proxysql/include/SQLite3_Server.h

#ifndef CLASS_PROXYSQL_SQLITE3_SERVER_H
#define CLASS_PROXYSQL_SQLITE3_SERVER_H

#include "proxy_defines.h"
#include "proxysql.h"
#include "cpp.h"
#include <vector>

/*
typedef struct { uint32_t hash; uint32_t key; } t_symstruct;


class Scheduler_Row {
	public:
	unsigned int id;
	bool is_active;
	unsigned int interval_ms;
	unsigned long long last;
	unsigned long long next;
	char *filename;
	char **args;
	char *comment;
	Scheduler_Row(unsigned int _id, bool _is_active, unsigned int _in, char *_f, char *a1, char *a2, char *a3, char *a4, char *a5, char *_comment);
	~Scheduler_Row();
};

class ProxySQL_External_Scheduler {
	private:
	unsigned long long next_run;
	public:
	unsigned int last_version;
	unsigned int version;
#ifdef PA_PTHREAD_MUTEX
	pthread_rwlock_t rwlock;
#else
	rwlock_t rwlock;
#endif
	std::vector<Scheduler_Row *> Scheduler_Rows;
	ProxySQL_External_Scheduler();
	~ProxySQL_External_Scheduler();
	unsigned long long run_once();
	void update_table(SQLite3_result *result);
};
*/

class SQLite3_Session {
	public:
	SQLite3DB *sessdb;
	SQLite3_Session();
	~SQLite3_Session();
};

class SQLite3_Server {
	private:
	volatile int main_shutdown;
	SQLite3DB *sessdb;
/*
	std::vector<table_def_t *> *tables_defs_admin;
	std::vector<table_def_t *> *tables_defs_stats;
	std::vector<table_def_t *> *tables_defs_config;

	pthread_t admin_thr;
*/
	int main_poll_nfds;
	struct pollfd *main_poll_fds;
	int *main_callback_func;

	pthread_rwlock_t rwlock;

	



	struct {
		char *admin_credentials;
		char *stats_credentials;
		int refresh_interval;
		char *mysql_ifaces;
		char *telnet_admin_ifaces;
		char *telnet_stats_ifaces;
		bool read_only;
		bool hash_passwords;
		char * admin_version;
#ifdef DEBUG
		bool debug;
#endif // DEBUG
	} variables;
/*

	ProxySQL_External_Scheduler *scheduler;

	void dump_mysql_collations();
	void insert_into_tables_defs(std::vector<table_def_t *> *, const char *table_name, const char *table_def);
	void drop_tables_defs(std::vector<table_def_t *> *tables_defs);
	void check_and_build_standard_tables(SQLite3DB *db, std::vector<table_def_t *> *tables_defs);

#ifdef DEBUG
	void flush_debug_levels_runtime_to_database(SQLite3DB *db, bool replace);
	int flush_debug_levels_database_to_runtime(SQLite3DB *db);
#endif // DEBUG

	void __insert_or_ignore_maintable_select_disktable();
	void __insert_or_replace_maintable_select_disktable();
	void __delete_disktable();
	void __insert_or_replace_disktable_select_maintable();
	void __attach_db(SQLite3DB *db1, SQLite3DB *db2, char *alias);

	void __add_active_users(enum cred_username_type usertype, char *user=NULL);
	void __delete_inactive_users(enum cred_username_type usertype);
	void add_admin_users();
	void __refresh_users();

	void flush_mysql_variables___runtime_to_database(SQLite3DB *db, bool replace, bool del, bool onlyifempty, bool runtime=false);
	void flush_mysql_variables___database_to_runtime(SQLite3DB *db, bool replace);

*/
/*
	void flush_admin_variables___database_to_runtime(SQLite3DB *db, bool replace);
	void flush_admin_variables___runtime_to_database(SQLite3DB *db, bool replace, bool del, bool onlyifempty, bool runtime=false);
	void disk_upgrade_mysql_query_rules();
	void disk_upgrade_mysql_servers();
	void disk_upgrade_mysql_users();
	void disk_upgrade_scheduler();

