test

mediadb (20260424+81) unstable; urgency=medium

  * Fix preview inflight coalescing: use predicate-based wait_until to prevent

    lost CV notifications causing 30s timeouts on simultaneous requests.

 -- Jan Koester <jan.koester@tuxist.de>  Thu, 24 Apr 2026 00:00:00 +0200

mediadb (20260424+80) unstable; urgency=medium

  * Fix video overlay: stop fetch on close (pause + removeAttribute('src'))

dh_auto_configure

dh_auto_configure

dh_auto_configure

    {

        std::unique_lock<std::mutex> lk(inflight_mutex_);

        // Wait up to 30 s for a duplicate in-flight render to finish.

        auto deadline = std::chrono::steady_clock::now() + std::chrono::seconds(30);

        while (inflight_.count(key)) {

            lk.unlock();

            if (auto hit = cache_.get(key)) return hit;

            lk.lock();

            if (inflight_cv_.wait_until(lk, deadline) == std::cv_status::timeout) {

        // Wait for a duplicate in-flight render to finish.

        // Uses predicate form so notifications between unlock/relock are not lost.

        if (inflight_.count(key)) {

            std::cerr << "[PREVIEW] coalescing: waiting for in-flight render of " << key << "\n";

            if (!inflight_cv_.wait_until(lk, deadline,

                    [&]{ return inflight_.count(key) == 0; })) {

                error_out = "timeout waiting for in-flight preview";

                return nullptr;

            }

        }

        // Check caches — another thread/node may have finished rendering.

        if (auto hit = cache_.get(key)) return hit;

        // Re-check L2 after inflight wait — another node may have finished rendering

        if (l2_) {

            if (auto hit = l2_->get(key, cache_)) return hit;

        }