static int mysql_drive_session(eventer_t e, int mask, void *closure,
struct timeval *now) {
const char *dsn, *sql;
char sql_buff[8192];
char dsn_buff[512];
mysql_check_info_t *ci = closure;
noit_check_t *check = ci->check;
struct timeval t1, t2, diff;
mtev_hash_table dsn_h = MTEV_HASH_EMPTY;
const char *host=NULL;
const char *user=NULL;
const char *password=NULL;
const char *dbname=NULL;
const char *port_s=NULL;
const char *socket=NULL;
const char *sslmode=NULL;
u_int32_t port;
unsigned long client_flag = CLIENT_IGNORE_SIGPIPE;
unsigned int timeout;
if(mask & (EVENTER_READ | EVENTER_WRITE)) {
/* this case is impossible from the eventer. It is called as
* such on the synchronous completion of the event.
*/
mysql_log_results(ci->self, ci->check);
mysql_cleanup(ci->self, ci->check);
check->flags &= ~NP_RUNNING;
return 0;
}
switch(mask) {
case EVENTER_ASYNCH_WORK:
ci->connect_duration = NULL;
ci->query_duration = NULL;
FETCH_CONFIG_OR(dsn, "");
noit_check_interpolate(dsn_buff, sizeof(dsn_buff), dsn,
&ci->attrs, check->config);
mysql_parse_dsn(dsn_buff, &dsn_h);
mtev_hash_retrieve(&dsn_h, "host", strlen("host"), (void**)&host);
mtev_hash_retrieve(&dsn_h, "user", strlen("user"), (void**)&user);
mtev_hash_retrieve(&dsn_h, "password", strlen("password"), (void**)&password);
mtev_hash_retrieve(&dsn_h, "dbname", strlen("dbname"), (void**)&dbname);
mtev_hash_retrieve(&dsn_h, "port", strlen("port"), (void**)&port_s);
if(mtev_hash_retrieve(&dsn_h, "sslmode", strlen("sslmode"), (void**)&sslmode) &&
!strcmp(sslmode, "require"))
client_flag |= CLIENT_SSL;
port = port_s ? strtol(port_s, NULL, 10) : 3306;
mtev_hash_retrieve(&dsn_h, "socket", strlen("socket"), (void**)&socket);
ci->conn = mysql_init(NULL); /* allocate us a handle */
if(!ci->conn) AVAIL_BAIL("mysql_init failed");
timeout = check->timeout / 1000;
mysql_options(ci->conn, MYSQL_OPT_CONNECT_TIMEOUT, (const char *)&timeout);
if(!mysql_real_connect(ci->conn, host, user, password,
dbname, port, socket, client_flag)) {
mtevL(noit_stderr, "error during mysql_real_connect: %s\n",
mysql_error(ci->conn));
AVAIL_BAIL(mysql_error(ci->conn));
}
if(mysql_ping(ci->conn))
AVAIL_BAIL(mysql_error(ci->conn));
#if MYSQL_VERSION_ID >= 50000
if (sslmode && !strcmp(sslmode, "require")) {
/* mysql has a bad habit of silently failing to establish ssl and
* falling back to unencrypted, so after making the connection, let's
* check that we're actually using SSL by checking for a non-NULL
* return value from mysql_get_ssl_cipher().
