From 6b04508e37c5dd18cec1cd61cc4356bd208aa991 Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Tue, 31 Mar 2015 20:28:28 -0700
Subject: Introduce separate 'generate' RPC call

---
 src/rpcmining.cpp | 91 +++++++++++++++++++++++++------------------------------
 1 file changed, 42 insertions(+), 49 deletions(-)

(limited to 'src/rpcmining.cpp')

diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp
index fcba7e222d..49c5c3ca58 100644
--- a/src/rpcmining.cpp
+++ b/src/rpcmining.cpp
@@ -113,6 +113,45 @@ Value getgenerate(const Array& params, bool fHelp)
     return GetBoolArg("-gen", false);
 }
 
+Value generate(const Array& params, bool fHelp)
+{
+    if (fHelp || params.size() < 1 || params.size() > 1)
+        throw runtime_error(
+            "generate numblocks\n"
+            "\nMine blocks immediately (before the RPC call returns)\n"
+            "1. numblocks    (numeric) How many blocks are generated immediately.\n"
+            "\nResult\n"
+            "[ blockhashes ]     (array) hashes of blocks generated\n"
+            "\nExamples:\n"
+            "\nGenerate 11 blocks\n"
+            + HelpExampleCli("generate", "11")
+        );
+
+    if (pwalletMain == NULL)
+        throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found (disabled)");
+
+    int nHeightStart = 0;
+    int nHeightEnd = 0;
+    int nHeight = 0;
+    int nGenerate = params[0].get_int();
+
+    {   // Don't keep cs_main locked
+        LOCK(cs_main);
+        nHeightStart = chainActive.Height();
+        nHeight = nHeightStart;
+        nHeightEnd = nHeightStart+nGenerate;
+    }
+    Array blockHashes;
+    while (nHeight < nHeightEnd) {
+        uint256 hash;
+        if (!MineBlock(pwalletMain, hash))
+            throw JSONRPCError(RPC_INTERNAL_ERROR, "Wallet keypool empty");
+
+        ++nHeight;
+        blockHashes.push_back(hash.GetHex());
+    }
+    return blockHashes;
+}
 
 Value setgenerate(const Array& params, bool fHelp)
 {
@@ -125,9 +164,6 @@ Value setgenerate(const Array& params, bool fHelp)
             "\nArguments:\n"
             "1. generate         (boolean, required) Set to true to turn on generation, off to turn off.\n"
             "2. genproclimit     (numeric, optional) Set the processor limit for when generation is on. Can be -1 for unlimited.\n"
-            "                    Note: in -regtest mode, genproclimit controls how many blocks are generated immediately.\n"
-            "\nResult\n"
-            "[ blockhashes ]     (array, -regtest only) hashes of blocks generated\n"
             "\nExamples:\n"
             "\nSet the generation on with a limit of one processor\n"
             + HelpExampleCli("setgenerate", "true 1") +
@@ -154,52 +190,9 @@ Value setgenerate(const Array& params, bool fHelp)
             fGenerate = false;
     }
 
-    // -regtest mode: don't return until nGenProcLimit blocks are generated
-    if (fGenerate && Params().MineBlocksOnDemand())
-    {
-        int nHeightStart = 0;
-        int nHeightEnd = 0;
-        int nHeight = 0;
-        int nGenerate = (nGenProcLimit > 0 ? nGenProcLimit : 1);
-        CReserveKey reservekey(pwalletMain);
-
-        {   // Don't keep cs_main locked
-            LOCK(cs_main);
-            nHeightStart = chainActive.Height();
-            nHeight = nHeightStart;
-            nHeightEnd = nHeightStart+nGenerate;
-        }
-        unsigned int nExtraNonce = 0;
-        Array blockHashes;
-        while (nHeight < nHeightEnd)
-        {
-            auto_ptr<CBlockTemplate> pblocktemplate(CreateNewBlockWithKey(reservekey));
-            if (!pblocktemplate.get())
-                throw JSONRPCError(RPC_INTERNAL_ERROR, "Wallet keypool empty");
-            CBlock *pblock = &pblocktemplate->block;
-            {
-                LOCK(cs_main);
-                IncrementExtraNonce(pblock, chainActive.Tip(), nExtraNonce);
-            }
-            while (!CheckProofOfWork(pblock->GetHash(), pblock->nBits, Params().GetConsensus())) {
-                // Yes, there is a chance every nonce could fail to satisfy the -regtest
-                // target -- 1 in 2^(2^32). That ain't gonna happen.
-                ++pblock->nNonce;
-            }
-            CValidationState state;
-            if (!ProcessNewBlock(state, NULL, pblock))
-                throw JSONRPCError(RPC_INTERNAL_ERROR, "ProcessNewBlock, block not accepted");
-            ++nHeight;
-            blockHashes.push_back(pblock->GetHash().GetHex());
-        }
-        return blockHashes;
-    }
-    else // Not -regtest: start generate thread, return immediately
-    {
-        mapArgs["-gen"] = (fGenerate ? "1" : "0");
-        mapArgs ["-genproclimit"] = itostr(nGenProcLimit);
-        GenerateBitcoins(fGenerate, pwalletMain, nGenProcLimit);
-    }
+    mapArgs["-gen"] = (fGenerate ? "1" : "0");
+    mapArgs ["-genproclimit"] = itostr(nGenProcLimit);
+    GenerateBitcoins(fGenerate, pwalletMain, nGenProcLimit);
 
     return Value::null;
 }
-- 
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