packets.cpp File Reference

Implementation of Packet objects input/output. More...

#include <hn/hnprec.h>
#include <hn/osdep.h>
#include <hn/partdata.h>
#include <boost/tuple/tuple.hpp>
#include <boost/random/mersenne_twister.hpp>
#include "packets.h"
#include "ed2k.h"
#include "serverlist.h"
#include "tag.h"
#include "ed2kfile.h"
#include "zutils.h"
#include <bitset>

Go to the source code of this file.


Namespaces
namespace	ED2KPacket
Functions
uint64_t	getOverheadUp ()
uint64_t	getOverheadDn ()
void	addOverheadDn (uint32_t amount)
std::vector< bool >	makePartMap (const PartData *pd)
	Generates chunk map, as specified by eDonkey2000 protocol.
void	writePartMap (std::ostream &o, const std::vector< bool > &partMap)
void	readPartMap (std::istream &i, std::vector< bool > *partMap)
Variables
boost::mt19937	getRandom
uint64_t	s_overheadUpSize = 0
uint64_t	s_overheadDnSize = 0

Detailed Description

Implementation of Packet objects input/output.

This file basically includes the entire eDonkey2000 protocol packets reading writing. As such, this file grows rather big over time. In addition to that, this file also needs to include large amount of ed2k module headers, since we want the packet objects to be as self-contained as possible, requiring minimum amount of construction arguments for easier usage. If this file grows beyond our management capabilities, it could be broken up into several smaller files, based on some criteria.

Definition in file packets.cpp.

Function Documentation

uint64_t ED2KPacket::getOverheadUp

(

)

Definition at line 55 of file packets.cpp.

References ED2KPacket::s_overheadUpSize.

Referenced by ClientList::checkOpenMoreSlots().

uint64_t ED2KPacket::getOverheadDn

(

)

Definition at line 56 of file packets.cpp.

References ED2KPacket::s_overheadDnSize.

Referenced by ClientList::checkOpenMoreSlots().

void ED2KPacket::addOverheadDn

(

uint32_t

amount

)

Definition at line 57 of file packets.cpp.

References ED2KPacket::s_overheadDnSize.

Referenced by ED2KParser< Parent >::readPacket().

std::vector<bool> makePartMap

(

const PartData *

)

Generates chunk map, as specified by eDonkey2000 protocol.

This means the vector is filled with bitfields, where each 'true' bit indicates we have the 9.28MB part, and each 'false' bit indicates we do not have that part. Empty partmap indicates the entire file is available. Leftover bits are padded with zeros.

Note that PartData API now supports this internally, so when possible, we attempt to aquire this data from PartData. However, if that fails, we still generate it ourselves here.

Definition at line 70 of file packets.cpp.

Referenced by ED2KPacket::FileStatus::FileStatus(), ED2KPacket::ReaskAck::ReaskAck(), ED2KPacket::ReaskFilePing::ReaskFilePing(), and ED2KPacket::ReqFile::ReqFile().