24 files changed, 638 insertions, 225 deletions
diff --git a/indra/llcommon/CMakeLists.txt b/indra/llcommon/CMakeLists.txt
index dd7b8c6eb8..66e2bc9095 100644
--- a/indra/llcommon/CMakeLists.txt
+++ b/indra/llcommon/CMakeLists.txt
@@ -116,6 +116,7 @@ set(llcommon_HEADER_FILES
     bitpack.h
     ctype_workaround.h
     doublelinkedlist.h
+    fix_macros.h
     imageids.h
     indra_constants.h
     linden_common.h
@@ -174,6 +175,7 @@ set(llcommon_HEADER_FILES
     llfoldertype.h
     llformat.h
     llframetimer.h
+    llhandle.h
     llhash.h
     llheartbeat.h
     llhttpstatuscodes.h
diff --git a/indra/llcommon/fix_macros.h b/indra/llcommon/fix_macros.h
new file mode 100644
index 0000000000..ef959decff
--- /dev/null
+++ b/indra/llcommon/fix_macros.h
@@ -0,0 +1,25 @@
+/**
+ * @file   fix_macros.h
+ * @author Nat Goodspeed
+ * @date   2012-11-16
+ * @brief  The Mac system headers seem to #define macros with obnoxiously
+ *         generic names, preventing any library from using those names. We've
+ *         had to fix these in so many places that it's worth making a header
+ *         file to handle it.
+ * 
+ * $LicenseInfo:firstyear=2012&license=viewerlgpl$
+ * Copyright (c) 2012, Linden Research, Inc.
+ * $/LicenseInfo$
+ */
+
+// DON'T use an #include guard: every time we encounter this header, #undef
+// these macros all over again.
+
+// who injects MACROS with such generic names?! Grr.
+#ifdef equivalent
+#undef equivalent
+#endif 
+
+#ifdef check
+#undef check
+#endif
diff --git a/indra/llcommon/indra_constants.h b/indra/llcommon/indra_constants.h
index 0745696ef3..0da83720bd 100644
--- a/indra/llcommon/indra_constants.h
+++ b/indra/llcommon/indra_constants.h
@@ -62,6 +62,7 @@ enum LAND_STAT_FLAGS
 	STAT_FILTER_BY_PARCEL	= 0x00000001,
 	STAT_FILTER_BY_OWNER	= 0x00000002,
 	STAT_FILTER_BY_OBJECT	= 0x00000004,
+	STAT_FILTER_BY_PARCEL_NAME	= 0x00000008,
 	STAT_REQUEST_LAST_ENTRY	= 0x80000000,
 };
 
diff --git a/indra/llcommon/llallocator.cpp b/indra/llcommon/llallocator.cpp
index 6f6abefc67..87654b5b97 100644
--- a/indra/llcommon/llallocator.cpp
+++ b/indra/llcommon/llallocator.cpp
@@ -27,7 +27,7 @@
 #include "linden_common.h"
 #include "llallocator.h"
 
-#if LL_USE_TCMALLOC
+#if (LL_USE_TCMALLOC && LL_USE_HEAP_PROFILER)
 
 #include "google/heap-profiler.h"
 #include "google/commandlineflags_public.h"
diff --git a/indra/llcommon/llapp.cpp b/indra/llcommon/llapp.cpp
index 95ea60b005..ca258900c7 100644
--- a/indra/llcommon/llapp.cpp
+++ b/indra/llcommon/llapp.cpp
@@ -289,6 +289,7 @@ void LLApp::setupErrorHandling()
 	// occasionally checks to see if the app is in an error state, and sees if it needs to be run.
 
 #if LL_WINDOWS
+#if LL_SEND_CRASH_REPORTS
 	// This sets a callback to handle w32 signals to the console window.
 	// The viewer shouldn't be affected, sicne its a windowed app.
 	SetConsoleCtrlHandler( (PHANDLER_ROUTINE) ConsoleCtrlHandler, TRUE);
@@ -300,7 +301,7 @@ void LLApp::setupErrorHandling()
 		mExceptionHandler = new google_breakpad::ExceptionHandler(
 			L"C:\\Temp\\", 0, windows_post_minidump_callback, 0, google_breakpad::ExceptionHandler::HANDLER_ALL);
 	}
-
+#endif
 #else
 	//
 	// Start up signal handling.
@@ -349,12 +350,7 @@ void LLApp::setupErrorHandling()
 	if(installHandler && (mExceptionHandler == 0))
 	{
 		std::string dumpPath = "/tmp/";
-		mExceptionHandler = new google_breakpad::ExceptionHandler(dumpPath, 
-																  0,
-																  &unix_post_minidump_callback,
-																  0,
-																  true,
-																  NULL);
+		mExceptionHandler = new google_breakpad::ExceptionHandler(dumpPath, 0, &unix_post_minidump_callback, 0, true);
 	}
 #endif
 
diff --git a/indra/llcommon/llapr.h b/indra/llcommon/llapr.h
index af33ce666f..034546c3f3 100644
--- a/indra/llcommon/llapr.h
+++ b/indra/llcommon/llapr.h
@@ -168,7 +168,7 @@ public:
 	void operator -=(Type x) { apr_atomic_sub32(&mData, apr_uint32_t(x)); }
 	void operator +=(Type x) { apr_atomic_add32(&mData, apr_uint32_t(x)); }
 	Type operator ++(int) { return apr_atomic_inc32(&mData); } // Type++
-	Type operator --(int) { return apr_atomic_dec32(&mData); } // Type--
+	Type operator --(int) { return apr_atomic_dec32(&mData); } // approximately --Type (0 if final is 0, non-zero otherwise)
 	
