文件加锁是一个非常棘手的问题，很多时候都存在竞争条件。
File locking is a very tricky issue and race conditions abound.
如果跟文件有关的一个进程挂起了，那么这就会使虚拟机不能对该文件加锁。
If a process is hanging around that is holding onto the file, it will prevent the virtual machine from being able to get the lock on the file.
看起来我所找到的任何一种所谓的文件加锁的正确指南，之后又都进行了更新。
It seemed that for every guideline I found spelling out the correct way to lock files, a subsequent correction was posted.
这些系统对文件进行加锁，这样在某个时间只有一个开发人员对中心仓库具有写入权限。
These systems lock files so that only one developer has write access to the central repository at a time.
如果一个事务在很偶然的情况下因为加锁的文件而失败了，那么这并不会产生实际的问题。
There would also be no real penalty for a transaction failing occasionally due to a locked file.
排他锁。除加锁进程外其他进程没有对已加锁文件读写访问权限。
LOCK_EX an exclusive lock. This denies all other processes both read and write access to the file.
给出，文件、记录加锁解锁的方法及解决死锁问题的途径。
Methods of file locking and record locking or file unlocking and record locking or file unlocking and record unlocking were given.
但是，如果你要防范的人懂得全部的技巧，那你最好还下载比较高级的第三方软件来为文件夹加锁。
However, if you're dealing with someone who can do all of that, it's best you check out more advanced 3rd party software to lock down a folder.
如果你对付的是稍有一些电脑知识的人，那也有另一种方法来创建安全加锁的文件夹，而不必购买任何第三方的软件。
If you're dealing with someone a little more computer savvy, there is another way to create a secure locked folder without having to buy any 3rd party software.
如果你对付的是稍有一些电脑知识的人，那也有另一种方法来创建安全加锁的文件夹，而不必购买任何第三方的软件。
If you're dealing with someone a little more computer savvy, there is another way to create a secure locked folder without having to buy any 3rd party software.
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