From dce8360e44d5330cc9f9d09c9b09ac9237237204 Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Thu, 19 Mar 2015 05:34:06 -0700 Subject: Reduce checkpoints' effect on consensus. Instead of only checking height to decide whether to disable script checks, actually check whether a block is an ancestor of a checkpoint, up to which headers have been validated. This means that we don't have to prevent accepting a side branch anymore - it will be safe, just less fast to do. We still need to prevent being fed a multitude of low-difficulty headers filling up our memory. The mechanism for that is unchanged for now: once a checkpoint is reached with headers, no headers chain branching off before that point are allowed anymore. --- src/init.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/init.cpp') diff --git a/src/init.cpp b/src/init.cpp index 47cbda32f..1905bbf8b 100644 --- a/src/init.cpp +++ b/src/init.cpp @@ -347,7 +347,7 @@ std::string HelpMessage(HelpMessageMode mode) strUsage += HelpMessageGroup(_("Debugging/Testing options:")); if (GetBoolArg("-help-debug", false)) { - strUsage += HelpMessageOpt("-checkpoints", strprintf(_("Only accept block chain matching built-in checkpoints (default: %u)"), 1)); + strUsage += HelpMessageOpt("-checkpoints", strprintf(_("Disable expensive verification for known chain history (default: %u)"), 1)); strUsage += HelpMessageOpt("-dblogsize=", strprintf(_("Flush database activity from memory pool to disk log every megabytes (default: %u)"), 100)); strUsage += HelpMessageOpt("-disablesafemode", strprintf(_("Disable safemode, override a real safe mode event (default: %u)"), 0)); strUsage += HelpMessageOpt("-testsafemode", strprintf(_("Force safe mode (default: %u)"), 0)); -- cgit v1.2.3