211 lines
8.4 KiB
C
211 lines
8.4 KiB
C
/******************************************************************************
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* Copyright (c) 2005 Eric Petit
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*****************************************************************************/
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#ifndef TR_TRANSMISSION_H
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#define TR_TRANSMISSION_H 1
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#include <inttypes.h>
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#define SHA_DIGEST_LENGTH 20
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#define MAX_PATH_LENGTH 1024
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#define TR_MAX_TORRENT_COUNT 50
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/***********************************************************************
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* tr_init
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***********************************************************************
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* Initializes a libtransmission instance. Returns a obscure handle to
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* be passed to all functions below.
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**********************************************************************/
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typedef struct tr_handle_s tr_handle_t;
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tr_handle_t * tr_init();
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/***********************************************************************
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* tr_setBindPort
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***********************************************************************
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* Sets a "start" port: everytime we start a torrent, we try to bind
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* this port, then the next one and so on until we are successful.
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**********************************************************************/
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void tr_setBindPort( tr_handle_t *, int );
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/***********************************************************************
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* tr_setUploadLimit
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***********************************************************************
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* Sets the total upload rate limit in KB/s
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**********************************************************************/
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void tr_setUploadLimit( tr_handle_t *, int );
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/***********************************************************************
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* tr_torrentRates
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***********************************************************************
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* Gets the total download and upload rates
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**********************************************************************/
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void tr_torrentRates( tr_handle_t *, float *, float * );
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/***********************************************************************
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* tr_torrentInit
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***********************************************************************
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* Opens and parses torrent file at 'path'. If the file exists and is a
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* valid torrent file, returns 0 and adds it to the list of torrents
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* (but doesn't start it). Returns a non-zero value otherwise.
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**********************************************************************/
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int tr_torrentInit( tr_handle_t *, const char * path );
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/***********************************************************************
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* tr_torrentScrape
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***********************************************************************
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* Asks the tracker for the count of seeders and leechers. Returns 0
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* and fills 's' and 'l' if successful. Otherwise returns 1 if the
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* tracker doesn't support the scrape protocol, is unreachable or
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* replied with some error. tr_torrentScrape may block up to 20 seconds
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* before returning.
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**********************************************************************/
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int tr_torrentScrape( tr_handle_t *, int, int * s, int * l );
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/***********************************************************************
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* tr_torrentStart
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***********************************************************************
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* Starts downloading. The download is launched in a seperate thread,
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* therefore tr_torrentStart returns immediately.
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**********************************************************************/
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void tr_torrentSetFolder( tr_handle_t *, int, const char * );
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char * tr_torrentGetFolder( tr_handle_t *, int );
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void tr_torrentStart( tr_handle_t *, int );
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/***********************************************************************
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* tr_torrentStop
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***********************************************************************
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* Stops downloading and notices the tracker that we are leaving. The
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* thread keeps running while doing so.
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* The thread will eventually be joined, either:
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* - by tr_torrentStat when the tracker has been successfully noticed,
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* - by tr_torrentStat if the tracker could not be noticed within 60s,
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* - by tr_torrentClose if you choose to remove the torrent without
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* waiting any further.
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**********************************************************************/
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void tr_torrentStop( tr_handle_t *, int );
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/***********************************************************************
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* tr_torrentStat
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***********************************************************************
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* Allocates an array of tr_stat_t structures, containing information
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* about the current status of all open torrents (see the contents
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* of tr_stat_s below). Returns the count of open torrents and sets
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* (*s) to the address of the array, or NULL if no torrent is open.
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* In the former case, the array belongs to the caller who is
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* responsible of freeing it.
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* The interface should call this function every 0.5 second or so in
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* order to update itself.
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**********************************************************************/
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typedef struct tr_stat_s tr_stat_t;
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int tr_torrentCount( tr_handle_t * h );
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int tr_torrentStat( tr_handle_t *, tr_stat_t ** s );
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/***********************************************************************
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* tr_torrentClose
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***********************************************************************
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* Frees memory allocated by tr_torrentInit. If the torrent was running,
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* you must call tr_torrentStop() before closing it.
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**********************************************************************/
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void tr_torrentClose( tr_handle_t *, int );
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/***********************************************************************
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* tr_close
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***********************************************************************
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* Frees memory allocated by tr_init.
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**********************************************************************/
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void tr_close( tr_handle_t * );
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/***********************************************************************
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* tr_stat_s
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**********************************************************************/
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typedef struct tr_file_s
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{
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uint64_t length; /* Length of the file, in bytes */
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char name[MAX_PATH_LENGTH]; /* Path to the file */
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}
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tr_file_t;
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typedef struct tr_info_s
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{
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/* Path to torrent */
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char torrent[MAX_PATH_LENGTH];
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/* General info */
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uint8_t hash[SHA_DIGEST_LENGTH];
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char name[MAX_PATH_LENGTH];
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/* Tracker info */
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char trackerAddress[256];
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int trackerPort;
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char trackerAnnounce[MAX_PATH_LENGTH];
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/* Pieces info */
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int pieceSize;
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int pieceCount;
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uint64_t totalSize;
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uint8_t * pieces;
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/* Files info */
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int fileCount;
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tr_file_t * files;
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}
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tr_info_t;
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struct tr_stat_s
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{
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tr_info_t info;
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#define TR_STATUS_CHECK 0x001 /* Checking files */
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#define TR_STATUS_DOWNLOAD 0x002 /* Downloading */
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#define TR_STATUS_SEED 0x004 /* Seeding */
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#define TR_STATUS_STOPPING 0x008 /* Sending 'stopped' to the tracker */
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#define TR_STATUS_STOPPED 0x010 /* Sent 'stopped' but thread still
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running (for internal use only) */
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#define TR_STATUS_PAUSE 0x020 /* Paused */
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#define TR_TRACKER_ERROR 0x100
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int status;
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char error[128];
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float progress;
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float rateDownload;
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float rateUpload;
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int eta;
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int peersTotal;
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int peersUploading;
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int peersDownloading;
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char pieces[120];
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uint64_t downloaded;
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uint64_t uploaded;
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char * folder;
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};
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#ifdef __TRANSMISSION__
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# include "internal.h"
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#endif
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#endif
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