1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/prims/whitebox.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,69 @@
1.4 +/*
1.5 + * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef SHARE_VM_PRIMS_WHITEBOX_HPP
1.29 +#define SHARE_VM_PRIMS_WHITEBOX_HPP
1.30 +
1.31 +#include "prims/jni.h"
1.32 +
1.33 +#include "memory/allocation.hpp"
1.34 +#include "oops/oopsHierarchy.hpp"
1.35 +
1.36 +// Entry macro to transition from JNI to VM state.
1.37 +
1.38 +#define WB_ENTRY(result_type, header) JNI_ENTRY(result_type, header)
1.39 +#define WB_END JNI_END
1.40 +#define WB_METHOD_DECLARE(result_type) extern "C" result_type JNICALL
1.41 +
1.42 +#define CHECK_JNI_EXCEPTION_(env, value) \
1.43 + do { \
1.44 + JavaThread* THREAD = JavaThread::thread_from_jni_environment(env); \
1.45 + if (HAS_PENDING_EXCEPTION) { \
1.46 + return(value); \
1.47 + } \
1.48 + } while (0)
1.49 +
1.50 +#define CHECK_JNI_EXCEPTION(env) \
1.51 + do { \
1.52 + JavaThread* THREAD = JavaThread::thread_from_jni_environment(env); \
1.53 + if (HAS_PENDING_EXCEPTION) { \
1.54 + return; \
1.55 + } \
1.56 + } while (0)
1.57 +
1.58 +class WhiteBox : public AllStatic {
1.59 + private:
1.60 + static bool _used;
1.61 + public:
1.62 + static bool used() { return _used; }
1.63 + static void set_used() { _used = true; }
1.64 + static int offset_for_field(const char* field_name, oop object,
1.65 + Symbol* signature_symbol);
1.66 + static const char* lookup_jstring(const char* field_name, oop object);
1.67 + static bool lookup_bool(const char* field_name, oop object);
1.68 +};
1.69 +
1.70 +
1.71 +
1.72 +#endif // SHARE_VM_PRIMS_WHITEBOX_HPP
