71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
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/// @file dpf/schedule_streams.hpp
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/// @brief Run a `schedule_session` over a `stream_array` peer transport.
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/// @details Builds a multi-round `stream_array_sink` from the schedule's slot
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/// widths so existing `plan_to_schedule` / compose plans can drive
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/// without a memory RoundSink. Prefer `drive_plan_on_streams` /
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/// `drive_both_on_streams` in `compose.hpp` for full plans (they call
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/// `drive_via_schedule`). Dealer pads still come from a
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/// `dealer_cursor` or a separate dealer `stream_array`.
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#ifndef LIBDPF_INCLUDE_DPF_SCHEDULE_STREAMS_HPP__
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#define LIBDPF_INCLUDE_DPF_SCHEDULE_STREAMS_HPP__
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#include <cstddef>
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#include <cstdint>
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#include <memory>
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#include <utility>
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#include <vector>
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#include "hedley/hedley.h"
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#include "dpf/net/stream_array.hpp"
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#include "dpf/protocol.hpp"
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namespace dpf
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{
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namespace protocol
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{
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/// @brief Slot widths for one stream index per schedule round.
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HEDLEY_WARN_UNUSED_RESULT
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inline std::vector<std::size_t> slot_bytes_of(
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const std::vector<schedule_round> & rounds)
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{
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std::vector<std::size_t> out;
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out.reserve(rounds.size());
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for (const auto & r : rounds)
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out.push_back(r.slot_bytes);
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return out;
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}
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/// @brief Owning peer sink + schedule session for stream-array transport.
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/// @details Requires `streams.size() >= rounds.size()`.
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struct owning_schedule_on_streams
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{
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std::unique_ptr<net::stream_array_sink> sink;
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schedule_session session;
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owning_schedule_on_streams(std::size_t count, net::stream_array & streams,
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std::vector<schedule_round> rounds)
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: sink(std::make_unique<net::stream_array_sink>(streams,
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slot_bytes_of(rounds), count)),
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session(count, *sink, std::move(rounds))
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{
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}
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void submit(std::size_t index) { session.submit(index); }
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void drive() { session.drive(); }
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};
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HEDLEY_WARN_UNUSED_RESULT
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inline owning_schedule_on_streams make_owning_schedule_on_streams(
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std::size_t count, net::stream_array & streams,
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std::vector<schedule_round> rounds)
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{
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return owning_schedule_on_streams(count, streams, std::move(rounds));
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}
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} // namespace protocol
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} // namespace dpf
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#endif
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