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annotate src/share/vm/runtime/handles.inline.hpp @ 10292:acac2b03a07f

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8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set Summary: The VM exits when the condition in the subject line applies. The fix sets InitialTenuringThreshold to MaxTenuringThreshold if it is larger than MaxTenuringThreshold and InitialTenuringThreshold has not been set (is default). Reviewed-by: jwilhelm, jmasa, brutisso, johnc
author tschatzl
date Thu, 16 May 2013 23:51:51 +0200
parents cc6a617fffd2
children 4f9a42c33738
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1 /*
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2 * Copyright (c) 1998, 2012, 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_RUNTIME_HANDLES_INLINE_HPP
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26 #define SHARE_VM_RUNTIME_HANDLES_INLINE_HPP
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27
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28 #include "runtime/handles.hpp"
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29 #include "runtime/thread.inline.hpp"
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30
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31 // these inline functions are in a separate file to break an include cycle
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32 // between Thread and Handle
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33
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34 inline Handle::Handle(oop obj) {
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35 if (obj == NULL) {
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36 _handle = NULL;
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37 } else {
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38 _handle = Thread::current()->handle_area()->allocate_handle(obj);
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39 }
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40 }
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41
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42
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43 #ifndef ASSERT
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44 inline Handle::Handle(Thread* thread, oop obj) {
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45 assert(thread == Thread::current(), "sanity check");
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46 if (obj == NULL) {
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47 _handle = NULL;
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48 } else {
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49 _handle = thread->handle_area()->allocate_handle(obj);
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50 }
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51 }
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52 #endif // ASSERT
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53
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54 // Constructors for metadata handles
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55 #define DEF_METADATA_HANDLE_FN(name, type) \
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56 inline name##Handle::name##Handle(type* obj) : _value(obj), _thread(NULL) { \
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57 if (obj != NULL) { \
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58 assert(((Metadata*)obj)->is_valid(), "obj is valid"); \
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59 _thread = Thread::current(); \
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60 assert (_thread->is_in_stack((address)this), "not on stack?"); \
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61 _thread->metadata_handles()->push((Metadata*)obj); \
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62 } \
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63 } \
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64 inline name##Handle::name##Handle(Thread* thread, type* obj) : _value(obj), _thread(thread) { \
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65 if (obj != NULL) { \
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66 assert(((Metadata*)obj)->is_valid(), "obj is valid"); \
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67 assert(_thread == Thread::current(), "thread must be current"); \
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68 assert (_thread->is_in_stack((address)this), "not on stack?"); \
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69 _thread->metadata_handles()->push((Metadata*)obj); \
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70 } \
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71 } \
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72 inline name##Handle::name##Handle(const name##Handle &h) { \
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73 _value = h._value; \
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74 if (_value != NULL) { \
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75 assert(_value->is_valid(), "obj is valid"); \
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76 if (h._thread != NULL) { \
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77 assert(h._thread == Thread::current(), "thread must be current");\
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78 _thread = h._thread; \
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79 } else { \
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80 _thread = Thread::current(); \
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81 } \
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82 _thread->metadata_handles()->push((Metadata*)_value); \
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83 } else { \
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84 _thread = NULL; \
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85 } \
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86 } \
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87 inline name##Handle& name##Handle::operator=(const name##Handle &s) { \
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88 remove(); \
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89 _value = s._value; \
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90 if (_value != NULL) { \
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91 assert(_value->is_valid(), "obj is valid"); \
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92 if (s._thread != NULL) { \
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93 assert(s._thread == Thread::current(), "thread must be current");\
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94 _thread = s._thread; \
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95 } else { \
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96 _thread = Thread::current(); \
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97 } \
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98 _thread->metadata_handles()->push((Metadata*)_value); \
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99 } else { \
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100 _thread = NULL; \
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101 } \
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102 return *this; \
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103 } \
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104 inline void name##Handle::remove() { \
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105 if (_value != NULL) { \
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106 int i = _thread->metadata_handles()->find_from_end((Metadata*)_value); \
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107 assert(i!=-1, "not in metadata_handles list"); \
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108 _thread->metadata_handles()->remove_at(i); \
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109 } \
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110 } \
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111 inline name##Handle::~name##Handle () { remove(); } \
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112
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113 DEF_METADATA_HANDLE_FN(method, Method)
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114 DEF_METADATA_HANDLE_FN(constantPool, ConstantPool)
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115
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116 inline HandleMark::HandleMark() {
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117 initialize(Thread::current());
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118 }
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119
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120
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121 inline void HandleMark::push() {
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122 // This is intentionally a NOP. pop_and_restore will reset
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123 // values to the HandleMark further down the stack, typically
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124 // in JavaCalls::call_helper.
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125 debug_only(_area->_handle_mark_nesting++);
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126 }
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127
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128 inline void HandleMark::pop_and_restore() {
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129 HandleArea* area = _area; // help compilers with poor alias analysis
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130 // Delete later chunks
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131 if( _chunk->next() ) {
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132 // reset arena size before delete chunks. Otherwise, the total
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133 // arena size could exceed total chunk size
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134 assert(area->size_in_bytes() > size_in_bytes(), "Sanity check");
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135 area->set_size_in_bytes(size_in_bytes());
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136 _chunk->next_chop();
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137 } else {
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138 assert(area->size_in_bytes() == size_in_bytes(), "Sanity check");
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139 }
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140 // Roll back arena to saved top markers
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141 area->_chunk = _chunk;
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142 area->_hwm = _hwm;
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143 area->_max = _max;
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144 debug_only(area->_handle_mark_nesting--);
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145 }
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146
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147 #endif // SHARE_VM_RUNTIME_HANDLES_INLINE_HPP