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/*
* Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "net/dcsctp/testing/data_generator.h"
#include <cstdint>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "net/dcsctp/packet/data.h"
#include "net/dcsctp/public/types.h"
namespace dcsctp {
constexpr PPID kPpid = PPID(53);
Data DataGenerator::Ordered(std::vector<uint8_t> payload,
absl::string_view flags,
const DataGeneratorOptions opts) {
Data::IsBeginning is_beginning(flags.find('B') != std::string::npos);
Data::IsEnd is_end(flags.find('E') != std::string::npos);
if (is_beginning) {
fsn_ = FSN(0);
} else {
fsn_ = FSN(*fsn_ + 1);
}
MID message_id = opts.message_id.value_or(message_id_);
Data ret = Data(opts.stream_id, SSN(static_cast<uint16_t>(*message_id)),
message_id, fsn_, opts.ppid, std::move(payload), is_beginning,
is_end, IsUnordered(false));
if (is_end) {
message_id_ = MID(*message_id + 1);
}
return ret;
}
Data DataGenerator::Unordered(std::vector<uint8_t> payload,
absl::string_view flags,
const DataGeneratorOptions opts) {
Data::IsBeginning is_beginning(flags.find('B') != std::string::npos);
Data::IsEnd is_end(flags.find('E') != std::string::npos);
if (is_beginning) {
fsn_ = FSN(0);
} else {
fsn_ = FSN(*fsn_ + 1);
}
MID message_id = opts.message_id.value_or(message_id_);
Data ret = Data(opts.stream_id, SSN(0), message_id, fsn_, kPpid,
std::move(payload), is_beginning, is_end, IsUnordered(true));
if (is_end) {
message_id_ = MID(*message_id + 1);
}
return ret;
}
} // namespace dcsctp
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