[info] Show number of temporary files

src/dialogs/info.cpp

@@ -259,7 +259,11 @@ get_resource_info(struct terminal *term, void *data)
 
 	val = list_size(&sessions);
 	val_add(n_("%ld session", "%ld sessions", val, term));
-	add_char_to_string(&info, '.');
+	add_to_string(&info, ".\n");
+
+	add_to_string(&info, _("Number of temporary files", term));
+	val = get_number_of_temporary_files();
+	add_format_to_string(&info, ": %ld.", val);
 
 #ifdef DEBUG_MEMLEAK
 	add_char_to_string(&info, '\n');

src/terminal/terminal.cpp

@@ -72,6 +72,12 @@ clean_temporary_files(void)
 	uri_tempfiles.clear();
 }
 
+long
+get_number_of_temporary_files(void)
+{
+	return temporary_files.size();
+}
+
 void
 redraw_terminal(struct terminal *term)
 {

src/terminal/terminal.h

@@ -208,6 +208,7 @@ void destroy_all_terminals(void);
 void exec_thread(char *, int);
 void close_handle(void *);
 void clean_temporary_files(void);
+long get_number_of_temporary_files(void);
 
 #ifdef CONFIG_FASTMEM
 #define assert_terminal_ptr_not_dangling(suspect) ((void) 0)