第一,struct fd_set可以理解为一个集合,这个集合中存放的是文件描述符(filedescriptor),即文件句柄,这可以是我们所说的普通意义的文件,当然Unix下任何设备、管道、FIFO等都是文件形式,全部包括在内,所以毫无疑问一个socket就是一个文件,socket句柄就是一个文件描述符。fd_set集合可以通过一些宏由人为来操作: FD_ZER...
安装android模拟器了吧，这样是不允许运行main方法的
Debug无法运行: 报错:Cannot connect to VM Socket operation on nonsocket: configureBlocking FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197) ERROR: transport error 202: unable to create socket: winsock error 87 ERROR: JDWP Transport dt_socket ...
当前版本有这样的问题，后续版本无需加bind.
jmeter踩坑 java.net.SocketException: Socket operation on nonsocket: connect at java.net.DualStackPlai,程序员大本营,技术文章内容聚合第一站。
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当用epoll检测连接时,socket既可读又可写,只能在EPOLLERR中通过getsockopt获取错误码。 完整代码如下: /* * File: main.cpp * Created on March 7, 2013, 5:54 PM */ #include <cstdlib> #include <string> #include <iostream> #include <sys/epoll.h> ...
Connects this channel's socket. If this channel is in non-blocking mode then an invocation of this method initiates a non-blocking connection operation. If the connection is established immediately, as can happen with a local connection, then this method returnstrue. Otherwise this method returns...
Connects this channel's socket. If this channel is in non-blocking mode then an invocation of this method initiates a non-blocking connection operation. If the connection is established immediately, as can happen with a local connection, then this method returnstrue. Otherwise this method returns...
客户端socket连接服务端有两种方法:connect()和connect_ex(),其中后者connect_ex()为前者的扩展版本。 connect()用法: 典型代码(连接服务端端口) importsocketHOST='192.168.0.1'PORT=80s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)# 创建套接字# 地址簇 : AF_INET (IPv4)# 类型: SOCK_STREAM (使用...