[Pidgin] #3730: Implementation for file-sending through proxies

[Pidgin]

#3730: Implementation for file-sending through proxies
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  Reporter:  galt   |       Owner:  nwalp              
      Type:  patch  |      Status:  new                
  Priority:  minor  |   Milestone:                     
 Component:  XMPP   |     Version:  2.2.2              
Resolution:         |    Keywords:  file,transfer,proxy
   Pending:  0      |  
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Comment (by evands):

 Re: freeing various things: Okay, sounds good. I'm working in a vacuum
 recently so couldn't put that structure in context of the rest of the prpl
 - your explanation jives for me.

 > Also, I have a question about libpurple callbacks. Can a callback be
 called while another one is still running? Or are they queued? I was
 wondering about that when I realized that by the standard, if the other
 side decides to connect directly, they would both connect and send the
 streamhost-used, hence triggering 2 different callbacks.
 I'm not 100% sure what you're asking, but I think the answer is 'no'.
 Libpurple is not designed to run on multiple threads simultaneously, so
 two functions could not run simultaneously.

 Alternately, if you're asking if one callback can trigger another callback
 before finishing, that's certainly possible depending on the code path.

 Alternately, if you're asking if two different callbacks could possibly
 both be triggered (at different times) despite being involved in a single
 file transfer, the answer is "yes, I'd think so, assuming the code or the
 protocol doesn't explicitly prevent that".

 Does that help?

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Ticket URL: <http://developer.pidgin.im/ticket/3730#comment:5>
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