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1 /* | 1 /* |
2 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. |
3 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. | 3 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
11 * notice, this list of conditions and the following disclaimer in the | 11 * notice, this list of conditions and the following disclaimer in the |
12 * documentation and/or other materials provided with the distribution. | 12 * documentation and/or other materials provided with the distribution. |
13 * | 13 * |
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 */ | 25 */ |
26 | 26 |
27 #include "config.h" | 27 #include "config.h" |
28 #include "SharedBuffer.h" | 28 #include "SharedBuffer.h" |
29 | 29 |
30 #include "PlatformMemoryInstrumentation.h" | |
31 #include "PurgeableBuffer.h" | 30 #include "PurgeableBuffer.h" |
32 #include <wtf/MemoryInstrumentationVector.h> | |
33 #include <wtf/PassOwnPtr.h> | 31 #include <wtf/PassOwnPtr.h> |
34 #include <wtf/unicode/UTF8.h> | 32 #include <wtf/unicode/UTF8.h> |
35 #include <wtf/unicode/Unicode.h> | 33 #include <wtf/unicode/Unicode.h> |
36 | 34 |
37 using namespace std; | 35 using namespace std; |
38 | 36 |
39 namespace WebCore { | 37 namespace WebCore { |
40 | 38 |
41 static const unsigned segmentSize = 0x1000; | 39 static const unsigned segmentSize = 0x1000; |
42 static const unsigned segmentPositionMask = 0x0FFF; | 40 static const unsigned segmentPositionMask = 0x0FFF; |
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251 memcpy(destination, m_segments[i], bytesToCopy); | 249 memcpy(destination, m_segments[i], bytesToCopy); |
252 destination += bytesToCopy; | 250 destination += bytesToCopy; |
253 bytesLeft -= bytesToCopy; | 251 bytesLeft -= bytesToCopy; |
254 freeSegment(m_segments[i]); | 252 freeSegment(m_segments[i]); |
255 } | 253 } |
256 m_segments.clear(); | 254 m_segments.clear(); |
257 } | 255 } |
258 return m_buffer; | 256 return m_buffer; |
259 } | 257 } |
260 | 258 |
261 void SharedBuffer::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const | |
262 { | |
263 MemoryClassInfo info(memoryObjectInfo, this); | |
264 info.addMember(m_buffer, "buffer"); | |
265 for (unsigned i = 0; i < m_segments.size(); ++i) | |
266 info.addRawBuffer(m_segments[i], segmentSize, "RawBufferSegment", "segme
nt"); | |
267 info.addMember(m_segments, "segments"); | |
268 info.addMember(m_purgeableBuffer, "purgeableBuffer"); | |
269 } | |
270 | |
271 unsigned SharedBuffer::getSomeData(const char*& someData, unsigned position) con
st | 259 unsigned SharedBuffer::getSomeData(const char*& someData, unsigned position) con
st |
272 { | 260 { |
273 unsigned totalSize = size(); | 261 unsigned totalSize = size(); |
274 if (position >= totalSize) { | 262 if (position >= totalSize) { |
275 someData = 0; | 263 someData = 0; |
276 return 0; | 264 return 0; |
277 } | 265 } |
278 | 266 |
279 if (hasPlatformData() || m_purgeableBuffer) { | 267 if (hasPlatformData() || m_purgeableBuffer) { |
280 ASSERT_WITH_SECURITY_IMPLICATION(position < size()); | 268 ASSERT_WITH_SECURITY_IMPLICATION(position < size()); |
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347 const UChar* d = string.characters(); | 335 const UChar* d = string.characters(); |
348 WTF::Unicode::ConversionResult result = WTF::Unicode::convertUTF16ToUTF8(&d,
d + length, &p, p + buffer.size(), true); | 336 WTF::Unicode::ConversionResult result = WTF::Unicode::convertUTF16ToUTF8(&d,
d + length, &p, p + buffer.size(), true); |
349 if (result != WTF::Unicode::conversionOK) | 337 if (result != WTF::Unicode::conversionOK) |
350 return 0; | 338 return 0; |
351 | 339 |
352 buffer.shrink(p - buffer.data()); | 340 buffer.shrink(p - buffer.data()); |
353 return SharedBuffer::adoptVector(buffer); | 341 return SharedBuffer::adoptVector(buffer); |
354 } | 342 } |
355 | 343 |
356 } // namespace WebCore | 344 } // namespace WebCore |
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