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Full Discussion: Locking issue
Top Forums UNIX for Advanced & Expert Users Locking issue Post 302241736 by hariza on Tuesday 30th of September 2008 05:34:09 AM
Old 09-30-2008
Hi Jim,

I have a similar requirement which is basically to detect whether a file ie being locked before I can go and modify it. Is there any possible and simple way that I can check that the file is not being locked by another process. thanks a lot.

Harby.
 

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HAL-IS-CALLER-LOCKED-OUT(1)				      General Commands Manual				       HAL-IS-CALLER-LOCKED-OUT(1)

NAME
hal-is-caller-locked-out - determine if a caller is locked out SYNOPSIS
hal-is-caller-locked-out [options] DESCRIPTION
hal-is-caller-locked-out determines if a specific caller is locked out of a specific D-Bus interface on a specific device. For more infor- mation about both the big picture and specific HAL properties, refer to the HAL spec which can be found in /usr/local/share/doc/hal/spec/hal-spec.html depending on the distribution. OPTIONS
The following options are supported: --udi The UDI (Unique Device Identifier) of the device object. --interface The name of the interface to check for. --caller The unique D-Bus name on the system bus of the caller. --help Print out usage. --version Print the version. RETURN VALUE
If the given process is locked out or an error occurs, this program exits with exit code 1. Otherwise it exits with exit code 0. Note that only the super user (root) or other privileged users can use this tool. BUGS
Please send bug reports to either the distribution or the HAL mailing list, see http://lists.freedesktop.org/mailman/listinfo/hal on how to subscribe. SEE ALSO
hald(8), lshal(1), hal-get-property(1), hal-set-property(1), hal-find-by-property(1), hal-find-by-capability(1) AUTHOR
Written by David Zeuthen <david@fubar.dk> with a lot of help from many others. HAL-IS-CALLER-LOCKED-OUT(1)
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