diff options
Diffstat (limited to 'src/rpc/blockchain.cpp')
| -rw-r--r-- | src/rpc/blockchain.cpp | 207 |
1 files changed, 176 insertions, 31 deletions
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp index 675d9ba904..1e04fcc01c 100644 --- a/src/rpc/blockchain.cpp +++ b/src/rpc/blockchain.cpp @@ -26,8 +26,20 @@ #include <boost/thread/thread.hpp> // boost::thread::interrupt +#include <mutex> +#include <condition_variable> using namespace std; +struct CUpdatedBlock +{ + uint256 hash; + int height; +}; + +static std::mutex cs_blockchange; +static std::condition_variable cond_blockchange; +static CUpdatedBlock latestblock; + extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, UniValue& entry); void ScriptPubKeyToJSON(const CScript& scriptPubKey, UniValue& out, bool fIncludeHex); @@ -101,7 +113,7 @@ UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool tx result.push_back(Pair("confirmations", confirmations)); result.push_back(Pair("strippedsize", (int)::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS))); result.push_back(Pair("size", (int)::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION))); - result.push_back(Pair("cost", (int)::GetBlockCost(block))); + result.push_back(Pair("weight", (int)::GetBlockWeight(block))); result.push_back(Pair("height", blockindex->nHeight)); result.push_back(Pair("version", block.nVersion)); result.push_back(Pair("versionHex", strprintf("%08x", block.nVersion))); @@ -168,6 +180,138 @@ UniValue getbestblockhash(const UniValue& params, bool fHelp) return chainActive.Tip()->GetBlockHash().GetHex(); } +void RPCNotifyBlockChange(bool ibd, const CBlockIndex * pindex) +{ + if(pindex) { + std::lock_guard<std::mutex> lock(cs_blockchange); + latestblock.hash = pindex->GetBlockHash(); + latestblock.height = pindex->nHeight; + } + cond_blockchange.notify_all(); +} + +UniValue waitfornewblock(const UniValue& params, bool fHelp) +{ + if (fHelp || params.size() > 1) + throw runtime_error( + "waitfornewblock\n" + "\nWaits for a specific new block and returns useful info about it.\n" + "\nReturns the current block on timeout or exit.\n" + "\nArguments:\n" + "1. timeout (milliseconds) (int, optional, default=false)\n" + "\nResult::\n" + "{ (json object)\n" + " \"hash\" : { (string) The blockhash\n" + " \"height\" : { (int) Block height\n" + "}\n" + "\nExamples\n" + + HelpExampleCli("waitfornewblock", "1000") + + HelpExampleRpc("waitfornewblock", "1000") + ); + int timeout = 0; + if (params.size() > 0) + timeout = params[0].get_int(); + + CUpdatedBlock block; + { + std::unique_lock<std::mutex> lock(cs_blockchange); + block = latestblock; + if(timeout) + cond_blockchange.wait_for(lock, std::chrono::milliseconds(timeout), [&block]{return latestblock.height != block.height || latestblock.hash != block.hash || !IsRPCRunning(); }); + else + cond_blockchange.wait(lock, [&block]{return latestblock.height != block.height || latestblock.hash != block.hash || !IsRPCRunning(); }); + block = latestblock; + } + UniValue ret(UniValue::VOBJ); + ret.push_back(Pair("hash", block.hash.GetHex())); + ret.push_back(Pair("height", block.height)); + return ret; +} + +UniValue waitforblock(const UniValue& params, bool fHelp) +{ + if (fHelp || params.size() < 1 || params.size() > 2) + throw runtime_error( + "waitforblock\n" + "\nWaits for a specific new block and returns useful info about it.\n" + "\nReturns the current block on timeout or exit.\n" + "\nArguments:\n" + "1. blockhash to wait for (string)\n" + "2. timeout (milliseconds) (int, optional, default=false)\n" + "\nResult::\n" + "{ (json object)\n" + " \"hash\" : { (string) The blockhash\n" + " \"height\" : { (int) Block height\n" + "}\n" + "\nExamples\n" + + HelpExampleCli("waitforblock", "\"0000000000079f8ef3d2c688c244eb7a4570b24c9ed7b4a8c619eb02596f8862\", 1000") + + HelpExampleRpc("waitforblock", "\"0000000000079f8ef3d2c688c244eb7a4570b24c9ed7b4a8c619eb02596f8862\", 1000") + ); + int timeout = 0; + + uint256 hash = uint256S(params[0].get_str()); + + if (params.size() > 1) + timeout = params[1].get_int(); + + CUpdatedBlock