chord.h

来自「基于DHT的对等协议」· C头文件 代码 · 共 83 行

#ifndef _CHORD_H_
#define _CHORD_H_
/*
 *
 * Copyright (C) 2000 Frans Kaashoek ([e-mail])
 * Copyright (C) 2001 Frans Kaashoek ([e-mail]) and 
 *                    Frank Dabek ([e-mail]).
 *
 *  Permission is hereby granted, free of charge, to any person obtaining
 *  a copy of this software and associated documentation files (the
 *  "Software"), to deal in the Software without restriction, including
 *  without limitation the rights to use, copy, modify, merge, publish,
 *  distribute, sublicense, and/or sell copies of the Software, and to
 *  permit persons to whom the Software is furnished to do so, subject to
 *  the following conditions:
 *
 *  The above copyright notice and this permission notice shall be
 *  included in all copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include <arpc.h>
#include <crypt.h>
#include <vec.h>
#include <qhash.h>

#ifdef DMALLOC
#include <dmalloc.h>
#endif

#include <id_utils.h>
#include <chord_prot.h>
#include <transport_prot.h>
#include <misc_utils.h>

typedef int cb_ID;

class chord;
class vnode;

class route_factory;
class chord;
class location;
class locationtable;
class rpc_manager;
class finger_table;
struct user_args;

typedef vec<ptr<location> > route;  
                  //route:  一系列 pointer to location
class route_iterator;
				  //route 迭代器


//这一系列的回调函数什么用???
typedef callback<bool, chord_node, int>::ptr cbtmo_t;
typedef callback<void,ptr<vnode>,chordstat>::ref cbjoin_t;
typedef callback<void,chord_node,chordstat>::ref cbchordID_t;
typedef callback<void,vec<chord_node>,chordstat>::ref cbchordIDlist_t;
typedef callback<void,vec<chord_node>,route,chordstat>::ref cbroute_t;
typedef callback<void, user_args *>::ref cbdispatch_t;
typedef callback<void,chordstat>::ptr cbping_t;
typedef callback<void, bool>::ref cbupcalldone_t;
typedef callback<void, int, void *, cbupcalldone_t>::ref cbupcall_t; 

typedef callback<ref<vnode>, ref<chord>, ref<rpc_manager>, ref<location> >::ref vnode_producer_t;
typedef callback<ptr<finger_table>, ptr<vnode>, ptr<locationtable> >::ref cb_fingertableproducer_t;
                     

//内联函数??forgot
inline const strbuf &
strbuf_cat (const strbuf &sb, chordstat status)         
{
  return rpc_print (sb, status, 0, NULL, NULL); 
  //???rpc_print 用于打印吗