 private:
 	apr_uint32_t mData;
diff --git a/indra/llcommon/llhandle.h b/indra/llcommon/llhandle.h
new file mode 100644
index 0000000000..6af5e198d6
--- /dev/null
+++ b/indra/llcommon/llhandle.h
@@ -0,0 +1,217 @@
+/** 
+* @file llhandle.h
+* @brief "Handle" to an object (usually a floater) whose lifetime you don't
+* control.
+*
+* $LicenseInfo:firstyear=2001&license=viewerlgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2010, Linden Research, Inc.
+* 
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation;
+* version 2.1 of the License only.
+* 
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+* Lesser General Public License for more details.
+* 
+* You should have received a copy of the GNU Lesser General Public
+* License along with this library; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+* 
+* Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+* $/LicenseInfo$
+*/
+#ifndef LLHANDLE_H
+#define LLHANDLE_H
+
+#include "llpointer.h"
+#include <boost/type_traits/is_convertible.hpp>
+#include <boost/utility/enable_if.hpp>
+
+/**
+ * Helper object for LLHandle. Don't instantiate these directly, used
+ * exclusively by LLHandle.
+ */
+class LLTombStone : public LLRefCount
+{
+public:
+	LLTombStone(void* target = NULL) : mTarget(target) {}
+
+	void setTarget(void* target) { mTarget = target; }
+	void* getTarget() const { return mTarget; }
+private:
+	mutable void* mTarget;
+};
+
+/**
+ *	LLHandles are used to refer to objects whose lifetime you do not control or influence.  
+ *	Calling get() on a handle will return a pointer to the referenced object or NULL, 
+ *	if the object no longer exists.  Note that during the lifetime of the returned pointer, 
+ *	you are assuming that the object will not be deleted by any action you perform, 
+ *	or any other thread, as normal when using pointers, so avoid using that pointer outside of
+ *	the local code block.
+ * 
+ *  https://wiki.lindenlab.com/mediawiki/index.php?title=LLHandle&oldid=79669
+ *
+ * The implementation is like some "weak pointer" implementations. When we
+ * can't control the lifespan of the referenced object of interest, we can
+ * still instantiate a proxy object whose lifespan we DO control, and store in
+ * the proxy object a dumb pointer to the actual target. Then we just have to
+ * ensure that on destruction of the target object, the proxy's dumb pointer
+ * is set NULL.
+ *
+ * LLTombStone is our proxy object. LLHandle contains an LLPointer to the
+ * LLTombStone, so every copy of an LLHandle increments the LLTombStone's ref
+ * count as usual.
+ *
+ * One copy of the LLHandle, specifically the LLRootHandle, must be stored in
+ * the referenced object. Destroying the LLRootHandle is what NULLs the
+ * proxy's target pointer.
+ *
+ * Minor optimization: we want LLHandle's mTombStone to always be a valid
+ * LLPointer, saving some conditionals in dereferencing. That's the
+ * getDefaultTombStone() mechanism. The default LLTombStone object's target
+ * pointer is always NULL, so it's semantically identical to allowing
+ * mTombStone to be invalid.
+ */
+template <typename T>
+class LLHandle
+{
+	template <typename U> friend class LLHandle;
+	template <typename U> friend class LLHandleProvider;
+public:
+	LLHandle() : mTombStone(getDefaultTombStone()) {}
+
+	template<typename U>
+	LLHandle(const LLHandle<U>& other, typename boost::enable_if< typename boost::is_convertible<U*, T*> >::type* dummy = 0)
+	: mTombStone(other.mTombStone)
+	{}
+
+	bool isDead() const 
+	{ 
+		return mTombStone->getTarget() == NULL; 
+	}
+
+	void markDead() 
+	{ 
+		mTombStone = getDefaultTombStone();
+	}
+
+	T* get() const
+	{
+		return reinterpret_cast<T*>(mTombStone->getTarget());
+	}
+
+	friend bool operator== (const LLHandle<T>& lhs, const LLHandle<T>& rhs)
+	{
+		return lhs.mTombStone == rhs.mTombStone;
+	}
+	friend bool operator!= (const LLHandle<T>& lhs, const LLHandle<T>& rhs)
+	{
+		return !(lhs == rhs);
+	}
+	friend bool	operator< (const LLHandle<T>& lhs, const LLHandle<T>& rhs)
+	{
+		return lhs.mTombStone < rhs.mTombStone;
+	}
+	friend bool	operator> (const LLHandle<T>& lhs, const LLHandle<T>& rhs)
+	{
+		return lhs.mTombStone > rhs.mTombStone;
+	}
+
+protected:
+	LLPointer<LLTombStone> mTombStone;
+
+private:
+	typedef T* pointer_t;
+	static LLPointer<LLTombStone>& getDefaultTombStone()
+	{
+		static LLPointer<LLTombStone> sDefaultTombStone = new LLTombStone;
+		return sDefaultTombStone;
+	}
+};
+
+/**
+ * LLRootHandle isa LLHandle which must be stored in the referenced object.
+ * You can either store it directly and explicitly bind(this), or derive from
+ * LLHandleProvider (q.v.) which automates that for you. The essential point
+ * is that destroying the LLRootHandle (as a consequence of destroying the
+ * referenced object) calls unbind(), setting the LLTombStone's target pointer
+ * NULL.
+ */
+template <typename T>
+class LLRootHandle : public LLHandle<T>
+{
+public:
+	typedef LLRootHandle<T> self_t;
+	typedef LLHandle<T> base_t;
+
+	LLRootHandle(T* object) { bind(object); }
+	LLRootHandle() {};
+	~LLRootHandle() { unbind(); }
+
+	// this is redundant, since an LLRootHandle *is* an LLHandle
+	//LLHandle<T> getHandle() { return LLHandle<T>(*this); }
+
+	void bind(T* object) 
+	{ 
+		// unbind existing tombstone
+		if (LLHandle<T>::mTombStone.notNull())
+		{
+			if (LLHandle<T>::mTombStone->getTarget() == (void*)object) return;
+			LLHandle<T>::mTombStone->setTarget(NULL);
+		}
+		// tombstone reference counted, so no paired delete
+		LLHandle<T>::mTombStone = new LLTombStone((void*)object);
+	}
+
+	void unbind() 
+	{
+		LLHandle<T>::mTombStone->setTarget(NULL);
+	}
+
+	//don't allow copying of root handles, since there should only be one
+private:
+	LLRootHandle(const LLRootHandle& other) {};
+};
+
+/**
+ * Use this as a mixin for simple classes that need handles and when you don't
+ * want handles at multiple points of the inheritance hierarchy
+ */
+template <typename T>
+class LLHandleProvider
+{
+public:
+	LLHandle<T> getHandle() const
+	{ 
+		// perform lazy binding to avoid small tombstone allocations for handle
+		// providers whose handles are never referenced
+		mHandle.bind(static_cast<T*>(const_cast<LLHandleProvider<T>* >(this))); 
+		return mHandle; 
+	}
+
+protected:
+	typedef LLHandle<T> handle_type_t;
+	LLHandleProvider() 
+	{
+		// provided here to enforce T deriving from LLHandleProvider<T>
+	} 
+
+	template <typename U>
+	LLHandle<U> getDerivedHandle(typename boost::enable_if< typename boost::is_convertible<U*, T*> >::type* dummy = 0) const
+	{
+		LLHandle<U> downcast_handle;
+		downcast_handle.mTombStone = getHandle().mTombStone;
+		return downcast_handle;
+	}
+
+
+private:
+	mutable LLRootHandle<T> mHandle;
+};
+
+#endif
diff --git a/indra/llcommon/llinitparam.h b/indra/llcommon/llinitparam.h
index 99983a19cb..9a6d1eff5c 100644
--- a/indra/llcommon/llinitparam.h
+++ b/indra/llcommon/llinitparam.h
@@ -35,7 +35,7 @@
 #include <boost/shared_ptr.hpp>
 
 #include "llerror.h"
-#include "lltypeinfolookup.h"
+#include "llstl.h"
 
 namespace LLInitParam
 {
@@ -212,14 +212,6 @@ namespace LLInitParam
 
 	public:
 		
-		struct CompareTypeID
-		{
-			bool operator()(const std::type_info* lhs, const std::type_info* rhs) const
-			{
-				return lhs->before(*rhs);
-			}
-		};
-
 		typedef std::vector<std::pair<std::string, bool> >					name_stack_t;
 		typedef std::pair<name_stack_t::iterator, name_stack_t::iterator>	name_stack_range_t;
 		typedef std::vector<std::string>									possible_values_t;
@@ -228,9 +220,9 @@ namespace LLInitParam
 		typedef bool (*parser_write_func_t)(Parser& parser, const void*, name_stack_t&);
 		typedef boost::function<void (name_stack_t&, S32, S32, const possible_values_t*)>	parser_inspect_func_t;
 
-		typedef LLTypeInfoLookup<parser_read_func_t>		parser_read_func_map_t;
-		typedef LLTypeInfoLookup<parser_write_func_t>		parser_write_func_map_t;
-		typedef LLTypeInfoLookup<parser_inspect_func_t>		parser_inspect_func_map_t;
+		typedef std::map<const std::type_info*, parser_read_func_t>		parser_read_func_map_t;
+		typedef std::map<const std::type_info*, parser_write_func_t>	parser_write_func_map_t;
+		typedef std::map<const std::type_info*, parser_inspect_func_t>	parser_inspect_func_map_t;
 
 		Parser(parser_read_func_map_t& read_map, parser_write_func_map_t& write_map, parser_inspect_func_map_t& inspect_map)
 		:	mParseSilently(false),
diff --git a/indra/llcommon/llmemory.cpp b/indra/llcommon/llmemory.cpp
index 3b9758f996..70ad10ad55 100644
--- a/indra/llcommon/llmemory.cpp
+++ b/indra/llcommon/llmemory.cpp
@@ -61,6 +61,18 @@ BOOL LLMemory::sEnableMemoryFailurePrevention = FALSE;
 LLPrivateMemoryPoolManager::mem_allocation_info_t LLPrivateMemoryPoolManager::sMemAllocationTracker;
 #endif
 
+void ll_assert_aligned_func(uintptr_t ptr,U32 alignment)
+{
+#ifdef SHOW_ASSERT
+	// Redundant, place to set breakpoints.
+	if (ptr%alignment!=0)
+	{
+		llwarns << "alignment check failed" << llendl;
+	}
+	llassert(ptr%alignment==0);
+#endif
+}
+
 //static
 void LLMemory::initClass()
 {
@@ -240,21 +252,6 @@ U32 LLMemory::getAllocatedMemKB()
 	return sAllocatedMemInKB ;
 }
 
