/* * This file Copyright (C) Transmission authors and contributors * * It may be used under the 3-Clause BSD License, the GNU Public License v2, * or v3, or any future license endorsed by Mnemosyne LLC. * */ /* * This file defines the public API for the libtransmission library. * The other public API headers are variant.h and utils.h; * most of the remaining headers in libtransmission are private. */ #pragma once #ifdef __cplusplus extern "C" { #endif /*** **** **** Basic Types **** ***/ #include /* bool */ #include /* size_t */ #include /* uintN_t */ #include /* time_t */ #include "tr-macros.h" typedef uint32_t tr_file_index_t; typedef uint32_t tr_piece_index_t; /* assuming a 16 KiB block, a 32-bit block index gives us a maximum torrent size of 63 TiB. * if we ever need to grow past that, change this to uint64_t ;) */ typedef uint32_t tr_block_index_t; typedef uint16_t tr_port; typedef struct tr_ctor tr_ctor; typedef struct tr_info tr_info; typedef struct tr_torrent tr_torrent; typedef struct tr_session tr_session; struct tr_error; struct tr_variant; typedef int8_t tr_priority_t; #define TR_RPC_SESSION_ID_HEADER "X-Transmission-Session-Id" typedef enum { TR_PREALLOCATE_NONE = 0, TR_PREALLOCATE_SPARSE = 1, TR_PREALLOCATE_FULL = 2 } tr_preallocation_mode; typedef enum { TR_CLEAR_PREFERRED, TR_ENCRYPTION_PREFERRED, TR_ENCRYPTION_REQUIRED } tr_encryption_mode; /*** **** **** Startup & Shutdown **** ***/ /** * @addtogroup tr_session Session * * A libtransmission session is created by calling tr_sessionInit(). * libtransmission creates a thread for itself so that it can operate * independently of the caller's event loop. The session will continue * until tr_sessionClose() is called. * * @{ */ /** * @brief returns Transmission's default configuration file directory. * * The default configuration directory is determined this way: * -# If the TRANSMISSION_HOME environment variable is set, its value is used. * -# On Darwin, "${HOME}/Library/Application Support/${appname}" is used. * -# On Windows, "${CSIDL_APPDATA}/${appname}" is used. * -# If XDG_CONFIG_HOME is set, "${XDG_CONFIG_HOME}/${appname}" is used. * -# ${HOME}/.config/${appname}" is used as a last resort. */ char const* tr_getDefaultConfigDir(char const* appname); /** * @brief returns Transmisson's default download directory. * * The default download directory is determined this way: * -# If the HOME environment variable is set, "${HOME}/Downloads" is used. * -# On Windows, "${CSIDL_MYDOCUMENTS}/Downloads" is used. * -# Otherwise, getpwuid(getuid())->pw_dir + "/Downloads" is used. */ char const* tr_getDefaultDownloadDir(void); #define TR_DEFAULT_BIND_ADDRESS_IPV4 "0.0.0.0" #define TR_DEFAULT_BIND_ADDRESS_IPV6 "::" #define TR_DEFAULT_RPC_WHITELIST "127.0.0.1,::1" #define TR_DEFAULT_RPC_PORT_STR "9091" #define TR_DEFAULT_RPC_URL_STR "/transmission/" #define TR_DEFAULT_PEER_PORT_STR "51413" #define TR_DEFAULT_PEER_SOCKET_TOS_STR "default" #define TR_DEFAULT_PEER_LIMIT_GLOBAL_STR "200" #define TR_DEFAULT_PEER_LIMIT_TORRENT_STR "50" /** * Add libtransmission's default settings to the benc dictionary. * * Example: * @code * tr_variant settings; * int64_t i; * * tr_variantInitDict(&settings, 0); * tr_sessionGetDefaultSettings(&settings); * if (tr_variantDictFindInt(&settings, TR_PREFS_KEY_PEER_PORT, &i)) * fprintf(stderr, "the default peer port is %d\n", (int)i); * tr_variantFree(&settings); * @endcode * * @param setme_dictionary pointer to a tr_variant dictionary * @see tr_sessionLoadSettings() * @see tr_sessionInit() * @see tr_getDefaultConfigDir() */ void tr_sessionGetDefaultSettings(struct tr_variant* setme_dictionary); /** * Add the session's current configuration settings to the benc dictionary. * * FIXME: this probably belongs in libtransmissionapp * * @param session the session to query * @param setme_dictionary the dictionary to populate * @see tr_sessionGetDefaultSettings() */ void tr_sessionGetSettings(tr_session* session, struct tr_variant* setme_dictionary); /** * Load settings from the configuration directory's settings.json file, * using libtransmission's default settings as fallbacks for missing keys. * * FIXME: this belongs in libtransmissionapp * * @param dictionary pointer to an uninitialized tr_variant * @param configDir the configuration directory to find settings.json * @param appName if configDir is empty, appName is used to find the default dir. * @return success true if the settings were loaded, false otherwise * @see tr_sessionGetDefaultSettings() * @see tr_sessionInit() * @see tr_sessionSaveSettings() */ bool tr_sessionLoadSettings(struct tr_variant* dictionary, char const* configDir, char const* appName); /** * Add the session's configuration settings to the benc dictionary * and save it to the configuration directory's settings.json file. * * FIXME: this belongs in libtransmissionapp * * @param session the session to save * @param configDir the directory to write to * @param dictionary the dictionary to save * @see tr_sessionLoadSettings() */ void tr_sessionSaveSettings(tr_session* session, char const* configDir, struct tr_variant const* dictionary); /** * @brief Initialize a libtransmission session. * * For example, this will instantiate a session with all the default values: * @code * tr_variant settings; * tr_session* session; * char const* configDir; * * tr_variantInitDict(&settings, 0); * tr_sessionGetDefaultSettings(&settings); * configDir = tr_getDefaultConfigDir("Transmission"); * session = tr_sessionInit(configDir, true, &settings); * * tr_variantFree(&settings); * @endcode * * @param configDir where Transmission will look for resume files, blocklists, etc. * @param messageQueueingEnabled if false, messages will be dumped to stderr * @param settings libtransmission settings * @see tr_sessionGetDefaultSettings() * @see tr_sessionLoadSettings() * @see tr_getDefaultConfigDir() */ tr_session* tr_sessionInit(char