如何在osx中​​使用open（）文件，以便其他线程无法删除它？

Question

我想在我的应用程序中实现文件级锁定。

Answer 1

In short:

fd = open( "./foo", O_RDWR + O_EXLOCK);

But you first need to check if your fs supports it, see Exclusive File Access in Mac OS X . If not, you can lock 'by convention', using for example a lock file. This is explained in the article.