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#include "UnityPrefix.h"
#include "LoadDylib.h"
#include <map>
#if UNITY_OSX || UNITY_LINUX
#include "dlfcn.h"
#endif
#if UNITY_WIN
#include "PlatformDependent/Win/PathUnicodeConversion.h"
#endif
#if UNITY_WINRT
#include "PlatformDependent/MetroPlayer/MetroUtils.h"
#endif
using namespace std;
map<string, void*> gLoaded;
std::string GetPathWithPlatformSpecificDllExtension(const std::string& path)
{
string extended = path;
#if UNITY_OSX
extended += ".dylib";
#elif UNITY_WIN
extended += ".dll";
#elif UNITY_LINUX
extended += ".so";
#else
ErrorString ("Dynamic module loading not implemented");
#endif
return extended;
}
void* LoadDynamicLibrary (const std::string& absolutePath)
{
void* library = NULL;
// load library if needed
if (gLoaded.find(absolutePath) != gLoaded.end())
{
library = gLoaded[absolutePath];
}
else
{
#if UNITY_OSX || UNITY_LINUX
/// RTLD_LOCAL is supposedly default and also completely fails on 10.3.9
library = dlopen (absolutePath.c_str (), RTLD_NOW);
if ( !library )
ErrorStringMsg( "ERROR: LoadDynamicLibrary(): %s\n", dlerror() );
#elif UNITY_WIN
#if UNITY_WINRT
HMODULE module = LoadPackagedLibrary (ConvertToWindowsPath(absolutePath.c_str())->Data(), 0);
#else
std::wstring widePath;
ConvertUnityPathName( absolutePath, widePath );
HINSTANCE module = LoadLibraryW( widePath.c_str() );
#endif
library = module;
#endif
if (library)
{
gLoaded[absolutePath] = library;
}
}
return library;
}
void* LoadAndLookupSymbol (const std::string& absolutePath, const std::string& name)
{
void* library = LoadDynamicLibrary(absolutePath);
void* symbol = LookupSymbol(library, name);
return symbol;
}
void UnloadDynamicLibrary (void* libraryReference)
{
map<string, void*>::iterator it;
for (it = gLoaded.begin(); it != gLoaded.end(); ++it)
{
if (it->second == libraryReference)
{
#if UNITY_OSX || UNITY_LINUX
dlclose (it->second);
#elif UNITY_WIN
FreeLibrary( (HMODULE)it->second );
#endif
gLoaded.erase(it);
break;
}
}
}
void UnloadDynamicLibrary (const std::string& absolutePath)
{
if (gLoaded.count (absolutePath) && gLoaded[absolutePath])
{
#if UNITY_OSX || UNITY_LINUX
dlclose (gLoaded[absolutePath]);
#elif UNITY_WIN
FreeLibrary( (HMODULE)gLoaded[absolutePath] );
#endif
}
gLoaded.erase (absolutePath);
}
bool LoadAndLookupSymbols (const char* path, ...)
{
va_list ap;
va_start (ap, path);
while (true)
{
const char* symbolName = va_arg (ap, const char*);
if (symbolName == NULL)
return true;
void** functionHandle = va_arg (ap, void**);
AssertIf(functionHandle == NULL);
*functionHandle = LoadAndLookupSymbol (path, symbolName);
if (*functionHandle == NULL)
return false;
}
return false;
}
void* LookupSymbol(void* libraryReference, const std::string& symbolName)
{
#if UNITY_OSX || UNITY_LINUX
void *sym = dlsym (libraryReference, symbolName.c_str ());
if (!sym)
ErrorStringMsg("Could not load symbol %s : %s\n", symbolName.c_str(), dlerror());
return sym;
#elif UNITY_WIN
if( !libraryReference )
return NULL;
return GetProcAddress( (HMODULE)libraryReference, symbolName.c_str() );
#else
ErrorStringMsg("LoadAndLookupSymbol is not supported on this platform.\n");
return NULL;
#endif
}
/*
#include <Carbon/Carbon.h>
#import <mach-o/dyld.h>
#import <stdlib.h>
#import <string.h>
#include "FileUtilities.h"
using namespace std;
CFBundleRef LoadDynamicLibrary (const string& absolutePath)
{
CFStringRef cfstring = CFStringCreateWithCString (NULL, ResolveSymlinks(absolutePath).c_str (), kCFStringEncodingUTF8);
CFURLRef url = CFURLCreateWithFileSystemPath(
kCFAllocatorDefault,
cfstring,
kCFURLPOSIXPathStyle,
false);
// CFURLRef url = CFURLCreateFromFileSystemRepresentation (kCFAllocatorDefault, (const UInt8*)absolutePath.c_str (), absolutePath.size (), false);
CFBundleRef bundle = CFBundleCreate (NULL, url);
CFRelease (url);
CFRelease (cfstring);
if (!bundle)
return false;
// Check if already loaded
if (CFBundleIsExecutableLoaded (bundle))
return bundle;
// Load the bundle
if (!CFBundleLoadExecutable (bundle))
return NULL;
return bundle;
}
void UnloadDynamicLibrary (const string& absolutePath)
{
// CFURLRef url = CFURLCreateFromFileSystemRepresentation (kCFAllocatorDefault, (const UInt8*)absolutePath.c_str (), absolutePath.size (), false);
CFStringRef cfstring = CFStringCreateWithCString (kCFAllocatorDefault, absolutePath.c_str (), kCFStringEncodingUTF8);
CFURLRef url = CFURLCreateWithFileSystemPath(
kCFAllocatorDefault,
cfstring,
kCFURLPOSIXPathStyle,
true);
CFBundleRef bundle = CFBundleCreate (kCFAllocatorDefault, url);
CFRelease (url);
CFRelease (cfstring);
if (!bundle)
return;
CFBundleUnloadExecutable (bundle);
}
void* LoadAndLookupSymbol (const std::string& absolutePath, const std::string& name)
{
CFBundleRef bundle = LoadDynamicLibrary (absolutePath);
CFStringRef cfstring = CFStringCreateWithCString (kCFAllocatorDefault, name.c_str (), kCFStringEncodingUTF8);
if (bundle == NULL)
return NULL;
return CFBundleGetFunctionPointerForName(bundle, cfstring);
}*/
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