From 7b45d943b29a443f1ac808c9ee4eeed6df0db9cc Mon Sep 17 00:00:00 2001 From: shshshsh Date: Fri, 30 May 2014 12:35:23 +0000 Subject: [PATCH] Make max number of orphan blocks kept in memory a startup parameter (fixes #4253) --- src/init.cpp | 1 + src/main.cpp | 2 +- src/main.h | 4 ++-- 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/src/init.cpp b/src/init.cpp index bc4924b48..995f2700c 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -206,6 +206,7 @@ std::string HelpMessage(HelpMessageMode hmm) strUsage += " -dbcache= " + strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache, nMaxDbCache, nDefaultDbCache) + "\n"; strUsage += " -keypool= " + _("Set key pool size to (default: 100)") + "\n"; strUsage += " -loadblock= " + _("Imports blocks from external blk000??.dat file") + " " + _("on startup") + "\n"; + strUsage += " -maxorphanblocks= " + strprintf(_("Keep at most unconnectable blocks in memory (default: %u)"), DEFAULT_MAX_ORPHAN_BLOCKS) + "\n"; strUsage += " -par= " + strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"), -(int)boost::thread::hardware_concurrency(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS) + "\n"; strUsage += " -pid= " + _("Specify pid file (default: bitcoind.pid)") + "\n"; strUsage += " -reindex " + _("Rebuild block chain index from current blk000??.dat files") + " " + _("on startup") + "\n"; diff --git a/src/main.cpp b/src/main.cpp index 18c00d90a..5cb6e706b 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -1160,7 +1160,7 @@ uint256 static GetOrphanRoot(const uint256& hash) // Remove a random orphan block (which does not have any dependent orphans). void static PruneOrphanBlocks() { - if (mapOrphanBlocksByPrev.size() <= MAX_ORPHAN_BLOCKS) + if (mapOrphanBlocksByPrev.size() <= (size_t)std::max((int64_t)0, GetArg("-maxorphanblocks", DEFAULT_MAX_ORPHAN_BLOCKS))) return; // Pick a random orphan block. diff --git a/src/main.h b/src/main.h index 8a05eb60d..26f66630a 100644 --- a/src/main.h +++ b/src/main.h @@ -45,8 +45,8 @@ static const unsigned int MAX_STANDARD_TX_SIZE = 100000; static const unsigned int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50; /** The maximum number of orphan transactions kept in memory */ static const unsigned int MAX_ORPHAN_TRANSACTIONS = MAX_BLOCK_SIZE/100; -/** The maximum number of orphan blocks kept in memory */ -static const unsigned int MAX_ORPHAN_BLOCKS = 750; +/** Default for -maxorphanblocks, maximum number of orphan blocks kept in memory */ +static const unsigned int DEFAULT_MAX_ORPHAN_BLOCKS = 750; /** The maximum size of a blk?????.dat file (since 0.8) */ static const unsigned int MAX_BLOCKFILE_SIZE = 0x8000000; // 128 MiB /** The pre-allocation chunk size for blk?????.dat files (since 0.8) */