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| 1 /* | |
| 2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "WTF.h" | |
| 33 | |
| 34 #include "wtf/DefaultAllocator.h" | |
| 35 #include "wtf/FastMalloc.h" | |
| 36 | |
| 37 namespace WTF { | |
| 38 | |
| 39 extern void initializeThreading(); | |
| 40 | |
| 41 bool s_initialized; | |
| 42 bool s_shutdown; | |
| 43 bool Partitions::s_initialized; | |
| 44 PartitionAllocatorGeneric Partitions::m_bufferAllocator; | |
| 45 | |
| 46 void initialize(TimeFunction currentTimeFunction, TimeFunction monotonicallyIncr
easingTimeFunction) | |
| 47 { | |
| 48 // WTF, and Blink in general, cannot handle being re-initialized, even if sh
utdown first. | |
| 49 // Make that explicit here. | |
| 50 ASSERT(!s_initialized); | |
| 51 ASSERT(!s_shutdown); | |
| 52 s_initialized = true; | |
| 53 Partitions::initialize(); | |
| 54 setCurrentTimeFunction(currentTimeFunction); | |
| 55 setMonotonicallyIncreasingTimeFunction(monotonicallyIncreasingTimeFunction); | |
| 56 initializeThreading(); | |
| 57 } | |
| 58 | |
| 59 void shutdown() | |
| 60 { | |
| 61 ASSERT(s_initialized); | |
| 62 ASSERT(!s_shutdown); | |
| 63 s_shutdown = true; | |
| 64 Partitions::shutdown(); | |
| 65 } | |
| 66 | |
| 67 bool isShutdown() | |
| 68 { | |
| 69 return s_shutdown; | |
| 70 } | |
| 71 | |
| 72 void Partitions::initialize() | |
| 73 { | |
| 74 static int lock = 0; | |
| 75 // Guard against two threads hitting here in parallel. | |
| 76 spinLockLock(&lock); | |
| 77 if (!s_initialized) { | |
| 78 m_bufferAllocator.init(); | |
| 79 s_initialized = true; | |
| 80 } | |
| 81 spinLockUnlock(&lock); | |
| 82 } | |
| 83 | |
| 84 void Partitions::shutdown() | |
| 85 { | |
| 86 fastMallocShutdown(); | |
| 87 m_bufferAllocator.shutdown(); | |
| 88 } | |
| 89 | |
| 90 } // namespace WTF | |
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Chromium Code Reviews
Issue 1041103002:
PartitionAlloc: Centralize Partition allocators into one place (Part 1) (Closed)
Base URL: svn://svn.chromium.org/blink/trunk