*/
if (mysql_get_ssl_cipher(ci->conn) == NULL) {
mtevL(nldeb, "mysql_get_ssl_cipher() returns NULL, but SSL mode required.");
AVAIL_BAIL("mysql_get_ssl_cipher() returns NULL, but SSL mode required.");
}
}
#endif
gettimeofday(&t1, NULL);
sub_timeval(t1, check->last_fire_time, &diff);
ci->connect_duration_d = diff.tv_sec * 1000.0 + diff.tv_usec / 1000.0;
ci->connect_duration = &ci->connect_duration_d;
FETCH_CONFIG_OR(sql, "");
noit_check_interpolate(sql_buff, sizeof(sql_buff), sql,
&ci->attrs, check->config);
if (mysql_query(ci->conn, sql_buff))
AVAIL_BAIL(mysql_error(ci->conn));
gettimeofday(&t2, NULL);
sub_timeval(t2, t1, &diff);
ci->query_duration_d = diff.tv_sec * 1000.0 + diff.tv_usec / 1000.0;
ci->query_duration = &ci->query_duration_d;
ci->result = mysql_store_result(ci->conn);
if(!ci->result) AVAIL_BAIL("mysql_store_result failed");
ci->rv = mysql_num_rows(ci->result);
mysql_ingest_stats(ci);
if(ci->result) {
MYSQL_RES *result_swap = ci->result;
ci->result = NULL;
mysql_free_result(result_swap);
}
if(ci->conn) {
MYSQL *conn_swap = ci->conn;
ci->conn = NULL;
mysql_close(conn_swap);
}
ci->timed_out = 0;
mtev_hash_destroy(&dsn_h, free, free);
return 0;
break;
case EVENTER_ASYNCH_CLEANUP:
/* This sets us up for a completion call. */
e->mask = EVENTER_READ | EVENTER_WRITE;
break;
default:
abort();
}
return 0;
}
static int postgres_drive_session(eventer_t e, int mask, void *closure,
struct timeval *now) {
const char *dsn, *sql;
char sql_buff[8192];
char dsn_buff[512];
struct timeval t1, t2, diff;
postgres_check_info_t *ci = closure;
noit_check_t *check = ci->check;
if(mask & (EVENTER_READ | EVENTER_WRITE)) {
/* this case is impossible from the eventer. It is called as
* such on the synchronous completion of the event.
*/
postgres_log_results(ci->self, ci->check);
postgres_cleanup(ci->self, ci->check);
check->flags &= ~NP_RUNNING;
return 0;
}
switch(mask) {
case EVENTER_ASYNCH_WORK:
noit_check_stats_clear(&ci->current);
ci->connect_duration = NULL;
ci->query_duration = NULL;
FETCH_CONFIG_OR(dsn, "");
noit_check_interpolate(dsn_buff, sizeof(dsn_buff), dsn,
&ci->attrs, check->config);
ci->conn = PQconnectdb(dsn_buff);
if(!ci->conn) AVAIL_BAIL("PQconnectdb failed");
if(PQstatus(ci->conn) != CONNECTION_OK)
AVAIL_BAIL(PQerrorMessage(ci->conn));
FETCH_CONFIG_OR(sql, "");
noit_check_interpolate(sql_buff, sizeof(sql_buff), sql,
&ci->attrs, check->config);
gettimeofday(&t1, NULL);
sub_timeval(t1, check->last_fire_time, &diff);
ci->connect_duration_d = diff.tv_sec * 1000.0 + diff.tv_usec / 1000.0;
ci->connect_duration = &ci->connect_duration_d;
ci->result = PQexec(ci->conn, sql_buff);
gettimeofday(&t2, NULL);
sub_timeval(t2, t1, &diff);
ci->query_duration_d = diff.tv_sec * 1000.0 + diff.tv_usec / 1000.0;
ci->query_duration = &ci->query_duration_d;
if(!ci->result) AVAIL_BAIL("PQexec failed");
ci->rv = PQresultStatus(ci->result);
switch(ci->rv) {
case PGRES_TUPLES_OK:
postgres_ingest_stats(ci);
case PGRES_COMMAND_OK:
break;
default:
AVAIL_BAIL(PQresultErrorMessage(ci->result));
}
if(ci->result) {
PGresult *result_swap = ci->result;
ci->result = NULL;
PQclear(result_swap);
}
if(ci->conn) {
PGconn *conn_swap = ci->conn;
ci->conn = NULL;
PQfinish(conn_swap);
}
ci->timed_out = 0;
return 0;
break;
case EVENTER_ASYNCH_CLEANUP:
/* This sets us up for a completion call. */
e->mask = EVENTER_READ | EVENTER_WRITE;
break;
default:
abort();
}
return 0;
}