diff options
Diffstat (limited to 'src/rpc')
| -rw-r--r-- | src/rpc/blockchain.cpp | 41 | ||||
| -rw-r--r-- | src/rpc/client.cpp | 1 |
2 files changed, 42 insertions, 0 deletions
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp index 59748dd200..caa92bef9d 100644 --- a/src/rpc/blockchain.cpp +++ b/src/rpc/blockchain.cpp @@ -814,6 +814,46 @@ static bool GetUTXOStats(CCoinsView *view, CCoinsStats &stats) return true; } +UniValue pruneblockchain(const JSONRPCRequest& request) +{ + if (request.fHelp || request.params.size() != 1) + throw runtime_error( + "pruneblockchain\n" + "\nArguments:\n" + "1. \"height\" (numeric, required) The block height to prune up to. May be set to a discrete height, or to a unix timestamp to prune based on block time.\n"); + + if (!fPruneMode) + throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Cannot prune blocks because node is not in prune mode."); + + LOCK(cs_main); + + int heightParam = request.params[0].get_int(); + if (heightParam < 0) + throw JSONRPCError(RPC_INVALID_PARAMETER, "Negative block height."); + + // Height value more than a billion is too high to be a block height, and + // too low to be a block time (corresponds to timestamp from Sep 2001). + if (heightParam > 1000000000) { + CBlockIndex* pindex = chainActive.FindLatestBefore(heightParam); + if (!pindex) { + throw JSONRPCError(RPC_INTERNAL_ERROR, "Could not find block before specified timestamp."); + } + heightParam = pindex->nHeight; + } + + unsigned int height = (unsigned int) heightParam; + unsigned int chainHeight = (unsigned int) chainActive.Height(); + if (chainHeight < Params().PruneAfterHeight()) + throw JSONRPCError(RPC_INTERNAL_ERROR, "Blockchain is too short for pruning."); + else if (height > chainHeight) + throw JSONRPCError(RPC_INVALID_PARAMETER, "Blockchain is shorter than the attempted prune height."); + else if (height > chainHeight - MIN_BLOCKS_TO_KEEP) + LogPrint("rpc", "Attempt to prune blocks close to the tip. Retaining the minimum number of blocks."); + + PruneBlockFilesManual(height); + return NullUniValue; +} + UniValue gettxoutsetinfo(const JSONRPCRequest& request) { if (request.fHelp || request.params.size() != 0) @@ -1384,6 +1424,7 @@ static const CRPCCommand commands[] = { "blockchain", "getrawmempool", &getrawmempool, true, {"verbose"} }, { "blockchain", "gettxout", &gettxout, true, {"txid","n","include_mempool"} }, { "blockchain", "gettxoutsetinfo", &gettxoutsetinfo, true, {} }, + { "blockchain", "pruneblockchain", &pruneblockchain, true, {"height"} }, { "blockchain", "verifychain", &verifychain, true, {"checklevel","nblocks"} }, { "blockchain", "preciousblock", &preciousblock, true, {"blockhash"} }, diff --git a/src/rpc/client.cpp b/src/rpc/client.cpp index 422d005f0c..5d3c458455 100644 --- a/src/rpc/client.cpp +++ b/src/rpc/client.cpp @@ -103,6 +103,7 @@ static const CRPCConvertParam vRPCConvertParams[] = { "importmulti", 1, "options" }, { "verifychain", 0, "checklevel" }, { "verifychain", 1, "nblocks" }, + { "pruneblockchain", 0, "height" }, { "keypoolrefill", 0, "newsize" }, { "getrawmempool", 0, "verbose" }, { "estimatefee", 0, "nblocks" }, |