5 * Created by Victor Grishchenko on 3/9/09.
6 * Copyright 2009 Delft University of Technology. All rights reserved.
13 #include "compat/stdint.h"
15 #include "compat/unixio.h"
19 #include <arpa/inet.h>
20 #include <sys/select.h>
21 #include <sys/socket.h>
22 #include <netinet/in.h>
32 #include "compat/hirestimeofday.h"
38 #define TINT_HOUR ((tint)1000000*60*60)
39 #define TINT_MIN ((tint)1000000*60)
40 #define TINT_SEC ((tint)1000000)
41 #define TINT_MSEC ((tint)1000)
42 #define TINT_uSEC ((tint)1)
43 #define TINT_NEVER ((tint)0x7fffffffffffffffLL)
44 #define MAXDGRAMSZ 1400
46 #define INVALID_SOCKET -1
52 struct sockaddr_in addr;
53 static uint32_t LOCALHOST;
54 void init(uint32_t ipv4=0, uint16_t port=0) {
55 memset(&addr,0,sizeof(struct sockaddr_in));
56 addr.sin_family = AF_INET;
57 addr.sin_port = htons(port);
58 addr.sin_addr.s_addr = htonl(ipv4);
61 Address(const char* ip, uint16_t port) {
63 inet_aton(ip,&(addr.sin_addr));
65 Address(uint16_t port) {
68 Address(uint32_t ipv4addr, uint16_t port) {
71 Address(const struct sockaddr_in& address) : addr(address) {}
72 uint32_t ipv4 () const { return ntohl(addr.sin_addr.s_addr); }
73 uint16_t port () const { return ntohs(addr.sin_port); }
74 operator sockaddr_in () const {return addr;}
75 bool operator == (const Address& b) const {
76 return addr.sin_family==b.addr.sin_family &&
77 addr.sin_port==b.addr.sin_port &&
78 addr.sin_addr.s_addr==b.addr.sin_addr.s_addr;
80 std::string str () const {
82 sprintf(s,"%i.%i.%i.%i:%i",ipv4()>>24,(ipv4()>>16)&0xff,
83 (ipv4()>>8)&0xff,ipv4()&0xff,port());
84 return std::string(s);
86 bool operator != (const Address& b) const { return !(*this==b); }
92 uint8_t buf[MAXDGRAMSZ*2];
94 static SOCKET Bind(Address address);
95 static void Close(int port);
97 static char* TimeStr(tint time=0);
98 static SOCKET Wait (int sockcnt, SOCKET* sockets, tint usec=0);
99 static tint now, epoch;
100 static uint64_t dgrams_up, dgrams_down, bytes_up, bytes_down;
102 Datagram (SOCKET socket, const Address addr_) : addr(addr_), offset(0),
103 length(0), sock(socket) {}
104 Datagram (SOCKET socket) : offset(0), length(0), sock(socket) {
107 int space () const { return MAXDGRAMSZ-length; }
108 int size() const { return length-offset; }
109 std::string str() const { return std::string((char*)buf+offset,size()); }
110 const uint8_t* operator * () const { return buf+offset; }
112 int Push (const uint8_t* data, int l) { // scatter-gather one day
113 int toc = l<space() ? l : space();
114 memcpy(buf+length,data,toc);
118 int Pull (uint8_t** data, int l) {
119 int toc = l<size() ? l : size();
120 //memcpy(data,buf+offset,toc);
128 const Address& address() const { return addr; }
129 void Clear() { offset=length=0; }
131 void PushString (std::string str) {
132 Push((uint8_t*)str.c_str(),str.size());
134 void Push8 (uint8_t b) {
137 void Push16 (uint16_t w) {
138 *(uint16_t*)(buf+length) = htons(w);
141 void Push32 (uint32_t i) {
142 *(uint32_t*)(buf+length) = htonl(i);
145 void Push64 (uint64_t l) {
146 *(uint32_t*)(buf+length) = htonl((uint32_t)(l>>32));
147 *(uint32_t*)(buf+length+4) = htonl((uint32_t)(l&0xffffffff));
150 void PushHash (const Sha1Hash& hash) {
151 Push(hash.bits, Sha1Hash::SIZE);
155 if (size()<1) return 0;
156 return buf[offset++];
159 if (size()<2) return 0;
161 return ntohs(*(uint16_t*)(buf+offset-2));
164 if (size()<4) return 0;
165 uint32_t i = ntohl(*(uint32_t*)(buf+offset));
170 if (size()<8) return 0;
171 uint64_t l = ntohl(*(uint32_t*)(buf+offset));
173 l |= ntohl(*(uint32_t*)(buf+offset+4));
177 Sha1Hash PullHash() {
178 if (size()<Sha1Hash::SIZE) return Sha1Hash::ZERO;
179 offset += Sha1Hash::SIZE;
180 return Sha1Hash(false,(char*)buf+offset-Sha1Hash::SIZE);
182 //std::string to_string () const ;
186 std::string sock2str (struct sockaddr_in addr);
187 #define dprintf(...) printf(__VA_ARGS__)
188 #define eprintf(...) fprintf(stderr,__VA_ARGS__)