/*

 * Copyright (c) 1997, 2015, 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

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 */

#ifndef SHARE_VM_PRIMS_NATIVELOOKUP_HPP

#define SHARE_VM_PRIMS_NATIVELOOKUP_HPP

#include "memory/allocation.hpp"

#include "runtime/handles.hpp"

// NativeLookup provides an interface for finding DLL entry points for

// Java native functions.

class NativeLookup : AllStatic {

 private:

  // JNI name computation

  static char* pure_jni_name(const methodHandle& method);

  static char* long_jni_name(const methodHandle& method);

  static char* critical_jni_name(const methodHandle& method);

  // Style specific lookup

  static address lookup_style(const methodHandle& method, char* pure_name, const char* long_name, int args_size, bool os_style, bool& in_base_library, TRAPS);

  static address lookup_critical_style(const methodHandle& method, char* pure_name, const char* long_name, int args_size, bool os_style);

  static address lookup_base (const methodHandle& method, bool& in_base_library, TRAPS);

  static address lookup_entry(const methodHandle& method, bool& in_base_library, TRAPS);

  static address lookup_entry_prefixed(const methodHandle& method, bool& in_base_library, TRAPS);

 public:

  // Lookup native function. May throw UnsatisfiedLinkError.

  static address lookup(const methodHandle& method, bool& in_base_library, TRAPS);

  static address lookup_critical_entry(const methodHandle& method);

  // Lookup native functions in base library.

  static address base_library_lookup(const char* class_name, const char* method_name, const char* signature);

};

#endif // SHARE_VM_PRIMS_NATIVELOOKUP_HPP