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annotate src/share/vm/oops/annotations.hpp @ 14649:f6301b007a16

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6498581: ThreadInterruptTest3 produces wrong output on Windows Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set. Reviewed-by: acorn, kvn Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
author minqi
date Wed, 26 Feb 2014 15:20:41 -0800
parents 927a311d00f9
children
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1 /*
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2 * Copyright (c) 2012, 2013, 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_OOPS_ANNOTATIONS_HPP
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26 #define SHARE_VM_OOPS_ANNOTATIONS_HPP
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27
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28 #include "oops/metadata.hpp"
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29 #include "runtime/handles.hpp"
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30 #include "utilities/array.hpp"
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31 #include "utilities/exceptions.hpp"
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32 #include "utilities/globalDefinitions.hpp"
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33
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34
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35 class ClassLoaderData;
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36 class outputStream;
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37 class KlassSizeStats;
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38
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39 typedef Array<u1> AnnotationArray;
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40
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41 // Class to hold the various types of annotations. The only metadata that points
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42 // to this is InstanceKlass, or another Annotations instance if this is a
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43 // a type_annotation instance.
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44
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45 class Annotations: public MetaspaceObj {
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46
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47 // Annotations for this class, or null if none.
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48 AnnotationArray* _class_annotations;
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49 // Annotation objects (byte arrays) for fields, or null if no annotations.
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50 // Indices correspond to entries (not indices) in fields array.
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51 Array<AnnotationArray*>* _fields_annotations;
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52 // Type annotations for this class, or null if none.
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53 AnnotationArray* _class_type_annotations;
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54 Array<AnnotationArray*>* _fields_type_annotations;
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55
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56 public:
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57 // Allocate instance of this class
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58 static Annotations* allocate(ClassLoaderData* loader_data, TRAPS);
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59
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60 static void free_contents(ClassLoaderData* loader_data, Array<AnnotationArray*>* p);
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61 void deallocate_contents(ClassLoaderData* loader_data);
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62 DEBUG_ONLY(bool on_stack() { return false; }) // for template
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63
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64 // Sizing (in words)
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65 static int size() { return sizeof(Annotations) / wordSize; }
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66 #if INCLUDE_SERVICES
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67 void collect_statistics(KlassSizeStats *sz) const;
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68 #endif
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69
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70 // Constructor to initialize to null
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71 Annotations() : _class_annotations(NULL),
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72 _fields_annotations(NULL),
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73 _class_type_annotations(NULL),
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74 _fields_type_annotations(NULL) {}
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75
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76 AnnotationArray* class_annotations() const { return _class_annotations; }
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77 Array<AnnotationArray*>* fields_annotations() const { return _fields_annotations; }
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78 AnnotationArray* class_type_annotations() const { return _class_type_annotations; }
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79 Array<AnnotationArray*>* fields_type_annotations() const { return _fields_type_annotations; }
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80
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81 void set_class_annotations(AnnotationArray* md) { _class_annotations = md; }
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82 void set_fields_annotations(Array<AnnotationArray*>* md) { _fields_annotations = md; }
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83 void set_class_type_annotations(AnnotationArray* cta) { _class_type_annotations = cta; }
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84 void set_fields_type_annotations(Array<AnnotationArray*>* fta) { _fields_type_annotations = fta; }
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85
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86 // Turn metadata annotations into a Java heap object (oop)
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87 static typeArrayOop make_java_array(AnnotationArray* annotations, TRAPS);
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88
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89 bool is_klass() const { return false; }
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90 private:
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91 static julong count_bytes(Array<AnnotationArray*>* p);
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92 public:
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93 const char* internal_name() const { return "{constant pool}"; }
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94 #ifndef PRODUCT
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95 void print_on(outputStream* st) const;
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96 #endif
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97 void print_value_on(outputStream* st) const;
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98 };
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99 #endif // SHARE_VM_OOPS_ANNOTATIONS_HPP