block; + { + std::unique_lock<std::mutex> lock(cs_blockchange); + if(timeout) + cond_blockchange.wait_for(lock, std::chrono::milliseconds(timeout), [&hash]{return latestblock.hash == hash || !IsRPCRunning();}); + else + cond_blockchange.wait(lock, [&hash]{return latestblock.hash == hash || !IsRPCRunning(); }); + block = latestblock; + } + + UniValue ret(UniValue::VOBJ); + ret.push_back(Pair("hash", block.hash.GetHex())); + ret.push_back(Pair("height", block.height)); + return ret; +} + +UniValue waitforblockheight(const UniValue& params, bool fHelp) +{ + if (fHelp || params.size() < 1 || params.size() > 2) + throw runtime_error( + "waitforblock\n" + "\nWaits for (at least) block height and returns the height and hash\n" + "\nof the current tip.\n" + "\nReturns the current block on timeout or exit.\n" + "\nArguments:\n" + "1. block height to wait for (int)\n" + "2. timeout (milliseconds) (int, optional, default=false)\n" + "\nResult::\n" + "{ (json object)\n" + " \"hash\" : { (string) The blockhash\n" + " \"height\" : { (int) Block height\n" + "}\n" + "\nExamples\n" + + HelpExampleCli("waitforblockheight", "\"100\", 1000") + + HelpExampleRpc("waitforblockheight", "\"100\", 1000") + ); + int timeout = 0; + + int height = params[0].get_int(); + + if (params.size() > 1) + timeout = params[1].get_int(); + + CUpdatedBlock block; + { + std::unique_lock<std::mutex> lock(cs_blockchange); + if(timeout) + cond_blockchange.wait_for(lock, std::chrono::milliseconds(timeout), [&height]{return latestblock.height >= height || !IsRPCRunning();}); + else + cond_blockchange.wait(lock, [&height]{return latestblock.height >= height || !IsRPCRunning(); }); + block = latestblock; + } + UniValue ret(UniValue::VOBJ); + ret.push_back(Pair("hash", block.hash.GetHex())); + ret.push_back(Pair("height", block.height)); + return ret; +} + UniValue getdifficulty(const UniValue& params, bool fHelp) { if (fHelp || params.size() != 0) @@ -353,10 +497,10 @@ UniValue getmempoolancestors(const UniValue& params, bool fHelp) UniValue o(UniValue::VOBJ); BOOST_FOREACH(CTxMemPool::txiter ancestorIt, setAncestors) { const CTxMemPoolEntry &e = *ancestorIt; - const uint256& hash = e.GetTx().GetHash(); + const uint256& _hash = e.GetTx().GetHash(); UniValue info(UniValue::VOBJ); entryToJSON(info, e); - o.push_back(Pair(hash.ToString(), info)); + o.push_back(Pair(_hash.ToString(), info)); } return o; } @@ -417,10 +561,10 @@ UniValue getmempooldescendants(const UniValue& params, bool fHelp) UniValue o(UniValue::VOBJ); BOOST_FOREACH(CTxMemPool::txiter descendantIt, setDescendants) { const CTxMemPoolEntry &e = *descendantIt; - const uint256& hash = e.GetTx().GetHash(); + const uint256& _hash = e.GetTx().GetHash(); UniValue info(UniValue::VOBJ); entryToJSON(info, e); - o.push_back(Pair(hash.ToString(), info)); + o.push_back(Pair(_hash.ToString(), info)); } return o; } @@ -559,7 +703,7 @@ UniValue getblock(const UniValue& params, bool fHelp) " \"confirmations\" : n, (numeric) The number of confirmations, or -1 if the block is not on the main chain\n" " \"size\" : n, (numeric) The block size\n" " \"strippedsize\" : n, (numeric) The block size excluding witness data\n" - " \"cost\" : n (numeric) The block cost\n" + " \"weight\" : n (numeric) The block weight (BIP 141)\n" " \"height\" : n, (numeric) The block height or index\n" " \"version\" : n, (numeric) The block version\n" " \"versionHex\" : \"00000000\", (string) The block version formatted in hexadecimal\n" @@ -632,7 +776,7 @@ struct CCoinsStats //! Calculate statistics about the unspent transaction output set static bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats) { - boost::scoped_ptr<CCoinsViewCursor> pcursor(view->Cursor()); + std::unique_ptr<CCoinsViewCursor> pcursor(view->Cursor()); CHashWriter ss(SER_GETHASH, PROTOCOL_VERSION); stats.hashBlock = pcursor->GetBestBlock(); @@ -704,6 +848,8 @@ UniValue gettxoutsetinfo(const UniValue& params, bool