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Re: NSWorkspace File System Methods
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Re: NSWorkspace File System Methods


  • Subject: Re: NSWorkspace File System Methods
  • From: Douglas Davidson <email@hidden>
  • Date: Thu, 17 Jan 2002 10:02:00 -0800

On Thursday, January 17, 2002, at 09:28 AM, Joe Muscara wrote:

First, I'm calling getFileSystemInfoForPath:isRemovable:isWritable:isUnmountable:description:
type: and according to the NSWorkspace documentation, *type* should return an NSString that "indicates the file system type; values could be "HFS," "UFS," or other values." But for both this value and the NSString returned by description, all I get is "nil" (the 'value' shown in the PB Debug pane becomes 0x0 after the call). The three BOOLs return expected values.

I declare the NSStrings thusly

NSString *description;
NSString *fileSystemType;

and then call the method above like this (other declarations left out for clarity)

[workspace getFileSystemInfoForPath:diskPath
isRemovable:&removableFlag
isWritable:&writableFlag
isUnmountable:&unmountableFlag
description:&description
type:&fileSystemType];

Any suggestions to what I might be doing wrong, or is there some bug?

This is a bug; on the other hand, filesystem types are complicated enough now that a simple string like this is not so useful. The Carbon files APIs have extensive means for querying filesystem attributes, and there are also BSD-level APIs.

My second question is that I want my app to update when there's a change to the file system (disk mount/unmount, etc.). I would think that the right method to use would be fileSystemChanged, but damned if I can figure out how. I mean, where do I put it in my app? If it were a delegate method, I'd know, but maybe I've been doing those too long lately. Sorry if this is a "duh."

Register with NSWorkspace's notification center for the "did mount" and "did unmount" notifications.

Douglas Davidson


  • Follow-Ups:
    • Re: NSWorkspace File System Methods
      • From: Joe Muscara <email@hidden>
References: 
 >NSWorkspace File System Methods (From: Joe Muscara <email@hidden>)

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