Merge #10095: refactor: Move GetDifficulty out of `rpc/server.h`

f885b67 refactor: Make rest.cpp dependency on `*toJSON` in `blockchain.cpp` explicit (Wladimir J. van der Laan)
8d8f28d refactor: Move RPCNotifyBlockChange out of `rpc/server.h` (Wladimir J. van der Laan)
e6dcfee refactor: Move GetDifficulty out of `rpc/server.h` (Wladimir J. van der Laan)

Tree-SHA512: fc2656611d18442f2fddba5ac1554d958151f6785c2039afdfc36735d7e71592d9686ff6cc7b2ad95180071d7514470e62c52d697c5a1e88f851bddaf5942edb

5 files changed, 46 insertions, 11 deletions

diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 96254a8cb9..f158065e76 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -3,6 +3,8 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
+#include "rpc/blockchain.h"
+
 #include "amount.h"
 #include "chain.h"
 #include "chainparams.h"
@@ -42,13 +44,6 @@ static CUpdatedBlock latestblock;
 extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, UniValue& entry);
 void ScriptPubKeyToJSON(const CScript& scriptPubKey, UniValue& out, bool fIncludeHex);
 
-/**
- * Get the difficulty of the net wrt to the given block index, or the chain tip if
- * not provided.
- *
- * @return A floating point number that is a multiple of the main net minimum
- * difficulty (4295032833 hashes).
- */
 double GetDifficulty(const CBlockIndex* blockindex)
 {
     if (blockindex == NULL)
@@ -106,7 +101,7 @@ UniValue blockheaderToJSON(const CBlockIndex* blockindex)
     return result;
 }
 
-UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false)
+UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails)
 {
     UniValue result(UniValue::VOBJ);
     result.push_back(Pair("hash", blockindex->GetBlockHash().GetHex()));
@@ -383,7 +378,7 @@ void entryToJSON(UniValue &info, const CTxMemPoolEntry &e)
     info.push_back(Pair("depends", depends));
 }
 
-UniValue mempoolToJSON(bool fVerbose = false)
+UniValue mempoolToJSON(bool fVerbose)
 {
     if (fVerbose)
     {
diff --git a/src/rpc/blockchain.h b/src/rpc/blockchain.h
new file mode 100644
index 0000000000..c021441b0a
--- /dev/null
+++ b/src/rpc/blockchain.h
@@ -0,0 +1,40 @@
+// Copyright (c) 2017 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_RPC_BLOCKCHAIN_H
+#define BITCOIN_RPC_BLOCKCHAIN_H
+
+class CBlock;
+class CBlockIndex;
+class CScript;
+class CTransaction;
+class uint256;
+class UniValue;
+
+/**
+ * Get the difficulty of the net wrt to the given block index, or the chain tip if
+ * not provided.
+ *
+ * @return A floating point number that is a multiple of the main net minimum
+ * difficulty (4295032833 hashes).
+ */
+double GetDifficulty(const CBlockIndex* blockindex = nullptr);
+
+/** Callback for when block tip changed. */
+void RPCNotifyBlockChange(bool ibd, const CBlockIndex *);
+
+/** Block description to JSON */
+UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false);
+
+/** Mempool information to JSON */
+UniValue mempoolInfoToJSON();
+
+/** Mempool to JSON */
+UniValue mempoolToJSON(bool fVerbose = false);
+
+/** Block header to JSON */
+UniValue blockheaderToJSON(const CBlockIndex* blockindex);
+
+#endif
+
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
index 4db8ffaa7d..b823c159d3 100644
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -16,6 +16,7 @@
 #include "miner.h"
 #include "net.h"
 #include "pow.h"
+#include "rpc/blockchain.h"
 #include "rpc/server.h"
 #include "txmempool.h"
 #include "util.h"
diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp
index de1bbe62e5..24c5eeffe9 100644
--- a/src/rpc/misc.cpp
+++ b/src/rpc/misc.cpp
@@ -9,6 +9,7 @@
 #include "validation.h"
 #include "net.h"
 #include "netbase.h"
+#include "rpc/blockchain.h"
 #include "rpc/server.h"
 #include "timedata.h"
 #include "util.h"
diff --git a/src/rpc/server.h b/src/rpc/server.h
index de14c7ed3e..34a9d3c24c 100644
--- a/src/rpc/server.h
+++ b/src/rpc/server.h
@@ -191,7 +191,6 @@ extern std::vector<unsigned char> ParseHexO(const UniValue& o, std::string strKe
 
 extern CAmount AmountFromValue(const UniValue& value);
 extern UniValue ValueFromAmount(const CAmount& amount);
-extern double GetDifficulty(const CBlockIndex* blockindex = NULL);
 extern std::string HelpExampleCli(const std::string& methodname, const std::string& args);
 extern std::string HelpExampleRpc(const std::string& methodname, const std::string& args);
 
@@ -199,7 +198,6 @@ bool StartRPC();
 void InterruptRPC();
 void StopRPC();
 std::string JSONRPCExecBatch(const UniValue& vReq);
-void RPCNotifyBlockChange(bool ibd, const CBlockIndex *);
 
 // Retrieves any serialization flags requested in command line argument
 int RPCSerializationFlags();