mirror of
https://github.com/transmission/transmission
synced 2024-12-25 01:03:01 +00:00
8183d7fddf
* chore: rename tr_strvContains to tr_strv_contains * chore: rename tr_strvStartsWith to tr_strv_starts_with * chore: rename tr_strvEndsWith to tr_strv_ends_with * chore: rename tr_strvSep to tr_strv_sep * chore: rename tr_strvStrip to tr_strv_strip * chore: rename tr_strvToBuf to tr_strv_to_buf * refactor: rename tr_saveFile() to tr_file_save() rename tr_loadFile() to tr_file_read() rename tr_moveFile() to tr_file_move() * refactor: rename tr_parseNum() to tr_num_parse() refactor: rename tr_parseNumRange() to tr_num_parse_range() * chore: group related functions together in header
1635 lines
58 KiB
C++
1635 lines
58 KiB
C++
// This file Copyright © 2006-2023 Transmission authors and contributors.
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// It may be used under the 3-Clause BSD (SPDX: BSD-3-Clause),
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// GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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// This file defines the public API for the libtransmission library.
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#pragma once
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// --- Basic Types
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#include <stddef.h> // size_t
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#include <stdint.h> // uintN_t
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#include <time.h> // time_t
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#ifdef __cplusplus
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#include <string>
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#include <string_view>
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#else
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#include <stdbool.h> // bool
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#endif
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#include "tr-macros.h"
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using tr_file_index_t = size_t;
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using tr_piece_index_t = uint32_t;
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/* Assuming a 16 KiB block (tr_block_info::BlockSize), a 32-bit block index gives us a maximum torrent size of 64 TiB.
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* When we ever need to grow past that, change tr_block_index_t and tr_piece_index_t to uint64_t. */
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using tr_block_index_t = uint32_t;
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using tr_byte_index_t = uint64_t;
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using tr_tracker_tier_t = uint32_t;
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using tr_tracker_id_t = uint32_t;
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using tr_torrent_id_t = int;
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using tr_bytes_per_second_t = size_t;
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using tr_kilobytes_per_second_t = size_t;
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using tr_mode_t = uint16_t;
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struct tr_block_span_t
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{
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tr_block_index_t begin;
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tr_block_index_t end;
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};
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struct tr_byte_span_t
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{
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uint64_t begin;
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uint64_t end;
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};
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struct tr_ctor;
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struct tr_error;
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struct tr_session;
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struct tr_torrent;
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struct tr_torrent_metainfo;
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struct tr_variant;
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using tr_priority_t = int8_t;
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#define TR_RPC_SESSION_ID_HEADER "X-Transmission-Session-Id"
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enum tr_verify_added_mode
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{
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// See discussion @ https://github.com/transmission/transmission/pull/2626
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// Let newly-added torrents skip upfront verify do it on-demand later.
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TR_VERIFY_ADDED_FAST = 0,
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// Force torrents to be fully verified as they are added.
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TR_VERIFY_ADDED_FULL = 1
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};
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enum tr_preallocation_mode
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{
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TR_PREALLOCATE_NONE = 0,
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TR_PREALLOCATE_SPARSE = 1,
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TR_PREALLOCATE_FULL = 2
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};
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enum tr_encryption_mode
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{
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TR_CLEAR_PREFERRED,
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TR_ENCRYPTION_PREFERRED,
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TR_ENCRYPTION_REQUIRED
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};
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#define TR_RATIO_NA (-1)
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#define TR_RATIO_INF (-2)
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// --- Startup & Shutdown
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/**
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* @addtogroup tr_session Session
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*
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* A libtransmission session is created by calling `tr_sessionInit()`.
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* libtransmission creates a thread for itself so that it can operate
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* independently of the caller's event loop. The session will continue
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* until `tr_sessionClose()` is called.
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*
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* @{
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*/
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/**
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* @brief get Transmission's default configuration file directory.
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*
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* The default configuration directory is determined this way:
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* -# If the `TRANSMISSION_HOME` environment variable is set, its value is used.
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* -# On Darwin, `"${HOME}/Library/Application Support/${appname}"` is used.
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* -# On Windows, `"${CSIDL_APPDATA}/${appname}"` is used.
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* -# If `XDG_CONFIG_HOME` is set, `"${XDG_CONFIG_HOME}/${appname}"` is used.
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* -# `"${HOME}/.config/${appname}"` is used as a last resort.
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*/
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#ifdef __cplusplus
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[[nodiscard]] std::string tr_getDefaultConfigDir(std::string_view appname);
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#endif
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/** @brief buffer variant of `tr_getDefaultConfigDir()`. See `tr_strv_to_buf()`. */
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size_t tr_getDefaultConfigDirToBuf(char const* appname, char* buf, size_t buflen);
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/**
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* @brief returns Transmission's default download directory.
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*
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* The default download directory is determined this way:
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* -# If the `HOME` environment variable is set, `"${HOME}/Downloads"` is used.
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* -# On Windows, `"${CSIDL_MYDOCUMENTS}/Downloads"` is used.
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* -# Otherwise, `getpwuid(getuid())->pw_dir + "/Downloads"` is used.
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*/
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#ifdef __cplusplus
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[[nodiscard]] std::string tr_getDefaultDownloadDir();
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#endif
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/** @brief buffer variant of `tr_getDefaultDownloadDir()`. See `tr_strv_to_buf()`. */
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size_t tr_getDefaultDownloadDirToBuf(char* buf, size_t buflen);
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#define TR_DEFAULT_RPC_WHITELIST "127.0.0.1,::1"
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#define TR_DEFAULT_RPC_PORT_STR "9091"
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#define TR_DEFAULT_RPC_PORT 9091
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#define TR_DEFAULT_RPC_URL_STR "/transmission/"
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#define TR_DEFAULT_PEER_PORT_STR "51413"
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#define TR_DEFAULT_PEER_PORT 51413
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#define TR_DEFAULT_PEER_SOCKET_TOS_STR "le"
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#define TR_DEFAULT_PEER_LIMIT_GLOBAL_STR "200"
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#define TR_DEFAULT_PEER_LIMIT_GLOBAL 200
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#define TR_DEFAULT_PEER_LIMIT_TORRENT_STR "50"
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#define TR_DEFAULT_PEER_LIMIT_TORRENT 50
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/**
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* Add libtransmission's default settings to the benc dictionary.
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*
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* Example:
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* @code
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* tr_variant settings;
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* int64_t i;
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*
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* tr_variantInitDict(&settings, 0);
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* tr_sessionGetDefaultSettings(&settings);
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* if (tr_variantDictFindInt(&settings, TR_PREFS_KEY_PEER_PORT, &i))
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* fprintf(stderr, "the default peer port is %d\n", (int)i);
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* tr_variantClear(&settings);
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* @endcode
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*
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* @param setme_dictionary pointer to a tr_variant dictionary
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* @see `tr_sessionLoadSettings()`
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* @see `tr_sessionInit()`
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* @see `tr_getDefaultConfigDir()`
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*/
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void tr_sessionGetDefaultSettings(struct tr_variant* setme_dictionary);
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/**
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* Add the session's current configuration settings to the benc dictionary.
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*
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* TODO: if we ever make libtransmissionapp, this would go there.
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*
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* @param session the session to query
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* @param setme_dictionary the dictionary to populate
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* @see `tr_sessionGetDefaultSettings()`
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*/
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void tr_sessionGetSettings(tr_session const* session, struct tr_variant* setme_dictionary);
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/**
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* Load settings from the configuration directory's settings.json file,
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* using libtransmission's default settings as fallbacks for missing keys.
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*
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* TODO: if we ever make libtransmissionapp, this would go there.
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*
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* @param dictionary pointer to an uninitialized tr_variant
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* @param config_dir the configuration directory to find settings.json
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* @param app_name if config_dir is empty, app_name is used to find the default dir.
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* @return success true if the settings were loaded, false otherwise
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* @see `tr_sessionGetDefaultSettings()`
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* @see `tr_sessionInit()`
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* @see `tr_sessionSaveSettings()`
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*/
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bool tr_sessionLoadSettings(struct tr_variant* dictionary, char const* config_dir, char const* app_name);
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/**
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* Add the session's configuration settings to the benc dictionary
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* and save it to the configuration directory's settings.json file.
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*
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* TODO: if we ever make libtransmissionapp, this would go there.
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*
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* @param session the session to save
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* @param config_dir the directory to write to
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* @param client_settings the dictionary to save
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* @see `tr_sessionLoadSettings()`
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*/
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void tr_sessionSaveSettings(tr_session* session, char const* config_dir, struct tr_variant const* client_settings);
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/**
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* @brief Initialize a libtransmission session.
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*
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* For example, this will instantiate a session with all the default values:
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* @code
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* tr_variant settings;
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* tr_session* session;
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* char const* configDir;
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*
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* tr_variantInitDict(&settings, 0);
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* tr_sessionGetDefaultSettings(&settings);
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* configDir = tr_getDefaultConfigDir("Transmission");
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* session = tr_sessionInit(configDir, true, &settings);
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*
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* tr_variantClear(&settings);
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* @endcode
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*
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* @param config_dir where Transmission will look for resume files, blocklists, etc.
