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-rw-r--r--src/rpc/blockchain.cpp140
1 files changed, 128 insertions, 12 deletions
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 7ba66736a6..946152d9aa 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -15,6 +15,8 @@
#include <hash.h>
#include <index/blockfilterindex.h>
#include <node/coinstats.h>
+#include <node/context.h>
+#include <node/utxo_snapshot.h>
#include <policy/feerate.h>
#include <policy/policy.h>
#include <policy/rbf.h>
@@ -38,8 +40,6 @@
#include <univalue.h>
-#include <boost/thread/thread.hpp> // boost::thread::interrupt
-
#include <condition_variable>
#include <memory>
#include <mutex>
@@ -54,11 +54,20 @@ static Mutex cs_blockchange;
static std::condition_variable cond_blockchange;
static CUpdatedBlock latestblock;
+CTxMemPool& EnsureMemPool()
+{
+ CHECK_NONFATAL(g_rpc_node);
+ if (!g_rpc_node->mempool) {
+ throw JSONRPCError(RPC_CLIENT_MEMPOOL_DISABLED, "Mempool disabled or instance not found");
+ }
+ return *g_rpc_node->mempool;
+}
+
/* Calculate the difficulty for a given block index.
*/
double GetDifficulty(const CBlockIndex* blockindex)
{
- assert(blockindex);
+ CHECK_NONFATAL(blockindex);
int nShift = (blockindex->nBits >> 24) & 0xff;
double dDiff =
@@ -957,7 +966,7 @@ static UniValue pruneblockchain(const JSONRPCRequest& request)
PruneBlockFilesManual(height);
const CBlockIndex* block = ::ChainActive().Tip();
- assert(block);
+ CHECK_NONFATAL(block);
while (block->pprev && (block->pprev->nStatus & BLOCK_HAVE_DATA)) {
block = block->pprev;
}
@@ -1252,7 +1261,7 @@ UniValue getblockchaininfo(const JSONRPCRequest& request)
obj.pushKV("pruned", fPruneMode);
if (fPruneMode) {
const CBlockIndex* block = tip;
- assert(block);
+ CHECK_NONFATAL(block);
while (block->pprev && (block->pprev->nStatus & BLOCK_HAVE_DATA)) {
block = block->pprev;
}
@@ -1598,7 +1607,7 @@ static UniValue getchaintxstats(const JSONRPCRequest& request)
}
}
- assert(pindex != nullptr);
+ CHECK_NONFATAL(pindex != nullptr);
if (request.params[0].isNull()) {
blockcount = std::max(0, std::min(blockcount, pindex->nHeight - 1));
@@ -1771,7 +1780,7 @@ static UniValue getblockstats(const JSONRPCRequest& request)
}
}
- assert(pindex != nullptr);
+ CHECK_NONFATAL(pindex != nullptr);
std::set<std::string> stats;
if (!request.params[1].isNull()) {
@@ -1871,7 +1880,7 @@ static UniValue getblockstats(const JSONRPCRequest& request)
}
CAmount txfee = tx_total_in - tx_total_out;
- assert(MoneyRange(txfee));
+ CHECK_NONFATAL(MoneyRange(txfee));
if (do_medianfee) {
fee_array.push_back(txfee);
}
@@ -1975,7 +1984,6 @@ bool FindScriptPubKey(std::atomic<int>& scan_progress, const std::atomic<bool>&
Coin coin;
if (!cursor->GetKey(key) || !cursor->GetValue(coin)) return false;
if (++count % 8192 == 0) {
- boost::this_thread::interruption_point();
if (should_abort) {
// allow to abort the scan via the abort reference
return false;
@@ -2008,7 +2016,7 @@ public:
explicit CoinsViewScanReserver() : m_could_reserve(false) {}
bool reserve() {
- assert (!m_could_reserve);
+ CHECK_NONFATAL(!m_could_reserve);
std::lock_guard<std::mutex> lock(g_utxosetscan);
if (g_scan_in_progress) {
return false;
@@ -2135,9 +2143,9 @@ UniValue scantxoutset(const JSONRPCRequest& request)
LOCK(cs_main);
::ChainstateActive().ForceFlushStateToDisk();
pcursor = std::unique_ptr<CCoinsViewCursor>(::ChainstateActive().CoinsDB().Cursor());
- assert(pcursor);
+ CHECK_NONFATAL(pcursor);
tip = ::ChainActive().Tip();
- assert(tip);
+ CHECK_NONFATAL(tip);
}
bool res = FindScriptPubKey(g_scan_progress, g_should_abort_scan, count, pcursor.get(), needles, coins);
result.pushKV("success", res);
@@ -2245,6 +2253,113 @@ static UniValue getblockfilter(const JSONRPCRequest& request)
return ret;
}
+/**
+ * Serialize the UTXO set to a file for loading elsewhere.
