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Location: cpp/openttd-patchpack/source/src/network/core/packet.h - annotation
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(svn r17380) -Codechange: move drawing the performance detail data to DrawWidget
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/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file packet.h Basic functions to create, fill and read packets.
*/
#ifndef NETWORK_CORE_PACKET_H
#define NETWORK_CORE_PACKET_H
#ifdef ENABLE_NETWORK
#include "config.h"
#include "core.h"
typedef uint16 PacketSize; ///< Size of the whole packet.
typedef uint8 PacketType; ///< Identifier for the packet
/**
* Internal entity of a packet. As everything is sent as a packet,
* all network communication will need to call the functions that
* populate the packet.
* Every packet can be at most SEND_MTU bytes. Overflowing this
* limit will give an assertion when sending (i.e. writing) the
* packet. Reading past the size of the packet when receiving
* will return all 0 values and "" in case of the string.
*/
struct Packet {
/** The next packet. Used for queueing packets before sending. */
Packet *next;
/** The size of the whole packet for received packets. For packets
* that will be sent, the value is filled in just before the
* actual transmission. */
PacketSize size;
/** The current read/write position in the packet */
PacketSize pos;
/** The buffer of this packet */
byte buffer[SEND_MTU];
private:
NetworkSocketHandler *cs;
public:
Packet(NetworkSocketHandler *cs);
Packet(PacketType type);
/* Sending/writing of packets */
void PrepareToSend();
void Send_bool (bool data);
void Send_uint8 (uint8 data);
void Send_uint16(uint16 data);
void Send_uint32(uint32 data);
void Send_uint64(uint64 data);
void Send_string(const char *data);
/* Reading/receiving of packets */
void ReadRawPacketSize();
void PrepareToRead();
bool CanReadFromPacket (uint bytes_to_read);
bool Recv_bool ();
uint8 Recv_uint8 ();
uint16 Recv_uint16();
uint32 Recv_uint32();
uint64 Recv_uint64();
void Recv_string(char *buffer, size_t size, bool allow_newlines = false);
};
Packet *NetworkSend_Init(PacketType type);
#endif /* ENABLE_NETWORK */
#endif /* NETWORK_CORE_PACKET_H */
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