proxysql/oldcode/include/fundadb.h

#define num_hashes 24
#define EXPIRE_DROPIT   0

/*
#define HASH_PURGETIME_USEC  10000000
#define HASH_PURGELOOP_USEC  100000
#define HASH_EXPIRE_MAX              365*24*3600
#define HASH_EXPIRE_DEFAULT  3600
*/
#define UDF_BUFFER_SIZE 255
#define UDF_BUFFER_YES  1
#define UDF_BUFFER_NO   2


/*
// the follow macro is used to verify if the connections were initialized
#define CHECK_HASH_INIT if ((__sync_fetch_and_add(&hash_initialized, 0))==0) { strcpy(message, "No avaliable servers"); return 1; }
#define CHECK_QUEUE_INIT if ((__sync_fetch_and_add(&queue_initialized, 0))==0) { strcpy(message, "No avaliable servers"); return 1; }
*/

#ifdef DEFINE_VARIABLES
unsigned int hash_initialized=0;
//unsigned int queue_initialized=0;
#else
extern unsigned int hash_initialized;
//extern unsigned int queue_initialized;
#endif /* DEFINE_VARIABLES */


//EXTERN fdb_system_var_t fdb_system_var;
//EXTERN fdb_hash_t **fdb_hashes;

struct __fdb_hash_t {
    pthread_rwlock_t lock;
    GHashTable *hash;
    GPtrArray *ptrArray;
    long long dataSize;
    long long purgeChunkSize;
    long long purgeIdx;
};

struct __fdb_hashes_group_t {
	fdb_hash_t **fdb_hashes;
	int size;
	time_t now;
    unsigned int hash_expire_default;
	long long max_memory_size;
    unsigned long long cntDel;
    unsigned long long cntGet;
    unsigned long long cntGetOK;
    unsigned long long cntSet;
    unsigned long long cntSetERR;
	unsigned long long cntPurge;
	unsigned long long size_keys;
	unsigned long long size_values;
	unsigned long long size_metas;
	unsigned long long dataIN;
	unsigned long long dataOUT;
};

struct __fdb_hash_entry {
    char *key;
    char *value;
    fdb_hash_t *hash;
    struct __fdb_hash_entry *self;
    unsigned int klen;
    unsigned int length;
    time_t expire;
    time_t access;
		int ref_count;
};

pkt * fdb_get(fdb_hashes_group_t *, const char *, mysql_session_t *);
gboolean fdb_set(fdb_hashes_group_t * , void *, unsigned int , void *, unsigned int , time_t, gboolean);
long long fdb_del(UDF_INIT *initid, UDF_ARGS *args, char *is_null, char *error);
inline void hash_value_destroy_func(void *);
void fdb_hashes_new(fdb_hashes_group_t *, size_t, unsigned int, unsigned long long);
long long fdb_truncate_all(fdb_hashes_group_t *);
void *purgeHash_thread(void *);
long long fdb_hash_init(UDF_INIT *initid, UDF_ARGS *args, char *is_null, char *error);
long long fdb_hashes_group_free_mem(fdb_hashes_group_t *);
int fdb_hashes_group_used_mem_pct(fdb_hashes_group_t *);


// Added by chan -------
struct __qr_hash_t {
	pthread_rwlock_t lock;
	GHashTable *c_hash;
	GHashTable *p_hash;
	struct __qr_hash_entry *c_ptr_first;
	struct __qr_hash_entry *p_ptr_first;
	time_t modify;
};

struct __qr_hash_entry
{
	char *key;
	struct __qr_hash_entry *value;
	volatile unsigned int exec_cnt;
	char *query_digest_text;
	char *query_digest_md5;
	int hostgroup_id;
	char *username;
	char *schemaname;
	char *mysql_server_address;
	long query_time;
	int mysql_server_port;
};

inline void qr_hash_value_destroy_func(void *);
void qr_hashes_new(qr_hash_t *);
void qr_set(char *, char *);
inline void flush_query_stats (gpointer, gpointer);
void *qr_report_thread(void *);
// Added by chan end.