downloadsocket.cpp

wisock应用队列思想实现单线程多任务http下载的类. 实现多文件同时下载,断点续传,流量统计等.

#include ".\downloadsocket.h"

CDownloadSocket::CDownloadSocket(void)
{
}

CDownloadSocket::~CDownloadSocket(void)
{
	closesocket(m_socket);
	printf("closesocket\n");
}

bool CDownloadSocket::CheckDll()
{
    WSADATA WsaData;
	if(WSAStartup(MAKEWORD(2,2),&WsaData) < 0)
		return false;
}
bool CDownloadSocket::IniSocket()
{
	if( CheckDll() == false)
		return false;

}

bool CDownloadSocket::Connect( LPTSTR host,UINT port ) 
{
	m_port = port;
	_tcscpy( m_lpszHost, host );

	WSADATA ws; 
	struct sockaddr_in addr; 
	int iResult; 

	m_socket = socket(AF_INET,SOCK_STREAM,0); 

	addr.sin_family = AF_INET; 
	addr.sin_port = htons(m_port); 
	addr.sin_addr.s_addr = inet_addr(m_lpszHost); 
	iResult=connect(m_socket,(struct sockaddr *) &addr, sizeof(addr)); 
	if(SOCKET_ERROR == iResult) 
	{ 
		// 连接失败 
		WSACleanup(); 
		return false; 
	} 
	else
	{ 
		// 连接成功 
		return true;
	}
}

int CDownloadSocket::Send(LPTSTR buf)
{
	return send(m_socket, buf,strlen(buf),0) ;
}

int CDownloadSocket::Recv(LPTSTR buf ,int len)
{
	return recv(m_socket,buf, len ,0);
}

void CDownloadSocket::SetUrl(LPCTSTR lpszUrl)
{
	_tcscpy( m_lpszUrl, lpszUrl );
}