Mercurial > hg > graal-compiler
comparison src/share/vm/services/memPtr.hpp @ 10986:1f4355cee9a2
8013651: NMT: reserve/release sequence id's in incorrect order due to race
Summary: Fixed NMT race condition for realloc, uncommit and release
Reviewed-by: coleenp, ccheung
author | zgu |
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date | Tue, 18 Jun 2013 08:44:08 -0400 |
parents | b80cc96882f7 |
children |
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10984:cd2118b62475 | 10986:1f4355cee9a2 |
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1 /* | 1 /* |
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 2012, 2013, 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. |
455 jint _seq; // sequence number | 455 jint _seq; // sequence number |
456 | 456 |
457 public: | 457 public: |
458 SeqMemPointerRecord(): _seq(0){ } | 458 SeqMemPointerRecord(): _seq(0){ } |
459 | 459 |
460 SeqMemPointerRecord(address addr, MEMFLAGS flags, size_t size) | 460 SeqMemPointerRecord(address addr, MEMFLAGS flags, size_t size, jint seq) |
461 : MemPointerRecord(addr, flags, size) { | 461 : MemPointerRecord(addr, flags, size), _seq(seq) { |
462 _seq = SequenceGenerator::next(); | |
463 } | 462 } |
464 | 463 |
465 SeqMemPointerRecord(const SeqMemPointerRecord& copy_from) | 464 SeqMemPointerRecord(const SeqMemPointerRecord& copy_from) |
466 : MemPointerRecord(copy_from) { | 465 : MemPointerRecord(copy_from) { |
467 _seq = copy_from.seq(); | 466 _seq = copy_from.seq(); |
486 | 485 |
487 public: | 486 public: |
488 SeqMemPointerRecordEx(): _seq(0) { } | 487 SeqMemPointerRecordEx(): _seq(0) { } |
489 | 488 |
490 SeqMemPointerRecordEx(address addr, MEMFLAGS flags, size_t size, | 489 SeqMemPointerRecordEx(address addr, MEMFLAGS flags, size_t size, |
491 address pc): MemPointerRecordEx(addr, flags, size, pc) { | 490 jint seq, address pc): |
492 _seq = SequenceGenerator::next(); | 491 MemPointerRecordEx(addr, flags, size, pc), _seq(seq) { |
493 } | 492 } |
494 | 493 |
495 SeqMemPointerRecordEx(const SeqMemPointerRecordEx& copy_from) | 494 SeqMemPointerRecordEx(const SeqMemPointerRecordEx& copy_from) |
496 : MemPointerRecordEx(copy_from) { | 495 : MemPointerRecordEx(copy_from) { |
497 _seq = copy_from.seq(); | 496 _seq = copy_from.seq(); |