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lukeredpath/operations.m

Created September 6, 2012 15:13
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operations.m
NSOperation *op1 = /* get operation */;
NSOperation *op2 = /* get operation */;
[op1 addDependency:op2];
[queue addOperation:op1];
[queue addOperation:op2];
// op1 seems to run before op2, and if I don't add op2, op1 runs anyway
@lukeredpath

lukeredpath commented Sep 6, 2012

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Breakpoint inside op1's start method:

(lldb) print (BOOL) [[[self dependencies] objectAtIndex:0] isSuccessful]
(BOOL) $13 = NO
(lldb) print (BOOL) [[[self dependencies] objectAtIndex:0] isReady]
(BOOL) $14 = YES
(lldb) print (BOOL) [[[self dependencies] objectAtIndex:0] isFinished]
(BOOL) $15 = NO
(lldb) print (BOOL) [[[self dependencies] objectAtIndex:0] isStarted]
(BOOL) $16 = NO
(lldb) print (BOOL) [[[self dependencies] objectAtIndex:0] isExecuting]

@lukeredpath

lukeredpath commented Sep 6, 2012

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Fixed it - NSOperation subclass was defining isReady without calling super.

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