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transmission/libtransmission/transmission.h
Jordan Lee ae89e4683d add user_data (void *) to the queue callback
2011-08-03 23:40:51 +00:00

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/******************************************************************************
* $Id$
*
* 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 <inttypes.h> /* uintN_t */
#include <time.h> /* time_t */
#if !defined(__cplusplus)
#ifdef HAVE_STDBOOL_H
#include <stdbool.h>
#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_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 <url>/rpc, the web interface under
* <url>/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_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 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
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