/****************************************************************************** * $Id$ * * Copyright (c) 2005-2006 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. *****************************************************************************/ #ifndef TR_TRANSMISSION_H #define TR_TRANSMISSION_H 1 #ifdef __cplusplus extern "C" { #endif #include "version.h" #include #ifndef PRIu64 # define PRIu64 "lld" #endif #define SHA_DIGEST_LENGTH 20 #ifdef __BEOS__ # include # define MAX_PATH_LENGTH B_FILE_NAME_LENGTH #else # define MAX_PATH_LENGTH 1024 #endif #define TR_DEFAULT_PORT 9090 #define TR_NOERROR 0 /*********************************************************************** * tr_init *********************************************************************** * Initializes a libtransmission instance. Returns a obscure handle to * be passed to all functions below. **********************************************************************/ typedef struct tr_handle_s tr_handle_t; tr_handle_t * tr_init(); /*********************************************************************** * tr_setErrorFunction *********************************************************************** * Sets the function used to display libtransmission errors. A NULL * function means to use the default, which simple prints the message * to stderr. The function's prototype should look like this: * void myErrFunc( const char * errstr ); **********************************************************************/ void tr_setErrorFunction( void (*func)( const char * ) ); /*********************************************************************** * tr_getPrefsDirectory *********************************************************************** * Returns the full path to a directory which can be used to store * preferences. The string belongs to libtransmission, do not free it. **********************************************************************/ char * tr_getPrefsDirectory(); /*********************************************************************** * tr_setBindPort *********************************************************************** * Sets a "start" port: everytime we start a torrent, we try to bind * this port, then the next one and so on until we are successful. **********************************************************************/ void tr_setBindPort( tr_handle_t *, int ); /*********************************************************************** * tr_setUploadLimit *********************************************************************** * Sets the total upload rate limit in KB/s **********************************************************************/ void tr_setUploadLimit( tr_handle_t *, int ); /*********************************************************************** * tr_setDownloadLimit *********************************************************************** * Sets the total download rate limit in KB/s **********************************************************************/ void tr_setDownloadLimit( tr_handle_t *, int ); /*********************************************************************** * tr_torrentCount *********************************************************************** * Returns the count of open torrents **********************************************************************/ int tr_torrentCount( tr_handle_t * h ); /*********************************************************************** * tr_torrentIterate *********************************************************************** * Iterates on open torrents **********************************************************************/ typedef struct tr_torrent_s tr_torrent_t; typedef void (*tr_callback_t) ( tr_torrent_t *, void * ); void tr_torrentIterate( tr_handle_t *, tr_callback_t, void * ); /*********************************************************************** * tr_torrentRates *********************************************************************** * Gets the total download and upload rates **********************************************************************/ void tr_torrentRates( tr_handle_t *, float *, float * ); /*********************************************************************** * tr_close *********************************************************************** * Frees memory allocated by tr_init. **********************************************************************/ void tr_close( tr_handle_t * ); /*********************************************************************** * tr_torrentInit *********************************************************************** * Opens and parses torrent file at 'path'. If the file exists and is a * valid torrent file, returns an handle and adds it to the list of * torrents (but doesn't start it). Returns NULL and sets *error * otherwise. If the TR_FSAVEPRIVATE flag is passed then a private copy * of the torrent file will be saved. **********************************************************************/ #define TR_EINVALID 1 #define TR_EUNSUPPORTED 2 #define TR_EDUPLICATE 3 #define TR_EOTHER 666 tr_torrent_t * tr_torrentInit( tr_handle_t *, const char * path, int flags, int * error ); /*********************************************************************** * tr_torrentInitSaved *********************************************************************** * Opens and parses a torrent file as with tr_torrentInit, only taking * the hash string of a saved torrent file instead of a filename. There * are currently no valid flags for this function. **********************************************************************/ tr_torrent_t * tr_torrentInitSaved( tr_handle_t *, const char * hashStr, int flags, int * error ); typedef struct tr_info_s tr_info_t; tr_info_t * tr_torrentInfo( tr_torrent_t * ); /*********************************************************************** * tr_torrentScrape *********************************************************************** * Asks the tracker for the count