Re: How to wait for file closing?

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  • Posted by mattlewis (admin) Dec 12, 2012
  • 1525 views
DerekParnell said...

I just did a quick test and it appears that lock_file() is not working on Windows platform. It appears that it always reports that it locked a file, even when the file is locked by another lock_file() in a separate application.

I think I know why. In be_machine.c, inside of lock_file(), I find: 

#if defined(EMINGW) 
	r = 0;  // TODO: FOR NOW! 
#else // defined EMINGW 
	r = lock(fd, first, last - first + 1); 
#endif // defined EMINGW

...and hg blame tells me that "NOW" was quite a while ago: 

jeremy Wed Apr 29 16:24:43 2009 +0000:      r = 0;  // TODO: FOR NOW!

I suspect we should convert the FILE* to a HANDLE using _get_osfhandle, and then use LockFile on Windows.

Matt

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