2007-09-20 16:32:01 +00:00
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/*
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2014-01-19 01:09:44 +00:00
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* This file Copyright (C) 2007-2014 Mnemosyne LLC
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2007-09-20 16:32:01 +00:00
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*
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2014-01-21 03:10:30 +00:00
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* It may be used under the GNU GPL versions 2 or 3
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2014-01-19 01:09:44 +00:00
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* or any future license endorsed by Mnemosyne LLC.
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2007-09-20 16:32:01 +00:00
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*
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* $Id$
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*/
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2008-11-24 20:17:36 +00:00
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#ifndef __TRANSMISSION__
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#error only libtransmission should #include this header.
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#endif
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2007-09-20 16:32:01 +00:00
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#ifndef TR_PEER_IO_H
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#define TR_PEER_IO_H
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/**
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***
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**/
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2009-01-02 17:46:22 +00:00
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#include <assert.h>
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#include "transmission.h"
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2009-01-02 19:56:06 +00:00
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#include "bandwidth.h"
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2011-04-17 05:22:50 +00:00
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#include "crypto.h"
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2009-01-02 17:46:22 +00:00
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#include "net.h" /* tr_address */
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2012-12-05 17:29:46 +00:00
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#include "utils.h" /* tr_time () */
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2009-01-02 17:46:22 +00:00
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2007-09-20 16:32:01 +00:00
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struct evbuffer;
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2008-11-24 04:21:23 +00:00
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struct tr_bandwidth;
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2011-04-10 05:21:51 +00:00
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struct tr_datatype;
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2009-01-02 17:46:22 +00:00
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struct tr_peerIo;
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2009-05-29 19:17:12 +00:00
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/**
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* @addtogroup networked_io Networked IO
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* @{
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*/
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2009-01-02 17:46:22 +00:00
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typedef enum
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{
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READ_NOW,
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READ_LATER,
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READ_ERR
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}
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ReadState;
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2011-03-31 16:41:52 +00:00
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typedef enum
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{
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/* these match the values in MSE's crypto_select */
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2012-12-05 17:29:46 +00:00
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PEER_ENCRYPTION_NONE = (1 << 0),
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PEER_ENCRYPTION_RC4 = (1 << 1)
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2011-03-31 16:41:52 +00:00
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}
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tr_encryption_type;
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2012-12-05 17:29:46 +00:00
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typedef ReadState (*tr_can_read_cb)(struct tr_peerIo * io,
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2013-01-30 18:00:03 +00:00
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void * user_data,
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size_t * setme_piece_byte_count);
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2009-01-02 17:46:22 +00:00
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2013-01-30 18:00:03 +00:00
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typedef void (*tr_did_write_cb)(struct tr_peerIo * io,
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size_t bytesWritten,
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bool wasPieceData,
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void * userData);
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2009-01-02 17:46:22 +00:00
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2013-01-30 18:00:03 +00:00
