Looping connect call for a non blocking socket Post: 302705101

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Top Forums Programming Looping connect call for a non blocking socket Post 302705101 by satish@123 on Monday 24th of September 2012 08:41:01 AM

09-24-2012

Registered User

So connect, select and again connect based on the return codes and errno indications achieve smooth non blocking connection but I am still thinking of looping connect call and I verified the truss to see the return code of connect when I loop -

First remote connect said - EINPROGRESS as expected.
Next try indicated - EISCONN. Indicating already connected.
Even if not then would have indicated EALREADY. Having 100 milli secods each time before trying to connect, there should not be any issue except that the last retry may indicate connect = 0 and will not update errno (The only chance of failure in the loop after 400 milli seconds, mostly in bad network cases). Other case If connect returned 0 will not update errno but the next try to same connected socket would indicate error - EISCONN, correct?

connect(4, 0x080453E0, 16, SOV_DEFAULT) Err#150 EINPROGRESS
pollsys(0x00000000, 0, 0x08045330, 0x00000000) = 0
connect(4, 0x080453E0, 16, SOV_DEFAULT) Err#133 EISCONN

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