const* configDir, bool messageQueueingEnabled, struct tr_variant* settings); /** @brief Update a session's settings from a benc dictionary like to the one used in tr_sessionInit() */ void tr_sessionSet(tr_session* session, struct tr_variant* settings); /** @brief Rescan the blocklists directory and reload whatever blocklist files are found there */ void tr_sessionReloadBlocklists(tr_session* session); /** @brief End a libtransmission session @see tr_sessionInit() */ void tr_sessionClose(tr_session*); /** * @brief Return the session's configuration directory. * * This is where transmission stores its .torrent files, .resume files, * blocklists, etc. It's set in tr_transmissionInit() and is immutable * during the session. */ char const* tr_sessionGetConfigDir(tr_session const*); /** * @brief Set the per-session default download folder for new torrents. * @see tr_sessionInit() * @see tr_sessionGetDownloadDir() * @see tr_ctorSetDownloadDir() */ void tr_sessionSetDownloadDir(tr_session* session, char const* downloadDir); /** * @brief Get the default download folder for new torrents. * * This is set by tr_sessionInit() or tr_sessionSetDownloadDir(), * and can be overridden on a per-torrent basis by tr_ctorSetDownloadDir(). */ char const* tr_sessionGetDownloadDir(tr_session const* session); /** * @brief Get available disk space (in bytes) for the specified directory. * @return zero or positive integer on success, -1 in case of error. */ int64_t tr_sessionGetDirFreeSpace(tr_session* session, char const* dir); /** * @brief Set the torrent's bandwidth priority. */ void tr_ctorSetBandwidthPriority(tr_ctor* ctor, tr_priority_t priority); /** * @brief Get the torrent's bandwidth priority. */ tr_priority_t tr_ctorGetBandwidthPriority(tr_ctor const* ctor); /** * @brief set the per-session incomplete download folder. * * When you add a new torrent and the session's incomplete directory is enabled, * the new torrent will start downloading into that directory, and then be moved * to tr_torrent.downloadDir when the torrent is finished downloading. * * Torrents aren't moved as a result of changing the session's incomplete dir -- * it's applied to new torrents, not existing ones. * * tr_torrentSetLocation() overrules the incomplete dir: when a user specifies * a new location, that becomes the torrent's new downloadDir and the torrent * is moved there immediately regardless of whether or not it's complete. * * @see tr_sessionInit() * @see tr_sessionGetIncompleteDir() * @see tr_sessionSetIncompleteDirEnabled() * @see tr_sessionGetIncompleteDirEnabled() */ void tr_sessionSetIncompleteDir(tr_session* session, char const* dir); /** @brief get the per-session incomplete download folder */ char const* tr_sessionGetIncompleteDir(tr_session const* session); /** @brief enable or disable use of the incomplete download folder */ void tr_sessionSetIncompleteDirEnabled(tr_session* session, bool); /** @brief get whether or not the incomplete download folder is enabled */ bool tr_sessionIsIncompleteDirEnabled(tr_session const* session); /** * @brief When enabled, newly-created files will have ".part" appended * to their filename until the file is fully downloaded * * This is not retroactive -- toggling this will not rename existing files. * It only applies to new files created by Transmission after this API call. * * @see tr_sessionIsIncompleteFileNamingEnabled() */ void tr_sessionSetIncompleteFileNamingEnabled(tr_session* session, bool); /** @brief return true if files will end in ".part" until they're complete */ bool tr_sessionIsIncompleteFileNamingEnabled(tr_session const* session); /** * @brief Set whether or not RPC calls are allowed in this session. * * @details If true, libtransmission will open a server socket to listen * for incoming http RPC requests as described in docs/rpc-spec.txt. * * This is intially set by tr_sessionInit() and can be * queried by tr_sessionIsRPCEnabled(). */ void tr_sessionSetRPCEnabled(tr_session* session, bool isEnabled); /** @brief Get whether or not RPC calls are allowed in this session. @see tr_sessionInit() @see tr_sessionSetRPCEnabled() */ bool tr_sessionIsRPCEnabled(tr_session const* session); /** @brief Specify which port to listen for RPC requests on. @see tr_sessionInit() @see tr_sessionGetRPCPort */ void tr_sessionSetRPCPort(tr_session* session, tr_port port); /** @brief Get which port to listen for RPC requests on. @see tr_sessionInit() @see tr_sessionSetRPCPort */ tr_port tr_sessionGetRPCPort(tr_session const* session); /** * @brief Specify which base URL to use. * * @param session the session to set * @param url the base url to use. The RPC API is accessible under /rpc, the web interface under * /web. * * @see tr_sessionGetRPCUrl */ void tr_sessionSetRPCUrl(tr_session* session, char const* url); /** * @brief Get the base URL. * @see tr_sessionInit() * @see tr_sessionSetRPCUrl */ char const* tr_sessionGetRPCUrl(tr_session const* session); /** * @brief Specify a whitelist for remote RPC access * * The whitelist is a comma-separated list of dotted-quad IP addresses * to be allowed. Wildmat notation is supported, meaning that * '?' is interpreted as a single-character wildcard and * '*' is interprted as a multi-character wildcard. */ void tr_sessionSetRPCWhitelist(tr_session* session, char const* whitelist); /** @brief get the Access Control List for allowing/denying RPC requests. @return a comma-separated string of whitelist domains. @see tr_sessionInit @see tr_sessionSetRPCWhitelist */ char const* tr_sessionGetRPCWhitelist(tr_session const*); void tr_sessionSetRPCWhitelistEnabled(tr_session* session, bool isEnabled); bool tr_sessionGetRPCWhitelistEnabled(tr_session const* session); void tr_sessionSetRPCPassword(tr_session* session, char const* password); void tr_sessionSetRPCUsername(tr_session* session, char const* username); /** @brief get the password used to restrict