Report status of chain tips
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3 changed files with 34 additions and 1 deletions
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@ -20,6 +20,7 @@ if [ "x${ENABLE_BITCOIND}${ENABLE_UTILS}${ENABLE_WALLET}" = "x111" ]; then
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${BUILDDIR}/qa/rpc-tests/listtransactions.py --srcdir "${BUILDDIR}/src"
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${BUILDDIR}/qa/rpc-tests/txn_doublespend.py --srcdir "${BUILDDIR}/src"
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${BUILDDIR}/qa/rpc-tests/txn_doublespend.py --mineblock --srcdir "${BUILDDIR}/src"
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${BUILDDIR}/qa/rpc-tests/getchaintips.py --srcdir "${BUILDDIR}/src"
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#${BUILDDIR}/qa/rpc-tests/forknotify.py --srcdir "${BUILDDIR}/src"
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else
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echo "No rpc tests to run. Wallet, utils, and bitcoind must all be enabled"
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@ -19,6 +19,7 @@ class GetChainTipsTest (BitcoinTestFramework):
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assert_equal (len (tips), 1)
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assert_equal (tips[0]['branchlen'], 0)
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assert_equal (tips[0]['height'], 200)
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assert_equal (tips[0]['status'], 'active')
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# Split the network and build two chains of different lengths.
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self.split_network ()
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@ -31,12 +32,14 @@ class GetChainTipsTest (BitcoinTestFramework):
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shortTip = tips[0]
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assert_equal (shortTip['branchlen'], 0)
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assert_equal (shortTip['height'], 210)
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assert_equal (tips[0]['status'], 'active')
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tips = self.nodes[3].getchaintips ()
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assert_equal (len (tips), 1)
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longTip = tips[0]
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assert_equal (longTip['branchlen'], 0)
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assert_equal (longTip['height'], 220)
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assert_equal (tips[0]['status'], 'active')
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# Join the network halves and check that we now have two tips
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# (at least at the nodes that previously had the short chain).
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@ -47,7 +50,9 @@ class GetChainTipsTest (BitcoinTestFramework):
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assert_equal (tips[0], longTip)
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assert_equal (tips[1]['branchlen'], 10)
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tips[1]['branchlen'] = 0;
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assert_equal (tips[1]['status'], 'valid-fork')
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tips[1]['branchlen'] = 0
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tips[1]['status'] = 'active'
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assert_equal (tips[1], shortTip)
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if __name__ == '__main__':
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@ -496,11 +496,13 @@ Value getchaintips(const Array& params, bool fHelp)
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" \"height\": xxxx, (numeric) height of the chain tip\n"
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" \"hash\": \"xxxx\", (string) block hash of the tip\n"
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" \"branchlen\": 0 (numeric) zero for main chain\n"
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" \"status\": \"active\" (string) \"active\" for the main chain\n"
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" },\n"
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" {\n"
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" \"height\": xxxx,\n"
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" \"hash\": \"xxxx\",\n"
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" \"branchlen\": 1 (numeric) length of branch connecting the tip to the main chain\n"
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" \"status\": \"xxxx\" (string) status of the chain (active, valid-fork, valid-headers, headers-only, invalid)\n"
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" }\n"
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"]\n"
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"\nExamples:\n"
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@ -521,6 +523,9 @@ Value getchaintips(const Array& params, bool fHelp)
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setTips.erase(pprev);
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}
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// Always report the currently active tip.
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setTips.insert(chainActive.Tip());
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/* Construct the output array. */
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Array res;
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BOOST_FOREACH(const CBlockIndex* block, setTips)
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@ -532,6 +537,28 @@ Value getchaintips(const Array& params, bool fHelp)
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const int branchLen = block->nHeight - chainActive.FindFork(block)->nHeight;
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obj.push_back(Pair("branchlen", branchLen));
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string status;
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if (chainActive.Contains(block)) {
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// This block is part of the currently active chain.
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status = "active";
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} else if (block->nStatus & BLOCK_FAILED_MASK) {
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// This block or one of its ancestors is invalid.
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status = "invalid";
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} else if (block->nChainTx == 0) {
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// This block cannot be connected because full block data for it or one of its parents is missing.
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status = "headers-only";
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} else if (block->IsValid(BLOCK_VALID_SCRIPTS)) {
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// This block is fully validated, but no longer part of the active chain. It was probably the active block once, but was reorganized.
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status = "valid-fork";
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} else if (block->IsValid(BLOCK_VALID_TREE)) {
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// The headers for this block are valid, but it has not been validated. It was probably never part of the most-work chain.
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status = "valid-headers";
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} else {
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// No clue.
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status = "unknown";
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}
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obj.push_back(Pair("status", status));
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res.push_back(obj);
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}
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