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48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_BASE_TEST_DATA_STREAM_H_
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#define NET_BASE_TEST_DATA_STREAM_H_
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#include <string.h> // for memcpy().
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#include <algorithm>
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#include "net/base/net_export.h"
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// This is a class for generating an infinite stream of data which can be
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// verified independently to be the correct stream of data.
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namespace net {
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class NET_EXPORT TestDataStream {
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public:
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TestDataStream();
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// Fill |buffer| with |length| bytes of data from the stream.
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void GetBytes(char* buffer, int length);
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// Verify that |buffer| contains the expected next |length| bytes from the
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// stream. Returns true if correct, false otherwise.
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bool VerifyBytes(const char *buffer, int length);
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// Resets all the data.
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void Reset();
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private:
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// If there is no data spilled over from the previous index, advance the
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// index and fill the buffer.
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void AdvanceIndex();
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// Consume data from the spill buffer.
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void Consume(int bytes);
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int index_;
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int bytes_remaining_;
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char buffer_[16];
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char* buffer_ptr_;
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};
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} // namespace net
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#endif // NET_BASE_TEST_DATA_STREAM_H_
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