Question

CSocket执行Create时异常是怎么回事

Answer 1

初始化
BOOL CxxApp::InitInstance()
{
//初始化socket
if (!AfxSocketInit())
{
AfxMessageBox(IDP_SOCKETS_INIT_FAILED);
return FALSE;
}
...

包含CSocket的结构
struct TcpParam
{
CString strIp;
int port;
CxxDlg* pDlg;
CSocket sock;
};
static TcpParam *g_Tcp = new TcpParam[2];

主线程启动分线程，接收Tcp数据
g_Tcp[0].strIp.Format("192.168.9.11");
g_Tcp[0].pDlg = this;
g_Tcp[0].port = 5000;
AfxBeginThread(GetMsgTcp, &g_Tcp[0]);

g_Tcp[1].strIp.Format("192.168.9.12");
g_Tcp[1].pDlg = this;
g_Tcp[1].port = 5000;
AfxBeginThread(GetMsgTcp, &g_Tcp[1]);

GetMsgTcp线程
AfxSocketInit();
pTcp->sock.Create();
if (!pTcp->sock.Connect((LPCTSTR)pTcp->strIp, pTcp->port))
...

GetMsgTcp线程有时候会在运行到Create的时候
让程序出现异常