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* @param message_queueing_enabled if false, messages will be dumped to stderr
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* @param settings libtransmission settings
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* @see `tr_sessionGetDefaultSettings()`
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* @see `tr_sessionLoadSettings()`
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* @see `tr_getDefaultConfigDir()`
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*/
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tr_session* tr_sessionInit(char const* config_dir, bool message_queueing_enabled, struct tr_variant* settings);
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/** @brief Update a session's settings from a benc dictionary
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like to the one used in `tr_sessionInit()` */
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void tr_sessionSet(tr_session* session, struct tr_variant* settings);
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/** @brief Rescan the blocklists directory and
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reload whatever blocklist files are found there */
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void tr_sessionReloadBlocklists(tr_session* session);
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/**
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* @brief End a libtransmission session.
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* @see `tr_sessionInit()`
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*
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* This may take some time while &event=stopped announces are sent to trackers.
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*
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* @param timeout_secs specifies how long to wait on these announces.
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*/
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void tr_sessionClose(tr_session* session, size_t timeout_secs = 15);
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/**
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* @brief Return the session's configuration directory.
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*
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* This is where transmission stores its torrent files, .resume files,
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* blocklists, etc. It's set in `tr_transmissionInit()` and is immutable
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* during the session.
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*/
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char const* tr_sessionGetConfigDir(tr_session const* session);
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/**
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* @brief Get the default download folder for new torrents.
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*
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* This is set by `tr_sessionInit()` or `tr_sessionSetDownloadDir()`,
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* and can be overridden on a per-torrent basis by `tr_ctorSetDownloadDir()`.
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*/
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char const* tr_sessionGetDownloadDir(tr_session const* session);
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/**
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* @brief Set the per-session default download folder for new torrents.
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* @see `tr_sessionInit()`
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* @see `tr_sessionGetDownloadDir()`
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* @see `tr_ctorSetDownloadDir()`
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*/
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void tr_sessionSetDownloadDir(tr_session* session, char const* download_dir);
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/** @brief get the per-session incomplete download folder */
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char const* tr_sessionGetIncompleteDir(tr_session const* session);
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/**
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* @brief set the per-session incomplete download folder.
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*
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* When you add a new torrent and the session's incomplete directory is enabled,
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* the new torrent will start downloading into that directory, and then be moved
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* to `tr_torrent.downloadDir` when the torrent is finished downloading.
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*
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* Torrents aren't moved as a result of changing the session's incomplete dir --
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* it's applied to new torrents, not existing ones.
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*
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* `tr_torrentSetLocation()` overrules the incomplete dir: when a user specifies
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* a new location, that becomes the torrent's new `download_dir` and the torrent
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* is moved there immediately regardless of whether or not it's complete.
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*
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* @see `tr_sessionInit()`
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* @see `tr_sessionGetIncompleteDir()`
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* @see `tr_sessionSetIncompleteDirEnabled()`
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* @see `tr_sessionGetIncompleteDirEnabled()`
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*/
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void tr_sessionSetIncompleteDir(tr_session* session, char const* dir);
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/** @brief get whether or not the incomplete download folder is enabled */
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bool tr_sessionIsIncompleteDirEnabled(tr_session const* session);
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/** @brief enable or disable use of the incomplete download folder */
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void tr_sessionSetIncompleteDirEnabled(tr_session* session, bool enabled);
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/** @brief return true if files will end in ".part" until they're complete */
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bool tr_sessionIsIncompleteFileNamingEnabled(tr_session const* session);
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/**
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* @brief When enabled, newly-created files will have ".part" appended
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* to their filename until the file is fully downloaded
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*
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* This is not retroactive -- toggling this will not rename existing files.
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* It only applies to new files created by Transmission after this API call.
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*
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* @see `tr_sessionIsIncompleteFileNamingEnabled()`
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*/
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void tr_sessionSetIncompleteFileNamingEnabled(tr_session* session, bool enabled);
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/** @brief Get whether or not RPC calls are allowed in this session.
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@see `tr_sessionInit()`
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@see `tr_sessionSetRPCEnabled()` */
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bool tr_sessionIsRPCEnabled(tr_session const* session);
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/**
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* @brief Set whether or not RPC calls are allowed in this session.
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*
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* @details If true, libtransmission will open a server socket to listen
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* for incoming http RPC requests as described in docs/rpc-spec.md.
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*
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* This is initially set by `tr_sessionInit()` and can be
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* queried by `tr_sessionIsRPCEnabled()`.
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*/
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void tr_sessionSetRPCEnabled(tr_session* session, bool is_enabled);
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/** @brief Get which port to listen for RPC requests on.
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@see `tr_sessionInit()`
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@see `tr_sessionSetRPCPort` */
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uint16_t tr_sessionGetRPCPort(tr_session const* session);
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/** @brief Specify which port to listen for RPC requests on.
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@see `tr_sessionInit()`
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@see `tr_sessionGetRPCPort` */
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void tr_sessionSetRPCPort(tr_session* session, uint16_t port);
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/** @brief get the Access Control List for allowing/denying RPC requests.
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@return a comma-separated string of whitelist domains.
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@see `tr_sessionInit`
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@see `tr_sessionSetRPCWhitelist` */
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char const* tr_sessionGetRPCWhitelist(tr_session const* session);
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/**
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* @brief Specify a whitelist for remote RPC access
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*
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* The whitelist is a comma-separated list of dotted-quad IP addresses
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* to be allowed. Wildmat notation is supported, meaning that
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* `'?'` is interpreted as a single-character wildcard and
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* `'*'` is interpreted as a multi-character wildcard.
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*/
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void tr_sessionSetRPCWhitelist(tr_session* session, char const* whitelist);
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bool tr_sessionGetRPCWhitelistEnabled(tr_session const* session);
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void tr_sessionSetRPCWhitelistEnabled(tr_session* session, bool is_enabled);
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// TODO(ckerr): rename function to indicate it returns the salted value
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/** @brief get the salted version of the password used to restrict RPC requests.
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@return the password string.
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@see `tr_sessionInit()`
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@see `tr_sessionSetRPCPassword()` */
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char const* tr_sessionGetRPCPassword(tr_session const* session);
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void tr_sessionSetRPCPassword(tr_session* session, char const* password);
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char const* tr_sessionGetRPCUsername(tr_session const* session);
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void tr_sessionSetRPCUsername(tr_session* session, char const* username);
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bool tr_sessionIsRPCPasswordEnabled(tr_session const* session);
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void tr_sessionSetRPCPasswordEnabled(tr_session* session, bool is_enabled);
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void tr_sessionSetDefaultTrackers(tr_session* session, char const* trackers);
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enum tr_rpc_callback_type
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{
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TR_RPC_TORRENT_ADDED,
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TR_RPC_TORRENT_STARTED,
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TR_RPC_TORRENT_STOPPED,
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TR_RPC_TORRENT_REMOVING,
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TR_RPC_TORRENT_TRASHING, /* _REMOVING + delete local data */
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TR_RPC_TORRENT_CHANGED, /* catch-all for the "torrent-set" rpc method */
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TR_RPC_TORRENT_MOVED,
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TR_RPC_SESSION_CHANGED,
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TR_RPC_SESSION_QUEUE_POSITIONS_CHANGED, /* catch potentially multiple torrents being moved in the queue */
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TR_RPC_SESSION_CLOSE
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};
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enum tr_rpc_callback_status
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{
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/* no special handling is needed by the caller */
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TR_RPC_OK = 0,
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/* indicates to the caller that the client will take care of
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* removing the torrent itself. For example the client may
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* need to keep the torrent alive long enough to cleanly close
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* some resources in another thread. */
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TR_RPC_NOREMOVE = (1 << 1)
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};
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using tr_rpc_func = tr_rpc_callback_status (*)( //
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tr_session* session,
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tr_rpc_callback_type type,
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struct tr_torrent* tor_or_null,
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void* user_data);
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/**
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* Register to be notified whenever something is changed via RPC,
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* such as a torrent being added, removed, started, stopped, etc.
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*
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* func is invoked FROM LIBTRANSMISSION'S THREAD!
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* This means func must be fast (to avoid blocking peers),
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* shouldn't call libtransmission functions (to avoid deadlock),
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* and shouldn't modify client-level memory without using a mutex!
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*/
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void tr_sessionSetRPCCallback(tr_session* session, tr_rpc_func func, void* user_data);
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// ---
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/** @brief Used by `tr_sessionGetStats()` and `tr_sessionGetCumulativeStats()` */
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struct tr_session_stats
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{
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float ratio; /* TR_RATIO_INF, TR_RATIO_NA, or total up/down */
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uint64_t uploadedBytes; /* total up */
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uint64_t downloadedBytes; /* total down */
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uint64_t filesAdded; /* number of files added */
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uint64_t sessionCount; /* program started N times */
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uint64_t secondsActive; /* how long Transmission's been running */
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};
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/** @brief Get bandwidth use statistics for the current session */
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tr_session_stats tr_sessionGetStats(tr_session const* session);
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/** @brief Get cumulative bandwidth statistics for current and past sessions */
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tr_session_stats tr_sessionGetCumulativeStats(tr_session const* session);
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void tr_sessionClearStats(tr_session* session);
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/**
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* @brief Set whether or not torrents are allowed to do peer exchanges.
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*
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* PEX is always disabled in private torrents regardless of this.
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* In public torrents, PEX is enabled by default.