RPC requests. @return the password string. @see tr_sessionInit() @see tr_sessionSetRPCPassword() */ char const* tr_sessionGetRPCPassword(tr_session const* session); char const* tr_sessionGetRPCUsername(tr_session const* session); void tr_sessionSetRPCPasswordEnabled(tr_session* session, bool isEnabled); bool tr_sessionIsRPCPasswordEnabled(tr_session const* session); char const* tr_sessionGetRPCBindAddress(tr_session const* session); typedef enum { TR_RPC_TORRENT_ADDED, TR_RPC_TORRENT_STARTED, TR_RPC_TORRENT_STOPPED, TR_RPC_TORRENT_REMOVING, TR_RPC_TORRENT_TRASHING, /* _REMOVING + delete local data */ TR_RPC_TORRENT_CHANGED, /* catch-all for the "torrent-set" rpc method */ TR_RPC_TORRENT_MOVED, TR_RPC_SESSION_CHANGED, TR_RPC_SESSION_QUEUE_POSITIONS_CHANGED, /* catch potentially multiple torrents being moved in the queue */ TR_RPC_SESSION_CLOSE } tr_rpc_callback_type; typedef enum { /* no special handling is needed by the caller */ TR_RPC_OK = 0, /* indicates to the caller that the client will take care of * removing the torrent itself. For example the client may * need to keep the torrent alive long enough to cleanly close * some resources in another thread. */ TR_RPC_NOREMOVE = (1 << 1) } tr_rpc_callback_status; typedef tr_rpc_callback_status (* tr_rpc_func)(tr_session* session, tr_rpc_callback_type type, struct tr_torrent* tor_or_null, void* user_data); /** * Register to be notified whenever something is changed via RPC, * such as a torrent being added, removed, started, stopped, etc. * * func is invoked FROM LIBTRANSMISSION'S THREAD! * This means func 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! */ void tr_sessionSetRPCCallback(tr_session* session, tr_rpc_func func, void* user_data); /** *** **/ /** @brief Used by tr_sessionGetStats() and tr_sessionGetCumulativeStats() */ typedef struct tr_session_stats { float ratio; /* TR_RATIO_INF, TR_RATIO_NA, or total up/down */ uint64_t uploadedBytes; /* total up */ uint64_t downloadedBytes; /* total down */ uint64_t filesAdded; /* number of files added */ uint64_t sessionCount; /* program started N times */ uint64_t secondsActive; /* how long Transmisson's been running */ } tr_session_stats; /** @brief Get bandwidth use statistics for the current session */ void tr_sessionGetStats(tr_session const* session, tr_session_stats* setme); /** @brief Get cumulative bandwidth statistics for current and past sessions */ void tr_sessionGetCumulativeStats(tr_session const* session, tr_session_stats* setme); void tr_sessionClearStats(tr_session* session); /** * @brief Set whether or not torrents are allowed to do peer exchanges. * * PEX is always disabled in private torrents regardless of this. * In public torrents, PEX is enabled by default. */ void tr_sessionSetPexEnabled(tr_session* session, bool isEnabled); bool tr_sessionIsPexEnabled(tr_session const* session); bool tr_sessionIsDHTEnabled(tr_session const* session); void tr_sessionSetDHTEnabled(tr_session* session, bool); bool tr_sessionIsUTPEnabled(tr_session const* session); void tr_sessionSetUTPEnabled(tr_session* session, bool); bool tr_sessionIsLPDEnabled(tr_session const* session); void tr_sessionSetLPDEnabled(tr_session* session, bool enabled); void tr_sessionSetCacheLimit_MB(tr_session* session, int mb); int tr_sessionGetCacheLimit_MB(tr_session const* session); tr_encryption_mode tr_sessionGetEncryption(tr_session* session); void tr_sessionSetEncryption(tr_session* session, tr_encryption_mode mode); /*********************************************************************** ** Incoming Peer Connections Port */ void tr_sessionSetPortForwardingEnabled(tr_session* session, bool enabled); bool tr_sessionIsPortForwardingEnabled(tr_session const* session); void tr_sessionSetPeerPort(tr_session* session, tr_port port); tr_port tr_sessionGetPeerPort(tr_session const* session); tr_port tr_sessionSetPeerPortRandom(tr_session* session); void tr_sessionSetPeerPortRandomOnStart(tr_session* session, bool random); bool tr_sessionGetPeerPortRandomOnStart(tr_session* session); typedef enum { TR_PORT_ERROR, TR_PORT_UNMAPPED, TR_PORT_UNMAPPING, TR_PORT_MAPPING, TR_PORT_MAPPED } tr_port_forwarding; tr_port_forwarding tr_sessionGetPortForwarding(tr_session const* session); typedef enum { TR_CLIENT_TO_PEER = 0, TR_UP = 0, TR_PEER_TO_CLIENT = 1, TR_DOWN = 1 } tr_direction; /*** **** ***/ /*** **** Primary session speed limits ***/ void tr_sessionSetSpeedLimit_KBps(tr_session*, tr_direction, unsigned int KBps); unsigned int tr_sessionGetSpeedLimit_KBps(tr_session const*, tr_direction); void tr_sessionLimitSpeed(tr_session*, tr_direction, bool); bool tr_sessionIsSpeedLimited(tr_session const*, tr_direction); /*** **** Alternative speed limits that are used during scheduled times ***/ void tr_sessionSetAltSpeed_KBps(tr_session*, tr_direction, unsigned int Bps); unsigned int tr_sessionGetAltSpeed_KBps(tr_session const*, tr_direction); void tr_sessionUseAltSpeed(tr_session*, bool); bool tr_sessionUsesAltSpeed(tr_session const*); void tr_sessionUseAltSpeedTime(tr_session*, bool); bool tr_sessionUsesAltSpeedTime(tr_session const*); void tr_sessionSetAltSpeedBegin(tr_session*, int minsSinceMidnight); int tr_sessionGetAltSpeedBegin(tr_session const*); void tr_sessionSetAltSpeedEnd(tr_session*, int minsSinceMidnight); int tr_sessionGetAltSpeedEnd(tr_session const*); typedef enum { 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; void tr_sessionSetAltSpeedDay(tr_session*, tr_sched_day day); tr_sched_day tr_sessionGetAltSpeedDay(tr_session const*); typedef void (* tr_altSpeedFunc)(tr_session*, bool active, bool userDriven, void*); void tr_sessionClearAltSpeedFunc(tr_session*); void tr_sessionSetAltSpeedFunc(tr_session*, tr_altSpeedFunc, void*); bool tr_sessionGetActiveSpeedLimit_KBps(tr_session const* session, tr_direction dir, double* setme); /*** **** ***/ double tr_sessionGetRawSpeed_KBps(tr_session