/****************************************************************************** * $Id: transmission.h 13191 2012-02-03 16:44:07Z jordan $ * * Copyright (c) Transmission authors and contributors * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. *****************************************************************************/ /* * This file defines the public API for the libtransmission library. * * Other headers with a public API are bencode.h and utils.h. * Most of the remaining headers in libtransmission are private. */ #ifndef TR_TRANSMISSION_H #define TR_TRANSMISSION_H 1 #ifdef __cplusplus extern "C" { #endif /*** **** **** Basic Types **** ***/ #include /* uintN_t */ #include /* time_t */ #if !defined(__cplusplus) #ifdef HAVE_STDBOOL_H #include #elif !defined(__bool_true_false_are_defined) #define bool uint8_t #define true 1 #define false 0 #endif #endif #ifndef PRId64 #define PRId64 "lld" #endif #ifndef PRIu64 #define PRIu64 "llu" #endif #ifndef PRIu32 #define PRIu32 "lu" #endif #if defined(WIN32) && defined(_MSC_VER) #define inline __inline #endif #define SHA_DIGEST_LENGTH 20 #define TR_INET6_ADDRSTRLEN 46 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_benc; 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. */ const char* tr_getDefaultConfigDir( const char * 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. */ const char* 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" #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 "240" #define TR_DEFAULT_PEER_LIMIT_TORRENT_STR "60" #define TR_PREFS_KEY_ALT_SPEED_ENABLED "alt-speed-enabled" #define TR_PREFS_KEY_ALT_SPEED_UP_KBps "alt-speed-up" #define TR_PREFS_KEY_ALT_SPEED_DOWN_KBps "alt-speed-down" #define TR_PREFS_KEY_ALT_SPEED_TIME_BEGIN "alt-speed-time-begin" #define TR_PREFS_KEY_ALT_SPEED_TIME_ENABLED "alt-speed-time-enabled" #define TR_PREFS_KEY_ALT_SPEED_TIME_END "alt-speed-time-end" #define TR_PREFS_KEY_ALT_SPEED_TIME_DAY "alt-speed-time-day" #define TR_PREFS_KEY_BIND_ADDRESS_IPV4 "bind-address-ipv4" #define TR_PREFS_KEY_BIND_ADDRESS_IPV6 "bind-address-ipv6" #define TR_PREFS_KEY_BLOCKLIST_ENABLED "blocklist-enabled" #define TR_PREFS_KEY_BLOCKLIST_URL "blocklist-url" #define TR_PREFS_KEY_MAX_CACHE_SIZE_MB "cache-size-mb" #define TR_PREFS_KEY_DHT_ENABLED "dht-enabled" #define TR_PREFS_KEY_UTP_ENABLED "utp-enabled" #define TR_PREFS_KEY_LPD_ENABLED "lpd-enabled" #define TR_PREFS_KEY_DOWNLOAD_QUEUE_SIZE "download-queue-size" #define TR_PREFS_KEY_DOWNLOAD_QUEUE_ENABLED "download-queue-enabled" #define TR_PREFS_KEY_PREFETCH_ENABLED "prefetch-enabled" #define TR_PREFS_KEY_DOWNLOAD_DIR "download-dir" #define TR_PREFS_KEY_ENCRYPTION "encryption" #define TR_PREFS_KEY_IDLE_LIMIT "idle-seeding-limit" #define TR_PREFS_KEY_IDLE_LIMIT_ENABLED "idle-seeding-limit-enabled" #define TR_PREFS_KEY_INCOMPLETE_DIR "incomplete-dir" #define TR_PREFS_KEY_INCOMPLETE_DIR_ENABLED "incomplete-dir-enabled" #define TR_PREFS_KEY_MSGLEVEL "message-level" #define TR_PREFS_KEY_PEER_LIMIT_GLOBAL "peer-limit-global" #define TR_PREFS_KEY_PEER_LIMIT_TORRENT "peer-limit-per-torrent" #define TR_PREFS_KEY_PEER_PORT "peer-port" #define TR_PREFS_KEY_PEER_PORT_RANDOM_ON_START "peer-port-random-on-start" #define TR_PREFS_KEY_PEER_PORT_RANDOM_LOW "peer-port-random-low" #define TR_PREFS_KEY_PEER_PORT_RANDOM_HIGH "peer-port-random-high" #define TR_PREFS_KEY_PEER_SOCKET_TOS "peer-socket-tos" #define TR_PREFS_KEY_PEER_CONGESTION_ALGORITHM "peer-congestion-algorithm" #define TR_PREFS_KEY_PEX_ENABLED "pex-enabled" #define TR_PREFS_KEY_PORT_FORWARDING "port-forwarding-enabled" #define TR_PREFS_KEY_PREALLOCATION "preallocation" #define TR_PREFS_KEY_RATIO "ratio-limit" #define TR_PREFS_KEY_RATIO_ENABLED "ratio-limit-enabled" #define TR_PREFS_KEY_RENAME_PARTIAL_FILES "rename-partial-files" #define TR_PREFS_KEY_RPC_AUTH_REQUIRED "rpc-authentication-required" #define TR_PREFS_KEY_RPC_BIND_ADDRESS "rpc-bind-address" #define TR_PREFS_KEY_RPC_ENABLED "rpc-enabled" #define TR_PREFS_KEY_RPC_PASSWORD "rpc-password" #define TR_PREFS_KEY_RPC_PORT "rpc-port" #define TR_PREFS_KEY_RPC_USERNAME "rpc-username" #define TR_PREFS_KEY_RPC_URL "rpc-url" #define TR_PREFS_KEY_RPC_WHITELIST_ENABLED "rpc-whitelist-enabled" #define TR_PREFS_KEY_SCRAPE_PAUSED_TORRENTS "scrape-paused-torrents-enabled" #define TR_PREFS_KEY_SCRIPT_TORRENT_DONE_FILENAME "script-torrent-done-filename" #define TR_PREFS_KEY_SCRIPT_TORRENT_DONE_ENABLED "script-torrent-done-enabled" #define TR_PREFS_KEY_SEED_QUEUE_SIZE "seed-queue-size" #define