From 941176cd65219afac81ea5bb2add425f69913142 Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Mon, 21 Nov 2011 14:13:28 +0200
Subject: [PATCH] Default to saving stuff more often to minimize lag caused by
 a single save

---
 src/defaultsettings.cpp |  4 ++--
 src/map.cpp             | 16 ++++++++++++----
 src/server.cpp          |  2 +-
 3 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp
index 2cb69b116..20a6dc0a8 100644
--- a/src/defaultsettings.cpp
+++ b/src/defaultsettings.cpp
@@ -106,8 +106,8 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("max_block_generate_distance", "5");
 	settings->setDefault("time_send_interval", "20");
 	settings->setDefault("time_speed", "96");
-	settings->setDefault("server_unload_unused_data_timeout", "60");
-	settings->setDefault("server_map_save_interval", "10");
+	settings->setDefault("server_unload_unused_data_timeout", "19");
+	settings->setDefault("server_map_save_interval", "1.238");
 	settings->setDefault("full_block_send_enable_min_time_from_building", "2.0");
 	settings->setDefault("enable_experimental", "false");
 }
diff --git a/src/map.cpp b/src/map.cpp
index 13f2a0e98..7d5bd700d 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -2836,7 +2836,9 @@ void ServerMap::save(bool only_changed)
 	u32 block_count = 0;
 	u32 block_count_all = 0; // Number of blocks in memory
 	
-	beginSave();
+	// Don't do anything with sqlite unless something is really saved
+	bool save_started = false;
+
 	core::map<v2s16, MapSector*>::Iterator i = m_sectors.getIterator();
 	for(; i.atEnd() == false; i++)
 	{
@@ -2852,7 +2854,6 @@ void ServerMap::save(bool only_changed)
 		sector->getBlocks(blocks);
 		core::list<MapBlock*>::Iterator j;
 		
-		//sqlite3_exec(m_database, "BEGIN;", NULL, NULL, NULL);
 		for(j=blocks.begin(); j!=blocks.end(); j++)
 		{
 			MapBlock *block = *j;
@@ -2862,7 +2863,14 @@ void ServerMap::save(bool only_changed)
 			if(block->getModified() >= MOD_STATE_WRITE_NEEDED 
 					|| only_changed == false)
 			{
+				// Lazy beginSave()
+				if(!save_started){
+					beginSave();
+					save_started = true;
+				}
+
 				modprofiler.add(block->getModifiedReason(), 1);
+
 				saveBlock(block);
 				block_count++;
 
@@ -2872,10 +2880,10 @@ void ServerMap::save(bool only_changed)
 						<<block->getPos().Z<<")"
 						<<std::endl;*/
 			}
-		//sqlite3_exec(m_database, "COMMIT;", NULL, NULL, NULL);
 		}
 	}
-	endSave();
+	if(save_started)
+		endSave();
 
 	/*
 		Only print if something happened or saved whole map
diff --git a/src/server.cpp b/src/server.cpp
index 207f35dcb..dd4a93c78 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -1300,7 +1300,7 @@ void Server::AsyncRunStep()
 		m_env->step(dtime);
 	}
 		
-	const float map_timer_and_unload_dtime = 5.15;
+	const float map_timer_and_unload_dtime = 2.92;
 	if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime))
 	{
 		JMutexAutoLock lock(m_env_mutex);
-- 
2.25.1