Re: How to lock a volume of a drive

Subject: Re: How to lock a volume of a drive

From: Cliff Russell <email@hidden>

Date: Thu, 12 Jan 2006 09:41:40 -0800

Delivered-to: email@hidden

Pranab,

You cross posted to three Apple mailing lists and managed to miss the list most appropriate for you question. File Manager questions are best answered on the carbon-dev list <http://lists.apple.com/mailman/listinfo/carbon-dev> and cross posting is not good nettequite.

FSpSetFlock is meant to lock a file (or a folder on volumes that support folder locking), not to lock entire volume. For more information see <http://developer.apple.com/documentation/Carbon/reference/File_Manager/index.html>

I don't think you can make a FSSpec for a volume (I've never tried...)

Perhaps if you explain why you need to lock the volume, or even better what you are trying to accomplish by locking the volume we can help you better. (Again I suggest you move any questions about this to the carbon-dev mailing list)

Otherwise, welcome to the platform :)

Cliff

On 12-Jan-06, at 6:01 AM, <email@hidden> <email@hidden> wrote:

Hi All
I am new to MacOsx. I am writing a program which will detect the drive mounted on the MacOsx system through an USB device. I want to lock the volume of that drive. I use FSSpec structure to be passed as a parameter in FSpSetFLock() to lock it .In order to form the FSSpec structure I use FSMakeFSSpec() and passed "VolumeRefNo, ParID as fsRtParID and the Filename as volumename and &FSSpec" Now when I run that program FSMakeFSSpec() return error for following different situation.
ParID = 0, Filename =volumename the error is -37 i.e Bad pathname
PartID=fsRtParID ,Filename =0 the error is -35 i.e drive donot exist.
PartID=fsRtParID ,Filename =volumename the error is -35 i.e drive donot exist.
So untill and unless I am able to form the FSSpec structure I am not able to lock that volume. So please can any body suggest how to lock a volume of a drive. Or my approach is right or wrong. Please help.
thanks with regards,
Pranab Halder

The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments.

WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email.

www.wipro.com

_______________________________________________
Do not post admin requests to the list. They will be ignored.
Darwin-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/darwin-dev/email@hidden

This email sent to email@hidden

_______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/email@hidden This email sent to email@hidden

References:
	>How to lock a volume of a drive (From: <email@hidden>)