Updating tracker in bit torrent

The reasoning and common techniques behind choking are explained later in this document.

Data transfer takes place whenever one side is interested and the other side is not choking.

updating tracker in bit torrent-10

After the download hash comes the 20-byte peer id which is reported in tracker requests and contained in peer lists in tracker responses.

If the receiving side's peer id doesn't match the one the initiating side expects, it severs the connection.

The files list is the value - A list of UTF-8 encoded strings corresponding to subdirectory names, the last of which is the actual file name (a zero length list is an error case).

In the single file case, the name key is the name of a file, in the muliple file case, it's the name of a directory.

Connections contain two bits of state on either end: choked or not, and interested or not.

Choking is a notification that no data will be sent until unchoking happens.

The peer wire protocol consists of a handshake followed by a never-ending stream of length-prefixed messages.

The handshake starts with character ninteen (decimal) followed by the string 'Bit Torrent protocol'.

maps to the number of bytes in each piece the file is split into.

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