diff --git a/src/jthread/pthread/jsemaphore.cpp b/src/jthread/pthread/jsemaphore.cpp
@@ -16,26 +16,27 @@ You should have received a copy of the GNU Lesser General Public License along
 with this program; if not, write to the Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
+#include <assert.h>
 #include "jthread/jsemaphore.h"
 
 JSemaphore::JSemaphore() {
-	sem_init(&m_semaphore,0,0);
+	assert(sem_init(&m_semaphore,0,0) == 0);
 }
 
 JSemaphore::~JSemaphore() {
-	sem_destroy(&m_semaphore);
+	assert(sem_destroy(&m_semaphore) == 0);
 }
 
 JSemaphore::JSemaphore(int initval) {
-	sem_init(&m_semaphore,0,initval);
+	assert(sem_init(&m_semaphore,0,initval) == 0);
 }
 
 void JSemaphore::Post() {
-	sem_post(&m_semaphore);
+	assert(sem_post(&m_semaphore) == 0);
 }
 
 void JSemaphore::Wait() {
-	sem_wait(&m_semaphore);
+	assert(sem_wait(&m_semaphore) == 0);
 }
 
 int JSemaphore::GetValue() {

diff --git a/src/jthread/pthread/jthread.cpp b/src/jthread/pthread/jthread.cpp
@@ -33,7 +33,6 @@
 JThread::JThread()
 {
 	retval = NULL;
-	mutexinit = false;
 	requeststop = false;
 	running = false;
 }
@@ -53,26 +52,6 @@ int JThread::Start()
 {
 	int status;
 
-	if (!mutexinit)
-	{
-		if (!runningmutex.IsInitialized())
-		{
-			if (runningmutex.Init() < 0)
-				return ERR_JTHREAD_CANTINITMUTEX;
-		}
-		if (!continuemutex.IsInitialized())
-		{
-			if (continuemutex.Init() < 0)
-				return ERR_JTHREAD_CANTINITMUTEX;
-		}
-		if (!continuemutex2.IsInitialized())
-		{
-			if (continuemutex2.Init() < 0)
-				return ERR_JTHREAD_CANTINITMUTEX;
-		}
-		mutexinit = true;
-	}
-
 	runningmutex.Lock();
 	if (running)
 	{

diff --git a/src/jthread/win32/jevent.cpp b/src/jthread/win32/jevent.cpp
@@ -0,0 +1,43 @@
+/*
+
+    This file is a part of the JThread package, which contains some object-
+    oriented thread wrappers for different thread implementations.
+
+    Copyright (c) 2000-2006  Jori Liesenborgs (jori.liesenborgs@gmail.com)
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+
+*/
+#include "jthread/jevent.h"
+
+Event::Event() {
+	hEvent = CreateEvent(NULL, 0, 0, NULL);
+}
+
+Event::~Event() {
+	CloseHandle(hEvent);
+}
+
+void Event::wait() {
+	WaitForSingleObject(hEvent, INFINITE);
+}
+
+void Event::signal() {
+	SetEvent(hEvent);
+}
diff --git a/src/jthread/win32/jmutex.cpp b/src/jthread/win32/jmutex.cpp
@@ -24,7 +24,7 @@
     DEALINGS IN THE SOFTWARE.
 
 */
-
+#include <assert.h>
 #include "jthread/jmutex.h"
 
 JMutex::JMutex()
@@ -33,31 +33,21 @@ JMutex::JMutex()
 	InitializeCriticalSection(&mutex);
 #else
 	mutex = CreateMutex(NULL,FALSE,NULL);
-	if (mutex == NULL)
-		return ERR_JMUTEX_CANTCREATEMUTEX;
+	assert(mutex != NULL);
 #endif // JMUTEX_CRITICALSECTION
-	initialized = true;
 }
 
 JMutex::~JMutex()
 {
-	if (initialized)
 #ifdef JMUTEX_CRITICALSECTION
-		DeleteCriticalSection(&mutex);
+	DeleteCriticalSection(&mutex);
 #else
-		CloseHandle(mutex);
+	CloseHandle(mutex);
 #endif // JMUTEX_CRITICALSECTION
 }
 