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*/
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bool tr_sessionIsPexEnabled(tr_session const* session);
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void tr_sessionSetPexEnabled(tr_session* session, bool is_enabled);
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bool tr_sessionIsDHTEnabled(tr_session const* session);
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void tr_sessionSetDHTEnabled(tr_session* session, bool is_enabled);
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bool tr_sessionIsUTPEnabled(tr_session const* session);
|
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void tr_sessionSetUTPEnabled(tr_session* session, bool is_enabled);
|
|
|
|
bool tr_sessionIsLPDEnabled(tr_session const* session);
|
|
void tr_sessionSetLPDEnabled(tr_session* session, bool is_enabled);
|
|
|
|
size_t tr_sessionGetCacheLimit_MB(tr_session const* session);
|
|
void tr_sessionSetCacheLimit_MB(tr_session* session, size_t mb);
|
|
|
|
tr_encryption_mode tr_sessionGetEncryption(tr_session const* session);
|
|
void tr_sessionSetEncryption(tr_session* session, tr_encryption_mode mode);
|
|
|
|
// --- Incoming Peer Connections Port
|
|
|
|
bool tr_sessionIsPortForwardingEnabled(tr_session const* session);
|
|
void tr_sessionSetPortForwardingEnabled(tr_session* session, bool enabled);
|
|
|
|
uint16_t tr_sessionGetPeerPort(tr_session const* session);
|
|
void tr_sessionSetPeerPort(tr_session* session, uint16_t port);
|
|
|
|
uint16_t tr_sessionSetPeerPortRandom(tr_session* session);
|
|
|
|
bool tr_sessionGetPeerPortRandomOnStart(tr_session const* session);
|
|
void tr_sessionSetPeerPortRandomOnStart(tr_session* session, bool random);
|
|
|
|
enum tr_port_forwarding_state
|
|
{
|
|
TR_PORT_ERROR,
|
|
TR_PORT_UNMAPPED,
|
|
TR_PORT_UNMAPPING,
|
|
TR_PORT_MAPPING,
|
|
TR_PORT_MAPPED
|
|
};
|
|
|
|
tr_port_forwarding_state tr_sessionGetPortForwarding(tr_session const* session);
|
|
|
|
enum tr_direction
|
|
{
|
|
TR_CLIENT_TO_PEER = 0,
|
|
TR_UP = 0,
|
|
TR_PEER_TO_CLIENT = 1,
|
|
TR_DOWN = 1
|
|
};
|
|
|
|
// --- Session primary speed limits
|
|
|
|
tr_kilobytes_per_second_t tr_sessionGetSpeedLimit_KBps(tr_session const* session, tr_direction dir);
|
|
void tr_sessionSetSpeedLimit_KBps(tr_session* session, tr_direction dir, tr_kilobytes_per_second_t limit);
|
|
|
|
bool tr_sessionIsSpeedLimited(tr_session const* session, tr_direction dir);
|
|
void tr_sessionLimitSpeed(tr_session* session, tr_direction dir, bool limited);
|
|
|
|
// --- Session alt speed limits
|
|
|
|
tr_kilobytes_per_second_t tr_sessionGetAltSpeed_KBps(tr_session const* session, tr_direction dir);
|
|
void tr_sessionSetAltSpeed_KBps(tr_session* session, tr_direction dir, tr_kilobytes_per_second_t limit);
|
|
|
|
bool tr_sessionUsesAltSpeed(tr_session const* session);
|
|
void tr_sessionUseAltSpeed(tr_session* session, bool enabled);
|
|
|
|
bool tr_sessionUsesAltSpeedTime(tr_session const* session);
|
|
void tr_sessionUseAltSpeedTime(tr_session* session, bool enabled);
|
|
|
|
size_t tr_sessionGetAltSpeedBegin(tr_session const* session);
|
|
void tr_sessionSetAltSpeedBegin(tr_session* session, size_t minutes_since_midnight);
|
|
|
|
size_t tr_sessionGetAltSpeedEnd(tr_session const* session);
|
|
void tr_sessionSetAltSpeedEnd(tr_session* session, size_t minutes_since_midnight);
|
|
|
|
enum tr_sched_day
|
|
{
|
|
TR_SCHED_SUN = (1 << 0),
|
|
TR_SCHED_MON = (1 << 1),
|
|
TR_SCHED_TUES = (1 << 2),
|
|
TR_SCHED_WED = (1 << 3),
|
|
TR_SCHED_THURS = (1 << 4),
|
|
TR_SCHED_FRI = (1 << 5),
|
|
TR_SCHED_SAT = (1 << 6),
|
|
TR_SCHED_WEEKDAY = (TR_SCHED_MON | TR_SCHED_TUES | TR_SCHED_WED | TR_SCHED_THURS | TR_SCHED_FRI),
|
|
TR_SCHED_WEEKEND = (TR_SCHED_SUN | TR_SCHED_SAT),
|
|
TR_SCHED_ALL = (TR_SCHED_WEEKDAY | TR_SCHED_WEEKEND)
|
|
};
|
|
|
|
tr_sched_day tr_sessionGetAltSpeedDay(tr_session const* session);
|
|
void tr_sessionSetAltSpeedDay(tr_session* session, tr_sched_day day);
|
|
|
|
using tr_altSpeedFunc = void (*)(tr_session* session, bool active, bool user_driven, void*);
|
|
|
|
void tr_sessionSetAltSpeedFunc(tr_session* session, tr_altSpeedFunc func, void* user_data);
|
|
|
|
// ---
|
|
|
|
double tr_sessionGetRawSpeed_KBps(tr_session const* session, tr_direction dir);
|
|
|
|
bool tr_sessionIsRatioLimited(tr_session const* session);
|
|
void tr_sessionSetRatioLimited(tr_session* session, bool is_limited);
|
|
|
|
double tr_sessionGetRatioLimit(tr_session const* session);
|
|
void tr_sessionSetRatioLimit(tr_session* session, double desired_ratio);
|
|
|
|
bool tr_sessionIsIdleLimited(tr_session const* session);
|
|
void tr_sessionSetIdleLimited(tr_session* session, bool is_limited);
|
|
|
|
uint16_t tr_sessionGetIdleLimit(tr_session const* session);
|
|
void tr_sessionSetIdleLimit(tr_session* session, uint16_t idle_minutes);
|
|
|
|
uint16_t tr_sessionGetPeerLimit(tr_session const* session);
|
|
void tr_sessionSetPeerLimit(tr_session* session, uint16_t max_global_peers);
|
|
|
|
uint16_t tr_sessionGetPeerLimitPerTorrent(tr_session const* session);
|
|
void tr_sessionSetPeerLimitPerTorrent(tr_session* session, uint16_t max_peers);
|
|
|
|
bool tr_sessionGetPaused(tr_session const* session);
|
|
void tr_sessionSetPaused(tr_session* session, bool is_paused);
|
|
|
|
void tr_sessionSetDeleteSource(tr_session* session, bool delete_source);
|
|
|
|
tr_priority_t tr_torrentGetPriority(tr_torrent const* tor);
|
|
void tr_torrentSetPriority(tr_torrent* tor, tr_priority_t priority);
|
|
|
|
int tr_sessionGetAntiBruteForceThreshold(tr_session const* session);
|
|
void tr_sessionSetAntiBruteForceThreshold(tr_session* session, int max_bad_requests);
|
|
|
|
bool tr_sessionGetAntiBruteForceEnabled(tr_session const* session);
|
|
void tr_sessionSetAntiBruteForceEnabled(tr_session* session, bool enabled);
|
|
|
|
// ---
|
|
|
|
/**
|
|
* Torrent Queueing
|
|
*
|
|
* There are independent queues for seeding (`TR_UP`) and leeching (`TR_DOWN`).
|
|
*
|
|
* If the session already has enough non-stalled seeds/leeches when
|
|
* `tr_torrentStart()` is called, the torrent will be moved into the
|
|
* appropriate queue and its state will be `TR_STATUS_{DOWNLOAD,SEED}_WAIT`.
|
|
*
|
|
* To bypass the queue and unconditionally start the torrent use
|
|
* `tr_torrentStartNow()`.
|
|
*
|
|
* Torrents can be moved in the queue using the simple functions
|
|
* `tr_torrentQueueMove{Top,Up,Down,Bottom}`. They can be moved to
|
|
* arbitrary points in the queue with `tr_torrentSetQueuePosition()`.
|
|
*/
|
|
|
|
/** @brief Like `tr_torrentStart()`, but resumes right away regardless of the queues. */
|
|
void tr_torrentStartNow(tr_torrent* tor);
|
|
|
|
/** @brief DEPRECATED. Equivalent to `tr_torrentStart()`. Use that instead. */
|
|
void tr_torrentStartMagnet(tr_torrent* tor);
|
|
|
|
/** @brief Return the queued torrent's position in the queue it's in. [0...n) */
|
|
size_t tr_torrentGetQueuePosition(tr_torrent const* tor);
|
|
|
|
/** @brief Set the queued torrent's position in the queue it's in.
