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Added timeout non-zero verification - fixes #776 #781

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merged 1 commit into from Aug 13, 2014
Merged

Added timeout non-zero verification - fixes #776 #781

merged 1 commit into from Aug 13, 2014

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etcimon
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@etcimon etcimon commented Aug 13, 2014

The pubsub listener was making the bstop call wait forever, because it was never listening in the first place: the 0 second Duration timeout was being triggered, rather than being considered as a "no timeout" value.

while (m_listening) {
t.rearm(1.msecs, false);
t.wait();
}
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I guess this is left over from debugging?

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No, the sleep timer creates a new one every msec, it reaches 4500 IDs by the time the server is stopped

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Do you think that this is performance relevant? Timer creation is usually nothing more than assigning a few bytes of memory and incrementing a counter (plus some modulus calculation in the hash map).

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It's not very relevant for performance, I was trying to figure out where all those timers came from when tracing and afterwards, I realized it would have been easier to debug it if it showed up as the same ID.

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So it is in fact a leftover from debugging ;)
I think we should solve this at a lower level. This just makes the code less readable for no obvious gain (apart from making timer debugging slightly easier when using this specific Redis functionality, which should be a highly uncommon case). There could for example be a special per-task default timer that is used by sleep.

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Hmm, I had a feeling the proposed solution would be at a lower level.

@extrawurst
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looks good to me, @s-ludwig can you tag it after merging ?

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@extrawurst: Will do.

Quick fix

Removed RedisDebug version for faster travis builds

Remove debug artifacts
@s-ludwig
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Thanks @etcimon! Hopefully Travis is also reliable again now.

s-ludwig added a commit that referenced this pull request Aug 13, 2014
Add non-zero timeout verification. Fixes #776.

Also removes the RedisDebug version from the Redis integration test to sidestep Travis CI woes.
@s-ludwig s-ludwig merged commit 73884b4 into vibe-d:master Aug 13, 2014
@etcimon etcimon deleted the redis-pubsub-fix branch August 13, 2014 17:02
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3 participants