windows python socket非阻塞 python socket阻塞和非阻塞 文章目录 1. 阻塞模式 四种阻塞API调用 2. 非阻塞模式 3. 优缺点对比 阻塞(blocking)、非阻塞(non-blocking): Windows套接字在阻塞和非阻塞两种模式下执行I/O操作。在阻塞模式下,在I/O操作完成前,执行的操作函数一直等候而不会立即返回,该函数所在的线程...
u_long mode = 1; if (ioctlsocket(clientSocket, FIONBIO, &mode) == SOCKET_ERROR) { std::cerr << "Failed to set non-blocking mode." << std::endl; closesocket(clientSocket); WSACleanup(); return 1; } 2.4 创建服务器地址结构体并连接 sockaddr_in serverAddr; serverAddr.sin_family =...
An operation was attempted on a non-blocking socket that already had an operation in progress - i.e. callingconnecta second time on a non-blocking socket that is already connecting, or canceling an asynchronous request (WSAAsyncGetXbyY) that has already been canceled or completed. WSAECONNABORTE...
因为socket已设为非阻塞,所以connect会立即返回,但并不表示它不继续执行? 搜一些资料记载如下: 如何设置socket的Connect超时(linux) 1.首先将标志位设为Non-blocking模式,准备在非阻塞模式下调用connect函数 2.调用connect,正常情况下,因为TCP三次握手需要一些时间;而非阻塞调用只要不能立即完成就会返回错误,所以这里会...
WSAENOTSOCK (10038) Socket operation on non-socket. 操作试图不是在套接字上进行。它可能是套接字句柄参数没有引用到一个合法套接字,或者是调用select()函数时,一个fd_set中的成员不合法。 WSAEOPNOTSUPP (10045) Operation not supported. 对于引用的对象的类型来说,试图进行的操作不支持。通常它发生在套...
An operation was attempted on a non-blocking socket that already had an operation in progress - i.e. calling connect a second time on a non-blocking socket that is already connecting, or canceling an asynchronous request (WSAAsyncGetXbyY) that has already been canceled or completed. WSAECONN...
WSAENOTSOCK (10038) Socket operation on non-socket. 操作试图不是在套接字上进行。它可能是套接字句柄参数没有引用到一个合法套接字,或者是调用select()函数时,一个fd_set中的成员不合法。 WSAEOPNOTSUPP (10045) Operation not supported. 对于引用的对象的类型来说,试图进行的操作不支持。通常它发生在套...
A blocking operation is currently executing. 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 error. ...
開non-blocking socket int nFd = socket(AF_INET, SOCK_STREAM, 0); if (nFd == INVALID_SOCKET) { printf("Error creating socket, ec: %d\n", WSAGetLastError()); return false; } unsigned long nNonBlocking = 1; if (ioctlsocket(nFd, FIONBIO, &nNonBlocking) == SOCKET_ERROR) ...
Method 1: Use blocking sockets This problem only occurs with non-blocking sockets. When you use a blocking socket, this problem does not occur because afd.sys handles the socket buffer differently. For more information about blocking and non-blocking socket programming, see the Microsoft Platform ...