TR_PREFS_KEY_SEED_QUEUE_ENABLED "seed-queue-enabled" #define TR_PREFS_KEY_RPC_WHITELIST "rpc-whitelist" #define TR_PREFS_KEY_QUEUE_STALLED_ENABLED "queue-stalled-enabled" #define TR_PREFS_KEY_QUEUE_STALLED_MINUTES "queue-stalled-minutes" #define TR_PREFS_KEY_DSPEED_KBps "speed-limit-down" #define TR_PREFS_KEY_DSPEED_ENABLED "speed-limit-down-enabled" #define TR_PREFS_KEY_USPEED_KBps "speed-limit-up" #define TR_PREFS_KEY_USPEED_ENABLED "speed-limit-up-enabled" #define TR_PREFS_KEY_UMASK "umask" #define TR_PREFS_KEY_UPLOAD_SLOTS_PER_TORRENT "upload-slots-per-torrent" #define TR_PREFS_KEY_START "start-added-torrents" #define TR_PREFS_KEY_TRASH_ORIGINAL "trash-original-torrent-files" /** * Add libtransmission's default settings to the benc dictionary. * * Example: * @code * tr_benc settings; * int64_t i; * * tr_bencInitDict( &settings, 0 ); * tr_sessionGetDefaultSettings( &settings ); * if( tr_bencDictFindInt( &settings, TR_PREFS_KEY_PEER_PORT, &i ) ) * fprintf( stderr, "the default peer port is %d\n", (int)i ); * tr_bencFree( &settings ); * @endcode * * @param initme pointer to a tr_benc dictionary * @see tr_sessionLoadSettings() * @see tr_sessionInit() * @see tr_getDefaultConfigDir() */ void tr_sessionGetDefaultSettings( struct tr_benc * dictionary ); /** * Add the session's current configuration settings to the benc dictionary. * * FIXME: this probably belongs in libtransmissionapp * * @param session * @param dictionary * @see tr_sessionGetDefaultSettings() */ void tr_sessionGetSettings( tr_session *, struct tr_benc * 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_benc * @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_benc * dictionary, const char * configDir, const char * 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 * @param dictionary * @see tr_sessionLoadSettings() */ void tr_sessionSaveSettings( tr_session * session, const char * configDir, const struct tr_benc * dictonary ); /** * @brief Initialize a libtransmission session. * * For example, this will instantiate a session with all the default values: * @code * tr_benc settings; * tr_session * session; * const char * configDir; * * tr_bencInitDict( &settings, 0 ); * tr_sessionGetDefaultSettings( &settings ); * configDir = tr_getDefaultConfigDir( "Transmission" ); * session = tr_sessionInit( "mac", configDir, true, &settings ); * * tr_bencFree( &settings ); * @endcode * * @param tag "gtk", "macosx", "daemon", etc... this is only for pre-1.30 resume files * @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( const char * tag, const char * configDir, bool messageQueueingEnabled, struct tr_benc * 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_benc * 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. */ const char * tr_sessionGetConfigDir( const tr_session * ); /** * @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, const char * 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(). */ const char * tr_sessionGetDownloadDir( const tr_session * session ); /** * @brief Get available disk space (in bytes) for the default download folder. * @return zero or positive integer on success, -1 in case of error. */ int64_t tr_sessionGetDownloadDirFreeSpace( const tr_session * session ); /** * @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( const tr_ctor * 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, const char * dir ); /** @brief get the per-session incomplete download folder */ const char* tr_sessionGetIncompleteDir( const tr_session * 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( const tr_session * 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( const tr_session * 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( const tr_session * 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( const tr_session * session ); /** * @brief Specify which base URL to use. * * @detail The RPC API is accessible under /rpc, the web interface under * /web. * * @see tr_sessionGetRPCUrl */ void tr_sessionSetRPCUrl( tr_session * session, const char * url ); /** * @brief Get the base URL. * @see tr_sessionInit() * @see tr_sessionSetRPCUrl */ const char* tr_sessionGetRPCUrl( const tr_session * 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, const char * 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 */ const char* tr_sessionGetRPCWhitelist( const tr_session * ); void tr_sessionSetRPCWhitelistEnabled( tr_session * session, bool isEnabled ); bool tr_sessionGetRPCWhitelistEnabled( const tr_session * session ); void