非阻塞式TCP 服务器/客户端 基础
服务器端
------------------------------------------------------------------------
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#include
#pragma comment(lib, "ws2_32.lib")
#include
#define BUF_SIZE 64
int main()
{
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
SOCKET sockServer;
sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET == sockServer)
{
WSACleanup();
return -1;
}
int mode = 1;
int nRes = 0;
nRes = ioctlsocket(sockServer, FIONBIO, (u_long*)&mode);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
SOCKADDR_IN addrServ;
addrServ.sin_family = AF_INET;
addrServ.sin_port = htons(2345);
addrServ.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
nRes = bind(sockServer, (sockaddr*)&addrServ, sizeof(sockaddr));
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
nRes = listen(sockServer, 5);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
printf("服务器启动成功\n");
SOCKET sockClient;
SOCKADDR_IN addrClient;
int nLen = sizeof(SOCKADDR);
while (true)
{
sockClient = accept(sockServer, (sockaddr*)&addrClient, &nLen);
if (INVALID_SOCKET == sockClient)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(100);
continue;
}
else
{
closesocket(sockServer);
WSACleanup();
return -1;
}
}
break;
}
char chBuf[1024];
while (true)
{
nRes = recv(sockClient, chBuf, BUF_SIZE, 0);
if (SOCKET_ERROR == nRes)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
if (WSAETIMEDOUT == nRes || WSAENETDOWN == nRes)
{
closesocket(sockServer);
closesocket(sockClient);
WSACleanup();
return -1;
}
}
}
else
{
printf("客户端信息:%s\n", chBuf);
}
if (0 == strcmp(chBuf, "quit"))
{
exit(-1);
}
else
{
while (true)
{
ZeroMemory(chBuf, BUF_SIZE);
printf("---请输入:");
gets_s(chBuf);
nRes = send(sockClient, chBuf, strlen(chBuf)+2, 0);
if (SOCKET_ERROR == nRes)
{
nRes = GetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
closesocket(sockServer);
closesocket(sockClient);
WSACleanup();
return -1;
}
}
break;
}
}
}
return 0;
}
客户端
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#include
#pragma comment(lib, "ws2_32.lib")
#include
#include
#define BUF_SIZE 64
int main()
{
WSAData wsaData;
int nRes = 0;
nRes = WSAStartup(MAKEWORD(2, 2), &wsaData);
SOCKET sockServer;
sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET == sockServer)
{
WSACleanup();
return -1;
}
int nMode = 1;
nRes = ioctlsocket(sockServer, FIONBIO, (u_long*)&nMode);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
sockaddr_in addrServer;
addrServer.sin_family = AF_INET;
addrServer.sin_port = htons(2345);
addrServer.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
int nLen = sizeof(sockaddr);
while (true)
{
nRes = connect(sockServer, (sockaddr*)&addrServer, sizeof(sockaddr));
if (SOCKET_ERROR == nRes)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes || WSAEINVAL == nRes)
{
Sleep(300);
continue;
}
else if(WSAEISCONN == nRes)
{
break;
}
else
{
closesocket(sockServer);
WSACleanup();
return 0;
}
}
}
char chBuf[BUF_SIZE];
printf("和服务器连接成功\n");
while (true)
{
while (true)
{
ZeroMemory(chBuf, BUF_SIZE);
printf("---请输入:");
gets_s(chBuf);
nRes = send(sockServer, chBuf, strlen(chBuf)+2, 0);
if (SOCKET_ERROR == nRes)
{
nRes = GetLastError();
if (WSAEWOULDBLOCK == nRes )
{
Sleep(300);
continue;
}
else
{
closesocket(sockServer);
WSACleanup();
return 0;
}
}
break;
}
while (true)
{
nRes = recv(sockServer, chBuf, BUF_SIZE, 0);
if (SOCKET_ERROR == nRes)
{
nRes = GetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
closesocket(sockServer);
WSACleanup();
return 0;
}
}
printf("服务器信息:%s\n", chBuf);
break;
}
}
return 0;
}
C++11 多线程
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#include
#pragma comment(lib, "ws2_32.lib")
#include
#include
#define BUF_SIZE 64
#include
void connThread(SOCKET sock)
{
