2b0eac2cd0
The setting can be read and written simultaneously and is protected with a mutex. The public SERVER-class is now abstract.
90 lines
2.3 KiB
C++
90 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2022-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#pragma once
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/**
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* Internal header for the server type
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*/
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#include <maxbase/ccdefs.hh>
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#include <mutex>
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#include <maxbase/average.hh>
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#include <maxscale/server.hh>
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#include <maxscale/resultset.hh>
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#include <maxscale/routingworker.hh>
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std::unique_ptr<ResultSet> serverGetList();
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// Private server implementation
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class Server : public SERVER
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{
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public:
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Server()
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: m_response_time(maxbase::EMAverage {0.04, 0.35, 500})
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{
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}
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~Server() override
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{
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}
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int response_time_num_samples() const
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{
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return m_response_time.num_samples();
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}
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double response_time_average() const
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{
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return m_response_time.average();
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}
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void response_time_add(double ave, int num_samples);
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static Server* find_by_unique_name(const std::string& name);
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static void dprintServer(DCB*, const Server*);
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static void dprintPersistentDCBs(DCB*, const Server*);
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bool have_disk_space_limits() const override
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{
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std::lock_guard<std::mutex> guard(m_settings.lock);
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return !m_settings.disk_space_limits.empty();
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}
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MxsDiskSpaceThreshold get_disk_space_limits() const override
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{
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std::lock_guard<std::mutex> guard(m_settings.lock);
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return m_settings.disk_space_limits;
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}
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void set_disk_space_limits(const MxsDiskSpaceThreshold& new_limits) override
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{
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std::lock_guard<std::mutex> guard(m_settings.lock);
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m_settings.disk_space_limits = new_limits;
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}
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mutable std::mutex m_lock;
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private:
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struct Settings
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{
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mutable std::mutex lock; /**< Protects array-like settings from concurrent access */
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MxsDiskSpaceThreshold disk_space_limits; /**< Disk space thresholds */
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};
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maxbase::EMAverage m_response_time; /**< Response time calculations for this server */
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Settings m_settings; /**< Server settings */
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};
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void server_free(Server* server);
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