|
|
* Edge cases: `pos <= 0` moves to the front; `pos >= queue's length` moves to the back */
|
|
void tr_torrentSetQueuePosition(tr_torrent* tor, size_t queue_position);
|
|
|
|
// ---
|
|
|
|
/** @brief Convenience function for moving a batch of torrents to the front of their queue(s) */
|
|
void tr_torrentsQueueMoveTop(tr_torrent* const* torrents, size_t torrent_count);
|
|
|
|
/** @brief Convenience function for moving a batch of torrents ahead one step in their queue(s) */
|
|
void tr_torrentsQueueMoveUp(tr_torrent* const* torrents, size_t torrent_count);
|
|
|
|
/** @brief Convenience function for moving a batch of torrents back one step in their queue(s) */
|
|
void tr_torrentsQueueMoveDown(tr_torrent* const* torrents, size_t torrent_count);
|
|
|
|
/** @brief Convenience function for moving a batch of torrents to the back of their queue(s) */
|
|
void tr_torrentsQueueMoveBottom(tr_torrent* const* torrents, size_t torrent_count);
|
|
|
|
// ---
|
|
|
|
/** @brief Return the number of torrents allowed to download (if direction is `TR_DOWN`) or seed (if direction is `TR_UP`) at the same time */
|
|
size_t tr_sessionGetQueueSize(tr_session const* session, tr_direction dir);
|
|
|
|
/** @brief Set the number of torrents allowed to download (if direction is `TR_DOWN`) or seed (if direction is `TR_UP`) at the same time */
|
|
void tr_sessionSetQueueSize(tr_session* session, tr_direction dir, size_t max_simultaneous_torrents);
|
|
|
|
/** @brief Return true if we're limiting how many torrents can concurrently download (`TR_DOWN`) or seed (`TR_UP`) at the same time */
|
|
bool tr_sessionGetQueueEnabled(tr_session const* session, tr_direction dir);
|
|
|
|
/** @brief Set whether or not to limit how many torrents can download (`TR_DOWN`) or seed (`TR_UP`) at the same time */
|
|
void tr_sessionSetQueueEnabled(tr_session* session, tr_direction dir, bool do_limit_simultaneous_torrents);
|
|
|
|
// ---
|
|
|
|
/** @return the number of minutes a torrent can be idle before being considered as stalled */
|
|
size_t tr_sessionGetQueueStalledMinutes(tr_session const* session);
|
|
|
|
/** @brief Consider torrent as 'stalled' when it's been inactive for N minutes.
|
|
Stalled torrents are left running but are not counted by `tr_sessionGetQueueSize()`. */
|
|
void tr_sessionSetQueueStalledMinutes(tr_session* session, int minutes);
|
|
|
|
/** @return true if we're torrents idle for over N minutes will be flagged as 'stalled' */
|
|
bool tr_sessionGetQueueStalledEnabled(tr_session const* session);
|
|
|
|
/** @brief Set whether or not to count torrents idle for over N minutes as 'stalled' */
|
|
void tr_sessionSetQueueStalledEnabled(tr_session* session, bool enabled);
|
|
|
|
/** @brief Set a callback that is invoked when the queue starts a torrent */
|
|
void tr_sessionSetQueueStartCallback(tr_session* session, void (*callback)(tr_session*, tr_torrent*, void*), void* user_data);
|
|
|
|
// ---
|
|
|
|
/**
|
|
* Load all the torrents in the session's torrent folder.
|
|
* This can be used at startup to kickstart all the torrents
|
|
* from the previous session.
|
|
*
|
|
* @return the number of torrents in the session
|
|
*/
|
|
size_t tr_sessionLoadTorrents(tr_session* session, tr_ctor* ctor);
|
|
|
|
/**
|
|
* Get pointers to all the torrents in a session.
|
|
*
|
|
* Iff `buflen` is large enough to hold the torrents pointers,
|
|
* then all of them are copied into `buf`.
|
|
*
|
|
* @return the number of torrents in the session
|
|
*/
|
|
size_t tr_sessionGetAllTorrents(tr_session* session, tr_torrent** buf, size_t buflen);
|
|
|
|
// ---
|
|
|
|
enum TrScript
|
|
{
|
|
TR_SCRIPT_ON_TORRENT_ADDED,
|
|
TR_SCRIPT_ON_TORRENT_DONE,
|
|
TR_SCRIPT_ON_TORRENT_DONE_SEEDING,
|
|
|
|
TR_SCRIPT_N_TYPES
|
|
};
|
|
|
|
char const* tr_sessionGetScript(tr_session const* session, TrScript type);
|
|
|
|
void tr_sessionSetScript(tr_session* session, TrScript type, char const* script_filename);
|
|
|
|
bool tr_sessionIsScriptEnabled(tr_session const* session, TrScript type);
|
|
|
|
void tr_sessionSetScriptEnabled(tr_session* session, TrScript type, bool enabled);
|
|
|
|
/** @} */
|
|
|
|
// ---
|
|
|
|
/** @addtogroup Blocklists
|
|
@{ */
|
|
|
|
/**
|
|
* Specify a range of IPs for Transmission to block.
|
|
*
|
|
* Filename must be an uncompressed ascii file.
|
|
*
|
|
* libtransmission does not keep a handle to `filename`
|
|
* after this call returns, so the caller is free to
|
|
* keep or delete `filename` as it wishes.
|
|
* libtransmission makes its own copy of the file
|
|
* massaged into a binary format easier to search.
|
|
*
|
|
* The caller only needs to invoke this when the blocklist
|
|
* has changed.
|
|
*
|
|
* Passing nullptr for a filename will clear the blocklist.
|
|
*/
|
|
size_t tr_blocklistSetContent(tr_session* session, char const* content_filename);
|
|
|
|
size_t tr_blocklistGetRuleCount(tr_session const* session);
|
|
|
|
bool tr_blocklistExists(tr_session const* session);
|
|
|
|
bool tr_blocklistIsEnabled(tr_session const* session);
|
|
|
|
void tr_blocklistSetEnabled(tr_session* session, bool is_enabled);
|
|
|
|
char const* tr_blocklistGetURL(tr_session const* session);
|
|
|
|
/** @brief The blocklist that gets updated when an RPC client
|
|
invokes the "blocklist-update" method */
|
|
void tr_blocklistSetURL(tr_session* session, char const* url);
|
|
|
|
/** @brief the file in the $config/blocklists/ directory that's
|
|
used by `tr_blocklistSetContent()` and "blocklist-update" */
|
|
#define DEFAULT_BLOCKLIST_FILENAME "blocklist.bin"
|
|
|
|
/** @} */
|
|
|
|
/**
|
|
* Instantiating tr_torrents and wrangling torrent file metadata
|
|
*
|
|
* 1. Torrent metadata is handled in the `tr_torrent_metadata` class.
|
|
*
|
|
* 2. Torrents should be instantiated using a torrent builder (`tr_ctor`).
|
|
* Calling one of the `tr_ctorSetMetainfo*()` functions is required.
|
|
* Other settings, e.g. torrent priority, are optional.
|
|
* When ready, pass the builder object to `tr_torrentNew()`.
|
|
*/
|
|
|
|
enum tr_ctorMode
|
|
{
|
|
TR_FALLBACK, /* indicates the ctor value should be used only in case of missing resume settings */
|
|
TR_FORCE /* indicates the ctor value should be used regardless of what's in the resume settings */
|
|
};
|
|
|
|
/** @brief Create a torrent constructor object used to instantiate a `tr_torrent`
|
|
@param session the tr_session. */
|
|
tr_ctor* tr_ctorNew(tr_session const* session);
|
|
|
|
/** @brief Free a torrent constructor object */
|
|
void tr_ctorFree(tr_ctor* ctor);
|
|
|
|
/** @brief Get the "delete torrent file" flag from this peer constructor */
|
|
bool tr_ctorGetDeleteSource(tr_ctor const* ctor, bool* setme_do_delete);
|
|
|
|
/** @brief Set whether or not to delete the source torrent file
|
|
when the torrent is added. (Default: False) */
|
|
void tr_ctorSetDeleteSource(tr_ctor* ctor, bool delete_source);
|
|
|
|
/** @brief Set the constructor's metainfo from a magnet link */
|
|
bool tr_ctorSetMetainfoFromMagnetLink(tr_ctor* ctor, char const* magnet, tr_error** error);
|
|
|
|
tr_torrent_metainfo const* tr_ctorGetMetainfo(tr_ctor const* ctor);
|
|
|
|
/** @brief Set the constructor's metainfo from a raw benc already in memory */
|
|
bool tr_ctorSetMetainfo(tr_ctor* ctor, char const* metainfo, size_t len, tr_error** error);
|
|
|
|
/** @brief Set the constructor's metainfo from a local torrent file */
|
|
bool tr_ctorSetMetainfoFromFile(tr_ctor* ctor, char const* filename, tr_error** error);
|
|
|
|
/** @brief Get this peer constructor's peer limit */
|
|
bool tr_ctorGetPeerLimit(tr_ctor const* ctor, tr_ctorMode mode, uint16_t* setme_count);
|
|
|
|
/** @brief Set how many peers this torrent can connect to. (Default: 50) */
|
|
void tr_ctorSetPeerLimit(tr_ctor* ctor, tr_ctorMode mode, uint16_t limit);
|
|
|
|
/** @brief Get the download path from this peer constructor */
|
|
bool tr_ctorGetDownloadDir(tr_ctor const* ctor, tr_ctorMode mode, char const** setme_download_dir);
|
|
|
|
/** @brief Set the download folder for the torrent being added with this ctor.
|
|
@see `tr_ctorSetDownloadDir()`
|
|
@see `tr_sessionInit()` */
|
|
void tr_ctorSetDownloadDir(tr_ctor* ctor, tr_ctorMode mode, char const* directory);
|
|
|
|
/**
|
|
* @brief Set the incompleteDir for this torrent.
|
|
*
|
|
* This is not a supported API call.
|
|
* It only exists so the mac client can migrate
|
|
* its older incompleteDir settings, and that's
|
|
* the only place where it should be used.
|
|
*/
|
|
void tr_ctorSetIncompleteDir(tr_ctor* ctor, char const* directory);
|
|
|
|
/** @brief Get the "isPaused" flag from this peer constructor */
|
|
bool tr_ctorGetPaused(tr_ctor const* ctor, tr_ctorMode mode, bool* setme_is_paused);
|
|
|
|
/** Set whether or not the torrent begins downloading/seeding when created.
