Question

我的代码在控制台应用程序中运行良好。现在我尝试使用wxDev将其嵌入GUI。顺序是：

virtual char* start()=0;
virtual char* version()=0;
virtual char* creat()=0;
virtual char* bin()=0;
virtual char* lis()=0;
virtual char* acc()=0;

从0到4，所有功能都运行良好，当acc()接受函数被调用时，它不会响应。我的代码：

#include <winsock2.h>
#include <winsock.h>
int inn=100;
char error[]={":::::I M HERE::::::"};
char chaa[]={"Inside LIKE FUNCTION.\n"};
char st[]={"Starting...\n"};
char ve[]={"Compatable Verstion.\n"};
char cr[]={"Socket Created.\n"};
char bi[]={"Binding Done.\n"};
char li[]={"Listeng..........\n"};
char ac[]={"Connected..........\n"};
int WSAStartup(WORD wVersionRequested, LPWSADATA lpWSAData);
SOCKET socket(int af, int type, int protocol);
int connect(SOCKET s, const struct sockaddr *name, int namelen);
int bind(SOCKET s, const struct sockaddr *name, int namelen);
int listen(SOCKET s, int backlog);

class Server 
{
public:
SOCKET sockh;
SOCKET socka;
WSADATA wsadata;
sockaddr_in sockAddr, client;
public:

char* like(){return chaa;}
int kiss(){return inn++;}
virtual char* start()=0;
virtual char* version()=0;
virtual char* creat()=0;
virtual char* bin()=0;
virtual char* lis()=0;
//virtual char* acc()=0; 
};

class startup: public Server
{
public:
char* start(){
if(WSAStartup(MAKEWORD(2,0), &wsadata)==0)
    return st; 
}
};
class ver:public startup{
public:
    char* version(){
        if(LOBYTE(wsadata.wVersion)>=2)
            return ve;
        } 
};
class created: public ver   {
public:
    char* creat(){
        if(socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)!=INVALID_SOCKET)
        return cr;
        }
};
class binded: public created{
public:
// Bind socket to port 80
    char* bin()
    {
//        sockaddr_in sockAddr;
sockAddr.sin_family = AF_INET;
sockAddr.sin_port = htons(7777);
sockAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
if (bind(sockh, (sockaddr*)(&sockAddr), sizeof(sockAddr))!=0)
        return bi;
        } 
};
class listenn: public binded
    {
  public:
    char* lis(){
        if(listen(sockh, SOMAXCONN)!=0)
            {
                     return li;                  
                        }
            }
 };
 class accep: public listenn{
public:
char* acc(){
int siz=sizeof(client);
socka=accept(sockh,reinterpret_cast<sockaddr*>(&sockAddr),&siz);
if(socka!=INVALID_SOCKET)
return ac;
else return error;
}
};

我也试过避免在同一个班级中返回陈述。

SOCKET sockh;
SOCKET socka;
WSADATA wsadata;
sockaddr_in sockAddr, client;

if(WSAStartup(MAKEWORD(2,0), &wsadata)==0)
{
 if(LOBYTE(wsadata.wVersion)>=2)
 {
  if(socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)!=INVALID_SOCKET)
  {

sockAddr.sin_family = AF_INET;
sockAddr.sin_port = htons(7777);
sockAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
if (bind(sockh, (sockaddr*)(&sockAddr), sizeof(sockAddr))!=0)        
    {
           if(listen(sockh, SOMAXCONN)!=0)
            {
                //waiting for incoming connection
              int siz=sizeof(client);
                socka=accept(sockh,reinterpret_cast<sockaddr*>     (&sockAddr),&siz);
                    if(socka!=INVALID_SOCKET)
                    {
                        return "Connected...";
                        }
                }            
              }
        }
    }
}

Answer 1

您永远不会设置变量sockh。您应该将socket的返回值分配给它：

if((sockh = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) != INVALID_SOCKET)
   return cr;

此外，您无法正确检查返回值。 <{1}}和bind成功返回listen。

修改

因为它似乎难以理解，所以整个代码按预期工作：

0

顺便说一句，如果人们调查他们给予帮助的时间，应该尝试遵循他们的建议并接受所要求的帮助。

无法接受传入连接winsock2

1 个答案: