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-rw-r--r--src/coins.cpp17
-rw-r--r--src/coins.h25
-rw-r--r--src/init.cpp31
3 files changed, 48 insertions, 25 deletions
diff --git a/src/coins.cpp b/src/coins.cpp
index 3ef9e0463c..6b85edd01a 100644
--- a/src/coins.cpp
+++ b/src/coins.cpp
@@ -5,6 +5,7 @@
#include <coins.h>
#include <consensus/consensus.h>
+#include <logging.h>
#include <random.h>
#include <version.h>
@@ -258,3 +259,19 @@ const Coin& AccessByTxid(const CCoinsViewCache& view, const uint256& txid)
}
return coinEmpty;
}
+
+bool CCoinsViewErrorCatcher::GetCoin(const COutPoint &outpoint, Coin &coin) const {
+ try {
+ return CCoinsViewBacked::GetCoin(outpoint, coin);
+ } catch(const std::runtime_error& e) {
+ for (auto f : m_err_callbacks) {
+ f();
+ }
+ LogPrintf("Error reading from database: %s\n", e.what());
+ // Starting the shutdown sequence and returning false to the caller would be
+ // interpreted as 'entry not found' (as opposed to unable to read data), and
+ // could lead to invalid interpretation. Just exit immediately, as we can't
+ // continue anyway, and all writes should be atomic.
+ std::abort();
+ }
+}
diff --git a/src/coins.h b/src/coins.h
index 482e233e8c..dca1beabb6 100644
--- a/src/coins.h
+++ b/src/coins.h
@@ -17,6 +17,7 @@
#include <assert.h>
#include <stdint.h>
+#include <functional>
#include <unordered_map>
/**
@@ -315,4 +316,28 @@ void AddCoins(CCoinsViewCache& cache, const CTransaction& tx, int nHeight, bool
//! lookups to database, so it should be used with care.
const Coin& AccessByTxid(const CCoinsViewCache& cache, const uint256& txid);
+/**
+ * This is a minimally invasive approach to shutdown on LevelDB read errors from the
+ * chainstate, while keeping user interface out of the common library, which is shared
+ * between bitcoind, and bitcoin-qt and non-server tools.
+ *
+ * Writes do not need similar protection, as failure to write is handled by the caller.
+*/
+class CCoinsViewErrorCatcher final : public CCoinsViewBacked
+{
+public:
+ explicit CCoinsViewErrorCatcher(CCoinsView* view) : CCoinsViewBacked(view) {}
+
+ void AddReadErrCallback(std::function<void()> f) {
+ m_err_callbacks.emplace_back(std::move(f));
+ }
+
+ bool GetCoin(const COutPoint &outpoint, Coin &coin) const override;
+
+private:
+ /** A list of callbacks to execute upon leveldb read error. */
+ std::vector<std::function<void()>> m_err_callbacks;
+
+};
+
#endif // BITCOIN_COINS_H
diff --git a/src/init.cpp b/src/init.cpp
index 26b2f9d6c2..068b05286c 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -15,6 +15,7 @@
#include <blockfilter.h>
#include <chain.h>
#include <chainparams.h>
+#include <coins.h>
#include <compat/sanity.h>
#include <consensus/validation.h>
#include <fs.h>
@@ -146,31 +147,6 @@ NODISCARD static bool CreatePidFile()
// shutdown thing.
//
-/**
- * This is a minimally invasive approach to shutdown on LevelDB read errors from the
- * chainstate, while keeping user interface out of the common library, which is shared
- * between bitcoind, and bitcoin-qt and non-server tools.
-*/
-class CCoinsViewErrorCatcher final : public CCoinsViewBacked
-{
-public:
- explicit CCoinsViewErrorCatcher(CCoinsView* view) : CCoinsViewBacked(view) {}
- bool GetCoin(const COutPoint &outpoint, Coin &coin) const override {
- try {
- return CCoinsViewBacked::GetCoin(outpoint, coin);
- } catch(const std::runtime_error& e) {
- uiInterface.ThreadSafeMessageBox(_("Error reading from database, shutting down."), "", CClientUIInterface::MSG_ERROR);
- LogPrintf("Error reading from database: %s\n", e.what());
- // Starting the shutdown sequence and returning false to the caller would be
- // interpreted as 'entry not found' (as opposed to unable to read data), and
- // could lead to invalid interpretation. Just exit immediately, as we can't
- // continue anyway, and all writes should be atomic.
- abort();
- }
- }
- // Writes do not need similar protection, as failure to write is handled by the caller.
-};
-
static std::unique_ptr<CCoinsViewErrorCatcher> pcoinscatcher;
static std::unique_ptr<ECCVerifyHandle> globalVerifyHandle;
@@ -1544,6 +1520,11 @@ bool AppInitMain(InitInterfaces& interfaces)
pcoinsdbview.reset(new CCoinsViewDB(nCoinDBCache, false, fReset || fReindexChainState));
pcoinscatcher.reset(new CCoinsViewErrorCatcher(pcoinsdbview.get()));
+ pcoinscatcher->AddReadErrCallback([]() {
+ uiInterface.ThreadSafeMessageBox(
+ _("Error reading from database, shutting down."),
+ "", CClientUIInterface::MSG_ERROR);
+ });
// If necessary, upgrade from older database format.
// This is a no-op if we cleared the coinsviewdb with -reindex or -reindex-chainstate