-void* ll_allocate (size_t size)
-{
-	if (size == 0)
-	{
-		llwarns << "Null allocation" << llendl;
-	}
-	void *p = malloc(size);
-	if (p == NULL)
-	{
-		LLMemory::freeReserve();
-		llerrs << "Out of memory Error" << llendl;
-	}
-	return p;
-}
-
 //----------------------------------------------------------------------------
 
 #if defined(LL_WINDOWS)
@@ -1353,7 +1350,7 @@ char* LLPrivateMemoryPool::allocate(U32 size)
 	//if the asked size larger than MAX_BLOCK_SIZE, fetch from heap directly, the pool does not manage it
 	if(size >= CHUNK_SIZE)
 	{
-		return (char*)malloc(size) ;
+		return (char*)ll_aligned_malloc_16(size) ;
 	}
 
 	char* p = NULL ;
@@ -1410,7 +1407,7 @@ char* LLPrivateMemoryPool::allocate(U32 size)
 			to_log = false ;
 		}
 
-		return (char*)malloc(size) ;
+		return (char*)ll_aligned_malloc_16(size) ;
 	}
 
 	return p ;
@@ -1429,7 +1426,7 @@ void LLPrivateMemoryPool::freeMem(void* addr)
 	
 	if(!chunk)
 	{
-		free(addr) ; //release from heap
+		ll_aligned_free_16(addr) ; //release from heap
 	}
 	else
 	{
@@ -1553,7 +1550,7 @@ LLPrivateMemoryPool::LLMemoryChunk* LLPrivateMemoryPool::addChunk(S32 chunk_inde
 
 	mReservedPoolSize += preferred_size + overhead ;
 
-	char* buffer = (char*)malloc(preferred_size + overhead) ;
+	char* buffer = (char*)ll_aligned_malloc_16(preferred_size + overhead) ;
 	if(!buffer)
 	{
 		return NULL ;
@@ -1621,7 +1618,7 @@ void LLPrivateMemoryPool::removeChunk(LLMemoryChunk* chunk)
 	mReservedPoolSize -= chunk->getBufferSize() ;
 	
 	//release memory
-	free(chunk->getBuffer()) ;
+	ll_aligned_free_16(chunk->getBuffer()) ;
 }
 
 U16 LLPrivateMemoryPool::findHashKey(const char* addr)
@@ -1965,7 +1962,7 @@ char* LLPrivateMemoryPoolManager::allocate(LLPrivateMemoryPool* poolp, U32 size,
 
 	if(!poolp)
 	{
-		p = (char*)malloc(size) ;
+		p = (char*)ll_aligned_malloc_16(size) ;
 	}
 	else
 	{
@@ -1994,7 +1991,7 @@ char* LLPrivateMemoryPoolManager::allocate(LLPrivateMemoryPool* poolp, U32 size)
 	}
 	else
 	{
-		return (char*)malloc(size) ;
+		return (char*)ll_aligned_malloc_16(size) ;
 	}
 }
 #endif
@@ -2019,7 +2016,7 @@ void  LLPrivateMemoryPoolManager::freeMem(LLPrivateMemoryPool* poolp, void* addr
 	{
 		if(!sPrivatePoolEnabled)
 		{
-			free(addr) ; //private pool is disabled.
+			ll_aligned_free_16(addr) ; //private pool is disabled.
 		}
 		else if(!sInstance) //the private memory manager is destroyed, try the dangling list
 		{
diff --git a/indra/llcommon/llmemory.h b/indra/llcommon/llmemory.h
index bbbdaa6497..10013e0f92 100644
--- a/indra/llcommon/llmemory.h
+++ b/indra/llcommon/llmemory.h
@@ -27,7 +27,13 @@
 #define LLMEMORY_H
 
 #include "llmemtype.h"
-#if LL_DEBUG
+
+#if LL_WINDOWS && LL_DEBUG
+#define LL_CHECK_MEMORY llassert(_CrtCheckMemory());
+#else
+#define LL_CHECK_MEMORY
+#endif
+
 inline void* ll_aligned_malloc( size_t size, int align )
 {
 	void* mem = malloc( size + (align - 1) + sizeof(void*) );
@@ -43,10 +49,11 @@ inline void ll_aligned_free( void* ptr )
 	free( ((void**)ptr)[-1] );
 }
 
+#if !LL_USE_TCMALLOC
 inline void* ll_aligned_malloc_16(size_t size) // returned hunk MUST be freed with ll_aligned_free_16().
 {
 #if defined(LL_WINDOWS)
-	return _mm_malloc(size, 16);
+	return _aligned_malloc(size, 16);
 #elif defined(LL_DARWIN)
 	return malloc(size); // default osx malloc is 16 byte aligned.
 #else
@@ -61,7 +68,7 @@ inline void* ll_aligned_malloc_16(size_t size) // returned hunk MUST be freed wi
 inline void ll_aligned_free_16(void *p)
 {
 #if defined(LL_WINDOWS)
-	_mm_free(p);
+	_aligned_free(p);
 #elif defined(LL_DARWIN)
 	return free(p);
 #else
@@ -69,10 +76,39 @@ inline void ll_aligned_free_16(void *p)
 #endif
 }
 
+inline void* ll_aligned_realloc_16(void* ptr, size_t size, size_t old_size) // returned hunk MUST be freed with ll_aligned_free_16().
+{
+#if defined(LL_WINDOWS)
+	return _aligned_realloc(ptr, size, 16);
+#elif defined(LL_DARWIN)
+	return realloc(ptr,size); // default osx malloc is 16 byte aligned.
+#else
+	//FIXME: memcpy is SLOW
+	void* ret = ll_aligned_malloc_16(size);
+	if (ptr)
+	{
+		if (ret)
+		{
+			// Only copy the size of the smallest memory block to avoid memory corruption.
+			memcpy(ret, ptr, llmin(old_size, size));
+		}
+		ll_aligned_free_16(ptr);
+	}
+	return ret;
+#endif
+}
+
+#else // USE_TCMALLOC
+// ll_aligned_foo_16 are not needed with tcmalloc
+#define ll_aligned_malloc_16 malloc
+#define ll_aligned_realloc_16(a,b,c) realloc(a,b)
+#define ll_aligned_free_16 free
+#endif // USE_TCMALLOC
+
 inline void* ll_aligned_malloc_32(size_t size) // returned hunk MUST be freed with ll_aligned_free_32().
 {
 #if defined(LL_WINDOWS)
-	return _mm_malloc(size, 32);
+	return _aligned_malloc(size, 32);
 #elif defined(LL_DARWIN)
 	return ll_aligned_malloc( size, 32 );
 #else
@@ -87,22 +123,13 @@ inline void* ll_aligned_malloc_32(size_t size) // returned hunk MUST be freed wi
 inline void ll_aligned_free_32(void *p)
 {
 #if defined(LL_WINDOWS)
-	_mm_free(p);
+	_aligned_free(p);
 #elif defined(LL_DARWIN)
 	ll_aligned_free( p );
 #else
 	free(p); // posix_memalign() is compatible with heap deallocator
 #endif
 }
-#else // LL_DEBUG
-// ll_aligned_foo are noops now that we use tcmalloc everywhere (tcmalloc aligns automatically at appropriate intervals)
-#define ll_aligned_malloc( size, align ) malloc(size)
-#define ll_aligned_free( ptr ) free(ptr)
-#define ll_aligned_malloc_16 malloc
-#define ll_aligned_free_16 free
-#define ll_aligned_malloc_32 malloc
-#define ll_aligned_free_32 free
-#endif // LL_DEBUG
 
 #ifndef __DEBUG_PRIVATE_MEM__
 #define __DEBUG_PRIVATE_MEM__  0
@@ -512,4 +539,13 @@ void  LLPrivateMemoryPoolTester::operator delete[](void* addr)
 