|
|
(Default: not paused) */
|
|
void tr_ctorSetPaused(tr_ctor* ctor, tr_ctorMode mode, bool is_paused);
|
|
|
|
/** @brief Set the priorities for files in a torrent */
|
|
void tr_ctorSetFilePriorities(tr_ctor* ctor, tr_file_index_t const* files, tr_file_index_t file_count, tr_priority_t priority);
|
|
|
|
/** @brief Set the download flag for files in a torrent */
|
|
void tr_ctorSetFilesWanted(tr_ctor* ctor, tr_file_index_t const* files, tr_file_index_t file_count, bool wanted);
|
|
|
|
/** @brief Get the torrent file that this ctor's metainfo came from,
|
|
or nullptr if `tr_ctorSetMetainfoFromFile()` wasn't used */
|
|
char const* tr_ctorGetSourceFile(tr_ctor const* ctor);
|
|
|
|
// TODO(ckerr) remove
|
|
enum tr_parse_result
|
|
{
|
|
TR_PARSE_OK,
|
|
TR_PARSE_ERR,
|
|
TR_PARSE_DUPLICATE
|
|
};
|
|
|
|
/**
|
|
* Instantiate a single torrent.
|
|
*
|
|
* Returns a pointer to the torrent on success, or nullptr on failure.
|
|
*
|
|
* @param ctor the builder struct
|
|
* @param setme_duplicate_of If the torrent couldn't be created because it's a duplicate,
|
|
* this is set to point to the original torrent.
|
|
*/
|
|
tr_torrent* tr_torrentNew(tr_ctor* ctor, tr_torrent** setme_duplicate_of);
|
|
|
|
/** @} */
|
|
|
|
// --- Torrents
|
|
|
|
/** @addtogroup tr_torrent Torrents
|
|
@{ */
|
|
|
|
using tr_fileFunc = bool (*)(char const* filename, void* user_data, struct tr_error** error);
|
|
|
|
/** @brief Removes our torrent and .resume files for this torrent */
|
|
void tr_torrentRemove(tr_torrent* torrent, bool delete_flag, tr_fileFunc delete_func, void* user_data);
|
|
|
|
/** @brief Start a torrent */
|
|
void tr_torrentStart(tr_torrent* torrent);
|
|
|
|
/** @brief Stop (pause) a torrent */
|
|
void tr_torrentStop(tr_torrent* torrent);
|
|
|
|
using tr_torrent_rename_done_func = void (*)( //
|
|
tr_torrent* torrent,
|
|
char const* oldpath,
|
|
char const* newname,
|
|
int error,
|
|
void* user_data);
|
|
|
|
/**
|
|
* @brief Rename a file or directory in a torrent.
|
|
*
|
|
* @param tor the torrent whose path will be renamed
|
|
* @param oldpath the path to the file or folder that will be renamed
|
|
* @param newname the file or folder's new name
|
|
* @param callback the callback invoked when the renaming finishes, or nullptr
|
|
* @param callback_user_data the pointer to pass in the callback's user_data arg
|
|
*
|
|
* As a special case, renaming the root file in a torrent will also
|
|
* update tr_torrentName().
|
|
*
|
|
* EXAMPLES
|
|
*
|
|
* Consider a tr_torrent where its
|
|
* tr_torrentFile(tor, 0).name is "frobnitz-linux/checksum" and
|
|
* tr_torrentFile(tor, 1).name is "frobnitz-linux/frobnitz.iso".
|
|
*
|
|
* 1. tr_torrentRenamePath(tor, "frobnitz-linux", "foo") will rename
|
|
* the "frotbnitz-linux" folder as "foo", and update both
|
|
* tr_torrentName(tor) and tr_torrentFile(tor, *).name.
|
|
*
|
|
* 2. tr_torrentRenamePath(tor, "frobnitz-linux/checksum", "foo") will
|
|
* rename the "frobnitz-linux/checksum" file as "foo" and update
|
|
* files[0].name to "frobnitz-linux/foo".
|
|
*
|
|
* RETURN
|
|
*
|
|
* Changing the torrent's internal fields requires a session thread lock,
|
|
* so this function returns asynchronously to avoid blocking. If you don't
|
|
* want to be notified when the function has finished, you can pass nullptr
|
|
* as the callback arg.
|
|
*
|
|
* On success, the callback's error argument will be 0.
|
|
*
|
|
* If oldpath can't be found in files[*].name, or if newname is already
|
|
* in files[*].name, or contains a directory separator, or is nullptr, "",
|
|
* ".", or "..", the error argument will be EINVAL.
|
|
*
|
|
* If the path exists on disk but can't be renamed, the error argument
|
|
* will be the errno set by rename().
|
|
*/
|
|
void tr_torrentRenamePath(
|
|
tr_torrent* tor,
|
|
char const* oldpath,
|
|
char const* newname,
|
|
tr_torrent_rename_done_func callback,
|
|
void* callback_user_data);
|
|
|
|
enum
|
|
{
|
|
TR_LOC_MOVING,
|
|
TR_LOC_DONE,
|
|
TR_LOC_ERROR
|
|
};
|
|
|
|
/**
|
|
* @brief Tell transmission where to find this torrent's local data.
|
|
*
|
|
* if `move_from_old_path` is `true`, the torrent's incompleteDir
|
|
* will be clobbered s.t. additional files being added will be saved
|
|
* to the torrent's downloadDir.
|
|
*/
|
|
void tr_torrentSetLocation(
|
|
tr_torrent* torrent,
|
|
char const* location,
|
|
bool move_from_old_path,
|
|
double volatile* setme_progress,
|
|
int volatile* setme_state);
|
|
|
|
uint64_t tr_torrentGetBytesLeftToAllocate(tr_torrent const* torrent);
|
|
|
|
/**
|
|
* @brief Returns this torrent's unique ID.
|
|
*
|
|
* IDs are fast lookup keys, but are not persistent between sessions.
|
|
* If you need that, use `tr_torrentView().hash_string`.
|
|
*/
|
|
tr_torrent_id_t tr_torrentId(tr_torrent const* torrent);
|
|
|
|
tr_torrent* tr_torrentFindFromId(tr_session* session, tr_torrent_id_t id);
|
|
|
|
tr_torrent* tr_torrentFindFromMetainfo(tr_session* session, tr_torrent_metainfo const* metainfo);
|
|
|
|
tr_torrent* tr_torrentFindFromMagnetLink(tr_session* session, char const* link);
|
|
|
|
/**
|
|
* @brief Set metainfo if possible.
|
|
* @return True if given metainfo was set.
|
|
*
|
|
*/
|
|
bool tr_torrentSetMetainfoFromFile(tr_torrent* torrent, tr_torrent_metainfo const* metainfo, char const* filename);
|
|
|
|
/**
|
|
* @return this torrent's name.
|
|
*/
|
|
char const* tr_torrentName(tr_torrent const* tor);
|
|
|
|
uint64_t tr_torrentTotalSize(tr_torrent const* tor);
|
|
|
|
/**
|
|
* @brief find the location of a torrent's file by looking with and without
|
|
* the ".part" suffix, looking in downloadDir and incompleteDir, etc.
|
|
* @return the path of this file, or an empty string if no file exists yet.
|
|
* @param tor the torrent whose file we're looking for
|
|
* @param file_num the fileIndex, in [0...tr_torrentFileCount())
|
|
*/
|
|
#ifdef __cplusplus
|
|
[[nodiscard]] std::string tr_torrentFindFile(tr_torrent const* tor, tr_file_index_t file_num);
|
|
#endif
|
|
|
|
/** @brief buffer variant of `tr_torrentFindFile()`. See `tr_strv_to_buf()`. */
|
|
size_t tr_torrentFindFileToBuf(tr_torrent const* tor, tr_file_index_t file_num, char* buf, size_t buflen);
|
|
|
|
// --- Torrent speed limits
|
|
|
|
tr_kilobytes_per_second_t tr_torrentGetSpeedLimit_KBps(tr_torrent const* tor, tr_direction dir);
|
|
void tr_torrentSetSpeedLimit_KBps(tr_torrent* tor, tr_direction dir, tr_kilobytes_per_second_t kilo_per_second);
|
|
|
|
bool tr_torrentUsesSpeedLimit(tr_torrent const* tor, tr_direction dir);
|
|
void tr_torrentUseSpeedLimit(tr_torrent* tor, tr_direction dir, bool enabled);
|
|
|
|
bool tr_torrentUsesSessionLimits(tr_torrent const* tor);
|
|
void tr_torrentUseSessionLimits(tr_torrent* tor, bool enabled);
|
|
|
|
// --- Ratio Limits
|
|
|
|
enum tr_ratiolimit
|
|
{
|
|
/* follow the global settings */
|
|
TR_RATIOLIMIT_GLOBAL = 0,
|
|
/* override the global settings, seeding until a certain ratio */
|
|
TR_RATIOLIMIT_SINGLE = 1,
|
|
/* override the global settings, seeding regardless of ratio */
|
|
TR_RATIOLIMIT_UNLIMITED = 2
|
|
};
|
|
|
|
tr_ratiolimit tr_torrentGetRatioMode(tr_torrent const* tor);
|
|
void tr_torrentSetRatioMode(tr_torrent* tor, tr_ratiolimit mode);
|
|
|
|
double tr_torrentGetRatioLimit(tr_torrent const* tor);
|
|
void tr_torrentSetRatioLimit(tr_torrent* tor, double desired_ratio);
|
|
|
|
bool tr_torrentGetSeedRatio(tr_torrent const* tor, double* ratio);
|
|
|
|
// --- Idle Time Limits
|
|
|
|
enum tr_idlelimit
|
|
{
|
|
/* follow the global settings */
|
|
TR_IDLELIMIT_GLOBAL = 0,
|
|
/* override the global settings, seeding until a certain idle time */
|
|
TR_IDLELIMIT_SINGLE = 1,
|
|
/* override the global settings, seeding regardless of activity */
|
|
TR_IDLELIMIT_UNLIMITED = 2
|
|
};
|
|
|
|
tr_idlelimit tr_torrentGetIdleMode(tr_torrent const* tor);
|
|
void tr_torrentSetIdleMode(tr_torrent* tor, tr_idlelimit mode);
|
|
|
|
uint16_t tr_torrentGetIdleLimit(tr_torrent const* tor);
|
|
void tr_torrentSetIdleLimit(tr_torrent* tor, uint16_t idle_minutes);
|
|
|
|
bool tr_torrentGetSeedIdle(tr_torrent const* tor, uint16_t* minutes);
|
|
|
|
// --- Peer Limits
|
|
|
|
uint16_t tr_torrentGetPeerLimit(tr_torrent const* tor);
|
|
void tr_torrentSetPeerLimit(tr_torrent* tor, uint16_t max_connected_peers);
|
|
|
|
// --- File Priorities
|
|
|
|
enum
|
|
{
|
|
TR_PRI_LOW = -1,
|
|
TR_PRI_NORMAL = 0, /* since Normal is 0, memset initializes nicely */
|
|
TR_PRI_HIGH = 1
|
|
};
|
|
|
|
/**
|
|
* @brief Set a batch of files to a particular priority.
