205
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master: 99%

Ran 14 Jul 2015 01:41PM UTC

Jobs 5

Files 13

Run time 1min

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Build # 205

Build Type

push

travis-ci

Committed by

grddev

Commit Message

Avoid stack overflow error with Future.after

With a long list of resolved futures, the previous implementation
caused a stack-overflow exception, as each call to await_next happened
within the previous call (synchronously).

This changes the behavior to loop over futures instead of using
recursion while on_complete dispatches synchronously in the same thread.
To avoid code duplication we always dispatch in the terminating cases,
even if it introduces an extra stack frame. The looping condition
protects against cases where a future would be resolved at a later
point by the calling thread (which is what the tests do), and the last
part of the condition protects against dispatching in other threads.

While the algorithm looks like a loop that adds multiple concurrent
on_complete listeners, the intention is in fact still to only ever have
one concurrent listener, making sure that the combined nil future is
only ever accessed from one thread at a time (without using locks).

Run Details

2616 of 2623 relevant lines covered (99.73%)

19247.03 hits per line

Jobs

ID	Job ID	Ran	Coverage
1	205.1 (1.9.3)	14 Jul 2015 01:41PM UTC	98.69	Travis Job 205.1
2	205.2 (2.0.0)	14 Jul 2015 01:41PM UTC	99.04	Travis Job 205.2
3	205.3 (2.1.1)	14 Jul 2015 01:41PM UTC	99.04	Travis Job 205.3
4	205.4 (jruby)	14 Jul 2015 01:41PM UTC	98.47	Travis Job 205.4
5	205.5 (jruby-head)	14 Jul 2015 01:43PM UTC	0.0	Travis Job 205.5

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