TT#106253 cleanup TLS variables on shutdown

Change-Id: I77f88e6a34e4720f6fbd0c585d2cf9843a3b309e

recording-daemon/db.c

@@ -451,3 +451,7 @@ void db_config_stream(output_t *op) {
 
 	execute_wrap(&stm_config_stream, b, NULL);
 }
+
+void db_thread_end(void) {
+	reset_conn();
+}

recording-daemon/db.h

@@ -10,6 +10,7 @@ void db_do_stream(metafile_t *mf, output_t *op, const char *type, stream_t *, un
 void db_close_stream(output_t *op);
 void db_delete_stream(output_t *op);
 void db_config_stream(output_t *op);
+void db_thread_end(void);
 
 
 #endif

recording-daemon/epoll.c

@@ -7,6 +7,7 @@
 #include "log.h"
 #include "main.h"
 #include "garbage.h"
+#include "db.h"
 
 
 static int epoll_fd = -1;
@@ -34,6 +35,7 @@ void epoll_del(int fd) {
 
 static void poller_thread_end(void *ptr) {
 	mysql_thread_end();
+	db_thread_end();
 }