简单select

  1 #include <iostream>
  2 using namespace std;
  3
  4 #include <WinSock2.h>
  5 #pragma comment(lib, "ws2_32.lib")
  6
  7 #include "incl/pthread.h"
  8 #pragma comment(lib, "pthreadVCE2.lib")
  9
 10 class SockIp
 11 {
 12 public:
 13 SockIp(SOCKET sock, SOCKADDR_IN addr)
 14 {
 15 mSock = sock;
 16 mAddr = addr;
 17 }
 18
 19 SOCKET getSock()
 20 {
 21 return mSock;
 22 }
 23
 24 SOCKADDR_IN getAddr()
 25 {
 26 return mAddr;
 27 }
 28
 29 private:
 30 SOCKET mSock;
 31 SOCKADDR_IN mAddr;
 32 };
 33
 34 void* RecvThread(void* p)
 35 {
 36 //SOCKET skClient = *(SOCKET*)p;
 37 SockIp *si = (SockIp*)p;
 38 SOCKET skClient = si->getSock();
 39 SOCKADDR_IN addr = si->getAddr();
 40 cout<<"conn IP:"<<inet_ntoa(addr.sin_addr)
 41 <<",PORT:"<<ntohs(addr.sin_port)<<endl;
 42
 43
 44
 45 char buf[1024];
 46 while (true)
 47 {
 48 int ret = recv(skClient, buf, 1024, 0);
 49 if (ret == -1)
 50 {
 51 break;
 52 }
 53 buf[ret] = ‘\0‘;
 54 cout<<ret<<","<<buf<<endl;
 55 }
 56 closesocket(skClient);
 57 cout<<"disconn IP:"<<inet_ntoa(addr.sin_addr)
 58 <<",PORT:"<<ntohs(addr.sin_port)<<endl;
 59
 60 return NULL;
 61 };
 62
 63
 64 int main()
 65 {
 66 //1.init
 67 WSADATA wsa;
 68 if (WSAStartup(MAKEWORD(2,2), &wsa))
 69 {
 70 cout<<"1"<<endl;
 71 }
 72
 73 //2.socket
 74 SOCKET skListen = socket(AF_INET, SOCK_STREAM, 0);
 75
 76 //3.bind
 77 SOCKADDR_IN addr;
 78 addr.sin_family = AF_INET;
 79 addr.sin_port = htons(8888);
 80 addr.sin_addr.s_addr = htonl(INADDR_ANY);
 81 bind(skListen, (SOCKADDR*)&addr, sizeof(addr));
 82
 83 //4.listen
 84 listen(skListen, 5);
 85
 86
 87 //a.select+thread
 88 /*
 89 fd_set fdset;
 90 while(true)
 91 {
 92 FD_ZERO(&fdset);
 93 FD_SET(skListen, &fdset);
 94
 95 int num = select(0, &fdset, 0, 0, 0);
 96 if (num > 0)
 97 {
 98 //read 1.accept 2.recv
 99 if(FD_ISSET(skListen, &fdset))
100 {
101 //accept
102 SOCKADDR_IN accptAddr;
103 int len = sizeof(accptAddr);
104 SOCKET skClient = accept(skListen, (SOCKADDR*)&accptAddr, &len);
105
106 SockIp *si = new SockIp(skClient, accptAddr);
107 pthread_t trd;
108 pthread_create(&trd, 0, RecvThread, si);
109 }
110 }
111 }
112 */
113
114 //b.select
115
116 fd_set fdset;
117 FD_ZERO(&fdset);
118 FD_SET(skListen, &fdset);
119 while(true)
120 {
121
122 fd_set fdRead = fdset;
123 int num = select(0, &fdRead, 0, 0, 0);
124 if (num > 0)
125 {
126 for (unsigned int i=0; i<fdset.fd_count; i++)
127 {
128 if (FD_ISSET(fdset.fd_array[i], &fdRead))
129 {
130 SOCKADDR_IN acceptAddr;
131 int len = sizeof(acceptAddr);
132 //accept
133 if(fdset.fd_array[i] == skListen)
134 {
135 if (fdset.fd_count < FD_SETSIZE)
136 {
137 SOCKET skClient = accept(skListen, (SOCKADDR*)&acceptAddr, &len);
138 cout<<"conn IP:"<<inet_ntoa(acceptAddr.sin_addr)
139 <<",PORT:"<<ntohs(acceptAddr.sin_port)<<endl;
140
141 FD_SET(skClient, &fdset);
142 }
143 }
144 else//recv
145 {
146 char buf[1024];
147 SOCKET skCur = fdset.fd_array[i];
148 int ir = recv(skCur, buf, 1024, 0);
149 if (ir == -1)
150 {
151 getpeername(skCur, (SOCKADDR*)&acceptAddr, &len);
152 cout<<"diss conn IP:"<<inet_ntoa(acceptAddr.sin_addr)
153 <<",PORT:"<<ntohs(acceptAddr.sin_port)<<endl;
154
155 closesocket(skCur);
156 FD_CLR(skCur, &fdset);
157 }
158 else if (ir == 0)
159 {
160 cout<<"0:disconnect"<<endl;
161
162 closesocket(skCur);
163 FD_CLR(skCur, &fdset);
164 }
165 else
166 {
167 buf[ir]=‘\0‘;
168 cout<<buf<<endl;
169 }
170
171 }
172 }
173 }
174 }
175 }
176
177 system("pause");
178 return 0;
179 }