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typedef void (*tr_net_error_cb)(struct tr_peerIo * io,
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short what,
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void * userData);
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2009-01-02 17:46:22 +00:00
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typedef struct tr_peerIo
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{
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2011-03-22 15:19:54 +00:00
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bool isEncrypted;
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bool isIncoming;
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bool peerIdIsSet;
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bool extendedProtocolSupported;
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bool fastExtensionSupported;
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bool dhtSupported;
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bool utpSupported;
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2009-01-02 17:46:22 +00:00
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2009-04-18 23:17:30 +00:00
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tr_priority_t priority;
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2010-06-30 16:40:19 +00:00
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short int pendingEvents;
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2009-01-24 14:49:35 +00:00
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2009-01-02 19:56:06 +00:00
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int magicNumber;
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2009-01-02 17:46:22 +00:00
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2011-03-31 16:41:52 +00:00
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tr_encryption_type encryption_type;
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2011-03-22 15:19:54 +00:00
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bool isSeed;
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2009-01-05 04:27:54 +00:00
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2009-01-02 19:56:06 +00:00
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tr_port port;
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int socket;
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2013-02-04 16:23:33 +00:00
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struct UTPSocket * utp_socket;
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2009-01-02 17:46:22 +00:00
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2009-01-19 14:05:43 +00:00
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int refCount;
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2009-01-05 04:27:54 +00:00
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2009-01-02 19:56:06 +00:00
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uint8_t peerId[SHA_DIGEST_LENGTH];
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time_t timeCreated;
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2009-01-02 17:46:22 +00:00
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2009-01-02 19:56:06 +00:00
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tr_session * session;
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2009-01-02 17:46:22 +00:00
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2009-01-02 19:56:06 +00:00
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tr_address addr;
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2009-01-02 17:46:22 +00:00
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2009-01-02 19:56:06 +00:00
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tr_can_read_cb canRead;
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tr_did_write_cb didWrite;
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tr_net_error_cb gotError;
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void * userData;
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2009-01-02 17:46:22 +00:00
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2009-01-02 19:56:06 +00:00
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struct tr_bandwidth bandwidth;
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2011-04-17 05:22:50 +00:00
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tr_crypto crypto;
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2009-01-02 17:46:22 +00:00
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2009-01-02 19:56:06 +00:00
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struct evbuffer * inbuf;
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struct evbuffer * outbuf;
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2011-04-10 05:21:51 +00:00
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struct tr_datatype * outbuf_datatypes;
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2009-01-02 17:46:22 +00:00
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2010-12-20 02:07:51 +00:00
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struct event * event_read;
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struct event * event_write;
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2009-01-02 17:46:22 +00:00
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}
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tr_peerIo;
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2007-09-20 16:32:01 +00:00
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/**
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***
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**/
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2012-12-05 17:29:46 +00:00
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tr_peerIo* tr_peerIoNewOutgoing (tr_session * session,
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2009-01-02 19:56:06 +00:00
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struct tr_bandwidth * parent,
