static void do_an_operation(void)
{
/* Half the time operate on already open files */
if (tests_random_no(100) < 50)
operate_on_dir(top_dir);
else
operate_on_an_open_file();
}
/* Randomly select something to do with a directory entry */
static void operate_on_entry(struct dir_entry_info *entry)
{
/* If shrinking, 1 time in 50, remove a directory */
if (entry->type == 'd') {
if (shrink && tests_random_no(50) == 0) {
dir_remove(entry->entry.dir);
return;
}
operate_on_dir(entry->entry.dir);
}
/* If shrinking, 1 time in 10, remove a file */
if (entry->type == 'f') {
if (shrink && tests_random_no(10) == 0) {
file_delete(entry->entry.file);
return;
}
operate_on_file(entry->entry.file);
}
}
/* Randomly select something to do with a directory entry */
static void operate_on_entry(struct dir_entry_info *entry)
{
/* 1 time in 1000 rename */
if (tests_random_no(1000) == 0) {
rename_entry(entry);
return;
}
if (entry->type == 's') {
symlink_check(entry->entry.symlink);
/* If shrinking, 1 time in 50, remove a symlink */
if (shrink && tests_random_no(50) == 0)
symlink_remove(entry->entry.symlink);
return;
}
if (entry->type == 'd') {
/* If shrinking, 1 time in 50, remove a directory */
if (shrink && tests_random_no(50) == 0) {
dir_remove(entry->entry.dir);
return;
}
operate_on_dir(entry->entry.dir);
}
if (entry->type == 'f') {
/* If shrinking, 1 time in 10, remove a file */
if (shrink && tests_random_no(10) == 0) {
file_delete(entry->entry.file);
return;
}
/* If not growing, 1 time in 10, unlink a file with links > 1 */
if (!grow && entry->entry.file->link_count > 1 &&
tests_random_no(10) == 0) {
file_unlink_file(entry->entry.file);
return;
}
operate_on_file(entry->entry.file);
}
}