char chBuf[1024];
int nRes = 0;
while (true)
{
nRes = recv(sock, chBuf, BUF_SIZE, 0);
if (SOCKET_ERROR == nRes)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
if (WSAETIMEDOUT == nRes || WSAENETDOWN == nRes)
{
closesocket(sock);
return;
}
}
}
else
{
std::thread::id id = std::this_thread::get_id();
std::cout << "线程" << id;
printf("----客户端信息:%s\n", chBuf);
}
if (0 == strcmp(chBuf, "quit"))
{
exit(-1);
}
else
{
while (true)
{
ZeroMemory(chBuf, BUF_SIZE);
std::thread::id id = std::this_thread::get_id();
std::cout << "线程" << id;
printf("---请输入:");
gets_s(chBuf);
nRes = send(sock, chBuf, strlen(chBuf) + 2, 0);
if (SOCKET_ERROR == nRes)
{
nRes = GetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
closesocket(sock);
return;
}
}
break;
}
}
}
}
int main()
{
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
SOCKET sockServer;
sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET == sockServer)
{
WSACleanup();
return -1;
}
int mode = 1;
int nRes = 0;
nRes = ioctlsocket(sockServer, FIONBIO, (u_long*)&mode);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
SOCKADDR_IN addrServ;
addrServ.sin_family = AF_INET;
addrServ.sin_port = htons(2345);
addrServ.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
nRes = bind(sockServer, (sockaddr*)&addrServ, sizeof(sockaddr));
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
nRes = listen(sockServer, 5);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
printf("服务器启动成功\n");
SOCKET sockClient;
SOCKADDR_IN addrClient;
int nLen = sizeof(SOCKADDR);
while (true)
{
sockClient = accept(sockServer, (sockaddr*)&addrClient, &nLen);
if (INVALID_SOCKET == sockClient)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(100);
continue;
}
else
{
closesocket(sockServer);
WSACleanup();
return -1;
}
}
std::thread threadA(connThread, sockClient);
threadA.detach();
Sleep(600);
}
return 0;
}
服务器端
------------------------------------------------------------------------
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#include
#pragma comment(lib, "ws2_32.lib")
#include
#define BUF_SIZE 64
int main()
{
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
SOCKET sockServer;
sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET == sockServer)
{
WSACleanup();
return -1;
}
int mode = 1;
int nRes = 0;
nRes = ioctlsocket(sockServer, FIONBIO, (u_long*)&mode);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
SOCKADDR_IN addrServ;
addrServ.sin_family = AF_INET;
addrServ.sin_port = htons(2345);
addrServ.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
nRes = bind(sockServer, (sockaddr*)&addrServ, sizeof(sockaddr));
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
nRes = listen(sockServer, 5);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
printf("服务器启动成功\n");
SOCKET sockClient;
SOCKADDR_IN addrClient;
int nLen = sizeof(SOCKADDR);
while (true)
{
sockClient = accept(sockServer, (sockaddr*)&addrClient, &nLen);
if (INVALID_SOCKET == sockClient)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(100);
continue;
}
else
{
closesocket(sockServer);
WSACleanup();
return -1;
}
}
break;
}
char chBuf[1024];
while (true)
{
nRes = recv(sockClient, chBuf, BUF_SIZE, 0);
if (SOCKET_ERROR == nRes)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
if (WSAETIMEDOUT == nRes || WSAENETDOWN == nRes)
{
closesocket(sockServer);
closesocket(sockClient);
WSACleanup();
return -1;
}
}
}
else
{
printf("客户端信息:%s\n", chBuf);
}
if (0 == strcmp(chBuf, "quit"))
{
exit(-1);
}
else
{
while (true)
{
ZeroMemory(chBuf, BUF_SIZE);
printf("---请输入:");
gets_s(chBuf);
nRes = send(sockClient, chBuf, strlen(chBuf)+2, 0);
if (SOCKET_ERROR == nRes)
{
nRes = GetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
closesocket(sockServer);
closesocket(sockClient);
WSACleanup();