const*, tr_direction); void tr_sessionSetRatioLimited(tr_session*, bool isLimited); bool tr_sessionIsRatioLimited(tr_session const*); void tr_sessionSetRatioLimit(tr_session*, double desiredRatio); double tr_sessionGetRatioLimit(tr_session const*); void tr_sessionSetIdleLimited(tr_session*, bool isLimited); bool tr_sessionIsIdleLimited(tr_session const*); void tr_sessionSetIdleLimit(tr_session*, uint16_t idleMinutes); uint16_t tr_sessionGetIdleLimit(tr_session const*); void tr_sessionSetPeerLimit(tr_session*, uint16_t maxGlobalPeers); uint16_t tr_sessionGetPeerLimit(tr_session const*); void tr_sessionSetPeerLimitPerTorrent(tr_session*, uint16_t maxPeers); uint16_t tr_sessionGetPeerLimitPerTorrent(tr_session const*); void tr_sessionSetPaused(tr_session*, bool isPaused); bool tr_sessionGetPaused(tr_session const*); void tr_sessionSetDeleteSource(tr_session*, bool deleteSource); bool tr_sessionGetDeleteSource(tr_session const*); tr_priority_t tr_torrentGetPriority(tr_torrent const*); void tr_torrentSetPriority(tr_torrent*, tr_priority_t); /*** **** **** 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*); /** @brief Return the queued torrent's position in the queue it's in. [0...n) */ int tr_torrentGetQueuePosition(tr_torrent const*); /** @brief Set the queued torrent's position in the queue it's in. * Special cases: pos <= 0 moves to the front; pos >= queue length moves to the back */ void tr_torrentSetQueuePosition(tr_torrent*, int queuePosition); /** **/ /** @brief Convenience function for moving a batch of torrents to the front of their queue(s) */ void tr_torrentsQueueMoveTop(tr_torrent** torrents, int torrentCount); /** @brief Convenience function for moving a batch of torrents ahead one step in their queue(s) */ void tr_torrentsQueueMoveUp(tr_torrent** torrents, int torrentCount); /** @brief Convenience function for moving a batch of torrents back one step in their queue(s) */ void tr_torrentsQueueMoveDown(tr_torrent** torrents, int torrentCount); /** @brief Convenience function for moving a batch of torrents to the back of their queue(s) */ void tr_torrentsQueueMoveBottom(tr_torrent** torrents, int torrentCount); /** **/ /** @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*, tr_direction, int max_simultaneous_seed_torrents); /** @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 */ int tr_sessionGetQueueSize(tr_session const*, tr_direction); /** @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*, tr_direction, bool do_limit_simultaneous_seed_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*, tr_direction); /** **/ /** @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*, int minutes); /** @return the number of minutes a torrent can be idle before being considered as stalled */ int tr_sessionGetQueueStalledMinutes(tr_session const*); /** @brief Set whether or not to count torrents idle for over N minutes as 'stalled' */ void tr_sessionSetQueueStalledEnabled(tr_session*, bool); /** @return true if we're torrents idle for over N minutes will be flagged as 'stalled' */ bool tr_sessionGetQueueStalledEnabled(tr_session const*); /** **/ /** @brief Set a callback that is invoked when the queue starts a torrent */ void tr_torrentSetQueueStartCallback(tr_torrent* torrent, void (* callback)(tr_torrent*, void*), void* user_data); /*** **** **** ***/ /** * Load all the torrents in tr_getTorrentDir(). * This can be used at startup to kickstart all the torrents * from the previous session. */ tr_torrent** tr_sessionLoadTorrents(tr_session* session, tr_ctor* ctor, int* setmeCount); /** *** **/ bool tr_sessionIsTorrentDoneScriptEnabled(tr_session const*); void tr_sessionSetTorrentDoneScriptEnabled(tr_session*, bool isEnabled); char const* tr_sessionGetTorrentDoneScript(tr_session const*); void tr_sessionSetTorrentDoneScript(tr_session*, char const* scriptFilename); /** @} */ /** *** **/ /*********************************************************************** ** Message Logging */ typedef enum { TR_LOG_ERROR = 1, TR_LOG_INFO = 2, TR_LOG_DEBUG = 3, TR_LOG_FIREHOSE = 4 } tr_log_level; void tr_logSetLevel(tr_log_level); typedef struct tr_log_message { /* TR_LOG_ERROR, TR_LOG_INFO, or TR_LOG_DEBUG */ tr_log_level level; /* The line number in the source file where this message originated */ int line; /* Time the message was generated */ time_t when; /* The torrent associated with this message, * or a module name such as "Port Forwarding" for non-torrent messages, * or NULL. */ char* name; /* The message */ char* message; /* The source file where this message originated */ char const* file; /* linked list of messages */ struct tr_log_message* next; } tr_log_message; tr_log_message* tr_logGetQueue(void); bool tr_logGetQueueEnabled(void); void tr_logSetQueueEnabled(bool isEnabled); void tr_logFreeQueue(tr_log_message* freeme); /** @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 NULL for a filename will clear the blocklist. */ int tr_blocklistSetContent(tr_session* session, char const* filename); int 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 isEnabled); /** @brief The blocklist that ges updated when an RPC client invokes the "blocklist-update" method */ void tr_blocklistSetURL(tr_session*, char const* url); char const* tr_blocklistGetURL(tr_session const*); /** @brief the file in the $config/blocklists/ directory that's used by tr_blocklistSetContent() and "blocklist-update" */ #define DEFAULT_BLOCKLIST_FILENAME "blocklist.bin" /** @} */ /** @addtogroup tr_ctor Torrent Constructors @{ Instantiating a tr_torrent had gotten more complicated as features were added. At one point there were four functions to check metainfo and five to create a tr_torrent object. To remedy this, a Torrent Constructor (struct tr_ctor) has been introduced: - Simplifies the API to two functions: tr_torrentParse() and tr_torrentNew() - You can set the fields you want; the system sets defaults