2db59a6584
This avoids copying the payload at all. Future CL will change the transport. In performance tests, memcpy was visible in the performance profiles prior to this change. Bug: webrtc:12943 Change-Id: I507a1a316165db748e73cf0d58c1be62cc76a2d2 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/236346 Commit-Queue: Victor Boivie <boivie@webrtc.org> Reviewed-by: Florent Castelli <orphis@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35428}
67 lines
2.1 KiB
C++
67 lines
2.1 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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#include "net/dcsctp/testing/data_generator.h"
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#include <cstdint>
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#include <string>
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#include <utility>
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#include <vector>
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#include "absl/strings/string_view.h"
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#include "net/dcsctp/packet/data.h"
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#include "net/dcsctp/public/types.h"
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namespace dcsctp {
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constexpr PPID kPpid = PPID(53);
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Data DataGenerator::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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Data::IsBeginning is_beginning(flags.find('B') != std::string::npos);
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Data::IsEnd is_end(flags.find('E') != std::string::npos);
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if (is_beginning) {
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fsn_ = FSN(0);
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} else {
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fsn_ = FSN(*fsn_ + 1);
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}
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MID message_id = opts.message_id.value_or(message_id_);
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Data ret = Data(opts.stream_id, SSN(static_cast<uint16_t>(*message_id)),
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message_id, fsn_, opts.ppid, rtc::CopyOnWriteBuffer(payload),
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is_beginning, is_end, IsUnordered(false));
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if (is_end) {
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message_id_ = MID(*message_id + 1);
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}
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return ret;
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}
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Data DataGenerator::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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Data::IsBeginning is_beginning(flags.find('B') != std::string::npos);
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Data::IsEnd is_end(flags.find('E') != std::string::npos);
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if (is_beginning) {
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fsn_ = FSN(0);
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} else {
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fsn_ = FSN(*fsn_ + 1);
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}
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MID message_id = opts.message_id.value_or(message_id_);
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Data ret = Data(opts.stream_id, SSN(0), message_id, fsn_, kPpid,
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rtc::CopyOnWriteBuffer(payload), is_beginning, is_end,
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IsUnordered(true));
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if (is_end) {
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message_id_ = MID(*message_id + 1);
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}
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return ret;
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}
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} // namespace dcsctp
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