ZC:后来 没辙了,就尝试 VC(vs2017+Win10x64) 会不会也有此种情况,发现 确实 recvfrom会报错 GetLastError()返回 10054,从这里 找到了 真正的原因:由于 9989端口的数据 不可达,于是返回了 不可达的ICMP数据,然后 QUdpSocket错误的以为是 接收到了数据??(为啥此种情况 QUdpSocket connect的异常输出函数没反应?
10041 The specified port is the wrong type for this socket. 10042 Option unknown, or unsupported. 10043 The specified port is not supported. 10044 Socket type not supported in this address family. 10045 Socket is not a type that supports connection oriented service. 10047 Address Family is not...
10054 The connection is reset by remote side.连接被远程端重置 10055 No buffer space is available. 10056 Socket is already connected. 10057 Socket is not connected. 10058 Socket has been shut down. 10060 The attempt to connect timed out. 10061 Connection is forcefully rejected. 10201 Socket alre...
Only one usage of each socket address (protocol/network address/port) is normally permitted. WSAEADDRNOTAVAIL 10049 (0x2741) 要求位址在其內容中無效。 WSAENETDOWN 10050 (0x2742) 通訊端作業遇到停止的網路。 WSAENETUNREACH 10051 (0x2743) 通訊端作業嘗試連線到無法連線的網路。
Socket operation on nonsocket. An operation was attempted on something that is not a socket. Either the socket handle parameter did not reference a valid socket, or for select, a member of an fd_set was not valid. WSAEDESTADDRREQ 10039 Destination address required. A required address was om...
Windows Sockets only allows a single blocking operation—per- task or thread—to be outstanding, and if any other function call is made (whether or not it references that or any other socket) the function fails with the WSAEINPROGRESS...
This error is returned from operations on nonblocking sockets that cannot be completed immediately, for examplerecvwhen no data is queued to be read from the socket. It is a nonfatal error, and the operation should be retried later. It is normal for WSAEWOULDBLOCK to be reported as the resul...
nonsocket 上的套接字操作。 尝试对不是套接字的内容执行操作。 套接字句柄参数未引用有效的套接字,或者对于 select, fd_set 的成员无效。 WSAEDESTADDRREQ 10039 需要目标地址。 套接字上的操作中省略了所需的地址。 例如,如果使用远程地址ADDR_ANY调用 sendto ,则返回此错误。 WSAEMSGSIZE 10040 消息太长...
答:Windows Socket 是 Windows 下网络编程的一套规范,这套规范是在 Wndows 下得 到广泛应用、开放的、支持多种协议的网络编程接口。WinSock 是以一组 API 的方式提 供的,应用程序通过它来利用 TCP/IP 协议簇的通讯协议来进行通讯的。 74. 什么是套接字? 答:套接字的英文解释是 Socket,它是一个用来通讯的...
示例socketwin32winsock文章分类C/C++后端开发 为方便学习,本例没有采用MFC,直接使用Win32 API编程,GCC 4.5.2编译通过。 源代码参见附件。 代码解读 /*** * author : Dante Lee * email : bhlzlx@gmail.com ***/ #include <windows.h> #include <commctrl.h> #include...