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Re: detecting when an app is beach-balling

Subject: Re: detecting when an app is beach-balling
From: Martin Redington <email@hidden>
Date: Mon, 22 Oct 2007 10:59:57 +0100
Delivered-to: email@hidden
Delivered-to: email@hidden

Thanks. That looks like it would work for scriptable apps (although I haven't tried it against a beachballer), but not for non-scriptable ones.

Spin Control doesn't seem to do any polling - it just seems to be waiting for a callback or notification of some kind - presumably that's in some private API.


On 20 Oct 2007, at 18:34, Emanuele ∞ Vulcano wrote:

Il giorno 20/ott/07, alle ore 17:35, Martin Redington ha scritto:
I was hoping that there might be some kind of no-op Apple Event that I could despatch to it, to see whether I get a reply or not, but I can't spot anything in the docs ...
There is certainly one -- the one that is dispatched by AppleScript when you tell app "SomeApp" to run.

- ∞


AE2000 (1058): Sending an event:
------oo start of event oo------
{ 1 } 'aevt':  ascr/gdte (i386){
          return id: 69337094 (0x4220006)
     transaction id: 0 (0x0)
  interaction level: 64 (0x40)
     reply required: 1 (0x1)
             remote: 0 (0x0)
      for recording: 0 (0x0)
  target:
    { 2 } 'psn ':  8 bytes {
      { 0x0, 0x4600001 } (Address Book)
    }
  fEventSourcePSN: { 0x0,0x45e0001 } (osascript)
  optional attributes:
    < empty record >
  event data:
    { 1 } 'aevt':  - 1 items {
      key '----' -
        { 1 } 'long':  4 bytes {
          0 (0x0)
        }
    }
}


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