138 lines
3.7 KiB
C++
138 lines
3.7 KiB
C++
/*
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Minetest
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Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include "util/pointer.h"
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#include "util/numeric.h"
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#include "networkprotocol.h"
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#include <SColor.h>
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class NetworkPacket
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{
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public:
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NetworkPacket(u16 command, u32 datasize, session_t peer_id);
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NetworkPacket(u16 command, u32 datasize);
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NetworkPacket() = default;
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~NetworkPacket();
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void putRawPacket(const u8 *data, u32 datasize, session_t peer_id);
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void clear();
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// Getters
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u32 getSize() const { return m_datasize; }
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session_t getPeerId() const { return m_peer_id; }
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u16 getCommand() { return m_command; }
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u32 getRemainingBytes() const { return m_datasize - m_read_offset; }
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const char *getRemainingString() { return getString(m_read_offset); }
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// Returns a c-string without copying.
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// A better name for this would be getRawString()
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const char *getString(u32 from_offset);
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// major difference to putCString(): doesn't write len into the buffer
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void putRawString(const char *src, u32 len);
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void putRawString(const std::string &src)
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{
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putRawString(src.c_str(), src.size());
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}
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NetworkPacket &operator>>(std::string &dst);
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NetworkPacket &operator<<(const std::string &src);
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void putLongString(const std::string &src);
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NetworkPacket &operator>>(std::wstring &dst);
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NetworkPacket &operator<<(const std::wstring &src);
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std::string readLongString();
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NetworkPacket &operator>>(char &dst);
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NetworkPacket &operator<<(char src);
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NetworkPacket &operator>>(bool &dst);
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NetworkPacket &operator<<(bool src);
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u8 getU8(u32 offset);
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NetworkPacket &operator>>(u8 &dst);
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NetworkPacket &operator<<(u8 src);
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u8 *getU8Ptr(u32 offset);
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u16 getU16(u32 from_offset);
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NetworkPacket &operator>>(u16 &dst);
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NetworkPacket &operator<<(u16 src);
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NetworkPacket &operator>>(u32 &dst);
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NetworkPacket &operator<<(u32 src);
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NetworkPacket &operator>>(u64 &dst);
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NetworkPacket &operator<<(u64 src);
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NetworkPacket &operator>>(float &dst);
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NetworkPacket &operator<<(float src);
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NetworkPacket &operator>>(v2f &dst);
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NetworkPacket &operator<<(v2f src);
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NetworkPacket &operator>>(v3f &dst);
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NetworkPacket &operator<<(v3f src);
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NetworkPacket &operator>>(s16 &dst);
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NetworkPacket &operator<<(s16 src);
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NetworkPacket &operator>>(s32 &dst);
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NetworkPacket &operator<<(s32 src);
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NetworkPacket &operator>>(v2s32 &dst);
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NetworkPacket &operator<<(v2s32 src);
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NetworkPacket &operator>>(v3s16 &dst);
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NetworkPacket &operator<<(v3s16 src);
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NetworkPacket &operator>>(v3s32 &dst);
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NetworkPacket &operator<<(v3s32 src);
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NetworkPacket &operator>>(video::SColor &dst);
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NetworkPacket &operator<<(video::SColor src);
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// Temp, we remove SharedBuffer when migration finished
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// ^ this comment has been here for 4 years
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Buffer<u8> oldForgePacket();
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private:
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void checkReadOffset(u32 from_offset, u32 field_size);
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inline void checkDataSize(u32 field_size)
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{
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if (m_read_offset + field_size > m_datasize) {
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m_datasize = m_read_offset + field_size;
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m_data.resize(m_datasize);
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}
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}
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std::vector<u8> m_data;
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u32 m_datasize = 0;
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u32 m_read_offset = 0;
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u16 m_command = 0;
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session_t m_peer_id = 0;
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};
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