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3 Commits

Author SHA1 Message Date
Wolfgang Bumiller e64f38cb6b move chunk_stat, read_chunk to pbs-datastore 
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
 2021-07-09 10:40:14 +02:00
Stefan Reiter 10351f7075 backup: add AsyncRead/Seek to CachedChunkReader 
Implemented as a seperate struct SeekableCachedChunkReader that contains
the original as an Arc, since the read_at future captures the
CachedChunkReader, which would otherwise not work with the lifetimes
required by AsyncRead. This is also the reason we cannot use a shared
read buffer and have to allocate a new one for every read. It also means
that the struct items required for AsyncRead/Seek do not need to be
included in a regular CachedChunkReader.

This is intended as a replacement for AsyncIndexReader, so we have less
code duplication and can utilize the LRU cache there too (even though
actual request concurrency is not supported in these traits).

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
 2021-06-08 09:42:40 +02:00
Stefan Reiter 70a152deb7 backup: add CachedChunkReader utilizing AsyncLruCache 
Provides a fast arbitrary read implementation with full async and
concurrency support.

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
 2021-06-08 09:42:37 +02:00