opentracker/ot_vector.h

/* This software was written by Dirk Engling <erdgeist@erdgeist.org>
   It is considered beerware. Prost. Skol. Cheers or whatever.

   $id$ */

#ifndef OT_VECTOR_H__
#define OT_VECTOR_H__

/* These defines control vectors behaviour */
#define OT_VECTOR_MIN_MEMBERS   2
#define OT_VECTOR_GROW_RATIO    2
#define OT_VECTOR_SHRINK_THRESH 4
#define OT_VECTOR_SHRINK_RATIO  2

#define OT_PEER_BUCKET_MINCOUNT 512
#define OT_PEER_BUCKET_MAXCOUNT 256

typedef struct {
  void   *data;
  size_t  size;
  size_t  space;
} ot_vector;

void    *binary_search( const void * const key, const void * base, const size_t member_count, const size_t member_size,
                        size_t compare_size, int *exactmatch );
void    *vector_find_or_insert( ot_vector *vector, void *key, size_t member_size, size_t compare_size, int *exactmatch );
ot_peer *vector_find_or_insert_peer( ot_vector *vector, ot_peer const *peer, size_t peer_size, int *exactmatch );

int      vector_remove_peer( ot_vector *vector, ot_peer const *peer, size_t peer_size);
void     vector_remove_torrent( ot_vector *vector, ot_torrent *match );

/* For ot_clean.c */
void     vector_redistribute_buckets( ot_peerlist * peer_list, size_t peer_size );
void     vector_fixup_peers( ot_vector * vector, size_t peer_size );

#endif