On Fri, Dec 07, 2001 at 11:57:58AM +0300, 3APA3A wrote: > The way file locks interfere with file access depends on OS. There are 2 > possible situations: moderate and non-moderate file locks. *BSD and > linux use non-moderate locking, while Windows NT locking is moderate. > What does it mean? Under Unix file locking is only checked then another > application tries to lock the file. If application doesn't use file > locking it will not be affected by file locking. 3APA3A -- close.... A long-time feature of many Unix systems, including Linux (and probably all the BSDs too, but I don't know this for sure) is mandatory file locking, implemented in the kernel. It can be turned on using the setgid bit on regular files. Look for Documentation/mandatory.txt in the linux kernel source tree. It has all the gory details on mandary file locking, as it is implemented in the linux kernel. (Or, was implemented, in 1996.. :) Cheers! -- People who separate manpages from the programs they document would steal sheep. -- apologies to Goudy
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