nsport.h

这是一个著名的应用层组播中间件的源码

//Copyright (c) 2004, Charles Killian, Adolfo Rodriguez, Dejan Kostic, Sooraj Bhat, and Amin Vahdat
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in
//     the documentation and/or other materials provided with the
//     distribution.
//   * Neither the names of Duke University nor The University of
//     California, San Diego, nor the names of its contributors
//     may be used to endorse or promote products derived from
//     this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
//AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
//IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
//DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
//FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
//DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
//SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
//OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
//USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef NSPORTH
#define NSPORTH

#define NSPORT_HACK_MODELNET

#define NSPORT_MULTI_PORT 0x1500
#define NSPORT_PORT 0x1501
/*  #define NSPORT_MAX_UDP_SIZE 1012 */
#define NSPORT_MAX_UDP_SIZE 8192  
/*  #define NSPORT_MAX_UDP_SIZE 2048  */

// This nsport code supports compressing the address by allowing the high-order
// 16 bits of the IP address to be used as UDP port number.  Hence, you can
// run more than one instance of this code on a given machine. 
//normal environments
/*  #define NSPORT_COMPRESS_ADDRESS 0x9803 */

//ModelNet "10.1.x.y"
/*  #define NSPORT_COMPRESS_ADDRESS 0x0a01 */
#define NSPORT_DEMASK_PORT 0x0000FFFF
#define NSPORT_MASK_PORT 0xFFFF0000
#define NSPORT_DEBUG 0

#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <pthread.h>

#include "macedon.h"

//void *nsport_input(void *);
//void nsport_readbuf(unsigned char *, int, int, MACEDON_Agent * );
//void nsport_demux(Packet *, MACEDON_Agent *);

void load_protocols();
typedef MACEDON_Agent* (*init_function)();
extern init_function* init_array;

//extern int hdr_cmn::offset_;
//extern int hdr_ip::offset_;

int convert_address(int, int);
int extract_port(int);
double sure_sleep( double amount);

#endif