[8ebc79b] | 1 | // Copyright 2011 Google Inc. All Rights Reserved. |
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| 2 | // |
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| 3 | // Redistribution and use in source and binary forms, with or without |
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| 4 | // modification, are permitted provided that the following conditions are |
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| 5 | // met: |
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| 6 | // |
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| 7 | // * Redistributions of source code must retain the above copyright |
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| 8 | // notice, this list of conditions and the following disclaimer. |
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| 9 | // * Redistributions in binary form must reproduce the above |
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| 10 | // copyright notice, this list of conditions and the following disclaimer |
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| 11 | // in the documentation and/or other materials provided with the |
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| 12 | // distribution. |
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| 13 | // * Neither the name of Google Inc. nor the names of its |
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| 14 | // contributors may be used to endorse or promote products derived from |
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| 15 | // this software without specific prior written permission. |
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| 16 | // |
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| 17 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| 18 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| 19 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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| 20 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| 21 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 22 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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| 23 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 24 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 25 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 27 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | |
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| 29 | #include <string.h> |
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| 30 | |
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| 31 | #include "snappy-sinksource.h" |
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| 32 | |
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| 33 | namespace snappy { |
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| 34 | |
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| 35 | Source::~Source() { } |
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| 36 | |
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| 37 | Sink::~Sink() { } |
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| 38 | |
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| 39 | char* Sink::GetAppendBuffer(size_t length, char* scratch) { |
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| 40 | return scratch; |
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| 41 | } |
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| 42 | |
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| 43 | ByteArraySource::~ByteArraySource() { } |
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| 44 | |
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| 45 | size_t ByteArraySource::Available() const { return left_; } |
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| 46 | |
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| 47 | const char* ByteArraySource::Peek(size_t* len) { |
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| 48 | *len = left_; |
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| 49 | return ptr_; |
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| 50 | } |
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| 51 | |
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| 52 | void ByteArraySource::Skip(size_t n) { |
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| 53 | left_ -= n; |
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| 54 | ptr_ += n; |
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| 55 | } |
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| 56 | |
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| 57 | UncheckedByteArraySink::~UncheckedByteArraySink() { } |
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| 58 | |
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| 59 | void UncheckedByteArraySink::Append(const char* data, size_t n) { |
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| 60 | // Do no copying if the caller filled in the result of GetAppendBuffer() |
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| 61 | if (data != dest_) { |
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| 62 | memcpy(dest_, data, n); |
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| 63 | } |
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| 64 | dest_ += n; |
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| 65 | } |
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| 66 | |
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| 67 | char* UncheckedByteArraySink::GetAppendBuffer(size_t len, char* scratch) { |
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| 68 | return dest_; |
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| 69 | } |
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| 70 | |
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| 71 | } |
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