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proxysql/include/proxysql_structs.h

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#define PKT_PARSED 0
#define PKT_ERROR 1
#ifndef PROXYSQL_ENUMS
#define PROXYSQL_ENUMS
// list of possible debugging modules
enum debug_module {
PROXY_DEBUG_GENERIC,
PROXY_DEBUG_NET,
PROXY_DEBUG_PKT_ARRAY,
PROXY_DEBUG_POLL,
PROXY_DEBUG_MYSQL_COM,
PROXY_DEBUG_MYSQL_SERVER,
PROXY_DEBUG_MYSQL_CONNECTION,
PROXY_DEBUG_MYSQL_CONNPOOL,
PROXY_DEBUG_MYSQL_RW_SPLIT,
PROXY_DEBUG_MYSQL_AUTH,
PROXY_DEBUG_MYSQL_PROTOCOL,
PROXY_DEBUG_MYSQL_QUERY_PROCESSOR,
PROXY_DEBUG_MEMORY,
PROXY_DEBUG_ADMIN,
PROXY_DEBUG_SQLITE,
PROXY_DEBUG_IPC,
PROXY_DEBUG_QUERY_CACHE,
PROXY_DEBUG_QUERY_STATISTICS,
PROXY_DEBUG_UNKNOWN // this module doesn't exist. It is used only to define the last possible module
};
enum MySQL_response_type {
OK_Packet,
ERR_Packet,
EOF_Packet,
UNKNOWN_Packet,
};
enum MySQL_DS_type {
MYDS_LISTENER,
MYDS_BACKEND,
MYDS_BACKEND_NOT_CONNECTED,
MYDS_BACKEND_PAUSE_CONNECT,
MYDS_BACKEND_FAILED_CONNECT,
MYDS_FRONTEND,
};
enum session_status {
CONNECTING_CLIENT,
CONNECTING_SERVER,
WAITING_CLIENT_DATA,
WAITING_SERVER_DATA,
CHANGING_SCHEMA,
CHANGING_CHARSET,
CHANGING_USER_CLIENT,
CHANGING_USER_SERVER,
FAST_FORWARD,
NONE
};
enum mysql_data_stream_status {
STATE_NOT_INITIALIZED,
STATE_NOT_CONNECTED,
STATE_SERVER_HANDSHAKE,
STATE_CLIENT_HANDSHAKE,
STATE_CLIENT_AUTH_OK,
STATE_SSL_INIT,
STATE_SLEEP,
STATE_CLIENT_COM_QUERY,
STATE_READY,
STATE_QUERY_SENT_DS,
STATE_QUERY_SENT_NET,
STATE_PING_SENT_NET,
STATE_COLUMN_COUNT,
STATE_COLUMN_DEFINITION,
STATE_ROW,
STATE_EOF1,
STATE_EOF2,
STATE_OK,
STATE_ERR,
STATE_READING_COM_STMT_PREPARE_RESPONSE,
STATE_END
/*
STATE_ONE_STRING,
STATE_OK,
STATE_FIELD_LIST,
STATE_SLEEP,
STATE_FIELD,
STATE_FIELD_BIN,
STATE_TXT_RS,
STATE_BIN_RS,
STATE_END,
STATE_ERROR,
STATE_TXT_ROW,
STATE_BIN_ROW,
STATE_NOT_CONNECTED,
STATE_CLIENT_HANDSHAKE,
STATE_COM_PONG,
STATE_STMT_META,
STATE_STMT_PARAM
*/
};
/* this expands enum enum_server_command */
enum enum_mysql_command {
_MYSQL_COM_SLEEP = 0,
_MYSQL_COM_QUIT,
_MYSQL_COM_INIT_DB,
_MYSQL_COM_QUERY,
_MYSQL_COM_FIELD_LIST,
_MYSQL_COM_CREATE_DB,
_MYSQL_COM_DROP_DB,
_MYSQL_COM_REFRESH,
_MYSQL_COM_SHUTDOWN,
_MYSQL_COM_STATISTICS,
_MYSQL_COM_PROCESS_INFO,
_MYSQL_COM_CONNECT,
_MYSQL_COM_PROCESS_KILL,
_MYSQL_COM_DEBUG,
_MYSQL_COM_PING,
_MYSQL_COM_TIME = 15,
_MYSQL_COM_DELAYED_INSERT,
_MYSQL_COM_CHANGE_USER,
_MYSQL_COM_BINLOG_DUMP,
_MYSQL_COM_TABLE_DUMP,
_MYSQL_COM_CONNECT_OUT = 20,
_MYSQL_COM_REGISTER_SLAVE,
_MYSQL_COM_STMT_PREPARE = 22,
_MYSQL_COM_STMT_EXECUTE = 23,
_MYSQL_COM_STMT_SEND_LONG_DATA = 24,
_MYSQL_COM_STMT_CLOSE = 25,
_MYSQL_COM_STMT_RESET = 26,
_MYSQL_COM_SET_OPTION = 27,
_MYSQL_COM_STMT_FETCH = 28,
_MYSQL_COM_DAEMON,
_MYSQL_COM_RESET_CONNECTION = 31,
_MYSQL_COM_END
};
enum proxysql_server_status {
PROXYSQL_SERVER_STATUS_OFFLINE_HARD = 0,
PROXYSQL_SERVER_STATUS_OFFLINE_SOFT = 1,
PROXYSQL_SERVER_STATUS_SHUNNED = 2,
PROXYSQL_SERVER_STATUS_ONLINE = 3,
};
#endif /* PROXYSQL_ENUMS */
#ifndef PROXYSQL_TYPEDEFS
#define PROXYSQL_TYPEDEFS
#ifdef DEBUG
typedef struct _debug_level debug_level;
#endif /* DEBUG */
typedef struct _global_variables_t global_variables;
