Files
azerothcore-wotlk/src/server/game/Server/Protocol/ServerPktHeader.h

63 lines
1.7 KiB
C

/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __SERVERPKTHDR_H__
#define __SERVERPKTHDR_H__
#include "Log.h"
#pragma pack(push, 1)
struct ServerPktHeader
{
/**
* size is the length of the payload _plus_ the length of the opcode
*/
ServerPktHeader(uint32 size, uint16 cmd) : size(size)
{
uint8 headerIndex=0;
if (isLargePacket())
{
LOG_DEBUG("network", "initializing large server to client packet. Size: {}, cmd: {}", size, cmd);
header[headerIndex++] = 0x80 | (0xFF & (size >> 16));
}
header[headerIndex++] = 0xFF &(size >> 8);
header[headerIndex++] = 0xFF & size;
header[headerIndex++] = 0xFF & cmd;
header[headerIndex++] = 0xFF & (cmd >> 8);
}
uint8 getHeaderLength()
{
// cmd = 2 bytes, size= 2||3bytes
return 2 + (isLargePacket() ? 3 : 2);
}
bool isLargePacket() const
{
return size > 0x7FFF;
}
const uint32 size;
uint8 header[5];
};
#pragma pack(pop)
#endif