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#include "conf.h"
#include "array.h"
#include "config.h"
#include "nastdio.h"
#include "log.h"
#include "mysqldb.h"
#include "thread.h"
#include <errno.h>
#include <errmsg.h>
#include <mysql.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
RCSID("$Id: mysqldb.c,v 1.30 2001/10/10 20:29:47 shmit Exp $");
extern fieldent *db_fields;
extern char db_key[1024];
extern char db_dbn[1024];
extern char db_tbl[1024];
extern short db_fieldcount;
static char cols[512];
static int sec_c;
static float onemin_c, fivemin_c, fifteenmin_c;
int
mysqldb_new()
{
int i;
sec_c = 0;
onemin_c = fivemin_c = fifteenmin_c = 0;
cols[0] = '\0';
for (i = 0; i < db_fieldcount; i++) {
strncat(cols, db_fields[i].name, sizeof(cols));
if (i < db_fieldcount-1)
strncat(cols, ",", sizeof(cols));
}
return 0;
}
void *
mysqldb_connect_new()
{
MYSQL *dbh;
log_info("Initialising MySQL database.");
dbh = mysql_init(NULL);
if (dbh == NULL) {
log_err("Couldn't allocate mysql handle: %s.",
strerror(errno));
return NULL;
}
if (!mysql_real_connect(dbh, config.mysql_host,
config.mysql_user, config.mysql_pass,
db_dbn, 0, NULL, 0)) {
log_err("Couldn't open connection to database: %s.",
mysql_error(dbh));
mysqldb_connect_close(dbh);
return NULL;
}
log_info("MySQL database interface initialised.");
return (void *)dbh;
}
void
mysqldb_connect_close(void *dbh)
{
if (dbh != NULL) {
log_info("MySQL connection shutting down.");
mysql_close(dbh);
free(dbh);
}
}
int
mysqldb_get(reqthread_t *self, const char *key, int keylen, array_t *aa)
{
MYSQL *dbh;
MYSQL_RES *result;
char buffer[1024];
MYSQL_ROW row;
int i, rc;
snprintf(buffer, sizeof(buffer), DBSELECT, cols, db_tbl, db_key, key);
if (self->arg == NULL) {
self->arg = mysqldb_connect_new();
if (self->arg == NULL)
return -1;
}
dbh = (MYSQL *)self->arg;
rc = mysql_query(dbh, buffer);
if (rc) {
log_err("Error performing query: %s.", mysql_error(dbh));
mysqldb_connect_close(dbh);
self->arg = NULL;
return -1;
}
result = mysql_use_result(dbh);
row = mysql_fetch_row(result);
if (row == NULL) {
log_info("Couldn't find %s in MySQL database.",
key);
mysql_free_result(result);
sec_c++;
return 1;
}
if (mysql_num_fields(result) < db_fieldcount) {
log_err("MySQL server didn't return all fields.");
mysql_free_result(result);
return 0;
}
for (i = 0; i < db_fieldcount; i++) {
if (array_add(aa, strlen(row[i]), row[i], ARRTERM) == -1) {
mysql_free_result(result);
return -1;
}
}
while (mysql_fetch_row(result));
mysql_free_result(result);
sec_c++;
return 0;
}
int
mysqldb_stats(array_t *statarr)
{
char buffer[512];
snprintf(buffer, sizeof(buffer), "MySQL: %.2f, %.2f, %.2f",
onemin_c, fivemin_c, fifteenmin_c);
return array_add(statarr, strlen(buffer), buffer, ARRTERM);
}
void
mysqldb_collate()
{
onemin_c = ((onemin_c * 59) + sec_c) / 60;
fivemin_c = ((fivemin_c * 299) + sec_c) / 300;
fifteenmin_c = ((fifteenmin_c * 899) + sec_c) / 900;
sec_c = 0;
}
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