+ *
+ * @see SnapshotMetadata
+ */
+UniValue dumptxoutset(const JSONRPCRequest& request)
+{
+ RPCHelpMan{
+ "dumptxoutset",
+ "\nWrite the serialized UTXO set to disk.\n"
+ "Incidentally flushes the latest coinsdb (leveldb) to disk.\n",
+ {
+ {"path",
+ RPCArg::Type::STR,
+ RPCArg::Optional::NO,
+ /* default_val */ "",
+ "path to the output file. If relative, will be prefixed by datadir."},
+ },
+ RPCResult{
+ "{\n"
+ " \"coins_written\": n, (numeric) the number of coins written in the snapshot\n"
+ " \"base_hash\": \"...\", (string) the hash of the base of the snapshot\n"
+ " \"base_height\": n, (string) the height of the base of the snapshot\n"
+ " \"path\": \"...\" (string) the absolute path that the snapshot was written to\n"
+ "]\n"
+ },
+ RPCExamples{
+ HelpExampleCli("dumptxoutset", "utxo.dat")
+ }
+ }.Check(request);
+
+ fs::path path = fs::absolute(request.params[0].get_str(), GetDataDir());
+ // Write to a temporary path and then move into `path` on completion
+ // to avoid confusion due to an interruption.
+ fs::path temppath = fs::absolute(request.params[0].get_str() + ".incomplete", GetDataDir());
+
+ if (fs::exists(path)) {
+ throw JSONRPCError(
+ RPC_INVALID_PARAMETER,
+ path.string() + " already exists. If you are sure this is what you want, "
+ "move it out of the way first");
+ }
+
+ FILE* file{fsbridge::fopen(temppath, "wb")};
+ CAutoFile afile{file, SER_DISK, CLIENT_VERSION};
+ std::unique_ptr<CCoinsViewCursor> pcursor;
+ CCoinsStats stats;
+ CBlockIndex* tip;
+
+ {
+ // We need to lock cs_main to ensure that the coinsdb isn't written to
+ // between (i) flushing coins cache to disk (coinsdb), (ii) getting stats
+ // based upon the coinsdb, and (iii) constructing a cursor to the
+ // coinsdb for use below this block.
+ //
+ // Cursors returned by leveldb iterate over snapshots, so the contents
+ // of the pcursor will not be affected by simultaneous writes during
+ // use below this block.
+ //
+ // See discussion here:
+ // https://github.com/bitcoin/bitcoin/pull/15606#discussion_r274479369
+ //
+ LOCK(::cs_main);
+
+ ::ChainstateActive().ForceFlushStateToDisk();
+
+ if (!GetUTXOStats(&::ChainstateActive().CoinsDB(), stats)) {
+ throw JSONRPCError(RPC_INTERNAL_ERROR, "Unable to read UTXO set");
+ }
+
+ pcursor = std::unique_ptr<CCoinsViewCursor>(::ChainstateActive().CoinsDB().Cursor());
+ tip = LookupBlockIndex(stats.hashBlock);
+ CHECK_NONFATAL(tip);
+ }
+
+ SnapshotMetadata metadata{tip->GetBlockHash(), stats.coins_count, tip->nChainTx};
+
+ afile << metadata;
+
+ COutPoint key;
+ Coin coin;
+ unsigned int iter{0};
+
+ while (pcursor->Valid()) {
+ if (iter % 5000 == 0 && !IsRPCRunning()) {
+ throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Shutting down");
+ }
+ ++iter;
+ if (pcursor->GetKey(key) && pcursor->GetValue(coin)) {
+ afile << key;
+ afile << coin;
+ }
+
+ pcursor->Next();
+ }
+
+ afile.fclose();
+ fs::rename(temppath, path);
+
+ UniValue result(UniValue::VOBJ);
+ result.pushKV("coins_written", stats.coins_count);
+ result.pushKV("base_hash", tip->GetBlockHash().ToString());
+ result.pushKV("base_height", tip->nHeight);
+ result.pushKV("path", path.string());
+ return result;
+}
+
// clang-format off
static const CRPCCommand commands[] =
{ // category name actor (function) argNames
@@ -2281,6 +2396,7 @@ static const CRPCCommand commands[] =
{ "hidden", "waitforblock", &waitforblock, {"blockhash","timeout"} },
{ "hidden", "waitforblockheight", &waitforblockheight, {"height","timeout"} },
{ "hidden", "syncwithvalidationinterfacequeue", &syncwithvalidationinterfacequeue, {} },
+ { "hidden", "dumptxoutset", &dumptxoutset, {"path"} },
};
// clang-format on
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-05 23:14:39 +0000