for the rest. - You can specify whether or not your fields should supercede resume's. - We can add new features to tr_ctor without breaking tr_torrentNew()'s API. All the tr_ctor{Get,Set}* () functions with a return value return an error number, or zero if no error occurred. You must call one of the SetMetainfo() functions before creating a torrent with a tr_ctor. The other functions are optional. You can reuse a single tr_ctor to create a batch of torrents -- just call one of the SetMetainfo() functions between each tr_torrentNew() call. Every call to tr_ctorSetMetainfo* () frees the previous metainfo. */ typedef enum { 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 */ } tr_ctorMode; /** @brief Create a torrent constructor object used to instantiate a tr_torrent @param session_or_NULL the tr_session. This is required if you're going to call tr_torrentNew(), but you can use NULL for tr_torrentParse(). @see tr_torrentNew(), tr_torrentParse() */ tr_ctor* tr_ctorNew(tr_session const* session_or_NULL); /** @brief Free a torrent constructor object */ void tr_ctorFree(tr_ctor* ctor); /** @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 doDelete); /** @brief Set the constructor's metainfo from a magnet link */ int tr_ctorSetMetainfoFromMagnetLink(tr_ctor* ctor, char const* magnet); /** @brief Set the constructor's metainfo from a raw benc already in memory */ int tr_ctorSetMetainfo(tr_ctor* ctor, uint8_t const* metainfo, size_t len); /** @brief Set the constructor's metainfo from a local .torrent file */ int tr_ctorSetMetainfoFromFile(tr_ctor* ctor, char const* filename); /** * @brief Set the metainfo from an existing file in tr_getTorrentDir(). * * This is used by the Mac client on startup to pick and choose which * torrents to load */ int tr_ctorSetMetainfoFromHash(tr_ctor* ctor, char const* hashString); /** @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 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); /** Set whether or not the torrent begins downloading/seeding when created. (Default: not paused) */ void tr_ctorSetPaused(tr_ctor* ctor, tr_ctorMode mode, bool isPaused); /** @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 fileCount, 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* fileIndices, tr_file_index_t fileCount, bool wanted); /** @brief Get this peer constructor's peer limit */ bool tr_ctorGetPeerLimit(tr_ctor const* ctor, tr_ctorMode mode, uint16_t* setmeCount); /** @brief Get the "isPaused" flag from this peer constructor */ bool tr_ctorGetPaused(tr_ctor const* ctor, tr_ctorMode mode, bool* setmeIsPaused); /** @brief Get the download path from this peer constructor */ bool tr_ctorGetDownloadDir(tr_ctor const* ctor, tr_ctorMode mode, char const** setmeDownloadDir); /** @brief Get the incomplete directory from this peer constructor */ bool tr_ctorGetIncompleteDir(tr_ctor const* ctor, char const** setmeIncompleteDir); /** @brief Get the metainfo from this peer constructor */ bool tr_ctorGetMetainfo(tr_ctor const* ctor, struct tr_variant const** setme); /** @brief Get the "delete .torrent file" flag from this peer constructor */ bool tr_ctorGetDeleteSource(tr_ctor const* ctor, bool* setmeDoDelete); /** @brief Get the tr_session poiner from this peer constructor */ tr_session* tr_ctorGetSession(tr_ctor const* ctor); /** @brief Get the .torrent file that this ctor's metainfo came from, or NULL if tr_ctorSetMetainfoFromFile() wasn't used */ char const* tr_ctorGetSourceFile(tr_ctor const* ctor); typedef enum { TR_PARSE_OK, TR_PARSE_ERR, TR_PARSE_DUPLICATE } tr_parse_result; /** * @brief Parses the specified metainfo * * @return TR_PARSE_ERR if parsing failed; * TR_PARSE_OK if parsing succeeded and it's not a duplicate; * TR_PARSE_DUPLICATE if parsing succeeded but it's a duplicate. * * @param setme_info_or_NULL If parsing is successful and setme_info is non-NULL, * the parsed metainfo is stored there and sould be freed * by calling tr_metainfoFree() when no longer needed. * * Notes: * * 1. tr_torrentParse() won't be able to check for duplicates -- and therefore * won't return TR_PARSE_DUPLICATE -- unless ctor's "download-dir" and * session variable is set. * * 2. setme_info->torrent's value can't be set unless ctor's session variable * is set. */ tr_parse_result tr_torrentParse(tr_ctor const* ctor, tr_info* setme_info_or_NULL); /** @brief free a metainfo @see tr_torrentParse */ void tr_metainfoFree(tr_info* inf); /** * Instantiate a single torrent. * * Returns a pointer to the torrent on success, or NULL on failure. * * @param ctor the builder struct * @param setme_error TR_PARSE_ERR if the parsing failed; * TR_PARSE_OK if parsing succeeded and it's not a duplicate; * TR_PARSE_DUPLICATE if parsing succeeded but it's a duplicate. * @param setme_duplicate_id when setmeError is TR_PARSE_DUPLICATE, * this field is set to the duplicate torrent's id. */ tr_torrent* tr_torrentNew(tr_ctor const* ctor, int* setme_error, int* setme_duplicate_id); /** @} */ /*********************************************************************** *** *** TORRENTS **/ /** @addtogroup tr_torrent Torrents @{ */ typedef bool (* tr_fileFunc)(char const* filename, struct tr_error** error); /** @brief Removes our .torrent and .resume files for this torrent */ void tr_torrentRemove(tr_torrent* torrent, bool removeLocalData, tr_fileFunc removeFunc); /** @brief Start a torrent */ void tr_torrentStart(tr_torrent* torrent); /** @brief Stop (pause) a torrent */ void tr_torrentStop(tr_torrent* torrent); typedef void (* tr_torrent_rename_done_func)(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 NULL * @param callback_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_info.name. * * EXAMPLES * * Consider a tr_torrent where its * info.files[0].name is "frobnitz-linux/checksum" and * info.files[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 info.name * and info.files[*].