diff options
Diffstat (limited to 'tests/fs-tests/integrity')
| -rw-r--r-- | tests/fs-tests/integrity/integck.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/tests/fs-tests/integrity/integck.c b/tests/fs-tests/integrity/integck.c index 481a035..73eeab6 100644 --- a/tests/fs-tests/integrity/integck.c +++ b/tests/fs-tests/integrity/integck.c @@ -87,6 +87,7 @@ struct dir_entry_info /* Each entry in a directory has one of these */ { struct file_info *file; struct dir_info *dir; + void *target; } entry; }; @@ -292,6 +293,8 @@ static void add_dir_entry(struct dir_info *parent, char type, const char *name, entry->entry.dir = dir; dir->entry = entry; + dir->name = copy_string(name); + dir->parent = parent; } } @@ -315,6 +318,8 @@ static void remove_dir_entry(struct dir_entry_info *entry) if (file->links == entry) file->links = entry->next_link; file->link_count -= 1; + if (file->link_count == 0) + file->deleted = 1; } free(entry->name); @@ -1354,12 +1359,153 @@ static struct file_info *pick_file(void) } } +static struct dir_info *pick_dir(void) +{ + struct dir_info *dir = top_dir; + + if (tests_random_no(40) >= 30) + return dir; + for (;;) { + struct dir_entry_info *entry; + size_t r; + + r = tests_random_no(dir->number_of_entries); + entry = dir->first; + while (entry && r) { + entry = entry->next; + --r; + } + for (;;) { + if (!entry) + break; + if (entry->type == 'd') + break; + entry = entry->next; + } + if (!entry) { + entry = dir->first; + for (;;) { + if (!entry) + break; + if (entry->type == 'd') + break; + entry = entry->next; + } + } + if (!entry) + return dir; + dir = entry->entry.dir; + if (tests_random_no(40) >= 30) + return dir; + } +} + +static char *pick_rename_name(struct dir_info **parent, + struct dir_entry_info **rename_entry, int isdir) +{ + struct dir_info *dir = pick_dir(); + struct dir_entry_info *entry; + size_t r; + + *parent = dir; + *rename_entry = NULL; + + if (grow || tests_random_no(20) < 10) + return copy_string(make_name(dir)); + + r = tests_random_no(dir->number_of_entries); + entry = dir->first; + while (entry && r) { + entry = entry->next; + --r; + } + if (!entry) + entry = dir->first; + if (!entry || + (entry->type == 'd' && entry->entry.dir->number_of_entries != 0)) + return copy_string(make_name(dir)); + + if ((isdir && entry->type != 'd') || + (!isdir && entry->type == 'd')) + return copy_string(make_name(dir)); + + *rename_entry = entry; + return copy_string(entry->name); +} + +static void rename_entry(struct dir_entry_info *entry) +{ + struct dir_entry_info *rename_entry = NULL; + struct dir_info *parent; + char *path, *to, *name; + int ret, isdir, retry; + + if (!entry->parent) + return; + + for (retry = 0; retry < 3; retry++) { + path = dir_path(entry->parent, entry->name); + isdir = entry->type == 'd' ? 1 : 0; + name = pick_rename_name(&parent, &rename_entry, isdir); + to = dir_path(parent, name); + /* + * Check we are not trying to move a directory to a subdirectory + * of itself. + */ + if (isdir) { + struct dir_info *p; + + for (p = parent; p; p = p->parent) + if (p == entry->entry.dir) + break; + if (p == entry->entry.dir) { + free(path); + free(name); + free(to); + continue; + } + } + break; + } + + ret = rename(path, to); + if (ret == -1) { + if (errno == ENOSPC) + full = 1; + CHECK(errno == ENOSPC || errno == EBUSY); + free(path); + free(name); + free(to); + return; + } + + free(path); + free(to); + + if (rename_entry && rename_entry->type == entry->type && + rename_entry->entry.target == entry->entry.target) { + free(name); + return; + } + + add_dir_entry(parent, entry->type, name, entry->entry.target); + if (rename_entry) + remove_dir_entry(rename_entry); + remove_dir_entry(entry); + free(name); +} + static void operate_on_dir(struct dir_info *dir); static void operate_on_file(struct file_info *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 == 'd') { /* If shrinking, 1 time in 50, remove a directory */ if (shrink && tests_random_no(50) == 0) { |