other-licenses/snappy/src/snappy-sinksource.cc@97036ab72558
other-licenses/snappy/src/snappy-sinksource.cc
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
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.
29 #include <string.h>
31 #include "snappy-sinksource.h"
33 namespace snappy {
35 Source::~Source() { }
37 Sink::~Sink() { }
39 char* Sink::GetAppendBuffer(size_t length, char* scratch) {
40 return scratch;
41 }
43 ByteArraySource::~ByteArraySource() { }
45 size_t ByteArraySource::Available() const { return left_; }
47 const char* ByteArraySource::Peek(size_t* len) {
48 *len = left_;
49 return ptr_;
50 }
52 void ByteArraySource::Skip(size_t n) {
53 left_ -= n;
54 ptr_ += n;
55 }
57 UncheckedByteArraySink::~UncheckedByteArraySink() { }
59 void UncheckedByteArraySink::Append(const char* data, size_t n) {
60 // Do no copying if the caller filled in the result of GetAppendBuffer()
61 if (data != dest_) {
62 memcpy(dest_, data, n);
63 }
64 dest_ += n;
65 }
67 char* UncheckedByteArraySink::GetAppendBuffer(size_t len, char* scratch) {
68 return dest_;
69 }
72 }
