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authorSuhas Daftuar <sdaftuar@gmail.com>2017-05-07 14:10:19 -0400
committerSuhas Daftuar <sdaftuar@chaincode.com>2017-09-05 15:05:28 -0400
commit0311836f6927aec4ba5687ea12af35df3c509682 (patch)
tree5d1b35310828f7299e039476a52146140f6bb0fc /src/init.cpp
parente0e3cbbf081b74ed5322176dcda081c64076fd21 (diff)
downloadbitcoin-0311836f6927aec4ba5687ea12af35df3c509682.tar.xz
Allow setting nMinimumChainWork on command line
Diffstat (limited to 'src/init.cpp')
-rw-r--r--src/init.cpp17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/init.cpp b/src/init.cpp
index 6114bbaa2d..6cacb9c8d5 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -354,6 +354,9 @@ std::string HelpMessage(HelpMessageMode mode)
strUsage += HelpMessageOpt("-maxorphantx=<n>", strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS));
strUsage += HelpMessageOpt("-maxmempool=<n>", strprintf(_("Keep the transaction memory pool below <n> megabytes (default: %u)"), DEFAULT_MAX_MEMPOOL_SIZE));
strUsage += HelpMessageOpt("-mempoolexpiry=<n>", strprintf(_("Do not keep transactions in the mempool longer than <n> hours (default: %u)"), DEFAULT_MEMPOOL_EXPIRY));
+ if (showDebug) {
+ strUsage += HelpMessageOpt("-minimumchainwork=<hex>", strprintf("Minimum work assumed to exist on a valid chain in hex (default: %s, testnet: %s)", defaultChainParams->GetConsensus().nMinimumChainWork.GetHex(), testnetChainParams->GetConsensus().nMinimumChainWork.GetHex()));
+ }
strUsage += HelpMessageOpt("-persistmempool", strprintf(_("Whether to save the mempool on shutdown and load on restart (default: %u)"), DEFAULT_PERSIST_MEMPOOL));
strUsage += HelpMessageOpt("-blockreconstructionextratxn=<n>", strprintf(_("Extra transactions to keep in memory for compact block reconstructions (default: %u)"), DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN));
strUsage += HelpMessageOpt("-par=<n>", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"),
@@ -970,6 +973,20 @@ bool AppInitParameterInteraction()
else
LogPrintf("Validating signatures for all blocks.\n");
+ if (gArgs.IsArgSet("-minimumchainwork")) {
+ const std::string minChainWorkStr = gArgs.GetArg("-minimumchainwork", "");
+ if (!IsHexNumber(minChainWorkStr)) {
+ return InitError(strprintf("Invalid non-hex (%s) minimum chain work value specified", minChainWorkStr));
+ }
+ nMinimumChainWork = UintToArith256(uint256S(minChainWorkStr));
+ } else {
+ nMinimumChainWork = UintToArith256(chainparams.GetConsensus().nMinimumChainWork);
+ }
+ LogPrintf("Setting nMinimumChainWork=%s\n", nMinimumChainWork.GetHex());
+ if (nMinimumChainWork < UintToArith256(chainparams.GetConsensus().nMinimumChainWork)) {
+ LogPrintf("Warning: nMinimumChainWork set below default value of %s\n", chainparams.GetConsensus().nMinimumChainWork.GetHex());
+ }
+
// mempool limits
int64_t nMempoolSizeMax = gArgs.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
int64_t nMempoolSizeMin = gArgs.GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT) * 1000 * 40;