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2008-12-02 03:41:58 +00:00
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const struct tr_address * addr,
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tr_port port,
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2009-12-02 05:30:46 +00:00
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const uint8_t * torrentHash,
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2011-03-22 15:19:54 +00:00
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bool isSeed,
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2012-12-05 17:29:46 +00:00
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bool utp);
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2011-02-18 00:36:19 +00:00
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2008-11-17 04:00:57 +00:00
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2012-12-05 17:29:46 +00:00
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tr_peerIo* tr_peerIoNewIncoming (tr_session * session,
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2009-01-02 19:56:06 +00:00
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struct tr_bandwidth * parent,
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2008-12-02 03:41:58 +00:00
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const struct tr_address * addr,
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tr_port port,
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2011-02-18 00:23:51 +00:00
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int socket,
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2012-12-05 17:29:46 +00:00
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struct UTPSocket * utp_socket);
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2007-09-20 16:32:01 +00:00
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2013-02-04 16:23:33 +00:00
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void tr_peerIoRefImpl (const char * file,
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2009-01-24 17:20:07 +00:00
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int line,
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2012-12-05 17:29:46 +00:00
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tr_peerIo * io);
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2009-01-05 04:27:54 +00:00
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2012-12-05 17:29:46 +00:00
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#define tr_peerIoRef(io) tr_peerIoRefImpl (__FILE__, __LINE__, (io));
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2009-01-24 17:20:07 +00:00
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2013-02-04 16:23:33 +00:00
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void tr_peerIoUnrefImpl (const char * file,
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2009-01-24 17:20:07 +00:00
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int line,
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2012-12-05 17:29:46 +00:00
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tr_peerIo * io);
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2009-01-24 17:20:07 +00:00
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2012-12-05 17:29:46 +00:00
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#define tr_peerIoUnref(io) tr_peerIoUnrefImpl (__FILE__, __LINE__, (io));
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2007-09-20 16:32:01 +00:00
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2011-03-15 18:11:31 +00:00
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#define PEER_IO_MAGIC_NUMBER 206745
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2008-12-21 18:15:00 +00:00
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2011-03-22 15:19:54 +00:00
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static inline bool
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2012-12-05 17:29:46 +00:00
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tr_isPeerIo (const tr_peerIo * io)
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2011-03-15 18:11:31 +00:00
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{
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2012-12-05 17:29:46 +00:00
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return (io != NULL)
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&& (io->magicNumber == PEER_IO_MAGIC_NUMBER)
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&& (io->refCount >= 0)
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&& (tr_isBandwidth (&io->bandwidth))
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&& (tr_address_is_valid (&io->addr));
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2011-03-15 18:11:31 +00:00
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}
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2007-09-20 16:32:01 +00:00
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/**
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***
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**/
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2012-12-05 17:29:46 +00:00
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static inline void tr_peerIoEnableFEXT (tr_peerIo * io, bool flag)
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2009-01-02 19:56:06 +00:00
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{
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2010-05-20 15:30:18 +00:00
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io->fastExtensionSupported = flag;
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2009-01-02 19:56:06 +00:00
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}
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2012-12-05 17:29:46 +00:00
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static inline bool tr_peerIoSupportsFEXT (const tr_peerIo * io)
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2009-01-02 19:56:06 +00:00
