Re: Ending NSTask doesn't release file handle opened by the task it wraps.
Re: Ending NSTask doesn't release file handle opened by the task it wraps.
- Subject: Re: Ending NSTask doesn't release file handle opened by the task it wraps.
- From: じょいすじょん <email@hidden>
- Date: Fri, 22 Jul 2016 10:02:53 +0900
> On 22 Jul 2016, at 8:22, Uli Kusterer <email@hidden> wrote:
>
> On 21 Jul 2016, at 17:20, Graham Cox <email@hidden> wrote:
>> One of my apps uses NSTask to wrap a command line utility that is embedded in the same app’s resources. This utility writes files to disk - I have no knowledge of which APIs it uses to do this. If the task has ended (and I can see that the actual instance of the running command line tool has disappeared from my process tasks in Activity Monitor), and I send the file to the trash, I can’t delete it (empty trash) until the app as a whole is quit - I get the message that the file is still in use.
>>
>> I’ve checked that I’m closing down the NSTask properly, as far as I can see.
>>
>> Is this the expected behaviour?
>
> Are you reading all the data from the task (i.e. its standardOutput, not the file) before you close it? AFAIR that's a prerequisite for it to properly close.
>
If that fixes it and it's not documented, please file a bug against the docs.
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