 // LLSingleton moved to llsingleton.h
 
+LL_COMMON_API void ll_assert_aligned_func(uintptr_t ptr,U32 alignment);
+
+#ifdef SHOW_ASSERT
+#define ll_assert_aligned(ptr,alignment) ll_assert_aligned_func(reinterpret_cast<uintptr_t>(ptr),((U32)alignment))
+#else
+#define ll_assert_aligned(ptr,alignment)
+#endif
+
+
 #endif
diff --git a/indra/llcommon/llqueuedthread.cpp b/indra/llcommon/llqueuedthread.cpp
index 1738c16dea..abf47a0f57 100644
--- a/indra/llcommon/llqueuedthread.cpp
+++ b/indra/llcommon/llqueuedthread.cpp
@@ -134,8 +134,8 @@ S32 LLQueuedThread::updateQueue(F32 max_time_ms)
 		pending = getPending();
 		if(pending > 0)
 		{
-		unpause();
-	}
+			unpause();
+		}
 	}
 	else
 	{
diff --git a/indra/llcommon/llregistry.h b/indra/llcommon/llregistry.h
index 36d7f7a44c..853c427a13 100644
--- a/indra/llcommon/llregistry.h
+++ b/indra/llcommon/llregistry.h
@@ -31,30 +31,16 @@
 
 #include <boost/type_traits.hpp>
 #include "llsingleton.h"
-#include "lltypeinfolookup.h"
+#include "llstl.h"
 
 template <typename T>
-class LLRegistryDefaultComparator
+struct LLRegistryDefaultComparator
 {
-	bool operator()(const T& lhs, const T& rhs) { return lhs < rhs; }
-};
-
-template <typename KEY, typename VALUE>
-struct LLRegistryMapSelector
-{
-    typedef std::map<KEY, VALUE> type;
-};
-
-template <typename VALUE>
-struct LLRegistryMapSelector<std::type_info*, VALUE>
-{
-    typedef LLTypeInfoLookup<VALUE> type;
-};
-
-template <typename VALUE>
-struct LLRegistryMapSelector<const std::type_info*, VALUE>
-{
-    typedef LLTypeInfoLookup<VALUE> type;
+	bool operator()(const T& lhs, const T& rhs) const
+	{
+		using std::less;
+		return less<T>()(lhs, rhs);
+	}
 };
 
 template <typename KEY, typename VALUE, typename COMPARATOR = LLRegistryDefaultComparator<KEY> >
@@ -72,7 +58,7 @@ public:
 	{
 		friend class LLRegistry<KEY, VALUE, COMPARATOR>;
 	public:
-		typedef typename LLRegistryMapSelector<KEY, VALUE>::type registry_map_t;
+		typedef std::map<KEY, VALUE, COMPARATOR> registry_map_t;
 
 		bool add(ref_const_key_t key, ref_const_value_t value)
 		{
diff --git a/indra/llcommon/llsdserialize.cpp b/indra/llcommon/llsdserialize.cpp
index 7f4f670ed0..6b549e4b6f 100644
--- a/indra/llcommon/llsdserialize.cpp
+++ b/indra/llcommon/llsdserialize.cpp
@@ -1451,9 +1451,12 @@ S32 LLSDBinaryFormatter::format(const LLSD& data, std::ostream& ostr, U32 option
 	}
 
 	case LLSD::TypeUUID:
+	{
 		ostr.put('u');
-		ostr.write((const char*)(&(data.asUUID().mData)), UUID_BYTES);
+		LLSD::UUID value = data.asUUID();
+		ostr.write((const char*)(&value.mData), UUID_BYTES);
 		break;
+	}
 
 	case LLSD::TypeString:
 		ostr.put('s');
diff --git a/indra/llcommon/llstl.h b/indra/llcommon/llstl.h
index 8ad12c9a03..d3941e1bc9 100644
--- a/indra/llcommon/llstl.h
+++ b/indra/llcommon/llstl.h
@@ -33,6 +33,7 @@
 #include <vector>
 #include <set>
 #include <deque>
+#include <typeinfo>
 
 // Use to compare the first element only of a pair
 // e.g. typedef std::set<std::pair<int, Data*>, compare_pair<int, Data*> > some_pair_set_t; 
@@ -470,4 +471,54 @@ llbind2nd(const _Operation& __oper, const _Tp& __x)
   return llbinder2nd<_Operation>(__oper, _Arg2_type(__x));
 }
 
+/**
+ * Compare std::type_info* pointers a la std::less. We break this out as a
+ * separate function for use in two different std::less specializations.
+ */
+inline
+bool before(const std::type_info* lhs, const std::type_info* rhs)
+{
+#if LL_LINUX && defined(__GNUC__) && ((__GNUC__ < 4) || (__GNUC__ == 4 && __GNUC_MINOR__ < 4))
+    // If we're building on Linux with gcc, and it's either gcc 3.x or
+    // 4.{0,1,2,3}, then we have to use a workaround. Note that we use gcc on
+    // Mac too, and some people build with gcc on Windows (cygwin or mingw).
+    // On Linux, different load modules may produce different type_info*
+    // pointers for the same type. Have to compare name strings to get good
+    // results.
+    return strcmp(lhs->name(), rhs->name()) < 0;
+#else  // not Linux, or gcc 4.4+
+    // Just use before(), as we normally would
+    return lhs->before(*rhs);
+#endif
+}
+
+/**
+ * Specialize std::less<std::type_info*> to use std::type_info::before().
+ * See MAINT-1175. It is NEVER a good idea to directly compare std::type_info*
+ * because, on Linux, you might get different std::type_info* pointers for the
+ * same type (from different load modules)!
+ */
+namespace std
+{
+	template <>
+	struct less<const std::type_info*>:
+		public std::binary_function<const std::type_info*, const std::type_info*, bool>
+	{
+		bool operator()(const std::type_info* lhs, const std::type_info* rhs) const
+		{
+			return before(lhs, rhs);
+		}
+	};
+
+	template <>
+	struct less<std::type_info*>:
+		public std::binary_function<std::type_info*, std::type_info*, bool>
+	{
+		bool operator()(std::type_info* lhs, std::type_info* rhs) const
+		{
+			return before(lhs, rhs);
+		}
+	};
+} // std
+
 #endif // LL_LLSTL_H
diff --git a/indra/llcommon/llstring.cpp b/indra/llcommon/llstring.cpp
index fa0eb9f72c..0c32679744 100644
--- a/indra/llcommon/llstring.cpp
+++ b/indra/llcommon/llstring.cpp
@@ -47,7 +47,8 @@ std::string ll_safe_string(const char* in)
 
 std::string ll_safe_string(const char* in, S32 maxlen)
 {
-	if(in) return std::string(in, maxlen);
+	if(in && maxlen > 0 ) return std::string(in, maxlen);
+
 	return std::string();
 }
 
diff --git a/indra/llcommon/llsys.cpp b/indra/llcommon/llsys.cpp
index 6073bcd0a6..c96f2191f3 100644
--- a/indra/llcommon/llsys.cpp
+++ b/indra/llcommon/llsys.cpp
@@ -944,13 +944,15 @@ LLSD LLMemoryInfo::loadStatsMap()
 	state.dwLength = sizeof(state);
 	GlobalMemoryStatusEx(&state);
 
-	stats.add("Percent Memory use", state.dwMemoryLoad);
-	stats.add("Total Physical KB",  state.ullTotalPhys/1024);
-	stats.add("Avail Physical KB",  state.ullAvailPhys/1024);
-	stats.add("Total page KB",      state.ullTotalPageFile/1024);
-	stats.add("Avail page KB",      state.ullAvailPageFile/1024);
-	stats.add("Total Virtual KB",   state.ullTotalVirtual/1024);
-	stats.add("Avail Virtual KB",   state.ullAvailVirtual/1024);
+	DWORDLONG div = 1024;
+
+	stats.add("Percent Memory use", state.dwMemoryLoad/div);
+	stats.add("Total Physical KB",  state.ullTotalPhys/div);
+	stats.add("Avail Physical KB",  state.ullAvailPhys/div);
+	stats.add("Total page KB",      state.ullTotalPageFile/div);
+	stats.add("Avail page KB",      state.ullAvailPageFile/div);
+	stats.add("Total Virtual KB",   state.ullTotalVirtual/div);
+	stats.add("Avail Virtual KB",   state.ullAvailVirtual/div);
 
