Re: Using NSURLSession in a command line tool?
Re: Using NSURLSession in a command line tool?
- Subject: Re: Using NSURLSession in a command line tool?
- From: Roland King <email@hidden>
- Date: Mon, 16 Mar 2015 16:20:57 +0800
> On 16 Mar 2015, at 16:10, Daryle Walker <email@hidden> wrote:
>
> How should something like a NSURLSession be used in a command-line tool? Its actions take time, so a straight CLI program will end when the task is being started. I guess something like a run loop needs to be maintained. I need the results of the task to determine the return code, so I can’t just fire and forget.
>
Yep - run a runloop. That’s what I do in one of my command-line tools which uses USB and has to wait around for discovery and background threads and NSTasks and all sorts of amusing things.
main() has, very near the end,
CFRunLoopRun();
and when I’ve done all the processing I need to do, or have an error, I call
CFRunLoopStop( [ [ NSRunLoop mainRunLoop ] getCFRunLoop ];
and the main runloop then eventually exits and I clean up.
I believe I used the CFRunLoop* functions because I don’t recall the NSRunLoop ones giving you a nice simple stop method.
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