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annotate src/share/vm/prims/whitebox.hpp @ 20804:7848fc12602b

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Merge with jdk8u40-b25
author Gilles Duboscq <gilles.m.duboscq@oracle.com>
date Tue, 07 Apr 2015 14:58:49 +0200
parents 52b4284cb496 e2452c3ff7fb
children
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1 /*
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2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_PRIMS_WHITEBOX_HPP
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26 #define SHARE_VM_PRIMS_WHITEBOX_HPP
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27
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28 #include "prims/jni.h"
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29
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30 #include "memory/allocation.hpp"
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31 #include "oops/oopsHierarchy.hpp"
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32 #include "oops/symbol.hpp"
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33 #include "runtime/interfaceSupport.hpp"
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34
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35 // Entry macro to transition from JNI to VM state.
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36
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37 #define WB_ENTRY(result_type, header) JNI_ENTRY(result_type, header)
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38 #define WB_END JNI_END
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39 #define WB_METHOD_DECLARE(result_type) extern "C" result_type JNICALL
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40
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41 #define CHECK_JNI_EXCEPTION_(env, value) \
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42 do { \
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43 JavaThread* THREAD = JavaThread::thread_from_jni_environment(env); \
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44 if (HAS_PENDING_EXCEPTION) { \
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45 return(value); \
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46 } \
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47 } while (0)
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48
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49 #define CHECK_JNI_EXCEPTION(env) \
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50 do { \
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51 JavaThread* THREAD = JavaThread::thread_from_jni_environment(env); \
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52 if (HAS_PENDING_EXCEPTION) { \
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53 return; \
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54 } \
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55 } while (0)
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56
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57 class WhiteBox : public AllStatic {
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58 private:
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59 static bool _used;
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60 public:
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61 static bool used() { return _used; }
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62 static void set_used() { _used = true; }
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63 static int offset_for_field(const char* field_name, oop object,
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64 Symbol* signature_symbol);
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65 static const char* lookup_jstring(const char* field_name, oop object);
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66 static bool lookup_bool(const char* field_name, oop object);
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67
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68 static int array_bytes_to_length(size_t bytes);
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69 static void register_methods(JNIEnv* env, jclass wbclass, JavaThread* thread,
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70 JNINativeMethod* method_array, int method_count);
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71 static void register_extended(JNIEnv* env, jclass wbclass, JavaThread* thread);
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72 };
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73
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75
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76 #endif // SHARE_VM_PRIMS_WHITEBOX_HPP