rrd based system stats
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

141 lines
2.9 KiB

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mysql/mysql.h>
#include "logging.h"
#include "mysql_helper.h"
void * init_connection(const char *host, const char *user, const char *pass)
{
MYSQL *con = NULL;
con = mysql_init(con);
if (con == NULL)
return NULL;
con = mysql_real_connect(con, host, user, pass, NULL, 0, NULL, 0);
if (con == NULL) {
log_print(LOG_ERROR, "p_mysql: %s", mysql_error(con));
return NULL;
}
return con;
}
int ping_connection(void *mysql)
{
MYSQL *con = mysql;
return mysql_ping(con);
}
int close_connection(void *mysql)
{
MYSQL *con = mysql;
mysql_close(con);
return 0;
}
int get_stats(void *mysql, struct mysql_stats *stats)
{
MYSQL *con = mysql;
char *query;
if (mysql_get_server_version(con) >= 50002)
query = "SHOW GLOBAL STATUS";
else
query = "SHOW STATUS";
if (mysql_real_query(con, query, strlen(query))) {
log_print(LOG_ERROR, "p_mysql: %s", mysql_error(con));
return -1;
}
MYSQL_RES *res;
res = mysql_store_result(con);
if (res == NULL) {
log_print(LOG_ERROR, "p_mysql: %s", mysql_error(con));
return -1;
}
MYSQL_ROW row;
while ((row = mysql_fetch_row(res))) {
char *key;
unsigned long long val;
key = row[0];
val = atoll(row[1]);
if (!strncmp(key, "Bytes_", 6)) {
if (!strcmp(key +6, "received"))
stats->bytes_received = val;
else if (!strcmp(key +6, "sent"))
stats->bytes_sent = val;
} else if (!strncmp(key, "Com_", 4)) {
if (!strcmp(key +4, "delete"))
stats->com_delete = val;
else if (!strcmp(key +4, "insert"))
stats->com_insert = val;
else if (!strcmp(key +4, "select"))
stats->com_select = val;
else if (!strcmp(key +4, "update"))
stats->com_update = val;
} else if (!strcmp(key, "Connections")) {
stats->connections = val;
} else if (!strncmp(key, "Qcache_", 7)) {
if (!strcmp(key +7, "free_blocks"))
stats->qc_free_blocks = val;
else if (!strcmp(key +7, "free_memory"))
stats->qc_free_memory = val;
else if (!strcmp(key +7, "hits"))
stats->qc_hits = val;
else if (!strcmp(key +7, "inserts"))
stats->qc_inserts = val;
else if (!strcmp(key +7, "lowmem_prunes"))
stats->qc_lowmem_prunes = val;
else if (!strcmp(key +7, "not_cached"))
stats->qc_not_cached = val;
else if (!strcmp(key +7, "queries_in_cache"))
stats->qc_queries_in_cache = val;
else if (!strcmp(key +7, "total_blocks"))
stats->qc_total_blocks = val;
} else if (!strcmp(key, "Questions")) {
stats->questions = val;
} else if (!strncmp(key, "Threads_", 8)) {
if (!strcmp(key, "Threads_cached"))
stats->threads_cached = val;
else if (!strcmp(key, "Threads_connected"))
stats->threads_connected = val;
else if (!strcmp(key, "Threads_created"))
stats->threads_created = val;
else if (!strcmp(key, "Threads_running"))
stats->threads_running = val;
}
}
mysql_free_result(res);
return 0;
}