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The Data Generator is a testonly library for generating Data with correct sequence numbers. Bug: webrtc:12614 Change-Id: Ifc04dfd14d858d905312ffed13e8905c23d59923 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/214041 Commit-Queue: Victor Boivie <boivie@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33667}
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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* Copyright (c) 2021 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 NET_DCSCTP_TESTING_DATA_GENERATOR_H_
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#define NET_DCSCTP_TESTING_DATA_GENERATOR_H_
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#include <cstdint>
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#include <vector>
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#include "absl/strings/string_view.h"
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#include "absl/types/optional.h"
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#include "api/array_view.h"
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#include "net/dcsctp/common/internal_types.h"
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#include "net/dcsctp/packet/data.h"
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namespace dcsctp {
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struct DataGeneratorOptions {
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StreamID stream_id = StreamID(1);
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absl::optional<MID> message_id = absl::nullopt;
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PPID ppid = PPID(53);
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};
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// Generates Data with correct sequence numbers, and used only in unit tests.
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class DataGenerator {
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public:
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explicit DataGenerator(MID start_message_id = MID(0))
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: message_id_(start_message_id) {}
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// Generates ordered "data" with the provided `payload` and flags, which can
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// contain "B" for setting the "is_beginning" flag, and/or "E" for setting the
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// "is_end" flag.
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Data Ordered(std::vector<uint8_t> payload,
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absl::string_view flags = "",
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const DataGeneratorOptions opts = {});
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// Generates unordered "data" with the provided `payload` and flags, which can
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// contain "B" for setting the "is_beginning" flag, and/or "E" for setting the
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// "is_end" flag.
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Data Unordered(std::vector<uint8_t> payload,
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absl::string_view flags = "",
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const DataGeneratorOptions opts = {});
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// Resets the Message ID identifier - simulating a "stream reset".
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void ResetStream() { message_id_ = MID(0); }
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private:
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MID message_id_;
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FSN fsn_ = FSN(0);
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};
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} // namespace dcsctp
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#endif // NET_DCSCTP_TESTING_DATA_GENERATOR_H_
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