|
|
*
|
|
* @param priority must be one of TR_PRI_NORMAL, _HIGH, or _LOW
|
|
*/
|
|
void tr_torrentSetFilePriorities(
|
|
tr_torrent* torrent,
|
|
tr_file_index_t const* files,
|
|
tr_file_index_t file_count,
|
|
tr_priority_t priority);
|
|
|
|
/** @brief Set a batch of files to be downloaded or not. */
|
|
void tr_torrentSetFileDLs(tr_torrent* torrent, tr_file_index_t const* files, tr_file_index_t n_files, bool wanted);
|
|
|
|
char const* tr_torrentGetDownloadDir(tr_torrent const* torrent);
|
|
|
|
/* Raw function to change the torrent's downloadDir field.
|
|
This should only be used by libtransmission or to bootstrap
|
|
a newly-instantiated tr_torrent object. */
|
|
void tr_torrentSetDownloadDir(tr_torrent* torrent, char const* path);
|
|
|
|
/**
|
|
* Returns the root directory of where the torrent is.
|
|
*
|
|
* This will usually be the downloadDir. However if the torrent
|
|
* has an incompleteDir enabled and hasn't finished downloading
|
|
* yet, that will be returned instead.
|
|
*/
|
|
char const* tr_torrentGetCurrentDir(tr_torrent const* tor);
|
|
|
|
/**
|
|
* Returns a the magnet link to the torrent.
|
|
*/
|
|
#ifdef __cplusplus
|
|
[[nodiscard]] std::string tr_torrentGetMagnetLink(tr_torrent const* tor);
|
|
#endif
|
|
|
|
/** @brief buffer variant of `tr_torrentGetMagnetLink()`. See `tr_strv_to_buf()`. */
|
|
size_t tr_torrentGetMagnetLinkToBuf(tr_torrent const* tor, char* buf, size_t buflen);
|
|
|
|
// ---
|
|
|
|
/**
|
|
* Returns a string listing its tracker's announce URLs.
|
|
* One URL per line, with a blank line between tiers.
|
|
*
|
|
* NOTE: this only includes the trackers included in the torrent and,
|
|
* along with `tr_torrentSetTrackerList()`, is intended for import/export
|
|
* and user editing. It does *not* include the "default trackers" that
|
|
* are applied to all public torrents. If you want a full display of all
|
|
* trackers, use `tr_torrentTracker()` and `tr_torrentTrackerCount()`
|
|
*/
|
|
#ifdef __cplusplus
|
|
[[nodiscard]] std::string tr_torrentGetTrackerList(tr_torrent const* tor);
|
|
#endif
|
|
|
|
/** @brief buffer variant of `tr_torrentGetTrackerList()`. See `tr_strv_to_buf()`. */
|
|
size_t tr_torrentGetTrackerListToBuf(tr_torrent const* tor, char* buf, size_t buflen);
|
|
|
|
/**
|
|
* Sets a torrent's tracker list from a list of announce URLs with one
|
|
* URL per line and a blank line between tiers.
|
|
*
|
|
* This updates both the `torrent` object's tracker list
|
|
* and the metainfo file in `tr_sessionGetConfigDir()`'s torrent subdirectory.
|
|
*/
|
|
bool tr_torrentSetTrackerList(tr_torrent* tor, char const* text);
|
|
|
|
// ---
|
|
|
|
enum tr_completeness
|
|
{
|
|
TR_LEECH, /* doesn't have all the desired pieces */
|
|
TR_SEED, /* has the entire torrent */
|
|
TR_PARTIAL_SEED /* has the desired pieces, but not the entire torrent */
|
|
};
|
|
|
|
/**
|
|
* @param was_running whether or not the torrent was running when
|
|
* it changed its completeness state
|
|
*/
|
|
using tr_torrent_completeness_func = void (*)( //
|
|
tr_torrent* torrent,
|
|
tr_completeness completeness,
|
|
bool was_running,
|
|
void* user_data);
|
|
|
|
using tr_session_ratio_limit_hit_func = void (*)(tr_session*, tr_torrent* torrent, void* user_data);
|
|
|
|
using tr_session_idle_limit_hit_func = void (*)(tr_session*, tr_torrent* torrent, void* user_data);
|
|
|
|
/**
|
|
* Register to be notified whenever a torrent's "completeness"
|
|
* changes. This will be called, for example, when a torrent
|
|
* finishes downloading and changes from `TR_LEECH` to
|
|
* either `TR_SEED` or `TR_PARTIAL_SEED`.
|
|
*
|
|
* callback is invoked FROM LIBTRANSMISSION'S THREAD!
|
|
* This means callback must be fast (to avoid blocking peers),
|
|
* shouldn't call libtransmission functions (to avoid deadlock),
|
|
* and shouldn't modify client-level memory without using a mutex!
|
|
*
|
|
* @see `tr_completeness`
|
|
*/
|
|
void tr_sessionSetCompletenessCallback(tr_session* session, tr_torrent_completeness_func callback, void* user_data);
|
|
|
|
using tr_session_metadata_func = void (*)(tr_session* session, tr_torrent* torrent, void* user_data);
|
|
|
|
/**
|
|
* Register to be notified whenever a torrent changes from
|
|
* having incomplete metadata to having complete metadata.
|
|
* This happens when a magnet link finishes downloading
|
|
* metadata from its peers.
|
|
*/
|
|
void tr_sessionSetMetadataCallback(tr_session* session, tr_session_metadata_func callback, void* user_data);
|
|
|
|
/**
|
|
* Register to be notified whenever a torrent's ratio limit
|
|
* has been hit. This will be called when the torrent's
|
|
* ul/dl ratio has met or exceeded the designated ratio limit.
|
|
*
|
|
* Has the same restrictions as `tr_sessionSetCompletenessCallback`
|
|
*/
|
|
void tr_sessionSetRatioLimitHitCallback(tr_session* session, tr_session_ratio_limit_hit_func callback, void* user_data);
|
|
|
|
/**
|
|
* Register to be notified whenever a torrent's idle limit
|
|
* has been hit. This will be called when the seeding torrent's
|
|
* idle time has met or exceeded the designated idle limit.
|
|
*
|
|
* Has the same restrictions as `tr_sessionSetCompletenessCallback`
|
|
*/
|
|
void tr_sessionSetIdleLimitHitCallback(tr_session* session, tr_session_idle_limit_hit_func callback, void* user_data);
|
|
|
|
/**
|
|
* MANUAL ANNOUNCE
|
|
*
|
|
* Trackers usually set an announce interval of 15 or 30 minutes.
|
|
* Users can send one-time announce requests that override this
|
|
* interval by calling `tr_torrentManualUpdate()`.
|
|
*
|
|
* The wait interval for `tr_torrentManualUpdate()` is much smaller.
|
|
* You can test whether or not a manual update is possible
|
|
* (for example, to desensitize the button) by calling
|
|
* `tr_torrentCanManualUpdate()`.
|
|
*/
|
|
|
|
void tr_torrentManualUpdate(tr_torrent* torrent);
|
|
|
|
bool tr_torrentCanManualUpdate(tr_torrent const* torrent);
|
|
|
|
// --- tr_peer_stat
|
|
|
|
struct tr_peer_stat
|
|
{
|
|
bool isUTP;
|
|
|
|
bool isEncrypted;
|
|
bool isDownloadingFrom;
|
|
bool isUploadingTo;
|
|
bool isSeed;
|
|
|
|
bool peerIsChoked;
|
|
bool peerIsInterested;
|
|
bool clientIsChoked;
|
|
bool clientIsInterested;
|
|
bool isIncoming;
|
|
|
|
uint8_t from;
|
|
uint16_t port;
|
|
|
|
char addr[TR_INET6_ADDRSTRLEN];
|
|
char flagStr[32];
|
|
char const* client;
|
|
|
|
float progress;
|
|
double rateToPeer_KBps;
|
|
double rateToClient_KBps;
|
|
|
|
// THESE NEXT FOUR FIELDS ARE EXPERIMENTAL.