-int JMutex::Init()
-{
-	return 0;
-}
-
 int JMutex::Lock()
 {
-	if (!initialized)
-		return ERR_JMUTEX_NOTINIT;
 #ifdef JMUTEX_CRITICALSECTION
 	EnterCriticalSection(&mutex);
 #else
@@ -68,8 +58,6 @@ int JMutex::Lock()
 
 int JMutex::Unlock()
 {
-	if (!initialized)
-		return ERR_JMUTEX_NOTINIT;
 #ifdef JMUTEX_CRITICALSECTION
 	LeaveCriticalSection(&mutex);
 #else

diff --git a/src/jthread/win32/jthread.cpp b/src/jthread/win32/jthread.cpp
@@ -34,7 +34,6 @@
 JThread::JThread()
 {
 	retval = NULL;
-	mutexinit = false;
 	requeststop = false;
 	running = false;
 }
@@ -52,25 +51,6 @@ void JThread::Stop() {
 
 int JThread::Start()
 {
-	if (!mutexinit)
-	{
-		if (!runningmutex.IsInitialized())
-		{
-			if (runningmutex.Init() < 0)
-				return ERR_JTHREAD_CANTINITMUTEX;
-		}
-		if (!continuemutex.IsInitialized())
-		{
-			if (continuemutex.Init() < 0)
-				return ERR_JTHREAD_CANTINITMUTEX;
-		}
-		if (!continuemutex2.IsInitialized())
-		{
-			if (continuemutex2.Init() < 0)
-				return ERR_JTHREAD_CANTINITMUTEX;
-		}		mutexinit = true;
-	}
-
 	runningmutex.Lock();
 	if (running)
 	{

diff --git a/src/main.cpp b/src/main.cpp
@@ -86,7 +86,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #endif
 
 #if USE_CURL
-#include "curl.h"
+#include "curl/curl.h"
 #endif
 
 /*
@@ -708,7 +708,6 @@ void SpeedTests()
 		TimeTaker timer("Testing mutex speed");
 
 		JMutex m;
-		m.Init();
 		u32 n = 0;
 		u32 i = 0;
 		do{

diff --git a/src/map.cpp b/src/map.cpp
@@ -75,8 +75,6 @@ Map::Map(std::ostream &dout, IGameDef *gamedef):
 	m_gamedef(gamedef),
 	m_sector_cache(NULL)
 {
-	/*m_sector_mutex.Init();
-	assert(m_sector_mutex.IsInitialized());*/
 }
 
 Map::~Map()
@@ -1681,7 +1679,7 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
 		v3s16 p0 = m_transforming_liquid.pop_front();
 		u16 total_level = 0;
 		// surrounding flowing liquid nodes
-		NodeNeighbor neighbors[7]; 
+		NodeNeighbor neighbors[7];
 		// current level of every block
 		s8 liquid_levels[7] = {-1, -1, -1, -1, -1, -1, -1};
 		 // target levels
@@ -1782,8 +1780,8 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
 			liquid_levels[D_BOTTOM] == LIQUID_LEVEL_SOURCE &&
 			total_level >= LIQUID_LEVEL_SOURCE * can_liquid_same_level-
 			(can_liquid_same_level - relax) &&
-			can_liquid_same_level >= relax + 1) { 
-			total_level = LIQUID_LEVEL_SOURCE * can_liquid_same_level; 
+			can_liquid_same_level >= relax + 1) {
+			total_level = LIQUID_LEVEL_SOURCE * can_liquid_same_level;
 		}
 
 		// prevent lakes in air above unloaded blocks
@@ -1792,9 +1790,9 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
 		}
 
 		// calculate self level 5 blocks
-		u8 want_level = 
+		u8 want_level =
 			  total_level >= LIQUID_LEVEL_SOURCE * can_liquid_same_level
-			? LIQUID_LEVEL_SOURCE 
+			? LIQUID_LEVEL_SOURCE
 			: total_level / can_liquid_same_level;
 		total_level -= want_level * can_liquid_same_level;
 