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{
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return io->fastExtensionSupported;
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}
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2008-12-02 17:10:54 +00:00
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2012-12-05 17:29:46 +00:00
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static inline void tr_peerIoEnableLTEP (tr_peerIo * io, bool flag)
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2010-05-20 15:30:18 +00:00
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{
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io->extendedProtocolSupported = flag;
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}
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2012-12-05 17:29:46 +00:00
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static inline bool tr_peerIoSupportsLTEP (const tr_peerIo * io)
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2010-05-20 15:30:18 +00:00
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{
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return io->extendedProtocolSupported;
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}
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2009-05-19 18:38:26 +00:00
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2012-12-05 17:29:46 +00:00
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static inline void tr_peerIoEnableDHT (tr_peerIo * io, bool flag)
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2010-05-20 15:30:18 +00:00
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{
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io->dhtSupported = flag;
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}
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2012-12-05 17:29:46 +00:00
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static inline bool tr_peerIoSupportsDHT (const tr_peerIo * io)
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2009-05-19 18:38:26 +00:00
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{
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return io->dhtSupported;
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}
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2012-12-05 17:29:46 +00:00
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static inline bool tr_peerIoSupportsUTP (const tr_peerIo * io)
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2011-02-18 00:41:06 +00:00
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{
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2012-12-06 15:04:52 +00:00
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return io->utpSupported;
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2011-02-18 00:41:06 +00:00
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}
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2007-09-20 16:32:01 +00:00
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/**
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***
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**/
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2012-12-05 17:29:46 +00:00
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static inline tr_session* tr_peerIoGetSession (tr_peerIo * io)
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2009-01-02 19:56:06 +00:00
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{
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2012-12-05 17:29:46 +00:00
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assert (tr_isPeerIo (io));
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assert (io->session);
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2009-01-02 19:56:06 +00:00
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return io->session;
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}
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2007-09-30 23:55:49 +00:00
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2012-12-05 17:29:46 +00:00
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const char* tr_peerIoAddrStr (const struct tr_address * addr,
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tr_port port);
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2007-09-20 16:32:01 +00:00
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2012-12-05 17:29:46 +00:00
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const char* tr_peerIoGetAddrStr (const tr_peerIo * io);
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2008-12-02 03:41:58 +00:00
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2012-12-05 17:29:46 +00:00
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const struct tr_address * tr_peerIoGetAddress (const tr_peerIo * io,
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tr_port * port);
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2007-09-20 16:32:01 +00:00
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2012-12-05 17:29:46 +00:00
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const uint8_t* tr_peerIoGetTorrentHash (tr_peerIo * io);
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2007-09-20 16:32:01 +00:00
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2014-11-30 19:38:47 +00:00
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bool tr_peerIoHasTorrentHash (const tr_peerIo * io);
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2007-09-20 16:32:01 +00:00
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2012-12-05 17:29:46 +00:00
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void tr_peerIoSetTorrentHash (tr_peerIo * io,
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const uint8_t * hash);
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2007-09-20 16:32:01 +00:00
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2012-12-05 17:29:46 +00:00
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int tr_peerIoReconnect (tr_peerIo * io);