typedef struct _global_variable_entry_t global_variable_entry_t;
//typedef struct _mysql_backend_t mysql_backend_t;
typedef struct _mysql_data_stream_t mysql_data_stream_t;
typedef struct _mysql_session_t mysql_session_t;
typedef struct _bytes_stats_t bytes_stats_t;
typedef struct _mysql_hdr mysql_hdr;
//typedef struct _mysql_cp_entry_t mysql_cp_entry_t;
typedef int (*PKT_HANDLER)(u_char *pkt, u_int len);
typedef struct __fdb_hash_t fdb_hash_t;
typedef struct __fdb_hash_entry fdb_hash_entry;
typedef unsigned spinlock;
typedef struct _rwlock_t rwlock_t;
typedef struct _PtrSize_t PtrSize_t;
typedef struct _proxysql_mysql_thread_t proxysql_mysql_thread_t;
//typedef struct _mysql_server_t mysql_server_t;
#endif /* PROXYSQL_TYPEDEFS */
//#ifdef __cplusplus
#ifndef PROXYSQL_CLASSES
#define PROXYSQL_CLASSES
class MySQL_Data_Stream;
//class MySQL_Session_userinfo;
class MySQL_Connection_userinfo;
class MySQL_Session;
class MySQL_Backend;
class MySQL_Thread;
class MySQL_Threads_Handler;
class SQLite3DB;
class SimpleKV;
class AdvancedKV;
class ProxySQL_Poll;
//class Query_Cache;
class Shared_Query_Cache;
class MySQL_Authentication;
class MySQL_Connection;
class PtrArray;
class StatCounters;
class ProxySQL_ConfigFile;
//class MySQL_Server;
class SQLite3_result;
//class MySQL_Servers;
//class MySQL_Hostgroup_Entry;
//class MySQL_Hostgroup;
//class MySQL_HostGroups_Handler;
class MySQL_HostGroups_Manager;
#endif /* PROXYSQL_CLASSES */
//#endif /* __cplusplus */
#ifndef PROXYSQL_STRUCTS
#define PROXYSQL_STRUCTS
/*
struct _mysql_server_t {
char *address;
uint16_t port;
uint16_t flags;
unsigned int connections;
unsigned char alive;
enum proxysql_server_status status;
};
*/
struct _PtrSize_t {
void *ptr;
unsigned int size;
};
// struct for debugging module
#ifdef DEBUG
struct _debug_level {
enum debug_module module;
int verbosity;
char *name;
};
#endif /* DEBUG */
struct _rwlock_t {
spinlock lock;
unsigned readers;
};
// counters for number of bytes received and sent
struct _bytes_stats_t {
uint64_t bytes_recv;
uint64_t bytes_sent;
};
struct __fdb_hash_t {
//pthread_rwlock_t lock;
rwlock_t lock;
//GHashTable *hash;
//PtrArray *ptrArray;
uint64_t dataSize;
uint64_t purgeChunkSize;
uint64_t purgeIdx;
};
struct __fdb_hash_entry {
unsigned char *key;
unsigned char *value;
fdb_hash_t *hash;
struct __fdb_hash_entry *self;
uint32_t klen;
uint32_t length;
time_t expire;
time_t access;
uint32_t ref_count;
};
#define MAX_EVENTS_PER_STATE 15
struct mysql_protocol_events {
PKT_HANDLER ha[MAX_EVENTS_PER_STATE];
uint8_t num_events;
uint8_t event[MAX_EVENTS_PER_STATE];
uint8_t next_state[MAX_EVENTS_PER_STATE];
};
/*
// mysql backend
struct _mysql_backend_t {
// attributes
//int fd;
//MSHGE *mshge;
//mysql_connpool *last_mysql_connpool;
int hostgroup_id;
MySQL_Data_Stream *server_myds;
mysql_cp_entry_t *server_mycpe;
bytes_stats_t server_bytes_at_cmd;
};
*/
/*
// mysql connection pool entry
struct _mysql_cp_entry_t {
MYSQL *conn;
unsigned long long expire;
int reusable;
};
*/
// this struct define global variable entries, and how these are configured during startup
struct _global_variable_entry_t {
const char *group_name; // [group name] in proxysql.cnf
