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authorJames O'Beirne <james.obeirne@gmail.com>2019-03-27 12:07:52 -0400
committerJames O'Beirne <james.obeirne@gmail.com>2019-05-16 09:06:54 -0400
commit3ccbc376dd313fb7666471f24f6d9370914d00f3 (patch)
tree282912702ec4b1769a97ebc6f2c839525034e601 /src/validation.h
parent4d6688603b8c8df854d52df464e157d0a6e7bde6 (diff)
refactoring: FlushStateToDisk -> CChainState
Also renames global methods for clarity: - ::FlushStateToDisk() -> CChainState::ForceFlushStateToDisk() - This performs an unconditional flush. - ::PruneAndFlush() -> CChainState::PruneAndFlush()
Diffstat (limited to 'src/validation.h')
-rw-r--r--src/validation.h35
1 files changed, 31 insertions, 4 deletions
diff --git a/src/validation.h b/src/validation.h
index 34217b3454..3eece8d2b9 100644
--- a/src/validation.h
+++ b/src/validation.h
@@ -31,6 +31,7 @@
#include <utility>
#include <vector>
+class CChainState;
class CBlockIndex;
class CBlockTreeDB;
class CBlockUndo;
@@ -277,10 +278,6 @@ void PruneOneBlockFile(const int fileNumber) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
*/
void UnlinkPrunedFiles(const std::set<int>& setFilesToPrune);
-/** Flush all state, indexes and buffers to disk. */
-void FlushStateToDisk();
-/** Prune block files and flush state to disk. */
-void PruneAndFlush();
/** Prune block files up to a given height */
void PruneBlockFilesManual(int nManualPruneHeight);
@@ -432,6 +429,14 @@ enum DisconnectResult
class ConnectTrace;
+/** @see CChainState::FlushStateToDisk */
+enum class FlushStateMode {
+ NONE,
+ IF_NEEDED,
+ PERIODIC,
+ ALWAYS
+};
+
struct CBlockIndexWorkComparator
{
bool operator()(const CBlockIndex *pa, const CBlockIndex *pb) const;
@@ -508,6 +513,28 @@ public:
bool LoadBlockIndex(const Consensus::Params& consensus_params, CBlockTreeDB& blocktree) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
+ /**
+ * Update the on-disk chain state.
+ * The caches and indexes are flushed depending on the mode we're called with
+ * if they're too large, if it's been a while since the last write,
+ * or always and in all cases if we're in prune mode and are deleting files.
+ *
+ * If FlushStateMode::NONE is used, then FlushStateToDisk(...) won't do anything
+ * besides checking if we need to prune.
+ */
+ bool FlushStateToDisk(
+ const CChainParams& chainparams,
+ CValidationState &state,
+ FlushStateMode mode,
+ int nManualPruneHeight = 0);
+
+ //! Unconditionally flush all changes to disk.
+ void ForceFlushStateToDisk();
+
+ //! Prune blockfiles from the disk if necessary and then flush chainstate changes
+ //! if we pruned.
+ void PruneAndFlush();
+
bool ActivateBestChain(CValidationState &state, const CChainParams& chainparams, std::shared_ptr<const CBlock> pblock) LOCKS_EXCLUDED(cs_main);
/**