@@ -1852,7 +1850,7 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
 
 		/*
 		if (total_level > 0) //|| flowed != volume)
-			infostream <<" AFTER level=" << (int)total_level 
+			infostream <<" AFTER level=" << (int)total_level
 			//<< " flowed="<<flowed<< " volume=" << volume
 			<< " wantsame="<<(int)want_level<< " top="
 			<< (int)liquid_levels_want[D_TOP]<< " topwas="
@@ -1862,7 +1860,7 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
 
 		//u8 changed = 0;
 		for (u16 i = 0; i < 7; i++) {
-			if (liquid_levels_want[i] < 0 || !neighbors[i].l) 
+			if (liquid_levels_want[i] < 0 || !neighbors[i].l)
 				continue;
 			MapNode & n0 = neighbors[i].n;
 			p0 = neighbors[i].p;
@@ -1909,7 +1907,7 @@ void Map::transformLiquidsFinite(std::map<v3s16, MapBlock*> & modified_blocks)
 			 */
 			/*
 			if (
-				 new_node_content == n0.getContent() 
+				 new_node_content == n0.getContent()
 				&& (nodemgr->get(n0.getContent()).liquid_type != LIQUID_FLOWING ||
 				 (n0.getLevel(nodemgr) == (u8)new_node_level
 				 //&& ((n0.param2 & LIQUID_FLOW_DOWN_MASK) ==

diff --git a/src/mapblock.cpp b/src/mapblock.cpp
@@ -68,7 +68,6 @@ MapBlock::MapBlock(Map *parent, v3s16 pos, IGameDef *gamedef, bool dummy):
 		reallocate();
 
 #ifndef SERVER
-	//mesh_mutex.Init();
 	mesh = NULL;
 #endif
 }

diff --git a/src/profiler.h b/src/profiler.h
@@ -38,7 +38,6 @@ class Profiler
 public:
 	Profiler()
 	{
-		m_mutex.Init();
 	}
 
 	void add(const std::string &name, float value)

diff --git a/src/quicktune.cpp b/src/quicktune.cpp
@@ -55,7 +55,6 @@ static void makeMutex()
 {
 	if(!g_mutex){
 		g_mutex = new JMutex();
-		g_mutex->Init();
 	}
 }
 

diff --git a/src/script/cpp_api/s_base.cpp b/src/script/cpp_api/s_base.cpp
@@ -62,8 +62,6 @@ class ModNameStorer
 
 ScriptApiBase::ScriptApiBase()
 {
-	m_luastackmutex.Init();
-
 	#ifdef SCRIPTAPI_LOCK_DEBUG
 	m_locked = false;
 	#endif

diff --git a/src/script/lua_api/l_async_events.cpp b/src/script/lua_api/l_async_events.cpp
@@ -36,8 +36,6 @@ AsyncEngine::AsyncEngine() :
 	m_initDone(false),
 	m_JobIdCounter(0)
 {
-	assert(m_JobQueueMutex.Init() == 0);
-	assert(m_ResultQueueMutex.Init() == 0);
 }
 
 /******************************************************************************/

diff --git a/src/server.cpp b/src/server.cpp
@@ -674,9 +674,6 @@ Server::Server(
 	m_emergethread_trigger_timer = 0.0;
 	m_savemap_timer = 0.0;
 
