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authorLibravatar Jeff Hostetler <jeffhost@microsoft.com>2022-03-25 18:02:57 +0000
committerLibravatar Junio C Hamano <gitster@pobox.com>2022-03-25 16:04:16 -0700
commitbec486b9c13c51b7eca0231ed4b7dac75deaf6a6 (patch)
treeeb0c64d8bff962ab2f93d01c3dc25135c4cf31ed /Documentation/build-docdep.perl
parentfsmonitor--daemon: define token-ids (diff)
downloadtgif-bec486b9c13c51b7eca0231ed4b7dac75deaf6a6.tar.xz
fsmonitor--daemon: create token-based changed path cache
Teach fsmonitor--daemon to build a list of changed paths and associate them with a token-id. This will be used by the platform-specific backends to accumulate changed paths in response to filesystem events. The platform-specific file system listener thread receives file system events containing one or more changed pathnames (with whatever bucketing or grouping that is convenient for the file system). These paths are accumulated (without locking) by the file system layer into a `fsmonitor_batch`. When the file system layer has drained the kernel event queue, it will "publish" them to our token queue and make them visible to concurrent client worker threads. The token layer is free to combine and/or de-dup paths within these batches for efficient presentation to clients. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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