tr_sessionSetRPCPassword( tr_session * session, const char * password ); void tr_sessionSetRPCUsername( tr_session * session, const char * username ); /** @brief get the password used to restrict RPC requests. @return the password string. @see tr_sessionInit() @see tr_sessionSetRPCPassword() */ const char* tr_sessionGetRPCPassword( const tr_session * session ); const char* tr_sessionGetRPCUsername( const tr_session * session ); void tr_sessionSetRPCPasswordEnabled( tr_session * session, bool isEnabled ); bool tr_sessionIsRPCPasswordEnabled( const tr_session * session ); const char* tr_sessionGetRPCBindAddress( const tr_session * 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( const tr_session * session, tr_session_stats * setme ); /** @brief Get cumulative bandwidth statistics for current and past sessions */ void tr_sessionGetCumulativeStats( const tr_session * 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( const tr_session * session ); bool tr_sessionIsDHTEnabled( const tr_session * session ); void tr_sessionSetDHTEnabled( tr_session * session, bool ); bool tr_sessionIsUTPEnabled( const tr_session * session ); void tr_sessionSetUTPEnabled( tr_session * session, bool ); bool tr_sessionIsLPDEnabled( const tr_session * session ); void tr_sessionSetLPDEnabled( tr_session * session, bool enabled ); void tr_sessionSetCacheLimit_MB( tr_session * session, int mb ); int tr_sessionGetCacheLimit_MB( const tr_session * 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( const tr_session * session ); void tr_sessionSetPeerPort( tr_session * session, tr_port port); tr_port tr_sessionGetPeerPort( const tr_session * 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( const tr_session * 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, int KBps ); int tr_sessionGetSpeedLimit_KBps ( const tr_session *, tr_direction ); void tr_sessionLimitSpeed ( tr_session *, tr_direction, bool ); bool tr_sessionIsSpeedLimited ( const tr_session *, tr_direction ); /*** **** Alternative speed limits that are used during scheduled times ***/ void tr_sessionSetAltSpeed_KBps ( tr_session *, tr_direction, int Bps ); int tr_sessionGetAltSpeed_KBps ( const tr_session *, tr_direction ); void tr_sessionUseAltSpeed ( tr_session *, bool ); bool tr_sessionUsesAltSpeed ( const tr_session * ); void tr_sessionUseAltSpeedTime ( tr_session *, bool ); bool tr_sessionUsesAltSpeedTime ( const tr_session * ); void tr_sessionSetAltSpeedBegin ( tr_session *, int minsSinceMidnight ); int tr_sessionGetAltSpeedBegin ( const tr_session * ); void tr_sessionSetAltSpeedEnd ( tr_session *, int minsSinceMidnight ); int tr_sessionGetAltSpeedEnd ( const tr_session * ); 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 ( const tr_session * ); 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( const tr_session * session, tr_direction dir, double * setme ); /*** **** ***/ double tr_sessionGetRawSpeed_KBps ( const tr_session *, tr_direction ); void tr_sessionSetRatioLimited ( tr_session *, bool isLimited ); bool tr_sessionIsRatioLimited ( const tr_session * ); void tr_sessionSetRatioLimit ( tr_session *, double desiredRatio ); double tr_sessionGetRatioLimit ( const tr_session * ); void tr_sessionSetIdleLimited ( tr_session *, bool isLimited ); bool tr_sessionIsIdleLimited ( const tr_session * ); void tr_sessionSetIdleLimit ( tr_session *, uint16_t idleMinutes ); uint16_t tr_sessionGetIdleLimit ( const tr_session * ); void tr_sessionSetPeerLimit( tr_session *, uint16_t maxGlobalPeers ); uint16_t tr_sessionGetPeerLimit( const tr_session * ); void tr_sessionSetPeerLimitPerTorrent( tr_session *, uint16_t maxPeers ); uint16_t tr_sessionGetPeerLimitPerTorrent( const tr_session * ); void tr_sessionSetPaused ( tr_session *, bool isPaused ); bool tr_sessionGetPaused ( const tr_session * ); void tr_sessionSetDeleteSource ( tr_session *, bool deleteSource ); bool tr_sessionGetDeleteSource ( const tr_session * ); tr_priority_t tr_torrentGetPriority( const tr_torrent * ); 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 ( const tr_torrent * ); /** @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 ( const tr_session *, 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 ( const tr_session *, 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( const tr_session * ); /** @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( const tr_session * ); /** **/ /** @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( const tr_session * ); void tr_sessionSetTorrentDoneScriptEnabled( tr_session *, bool isEnabled ); const char * tr_sessionGetTorrentDoneScript( const tr_session * ); void tr_sessionSetTorrentDoneScript( tr_session *, const char * scriptFilename ); /** @} */ /** *** **/ /*********************************************************************** ** Message Logging */ typedef enum { TR_MSG_ERR = 1, TR_MSG_INF = 2, TR_MSG_DBG = 3 } tr_msg_level; void tr_setMessageLevel( tr_msg_level ); typedef struct tr_msg_list { /* TR_MSG_ERR, TR_MSG_INF, or TR_MSG_DBG */ tr_msg_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 */ const char * file; /* linked list of messages */ struct tr_msg_list * next; } tr_msg_list; void tr_setMessageQueuing( bool isEnabled ); bool tr_getMessageQueuing( void ); tr_msg_list * tr_getQueuedMessages( void ); void tr_freeMessageList( tr_msg_list * 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, const char * filename ); int tr_blocklistGetRuleCount ( const tr_session * session ); bool tr_blocklistExists ( const tr_session * session ); bool tr_blocklistIsEnabled ( const tr_session * 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 *, const char * url ); const char * tr_blocklistGetURL ( const tr_session * ); /** @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; struct tr_benc; /** @brief Create a torrent constructor object used to instantiate a tr_torrent @param session 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( const tr_session * 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, const char * magnet ); /** @brief Set the constructor's metainfo from a raw benc already in memory */ int tr_ctorSetMetainfo( tr_ctor * ctor, const uint8_t * metainfo, size_t len ); /** @brief Set the constructor's metainfo from a local .torrent file */ int tr_ctorSetMetainfoFromFile( tr_ctor * ctor, const char * 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, const char * 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, const char * 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, const char * 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, const tr_file_index_t * 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, const tr_file_index_t * fileIndices, tr_file_index_t fileCount, bool wanted ); /** @brief Get this peer constructor's peer limit */ int tr_ctorGetPeerLimit( const tr_ctor * ctor, tr_ctorMode mode, uint16_t * setmeCount ); /** @brief Get the "isPaused" flag from this peer constructor */ int tr_ctorGetPaused( const tr_ctor * ctor, tr_ctorMode mode, bool * setmeIsPaused ); /** @brief Get the download path from this peer constructor */ int tr_ctorGetDownloadDir( const tr_ctor * ctor, tr_ctorMode mode, const char ** setmeDownloadDir ); /** @brief Get the incomplete directory from this peer constructor */ int tr_ctorGetIncompleteDir( const tr_ctor * ctor, const char ** setmeIncompleteDir ); /** @brief Get the metainfo from this peer constructor */ int tr_ctorGetMetainfo( const tr_ctor * ctor, const struct tr_benc ** setme ); /** @brief Get the "delete .torrent file" flag from this peer constructor */ int tr_ctorGetDeleteSource( const tr_ctor * ctor, bool * setmeDoDelete ); /** @brief Get the tr_session poiner from this peer constructor */ tr_session* tr_ctorGetSession( const tr_ctor * ctor ); /** @brief Get the .torrent file that this ctor's metainfo came from, or NULL if tr_ctorSetMetainfoFromFile() wasn't used */ const char* tr_ctorGetSourceFile( const tr_ctor * 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 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( const tr_ctor * ctor, tr_info * setme_info_or_NULL ); /** @brief free a metainfo @see tr_torrentParse */ void tr_metainfoFree( tr_info * inf ); /** Instantiate a single torrent. @return 0 on success, TR_EINVALID if the torrent couldn't be parsed, or TR_EDUPLICATE if there's already a matching torrent object. */ tr_torrent * tr_torrentNew( const tr_ctor * ctor, int * setmeError ); /** @} */ /*********************************************************************** *** *** TORRENTS **/ /** @addtogroup tr_torrent Torrents @{ */ /** @brief Frees memory allocated by tr_torrentNew(). Running torrents are stopped first. */ void tr_torrentFree( tr_torrent * torrent ); typedef int tr_fileFunc( const char * filename ); /** @brief Removes our .torrent and .resume files for this torrent, then calls tr_torrentFree(). */ 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 ); 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, const char * location, bool move_from_previous_location, volatile