f_getfl fcntl
參數s 是你想要控制的socket descriptor，而cmd 應該要設定為F_SETFL，至於arg 可以是下列任一個指令（如我所述，參數比我這邊介紹的還要多，但是我只會探討 ... ,You asked: Why the flag returned by fcntl(fd, F_GETFL) only include a subset of bits of what I set when open file? Does it only show the ones that are modifiable?
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 f_getfl fcntl 相關參考資料
3.14 fcntl函数（2）-利用F_GETFL参数值获取文件读写状态_ ...
int fcntl(int filedes, int cmd, ...);. 当第二个参数cmd=F_GETFL时，它的作用是取得文件描述符filedes的文件 ... https://blog.csdn.net 9.11. fcntl() - Beej's Guide to Network Programming 正體中文版
參數s 是你想要控制的socket descriptor，而cmd 應該要設定為F_SETFL，至於arg 可以是下列任一個指令（如我所述，參數比我這邊介紹的還要多，但是我只會探討 ... http://beej-zhtw.netdpi.net c - Usage of F_GETFL and F_SETFL - Stack Overflow
You asked: Why the flag returned by fcntl(fd, F_GETFL) only include a subset of bits of what I set when open file? Does it only show the ones that are modifiable? https://stackoverflow.com fcntl(2) - Linux manual page - man7.org
F_GETFL (void) Return (as the function result) the file access mode and the file status flags; arg is ignored. F_SETFL (int) Set the file status flags ... http://man7.org fcntl(2): change file descriptor - Linux man page
The file status flags and their semantics are described in open(2). F_GETFL (void): Get the file access mode and the file status flags; arg is ignored. F_SETFL (int) ... https://linux.die.net fcntl即F_SETFL,F_GETFL的使用，设置文件的 ... - CSDN博客
1、获取文件的flags，即open函数的第二个参数: flags = fcntl(fd. https://blog.csdn.net fcntl即F_SETFL,F_GETFL的使用，设置文件的flags_linking530 ...
1、获取文件的flags，即open函数的第二个参数: flags = fcntl(fd. https://blog.csdn.net Getting File Status Flags (The GNU C Library) - Gnu.org
Macro: int F_GETFL. This macro is used as the command argument to fcntl , to read the file status flags for the open file with descriptor filedes . The normal return ... https://www.gnu.org Linux fcntl函数详解- 夕相待- 博客园
文件控制函数 fcntl -- file control 头文件： ... int fcntl(int fd, int cmd, struct flock *lock); ... 获得／设置文件状态标记(cmd=F_GETFL或F_SETFL). 4. https://www.cnblogs.com Linux系统调用--fcntl函数详解_运维_this_CAPSLOCK 的专栏 ...
3. cmd值的F_GETFL和F_SETFL：. F_GETFL 取得fd的文件状态标志，如同下面的描述一样(arg被忽略)，在说明open函数时，已说明 ... https://blog.csdn.net |