Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/jfr/recorder/storage/jfrBuffer.cpp
src/share/vm/jfr/recorder/storage/jfrBuffer.cpp
- changeset 9928
- d2c2cd90513e
- parent 9858
- b985cbb00e68
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| 9927:b273df69fbfe | 9928:d2c2cd90513e |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved. |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | 4 * |
| 5 * This code is free software; you can redistribute it and/or modify it | 5 * This code is free software; you can redistribute it and/or modify it |
| 6 * under the terms of the GNU General Public License version 2 only, as | 6 * under the terms of the GNU General Public License version 2 only, as |
| 7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
| 135 | 135 |
| 136 void JfrBuffer::clear_identity() { | 136 void JfrBuffer::clear_identity() { |
| 137 _identity = NULL; | 137 _identity = NULL; |
| 138 } | 138 } |
| 139 | 139 |
| 140 bool JfrBuffer::acquired_by(const void* id) const { | |
| 141 return identity() == id; | |
| 142 } | |
| 143 | |
| 144 bool JfrBuffer::acquired_by_self() const { | |
| 145 return acquired_by(Thread::current()); | |
| 146 } | |
| 147 | |
| 140 #ifdef ASSERT | 148 #ifdef ASSERT |
| 141 static bool validate_to(const JfrBuffer* const to, size_t size) { | 149 static bool validate_to(const JfrBuffer* const to, size_t size) { |
| 142 assert(to != NULL, "invariant"); | 150 assert(to != NULL, "invariant"); |
| 143 if (!JfrRecorder::is_shutting_down()) assert(to->acquired_by_self(), "invariant"); | 151 if (!JfrRecorder::is_shutting_down()) assert(to->acquired_by_self(), "invariant"); |
| 144 assert(to->free_size() >= size, "invariant"); | 152 assert(to->free_size() >= size, "invariant"); |
| 151 } | 159 } |
| 152 | 160 |
| 153 static bool validate_this(const JfrBuffer* const t, size_t size) { | 161 static bool validate_this(const JfrBuffer* const t, size_t size) { |
| 154 assert(t->top() + size <= t->pos(), "invariant"); | 162 assert(t->top() + size <= t->pos(), "invariant"); |
| 155 return true; | 163 return true; |
| 156 } | |
| 157 | |
| 158 bool JfrBuffer::acquired_by_self() const { | |
| 159 return identity() == Thread::current(); | |
| 160 } | 164 } |
| 161 #endif // ASSERT | 165 #endif // ASSERT |
| 162 | 166 |
| 163 void JfrBuffer::move(JfrBuffer* const to, size_t size) { | 167 void JfrBuffer::move(JfrBuffer* const to, size_t size) { |
| 164 assert(validate_to(to, size), "invariant"); | 168 assert(validate_to(to, size), "invariant"); |
| 182 set_pos(start()); | 186 set_pos(start()); |
| 183 to->release(); | 187 to->release(); |
| 184 set_concurrent_top(start()); | 188 set_concurrent_top(start()); |
| 185 } | 189 } |
| 186 | 190 |
| 187 // flags | |
| 188 enum FLAG { | 191 enum FLAG { |
| 189 RETIRED = 1, | 192 RETIRED = 1, |
| 190 TRANSIENT = 2, | 193 TRANSIENT = 2, |
| 191 LEASE = 4 | 194 LEASE = 4 |
| 192 }; | 195 }; |
