private IntPtr RegisterPlatformSpecific(string absoluteFilePath,
out NativeLibrary.SymbolLookupDelegate symbolLookup)
{
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
var handle = Posix.dlopen(absoluteFilePath, Posix.RTLD_LAZY | Posix.RTLD_GLOBAL);
if (handle == IntPtr.Zero)
{
throw new NativeLoaderException(
$"Failed to load '{absoluteFilePath}'. dlerror: {Marshal.PtrToStringAnsi(Posix.dlerror())}");
}
symbolLookup = Posix.dlsym;
return(handle);
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
var handle = Posix.dlopen(absoluteFilePath, Posix.RTLD_LAZY | Posix.RTLD_GLOBAL);
if (handle == IntPtr.Zero)
{
throw new NativeLoaderException(
$"Failed to load '{absoluteFilePath}'. dlerror: {Marshal.PtrToStringAnsi(Posix.dlerror())}");
}
symbolLookup = Posix.dlsym;
return(handle);
}
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
var dllDirectory = Path.GetDirectoryName(absoluteFilePath);
var fileName = Path.GetFileName(absoluteFilePath);
Windows.SetDllDirectory(dllDirectory);
var handle = Windows.LoadLibrary(fileName);
if (handle == IntPtr.Zero)
{
throw new NativeLoaderException(
$"Failed to load '{absoluteFilePath}'. LoadLibrary: {Windows.GetLastError():X8}");
}
symbolLookup = Windows.GetProcAddress;
return(handle);
}
throw new NativeLoaderException($"Platform '{Environment.OSVersion.Platform}' is not supported.");
}