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89 lines
2.5 KiB
89 lines
2.5 KiB
/* This software was written by Dirk Engling <erdgeist@erdgeist.org> |
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It is considered beerware. Prost. Skol. Cheers or whatever. */ |
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#ifndef __TRACKERLOGIC_H__ |
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#define __TRACKERLOGIC_H__ |
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#include <sys/types.h> |
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#include <sys/time.h> |
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/* Should be called BYTE, WORD, DWORD - but some OSs already have that and there's no #iftypedef */ |
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/* They mark memory used as data instead of integer or human readable string - |
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they should be cast before used as integer/text */ |
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typedef unsigned char ot_byte; |
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typedef unsigned short ot_word; |
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typedef unsigned long ot_dword; |
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typedef ot_byte ot_hash[20]; |
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typedef ot_dword ot_ip; |
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typedef time_t ot_time; |
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/* We maintain a list of 256 pointers to sorted list of ot_torrent structs |
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Sort key is, of course, its hash */ |
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/* This list points to 9 pools of peers each grouped in five-minute-intervals |
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thus achieving a timeout of 2700s or 45 minutes |
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These pools are sorted by its binary content */ |
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#define OT_POOLS_COUNT 9 |
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#define OT_POOLS_TIMEOUT 300 |
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#define NOW (time(NULL)/OT_POOLS_TIMEOUT) |
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#define OT_VECTOR_MIN_MEMBERS 128 |
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#define OT_VECTOR_GROW_RATIO 2 |
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#define OT_VECTOR_SHRINK_THRESH 3 |
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#define OT_VECTOR_SHRINK_RATIO 2 |
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typedef struct { |
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void *data; |
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size_t size; |
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size_t space; |
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} ot_vector; |
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typedef struct { |
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ot_byte data[8]; |
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} ot_peer; |
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static const ot_byte PEER_FLAG_SEEDING = 0x80; |
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static const ot_byte PEER_FLAG_COMPLETED = 0x40; |
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static const ot_byte PEER_FLAG_STOPPED = 0x20; |
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#define OT_SETIP( peer, ip ) memmove((peer),(ip),4); |
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#define OT_SETPORT( peer, port ) memmove(((ot_byte*)peer)+4,(port),2); |
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#define OT_FLAG(peer) (((ot_byte*)(peer))[6]) |
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#define OT_PEER_COMPARE_SIZE ((size_t)6) |
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#define OT_HASH_COMPARE_SIZE (sizeof(ot_hash)) |
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typedef struct { |
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ot_time base; |
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size_t seed_count[ OT_POOLS_COUNT ]; |
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unsigned int downloaded; |
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ot_vector peers[ OT_POOLS_COUNT ]; |
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} ot_peerlist; |
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typedef struct { |
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ot_hash hash; |
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ot_peerlist *peer_list; |
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} ot_torrent; |
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/* |
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Exported functions |
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*/ |
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int init_logic( char *serverdir ); |
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void deinit_logic( ); |
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#ifdef WANT_CLOSED_TRACKER |
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extern int g_closedtracker; |
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#endif |
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#ifdef WANT_BLACKLIST |
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extern int g_check_blacklist; |
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#endif |
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ot_torrent *add_peer_to_torrent( ot_hash *hash, ot_peer *peer ); |
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size_t return_peers_for_torrent( ot_torrent *torrent, unsigned int amount, char *reply ); |
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size_t return_scrape_for_torrent( ot_hash *hash, char *reply ); |
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size_t return_stats_for_tracker( char *reply ); |
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void remove_peer_from_torrent( ot_hash *hash, ot_peer *peer ); |
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void cleanup_torrents( void ); |
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#endif
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