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Subject:	Locking file in cygwin
Date:	Tue, 26 Apr 2005 09:21:40 -0400
Message-ID:	<6BD989BB73712F41B1EDD1B8A32EA4C385F3DC@EXCHANGEVS1.comtechtel.com>
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From:	"Vladislav Grinchenko" <vladislav DOT grinchenko AT comtechmobile DOT com>
To:	<cygwin AT cygwin DOT com>
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X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id j3QDWv6c007806

Hi,

I am new to cygwin (and win32 programming in general), so if the answer
to my question is covered somewhere else, please point me in the right
direction.

While porting one of my c++ libraries to cygwin, I stumbled over this:

Calling fcntl (fd, F_GETLK, ...) returns ENOSYS (function not
implemented).

I searched the archive and couldn't find anything appropriate to explain
why.
In short, this happens when I try to handle PID file locking to preclude
multiple instances of the same program simultaneously running on a
host.

If there is a more preferable way of handling this task in cygwin/win32,
I wouldn't mind implementing it.

One more thing, I don't need backward compatability if that is the case.
My target platforms are WinXP and Win2000.

Thanks in advance,
-Vlad

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