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2007-09-20 16:32:01 +00:00
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2012-12-05 17:29:46 +00:00
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static inline bool tr_peerIoIsIncoming (const tr_peerIo * io)
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2009-01-02 19:56:06 +00:00
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{
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return io->isIncoming;
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}
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2008-01-11 02:09:20 +00:00
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2012-12-05 17:29:46 +00:00
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static inline int tr_peerIoGetAge (const tr_peerIo * io)
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2009-01-02 17:46:22 +00:00
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{
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2012-12-05 17:29:46 +00:00
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return tr_time () - io->timeCreated;
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2009-01-02 17:46:22 +00:00
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}
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2007-10-11 03:54:33 +00:00
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2007-09-20 16:32:01 +00:00
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/**
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***
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**/
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2012-12-05 17:29:46 +00:00
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void tr_peerIoSetPeersId (tr_peerIo * io,
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const uint8_t * peer_id);
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2007-09-20 16:32:01 +00:00
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2012-12-05 17:29:46 +00:00
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static inline const uint8_t* tr_peerIoGetPeersId (const tr_peerIo * io)
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2009-01-02 19:56:06 +00:00
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{
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2012-12-05 17:29:46 +00:00
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assert (tr_isPeerIo (io));
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assert (io->peerIdIsSet);
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2009-01-02 19:56:06 +00:00
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return io->peerId;
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}
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2007-09-20 16:32:01 +00:00
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/**
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***
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**/
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2013-01-30 18:00:03 +00:00
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void tr_peerIoSetIOFuncs (tr_peerIo * io,
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tr_can_read_cb readcb,
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tr_did_write_cb writecb,
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tr_net_error_cb errcb,
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void * user_data);
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2008-10-23 02:37:21 +00:00
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2013-01-30 18:00:03 +00:00
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void tr_peerIoClear (tr_peerIo * io);
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2009-01-05 18:20:47 +00:00
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2008-11-17 04:00:57 +00:00
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/**
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***
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**/
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2008-10-23 02:37:21 +00:00
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2012-12-05 17:29:46 +00:00
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void tr_peerIoWriteBytes (tr_peerIo * io,
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2013-01-30 18:00:03 +00:00
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const void * writeme,
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size_t writemeLen,
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bool isPieceData);
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2007-09-20 16:32:01 +00:00
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2012-12-05 17:29:46 +00:00
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void tr_peerIoWriteBuf (tr_peerIo * io,
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2013-01-30 18:00:03 +00:00
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struct evbuffer * buf,
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bool isPieceData);
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2007-09-20 16:32:01 +00:00
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/**
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***
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**/
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2012-12-05 17:29:46 +00:00
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static inline tr_crypto * tr_peerIoGetCrypto (tr_peerIo * io)
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2009-01-02 19:56:06 +00:00
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{
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2011-04-17 05:22:50 +00:00
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return &io->crypto;
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2009-01-02 19:56:06 +00:00
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}
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2007-09-20 16:32:01 +00:00
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2012-12-05 17:29:46 +00:00
