From f2d10c1590503ff960bf55758bf6898d7b06ac80 Mon Sep 17 00:00:00 2001
From: cfcohen <cfcohen@verizon.net>
Date: Fri, 4 Dec 2015 19:55:00 -0500
Subject: [PATCH] Revert "Remove unnecessary files."

This reverts commit 81336cc3e9cef439fc103ec40c8e6110cfdfe225.
---
 project/vc9/nvcore/nvcore.vcproj |  8 ++---
 src/nvcore/CMakeLists.txt        |  1 +
 src/nvcore/Library.cpp           | 45 ++++++++++++++++++++++++++++
 src/nvcore/Library.h             | 51 ++++++++++++++++++++++++++++++++
 4 files changed, 99 insertions(+), 6 deletions(-)
 create mode 100644 src/nvcore/Library.cpp
 create mode 100644 src/nvcore/Library.h

diff --git a/project/vc9/nvcore/nvcore.vcproj b/project/vc9/nvcore/nvcore.vcproj
index 719e96f..871e896 100644
--- a/project/vc9/nvcore/nvcore.vcproj
+++ b/project/vc9/nvcore/nvcore.vcproj
@@ -290,10 +290,6 @@
 			RelativePath="..\..\..\src\nvcore\Array.h"
 			>
 		</File>
-		<File
-			RelativePath="..\..\..\src\nvcore\Array.inl"
-			>
-		</File>
 		<File
 			RelativePath="..\..\..\src\nvcore\Debug.cpp"
 			>
@@ -315,11 +311,11 @@
 			>
 		</File>
 		<File
-			RelativePath="..\..\..\src\nvcore\ForEach.h"
+			RelativePath="..\..\..\src\nvcore\Library.cpp"
 			>
 		</File>
 		<File
-			RelativePath="..\..\..\src\nvcore\Hash.h"
+			RelativePath="..\..\..\src\nvcore\Library.h"
 			>
 		</File>
 		<File
diff --git a/src/nvcore/CMakeLists.txt b/src/nvcore/CMakeLists.txt
index 9246768..ee8bdc0 100644
--- a/src/nvcore/CMakeLists.txt
+++ b/src/nvcore/CMakeLists.txt
@@ -10,6 +10,7 @@ SET(CORE_SRCS
     DefsVcWin32.h
     FileSystem.h FileSystem.cpp
     ForEach.h
+    Library.h Library.cpp
     Memory.h Memory.cpp
     Ptr.h
     RefCounted.h
diff --git a/src/nvcore/Library.cpp b/src/nvcore/Library.cpp
new file mode 100644
index 0000000..d757e8f
--- /dev/null
+++ b/src/nvcore/Library.cpp
@@ -0,0 +1,45 @@
+
+#include "Library.h"
+#include "Debug.h"
+
+#if NV_OS_WIN32
+#define WIN32_LEAN_AND_MEAN
+#define VC_EXTRALEAN
+#include <windows.h>
+#elif NV_OS_XBOX
+#include <Xtl.h>
+#else
+#include <dlfcn.h>
+#endif
+
+
+
+void * nvLoadLibrary(const char * name)
+{
+#if NV_OS_WIN32
+	return (void *)LoadLibraryExA( name, NULL, 0 );
+#elif NV_OS_XBOX
+    return (void *)LoadLibraryA( name );
+#else
+	return dlopen(name, RTLD_LAZY);
+#endif
+}
+
+void nvUnloadLibrary(void * handle)
+{
+	nvDebugCheck(handle != NULL);
+#if NV_OS_WIN32 || NV_OS_XBOX
+	FreeLibrary((HMODULE)handle);
+#else
+	dlclose(handle);
+#endif
+}
+
+void * nvBindSymbol(void * handle, const char * symbol)
+{
+#if NV_OS_WIN32 || NV_OS_XBOX
+	return (void *)GetProcAddress((HMODULE)handle, symbol);
+#else
+	return (void *)dlsym(handle, symbol);
+#endif	
+}
diff --git a/src/nvcore/Library.h b/src/nvcore/Library.h
new file mode 100644
index 0000000..999e662
--- /dev/null
+++ b/src/nvcore/Library.h
@@ -0,0 +1,51 @@
+// This code is in the public domain -- castano@gmail.com
+
+#pragma once
+#ifndef NV_CORE_LIBRARY_H
+#define NV_CORE_LIBRARY_H
+
+#include "nvcore.h"
+
+#if NV_OS_WIN32
+#define LIBRARY_NAME(name)	#name ".dll"
+#elif NV_OS_DARWIN
+#define NV_LIBRARY_NAME(name)	"lib" #name ".dylib"
+#else
+#define NV_LIBRARY_NAME(name)	"lib" #name ".so"
+#endif
+
+NVCORE_API void * nvLoadLibrary(const char * name);
+NVCORE_API void nvUnloadLibrary(void * lib);
+NVCORE_API void * nvBindSymbol(void * lib, const char * symbol);
+
+class NVCORE_CLASS Library
+{
+public:
+	Library(const char * name)
+	{
+		handle = nvLoadLibrary(name);
+	}
+	~Library()
+	{
+		if (isValid())
+		{
+			nvUnloadLibrary(handle);
+		}
+	}
+	
+	bool isValid() const
+	{
+		return handle != NULL;
+	}
+	
+	void * bindSymbol(const char * symbol)
+	{
+		return nvBindSymbol(handle, symbol);
+	}
+	
+private:
+	void * handle;
+};
+
+
+#endif // NV_CORE_LIBRARY_H