[quic] add vfd check for quic

Author: wkgcass

base/src/main/java/io/vproxy/base/component/elgroup/EventLoopGroup.java

@@ -21,6 +21,8 @@
 import io.vproxy.pni.PNIRef;
 import io.vproxy.pni.PooledAllocator;
 import io.vproxy.pni.array.IntArray;
+import io.vproxy.vfd.FDProvider;
+import io.vproxy.vfd.posix.PosixFDs;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -74,6 +76,9 @@ private Registration initQuic() throws XException {
         if (!MsQuicInitializer.isSupported()) {
             throw new XException("msquic is not supported");
         }
+        if (!(FDProvider.get().getProvided() instanceof PosixFDs)) {
+            throw new XException("vfd impl (" + FDProvider.get().getProvided() + ") does not support quic, please add -Dvfd=posix on startup");
+        }
 
         var api = ApiTables.V2;
         var allocator = PooledAllocator.ofUnsafePooled();