133 lines
2.7 KiB
C++
133 lines
2.7 KiB
C++
// cPacket.cpp: implementation of the cPacket class.
|
|
//
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
#include "stdafx.h"
|
|
#include "cPacket.h"
|
|
#include "../include/Constant.h"
|
|
|
|
|
|
|
|
uint32 cPacket::m_maxLength = 1024 * 16;
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Construction/Destruction
|
|
//////////////////////////////////////////////////////////////////////
|
|
|
|
cPacket::cPacket(const uint32 encoding) : m_compressor(NULL), m_decompressor(NULL), m_length(0), m_encoding(encoding)
|
|
{
|
|
m_buffer = new uint8[m_maxLength];
|
|
ZeroMemory(m_buffer, m_maxLength);
|
|
}
|
|
|
|
cPacket::~cPacket()
|
|
{
|
|
if(m_buffer)
|
|
{
|
|
delete []m_buffer;
|
|
m_buffer = NULL;
|
|
}
|
|
if(m_compressor)
|
|
{
|
|
delete []m_compressor;
|
|
m_compressor = NULL;
|
|
}
|
|
if(m_decompressor)
|
|
{
|
|
delete []m_decompressor;
|
|
m_decompressor = NULL;
|
|
}
|
|
}
|
|
|
|
BOOL cPacket::Make(const uint16 command, const uint8 *data, const uint16 length, const uint8 sequence)
|
|
{
|
|
if(0 == sequence)
|
|
{
|
|
return Pack(command, data, length, sequence);
|
|
}
|
|
|
|
switch(m_encoding)
|
|
{
|
|
case ENCRYPT_OFF: // 비압축
|
|
{
|
|
return Pack(command, data, length, sequence);
|
|
}
|
|
break;
|
|
|
|
case ENCRYPT_ON: // 압축
|
|
{
|
|
CreateCompressor();
|
|
|
|
uint32 result = cEncrypt::Compress(data, length, m_compressor);
|
|
return Pack(command, m_compressor, static_cast<uint16>(result), sequence);
|
|
}
|
|
break;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL cPacket::Pack(const uint16 command, const uint8 *data, const uint16 length, const uint8 sequence)
|
|
{
|
|
// 총 길이
|
|
m_length = length + sizeof(cHeader);
|
|
if(m_length < m_maxLength)
|
|
{
|
|
// Header 설정
|
|
m_header.SetHeader(length, command, sequence);
|
|
CopyMemory(m_buffer, reinterpret_cast<uint8*>(&m_header), sizeof(cHeader));
|
|
|
|
// Payload 복사
|
|
CopyMemory(m_buffer+sizeof(cHeader), data, length);
|
|
return TRUE;
|
|
}
|
|
|
|
m_length = 0;
|
|
return FALSE;
|
|
}
|
|
|
|
BOOL cPacket::Decode(uint8 *buffer, const uint32 length, const uint8 sequence, uint32& result)
|
|
{
|
|
if(0 == sequence)
|
|
return FALSE;
|
|
|
|
switch(m_encoding)
|
|
{
|
|
case ENCRYPT_OFF: // 비압축
|
|
{
|
|
return FALSE;
|
|
}
|
|
break;
|
|
|
|
case ENCRYPT_ON: // 압축해제
|
|
{
|
|
CreateDecompressor();
|
|
result = Decompress(buffer, length, m_decompressor);
|
|
return TRUE;
|
|
}
|
|
break;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
void cPacket::CreateCompressor()
|
|
{
|
|
if(NULL == m_compressor)
|
|
{
|
|
static uint32 length = 1024*16;
|
|
|
|
m_compressor = new uint8[length];
|
|
ZeroMemory(m_compressor, length);
|
|
}
|
|
}
|
|
|
|
void cPacket::CreateDecompressor()
|
|
{
|
|
if(NULL == m_decompressor)
|
|
{
|
|
static uint32 length = 1024*16;
|
|
|
|
m_decompressor = new uint8[length];
|
|
ZeroMemory(m_decompressor, length);
|
|
}
|
|
}
|