 	PERFORMANCE_INFORMATION perf;
 	perf.cb = sizeof(perf);
@@ -982,15 +984,15 @@ LLSD LLMemoryInfo::loadStatsMap()
 	GetProcessMemoryInfo(GetCurrentProcess(), PPROCESS_MEMORY_COUNTERS(&pmem), sizeof(pmem));
 
 	stats.add("Page Fault Count",              pmem.PageFaultCount);
-	stats.add("PeakWorkingSetSize KB",         pmem.PeakWorkingSetSize/1024);
-	stats.add("WorkingSetSize KB",             pmem.WorkingSetSize/1024);
-	stats.add("QutaPeakPagedPoolUsage KB",     pmem.QuotaPeakPagedPoolUsage/1024);
-	stats.add("QuotaPagedPoolUsage KB",        pmem.QuotaPagedPoolUsage/1024);
-	stats.add("QuotaPeakNonPagedPoolUsage KB", pmem.QuotaPeakNonPagedPoolUsage/1024);
-	stats.add("QuotaNonPagedPoolUsage KB",     pmem.QuotaNonPagedPoolUsage/1024);
-	stats.add("PagefileUsage KB",              pmem.PagefileUsage/1024);
-	stats.add("PeakPagefileUsage KB",          pmem.PeakPagefileUsage/1024);
-	stats.add("PrivateUsage KB",               pmem.PrivateUsage/1024);
+	stats.add("PeakWorkingSetSize KB",         pmem.PeakWorkingSetSize/div);
+	stats.add("WorkingSetSize KB",             pmem.WorkingSetSize/div);
+	stats.add("QutaPeakPagedPoolUsage KB",     pmem.QuotaPeakPagedPoolUsage/div);
+	stats.add("QuotaPagedPoolUsage KB",        pmem.QuotaPagedPoolUsage/div);
+	stats.add("QuotaPeakNonPagedPoolUsage KB", pmem.QuotaPeakNonPagedPoolUsage/div);
+	stats.add("QuotaNonPagedPoolUsage KB",     pmem.QuotaNonPagedPoolUsage/div);
+	stats.add("PagefileUsage KB",              pmem.PagefileUsage/div);
+	stats.add("PeakPagefileUsage KB",          pmem.PeakPagefileUsage/div);
+	stats.add("PrivateUsage KB",               pmem.PrivateUsage/div);
 
 #elif LL_DARWIN
 
diff --git a/indra/llcommon/llthread.cpp b/indra/llcommon/llthread.cpp
index a6ad6b125c..1d56a52c32 100644
--- a/indra/llcommon/llthread.cpp
+++ b/indra/llcommon/llthread.cpp
@@ -71,6 +71,13 @@ LL_COMMON_API void assert_main_thread()
 	}
 }
 
+void LLThread::registerThreadID()
+{
+#if !LL_DARWIN
+	sThreadID = ++sIDIter;
+#endif
+}
+
 //
 // Handed to the APR thread creation function
 //
@@ -114,7 +121,7 @@ LLThread::LLThread(const std::string& name, apr_pool_t *poolp) :
 		apr_pool_create(&mAPRPoolp, NULL); // Create a subpool for this thread
 	}
 	mRunCondition = new LLCondition(mAPRPoolp);
-
+	mDataLock = new LLMutex(mAPRPoolp);
 	mLocalAPRFilePoolp = NULL ;
 }
 
@@ -173,7 +180,10 @@ void LLThread::shutdown()
 	}
 
 	delete mRunCondition;
-	mRunCondition = 0;
+	mRunCondition = NULL;
+
+	delete mDataLock;
+	mDataLock = NULL;
 	
 	if (mIsLocalPool && mAPRPoolp)
 	{
@@ -242,28 +252,30 @@ bool LLThread::runCondition(void)
 // Stop thread execution if requested until unpaused.
 void LLThread::checkPause()
 {
-	mRunCondition->lock();
+	mDataLock->lock();
 
 	// This is in a while loop because the pthread API allows for spurious wakeups.
 	while(shouldSleep())
 	{
+		mDataLock->unlock();
 		mRunCondition->wait(); // unlocks mRunCondition
+		mDataLock->lock();
 		// mRunCondition is locked when the thread wakes up
 	}
 	
- 	mRunCondition->unlock();
+ 	mDataLock->unlock();
 }
 
 //============================================================================
 
 void LLThread::setQuitting()
 {
-	mRunCondition->lock();
+	mDataLock->lock();
 	if (mStatus == RUNNING)
 	{
 		mStatus = QUITTING;
 	}
-	mRunCondition->unlock();
+	mDataLock->unlock();
 	wake();
 }
 
@@ -285,12 +297,12 @@ void LLThread::yield()
 
 void LLThread::wake()
 {
-	mRunCondition->lock();
+	mDataLock->lock();
 	if(!shouldSleep())
 	{
 		mRunCondition->signal();
 	}
-	mRunCondition->unlock();
+	mDataLock->unlock();
 }
 
 void LLThread::wakeLocked()
@@ -481,6 +493,19 @@ LLThreadSafeRefCount::LLThreadSafeRefCount() :
 {
 }
 
+LLThreadSafeRefCount::LLThreadSafeRefCount(const LLThreadSafeRefCount& src)
+{
+	if (sMutex)
+	{
+		sMutex->lock();
+	}
+	mRef = 0;
+	if (sMutex)
+	{
+		sMutex->unlock();
+	}
+}
+
 LLThreadSafeRefCount::~LLThreadSafeRefCount()
 { 
 	if (mRef != 0)
@@ -489,6 +514,7 @@ LLThreadSafeRefCount::~LLThreadSafeRefCount()
 	}
 }
 
+
 //============================================================================
 
 LLResponder::~LLResponder()
diff --git a/indra/llcommon/llthread.h b/indra/llcommon/llthread.h
index b52e70ab2e..5c8bbca2ca 100644
--- a/indra/llcommon/llthread.h
+++ b/indra/llcommon/llthread.h
@@ -88,6 +88,11 @@ public:
 
 	U32 getID() const { return mID; }
 
+	// Called by threads *not* created via LLThread to register some
+	// internal state used by LLMutex.  You must call this once early
+	// in the running thread to prevent collisions with the main thread.
+	static void registerThreadID();
+	
 private:
 	BOOL				mPaused;
 	
@@ -97,6 +102,7 @@ private:
 protected:
 	std::string			mName;
 	LLCondition*		mRunCondition;
+	LLMutex*			mDataLock;
 
 	apr_thread_t		*mAPRThreadp;
 	apr_pool_t			*mAPRPoolp;
@@ -122,15 +128,15 @@ protected:
 	inline void unlockData();
 	
 	// This is the predicate that decides whether the thread should sleep.  
-	// It should only be called with mRunCondition locked, since the virtual runCondition() function may need to access
+	// It should only be called with mDataLock locked, since the virtual runCondition() function may need to access
 	// data structures that are thread-unsafe.
 	bool shouldSleep(void) { return (mStatus == RUNNING) && (isPaused() || (!runCondition())); }
 
 	// To avoid spurious signals (and the associated context switches) when the condition may or may not have changed, you can do the following:
-	// mRunCondition->lock();
+	// mDataLock->lock();
 	// if(!shouldSleep())
 	//     mRunCondition->signal();
-	// mRunCondition->unlock();
+	// mDataLock->unlock();
 };
 
 //============================================================================
@@ -205,12 +211,12 @@ private:
 
 void LLThread::lockData()
 {
-	mRunCondition->lock();
+	mDataLock->lock();
 }
 
 void LLThread::unlockData()
 {
-	mRunCondition->unlock();
+	mDataLock->unlock();
 }
 
 
@@ -227,15 +233,27 @@ public:
 private:
 	static LLMutex* sMutex;
 
