Re: dispatch_source_create and deployment > 5.1
Re: dispatch_source_create and deployment > 5.1
- Subject: Re: dispatch_source_create and deployment > 5.1
- From: Jeff Evans <email@hidden>
- Date: Tue, 03 Feb 2015 10:57:34 -0800
Sorry, I should have supplied that - it crashes inside create_dispatch_queue at -[OS_dispatch_source_xref_dispose] with "Thread 1: EXC_ARM_BREAKPOINT, subcode=0xdefe"
On Feb 3, 2015, at 10:48 AM, David Duncan wrote:
> On Feb 3, 2015, at 10:34 AM, Jeff Evans <email@hidden> wrote:
>
> All,
>
> I've been using an ios deployment target setting of 5.1, much against my will, because dispatch_source_create reliably crashes if I set the deployment target to 6.0 or higher. This gives people the impression that the app is compatible with ios 5.1, which it is not.
How is your app crashing?
IIRC, 6.0 was when dispatch types became Obj-C objects. I’m not certain what issues that may cause, but I don’t expect them to be insurmountable.
>
> The data type of the return value is dispatch_source_t. Someone has mentioned that create_dispatch_source returns an OS_dispatch_source instead of dispatch_source_t if deploying to ios >= 6.0. But OS_dispatch_source doesn't seem to be defined and I don't see how it can be used by dispatch_source_create.
>
> I've seen another mention of someone encountering this problem, but no one has responded to either. Are so few people using dispatch_source_create with deployments > ios 5.1? I have a feeling I'm making some dumb mistake here.
>
> Thanks, Jeff
>
>
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