internal static T LookupInternalFunction <T> (string name) where T : class
{
IntPtr rv;
if (runtime_library == IntPtr.Zero)
{
runtime_library = new IntPtr(-2 /* RTLD_DEFAULT */);
rv = Dlfcn.dlsym(runtime_library, name);
if (rv == IntPtr.Zero)
{
runtime_library = Dlfcn.dlopen("libxammac.dylib", 0);
if (runtime_library == IntPtr.Zero)
{
runtime_library = Dlfcn.dlopen(Path.Combine(Path.GetDirectoryName(typeof(NSApplication).Assembly.Location), "libxammac.dylib"), 0);
}
if (runtime_library == IntPtr.Zero)
{
throw new DllNotFoundException("Could not find the runtime library libxammac.dylib");
}
rv = Dlfcn.dlsym(runtime_library, name);
}
}
else
{
rv = Dlfcn.dlsym(runtime_library, name);
}
if (rv == IntPtr.Zero)
{
throw new EntryPointNotFoundException(string.Format("Could not find the runtime method '{0}'", name));
}
return((T)(object)Marshal.GetDelegateForFunctionPointer(rv, typeof(T)));
}
public static unsafe IntPtr CachePointer(IntPtr handle, string constant, IntPtr *storage)
{
if (*storage == IntPtr.Zero)
{
*storage = Dlfcn.GetIntPtr(handle, constant);
}
return(*storage);
}