Code-free
Code-free

Don't Run You Own Servers

Let me disagree with Marco Arment

Russ Bishop
April 05, 2014

Marco was getting into it with Oliver Haslam over server hosting, and see this post by Brent Simmons. Marco extolled the virtues of running your own VPS or Virtual Private Server. He suggested that you learn Linux administration and port forwarding; that you learn how to setup mysql log shipping and read-only replicas.

Thanks, but no thanks. . . .

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Apple and C#?

when i wish upon a star

Russ Bishop
April 02, 2014

I was listening to Debug #32: John Siracusa on Copland 2010 in which the subject of Apple needing a next-generation language was discussed.

The elephant in the room seems to be why not take advantage of C#? Guy and John both seemed to dismiss it out of hand, but it hits all the requirements:

  1. It's an ECMA standard, Apple could . . .

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Seriously Apple?

Try opening this file with Keynote 09

Russ Bishop
April 01, 2014

I understand you updated your apps; that's totally cool.

What isn't cool is giving me a message that my presentation is too old and to try opening it with Keynote 09. Which I no longer have.

Would it have killed you to take that conversion code, package it up, and embed it in the new Keynote? You know, like a sane person?

If . . .

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UIScreen.wantsSoftwareDimming

tl;dr: it doesn't work

Russ Bishop
March 29, 2014

A quick heads up: apparently UIScreen.wantsSoftwareDimming doesn't work on iOS 7, the iPhone 5S, or both. I was unable to detect a difference in the brightness levels no matter what that setting was at; previously you had to set that flag then adjust the brightness to make it take effect. (I've always felt that LCD brightness levels . . .

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Interlocked.CompareExchange

I've got a hammer and you're all f**king nails

Russ Bishop
March 28, 2014

Interlocked.CompareExchange is magic. No, seriously.

Yes, it does a comparison and replaces a value if the comparison is true. In all cases, it returns the old value. Why is that so interesting?

Well, you can read a value: value = Interlocked.CompareExchange(ref _location, null, null). If _location was already null, it will compare to the . . .

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On Rediscovering the Classic Coordinated Transaction Problem

Everything old is new again

Russ Bishop
March 28, 2014

While working on the new immutable engine of chaos today, I wrote myself into a corner and in the process re-discovered the classic coordinated transaction problem:

If you have two separate transactions that both need to commit together or roll back together, how can you ensure that happens as an atomic operation?

If I commit the in-memory . . .

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ContextLocal<T>

the best thing you'll never use

Russ Bishop
March 28, 2014

If you are doing parallel operations on immutable data you may run into a problem. A lot of us are used to using [ThreadStatic] static fields to hold ambient state that exceeds the built-in ThreadPrincipal or CurrentCulture settings. If you are running in a web context you certainly have access to HttpContext, but otherwise you appear to be . . .

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