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Re: Cache Class review (low priority)
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Re: Cache Class review (low priority)


  • Subject: Re: Cache Class review (low priority)
  • From: Jens Alfke <email@hidden>
  • Date: Fri, 2 May 2008 11:03:22 -0700


On 2 May '08, at 9:32 AM, Western Botanicals wrote:

The reason I put the AutoReleasePools in there is because I am getting these errors in the output. So if you can help me find what is wrong that would be great. Every time I create a Date or Timer object, I get one or both of these:

You're probably running this as a GUI-less tool process, i.e. directly calling your code from main(). If you do this, you need to create a top-level autorelease pool before calling into your code. In general, main() looks like:
int main( int argc, const char **argv ) {
NSAutoreleasePool *pool = [NSAutoreleasePool new];
int result = 0;
// your program code goes here
[pool drain];
return result;
}


In a GUI application (or even a runloop-based tool) you don't have to worry about this, because NSRunLoop makes sure to create an autorelease pool whenever it calls into application code.

Speaking of runloops, your test code needs to idle the runloop in between its tests, to give the timer a chance to expire entries. You currently have some (commented-out) usleep calls, but those won't work, because the runloop is on your thread and has to be explicitly given time to run. You can replace those with
[[NSRunLoop currentRunLoop] runUntilDate: [NSDate dateWithTimeIntervalSinceNow: 0.25];


—Jens

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  • Follow-Ups:
    • Re: Cache Class review (low priority)
      • From: Uli Kusterer <email@hidden>
References: 
 >Re: Cache Class review (low priority) (From: Gregory Weston <email@hidden>)
 >Re: Cache Class review (low priority) (From: Jens Alfke <email@hidden>)
 >Re: Cache Class review (low priority) (From: Western Botanicals <email@hidden>)

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