-	m_env_mutex.Init();
-	m_con_mutex.Init();
-	m_step_dtime_mutex.Init();
 	m_step_dtime = 0.0;
 
 	if(path_world == "")
@@ -722,7 +719,7 @@ Server::Server(
 	m_mods = modconf.getMods();
 	std::vector<ModSpec> unsatisfied_mods = modconf.getUnsatisfiedMods();
 	// complain about mods with unsatisfied dependencies
-	if(!modconf.isConsistent())	
+	if(!modconf.isConsistent())
 	{
 		for(std::vector<ModSpec>::iterator it = unsatisfied_mods.begin();
 			it != unsatisfied_mods.end(); ++it)
@@ -741,10 +738,10 @@ Server::Server(
 	worldmt_settings.readConfigFile(worldmt.c_str());
 	std::vector<std::string> names = worldmt_settings.getNames();
 	std::set<std::string> load_mod_names;
-	for(std::vector<std::string>::iterator it = names.begin(); 
+	for(std::vector<std::string>::iterator it = names.begin();
 		it != names.end(); ++it)
-	{	
-		std::string name = *it;  
+	{
+		std::string name = *it;
 		if(name.compare(0,9,"load_mod_")==0 && worldmt_settings.getBool(name))
 			load_mod_names.insert(name.substr(9));
 	}
@@ -756,7 +753,7 @@ Server::Server(
 			it != unsatisfied_mods.end(); ++it)
 		load_mod_names.erase((*it).name);
 	if(!load_mod_names.empty())
-	{		
+	{
 		errorstream << "The following mods could not be found:";
 		for(std::set<std::string>::iterator it = load_mod_names.begin();
 			it != load_mod_names.end(); ++it)

diff --git a/src/settings.h b/src/settings.h
@@ -60,7 +60,6 @@ class Settings
 public:
 	Settings()
 	{
-		m_mutex.Init();
 	}
 
 	void writeLines(std::ostream &os)
@@ -77,7 +76,7 @@ class Settings
 		}
 	}
 
-	// return all keys used 
+	// return all keys used
 	std::vector<std::string> getNames(){
 		std::vector<std::string> names;
 		for(std::map<std::string, std::string>::iterator
@@ -86,7 +85,7 @@ class Settings
 		{
 			names.push_back(i->first);
 		}
-		return names;  
+		return names;
 	}
 
 	// remove a setting

diff --git a/src/shader.cpp b/src/shader.cpp
@@ -373,8 +373,6 @@ ShaderSource::ShaderSource(IrrlichtDevice *device):
 
 	m_shader_callback = new ShaderCallback(this, "default");
 
-	m_shaderinfo_cache_mutex.Init();
-
 	m_main_thread = get_current_thread_id();
 
 	// Add a dummy ShaderInfo as the first index, named ""

diff --git a/src/tile.cpp b/src/tile.cpp
@@ -433,8 +433,6 @@ TextureSource::TextureSource(IrrlichtDevice *device):
 {
 	assert(m_device);
 
-	m_textureinfo_cache_mutex.Init();
-
 	m_main_thread = get_current_thread_id();
 
 	// Add a NULL TextureInfo as the first index, named ""

diff --git a/src/util/container.h b/src/util/container.h
@@ -83,8 +83,6 @@ class MutexedMap
 public:
 	MutexedMap()
 	{
-		m_mutex.Init();
-		assert(m_mutex.IsInitialized());
 	}
 
 	void set(const Key &name, const Value &value)
@@ -150,8 +148,6 @@ class MutexedIdGenerator
 public:
 	MutexedIdGenerator()
 	{
-		m_mutex.Init();
-		assert(m_mutex.IsInitialized());
 	}
 
 	// Returns true if found
@@ -253,7 +249,6 @@ class MutexedQueue
 public:
 	MutexedQueue()
 	{
-		m_mutex.Init();
 	}
 	bool empty()
 	{

diff --git a/src/util/thread.h b/src/util/thread.h
@@ -32,7 +32,6 @@ class MutexedVariable
 	MutexedVariable(T value):
 		m_value(value)
 	{
-		m_mutex.Init();
 	}
 
 	T get()
@@ -75,7 +74,6 @@ class SimpleThread : public JThread
 		JThread(),
 		run(true)
 	{
-		run_mutex.Init();
 	}
 
 	virtual ~SimpleThread()
-Original file line number
+Diff line change
@@ Expand Up / @@ -38,7 +38,6 @@ class Profiler @@
     public:
     	Profiler()
     	{
-    		m_mutex.Init();
     	}
     	void add(const std::string &name, float value)
@@ Expand Down @@