Line data Source code
1 : // Copyright 2011 Google Inc. All Rights Reserved.
2 : //
3 : // Redistribution and use in source and binary forms, with or without
4 : // modification, are permitted provided that the following conditions are
5 : // met:
6 : //
7 : // * Redistributions of source code must retain the above copyright
8 : // notice, this list of conditions and the following disclaimer.
9 : // * Redistributions in binary form must reproduce the above
10 : // copyright notice, this list of conditions and the following disclaimer
11 : // in the documentation and/or other materials provided with the
12 : // distribution.
13 : // * Neither the name of Google Inc. nor the names of its
14 : // contributors may be used to endorse or promote products derived from
15 : // this software without specific prior written permission.
16 : //
17 : // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 : // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 : // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 : // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 : // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 : // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 : // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 : // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 : // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 : // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 : // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 :
29 : #include <string.h>
30 :
31 : #include "snappy-sinksource.h"
32 :
33 : namespace snappy {
34 :
35 164 : Source::~Source() { }
36 :
37 88 : Sink::~Sink() { }
38 :
39 0 : char* Sink::GetAppendBuffer(size_t, char* scratch) {
40 0 : return scratch;
41 : }
42 :
43 164 : ByteArraySource::~ByteArraySource() { }
44 :
45 88 : size_t ByteArraySource::Available() const { return left_; }
46 :
47 5726 : const char* ByteArraySource::Peek(size_t* len) {
48 5726 : *len = left_;
49 5726 : return ptr_;
50 : }
51 :
52 5806 : void ByteArraySource::Skip(size_t n) {
53 5806 : left_ -= n;
54 5806 : ptr_ += n;
55 5806 : }
56 :
57 88 : UncheckedByteArraySink::~UncheckedByteArraySink() { }
58 :
59 5402 : void UncheckedByteArraySink::Append(const char* data, size_t n) {
60 : // Do no copying if the caller filled in the result of GetAppendBuffer()
61 5402 : if (data != dest_) {
62 88 : memcpy(dest_, data, n);
63 : }
64 5402 : dest_ += n;
65 5402 : }
66 :
67 5314 : char* UncheckedByteArraySink::GetAppendBuffer(size_t, char*) {
68 5314 : return dest_;
69 : }
70 :
71 : }
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