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Re: Read lines from very large text file
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Re: Read lines from very large text file


  • Subject: Re: Read lines from very large text file
  • From: "Sean McBride" <email@hidden>
  • Date: Sat, 7 Feb 2009 00:30:40 -0500

Joar Wingfors (email@hidden) on 2009-02-06 12:06 AM said:

>> How can you guarantee a file's existence?  sudo rm -f?
>
>How about calling open() on it?

:)  But note the latter part of the sentence: "this method should only
be used if the file is guaranteed to exist _for the duration of the data
object’s existence_."  So if I create an NSData with
dataWithContentsOfMappedFile and then the user deletes the backing file,
then what?  I just tried in a little test app: open(),
dataWithContentsOfMappedFile, breakpoint, rm file, access the NSData.
Seems to work.

Sean
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  • Follow-Ups:
    • Re: Read lines from very large text file
      • From: Clark Cox <email@hidden>
References: 
 >Re: Read lines from very large text file (From: Matt Neuburg <email@hidden>)
 >Re: Read lines from very large text file (From: Michael Ash <email@hidden>)
 >Re: Read lines from very large text file (From: "Sean McBride" <email@hidden>)
 >Re: Read lines from very large text file (From: Joar Wingfors <email@hidden>)

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