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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // See header file for description of DnsQueue class | 5 // See header file for description of DnsQueue class |
6 | 6 |
7 #include "chrome/renderer/net/predictor_queue.h" | 7 #include "components/predictor/renderer/predictor_queue.h" |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/metrics/stats_counters.h" | 10 #include "base/metrics/stats_counters.h" |
11 | 11 |
12 DnsQueue::DnsQueue(BufferSize size) | 12 DnsQueue::DnsQueue(BufferSize size) |
13 : buffer_(new char[size + 2]), | 13 : buffer_(new char[size + 2]), |
14 buffer_size_(size + 1), | 14 buffer_size_(size + 1), |
15 buffer_sentinel_(size + 1), | 15 buffer_sentinel_(size + 1), |
16 size_(0) { | 16 size_(0) { |
17 CHECK(0 < static_cast<BufferSize>(size + 3)); // Avoid overflow worries. | 17 CHECK(0 < static_cast<BufferSize>(size + 3)); // Avoid overflow worries. |
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143 } | 143 } |
144 | 144 |
145 bool DnsQueue::Validate() { | 145 bool DnsQueue::Validate() { |
146 return (readable_ >= 0) && | 146 return (readable_ >= 0) && |
147 readable_ < buffer_sentinel_ && | 147 readable_ < buffer_sentinel_ && |
148 writeable_ >= 0 && | 148 writeable_ >= 0 && |
149 writeable_ < buffer_sentinel_ && | 149 writeable_ < buffer_sentinel_ && |
150 '\0' == buffer_[buffer_sentinel_] && | 150 '\0' == buffer_[buffer_sentinel_] && |
151 ((0 == size_) == (readable_ == writeable_)); | 151 ((0 == size_) == (readable_ == writeable_)); |
152 } | 152 } |
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