- return (uid * PRIME1 + ((uid * PRIME2) | 1) * probe_num)
- % uid_hash_table_size;
-}
-
-#define FOR_EACH_USER(ui) for (ui = uid_hash_table; ui && ui < uid_hash_table \
- + uid_hash_table_size; ui++)
-
-enum search_uid_flags {
- OPEN_USER_TABLE = 1,
- CREATE_USER_TABLE = 2,
-};
-
-static int uid_is_admissible(uint32_t uid)
-{
- int i;
-
- for (i = 0; i < conf.uid_given; i++) {
- struct uid_range *ur = admissible_uids + i;
-
- if (ur->low <= uid && ur->high >= uid)
- break;
- }
- i = !conf.uid_given || i < conf.uid_given;
- DEBUG_LOG("uid %u is %sadmissible\n", (unsigned)uid,
- i? "" : "not ");
- return i;
-}
-
-static int search_uid(uint32_t uid, enum search_uid_flags flags,
- struct user_info **ui_ptr)
-{
- uint32_t p;
-
- for (p = 0; p < uid_hash_table_size; p++) {
- struct user_info *ui = uid_hash_table + double_hash(uid, p);
-
- if (!ui_used(ui)) {
- int ret;
- if (!flags)
- return -E_BAD_UID;
- ui->uid = uid;
- ui->flags |= UI_FL_SLOT_USED;
- if (!uid_is_admissible(uid))
- return 0;
- ui->flags |= UI_FL_ADMISSIBLE;
- ret = open_user_table(ui, flags & CREATE_USER_TABLE);
- if (ret < 0)
- return ret;
-
- if (ui_ptr)
- *ui_ptr = ui;
- return 1;
- }
- if (ui->uid != uid)
- continue;
- if (ui_ptr)
- *ui_ptr = ui;
- return 0;
- }
- return flags? -E_HASH_TABLE_OVERFLOW : -E_BAD_UID;
-}
-
-static int update_user_row(struct osl_table *t, uint64_t dir_num,
- uint64_t *add)
-{
- struct osl_row *row;
- struct osl_object obj = {.data = &dir_num, .size = sizeof(dir_num)};
-
- int ret = osl_get_row(t, UT_DIR_NUM, &obj, &row);
-
- if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
- return ret;
- if (ret < 0) { /* this is the first file we add */
- struct osl_object objects[NUM_UT_COLUMNS];
- uint64_t num_files = 1;
-
- objects[UT_DIR_NUM].data = &dir_num;
- objects[UT_DIR_NUM].size = sizeof(dir_num);
- objects[UT_BYTES].data = add;
- objects[UT_BYTES].size = sizeof(*add);
- objects[UT_FILES].data = &num_files;
- objects[UT_FILES].size = sizeof(num_files);
- INFO_LOG("######################### ret: %d\n", ret);
- ret = osl_add_row(t, objects);
- INFO_LOG("######################### ret: %d\n", ret);
- return ret;
- } else { /* add size and increment file count */
- uint64_t num;
- struct osl_object obj1, obj2 = {.data = &num, .size = sizeof(num)};
-
- ret = osl_get_object(t, row, UT_BYTES, &obj1);
- if (ret < 0)
- return ret;
- num = *(uint64_t *)obj1.data + *add;
- ret = osl_update_object(t, row, UT_BYTES, &obj2);
- if (ret < 0)
- return ret;
- ret = osl_get_object(t, row, UT_FILES, &obj1);
- if (ret < 0)
- return ret;
- num = *(uint64_t *)obj1.data + 1;
- return osl_update_object(t, row, UT_FILES, &obj2);
- }
-}
-
-static uint64_t num_dirs;
-static uint64_t num_files;
-static uint64_t num_bytes;
-
-int scan_dir(char *dirname)
-{
- DIR *dir;
- struct dirent *entry;
- int ret, cwd_fd, ret2;
- uint64_t dir_size = 0, dir_files = 0;
- uint64_t this_dir_num = num_dirs++;
-
- DEBUG_LOG("----------------- %llu: %s\n", (long long unsigned)num_dirs, dirname);
- ret = para_opendir(dirname, &dir, &cwd_fd);
- if (ret < 0) {
- if (ret != -ERRNO_TO_ERROR(EACCES))
- return ret;
- WARNING_LOG("permission denied for %s\n", dirname);
- return 1;
- }
- while ((entry = readdir(dir))) {
- mode_t m;
- char *tmp;
- struct stat s;
- uint32_t uid;
- uint64_t size;
- struct user_info *ui;
-
- if (!strcmp(entry->d_name, "."))
- continue;
- if (!strcmp(entry->d_name, ".."))
- continue;
- if (lstat(entry->d_name, &s) == -1) {
- WARNING_LOG("lstat error for %s/%s\n", dirname,
- entry->d_name);
- continue;
- }
- m = s.st_mode;
- if (!S_ISREG(m) && !S_ISDIR(m))
- continue;
- if (S_ISDIR(m)) {
- tmp = make_message("%s/%s", dirname, entry->d_name);
- ret = scan_dir(tmp);
- free(tmp);
- if (ret < 0)
- goto out;
- continue;
- }
- /* regular file */
- size = s.st_size;
- dir_size += size;
- num_bytes += size;
- dir_files++;
- num_files++;
- uid = s.st_uid;
- ret = search_uid(uid, CREATE_USER_TABLE | OPEN_USER_TABLE, &ui);
- if (ret < 0)
- goto out;
- ui->bytes += size;
- ui->files++;
- ret = update_user_row(ui->table, this_dir_num, &size);
- if (ret < 0)
- goto out;
- }
- ret = add_directory(dirname, this_dir_num, &dir_size, &dir_files);
-out:
- closedir(dir);
- ret2 = para_fchdir(cwd_fd);
- if (ret2 < 0 && ret >= 0)
- ret = ret2;
- close(cwd_fd);
- return ret;