#ifdef DEBUG
	void add_credentials(char *type, char *credentials, int hostgroup_id);
	void delete_credentials(char *type, char *credentials);
#else
	void add_credentials(char *credentials, int hostgroup_id);
	void delete_credentials(char *credentials);
#endif // DEBUG
*/
	public:
	SQLite3_Server();
	~SQLite3_Server();
/*
	struct {
		void *opt;
		void **re;
	} match_regexes;
	void public_add_active_users(enum cred_username_type usertype, char *user=NULL) {
		__add_active_users(usertype, user);
	}
	ProxySQL_Admin();
	~ProxySQL_Admin();
	SQLite3DB *admindb;	// in memory
	SQLite3DB *statsdb;	// in memory
	SQLite3DB *configdb; // on disk
	SQLite3DB *monitordb;	// in memory
	int pipefd[2];
*/
	char **get_variables_list();
	char *get_variable(char *name);
	bool set_variable(char *name, char *value);
	bool has_variable(const char *name);
	void print_version();
	bool init();
	void wrlock();
	void wrunlock();
/*
	bool get_read_only() { return variables.admin_read_only; }
	bool set_read_only(bool ro) { variables.admin_read_only=ro; return variables.admin_read_only; }
	void init_users();
	void init_mysql_servers();
	void init_mysql_query_rules();
	void save_mysql_users_runtime_to_database(bool _runtime);
	void save_mysql_servers_runtime_to_database(bool);
	void admin_shutdown();
	bool is_command(std::string);
*/
	void send_MySQL_OK(MySQL_Protocol *myprot, char *msg, int rows=0);
	void send_MySQL_ERR(MySQL_Protocol *myprot, char *msg);
/*
#ifdef DEBUG
	int load_debug_to_runtime() { return flush_debug_levels_database_to_runtime(admindb); }
	void save_debug_from_runtime() { return flush_debug_levels_runtime_to_database(admindb, true); }
#endif // DEBUG
	void flush_mysql_users__from_memory_to_disk();
	void flush_mysql_users__from_disk_to_memory();
	void flush_mysql_servers__from_memory_to_disk();
	void flush_mysql_servers__from_disk_to_memory();
	void flush_mysql_query_rules__from_memory_to_disk();	
	void flush_mysql_query_rules__from_disk_to_memory();	
	void load_mysql_servers_to_runtime();
	void save_mysql_servers_from_runtime();
	char * load_mysql_query_rules_to_runtime();
	void save_mysql_query_rules_from_runtime(bool);

	void load_scheduler_to_runtime();
	void save_scheduler_runtime_to_database(bool);
	void flush_scheduler__from_memory_to_disk();
	void flush_scheduler__from_disk_to_memory();

	void load_admin_variables_to_runtime() { flush_admin_variables___database_to_runtime(admindb, true); }
	void save_admin_variables_from_runtime() { flush_admin_variables___runtime_to_database(admindb, true, true, false); }

	void load_mysql_variables_to_runtime() { flush_mysql_variables___database_to_runtime(admindb, true); }
	void save_mysql_variables_from_runtime() { flush_mysql_variables___runtime_to_database(admindb, true, true, false); }

	void stats___mysql_query_rules();
	void stats___mysql_query_digests(bool reset);
	//void stats___mysql_query_digests_reset();
	void stats___mysql_commands_counters();
	void stats___mysql_processlist();
	void stats___mysql_connection_pool(bool _reset);
	void stats___mysql_global();
	void stats___mysql_users();

	int Read_Global_Variables_from_configfile(const char *prefix);
	int Read_MySQL_Users_from_configfile();
	int Read_MySQL_Query_Rules_from_configfile();
	int Read_MySQL_Servers_from_configfile();
	int Read_Scheduler_from_configfile();

	void flush_error_log();
	void GenericRefreshStatistics(const char *query_no_space, unsigned int query_no_space_length, bool admin);
	SQLite3_result * generate_show_table_status(const char *, char **err);
	SQLite3_result * generate_show_fields_from(const char *tablename, char **err);

	void mysql_servers_wrlock();
	void mysql_servers_wrunlock();

	// wrapper to call a private function
	unsigned long long scheduler_run_once() { return scheduler->run_once(); }

	void flush_configdb(); // 923
*/
};
#endif // CLASS_PROXYSQL_SQLITE3_SERVER_H