const char *key_name; // key name
int dynamic; // if dynamic > 0 , reconfigurable
//GOptionArg arg; // type of variable
void *arg_data; // pointer to variable
const char *description;
long long value_min;
long long value_max;
long long value_round; // > 0 if value needs to be rounded
int value_multiplier; // if the value needs to be multiplied
long long int_default; // numeric default if applies
const char *char_default; // string default if applies
void (*func_pre)(global_variable_entry_t *); // function called before initializing variable
void (*func_post)(global_variable_entry_t *); // function called after initializing variable
};
// structure that defines mysql protocol header
struct _mysql_hdr {
u_int pkt_length:24, pkt_id:8;
};
struct _proxysql_mysql_thread_t {
MySQL_Thread *worker;
pthread_t thread_id;
};
/* Every communication between client and proxysql, and between proxysql and mysql server is
* performed within a mysql_data_stream_t
*/
struct _mysql_data_stream_t {
mysql_session_t *sess; // pointer to the session using this data stream
//MySQL_Backend *mybe; // if this is a connection to a mysql server, this points to a backend structure
uint64_t pkts_recv; // counter of received packets
uint64_t pkts_sent; // counter of sent packets
bytes_stats_t bytes_info; // bytes statistics
int fd; // file descriptor
struct evbuffer *evbIN;
struct evbuffer *evbOUT;
//mysql_uni_ds_t input;
//mysql_uni_ds_t output;
int active_transaction; // 1 if there is an active transaction
int active; // data stream is active. If not, shutdown+close needs to be called
int status; // status . FIXME: make it a ORable variable
};
struct _global_variables_t {
//pthread_rwlock_t rwlock_global;
pthread_rwlock_t rwlock_usernames;
bool has_debug;
volatile int shutdown;
bool nostart;
int reload;
unsigned char protocol_version;
char *mysql_server_version;
uint16_t server_capabilities;
uint8_t server_language;
uint16_t server_status;
uint32_t thread_id;
int merge_configfile_db;
int core_dump_file_size;
int stack_size;
char *proxy_admin_socket;
char *proxy_mysql_bind;
char *proxy_admin_bind; // FIXME: to remove
char *proxy_stats_bind; // FIXME: to remove
int proxy_mysql_port; // FIXME: to remove
int proxy_admin_port; // FIXME: to remove
int proxy_stats_port; // FIXME: to remove
int proxy_admin_refresh_status_interval; // FIXME: to remove
int proxy_stats_refresh_status_interval; // FIXME: to remove
//int proxy_flush_status_interval;
int backlog;
//int print_statistics_interval;
int admin_sync_disk_on_flush;
int admin_sync_disk_on_shutdown;
int mysql_poll_timeout;
int mysql_poll_timeout_maintenance;
int mysql_maintenance_timeout;
int mysql_threads;
bool mysql_auto_reconnect_enabled;
bool mysql_query_cache_enabled;
bool mysql_query_cache_precheck;
bool mysql_query_statistics;
bool mysql_query_statistics_interval;
int mysql_query_cache_partitions;
int mysql_parse_trx_cmds;
int mysql_share_connections;
unsigned int mysql_query_cache_default_timeout;
unsigned long long mysql_wait_timeout;
unsigned long long mysql_query_cache_size;
unsigned long long mysql_max_resultset_size;
int mysql_max_query_size;
int mysql_hostgroups;
// this user needs only USAGE grants
// and it is use only to create a connection