-private:
-	LLThreadSafeRefCount(const LLThreadSafeRefCount&); // not implemented
-	LLThreadSafeRefCount&operator=(const LLThreadSafeRefCount&); // not implemented
-
 protected:
 	virtual ~LLThreadSafeRefCount(); // use unref()
 	
 public:
 	LLThreadSafeRefCount();
+	LLThreadSafeRefCount(const LLThreadSafeRefCount&);
+	LLThreadSafeRefCount& operator=(const LLThreadSafeRefCount& ref) 
+	{
+		if (sMutex)
+		{
+			sMutex->lock();
+		}
+		mRef = 0;
+		if (sMutex)
+		{
+			sMutex->unlock();
+		}
+		return *this;
+	}
+
+
 	
 	void ref()
 	{
diff --git a/indra/llcommon/lltypeinfolookup.h b/indra/llcommon/lltypeinfolookup.h
index 7510cc12ed..0b6862444e 100644
--- a/indra/llcommon/lltypeinfolookup.h
+++ b/indra/llcommon/lltypeinfolookup.h
@@ -12,10 +12,50 @@
 #if ! defined(LL_LLTYPEINFOLOOKUP_H)
 #define LL_LLTYPEINFOLOOKUP_H
 
-#include "llsortedvector.h"
+#include <boost/unordered_map.hpp>
+#include <boost/functional/hash.hpp>
+#include <boost/optional.hpp>
+#include <functional>               // std::binary_function
 #include <typeinfo>
 
 /**
+ * The following helper classes are based on the Boost.Unordered documentation:
+ * http://www.boost.org/doc/libs/1_45_0/doc/html/unordered/hash_equality.html
+ */
+
+/**
+ * Compute hash for a string passed as const char*
+ */
+struct const_char_star_hash: public std::unary_function<const char*, std::size_t>
+{
+    std::size_t operator()(const char* str) const
+    {
+        std::size_t seed = 0;
+        for ( ; *str; ++str)
+        {
+            boost::hash_combine(seed, *str);
+        }
+        return seed;
+    }
+};
+
+/**
+ * Compute equality for strings passed as const char*
+ *
+ * I (nat) suspect that this is where the default behavior breaks for the
+ * const char* values returned from std::type_info::name(). If you compare the
+ * two const char* pointer values, as a naive, unspecialized implementation
+ * will surely do, they'll compare unequal.
+ */
+struct const_char_star_equal: public std::binary_function<const char*, const char*, bool>
+{
+    bool operator()(const char* lhs, const char* rhs) const
+    {
+        return strcmp(lhs, rhs) == 0;
+    }
+};
+
+/**
  * LLTypeInfoLookup is specifically designed for use cases for which you might
  * consider std::map<std::type_info*, VALUE>. We have several such data
  * structures in the viewer. The trouble with them is that at least on Linux,
@@ -23,88 +63,55 @@
  * different load modules will produce different std::type_info*.
  * LLTypeInfoLookup contains a workaround to address this issue.
  *
- * Specifically, when we don't find the passed std::type_info*,
- * LLTypeInfoLookup performs a linear search over registered entries to
- * compare name() strings. Presuming that this succeeds, we cache the new
- * (previously unrecognized) std::type_info* to speed future lookups.
- *
- * This worst-case fallback search (linear search with string comparison)
- * should only happen the first time we look up a given type from a particular
- * load module other than the one from which we initially registered types.
- * (However, a lookup which wouldn't succeed anyway will always have
- * worst-case performance.) This class is probably best used with less than a
- * few dozen different types.
+ * The API deliberately diverges from std::map in several respects:
+ * * It avoids iterators, not only begin()/end() but also as return values
+ *   from insert() and find(). This bypasses transform_iterator overhead.
+ * * Since we literally use compile-time types as keys, the essential insert()
+ *   and find() methods accept the key type as a @em template parameter,
+ *   accepting and returning value_type as a normal runtime value. This is to
+ *   permit future optimization (e.g. compile-time type hashing) without
+ *   changing the API.
  */
 template <typename VALUE>
 class LLTypeInfoLookup
 {
+    // Use this for our underlying implementation: lookup by
+    // std::type_info::name() string. This is one of the rare cases in which I
+    // dare use const char* directly, rather than std::string, because I'm
+    // sure that every value returned by std::type_info::name() is static.
+    // HOWEVER, specify our own hash + equality functors: naively comparing
+    // distinct const char* values won't work.
+    typedef boost::unordered_map<const char*, VALUE,
+                                 const_char_star_hash, const_char_star_equal> impl_map_type;
+
 public:
-    typedef LLTypeInfoLookup<VALUE> self;
-    typedef LLSortedVector<const std::type_info*, VALUE> vector_type;
-    typedef typename vector_type::key_type key_type;
-    typedef typename vector_type::mapped_type mapped_type;
-    typedef typename vector_type::value_type value_type;
-    typedef typename vector_type::iterator iterator;
-    typedef typename vector_type::const_iterator const_iterator;
+    typedef VALUE value_type;
 
     LLTypeInfoLookup() {}
 
-    iterator begin() { return mVector.begin(); }
-    iterator end()   { return mVector.end(); }
-    const_iterator begin() const { return mVector.begin(); }
-    const_iterator end()   const { return mVector.end(); }
-    bool empty() const { return mVector.empty(); }
-    std::size_t size() const { return mVector.size(); }
-
-    std::pair<iterator, bool> insert(const std::type_info* key, const VALUE& value)
-    {
-        return insert(value_type(key, value));
-    }
-
-    std::pair<iterator, bool> insert(const value_type& pair)
-    {
-        return mVector.insert(pair);
-    }
+    bool empty() const { return mMap.empty(); }
+    std::size_t size() const { return mMap.size(); }
 
-    // const find() forwards to non-const find(): this can alter mVector!
-    const_iterator find(const std::type_info* key) const
+    template <typename KEY>
+    bool insert(const value_type& value)
     {
-        return const_cast<self*>(this)->find(key);
+        // Obtain and store the std::type_info::name() string as the key.
+        // Return just the bool from std::map::insert()'s return pair.
+        return mMap.insert(typename impl_map_type::value_type(typeid(KEY).name(), value)).second;
     }
 
-    // non-const find() caches previously-unknown type_info* to speed future
-    // lookups.
-    iterator find(const std::type_info* key)
+    template <typename KEY>
+    boost::optional<value_type> find() const
     {
-        iterator found = mVector.find(key);
-        if (found != mVector.end())
-        {
-            // If LLSortedVector::find() found, great, we're done.
-            return found;
-        }
-        // Here we didn't find the passed type_info*. On Linux, though, even
-        // for the same type, typeid(sametype) produces a different type_info*
-        // when used in different load modules. So the fact that we didn't
-        // find the type_info* we seek doesn't mean this type isn't
-        // registered. Scan for matching name() string.
-        for (typename vector_type::iterator ti(mVector.begin()), tend(mVector.end());
-             ti != tend; ++ti)
-        {
-            if (std::string(ti->first->name()) == key->name())
-            {
-                // This unrecognized 'key' is for the same type as ti->first.
-                // To speed future lookups, insert a new entry that lets us
-                // look up ti->second using this same 'key'.
-                return insert(key, ti->second).first;
-            }
-        }
-        // We simply have never seen a type with this type_info* from any load
-        // module.
-        return mVector.end();
+        // Use the std::type_info::name() string as the key.
+        typename impl_map_type::const_iterator found = mMap.find(typeid(KEY).name());
+        if (found == mMap.end())
+            return boost::optional<value_type>();
+        return found->second;
     }
 
 private:
-    vector_type mVector;
+    impl_map_type mMap;
 };
 
 #endif /* ! defined(LL_LLTYPEINFOLOOKUP_H) */
diff --git a/indra/llcommon/lluri.cpp b/indra/llcommon/lluri.cpp
index b39ea0c6f2..21456a599b 100644
--- a/indra/llcommon/lluri.cpp
+++ b/indra/llcommon/lluri.cpp
@@ -37,6 +37,8 @@
 