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 tr_info's contents requires a session 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 NULL 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 NULL, "", * ".", 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_data); enum { TR_LOC_MOVING, TR_LOC_DONE, TR_LOC_ERROR }; /** * @brief Tell transmsision where to find this torrent's local data. * * if move_from_previous_location is `true', the torrent's incompleteDir * will be clobberred 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_previous_location, 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 good as simple lookup keys, but are not persistent * between sessions. If you need that, use tr_info.hash or * tr_info.hashString. */ int tr_torrentId(tr_torrent const* torrent); tr_torrent* tr_torrentFindFromId(tr_session* session, int id); tr_torrent* tr_torrentFindFromHash(tr_session* session, uint8_t const* hash); /** @brief Convenience function similar to tr_torrentFindFromHash() */ tr_torrent* tr_torrentFindFromMagnetLink(tr_session* session, char const* link); /** * @return this torrent's name. */ char const* tr_torrentName(tr_torrent const*); /** * @brief find the location of a torrent's file by looking with and without * the ".part" suffix, looking in downloadDir and incompleteDir, etc. * @return a newly-allocated string (that must be tr_free()d by the caller * when done) that gives the location of this file on disk, * or NULL if no file exists yet. * @param tor the torrent whose file we're looking for * @param fileNum the fileIndex, in [0...tr_info.fileCount) */ char* tr_torrentFindFile(tr_torrent const* tor, tr_file_index_t fileNum); /*** **** Torrent speed limits **** ***/ void tr_torrentSetSpeedLimit_KBps(tr_torrent*, tr_direction, unsigned int KBps); unsigned int tr_torrentGetSpeedLimit_KBps(tr_torrent const*, tr_direction); void tr_torrentUseSpeedLimit(tr_torrent*, tr_direction, bool); bool tr_torrentUsesSpeedLimit(tr_torrent const*, tr_direction); void tr_torrentUseSessionLimits(tr_torrent*, bool); bool tr_torrentUsesSessionLimits(tr_torrent const*); /**** ***** Ratio Limits ****/ typedef enum { /* 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; void tr_torrentSetRatioMode(tr_torrent* tor, tr_ratiolimit mode); tr_ratiolimit tr_torrentGetRatioMode(tr_torrent const* tor); void tr_torrentSetRatioLimit(tr_torrent* tor, double ratio); double tr_torrentGetRatioLimit(tr_torrent const* tor); bool tr_torrentGetSeedRatio(tr_torrent const*, double* ratio); /**** ***** Idle Time Limits ****/ typedef enum { /* 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; void tr_torrentSetIdleMode(tr_torrent* tor, tr_idlelimit mode); tr_idlelimit tr_torrentGetIdleMode(tr_torrent const* tor); void tr_torrentSetIdleLimit(tr_torrent* tor, uint16_t idleMinutes); uint16_t tr_torrentGetIdleLimit(tr_torrent const* tor); bool tr_torrentGetSeedIdle(tr_torrent const*, uint16_t* minutes); /**** ***** Peer Limits ****/ void tr_torrentSetPeerLimit(tr_torrent* tor, uint16_t peerLimit); uint16_t tr_torrentGetPeerLimit(tr_torrent const* tor); /**** ***** 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 fileCount, tr_priority_t priority); /** * @brief Get this torrent's file priorities. * * @return A malloc()ed array of tor->info.fileCount items, * each holding a TR_PRI_NORMAL, TR_PRI_HIGH, or TR_PRI_LOW. * It's the caller's responsibility to free() this. */ tr_priority_t* tr_torrentGetFilePriorities(tr_torrent const* torrent); /** @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 fileCount, bool do_download); tr_info const* tr_torrentInfo(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); char const* tr_torrentGetDownloadDir(tr_torrent const* torrent); /** * 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); char* tr_torrentInfoGetMagnetLink(tr_info const* inf); /** * Returns a newly-allocated string with a magnet link of the torrent. * Use tr_free() to free the string when done. */ static inline char* tr_torrentGetMagnetLink(tr_torrent const* tor) { return tr_torrentInfoGetMagnetLink(tr_torrentInfo(tor)); } /** *** **/ /** @brief a part of tr_info that represents a single tracker */ typedef struct tr_tracker_info { int tier; char* announce; char* scrape; uint32_t id; /* unique identifier used to match to a tr_tracker_stat */ } tr_tracker_info; /** * @brief Modify a torrent's tracker list. * * This updates both the `torrent' object's tracker list * and the metainfo file in tr_sessionGetConfigDir()'s torrent subdirectory. * * @param torrent The torrent whose tracker list is to be modified * @param trackers An array of trackers, sorted by tier from first to last. * NOTE: only the `tier' and `announce' fields are used. * libtransmission derives `scrape' from `announce' * and reassigns 'id'. * @param trackerCount size of the `trackers' array */ bool tr_torrentSetAnnounceList(tr_torrent* torrent, tr_tracker_info const* trackers, int trackerCount); /** *** **/ typedef enum { 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 */ } tr_completeness; /** * @param wasRunning whether or not the torrent was running when * it changed its completeness state */ typedef void (* tr_torrent_completeness_func)(tr_torrent* torrent, tr_completeness completeness, bool wasRunning, void* user_data); typedef void (* tr_torrent_ratio_limit_hit_func)(tr_torrent* torrent, void* user_data); typedef void (* tr_torrent_idle_limit_hit_func)(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. * * func is invoked FROM LIBTRANSMISSION'S THREAD! * This means func 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_torrentSetCompletenessCallback(tr_torrent* torrent, tr_torrent_completeness_func func, void* user_data); void tr_torrentClearCompletenessCallback(tr_torrent* torrent); typedef void (* tr_torrent_metadata_func)(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_torrentSetMetadataCallback(tr_torrent* tor, tr_torrent_metadata_func