char *mysql_usage_user;
char *mysql_usage_password;
char *proxy_admin_user;
char *proxy_admin_password;
//char *proxy_monitor_user;
//char *proxy_monitor_password;
char *mysql_default_schema;
char *mysql_socket;
char *proxy_datadir;
char *proxy_admin_pathdb;
char *persistent_statistics_pathdb;
char *debug_pathdb;
char *proxy_pidfile;
char *proxy_errorlog;
char *proxy_debuglog;
char *proxy_configfile;
int proxy_restart_on_error;
int proxy_restart_delay;
int http_start;
//GHashTable *usernames;
//GPtrArray *mysql_users_name;
//GPtrArray *mysql_users_pass;
};
struct _mysql_session_t {
int net_failure;
};
#endif /* PROXYSQL_STRUCTS */
#ifndef EXTERN
#ifndef PROXYSQL_EXTERN
#define EXTERN extern
#else
#define EXTERN
#endif /* PROXYSQL_EXTERN */
#endif /* EXTERN */
//#ifdef __cplusplus
//#include "cpp.h"
#include "proxysql_glovars.hpp"
//#endif
#ifndef GLOBAL_DEFINED
#define GLOBAL_DEFINED
#ifdef DEBUG
//EXTERN debug_level *gdbg_lvl;
//EXTERN int gdbg;
#endif /* DEBUG */
//EXTERN int foreground;
EXTERN global_variables glovars;
/*
EXTERN gchar *__cmd_proxysql_config_file;
EXTERN gchar *__cmd_proxysql_datadir;
EXTERN gchar *__cmd_proxysql_admin_pathdb;
EXTERN gboolean __cmd_proxysql_print_version;
EXTERN int __cmd_proxysql_nostart;
EXTERN int __cmd_proxysql_foreground;
EXTERN int __cmd_proxysql_gdbg;
EXTERN gchar *__cmd_proxysql_admin_socket;
*/
//EXTERN MySQL_Authentication *GMA;
//#ifdef __cplusplus
//class ProxySQL_GlobalVariables;
/*
#ifndef __CLASS_PROXYSQL_GLOVARS_H
#define __CLASS_PROXYSQL_GLOVARS_H
class ProxySQL_GlobalVariables {
public:
ProxySQL_ConfigFile *confFile;
gchar *__cmd_proxysql_config_file;
gchar *__cmd_proxysql_datadir;
gchar *__cmd_proxysql_admin_pathdb;
gboolean __cmd_proxysql_print_version;
int __cmd_proxysql_nostart;
int __cmd_proxysql_foreground;
int __cmd_proxysql_gdbg;
gchar *__cmd_proxysql_admin_socket;
struct {
bool gdbg=false;
bool nostart=false;
int gdb=0;
int backlog;
int stack_size;
char *pidfile;
bool restart_on_error;
int restart_delay;
} global;
struct mysql {
char *server_version;
int poll_timeout;
};
};
#endif
*/
//#endif /* __cplusplus */
#endif /* GLOBAL_DEFINED */
//#ifdef __cplusplus
#ifndef GLOVARS
#define GLOVARS
//#include "proxysql_glovars.hpp"
#ifdef PROXYSQL_EXTERN
#else
//extern ProxySQL_GlobalVariables GloVars;
#endif
#endif
//#endif
//class ProxySQL_GlobalVariables;
#ifdef PROXYSQL_EXTERN
//ProxySQL_GlobalVariables GloVars;
#ifndef GLOBAL_DEFINED_OPTS_ENTRIES
#define GLOBAL_DEFINED_OPTS_ENTRIES
//#include "proxysql_glovars.hpp"
/*
#ifndef __CLASS_PROXYSQL_GLOVARS_H
#define __CLASS_PROXYSQL_GLOVARS_H
class ProxySQL_GlobalVariables {
public:
ProxySQL_ConfigFile *confFile;
gchar *__cmd_proxysql_config_file;
gchar *__cmd_proxysql_datadir;
gchar *__cmd_proxysql_admin_pathdb;
gboolean __cmd_proxysql_print_version;
int __cmd_proxysql_nostart;
int __cmd_proxysql_foreground;
int __cmd_proxysql_gdbg;
gchar *__cmd_proxysql_admin_socket;
struct {
bool gdbg=false;
bool nostart=false;
int gdb=0;
int backlog;
int stack_size;
char *pidfile;
bool restart_on_error;
int restart_delay;
} global;
struct mysql {
char *server_version;
int poll_timeout;
};
};
#endif
*/
ProxySQL_GlobalVariables GloVars;
