include/boost/corosio/native/detail/reactor/reactor_op_base.hpp
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boost::corosio::detail::reactor_op_base::complete(int, unsigned long)
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boost::corosio::detail::reactor_op_base::perform_io()
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| Line | TLA | Hits | Source Code |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2026 Steve Gerbino | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/cppalliance/corosio | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_COROSIO_NATIVE_DETAIL_REACTOR_REACTOR_OP_BASE_HPP | ||
| 11 | #define BOOST_COROSIO_NATIVE_DETAIL_REACTOR_REACTOR_OP_BASE_HPP | ||
| 12 | |||
| 13 | #include <boost/corosio/detail/scheduler_op.hpp> | ||
| 14 | |||
| 15 | #include <atomic> | ||
| 16 | #include <cstddef> | ||
| 17 | #include <memory> | ||
| 18 | |||
| 19 | namespace boost::corosio::detail { | ||
| 20 | |||
| 21 | /** Non-template base for reactor operations. | ||
| 22 | |||
| 23 | Holds per-operation state accessed by reactor_descriptor_state | ||
| 24 | and reactor_socket without requiring knowledge of the concrete | ||
| 25 | backend socket/acceptor types. This avoids duplicate template | ||
| 26 | instantiations for the descriptor_state and scheduler hot paths. | ||
| 27 | |||
| 28 | @see reactor_op | ||
| 29 | */ | ||
| 30 | struct reactor_op_base : scheduler_op | ||
| 31 | { | ||
| 32 | /// Errno from the last I/O attempt. | ||
| 33 | int errn = 0; | ||
| 34 | |||
| 35 | /// Bytes transferred on success. | ||
| 36 | std::size_t bytes_transferred = 0; | ||
| 37 | |||
| 38 | /// True when cancellation has been requested. | ||
| 39 | std::atomic<bool> cancelled{false}; | ||
| 40 | |||
| 41 | /// Prevents use-after-free when socket is closed with pending ops. | ||
| 42 | std::shared_ptr<void> impl_ptr; | ||
| 43 | |||
| 44 | /// Record the result of an I/O attempt. | ||
| 45 | 116581x | void complete(int err, std::size_t bytes) noexcept | |
| 46 | { | ||
| 47 | 116581x | errn = err; | |
| 48 | 116581x | bytes_transferred = bytes; | |
| 49 | 116581x | } | |
| 50 | |||
| 51 | /// Perform the I/O syscall (overridden by concrete op types). | ||
| 52 | ✗ | virtual void perform_io() noexcept {} | |
| 53 | |||
| 54 | /// Mark as cancelled (visible to the I/O completion path). | ||
| 55 | 204056x | void request_cancel() noexcept | |
| 56 | { | ||
| 57 | 204056x | cancelled.store(true, std::memory_order_release); | |
| 58 | 204056x | } | |
| 59 | |||
| 60 | /// Destroy without invoking. | ||
| 61 | ✗ | void destroy() override | |
| 62 | { | ||
| 63 | ✗ | impl_ptr.reset(); | |
| 64 | ✗ | } | |
| 65 | }; | ||
| 66 | |||
| 67 | } // namespace boost::corosio::detail | ||
| 68 | |||
| 69 | #endif // BOOST_COROSIO_NATIVE_DETAIL_REACTOR_REACTOR_OP_BASE_HPP | ||
| 70 |