src/hotspot/os/windows/iphlp_interface.hpp
changeset 50879 d90c3cbf13df
child 53244 9807daeb47c4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/os/windows/iphlp_interface.hpp	Thu Jun 28 15:06:55 2018 +0200
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_WINDOWS_VM_IPHLP_INTERFACE_HPP
+#define OS_WINDOWS_VM_IPHLP_INTERFACE_HPP
+
+#include "memory/allocation.hpp"
+#include "utilities/macros.hpp"
+#include <WinSock2.h>
+#include <ws2ipdef.h>
+#include <iphlpapi.h>
+
+class IphlpDll : public AllStatic {
+ private:
+  static LONG       _iphlp_reference_count;
+  static LONG       _critical_section;
+  static LONG       _initialized;
+  static HMODULE    _hModule;
+  static void       initialize(void);
+  static DWORD(WINAPI *_GetIfTable2)(PMIB_IF_TABLE2*);
+  static DWORD(WINAPI *_FreeMibTable)(PVOID);
+
+ public:
+  static DWORD GetIfTable2(PMIB_IF_TABLE2*);
+  static DWORD FreeMibTable(PVOID);
+  static bool       IphlpAttach(void);
+  static bool       IphlpDetach(void);
+};
+
+#endif // OS_WINDOWS_VM_IPHLP_INTERFACE_HPP