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[Vijay Samuel <879027@xxxxxxxxxxxxxxxxxx>]

** Changed in: drizzle
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/879027

Title:
  libdrizzle: failed non-blocking connects do not report error

Status in A Lightweight SQL Database for Cloud Infrastructure and Web Applications:
  Fix Released

Bug description:
  1. Use an external event loop with libdrizzle
  2. Try to connect to a non-existent server.
  3. The connect will succeed, but the next operation will fail.

  The problem is that libdrizzle assumes the event loop will set POLLERR
  if the non-blocking connect fails. However, libdrizzle only ever
  passes POLLOUT to drizzle_con_set_events, and thus the external event
  loop never knows it should watch for errors. Worse, libevent, probably
  the most popular event loop library, never sets error indicators, and
  only ever sets the equivalent of POLLIN and POLLOUT. The reason, as
  far as I can tell, is that some polling mechanisms don't return error
  indications{

  The attached patch fixes this by checking getsockopt to see if the
  connect succeeded or failed. I haven't tested this in libdrizzle
  itself (I maintain my own copy in my project), but this works for me.
  Thanks!

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