db_postgres: libssl thread guard for db_postgres_close

src/modules/db_postgres/km_dbase.c

@@ -45,6 +45,7 @@
 #include "../../core/clist.h"
 #define KSR_RTHREAD_NEED_PI
 #define KSR_RTHREAD_NEED_4PP
+#define KSR_RTHREAD_NEED_0P
 #include "../../core/rthreads.h"
 #include "km_dbase.h"
 #include "km_pg_con.h"
@@ -147,11 +148,16 @@ db1_con_t *db_postgres_init2(const str *_url, db_pooling_t pooling)
  * \param _h closed connection, as returned from db_postgres_init
  * \note free all memory and resources
  */
-void db_postgres_close(db1_con_t *_h)
+static void db_postgres_close_impl(db1_con_t *_h)
 {
 	db_do_close(_h, db_postgres_free_connection);
 }
 
+void db_postgres_close(db1_con_t *_h)
+{
+	run_thread0P((_thread_proto0P)db_postgres_close_impl, _h);
+}
+
 
 /*!
  * \brief Submit_query, run a query