Web5 jan. 2007 · With this scheme in place, all that needs to be done to add AIO support for any pollable file type is to make sure that the corresponding f_op->aio_read/aio_write implements O_NONBLOCK behaviour if called in aio context, i.e. with an async kiocb. WebSetting a file descriptor to blocking or non-blocking mode « C recipes « ActiveState Code Languages Tags Authors Sets Setting a file descriptor to blocking or non-blocking mode (C recipe) A simple function to set a file descriptor (i.e. a socket) to blocking or non-blocking mode. C, 22 lines Download
linux socket 阻塞非阻塞设置 fcntl,F_GETFL,F_SETFL,flags
Web21 aug. 2013 · Linux fcntl函数详解. 功能描述:根据文件描述词来操作文件的特性。. fcntl ()针对(文件)描述符提供控制.参数fd是被参数cmd操作(如下面的描述)的描述符. 1.复制一个现有的描述符(cmd=F_DUPFD). 2. 获得/设置文件描述符标记(cmd=F_GETFD或F_SETFD). 3. 获得/设置文件状态 ... WebNAME fcntl.h - file control options SYNOPSIS. #include DESCRIPTION. The header shall define the following requests and arguments for use by the functions fcntl and open.. Values for cmd used by fcntl (the following values are unique) are as follows:. F_DUPFD Duplicate file descriptor. F_GETFD Get file descriptor flags. iapmo tap water filter puricon
Linux 设备驱动--- 阻塞型字符设备驱动 --- O_NONBLOCK --- 非阻 …
Web18 jun. 2024 · One way is to not set O_NONBLOCK in the userspace in the first place. Either to somehow make the kernel internals ignore O_NONBLOCK, and that has … Webif (sock->file->f_flags & O_NONBLOCK) flags = MSG_DONTWAIT; 上述代码中 sock 关联的 file 中获取其 f_flags,如果 flags 有 O_NONBLOCK 标识,那么就设置 msg_flags … Webfile descriptors fd 1: fd flags ptr file table fd status flags current file offset d i-node table fd 2: fd 3:. . . . gp v-no e ptr fd status flags i-node information current file size current file offset v-node ptr linked list of locks file descriptors struct flock fd 1: fd flags ptr link struct flock link fd 2: fd 3:. . . . flags, etc starting ... iapmo stands for