Crate udp_prague 

UDP Prague (L4S) example project ported to Rust.

This crate aims to be a near-literal port of the reference C++ code, keeping file/module structure and function naming close enough that it is easy to compare the two implementations line-by-line.

The hot path is the congestion controller (PragueCC) and related packet parsing. Those modules avoid heap allocations and preserve the original wrap-around arithmetic semantics.

The reusable protocol/runtime surface is always available. The higher-level session wrappers are behind the session feature. The demo application’s CLI/reporting adapter (app_stuff) is behind the demo-app feature.

Module layout:

• udp_prague::core: runner loops, config, reporting, and errors.
• udp_prague::congestion: Prague CC algorithm/types.
• udp_prague::protocol: packet formats and wire helpers.
• udp_prague::net: UDP socket backend.
• udp_prague::core session wrappers: available with the session feature.
• udp_prague::demo: reference-style CLI/reporting layer (demo-app only).

Re-exports

pub use crate::congestion::prague_cc;

pub use crate::core::error;

pub use crate::core::runner;

pub use crate::core::runtime;

pub use crate::demo::app as app_stuff;

pub use crate::demo::json_writer;

pub use crate::net::udpsocket;

pub use crate::protocol::pkt_format;

pub use crate::congestion::cca_tp;

pub use crate::congestion::count_tp;

pub use crate::congestion::cs_tp;

pub use crate::congestion::ecn_tp;

pub use crate::congestion::fps_tp;

pub use crate::congestion::prob_tp;

pub use crate::congestion::rate_tp;

pub use crate::congestion::size_tp;

pub use crate::congestion::time_tp;

pub use crate::congestion::window_tp;

pub use crate::congestion::PragueBitrateAction;

pub use crate::congestion::PragueCC;

pub use crate::congestion::PragueCongestionSignal;

pub use crate::congestion::PragueRateAdvice;

pub use crate::congestion::PragueState;

pub use crate::congestion::PragueVideoRateAdvice;

pub use crate::congestion::PRAGUE_INITMTU;

pub use crate::congestion::PRAGUE_MAXRATE;

pub use crate::congestion::PRAGUE_MINRATE;

pub use crate::core::AppError;

pub use crate::core::SessionError;

pub use crate::core::PragueAckCounters;

pub use crate::core::PragueAckFeedback;

pub use crate::core::PragueAckReport;

pub use crate::core::PragueBulkTransferReport;

pub use crate::core::PragueFrameWindowMetrics;

pub use crate::core::PraguePacketWindowMetrics;

pub use crate::core::PragueQueuedVideoFrame;

pub use crate::core::PragueReceivedBulkPacket;

pub use crate::core::PragueReceivedBulkPacketView;

pub use crate::core::PragueReceivedFramePacket;

pub use crate::core::PragueReceivedFramePacketView;

pub use crate::core::PragueReceivedPacket;

pub use crate::core::PragueReceivedPacketAndAck;

pub use crate::core::PragueReceivedPacketAndAckView;

pub use crate::core::PragueReceivedPacketView;

pub use crate::core::PragueReceivedSegment;

pub use crate::core::PragueReceivedVideoFrame;

pub use crate::core::PragueReceiverReassemblyLimits;

pub use crate::core::PragueReceiverSession;

pub use crate::core::PragueRecvAckEvent;

pub use crate::core::PragueRecvDataEvent;

pub use crate::core::PragueRecvRfc8888AckEvent;

pub use crate::core::PragueSegmentReceiverSession;

pub use crate::core::PragueSegmentSendReport;

pub use crate::core::PragueSegmentSenderSession;

pub use crate::core::PragueSendAckEvent;

pub use crate::core::PragueSendDataEvent;

pub use crate::core::PragueSendFrameDataEvent;

pub use crate::core::PragueSendReport;

pub use crate::core::PragueSendRfc8888AckEvent;

pub use crate::core::PragueSenderSession;

pub use crate::core::PragueSessionConfig;

pub use crate::core::PragueVideoAckFeedback;

pub use crate::core::PragueVideoReceiverSession;

pub use crate::core::PragueVideoSendReport;

pub use crate::core::PragueVideoSenderSession;

pub use crate::core::PragueVideoSessionConfig;

pub use crate::core::Reporter;

pub use crate::core::RunnerConfig;

pub use crate::core::FRAME_DURATION;

pub use crate::core::FRAME_PER_SECOND;

pub use crate::core::PORT;

pub use crate::core::RFC8888_ACKPERIOD;

pub use crate::core::RunnerError;

pub use crate::core::UdpSocketError;

pub use crate::net::Endpoint;

pub use crate::net::SocketPlatformSupport;

pub use crate::net::UDPSocket;

Modules

congestion

Prague congestion-control types and logic.

core

Reusable library runtime surface.

demo

Demo application compatibility layer.

facade

A “drop-in” compatibility facade that re-exports the primary types. Drop-in facade re-exporting the public API.

net

Network/socket backend used by the runtime.

protocol

UDP Prague packet formats and wire helpers.