Close stream resource if connection fails #48
Merged
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Currently, if a connection attempt is being rejected, the resulting promise will successfully be rejected. However, the underlying socket resource will not be closed (and is not exposed to the outside).
This is a trivial fix for leaking these resources.
This situation is already covered by our test cases, so it does not include additional tests. We could look into counting open socket descriptors, but we'd likely have to resort to using system utilities as PHP does not appear to offer anything related.
This PR builds on top of #46, so the diff also includes its changes. Look here for changes only related to this PR alone.(no longer applies after rebasing)