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| Do you know where your variables are? | |
| PerlMonks |
Re^3: What the flock!? Concurrency issues in file writing.by bluto (Curate) |
| on Oct 06, 2008 at 16:19 UTC ( [id://715617]=note: print w/replies, xml ) | Need Help?? |
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As I mentioned before you must put a sysseek in there (e.g. after the flock, but before the syswrite). If you don't you will see corruption since a single process will have a stale version of the current EOF for it's file descriptor. I also see corruption with your code on my mac. I don't see it if there is a sysseek($FH, 0, 2). You mentioned that sysseek() "broke everything". When you put it back in this code, and check for error returns, what do you see?
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