Web第二,若将时间值设具体值,函数经过timeout时间阻塞状态,监测是否有事件发生,文件无变化返回0,有变化返回一个正值。第三,0;非阻塞等待,直接测试所有指定的描述符 … WebOct 12, 2024 · The WSAPoll function is defined on Windows Vista and later. The WSAPOLLFD structures. An application sets the appropriate flags in the events member …
poll(3): input/output multiplexing - Linux man page
WebDec 24, 2016 · 如果POLLIN事件被设置,则文件描述符可以被读取而不阻塞。. 如果POLLOUT被设置,则文件描述符可以写入而不导致阻塞。. 这些标志并不是互斥的:它 … WebMay 11, 2015 · If poll () sets the POLLOUT flag then at least one byte may be written without blocking. You may then find that a write () operation performs only a partial write, so … domaslavice
Ubuntu Manpage: poll — synchronous I/O multiplexing
WebMay 19, 2016 · 如果POLLOUT 被设置,则 ... 在 events 域中使用该宏函数,能够在文件描述符的值无效时,结束 poll() 。相反,在 revents 域上使用该宏函数时,在检查 poll() 函数 … WebPOLLOUT The file or message queue is capable of accepting output. POLLPRI An exceptional condition is present on the file or message queue. revents: Returned events. This field specifies the events that have occurred. This can be any combination of the events requested by the events field. This field can also contain one of the following flags ... WebNov 21, 2024 · ZMQ_POLLOUT:发送消息(zmq socket)或者字节(fd ... 返回值. poll消息成功时,zmq_poll函数返回检测到事件请求的item个数,同时结构体zmq_pollitem_t 中 … domašov u brna