Config serialization/deserialziation

nano/core_test/toml.cpp

@@ -275,6 +275,7 @@ TEST (toml, daemon_config_deserialize_defaults)
 	ASSERT_EQ (conf.node.hinted_scheduler.hinting_threshold_percent, defaults.node.hinted_scheduler.hinting_threshold_percent);
 	ASSERT_EQ (conf.node.hinted_scheduler.check_interval.count (), defaults.node.hinted_scheduler.check_interval.count ());
 	ASSERT_EQ (conf.node.hinted_scheduler.block_cooldown.count (), defaults.node.hinted_scheduler.block_cooldown.count ());
+	ASSERT_EQ (conf.node.hinted_scheduler.vacancy_threshold_percent, defaults.node.hinted_scheduler.vacancy_threshold_percent);
 
 	ASSERT_EQ (conf.node.vote_cache.max_size, defaults.node.vote_cache.max_size);
 	ASSERT_EQ (conf.node.vote_cache.max_voters, defaults.node.vote_cache.max_voters);
@@ -543,6 +544,7 @@ TEST (toml, daemon_config_deserialize_no_defaults)
 	hinting_threshold = 99
 	check_interval = 999
 	block_cooldown = 999
+	vacancy_threshold = 99
 
 	[node.rocksdb]
 	enable = true
@@ -720,6 +722,7 @@ TEST (toml, daemon_config_deserialize_no_defaults)
 	ASSERT_NE (conf.node.hinted_scheduler.hinting_threshold_percent, defaults.node.hinted_scheduler.hinting_threshold_percent);
 	ASSERT_NE (conf.node.hinted_scheduler.check_interval.count (), defaults.node.hinted_scheduler.check_interval.count ());
 	ASSERT_NE (conf.node.hinted_scheduler.block_cooldown.count (), defaults.node.hinted_scheduler.block_cooldown.count ());
+	ASSERT_NE (conf.node.hinted_scheduler.vacancy_threshold_percent, defaults.node.hinted_scheduler.vacancy_threshold_percent);
 
 	ASSERT_NE (conf.node.vote_cache.max_size, defaults.node.vote_cache.max_size);
 	ASSERT_NE (conf.node.vote_cache.max_voters, defaults.node.vote_cache.max_voters);

nano/node/scheduler/hinted.cpp

@@ -47,7 +47,7 @@ void nano::scheduler::hinted::notify ()
 {
 	// Avoid notifying when there is very little space inside AEC
 	auto const limit = active.limit (nano::election_behavior::hinted);
-	if (active.vacancy (nano::election_behavior::hinted) >= (limit * config.vaccancy_threshold_percent / 100))
+	if (active.vacancy (nano::election_behavior::hinted) >= (limit * config.vacancy_threshold_percent / 100))
 	{
 		condition.notify_all ();
 	}
@@ -230,6 +230,7 @@ nano::error nano::scheduler::hinted_config::serialize (nano::tomlconfig & toml)
 	toml.put ("hinting_threshold", hinting_threshold_percent, "Percentage of online weight needed to start a hinted election. \ntype:uint32,[0,100]");
 	toml.put ("check_interval", check_interval.count (), "Interval between scans of the vote cache for possible hinted elections. \ntype:milliseconds");
 	toml.put ("block_cooldown", block_cooldown.count (), "Cooldown period for blocks that failed to start an election. \ntype:milliseconds");
+	toml.put ("vacancy_threshold", vacancy_threshold_percent, "Percentage of available space in the active elections container needed to trigger a scan for hinted elections (before the check interval elapses). \ntype:uint32,[0,100]");
 
 	return toml.get_error ();
 }
@@ -246,10 +247,16 @@ nano::error nano::scheduler::hinted_config::deserialize (nano::tomlconfig & toml
 	toml.get ("block_cooldown", block_cooldown_l);
 	block_cooldown = std::chrono::milliseconds{ block_cooldown_l };
 
+	toml.get ("vacancy_threshold", vacancy_threshold_percent);
+
 	if (hinting_threshold_percent > 100)
 	{
 		toml.get_error ().set ("hinting_threshold must be a number between 0 and 100");
 	}
+	if (vacancy_threshold_percent > 100)
+	{
+		toml.get_error ().set ("vacancy_threshold must be a number between 0 and 100");
+	}
 
 	return toml.get_error ();
 }

nano/node/scheduler/hinted.hpp

@@ -39,7 +39,7 @@ class hinted_config final
 	std::chrono::milliseconds check_interval{ 1000 };
 	std::chrono::milliseconds block_cooldown{ 10000 };
 	unsigned hinting_threshold_percent{ 10 };
-	unsigned vaccancy_threshold_percent{ 20 };
+	unsigned vacancy_threshold_percent{ 20 };
 };
 
 /*

nano/node/vote_cache.cpp

@@ -268,6 +268,7 @@ nano::error nano::vote_cache_config::serialize (nano::tomlconfig & toml) const
 {
 	toml.put ("max_size", max_size, "Maximum number of blocks to cache votes for. \ntype:uint64");
 	toml.put ("max_voters", max_voters, "Maximum number of voters to cache per block. \ntype:uint64");
+	toml.put ("age_cutoff", age_cutoff.count (), "Maximum age of votes to keep in cache. \ntype:seconds");
 
 	return toml.get_error ();
 }
@@ -277,5 +278,9 @@ nano::error nano::vote_cache_config::deserialize (nano::tomlconfig & toml)
 	toml.get ("max_size", max_size);
 	toml.get ("max_voters", max_voters);
 
+	auto age_cutoff_l = age_cutoff.count ();
+	toml.get ("age_cutoff", age_cutoff_l);
+	age_cutoff = std::chrono::seconds{ age_cutoff_l };
+
 	return toml.get_error ();
 }