|
|
|
void tr_peerIoSetEncryption (tr_peerIo * io, tr_encryption_type encryption_type);
|
2008-12-16 22:08:17 +00:00
|
|
|
|
2011-03-22 15:19:54 +00:00
|
|
|
static inline bool
|
2012-12-05 17:29:46 +00:00
|
|
|
tr_peerIoIsEncrypted (const tr_peerIo * io)
|
2009-01-02 19:56:06 +00:00
|
|
|
{
|
2012-12-05 17:29:46 +00:00
|
|
|
return (io != NULL) && (io->encryption_type == PEER_ENCRYPTION_RC4);
|
2009-01-02 19:56:06 +00:00
|
|
|
}
|
2008-12-16 22:08:17 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
void evbuffer_add_uint8 (struct evbuffer * outbuf, uint8_t byte);
|
|
|
|
void evbuffer_add_uint16 (struct evbuffer * outbuf, uint16_t hs);
|
|
|
|
void evbuffer_add_uint32 (struct evbuffer * outbuf, uint32_t hl);
|
|
|
|
void evbuffer_add_uint64 (struct evbuffer * outbuf, uint64_t hll);
|
2011-03-13 00:18:11 +00:00
|
|
|
|
|
|
|
static inline void
|
2012-12-05 17:29:46 +00:00
|
|
|
evbuffer_add_hton_16 (struct evbuffer * buf, uint16_t val)
|
2011-03-13 00:18:11 +00:00
|
|
|
{
|
2012-12-05 17:29:46 +00:00
|
|
|
evbuffer_add_uint16 (buf, val);
|
2011-03-13 00:18:11 +00:00
|
|
|
}
|
|
|
|
static inline void
|
2012-12-05 17:29:46 +00:00
|
|
|
evbuffer_add_hton_32 (struct evbuffer * buf, uint32_t val)
|
2011-03-13 00:18:11 +00:00
|
|
|
{
|
2012-12-05 17:29:46 +00:00
|
|
|
evbuffer_add_uint32 (buf, val);
|
2011-03-13 00:18:11 +00:00
|
|
|
}
|
|
|
|
static inline void
|
2012-12-05 17:29:46 +00:00
|
|
|
evbuffer_add_hton_64 (struct evbuffer * buf, uint64_t val)
|
2011-03-13 00:18:11 +00:00
|
|
|
{
|
2012-12-05 17:29:46 +00:00
|
|
|
evbuffer_add_uint64 (buf, val);
|
2011-03-13 00:18:11 +00:00
|
|
|
}
|
2007-09-20 16:32:01 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
void tr_peerIoReadBytesToBuf (tr_peerIo * io,
|
2011-04-04 04:45:41 +00:00
|
|
|
struct evbuffer * inbuf,
|
|
|
|
struct evbuffer * outbuf,
|
2012-12-05 17:29:46 +00:00
|
|
|
size_t byteCount);
|
2011-04-04 04:45:41 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
void tr_peerIoReadBytes (tr_peerIo * io,
|
2009-01-22 14:32:29 +00:00
|
|
|
struct evbuffer * inbuf,
|
|
|
|
void * bytes,
|
2012-12-05 17:29:46 +00:00
|
|
|
size_t byteCount);
|
2007-09-26 14:42:03 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
static inline void tr_peerIoReadUint8 (tr_peerIo * io,
|
2009-01-22 14:32:29 +00:00
|
|
|
struct evbuffer * inbuf,
|
2012-12-05 17:29:46 +00:00
|
|
|
uint8_t * setme)
|
2009-01-02 17:46:22 +00:00
|
|
|
{
|
2012-12-05 17:29:46 +00:00
|
|
|
tr_peerIoReadBytes (io, inbuf, setme, sizeof (uint8_t));
|
2009-01-02 17:46:22 +00:00
|
|
|
}
|
2007-09-20 16:32:01 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
void tr_peerIoReadUint16 (tr_peerIo * io,
|
2010-10-11 15:41:27 +00:00
|
|
|
struct evbuffer * inbuf,
|
2012-12-05 17:29:46 +00:00
|
|
|
uint16_t * setme);
|
2007-09-20 16:32:01 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
void tr_peerIoReadUint32 (tr_peerIo * io,
|
2010-10-11 15:41:27 +00:00
|
|
|
struct evbuffer * inbuf,
|
2012-12-05 17:29:46 +00:00
|
|
|
uint32_t * setme);
|
2007-09-20 16:32:01 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
void tr_peerIoDrain (tr_peerIo * io,
|
2009-01-22 14:32:29 +00:00
|
|
|
struct evbuffer * inbuf,
|
2012-12-05 17:29:46 +00:00
|
|
|
size_t byteCount);
|
2008-12-16 22:08:17 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
***
|
|
|
|
**/
|
2007-09-26 14:42:03 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
size_t tr_peerIoGetWriteBufferSpace (const tr_peerIo * io, uint64_t now);
|
2007-09-20 16:32:01 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
static inline void tr_peerIoSetParent (tr_peerIo * io,
|
|
|
|
struct tr_bandwidth * parent)
|
2009-01-02 19:56:06 +00:00
|
|
|
{
|
2012-12-05 17:29:46 +00:00
|
|
|
assert (tr_isPeerIo (io));
|
2009-01-02 19:56:06 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
tr_bandwidthSetParent (&io->bandwidth, parent);
|
2009-01-02 19:56:06 +00:00
|
|
|
}
|
2007-09-20 16:32:01 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
void tr_peerIoBandwidthUsed (tr_peerIo * io,
|
2008-12-16 22:08:17 +00:00
|
|
|
tr_direction direction,
|
|
|
|
size_t byteCount,
|
2012-12-05 17:29:46 +00:00
|
|
|
int isPieceData);
|
2007-09-20 16:32:01 +00:00
|
|
|
|
2011-03-22 15:19:54 +00:00
|
|
|
static inline bool
|
2012-12-05 17:29:46 +00:00
|
|
|
tr_peerIoHasBandwidthLeft (const tr_peerIo * io, tr_direction dir)
|
2009-01-02 19:56:06 +00:00
|
|
|
{
|
2012-12-05 17:29:46 +00:00
|
|
|
return tr_bandwidthClamp (&io->bandwidth, dir, 1024) > 0;
|
2009-01-02 19:56:06 +00:00
|
|
|
}
|
|
|
|
|
2010-07-03 00:25:22 +00:00
|
|
|
static inline unsigned int
|
2012-12-05 17:29:46 +00:00
|
|
|
tr_peerIoGetPieceSpeed_Bps (const tr_peerIo * io, uint64_t now, tr_direction dir)
|
2009-01-02 19:56:06 +00:00
|
|
|
{
|
2012-12-05 17:29:46 +00:00
|
|
|
return tr_bandwidthGetPieceSpeed_Bps (&io->bandwidth, now, dir);
|
2009-01-02 19:56:06 +00:00
|
|
|
}
|
2009-01-02 17:46:22 +00:00
|
|
|
|
2008-09-17 19:44:24 +00:00
|
|
|
/**
|
|
|
|
***
|
|
|
|
**/
|
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
void tr_peerIoSetEnabled (tr_peerIo * io,
|
2008-12-20 22:19:34 +00:00
|
|
|
tr_direction dir,
|
2012-12-05 17:29:46 +00:00
|
|
|
bool isEnabled);
|
2009-08-12 14:40:32 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
int tr_peerIoFlush (tr_peerIo * io,
|
2008-12-16 22:08:17 +00:00
|
|
|
tr_direction dir,
|
2012-12-05 17:29:46 +00:00
|
|
|
size_t byteLimit);
|
2008-09-17 19:44:24 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
int tr_peerIoFlushOutgoingProtocolMsgs (tr_peerIo * io);
|
2009-04-21 16:18:51 +00:00
|
|
|
|
2009-01-02 17:46:22 +00:00
|
|
|
/**
|
|
|
|
***
|
|
|
|
**/
|
2008-09-17 19:44:24 +00:00
|
|
|
|
2012-12-05 17:29:46 +00:00
|
|
|
static inline struct evbuffer * tr_peerIoGetReadBuffer (tr_peerIo * io)
|
2009-01-02 17:46:22 +00:00
|
|
|
{
|
|
|
|
return io->inbuf;
|
|
|
|
}
|
2008-11-25 21:35:17 +00:00
|
|
|
|
2009-05-29 19:17:12 +00:00
|
|
|
/* @} */
|
2007-09-20 16:32:01 +00:00
|
|
|
|
|
|
|
#endif
|