void Serialize(u8 *buffer) const;
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/**
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* Add an integer field to the message type.
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*
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* @param _nm The name of the field
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* @param _hosttp The local type of the field (the data type used in the field
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* definition)
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* @param _netsz The number of bytes that should be serialized. If the variable
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* has a value larger than the maximum value of the specified network size,
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* higher order bytes will be discarded.
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*/
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#define NMT_FIELD_INT(_nm, _hosttp, _netsz) \
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_hosttp _nm;
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/**
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* Add a generic field to the message type. The data type must be a class
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* implementing the ISerializable interface
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*
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* @param _tp The local data type of the field
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* @param _nm The name of the field
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* @see ISerializable
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*/
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#define NMT_FIELD(_tp, _nm) \
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_tp _nm;
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#define END_NMT_CLASS() };
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#include "NMTCreator.h"
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#ifdef NMT_CREATOR_IMPLEMENT
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/*************************************************************************/
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// Pass 2, GetSerializedLength
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#define START_NMTS()
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#define END_NMTS()
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#define START_NMT_CLASS(_nm, _tp) \
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uint _nm::GetSerializedLength() const \
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{ \
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uint ret=0;
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#define NMT_FIELD_INT(_nm, _hosttp, _netsz) \
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ret += _netsz;
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#define NMT_FIELD(_tp, _nm) \
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ret += _nm.GetSerializedLength();
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#define END_NMT_CLASS() \
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return ret; \
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};
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#include "NMTCreator.h"
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/*************************************************************************/
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// Pass 3, Serialize
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#define START_NMTS()
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#define END_NMTS()
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#define START_NMT_CLASS(_nm, _tp) \
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void _nm::Serialize(u8 *buffer) const \
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{ \
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/*printf("In " #_nm "::Serialize()\n");*/ \
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u8 *pos=buffer; \
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#define NMT_FIELD_INT(_nm, _hosttp, _netsz) \
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Serialize_int_##_netsz(pos, _nm); \
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#define NMT_FIELD(_tp, _nm) \
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pos=_nm.Serialize(pos);
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#define END_NMT_CLASS() }
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#include "NMTCreator.h"
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/*************************************************************************/
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// Pass 4, Deserialize
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#define START_NMTS()
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#define END_NMTS()
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#define BAIL_DESERIALIZER STMT( delete ret; return NULL; )
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#define START_NMT_CLASS(_nm, _tp) \
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CNetMessage *Deserialize##_nm(const u8 *buffer, uint length) \
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{ \
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/*printf("In Deserialize" #_nm "\n"); */\
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_nm *ret=new _nm(); \
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const u8 *pos=buffer; \
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const u8 *end=buffer+length; \
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#define NMT_FIELD_INT(_nm, _hosttp, _netsz) \
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if (pos+_netsz >= end) BAIL_DESERIALIZER; \
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Deserialize_int_##_netsz(pos, (ret->_nm)); \
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/*printf("\t" #_nm " == 0x%x\n", ret->_nm);*/
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#define NMT_FIELD(_tp, _nm) \
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if ((pos=ret->_nm.Deserialize(pos, end)) == NULL) BAIL_DESERIALIZER;
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#define END_NMT_CLASS() \
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return ret; \
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}
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#include "NMTCreator.h"
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#undef BAIL_DESERIALIZER
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/*************************************************************************/
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// Pass 5, Deserializer Registration
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#define START_NMTS() SNetMessageDeserializerRegistration g_DeserializerRegistrations[] = {
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#define END_NMTS() { NMT_NONE, NULL } };
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#define START_NMT_CLASS(_nm, _tp) \
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{ _tp, Deserialize##_nm },
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#define NMT_FIELD_INT(_nm, _hosttp, _netsz)
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#define NMT_FIELD(_tp, _nm)
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#define END_NMT_CLASS()
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#include "NMTCreator.h"
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#endif // #ifdef NMT_CREATOR_IMPLEMENT
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/*************************************************************************/
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// Cleanup
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#undef NMT_CREATE_HEADER_NAME
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#undef NMT_CREATOR_IMPLEMENT
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#undef CREATING_NMT
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#endif // #ifdef NMT_CREATE_HEADER_NAME
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#endif // #ifndef CREATING_NMT
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