update concurrency-limit to std::future #492
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This branch updates the `concurrency-limit` middleware to std::future. The new implementation uses the new owned semaphore permit API added in Tokio 0.2.19 (tokio-rs/tokio#2421). Similarly to #490, the old implementation could not be directly translated due to `tokio::sync`'s `Semaphore` losing its `poll`-based API in 0.2. Signed-off-by: Eliza Weisman <eliza@buoyant.io>
Signed-off-by: Eliza Weisman <eliza@buoyant.io>
olix0r
reviewed
Apr 27, 2020
olix0r
approved these changes
Apr 27, 2020
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This branch updates the
concurrency-limitmiddleware to std::future.The new implementation uses the new owned semaphore permit API added in
Tokio 0.2.19 (tokio-rs/tokio#2421). Similarly to #490, the old
implementation could not be directly translated due to
tokio::sync'sSemaphorelosing itspoll-based API in 0.2.