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Fix concurrent next middleware request handlers and recurse next request handlers #293

merged 1 commit into from Dec 31, 2017


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clue commented Dec 30, 2017

This PR fixes concurrently calling the next middleware request handler multiple times. Admittedly, while allowed, this is a rather uncommon situation.

Also, while I'm at it, this PR also avoids wrapping the return value from the request handler in another promise. The request handler will either return a promise or a value that can be consumed directly. When running example 99 with included benchmarking instructions, this simple change improves performance from ~2500 req/s to ~2600 req/s on my local machine. Also, running the (very synthetic) tests/benchmark-middleware-runner.php improved from ~12s to ~2s on my local machine.

Promise cancellation for pending middleware handlers was previously untested, but I did not encounter any issues here. I've added related tests to achieve 100% test coverage for this class.

Builds on top of #292

@clue clue added this to the v0.8.1 milestone Dec 30, 2017

@WyriHaximus WyriHaximus requested review from WyriHaximus and jsor Dec 30, 2017


Nice well done, that is a huge improvement!



jsor approved these changes Dec 30, 2017


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jsor commented Dec 31, 2017

@clue Test failing for 5.3

@clue clue force-pushed the clue-labs:parallel-next branch from d9590d1 to da623f3 Dec 31, 2017


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clue commented Dec 31, 2017

Updated to use $that reference :shipit:


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WyriHaximus commented Dec 31, 2017


@WyriHaximus WyriHaximus merged commit 800ca51 into reactphp:master Dec 31, 2017

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@clue clue deleted the clue-labs:parallel-next branch Dec 31, 2017

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