func, 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_torrentSetCompletenessCallback */ void tr_torrentSetRatioLimitHitCallback(tr_torrent* torrent, tr_torrent_ratio_limit_hit_func func, void* user_data); void tr_torrentClearRatioLimitHitCallback(tr_torrent* torrent); /** * 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_torrentSetCompletenessCallback */ void tr_torrentSetIdleLimitHitCallback(tr_torrent* torrent, tr_torrent_idle_limit_hit_func func, void* user_data); void tr_torrentClearIdleLimitHitCallback(tr_torrent* torrent); /** * 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 ***/ typedef 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; tr_port port; char addr[TR_INET6_ADDRSTRLEN]; char client[80]; char flagStr[32]; 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 */ int pendingReqsToClient; /* how many requests we've made and are currently awaiting a response for */ int pendingReqsToPeer; } tr_peer_stat; tr_peer_stat* tr_torrentPeers(tr_torrent const* torrent, int* peerCount); void tr_torrentPeersFree(tr_peer_stat* peerStats, int peerCount); /*** **** tr_tracker_stat ***/ typedef enum { /* 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 * 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 } tr_tracker_state; typedef struct { /* how many downloads this tracker knows of (-1 means it does not know) */ int downloadCount; /* whether or not we've ever sent this tracker an announcement */ bool hasAnnounced; /* whether or not we've ever scraped to this tracker */ bool hasScraped; /* human-readable string identifying the tracker */ char host[1024]; /* the full announce URL */ char announce[1024]; /* the full scrape URL */ char scrape[1024]; /* Transmission uses one tracker per tier, * and the others are kept as backups */ bool isBackup; /* is the tracker announcing, waiting, queued, etc */ tr_tracker_state announceState; /* is the tracker scraping, waiting, queued, etc */ tr_tracker_state scrapeState; /* number of peers the tracker told us about last time. * if "lastAnnounceSucceeded" is false, this field is undefined */ int lastAnnouncePeerCount; /* human-readable string with the result of the last announce. if "hasAnnounced" is false, this field is undefined */ char lastAnnounceResult[128]; /* when the last announce was sent to the tracker. * if "hasAnnounced" is false, this field is undefined */ time_t lastAnnounceStartTime; /* whether or not the last announce was a success. if "hasAnnounced" is false, this field is undefined */ bool lastAnnounceSucceeded; /* whether or not the last announce timed out. */ bool lastAnnounceTimedOut; /* when the last announce was completed. if "hasAnnounced" is false, this field is undefined */ time_t lastAnnounceTime; /* human-readable string with the result of the last scrape. * if "hasScraped" is false, this field is undefined */ char lastScrapeResult[128]; /* when the last scrape was sent to the tracker. * if "hasScraped" is false, this field is undefined */ time_t lastScrapeStartTime; /* whether or not the last scrape was a success. if "hasAnnounced" is false, this field is undefined */ bool lastScrapeSucceeded; /* whether or not the last scrape timed out. */ bool lastScrapeTimedOut; /* when the last scrape was completed. if "hasScraped" is false, this field is undefined */ time_t lastScrapeTime; /* number of leechers this tracker knows of (-1 means it does not know) */ int leecherCount; /* when the next periodic announce message will be sent out. if announceState isn't TR_TRACKER_WAITING, this field is undefined */ time_t nextAnnounceTime; /* when the next periodic scrape message will be sent out. if scrapeState isn't TR_TRACKER_WAITING, this field is undefined */ time_t nextScrapeTime; /* number of seeders this tracker knows of (-1 means it does not know) */ int seederCount; /* which tier this tracker is in */ int tier; /* used to match to a tr_tracker_info */ uint32_t id; } tr_tracker_stat; tr_tracker_stat* tr_torrentTrackers(tr_torrent const* torrent, int* setmeTrackerCount); void tr_torrentTrackersFree(tr_tracker_stat* trackerStats, int trackerCount); /** * @brief get the download speeds for each of this torrent's webseed sources. * * @return an array of tor->info.webseedCount floats giving download speeds. * Each speed in the array corresponds to the webseed at the same * array index in tor->info.webseeds. * To differentiate "idle" and "stalled" status, idle webseeds will * return -1 instead of 0 KiB/s. * NOTE: always free this array with tr_free() when you're done with it. */ double* tr_torrentWebSpeeds_KBps(tr_torrent const* torrent); typedef struct tr_file_stat { uint64_t bytesCompleted; float progress; } tr_file_stat; tr_file_stat* tr_torrentFiles(tr_torrent const* torrent, tr_file_index_t* fileCount); void tr_torrentFilesFree(tr_file_stat* files, tr_file_index_t fileCount); /*********************************************************************** * tr_torrentAvailability *********************************************************************** * 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 size); /** * Callback function invoked when a torrent finishes being verified. * * @param torrent the torrent that was verified * @param aborted true if the verify ended prematurely for some reason, * such as tr_torrentStop() or tr_torrentSetLocation() * being called during verification. * @param user_data the user-defined pointer from tr_torrentVerify() */ typedef void (* tr_verify_done_func)(tr_torrent* torrent, bool aborted, void* user_data); /** * Queue a torrent for verification. * * If callback_func is non-NULL, it will be called from the libtransmission * thread after the torrent's completness state is updated after the * file verification pass. */ void tr_torrentVerify(tr_torrent* torrent, tr_verify_done_func