Version: 2.0.0

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announce_infohash

Declared in "libtorrent/announce_entry.hpp"

struct announce_infohash
{
   std::string message;
   error_code last_error;
   int scrape_incomplete  = -1;
   int scrape_complete  = -1;
   int scrape_downloaded  = -1;
   std::uint8_t fails : 7;
   bool updating : 1;
   bool start_sent : 1;
   bool complete_sent : 1;
};
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message
if this tracker has returned an error or warning message that message is stored here
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last_error
if this tracker failed the last time it was contacted this error code specifies what error occurred
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scrape_incomplete scrape_complete scrape_downloaded
if this tracker has returned scrape data, these fields are filled in with valid numbers. Otherwise they are set to -1. incomplete counts the number of current downloaders. complete counts the number of current peers completed the download, or "seeds". downloaded is the cumulative number of completed downloads.
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fails
the number of times in a row we have failed to announce to this tracker.
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updating
true while we're waiting for a response from the tracker.
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start_sent
set to true when we get a valid response from an announce with event=started. If it is set, we won't send start in the subsequent announces.
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complete_sent
set to true when we send a event=completed.
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announce_endpoint

Declared in "libtorrent/announce_entry.hpp"

announces are sent to each tracker using every listen socket this class holds information about one listen socket for one tracker

struct announce_endpoint
{
   announce_endpoint ();

   tcp::endpoint local_endpoint;
   aux::array<announce_infohash, num_protocols, protocol_version> info_hashes;
   bool enabled  = true;
};
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local_endpoint
the local endpoint of the listen interface associated with this endpoint
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info_hashes
info_hashes[0] is the v1 info hash (SHA1) info_hashes[1] is the v2 info hash (truncated SHA-256)
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enabled
set to false to not announce from this endpoint
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announce_entry

Declared in "libtorrent/announce_entry.hpp"

this class holds information about one bittorrent tracker, as it relates to a specific torrent.

struct announce_entry
{
   ~announce_entry ();
   announce_entry& operator= (announce_entry const&) &;
   explicit announce_entry (string_view u);
   announce_entry (announce_entry const&);
   announce_entry ();

   enum tracker_source
   {
      source_torrent,
      source_client,
      source_magnet_link,
      source_tex,
   };

   std::string url;
   std::string trackerid;
   std::vector<announce_endpoint> endpoints;
   std::uint8_t tier  = 0;
   std::uint8_t fail_limit  = 0;
   std::uint8_t source:4;
   bool verified:1;
};
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operator=() announce_entry() ~announce_entry()

~announce_entry ();
announce_entry& operator= (announce_entry const&) &;
explicit announce_entry (string_view u);
announce_entry (announce_entry const&);
announce_entry ();

constructs a tracker announce entry with u as the URL.

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enum tracker_source

Declared in "libtorrent/announce_entry.hpp"

name value description
source_torrent 1 the tracker was part of the .torrent file
source_client 2 the tracker was added programmatically via the add_tracker() function
source_magnet_link 4 the tracker was part of a magnet link
source_tex 8 the tracker was received from the swarm via tracker exchange
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url
tracker URL as it appeared in the torrent file
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trackerid
the current &trackerid= argument passed to the tracker. this is optional and is normally empty (in which case no trackerid is sent).
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endpoints
each local listen socket (endpoint) will announce to the tracker. This list contains state per endpoint.
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tier
the tier this tracker belongs to
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fail_limit
the max number of failures to announce to this tracker in a row, before this tracker is not used anymore. 0 means unlimited
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source
a bitmask specifying which sources we got this tracker from.
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verified
set to true the first time we receive a valid response from this tracker.