 // system includes
 #include <boost/tokenizer.hpp>
+#include <boost/algorithm/string/find_iterator.hpp>
+#include <boost/algorithm/string/finder.hpp>
 
 void encode_character(std::ostream& ostr, std::string::value_type val)
 {
@@ -317,7 +319,7 @@ LLURI LLURI::buildHTTP(const std::string& prefix,
 					   const LLSD& path)
 {
 	LLURI result;
-	
+
 	// TODO: deal with '/' '?' '#' in host_port
 	if (prefix.find("://") != prefix.npos)
 	{
@@ -342,15 +344,41 @@ LLURI LLURI::buildHTTP(const std::string& prefix,
 			result.mEscapedPath += "/" + escapePathComponent(it->asString());
 		}
 	}
-	else if(path.isString())
+	else if (path.isString())
 	{
-		result.mEscapedPath += "/" + escapePathComponent(path.asString());
+		std::string pathstr(path);
+		// Trailing slash is significant in HTTP land. If caller specified,
+		// make a point of preserving.
+		std::string last_slash;
+		std::string::size_type len(pathstr.length());
+		if (len && pathstr[len-1] == '/')
+		{
+			last_slash = "/";
+		}
+
+		// Escape every individual path component, recombining with slashes.
+		for (boost::split_iterator<std::string::const_iterator>
+				 ti(pathstr, boost::first_finder("/")), tend;
+			 ti != tend; ++ti)
+		{
+			// Eliminate a leading slash or duplicate slashes anywhere. (Extra
+			// slashes show up here as empty components.) This test also
+			// eliminates a trailing slash, hence last_slash above.
+			if (! ti->empty())
+			{
+				result.mEscapedPath
+					+= "/" + escapePathComponent(std::string(ti->begin(), ti->end()));
+			}
+		}
+
+		// Reinstate trailing slash, if any.
+		result.mEscapedPath += last_slash;
 	} 
 	else if(path.isUndefined())
 	{
 	  // do nothing
 	}
-    else
+	else
 	{
 	  llwarns << "Valid path arguments to buildHTTP are array, string, or undef, you passed type" 
 			  << path.type() << llendl;
diff --git a/indra/llcommon/llversionviewer.h b/indra/llcommon/llversionviewer.h
index 2038681905..8585af0a29 100644
--- a/indra/llcommon/llversionviewer.h
+++ b/indra/llcommon/llversionviewer.h
@@ -29,7 +29,7 @@
 
 const S32 LL_VERSION_MAJOR = 3;
 const S32 LL_VERSION_MINOR = 4;
-const S32 LL_VERSION_PATCH = 0;
+const S32 LL_VERSION_PATCH = 4;
 const S32 LL_VERSION_BUILD = 0;
 
 const char * const LL_CHANNEL = "Second Life Developer";
diff --git a/indra/llcommon/tests/bitpack_test.cpp b/indra/llcommon/tests/bitpack_test.cpp
index 05289881d0..4c3bc674af 100644
--- a/indra/llcommon/tests/bitpack_test.cpp
+++ b/indra/llcommon/tests/bitpack_test.cpp
@@ -95,6 +95,7 @@ namespace tut
 		ensure("bitPack: individual unpack: 5", unpackbuffer[0] == (U8) str[5]);
 		unpack_bufsize = bitunpack.bitUnpack(unpackbuffer, 8*4); // Life
 		ensure_memory_matches("bitPack: 4 bytes unpack:", unpackbuffer, 4, str+6, 4);
+		ensure("keep compiler quiet", unpack_bufsize == unpack_bufsize);
 	}
 
 	// U32 packing
diff --git a/indra/llcommon/tests/lluri_test.cpp b/indra/llcommon/tests/lluri_test.cpp
index f6d4221256..4c64f15ca7 100644
--- a/indra/llcommon/tests/lluri_test.cpp
+++ b/indra/llcommon/tests/lluri_test.cpp
@@ -58,12 +58,12 @@ namespace tut
 			ensure_equals("escape/unescape escaped", uri_esc_2, uri_esc_1);
 		}
 	};
-	
+
 	typedef test_group<URITestData>	URITestGroup;
 	typedef URITestGroup::object	URITestObject;
 
 	URITestGroup uriTestGroup("LLURI");
-	
+
 	template<> template<>
 	void URITestObject::test<1>()
 	{
@@ -89,14 +89,14 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<2>()
 	{
-		// empty string
+		set_test_name("empty string");
 		checkParts(LLURI(""), "", "", "", "");
 	}
-	
+
 	template<> template<>
 	void URITestObject::test<3>()
 	{
-		// no scheme
+		set_test_name("no scheme");
 		checkParts(LLURI("foo"), "", "foo", "", "");
 		checkParts(LLURI("foo%3A"), "", "foo:", "", "");
 	}
@@ -104,7 +104,7 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<4>()
 	{
-		// scheme w/o paths
+		set_test_name("scheme w/o paths");
 		checkParts(LLURI("mailto:zero@ll.com"),
 			"mailto", "zero@ll.com", "", "");
 		checkParts(LLURI("silly://abc/def?foo"),
@@ -114,16 +114,16 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<5>()
 	{
-		// authority section
+		set_test_name("authority section");
 		checkParts(LLURI("http:///"),
 			"http", "///", "", "/");
-			
+
 		checkParts(LLURI("http://abc"),
 			"http", "//abc", "abc", "");
-			
+
 		checkParts(LLURI("http://a%2Fb/cd"),
 			"http", "//a/b/cd", "a/b", "/cd");
-			
+
 		checkParts(LLURI("http://host?"),
 			"http", "//host?", "host", "");
 	}
@@ -131,13 +131,13 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<6>()
 	{		
-		// path section
+		set_test_name("path section");
 		checkParts(LLURI("http://host/a/b/"),
 				"http", "//host/a/b/", "host", "/a/b/");
-				
+
 		checkParts(LLURI("http://host/a%3Fb/"),
 				"http", "//host/a?b/", "host", "/a?b/");
-				
+
 		checkParts(LLURI("http://host/a:b/"),
 				"http", "//host/a:b/", "host", "/a:b/");
 	}
@@ -145,16 +145,16 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<7>()
 	{		
-		// query string
+		set_test_name("query string");
 		checkParts(LLURI("http://host/?"),
 				"http", "//host/?", "host", "/", "");
-				
+
 		checkParts(LLURI("http://host/?x"),
 				"http", "//host/?x", "host", "/", "x");
-				
+
 		checkParts(LLURI("http://host/??"),
 				"http", "//host/??", "host", "/", "?");
-				
+
 		checkParts(LLURI("http://host/?%3F"),
 				"http", "//host/??", "host", "/", "?");
 	}
@@ -167,19 +167,44 @@ namespace tut
 		path.append("123");
 		checkParts(LLURI::buildHTTP("host", path),
 			"http", "//host/x/123", "host", "/x/123");
-		
+
 		LLSD query;
 		query["123"] = "12";
 		query["abcd"] = "abc";
 		checkParts(LLURI::buildHTTP("host", path, query),
 			"http", "//host/x/123?123=12&abcd=abc",
 			"host", "/x/123", "123=12&abcd=abc");
+
+		ensure_equals(LLURI::buildHTTP("host", "").asString(),
+					  "http://host");
+		ensure_equals(LLURI::buildHTTP("host", "/").asString(),
+					  "http://host/");
+		ensure_equals(LLURI::buildHTTP("host", "//").asString(),
+					  "http://host/");
+		ensure_equals(LLURI::buildHTTP("host", "dir name").asString(),
+					  "http://host/dir%20name");
+		ensure_equals(LLURI::buildHTTP("host", "dir name/").asString(),
+					  "http://host/dir%20name/");
+		ensure_equals(LLURI::buildHTTP("host", "/dir name").asString(),
+					  "http://host/dir%20name");
+		ensure_equals(LLURI::buildHTTP("host", "/dir name/").asString(),
+					  "http://host/dir%20name/");
+		ensure_equals(LLURI::buildHTTP("host", "dir name/subdir name").asString(),
+					  "http://host/dir%20name/subdir%20name");
+		ensure_equals(LLURI::buildHTTP("host", "dir name/subdir name/").asString(),
+					  "http://host/dir%20name/subdir%20name/");
+		ensure_equals(LLURI::buildHTTP("host", "/dir name/subdir name").asString(),
+					  "http://host/dir%20name/subdir%20name");
+		ensure_equals(LLURI::buildHTTP("host", "/dir name/subdir name/").asString(),
+					  "http://host/dir%20name/subdir%20name/");
+		ensure_equals(LLURI::buildHTTP("host", "//dir name//subdir name//").asString(),
+					  "http://host/dir%20name/subdir%20name/");
 	}
 