fHelp) ret.push_back(Pair("bytes_serialized", (int64_t)stats.nSerializedSize)); ret.push_back(Pair("hash_serialized", stats.hashSerialized.GetHex())); ret.push_back(Pair("total_amount", ValueFromAmount(stats.nTotalAmount))); + } else { + throw JSONRPCError(RPC_INTERNAL_ERROR, "Unable to read UTXO set"); } return ret; } @@ -817,22 +963,23 @@ UniValue verifychain(const UniValue& params, bool fHelp) } /** Implementation of IsSuperMajority with better feedback */ -static UniValue SoftForkMajorityDesc(int minVersion, CBlockIndex* pindex, int nRequired, const Consensus::Params& consensusParams) +static UniValue SoftForkMajorityDesc(int version, CBlockIndex* pindex, const Consensus::Params& consensusParams) { - int nFound = 0; - CBlockIndex* pstart = pindex; - for (int i = 0; i < consensusParams.nMajorityWindow && pstart != NULL; i++) + UniValue rv(UniValue::VOBJ); + bool activated = false; + switch(version) { - if (pstart->nVersion >= minVersion) - ++nFound; - pstart = pstart->pprev; + case 2: + activated = pindex->nHeight >= consensusParams.BIP34Height; + break; + case 3: + activated = pindex->nHeight >= consensusParams.BIP66Height; + break; + case 4: + activated = pindex->nHeight >= consensusParams.BIP65Height; + break; } - - UniValue rv(UniValue::VOBJ); - rv.push_back(Pair("status", nFound >= nRequired)); - rv.push_back(Pair("found", nFound)); - rv.push_back(Pair("required", nRequired)); - rv.push_back(Pair("window", consensusParams.nMajorityWindow)); + rv.push_back(Pair("status", activated)); return rv; } @@ -841,8 +988,7 @@ static UniValue SoftForkDesc(const std::string &name, int version, CBlockIndex* UniValue rv(UniValue::VOBJ); rv.push_back(Pair("id", name)); rv.push_back(Pair("version", version)); - rv.push_back(Pair("enforce", SoftForkMajorityDesc(version, pindex, consensusParams.nMajorityEnforceBlockUpgrade, consensusParams))); - rv.push_back(Pair("reject", SoftForkMajorityDesc(version, pindex, consensusParams.nMajorityRejectBlockOutdated, consensusParams))); + rv.push_back(Pair("reject", SoftForkMajorityDesc(version, pindex, consensusParams))); return rv; } @@ -897,13 +1043,9 @@ UniValue getblockchaininfo(const UniValue& params, bool fHelp) " {\n" " \"id\": \"xxxx\", (string) name of softfork\n" " \"version\": xx, (numeric) block version\n" - " \"enforce\": { (object) progress toward enforcing the softfork rules for new-version blocks\n" + " \"reject\": { (object) progress toward rejecting pre-softfork blocks\n" " \"status\": xx, (boolean) true if threshold reached\n" - " \"found\": xx, (numeric) number of blocks with the new version found\n" - " \"required\": xx, (numeric) number of blocks required to trigger\n" - " \"window\": xx, (numeric) maximum size of examined window of recent blocks\n" " },\n" - " \"reject\": { ... } (object) progress toward rejecting pre-softfork blocks (same fields as \"enforce\")\n" " }, ...\n" " ],\n" " \"bip9_softforks\": { (object) status of BIP9 softforks in progress\n" @@ -1137,7 +1279,7 @@ UniValue invalidateblock(const UniValue& params, bool fHelp) } if (state.IsValid()) { - ActivateBestChain(state, Params()); + ActivateBestChain(state, Params(), NULL, g_connman.get()); } if (!state.IsValid()) { @@ -1175,7 +1317,7 @@ UniValue reconsiderblock(const UniValue& params, bool fHelp) } CValidationState state; - ActivateBestChain(state, Params()); + ActivateBestChain(state, Params(), NULL, g_connman.get()); if (!state.IsValid()) { throw JSONRPCError(RPC_DATABASE_ERROR, state.GetRejectReason()); @@ -1207,10 +1349,13 @@ static const CRPCCommand commands[] = /* Not shown in help */ { "hidden", "invalidateblock", &invalidateblock, true }, { "hidden", "reconsiderblock", &reconsiderblock, true }, + { "hidden", "waitfornewblock", &waitfornewblock, true }, + { "hidden", "waitforblock", &waitforblock, true }, + { "hidden", "waitforblockheight", &waitforblockheight, true }, }; -void RegisterBlockchainRPCCommands(CRPCTable &tableRPC) +void RegisterBlockchainRPCCommands(CRPCTable &t) { for (unsigned int vcidx = 0; vcidx < ARRAYLEN(commands); vcidx++) - tableRPC.appendCommand(commands[vcidx].name, &commands[vcidx]); + t.appendCommand(commands[vcidx].name, &commands[vcidx]); } |