mirror of
https://github.com/ntop/ntopng.git
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89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*
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*
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* (C) 2013-25 - ntop.org
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef _DB_CLASS_H_
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#define _DB_CLASS_H_
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#include "ntop_includes.h"
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typedef int db_result_row_callback(char *row[], char *fields[], int num_fields, void *user_data);
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class DB {
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private:
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struct timeval lastUpdateTime;
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float exportRate;
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u_int64_t exportedFlows, lastExportedFlows;
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/* Multiple threads can inc in case of view interfaces */
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std::atomic<u_int32_t> droppedFlows;
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std::atomic<u_int32_t> queueDroppedFlows;
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u_int64_t checkpointExportedFlows;
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u_int32_t checkpointDroppedFlows, checkpointQueueDroppedFlows;
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protected:
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bool running;
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NetworkInterface *iface;
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public:
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DB(NetworkInterface *_iface);
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virtual ~DB(){};
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inline void incNumExportedFlows(u_int64_t num = 1) { exportedFlows += num; };
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inline void incNumDroppedFlows(u_int32_t num = 1) { droppedFlows += num; };
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inline void incNumQueueDroppedFlows(u_int32_t num = 1) {
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queueDroppedFlows += num;
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};
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inline u_int64_t getNumExportedFlows() const { return (exportedFlows); }
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inline u_int32_t getNumDroppedFlows() const {
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return (queueDroppedFlows + droppedFlows);
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};
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void updateStats(const struct timeval *tv);
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void checkPointCounters(bool drops_only);
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/* Pure Virtual Functions of a DB flow exporter */
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virtual bool dumpFlow(time_t when, Flow *f, char *json) = 0;
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virtual bool startQueryLoop() { return (false); }
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virtual int exec_sql_query(const char *sql, bool doReconnect = true,
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bool ignoreErrors = false, bool doLock = true,
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db_result_row_callback *cb = NULL,
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void *cb_user_data = NULL) {
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return (-1);
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}
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virtual int exec_sql_query(lua_State *vm, char *sql, bool limitRows,
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bool wait_for_db_created) {
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return (-1);
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}
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inline void startDBLoop() {
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if (startQueryLoop()) running = true;
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};
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inline int isRunning() { return (running); };
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virtual bool isDbCreated() { return (true); };
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virtual void shutdown();
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virtual void flush(){};
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virtual void lua(lua_State *vm, bool since_last_checkpoint) const;
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virtual int select_database(char *dbname) { return (-1); }
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virtual void checkIdle(time_t when) { ; }
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};
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#endif /* _DB_CLASS_H_ */
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