From b12f4ef7d58cfe4d815feb2db1f88f223c7f2a61 Mon Sep 17 00:00:00 2001
From: Lane Kolbly <lane@rscheme.org>
Date: Thu, 7 Sep 2017 07:41:16 -0500
Subject: Made world data paths adjustable, and added API to temporarily
 disable saving chunks to disk. (#3912)

---
 src/World.cpp | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

(limited to 'src/World.cpp')

diff --git a/src/World.cpp b/src/World.cpp
index f610d4d2e..e2ac24e71 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -120,16 +120,18 @@ void cWorld::cTickThread::Execute(void)
 ////////////////////////////////////////////////////////////////////////////////
 // cWorld:
 
-cWorld::cWorld(const AString & a_WorldName, eDimension a_Dimension, const AString & a_LinkedOverworldName) :
+cWorld::cWorld(const AString & a_WorldName, const AString & a_DataPath, eDimension a_Dimension, const AString & a_LinkedOverworldName) :
 	m_WorldName(a_WorldName),
+	m_DataPath(a_DataPath),
 	m_LinkedOverworldName(a_LinkedOverworldName),
-	m_IniFileName(m_WorldName + "/world.ini"),
+	m_IniFileName(m_DataPath + "/world.ini"),
 	m_StorageSchema("Default"),
 #ifdef __arm__
 	m_StorageCompressionFactor(0),
 #else
 	m_StorageCompressionFactor(6),
 #endif
+	m_IsSavingEnabled(true),
 	m_Dimension(a_Dimension),
 	m_IsSpawnExplicitlySet(false),
 	m_SpawnX(0),
@@ -194,10 +196,10 @@ cWorld::cWorld(const AString & a_WorldName, eDimension a_Dimension, const AStrin
 {
 	LOGD("cWorld::cWorld(\"%s\")", a_WorldName.c_str());
 
-	cFile::CreateFolder(FILE_IO_PREFIX + m_WorldName);
+	cFile::CreateFolderRecursive(FILE_IO_PREFIX + m_DataPath);
 
 	// Load the scoreboard
-	cScoreboardSerializer Serializer(m_WorldName, &m_Scoreboard);
+	cScoreboardSerializer Serializer(m_DataPath, &m_Scoreboard);
 	Serializer.Load();
 }
 
@@ -213,11 +215,14 @@ cWorld::~cWorld()
 
 	m_Storage.WaitForFinish();
 
-	// Unload the scoreboard
-	cScoreboardSerializer Serializer(m_WorldName, &m_Scoreboard);
-	Serializer.Save();
+	if (IsSavingEnabled())
+	{
+		// Unload the scoreboard
+		cScoreboardSerializer Serializer(m_DataPath, &m_Scoreboard);
+		Serializer.Save();
 
-	m_MapManager.SaveMapData();
+		m_MapManager.SaveMapData();
+	}
 
 	// Explicitly destroy the chunkmap, so that it's guaranteed to be destroyed before the other internals
 	// This fixes crashes on stopping the server, because chunk destructor deletes entities and those access the world.
@@ -2965,7 +2970,9 @@ void cWorld::SetChunkData(cSetChunkData & a_SetChunkData)
 	);
 
 	// Save the chunk right after generating, so that we don't have to generate it again on next run
-	if (a_SetChunkData.ShouldMarkDirty())
+	// If saving is disabled, then the chunk was marked dirty so it will get
+	// saved if saving is later enabled.
+	if (a_SetChunkData.ShouldMarkDirty() && IsSavingEnabled())
 	{
 		m_Storage.QueueSaveChunk(ChunkX, ChunkZ);
 	}
@@ -3629,8 +3636,11 @@ bool cWorld::ForEachLoadedChunk(std::function<bool(int, int)> a_Callback)
 
 void cWorld::SaveAllChunks(void)
 {
-	m_LastSave = std::chrono::duration_cast<cTickTimeLong>(m_WorldAge);
-	m_ChunkMap->SaveAllChunks();
+	if (IsSavingEnabled())
+	{
+		m_LastSave = std::chrono::duration_cast<cTickTimeLong>(m_WorldAge);
+		m_ChunkMap->SaveAllChunks();
+	}
 }
 
 
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