 	template<> template<>
 	void URITestObject::test<9>()
 	{
-		// test unescaped path components
+		set_test_name("test unescaped path components");
 		LLSD path;
 		path.append("x@*//*$&^");
 		path.append("123");
@@ -190,7 +215,7 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<10>()
 	{
-		// test unescaped query components
+		set_test_name("test unescaped query components");
 		LLSD path;
 		path.append("x");
 		path.append("123");
@@ -205,7 +230,7 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<11>()
 	{
-		// test unescaped host components
+		set_test_name("test unescaped host components");
 		LLSD path;
 		path.append("x");
 		path.append("123");
@@ -216,16 +241,16 @@ namespace tut
 			"http", "//hi123*33--}{:portstuffs/x/123?123=12&abcd=abc",
 			"hi123*33--}{:portstuffs", "/x/123", "123=12&abcd=abc");
 	}
-	
+
 	template<> template<>
 	void URITestObject::test<12>()
 	{
-		// test funky host_port values that are actually prefixes
-		
+		set_test_name("test funky host_port values that are actually prefixes");
+
 		checkParts(LLURI::buildHTTP("http://example.com:8080", LLSD()),
 			"http", "//example.com:8080",
 			"example.com:8080", "");
-			
+
 		checkParts(LLURI::buildHTTP("http://example.com:8080/", LLSD()),
 			"http", "//example.com:8080/",
 			"example.com:8080", "/");
@@ -242,7 +267,7 @@ namespace tut
 			"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
 			"0123456789"
 			"-._~";
-		// test escape
+		set_test_name("test escape");
 		ensure_equals("escaping", LLURI::escape("abcdefg", "abcdef"), "abcdef%67");
 		ensure_equals("escaping", LLURI::escape("|/&\\+-_!@", ""), "%7C%2F%26%5C%2B%2D%5F%21%40");
 		ensure_equals("escaping as query variable", 
@@ -259,13 +284,12 @@ namespace tut
 		cedilla.push_back( (char)0xA7 );
 		ensure_equals("escape UTF8", LLURI::escape( cedilla, unreserved), "%C3%A7");
 	}
-	
+
 
 	template<> template<>
 	void URITestObject::test<14>()
 	{
-		// make sure escape and unescape of empty strings return empty
-		// strings.
+		set_test_name("make sure escape and unescape of empty strings return empty strings.");
 		std::string uri_esc(LLURI::escape(""));
 		ensure("escape string empty", uri_esc.empty());
 		std::string uri_raw(LLURI::unescape(""));
@@ -275,7 +299,7 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<15>()
 	{
-		// do some round-trip tests
+		set_test_name("do some round-trip tests");
 		escapeRoundTrip("http://secondlife.com");
 		escapeRoundTrip("http://secondlife.com/url with spaces");
 		escapeRoundTrip("http://bad[domain]name.com/");
@@ -286,7 +310,7 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<16>()
 	{
-		// Test the default escaping
+		set_test_name("Test the default escaping");
 		// yes -- this mangles the url. This is expected behavior
 		std::string simple("http://secondlife.com");
 		ensure_equals(
@@ -302,7 +326,7 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<17>()
 	{
-		// do some round-trip tests with very long strings.
+		set_test_name("do some round-trip tests with very long strings.");
 		escapeRoundTrip("Welcome to Second Life.We hope you'll have a richly rewarding experience, filled with creativity, self expression and fun.The goals of the Community Standards are simple: treat each other with respect and without harassment, adhere to local standards as indicated by simulator ratings, and refrain from any hate activity which slurs a real-world individual or real-world community. Behavioral Guidelines - The Big Six");
 		escapeRoundTrip(
 			"'asset_data':b(12100){'task_id':ucc706f2d-0b68-68f8-11a4-f1043ff35ca0}\n{\n\tname\tObject|\n\tpermissions 0\n\t{\n\t\tbase_mask\t7fffffff\n\t\towner_mask\t7fffffff\n\t\tgroup_mask\t00000000\n\t\teveryone_mask\t00000000\n\t\tnext_owner_mask\t7fffffff\n\t\tcreator_id\t13fd9595-a47b-4d64-a5fb-6da645f038e0\n\t\towner_id\t3c115e51-04f4-523c-9fa6-98aff1034730\n\t\tlast_owner_id\t3c115e51-04f4-523c-9fa6-98aff1034730\n\t\tgroup_id\t00000000-0000-0000-0000-000000000000\n\t}\n\tlocal_id\t217444921\n\ttotal_crc\t323\n\ttype\t2\n\ttask_valid\t2\n\ttravel_access\t13\n\tdisplayopts\t2\n\tdisplaytype\tv\n\tpos\t-0.368634403\t0.00781063363\t-0.569040775\n\toldpos\t150.117996\t25.8658009\t8.19664001\n\trotation\t-0.06293071806430816650390625\t-0.6995697021484375\t-0.7002241611480712890625\t0.1277817934751510620117188\n\tchildpos\t-0.00499999989\t-0.0359999985\t0.307999998\n\tchildrot\t-0.515492737293243408203125\t-0.46601200103759765625\t0.529055416584014892578125\t0.4870323240756988525390625\n\tscale"
@@ -322,7 +346,7 @@ namespace tut
 			"D STRING RW SV 20f36c3a-b44b-9bc7-87f3-018bfdfc8cda\n\tscratchpad\t0\n\t{\n\t\n\t}\n\tsale_info\t0\n\t{\n\t\tsale_type\tnot\n\t\tsale_price\t10\n\t}\n\torig_asset_id\t8747acbc-d391-1e59-69f1-41d06830e6c0\n\torig_item_id\t20f36c3a-b44b-9bc7-87f3-018bfdfc8cda\n\tfrom_task_id\t3c115e51-04f4-523c-9fa6-98aff1034730\n\tcorrect_family_id\t00000000-0000-0000-0000-000000000000\n\thas_rezzed\t0\n\tpre_link_base_mask\t7fffffff\n\tlinked \tlinked\n\tdefault_pay_price\t-2\t1\t5\t10\t20\n}\n");
 	}
 
-	 
+
 	template<> template<>
 	void URITestObject::test<18>()
 	{
@@ -335,7 +359,7 @@ namespace tut
 		ensure_equals("pathmap",	u.pathArray()[1].asString(),	"login");
 		ensure_equals("query",		u.query(),		"first_name=Testert4&last_name=Tester&web_login_key=test");
 		ensure_equals("query map element", u.queryMap()["last_name"].asString(), "Tester");
-		
+
 		u = LLURI("secondlife://Da Boom/128/128/128");
 		// if secondlife is the scheme, LLURI should parse /128/128/128 as path, with Da Boom as authority
 		ensure_equals("scheme",		u.scheme(),		"secondlife");
@@ -350,7 +374,7 @@ namespace tut
 	template<> template<>
 	void URITestObject::test<19>()
 	{
-		// Parse about: schemes
+		set_test_name("Parse about: schemes");
 		LLURI u("about:blank?redirect-http-hack=secondlife%3A%2F%2F%2Fapp%2Flogin%3Ffirst_name%3DCallum%26last_name%3DLinden%26location%3Dspecify%26grid%3Dvaak%26region%3D%2FMorris%2F128%2F128%26web_login_key%3Defaa4795-c2aa-4c58-8966-763c27931e78");
 		ensure_equals("scheme",		u.scheme(),		"about");
 		ensure_equals("authority",	u.authority(),	"");
diff --git a/indra/llcommon/tests/reflection_test.cpp b/indra/llcommon/tests/reflection_test.cpp
index 59491cd1fe..8980ebb1f1 100644
--- a/indra/llcommon/tests/reflection_test.cpp
+++ b/indra/llcommon/tests/reflection_test.cpp
@@ -207,7 +207,7 @@ namespace tut
 			const LLReflective* reflective = property->get(aggregated_data); // Wrong reflective type, should throw exception.
 
 			// useless op to get rid of compiler warning.
-			reflective = NULL;
+			reflective = reflective;
 		}
 		catch(...)
 		{