return -1;
}
}
break;
}
}
}
return 0;
}
客户端
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#include
#pragma comment(lib, "ws2_32.lib")
#include
#include
#define BUF_SIZE 64
int main()
{
WSAData wsaData;
int nRes = 0;
nRes = WSAStartup(MAKEWORD(2, 2), &wsaData);
SOCKET sockServer;
sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET == sockServer)
{
WSACleanup();
return -1;
}
int nMode = 1;
nRes = ioctlsocket(sockServer, FIONBIO, (u_long*)&nMode);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
sockaddr_in addrServer;
addrServer.sin_family = AF_INET;
addrServer.sin_port = htons(2345);
addrServer.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
int nLen = sizeof(sockaddr);
while (true)
{
nRes = connect(sockServer, (sockaddr*)&addrServer, sizeof(sockaddr));
if (SOCKET_ERROR == nRes)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes || WSAEINVAL == nRes)
{
Sleep(300);
continue;
}
else if(WSAEISCONN == nRes)
{
break;
}
else
{
closesocket(sockServer);
WSACleanup();
return 0;
}
}
}
char chBuf[BUF_SIZE];
printf("和服务器连接成功\n");
while (true)
{
while (true)
{
ZeroMemory(chBuf, BUF_SIZE);
printf("---请输入:");
gets_s(chBuf);
nRes = send(sockServer, chBuf, strlen(chBuf)+2, 0);
if (SOCKET_ERROR == nRes)
{
nRes = GetLastError();
if (WSAEWOULDBLOCK == nRes )
{
Sleep(300);
continue;
}
else
{
closesocket(sockServer);
WSACleanup();
return 0;
}
}
break;
}
while (true)
{
nRes = recv(sockServer, chBuf, BUF_SIZE, 0);
if (SOCKET_ERROR == nRes)
{
nRes = GetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
closesocket(sockServer);
WSACleanup();
return 0;
}
}
printf("服务器信息:%s\n", chBuf);
break;
}
}
return 0;
}
C++11 多线程
#define _WINSOCK_DEPRECATED_NO_WARNINGS
#include
#pragma comment(lib, "ws2_32.lib")
#include
#include
#define BUF_SIZE 64
#include
void connThread(SOCKET sock)
{
char chBuf[1024];
int nRes = 0;
while (true)
{
nRes = recv(sock, chBuf, BUF_SIZE, 0);
if (SOCKET_ERROR == nRes)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
if (WSAETIMEDOUT == nRes || WSAENETDOWN == nRes)
{
closesocket(sock);
return;
}
}
}
else
{
std::thread::id id = std::this_thread::get_id();
std::cout << "线程" << id;
printf("----客户端信息:%s\n", chBuf);
}
if (0 == strcmp(chBuf, "quit"))
{
exit(-1);
}
else
{
while (true)
{
ZeroMemory(chBuf, BUF_SIZE);
std::thread::id id = std::this_thread::get_id();
std::cout << "线程" << id;
printf("---请输入:");
gets_s(chBuf);
nRes = send(sock, chBuf, strlen(chBuf) + 2, 0);
if (SOCKET_ERROR == nRes)
{
nRes = GetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(300);
continue;
}
else
{
closesocket(sock);
return;
}
}
break;
}
}
}
}
int main()
{
WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
SOCKET sockServer;
sockServer = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET == sockServer)
{
WSACleanup();
return -1;
}
int mode = 1;
int nRes = 0;
nRes = ioctlsocket(sockServer, FIONBIO, (u_long*)&mode);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
SOCKADDR_IN addrServ;
addrServ.sin_family = AF_INET;
addrServ.sin_port = htons(2345);
addrServ.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
nRes = bind(sockServer, (sockaddr*)&addrServ, sizeof(sockaddr));
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
nRes = listen(sockServer, 5);
if (SOCKET_ERROR == nRes)
{
closesocket(sockServer);
WSACleanup();
return -1;
}
printf("服务器启动成功\n");
SOCKET sockClient;
SOCKADDR_IN addrClient;
int nLen = sizeof(SOCKADDR);
while (true)
{
sockClient = accept(sockServer, (sockaddr*)&addrClient, &nLen);
if (INVALID_SOCKET == sockClient)
{
nRes = WSAGetLastError();
if (WSAEWOULDBLOCK == nRes)
{
Sleep(100);
continue;
}
else
{
closesocket(sockServer);
WSACleanup();
return -1;
}
}
std::thread threadA(connThread, sockClient);
threadA.detach();
Sleep(600);
}
return 0;
}