55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
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/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_TEST_TESTSUPPORT_PACKET_READER_H_
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#define WEBRTC_TEST_TESTSUPPORT_PACKET_READER_H_
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#include <cstddef>
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#include "webrtc/typedefs.h"
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namespace webrtc {
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namespace test {
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// Reads chunks of data to simulate network packets from a byte array.
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class PacketReader {
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public:
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PacketReader();
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virtual ~PacketReader();
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// Inizializes a new reading operation. Must be done before invoking the
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// NextPacket method.
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// * data_length_in_bytes is the length of the data byte array.
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// 0 length will result in no packets are read.
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// * packet_size_in_bytes is the number of bytes to read in each NextPacket
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// method call. Must be > 0
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virtual void InitializeReading(uint8_t* data, size_t data_length_in_bytes,
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size_t packet_size_in_bytes);
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// Moves the supplied pointer to the beginning of the next packet.
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// Returns:
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// * The size of the packet ready to read (lower than the packet size for
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// the last packet)
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// * 0 if there are no more packets to read
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// * -1 if InitializeReading has not been called (also prints to stderr).
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virtual int NextPacket(uint8_t** packet_pointer);
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private:
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uint8_t* data_;
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size_t data_length_;
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size_t packet_size_;
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size_t currentIndex_;
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bool initialized_;
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};
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} // namespace test
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} // namespace webrtc
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#endif // WEBRTC_TEST_TESTSUPPORT_PACKET_READER_H_
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