-/* Copyright (c) 2012. The SimGrid Team.
+/* Copyright (c) 2012-2015. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
+
#ifndef BITTORRENT_PEER_H
#define BITTORRENT_PEER_H
-#include <msg/msg.h>
+#include <simgrid/msg.h>
#include <xbt/dict.h>
#include <xbt/dynar.h>
#include <xbt/RngStream.h>
* Peer data
*/
typedef struct s_peer {
- int id; //peer id
+ int id; //peer id
- int pieces; //number of pieces the peer has.
- char *bitfield; //list of pieces the peer has.
- char *bitfield_blocks; //list of blocks the peer has.
- short *pieces_count; //number of peers that have each piece.
+ int pieces; //number of pieces the peer has.
+ char *bitfield; //list of pieces the peer has.
+ char *bitfield_blocks; //list of blocks the peer has.
+ short *pieces_count; //number of peers that have each piece.
- xbt_dynar_t current_pieces; //current pieces the peer is downloading
+ xbt_dynar_t current_pieces; //current pieces the peer is downloading
- xbt_dict_t peers; //peers list
- xbt_dict_t active_peers; //active peers list
- int round; //current round for the chocking algortihm.
+ xbt_dict_t peers; //peers list
+ xbt_dict_t active_peers; //active peers list
+ int round; //current round for the chocking algorithm.
- char mailbox[MAILBOX_SIZE]; //peer mailbox.
- char mailbox_tracker[MAILBOX_SIZE]; //pair mailbox while communicating with the tracker.
- const char *hostname; //peer hostname
+ char mailbox[MAILBOX_SIZE]; //peer mailbox.
+ char mailbox_tracker[MAILBOX_SIZE]; //pair mailbox while communicating with the tracker.
+ const char *hostname; //peer hostname
- msg_task_t task_received; //current task being received
- msg_comm_t comm_received; //current comm
+ msg_task_t task_received; //current task being received
+ msg_comm_t comm_received; //current comm
- RngStream stream; //RngStream for
+ RngStream stream; //RngStream for
- double begin_receive_time; //time when the receiving communication has begun, useful for calculating host speed.
+ double begin_receive_time; //time when the receiving communication has begun, useful for calculating host speed.
- xbt_dynar_t pending_sends; // list of sends being delivered
} s_peer_t, *peer_t;
/**
int has_finished(char *bitfield);
-void handle_pending_sends(peer_t peer);
void handle_message(peer_t peer, msg_task_t task);
-void wait_for_pieces(peer_t peer, double deadline);
-
void update_pieces_count_from_bitfield(peer_t peer, char *bitfield);
-void update_current_piece(peer_t peer);
void update_choked_peers(peer_t peer);
void update_interested_after_receive(peer_t peer);
void update_bitfield_blocks(peer_t peer, int index, int block_index,
- int block_length);
+ int block_length);
int piece_complete(peer_t peer, int index);
int get_first_block(peer_t peer, int piece);
-void send_requests_to_peer(peer_t peer, connection_t remote_peer);
+int nb_interested_peers(peer_t peer);
+int is_interested(peer_t peer, connection_t remote_peer);
+int is_interested_and_free(peer_t peer, connection_t remote_peer);
+int in_current_pieces(peer_t peer, int piece);
+int partially_downloaded_piece(peer_t peer, connection_t remote_peer);
+
+void request_new_piece_to_peer(peer_t peer, connection_t remote_peer);
+void send_request_to_peer(peer_t peer, connection_t remote_peer, int piece);
+void remove_current_piece(peer_t peer, connection_t remote_peer,
+ int current_piece);
+
+void update_active_peers_set(peer_t peer, connection_t remote_peer);
+int select_piece_to_download(peer_t peer, connection_t remote_peer);
-void send_interested_to_peers(peer_t peer);
void send_handshake_all(peer_t peer);
void send_interested(peer_t peer, const char *mailbox);
void send_have(peer_t peer, int piece);
void send_request(peer_t peer, const char *mailbox, int piece,
- int block_index, int block_length);
-void send_piece(peer_t peer, const char *mailbox, int piece, int stalled,
- int block_index, int block_length);
+ int block_index, int block_length);
+void send_piece(peer_t peer, const char *mailbox, int piece,
+ int block_index, int block_length);
-int in_current_pieces(peer_t peer, int piece);
-#endif /* BITTORRENT_PEER_H */
+#endif /* BITTORRENT_PEER_H */