of seeders and leechers. Returns 0 * and fills 's' and 'l' if successful. Otherwise returns 1 if the * tracker doesn't support the scrape protocol, is unreachable or * replied with some error. tr_torrentScrape may block up to 20 seconds * before returning. **********************************************************************/ int tr_torrentScrape( tr_torrent_t *, int * s, int * l ); /*********************************************************************** * tr_torrentStart *********************************************************************** * Starts downloading. The download is launched in a seperate thread, * therefore tr_torrentStart returns immediately. **********************************************************************/ void tr_torrentSetFolder( tr_torrent_t *, const char * ); char * tr_torrentGetFolder( tr_torrent_t * ); void tr_torrentStart( tr_torrent_t * ); /*********************************************************************** * tr_torrentStop *********************************************************************** * Stops downloading and notices the tracker that we are leaving. The * thread keeps running while doing so. * The thread will eventually be joined, either: * - by tr_torrentStat when the tracker has been successfully noticed, * - by tr_torrentStat if the tracker could not be noticed within 60s, * - by tr_torrentClose if you choose to remove the torrent without * waiting any further. **********************************************************************/ void tr_torrentStop( tr_torrent_t * ); /*********************************************************************** * tr_getFinished *********************************************************************** * The first call after a torrent is completed returns 1. Returns 0 * in other cases. **********************************************************************/ int tr_getFinished( tr_torrent_t * ); /*********************************************************************** * tr_torrentStat *********************************************************************** * Returns a pointer to an tr_stat_t structure with updated information * on the torrent. The structure belongs to libtransmission (do not * free it) and is guaranteed to be unchanged until the next call to * tr_torrentStat. * The interface should call this function every second or so in order * to update itself. **********************************************************************/ typedef struct tr_stat_s tr_stat_t; tr_stat_t * tr_torrentStat( tr_torrent_t * ); /*********************************************************************** * tr_torrentAvailability *********************************************************************** * Use this to draw an advanced progress bar which is 'size' pixels * wide. Fills 'tab' which you must have allocated: each byte is set * to either -1 if we have the piece, otherwise it is set to the number * of connected peers who have the piece. **********************************************************************/ void tr_torrentAvailability( tr_torrent_t *, int8_t * tab, int size ); /*********************************************************************** * tr_torrentRemoveSaved *********************************************************************** * Removes the private saved copy of a torrent file for torrents which * the TR_FSAVEPRIVATE flag is set. **********************************************************************/ void tr_torrentRemoveSaved( tr_torrent_t * ); /*********************************************************************** * tr_torrentClose *********************************************************************** * Frees memory allocated by tr_torrentInit. If the torrent was running, * you must call tr_torrentStop() before closing it. **********************************************************************/ void tr_torrentClose( tr_handle_t *, tr_torrent_t * ); /*********************************************************************** * tr_info_s **********************************************************************/ typedef struct tr_file_s { uint64_t length; /* Length of the file, in bytes */ char name[MAX_PATH_LENGTH]; /* Path to the file */ } tr_file_t; struct tr_info_s { /* Path to torrent */ char torrent[MAX_PATH_LENGTH]; /* General info */ uint8_t hash[SHA_DIGEST_LENGTH]; char hashString[2*SHA_DIGEST_LENGTH+1]; char name[MAX_PATH_LENGTH]; /* Flags */ #define TR_FSAVEPRIVATE 0x01 /* save a private copy of the torrent */ int flags; /* Tracker info */ char trackerAddress[256]; int trackerPort; char trackerAnnounce[MAX_PATH_LENGTH]; /* Pieces info */ int pieceSize; int pieceCount; uint64_t totalSize; uint8_t * pieces; /* Files info */ int multifile; int fileCount; tr_file_t * files; }; /*********************************************************************** * tr_stat_s **********************************************************************/ typedef struct tr_peer_stat_s { char client[25]; int isDownloading; int isUploading; } tr_peer_stat_t; struct tr_stat_s { #define TR_STATUS_CHECK 0x001 /* Checking files */ #define TR_STATUS_DOWNLOAD 0x002 /* Downloading */ #define TR_STATUS_SEED 0x004 /* Seeding */ #define TR_STATUS_STOPPING 0x008 /* Sending 'stopped' to the tracker */ #define TR_STATUS_STOPPED 0x010 /* Sent 'stopped' but thread still running (for internal use only) */ #define TR_STATUS_PAUSE 0x020 /* Paused */ #define TR_STATUS_ACTIVE (TR_STATUS_CHECK|TR_STATUS_DOWNLOAD|TR_STATUS_SEED) #define TR_STATUS_INACTIVE (TR_STATUS_STOPPING|TR_STATUS_STOPPED|TR_STATUS_PAUSE) int status; #define TR_ETRACKER 1 #define TR_EINOUT 2 int error; char trackerError[128]; float progress; float rateDownload; float rateUpload; int eta; int peersTotal; tr_peer_stat_t * peers; int peersUploading; int peersDownloading; int seeders; int leechers; uint64_t downloaded; uint64_t uploaded; }; #ifdef __TRANSMISSION__ # include "internal.h" #endif #ifdef __cplusplus } #endif #endif