|
|
// Don't rely on them; they'll probably go away
|
|
/* how many blocks we've sent to this peer in the last 120 seconds */
|
|
uint32_t blocksToPeer;
|
|
/* how many blocks this client's sent to us in the last 120 seconds */
|
|
uint32_t blocksToClient;
|
|
/* how many requests to this peer that we've cancelled in the last 120 seconds */
|
|
uint32_t cancelsToPeer;
|
|
/* how many requests this peer made of us, then cancelled, in the last 120 seconds */
|
|
uint32_t cancelsToClient;
|
|
|
|
/* how many requests the peer has made that we haven't responded to yet */
|
|
size_t activeReqsToClient;
|
|
|
|
/* how many requests we've made and are currently awaiting a response for */
|
|
size_t activeReqsToPeer;
|
|
};
|
|
|
|
tr_peer_stat* tr_torrentPeers(tr_torrent const* torrent, size_t* peer_count);
|
|
|
|
void tr_torrentPeersFree(tr_peer_stat* peer_stats, size_t peer_count);
|
|
|
|
// --- tr_tracker_stat
|
|
|
|
enum tr_tracker_state
|
|
{
|
|
/* we won't (announce,scrape) this torrent to this tracker because
|
|
* the torrent is stopped, or because of an error, or whatever */
|
|
TR_TRACKER_INACTIVE = 0,
|
|
/* we will (announce,scrape) this torrent to this tracker, and are
|
|
* waiting for enough time to pass to satisfy the tracker's interval */
|
|
TR_TRACKER_WAITING = 1,
|
|
/* it's time to (announce,scrape) this torrent, and we're waiting on a
|
|
* free slot to open up in the announce manager */
|
|
TR_TRACKER_QUEUED = 2,
|
|
/* we're (announcing,scraping) this torrent right now */
|
|
TR_TRACKER_ACTIVE = 3
|
|
};
|
|
|
|
/*
|
|
* Unlike other _view structs, it is safe to keep a tr_tracker_view copy.
|
|
* The announce, scrape, and host strings are interned & never go out-of-scope.
|
|
*/
|
|
struct tr_tracker_view
|
|
{
|
|
char const* announce; // full announce URL
|
|
char const* scrape; // full scrape URL
|
|
char const* host_and_port; // uniquely-identifying tracker name (`${host}:${port}`)
|
|
|
|
// The tracker site's name. Uses the first label before the public suffix
|
|
// (https://publicsuffix.org/) in the announce URL's host.
|
|
// e.g. "https://www.example.co.uk/announce/"'s sitename is "example"
|
|
// RFC 1034 says labels must be less than 64 chars
|
|
char sitename[64];
|
|
|
|
char lastAnnounceResult[128]; // if hasAnnounced, the human-readable result of latest announce
|
|
char lastScrapeResult[128]; // if hasScraped, the human-readable result of the latest scrape
|
|
|
|
time_t lastAnnounceStartTime; // if hasAnnounced, when the latest announce request was sent
|
|
time_t lastAnnounceTime; // if hasAnnounced, when the latest announce reply was received
|
|
time_t nextAnnounceTime; // if announceState == TR_TRACKER_WAITING, time of next announce
|
|
|
|
time_t lastScrapeStartTime; // if hasScraped, when the latest scrape request was sent
|
|
time_t lastScrapeTime; // if hasScraped, when the latest scrape reply was received
|
|
time_t nextScrapeTime; // if scrapeState == TR_TRACKER_WAITING, time of next scrape
|
|
|
|
int downloadCount; // number of times this torrent's been downloaded, or -1 if unknown
|
|
int lastAnnouncePeerCount; // if hasAnnounced, the number of peers the tracker gave us
|
|
int leecherCount; // number of leechers the tracker knows of, or -1 if unknown
|
|
int seederCount; // number of seeders the tracker knows of, or -1 if unknown
|
|
|
|
size_t tier; // which tier this tracker is in
|
|
tr_tracker_id_t id; // unique transmission-generated ID for use in libtransmission API
|
|
|
|
tr_tracker_state announceState; // whether we're announcing, waiting to announce, etc.
|
|
tr_tracker_state scrapeState; // whether we're scraping, waiting to scrape, etc.
|
|
|
|
bool hasAnnounced; // true iff we've announced to this tracker during this session
|
|
bool hasScraped; // true iff we've scraped this tracker during this session
|
|
bool isBackup; // only one tracker per tier is used; the others are kept as backups
|
|
bool lastAnnounceSucceeded; // if hasAnnounced, whether or not the latest announce succeeded
|
|
bool lastAnnounceTimedOut; // true iff the latest announce request timed out
|
|
bool lastScrapeSucceeded; // if hasScraped, whether or not the latest scrape succeeded
|
|
bool lastScrapeTimedOut; // true iff the latest scrape request timed out
|
|
};
|
|
|
|
struct tr_tracker_view tr_torrentTracker(tr_torrent const* torrent, size_t i);
|
|
|
|
/**
|
|
* Count all the trackers (both active and backup) this torrent is using.
|
|
*
|
|
* NOTE: this is for a status display only and may include trackers from
|
|
* the default tracker list if this is a public torrent. If you want a
|
|
* list of trackers the user can edit, see `tr_torrentGetTrackerList()`.
|
|
*/
|
|
size_t tr_torrentTrackerCount(tr_torrent const* torrent);
|
|
|
|
/*
|
|
* This view structure is intended for short-term use. Its pointers are owned
|
|
* by the torrent and may be invalidated if the torrent is edited or removed.
|
|
*/
|
|
struct tr_file_view
|
|
{
|
|
char const* name; // This file's name. Includes the full subpath in the torrent.
|
|
uint64_t have; // the current size of the file, i.e. how much we've downloaded
|
|
uint64_t length; // the total size of the file
|
|
double progress; // have / length
|
|
tr_piece_index_t beginPiece; // piece index where this file starts
|
|
tr_piece_index_t endPiece; // piece index where this file ends (exclusive)
|
|
tr_priority_t priority; // the file's priority
|
|
bool wanted; // do we want to download this file?
|
|
};
|
|
tr_file_view tr_torrentFile(tr_torrent const* torrent, tr_file_index_t file);
|
|
|
|
size_t tr_torrentFileCount(tr_torrent const* torrent);
|
|
|
|
/*
|
|
* This view structure is intended for short-term use. Its pointers are owned
|
|
* by the torrent and may be invalidated if the torrent is edited or removed.
|
|
*/
|
|
struct tr_webseed_view
|
|
{
|
|
char const* url; // the url to download from
|
|
bool is_downloading; // can be true even if speed is 0, e.g. slow download
|
|
tr_bytes_per_second_t download_bytes_per_second; // current download speed
|
|
};
|
|
|
|
struct tr_webseed_view tr_torrentWebseed(tr_torrent const* torrent, size_t nth);
|
|
|
|
size_t tr_torrentWebseedCount(tr_torrent const* torrent);
|
|
|
|
/*
|
|
* This view structure is intended for short-term use. Its pointers are owned
|
|
* by the torrent and may be invalidated if the torrent is edited or removed.
|
|
*/
|
|
struct tr_torrent_view
|
|
{
|
|
char const* name;
|
|
char const* hash_string;
|
|
|
|
char const* comment; // optional; may be nullptr
|
|
char const* creator; // optional; may be nullptr
|
|
char const* source; // optional; may be nullptr
|
|
|
|
uint64_t total_size; // total size of the torrent, in bytes
|
|
|
|
time_t date_created;
|
|
|
|
uint32_t piece_size;
|
|
tr_piece_index_t n_pieces;
|
|
|
|
bool is_private;
|
|
bool is_folder;
|
|
};
|
|
|
|
struct tr_torrent_view tr_torrentView(tr_torrent const* tor);
|
|
|
|
/*
|
|
* Get the filename of Transmission's internal copy of the torrent file.
|
|
*/
|
|
#ifdef __cplusplus
|
|
[[nodiscard]] std::string tr_torrentFilename(tr_torrent const* tor);
|
|
#endif
|
|
|
|
/** @brief buffer variant of `tr_torrentFilename()`. See `tr_strv_to_buf()`. */
|
|
size_t tr_torrentFilenameToBuf(tr_torrent const* tor, char* buf, size_t buflen);
|
|
|
|
/**
|
|
* Use this to draw an advanced progress bar which is 'size' pixels
|
|
* wide. Fills 'tab' which you must have allocated: each byte is set
|
|
* to either -1 if we have the piece, otherwise it is set to the number
|
|
* of connected peers who have the piece.
|
|
*/
|
|
void tr_torrentAvailability(tr_torrent const* torrent, int8_t* tab, int size);
|
|
|
|
void tr_torrentAmountFinished(tr_torrent const* torrent, float* tab, int n_tabs);
|
|
|
|
/**
|
|
* Queue a torrent for verification.
|
|
*/
|
|
void tr_torrentVerify(tr_torrent* torrent);
|
|
|
|
bool tr_torrentHasMetadata(tr_torrent const* tor);
|
|
|
|
/**
|
|
* What the torrent is doing right now.
|
|
*
|
|
* Note: these values will become a straight enum at some point in the future.
