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restore: Fix packcache capacity math with failed downloads

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Signed-off-by: Igor Fedorenko <igor@ifedorenko.com>
This commit is contained in:
Igor Fedorenko
2018-09-12 21:48:58 -04:00
committed by Alexander Neumann
parent e010f3b884
commit 32d5ceba87
2 changed files with 23 additions and 3 deletions
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internal/restorer/packcache.go
+7 -2
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@@ -162,14 +162,19 @@ func (c *packCache) get(packID restic.ID, offset int64, length int, load func(of
}
if pack.data == nil {
releasePack := func() {
delete(c.reservedPacks, pack.id)
c.reservedCapacity -= length
c.allocatedCapacity -= length
}
wr := &bytesWriteSeeker{data: make([]byte, length)}
err = load(offset, length, wr)
if err != nil {
releasePack()
return nil, err
}
if wr.pos != length {
delete(c.reservedPacks, pack.id)
c.reservedCapacity -= len(pack.data)
releasePack()
return nil, errors.Errorf("invalid read size")
}
pack.data = wr.data