在C / C Linux的文件锁定++ [英] Locking files in linux with c/c++
问题描述
我想知道,您可以:锁住一个行或在Linux中的文件和文件的其余部分的单个字符应该仍可以访问其他进程?
我收到了关于与/ C ++在Linux下C文件模拟交易的任务。
请给我一个答案,如果答案是肯定的,给我从那里我可以采取偷看,使这项工作的一些链接。
I am wondering if you can : lock only a line or a single character in a file in linux and the rest of the file should remain accessible for other processes? I received a task regarding simulating transaction on a file with c/c++ under linux . Please give me an answer and if this answer is yes ,give me some links from where i could take a peek to make this task.
谢谢,
Madicemickael
Thanks, Madicemickael
推荐答案
是的,这是可能的。
Unix的方式做,这是通过 的fcntl
或 提供lockf
。
不管你选择,确保只使用它,而不是将两者搅和。有一个关于它的看这个问题(与答案):<一href=\"http://stackoverflow.com/questions/575328/fcntl-lockf-which-is-better-to-use-for-file-locking\">fcntl,提供lockf,这是更好的为文件锁定使用?。
The Unix way to do this is via fcntl
or lockf
.
Whatever you choose, make sure to use only it and not mix the two. Have a look at this question (with answer) about it: fcntl, lockf, which is better to use for file locking?.
如果可以,在 UNIX环境高级编程。
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