|
|
* Do not rely on their current `bitfield` implementation
|
|
*/
|
|
enum tr_torrent_activity
|
|
{
|
|
TR_STATUS_STOPPED = 0, /* Torrent is stopped */
|
|
TR_STATUS_CHECK_WAIT = 1, /* Queued to check files */
|
|
TR_STATUS_CHECK = 2, /* Checking files */
|
|
TR_STATUS_DOWNLOAD_WAIT = 3, /* Queued to download */
|
|
TR_STATUS_DOWNLOAD = 4, /* Downloading */
|
|
TR_STATUS_SEED_WAIT = 5, /* Queued to seed */
|
|
TR_STATUS_SEED = 6 /* Seeding */
|
|
};
|
|
enum
|
|
{
|
|
TR_PEER_FROM_INCOMING = 0, /* connections made to the listening port */
|
|
TR_PEER_FROM_LPD, /* peers found by local announcements */
|
|
TR_PEER_FROM_TRACKER, /* peers found from a tracker */
|
|
TR_PEER_FROM_DHT, /* peers found from the DHT */
|
|
TR_PEER_FROM_PEX, /* peers found from PEX */
|
|
TR_PEER_FROM_RESUME, /* peers found in the .resume file */
|
|
TR_PEER_FROM_LTEP, /* peer address provided in an LTEP handshake */
|
|
TR_PEER_FROM__MAX
|
|
};
|
|
enum tr_eta : time_t
|
|
{
|
|
TR_ETA_NOT_AVAIL = -1,
|
|
TR_ETA_UNKNOWN = -2,
|
|
};
|
|
|
|
enum tr_stat_errtype
|
|
{
|
|
/* everything's fine */
|
|
TR_STAT_OK = 0,
|
|
/* when we announced to the tracker, we got a warning in the response */
|
|
TR_STAT_TRACKER_WARNING = 1,
|
|
/* when we announced to the tracker, we got an error in the response */
|
|
TR_STAT_TRACKER_ERROR = 2,
|
|
/* local trouble, such as disk full or permissions error */
|
|
TR_STAT_LOCAL_ERROR = 3
|
|
};
|
|
|
|
/** @brief Used by `tr_torrentStat()` to tell clients about a torrent's state and statistics */
|
|
struct tr_stat
|
|
{
|
|
/** A warning or error message regarding the torrent.
|
|
@see error */
|
|
char const* errorString;
|
|
|
|
/** Byte count of all the piece data we'll have downloaded when we're done,
|
|
whether or not we have it yet. This may be less than `tr_torrentTotalSize()`
|
|
if only some of the torrent's files are wanted.
|
|
[0...tr_torrentTotalSize()] */
|
|
uint64_t sizeWhenDone;
|
|
|
|
/** Byte count of how much data is left to be downloaded until we've got
|
|
all the pieces that we want. [0...tr_stat.sizeWhenDone] */
|
|
uint64_t leftUntilDone;
|
|
|
|
/** Byte count of all the piece data we want and don't have yet,
|
|
but that a connected peer does have. [0...leftUntilDone] */
|
|
uint64_t desiredAvailable;
|
|
|
|
/** Byte count of all the corrupt data you've ever downloaded for
|
|
this torrent. If you're on a poisoned torrent, this number can
|
|
grow very large. */
|
|
uint64_t corruptEver;
|
|
|
|
/** Byte count of all data you've ever uploaded for this torrent. */
|
|
uint64_t uploadedEver;
|
|
|
|
/** Byte count of all the non-corrupt data you've ever downloaded
|
|
for this torrent. If you deleted the files and downloaded a second
|
|
time, this will be `2*totalSize`.. */
|
|
uint64_t downloadedEver;
|
|
|
|
/** Byte count of all the checksum-verified data we have for this torrent.
|
|
*/
|
|
uint64_t haveValid;
|
|
|
|
/** Byte count of all the partial piece data we have for this torrent.
|
|
As pieces become complete, this value may decrease as portions of it
|
|
are moved to `corrupt` or `haveValid`. */
|
|
uint64_t haveUnchecked;
|
|
|
|
/** When the torrent was first added. */
|
|
time_t addedDate;
|
|
|
|
/** When the torrent finished downloading. */
|
|
time_t doneDate;
|
|
|
|
/** When the torrent was last started. */
|
|
time_t startDate;
|
|
|
|
/** The last time we uploaded or downloaded piece data on this torrent. */
|
|
time_t activityDate;
|
|
|
|
/** The last time during this session that a rarely-changing field
|
|
changed -- e.g. any `tr_torrent_metainfo` field (trackers, filenames, name)
|
|
or download directory. RPC clients can monitor this to know when
|
|
to reload fields that rarely change. */
|
|
time_t editDate;
|
|
|
|
/** When `tr_stat.activity` is `TR_STATUS_CHECK` or `TR_STATUS_CHECK_WAIT`,
|
|
this is the percentage of how much of the files has been
|
|
verified. When it gets to 1, the verify process is done.
|
|
Range is [0..1]
|
|
@see `tr_stat.activity` */
|
|
float recheckProgress;
|
|
|
|
/** How much has been downloaded of the entire torrent.
|
|
Range is [0..1] */
|
|
float percentComplete;
|
|
|
|
/** How much of the metadata the torrent has.
|
|
For torrents added from a torrent this will always be 1.
|
|
For magnet links, this number will from from 0 to 1 as the metadata is downloaded.
|
|
Range is [0..1] */
|
|
float metadataPercentComplete;
|
|
|
|
/** How much has been downloaded of the files the user wants. This differs
|
|
from percentComplete if the user wants only some of the torrent's files.
|
|
Range is [0..1]
|
|
@see tr_stat.leftUntilDone */
|
|
float percentDone;
|
|
|
|
/** How much has been uploaded to satisfy the seed ratio.
|
|
This is 1 if the ratio is reached or the torrent is set to seed forever.
|
|
Range is [0..1] */
|
|
float seedRatioPercentDone;
|
|
|
|
/** Speed all piece being sent for this torrent.
|
|
This ONLY counts piece data. */
|
|
float pieceUploadSpeed_KBps;
|
|
|
|
/** Speed all piece being received for this torrent.
|
|
This ONLY counts piece data. */
|
|
float pieceDownloadSpeed_KBps;
|
|
|
|
/** Total uploaded bytes / sizeWhenDone.
|
|
NB: In Transmission 3.00 and earlier, this was total upload / download,
|
|
which caused edge cases when total download was less than sizeWhenDone. */
|
|
float ratio;
|
|
|
|
/** The torrent's unique Id.
|
|
@see `tr_torrentId()` */
|
|
tr_torrent_id_t id;
|
|
|
|
/** Number of seconds since the last activity (or since started).
|
|
-1 if activity is not seeding or downloading. */
|
|
time_t idleSecs;
|
|
|
|
/** Cumulative seconds the torrent's ever spent downloading */
|
|
time_t secondsDownloading;
|
|
|
|
/** Cumulative seconds the torrent's ever spent seeding */
|
|
time_t secondsSeeding;
|
|
|
|
/** This torrent's queue position.
|
|
All torrents have a queue position, even if it's not queued. */
|
|
size_t queuePosition;
|
|
|
|
/** If downloading, estimated number of seconds left until the torrent is done.
|
|
If seeding, estimated number of seconds left until seed ratio is reached. */
|
|
time_t eta;
|
|
|
|
/** If seeding, number of seconds left until the idle time limit is reached. */
|
|
time_t etaIdle;
|
|
|
|
/** What is this torrent doing right now? */
|
|
tr_torrent_activity activity;
|
|
|
|
/** Defines what kind of text is in errorString.
|
|
@see errorString */
|
|
tr_stat_errtype error;
|
|
|
|
/** Number of peers that we're connected to */
|
|
uint16_t peersConnected;
|
|
|
|
/** How many peers we found out about from the tracker, or from pex,
|
|
or from incoming connections, or from our resume file. */
|
|
uint16_t peersFrom[TR_PEER_FROM__MAX];
|
|
|
|
/** Number of peers that are sending data to us. */
|
|
uint16_t peersSendingToUs;
|
|
|
|
/** Number of peers that we're sending data to */
|
|
uint16_t peersGettingFromUs;
|
|
|
|
/** Number of webseeds that are sending data to us. */
|
|
uint16_t webseedsSendingToUs;
|
|
|
|
/** A torrent is considered finished if it has met its seed ratio.
|
|
As a result, only paused torrents can be finished. */
|
|
bool finished;
|
|
|
|
/** True if the torrent is running, but has been idle for long enough
|
|
to be considered stalled. @see `tr_sessionGetQueueStalledMinutes()` */
|
|
bool isStalled;
|
|
};
|
|
|
|
/** Return a pointer to an `tr_stat` structure with updated information
|
|
on the torrent. This is typically called by the GUI clients every
|
|
second or so to get a new snapshot of the torrent's status. */
|
|
tr_stat const* tr_torrentStat(tr_torrent* torrent);
|
|
|
|
/** Like `tr_torrentStat()`, but only recalculates the statistics if it's
|
|
been longer than a second since they were last calculated. This can
|
|
reduce the CPU load if you're calling `tr_torrentStat()` frequently. */
|
|
tr_stat const* tr_torrentStatCached(tr_torrent* torrent);
|
|
|
|
/** @} */
|
|
|
|
/** @brief Sanity checker to test that the direction is `TR_UP` or `TR_DOWN` */
|
|
constexpr bool tr_isDirection(tr_direction d)
|
|
{
|
|
return d == TR_UP || d == TR_DOWN;
|
|
}
|