VC2010，TCP文件传输

#include <stdio.h> #include <WinSock2.h> #pragma comment(lib,"ws2_32.lib") void MyDelay(ULONG microsecond) { LARGE_INTEGER frequency; if(!QueryPerformanceFrequency(&frequency)) return ; ULONG WaitTime = frequency.QuadPart*microsecond/1000000; LARGE_INTEGER BeginTime; LARGE_INTEGER TemporaryTime; QueryPerformanceCounter(&BeginTime); TemporaryTime = BeginTime; while((TemporaryTime.QuadPart - BeginTime.QuadPart) < WaitTime) { if(QueryPerformanceCounter(&TemporaryTime) == 0) break; } } int tcp_unblocked_client(char* ServerIpAddress,char* FileName,int Microsecond) { WSADATA WsaData = {0}; if(WSAStartup(MAKEWORD(2,2),&WsaData) != 0) return -1; SOCKET SocketClient = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); if(SocketClient == INVALID_SOCKET) { WSACleanup(); return -2; } SOCKADDR_IN AddrServer = {0}; AddrServer.sin_family = AF_INET; AddrServer.sin_addr.S_un.S_addr = inet_addr(ServerIpAddress); AddrServer.sin_port = htons(20158); if(connect(SocketClient,(SOCKADDR* )&AddrServer,sizeof(AddrServer)) == SOCKET_ERROR) { closesocket(SocketClient); WSACleanup(); return -3; } FILE* fr = fopen(FileName,"rb"); if(fr == NULL) { closesocket(SocketClient); WSACleanup(); return -4; } char SendBuf[1024] = ""; int ReturnValue = 0; while(!feof(fr)) { fread(SendBuf,1,1024,fr); ReturnValue = send(SocketClient,SendBuf,1024,0); if(ReturnValue == SOCKET_ERROR) { closesocket(SocketClient); WSACleanup(); return -5; } printf("数据发送中……\n"); MyDelay(Microsecond); } fclose(fr); ReturnValue = send(SocketClient,"β",strlen("β")+1,0); if(ReturnValue == SOCKET_ERROR) { printf("数据发送结束！\n"); closesocket(SocketClient); WSACleanup(); return -5; } closesocket(SocketClient); WSACleanup(); return 0; } int main() { char ServerIpAddress[32] = ""; printf("请输入服务器IP地址："); scanf("%s",&ServerIpAddress); char FileName[32] = ""; printf("请输入文件名称："); scanf("%s",&FileName); int Microsecond = 0; printf("请输入睡眠时间："); scanf("%d",&Microsecond); tcp_unblocked_client(ServerIpAddress,FileName,Microsecond); system("PAUSE"); return 0; }