double * setme_progress, volatile int * setme_state ); uint64_t tr_torrentGetBytesLeftToAllocate( const tr_torrent * 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( const tr_torrent * torrent ); tr_torrent* tr_torrentFindFromId( tr_session * session, int id ); tr_torrent* tr_torrentFindFromHash( tr_session * session, const uint8_t * hash ); /** @brief Convenience function similar to tr_torrentFindFromHash() */ tr_torrent* tr_torrentFindFromMagnetLink( tr_session * session, const char * link ); /** * @return this torrent's name. */ const char* tr_torrentName( const tr_torrent * ); /** * @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_freed() 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( const tr_torrent * tor, tr_file_index_t fileNo ); /*** **** Torrent speed limits **** ***/ void tr_torrentSetSpeedLimit_KBps ( tr_torrent *, tr_direction, int KBps ); int tr_torrentGetSpeedLimit_KBps ( const tr_torrent *, tr_direction ); void tr_torrentUseSpeedLimit ( tr_torrent *, tr_direction, bool ); bool tr_torrentUsesSpeedLimit ( const tr_torrent *, tr_direction ); void tr_torrentUseSessionLimits ( tr_torrent *, bool ); bool tr_torrentUsesSessionLimits ( const tr_torrent * ); /**** ***** 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( const tr_torrent * tor ); void tr_torrentSetRatioLimit( tr_torrent * tor, double ratio ); double tr_torrentGetRatioLimit( const tr_torrent * tor ); bool tr_torrentGetSeedRatio( const tr_torrent *, 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 ( const tr_torrent * tor ); void tr_torrentSetIdleLimit( tr_torrent * tor, uint16_t idleMinutes ); uint16_t tr_torrentGetIdleLimit( const tr_torrent * tor ); bool tr_torrentGetSeedIdle( const tr_torrent *, uint16_t * minutes ); /**** ***** Peer Limits ****/ void tr_torrentSetPeerLimit( tr_torrent * tor, uint16_t peerLimit ); uint16_t tr_torrentGetPeerLimit( const tr_torrent * 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, const tr_file_index_t * 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( const tr_torrent * torrent ); /** @brief Set a batch of files to be downloaded or not. */ void tr_torrentSetFileDLs( tr_torrent * torrent, const tr_file_index_t * files, tr_file_index_t fileCount, bool do_download ); const tr_info * tr_torrentInfo( const tr_torrent * 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, const char * path ); const char * tr_torrentGetDownloadDir( const tr_torrent * 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. */ const char * tr_torrentGetCurrentDir( const tr_torrent * tor ); /** * Returns a newly-allocated string with a magnet link of the torrent. * Use tr_free() to free the string when done. */ char* tr_torrentGetMagnetLink( const tr_torrent * 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, const tr_tracker_info * 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( const tr_torrent * 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( const tr_torrent * 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( const tr_torrent * 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( const tr_torrent * torrent ); typedef struct tr_file_stat { uint64_t bytesCompleted; float progress; } tr_file_stat; tr_file_stat * tr_torrentFiles( const tr_torrent * 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( const tr_torrent * torrent, int8_t * tab, int size ); void tr_torrentAmountFinished( const tr_torrent * torrent, float * tab, int size ); void tr_torrentVerify( tr_torrent * torrent ); /*********************************************************************** * 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 */ 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 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; int trackerCount; 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 isMultifile; }; static inline bool tr_torrentHasMetadata( const tr_torrent * 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. */ const tr_stat * 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. */ const tr_stat * tr_torrentStatCached( tr_torrent * torrent ); /** @deprecated */ void tr_torrentSetAddedDate( tr_torrent * torrent, time_t addedDate ); /** @deprecated */ void tr_torrentSetActivityDate( tr_torrent * torrent, time_t activityDate ); /** @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; } /** @brief Sanity checker to test that a bool is true or false */ static inline bool tr_isBool( bool b ) { return b==1 || b==0; } #ifdef __cplusplus } #endif #endif