/*
GOptionEntry cmd_option_entries[] =
{
// { "mysql-port", 0, 0, G_OPTION_ARG_INT, &__cmd_proxysql_mysql_port, "MySQL proxy port", NULL },
// { "admin-socket", 'S', 0, G_OPTION_ARG_FILENAME, &__cmd_proxysql_admin_socket, "Administration Unix Socket", NULL },
// { "admin-socket", 'S', 0, G_OPTION_ARG_FILENAME, &GloVars.__cmd_proxysql_admin_socket, "Administration Unix Socket", NULL },
// { "no-start", 'n', 0, G_OPTION_ARG_NONE, &GloVars.__cmd_proxysql_nostart, "Starts only the admin service", NULL },
// { "foreground", 'f', 0, G_OPTION_ARG_NONE, &GloVars.__cmd_proxysql_foreground, "Run in foreground", NULL },
// { "version", 'V', 0, G_OPTION_ARG_NONE, &GloVars.__cmd_proxysql_print_version, "Print version", NULL },
//#ifdef DEBUG
// { "debug", 'd', 0, G_OPTION_ARG_NONE, &GloVars.__cmd_proxysql_gdbg, "debug", NULL },
//#endif // DEBUG
// { "datadir", 'D', 0, G_OPTION_ARG_FILENAME, &GloVars.__cmd_proxysql_datadir, "Datadir", NULL },
// { "admin-pathdb", 'a', 0, G_OPTION_ARG_FILENAME, &GloVars.__cmd_proxysql_admin_pathdb, "Configuration DB path", NULL },
// { "config", 'c', 0, G_OPTION_ARG_FILENAME, &GloVars.__cmd_proxysql_config_file, "Configuration text file", NULL },
{ NULL }
};
*/
#endif // GLOBAL_DEFINED_OPTS_ENTRIES
#ifndef GLOBAL_DEFINED_HOSTGROUP
#define GLOBAL_DEFINED_HOSTGROUP
//MySQL_HostGroups_Handler *MyHGH;
MySQL_HostGroups_Manager *MyHGM;
__thread char *mysql_thread___default_schema;
__thread char *mysql_thread___server_version;
__thread int mysql_thread___ping_interval_server;
__thread int mysql_thread___ping_timeout_server;
__thread int mysql_thread___connect_timeout_server;
__thread char *mysql_thread___connect_timeout_server_error;
__thread uint16_t mysql_thread___server_capabilities;
__thread uint8_t mysql_thread___default_charset;
__thread int mysql_thread___poll_timeout;
__thread int mysql_thread___poll_timeout_on_failure;
__thread bool mysql_thread___have_compress;
__thread bool mysql_thread___servers_stats;
__thread bool mysql_thread___commands_stats;
#ifdef DEBUG
__thread bool mysql_thread___session_debug;
#endif /* DEBUG */
#endif /* GLOBAL_DEFINED_HOSTGROUP */
#else
extern ProxySQL_GlobalVariables GloVars;
//extern MySQL_HostGroups_Handler *MyHGH;
extern MySQL_HostGroups_Manager *MyHGM;
//extern GOptionEntry cmd_option_entries[];
extern __thread char *mysql_thread___default_schema;
extern __thread char *mysql_thread___server_version;
extern __thread int mysql_thread___ping_interval_server;
extern __thread int mysql_thread___ping_timeout_server;
extern __thread int mysql_thread___connect_timeout_server;
extern __thread char *mysql_thread___connect_timeout_server_error;
extern __thread uint16_t mysql_thread___server_capabilities;
extern __thread uint8_t mysql_thread___default_charset;
extern __thread int mysql_thread___poll_timeout;
extern __thread int mysql_thread___poll_timeout_on_failure;
extern __thread bool mysql_thread___have_compress;
extern __thread bool mysql_thread___servers_stats;
extern __thread bool mysql_thread___commands_stats;
#ifdef DEBUG
extern __thread bool mysql_thread___session_debug;
#endif /* DEBUG */
#endif /* PROXYSQL_EXTERN */
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