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Fix laziness while streaming blocks #2532

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Aug 24, 2020
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Fix laziness while streaming blocks #2532

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5 changes: 5 additions & 0 deletions ouroboros-consensus/src/Ouroboros/Consensus/Storage/LedgerDB/InMemory.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -612,6 +612,11 @@ prune db@LedgerDB{..} =
toPrune :: Int
toPrune = ledgerDbCountToPrune ledgerDbParams (Seq.length ledgerDbBlocks)

-- NOTE: we must inline 'prune' otherwise we get unexplained thunks in
-- 'LedgerDB' and thus a space leak. Alternatively, we could disable the
-- @-fstrictness@ optimisation (enabled by default for -O1). See #2532.
{-# INLINE prune #-}

-- | Push an updated ledger state
pushLedgerState :: l -- ^ Updated ledger state
-> r -- ^ Reference to the applied block
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