callback_func_or_NULL, void* callback_data_or_NULL); /*********************************************************************** * tr_info **********************************************************************/ /** @brief a part of tr_info that represents a single file of the torrent's content */ typedef struct tr_file { uint64_t length; /* Length of the file, in bytes */ char* name; /* Path to the file */ int8_t priority; /* TR_PRI_HIGH, _NORMAL, or _LOW */ int8_t dnd; /* "do not download" flag */ int8_t is_renamed; /* true if we're using a different path from the one in the metainfo; ie, if the user has renamed it */ tr_piece_index_t firstPiece; /* We need pieces [firstPiece... */ tr_piece_index_t lastPiece; /* ...lastPiece] to dl this file */ uint64_t offset; /* file begins at the torrent's nth byte */ } tr_file; /** @brief a part of tr_info that represents a single piece of the torrent's content */ typedef struct tr_piece { time_t timeChecked; /* the last time we tested this piece */ uint8_t hash[SHA_DIGEST_LENGTH]; /* pieces hash */ int8_t priority; /* TR_PRI_HIGH, _NORMAL, or _LOW */ int8_t dnd; /* "do not download" flag */ } tr_piece; /** @brief information about a torrent that comes from its metainfo file */ struct tr_info { /* total size of the torrent, in bytes */ uint64_t totalSize; /* The original name that came in this torrent's metainfo. * CLIENT CODE: NOT USE THIS FIELD. */ char* originalName; /* The torrent's name. */ char* name; /* Path to torrent Transmission's internal copy of the .torrent file. */ char* torrent; char** webseeds; char* comment; char* creator; tr_file* files; tr_piece* pieces; /* these trackers are sorted by tier */ tr_tracker_info* trackers; /* Torrent info */ time_t dateCreated; unsigned int trackerCount; unsigned int webseedCount; tr_file_index_t fileCount; uint32_t pieceSize; tr_piece_index_t pieceCount; /* General info */ uint8_t hash[SHA_DIGEST_LENGTH]; char hashString[2 * SHA_DIGEST_LENGTH + 1]; /* Flags */ bool isPrivate; bool isFolder; }; static inline bool tr_torrentHasMetadata(tr_torrent const* tor) { return tr_torrentInfo(tor)->fileCount > 0; } /** * 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 */ typedef enum { 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 */ } tr_torrent_activity; 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 }; typedef enum { /* everything's fine */ TR_STAT_OK = 0, /* when we anounced to the tracker, we got a warning in the response */ TR_STAT_TRACKER_WARNING = 1, /* when we anounced 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 } tr_stat_errtype; /** @brief Used by tr_torrentStat() to tell clients about a torrent's state and statistics */ typedef struct tr_stat { /** The torrent's unique Id. @see tr_torrentId() */ int id; /** 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; /** A warning or error message regarding the torrent. @see error */ char errorString[512]; /** 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 data being sent for this torrent. This includes piece data, protocol messages, and TCP overhead */ float rawUploadSpeed_KBps; /** Speed all data being received for this torrent. This includes piece data, protocol messages, and TCP overhead */ float rawDownloadSpeed_KBps; /** 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; #define TR_ETA_NOT_AVAIL -1 #define TR_ETA_UNKNOWN -2 /** If downloading, estimated number of seconds left until the torrent is done. If seeding, estimated number of seconds left until seed ratio is reached. */ int eta; /** If seeding, number of seconds left until the idle time limit is reached. */ int etaIdle; /** Number of peers that we're connected to */ int peersConnected; /** How many peers we found out about from the tracker, or from pex, or from incoming connections, or from our resume file. */ int peersFrom[TR_PEER_FROM__MAX]; /** Number of peers that are sending data to us. */ int peersSendingToUs; /** Number of peers that we're sending data to */ int peersGettingFromUs; /** Number of webseeds that are sending data to us. */ int webseedsSendingToUs; /** 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_info.totalSize if only some of the torrent's files are wanted. [0...tr_info.totalSize] */ 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_info.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; /** time when one or more of the torrent's trackers will allow you to manually ask for more peers, or 0 if you can't */ time_t manualAnnounceTime; #define TR_RATIO_NA -1 #define TR_RATIO_INF -2 /** TR_RATIO_INF, TR_RATIO_NA, or a regular ratio */ float ratio; /** 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; /** Number of seconds since the last activity (or since started). -1 if activity is not seeding or downloading. */ int idleSecs; /** Cumulative seconds the torrent's ever spent downloading */ int secondsDownloading; /** Cumulative seconds the torrent's ever spent seeding */ int secondsSeeding; /** A torrent is considered finished if it has met its seed ratio. As a result, only paused torrents can be finished. */ bool finished; /** This torrent's queue position. All torrents have a queue position, even if it's not queued. */ int queuePosition; /** True if the torrent is running, but has been idle for long enough to be considered stalled. @see tr_sessionGetQueueStalledMinutes() */ bool isStalled; } tr_stat; /** 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); /** @deprecated */ TR_DEPRECATED void tr_torrentSetAddedDate(tr_torrent* torrent, time_t addedDate); /** @deprecated */ TR_DEPRECATED void tr_torrentSetActivityDate(tr_torrent* torrent, time_t activityDate); /** @deprecated */ TR_DEPRECATED void tr_torrentSetDoneDate(tr_torrent* torrent, time_t doneDate); /** @} */ /** @brief Sanity checker to test that the direction is TR_UP or TR_DOWN */ static inline bool tr_isDirection(tr_direction d) { return d == TR_UP || d == TR_DOWN; } #ifdef __cplusplus } #endif