reactor_config.hh

/*
 * This file is open source software, licensed to you under the terms
 * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership.  You may not use this file except in compliance with the License.
 *
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
/*
 * Copyright (C) 2019 ScyllaDB
 */
 
#pragma once
 
#ifndef SEASTAR_MODULE
#include <chrono>
#endif
#include <seastar/util/program-options.hh>
#include <seastar/util/memory_diagnostics.hh>
#include <seastar/util/modules.hh>
 
namespace seastar {
 
struct reactor_config {
    bool auto_handle_sigint_sigterm = true;
    unsigned max_networking_aio_io_control_blocks = 10000;
};
 
class reactor_backend_selector;
class network_stack_factory;
 
SEASTAR_MODULE_EXPORT
struct reactor_options : public program_options::option_group {
    program_options::selection_value<network_stack_factory> network_stack;
    program_options::value<> poll_mode;
    program_options::value<unsigned> idle_poll_time_us;
    program_options::value<bool> poll_aio;
    program_options::value<double> task_quota_ms;
    program_options::value<double> io_latency_goal_ms;
    program_options::value<double> io_flow_ratio_threshold;
    program_options::value<unsigned> max_task_backlog;
    program_options::value<unsigned> blocked_reactor_notify_ms;
    program_options::value<unsigned> blocked_reactor_reports_per_minute;
    program_options::value<bool> blocked_reactor_report_format_oneline;
    program_options::value<> relaxed_dma;
    program_options::value<bool> linux_aio_nowait;
    program_options::value<bool> unsafe_bypass_fsync;
    program_options::value<bool> kernel_page_cache;
    program_options::value<> overprovisioned;
    program_options::value<> abort_on_seastar_bad_alloc;
    program_options::value<bool> force_aio_syscalls;
    program_options::value<memory::alloc_failure_kind> dump_memory_diagnostics_on_alloc_failure_kind;
    program_options::selection_value<reactor_backend_selector> reactor_backend;
    program_options::value<bool> aio_fsync;
    program_options::value<unsigned> max_networking_io_control_blocks;
    program_options::value<> heapprof;
    program_options::value<> no_handle_interrupt;
 
    std::string _argv0;
    bool _auto_handle_sigint_sigterm = true;
 
public:
    reactor_options(program_options::option_group* parent_group);
};
 
}