mirror of https://github.com/Icinga/icinga2.git
139 lines
4.2 KiB
C++
139 lines
4.2 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
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#ifndef DBCONNECTION_H
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#define DBCONNECTION_H
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#include "db_ido/i2-db_ido.hpp"
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#include "db_ido/dbconnection-ti.hpp"
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#include "db_ido/dbobject.hpp"
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#include "db_ido/dbquery.hpp"
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#include "base/timer.hpp"
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#include "base/ringbuffer.hpp"
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#include <boost/thread/once.hpp>
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#include <mutex>
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namespace icinga
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{
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/**
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* A database connection.
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*
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* @ingroup db_ido
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*/
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class DbConnection : public ObjectImpl<DbConnection>
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{
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public:
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DECLARE_OBJECT(DbConnection);
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static void InitializeDbTimer();
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virtual const char * GetLatestSchemaVersion() const noexcept = 0;
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virtual const char * GetCompatSchemaVersion() const noexcept = 0;
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void SetConfigHash(const DbObject::Ptr& dbobj, const String& hash);
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void SetConfigHash(const DbType::Ptr& type, const DbReference& objid, const String& hash);
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String GetConfigHash(const DbObject::Ptr& dbobj) const;
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String GetConfigHash(const DbType::Ptr& type, const DbReference& objid) const;
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void SetObjectID(const DbObject::Ptr& dbobj, const DbReference& dbref);
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DbReference GetObjectID(const DbObject::Ptr& dbobj) const;
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void SetInsertID(const DbObject::Ptr& dbobj, const DbReference& dbref);
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void SetInsertID(const DbType::Ptr& type, const DbReference& objid, const DbReference& dbref);
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DbReference GetInsertID(const DbObject::Ptr& dbobj) const;
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DbReference GetInsertID(const DbType::Ptr& type, const DbReference& objid) const;
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void SetObjectActive(const DbObject::Ptr& dbobj, bool active);
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bool GetObjectActive(const DbObject::Ptr& dbobj) const;
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void ClearIDCache();
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void SetConfigUpdate(const DbObject::Ptr& dbobj, bool hasupdate);
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bool GetConfigUpdate(const DbObject::Ptr& dbobj) const;
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void SetStatusUpdate(const DbObject::Ptr& dbobj, bool hasupdate);
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bool GetStatusUpdate(const DbObject::Ptr& dbobj) const;
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int GetQueryCount(RingBuffer::SizeType span);
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virtual int GetPendingQueryCount() const = 0;
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void ValidateFailoverTimeout(const Lazy<double>& lvalue, const ValidationUtils& utils) final;
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void ValidateCategories(const Lazy<Array::Ptr>& lvalue, const ValidationUtils& utils) final;
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protected:
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void OnConfigLoaded() override;
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void Start(bool runtimeCreated) override;
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void Stop(bool runtimeRemoved) override;
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void Resume() override;
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void Pause() override;
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virtual void ExecuteQuery(const DbQuery& query) = 0;
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virtual void ExecuteMultipleQueries(const std::vector<DbQuery>&) = 0;
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virtual void ActivateObject(const DbObject::Ptr& dbobj) = 0;
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virtual void DeactivateObject(const DbObject::Ptr& dbobj) = 0;
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virtual void CleanUpExecuteQuery(const String& table, const String& time_column, double max_age);
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virtual void FillIDCache(const DbType::Ptr& type) = 0;
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virtual void NewTransaction() = 0;
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virtual void Disconnect() = 0;
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void UpdateObject(const ConfigObject::Ptr& object);
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void UpdateAllObjects();
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void PrepareDatabase();
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void IncreaseQueryCount();
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bool IsIDCacheValid() const;
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void SetIDCacheValid(bool valid);
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void EnableActiveChangedHandler();
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static void UpdateProgramStatus();
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static int GetSessionToken();
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void IncreasePendingQueries(int count);
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void DecreasePendingQueries(int count);
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WorkQueue m_QueryQueue{10000000, 1, LogNotice};
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private:
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bool m_IDCacheValid{false};
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std::map<std::pair<DbType::Ptr, DbReference>, String> m_ConfigHashes;
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std::map<DbObject::Ptr, DbReference> m_ObjectIDs;
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std::map<std::pair<DbType::Ptr, DbReference>, DbReference> m_InsertIDs;
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std::set<DbObject::Ptr> m_ActiveObjects;
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std::set<DbObject::Ptr> m_ConfigUpdates;
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std::set<DbObject::Ptr> m_StatusUpdates;
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Timer::Ptr m_CleanUpTimer;
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Timer::Ptr m_LogStatsTimer;
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double m_LogStatsTimeout;
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void CleanUpHandler();
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void LogStatsHandler();
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static Timer::Ptr m_ProgramStatusTimer;
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static boost::once_flag m_OnceFlag;
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static void InsertRuntimeVariable(const String& key, const Value& value);
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mutable std::mutex m_StatsMutex;
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RingBuffer m_QueryStats{15 * 60};
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bool m_ActiveChangedHandler{false};
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RingBuffer m_InputQueries{10};
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RingBuffer m_OutputQueries{10};
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Atomic<uint_fast64_t> m_PendingQueries{0};
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};
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struct database_error : virtual std::exception, virtual boost::exception { };
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struct errinfo_database_query_;
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typedef boost::error_info<struct errinfo_database_query_, std::string> errinfo_database_query;
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}
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#endif /* DBCONNECTION_H */
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