What does the code for this look like, [controller2
haltBgCalculationThread:withStatus];? Are both your threads, thread safe?
Are the controllers your controllers or a Cocoa derived one from (NSController,
.etc)?
-Tony
On Jun 19, 2010, at 3:35 PM, John Love wrote:
> I am having inconsistent problems when I call from Controller #1 one of 1's
> methods which looks like:
>
> - (void ) exitBgCalculationThread:(int)withStatus {
> [controller2 haltBgCalculationThread:withStatus];
> }
>
> Controller #2's haltBgCalculationThread:withStatus eventually calls:
>
> itsException = [NSException exceptionWithName:newErrorName
> reason:newErrorReason
> userInfo:nil];
> [itsException raise]; // stops here and long jumps to
> try-catch-finally Handler
> // within EC's -calculateWorksheetRow:
>
> The call to -raise enters the @catch block of a try-catch-finally Handler
> within Controller #2 (the only such Handler anywhere). The only statement
> within this @catch block is a call to NSLog. After this, the NSLog call
> falls thru to the @finally portion which returns the correct error code.
> Controller #2's calculation for loop immediately exits and through a
> call-back routine sends a message back to Controller #1 which displays the
> appropriate error message in the active window.
>
> The correct error message is displayed; however, in seemingly random
> instances, the above NSLog is never seen.
>
> Whenever, I call Controller #2's -haltBgCalculationThread: from Controller
> #2, everything works dandy; the lack of calling NSLog in random instances
> occurs only when I call Controller #2's -haltBgCalculationThread: from
> Controller #1.
>
> Maybe?? it is because I am bouncing between separate Controllers and am
> causing mayhem.
>
> Any psychic premonitions would be welcomed.
>
> John Love
>
>
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-Tony
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