Occasional Socket crashes

[benpackard]

I've had a few crashes from time to time, always with the same log:

*** Assertion failure in -[SRWebSocket sendPing:], /Users/benpackard/Cocoa/Zetta/Pods/SocketRocket/SocketRocket/SRWebSocket.m:705
Uncaught exception: Invalid State: Cannot call send: until connection is open

Looks like this comes from SocketRocket, though perhaps there is something in ZettaKit that triggers it.

A couple of cases where I've seen this:

• Leaving the app running in the simulator while away (e.g. for 15+ minutes).
• Connecting via certain networks (this crash happened on every launch while I was on a hotel's WiFi, and again at an airport recently).
• Sometimes after spells of heavy foregrounding and backgrounding activity - i.e. closing and opening the app, switching apps, locking the screen, etc.

I know that's not the best bug report... I will update this ticket if @landlessness or I can find a reliable reproduction short of driving to the Westin Alexandria Hotel in VA.

[mdobson]

Interesting. I'll try and get around to this in the next week or two. Let
me know if you have a consistent way to reproduce in the mean time.

I'm not incredibly surprised that some public access points show this
error. Public wifi has been notoriously bad with web sockets. I've seen
blocked web socket traffic, or interference in different ways.

-Matt

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On Wed, Apr 6, 2016 at 3:03 PM, Ben Packard [email protected]
wrote:

I've had a few crashes from time to time, always with the same log:

*** Assertion failure in -[SRWebSocket sendPing:], /Users/benpackard/Cocoa/Zetta/Pods/SocketRocket/SocketRocket/SRWebSocket.m:705
Uncaught exception: Invalid State: Cannot call send: until connection is open

Looks like this comes from SocketRocket, though perhaps there is something
in ZettaKit that triggers it.

A couple of cases where I've seen this:

• Leaving the app running in the simulator while away (e.g. for 15+
  minutes).
• Connecting via certain networks (this crash happened on every launch
  while I was on a hotel's WiFi, and again at an airport recently).
• Sometimes after spells of heavy foregrounding and backgrounding
  activity - i.e. closing and opening the app, switching apps, locking the
  screen, etc.

I know that's not the best bug report... I will update this ticket if
@landlessness https://github.com/landlessness or I can find a reliable
reproduction short of driving to the Westin Alexandria Hotel in VA.

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