106c3fb27SDimitry Andric //===----------------------------------------------------------------------===// 206c3fb27SDimitry Andric // 306c3fb27SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 406c3fb27SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 506c3fb27SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 606c3fb27SDimitry Andric // 706c3fb27SDimitry Andric //===----------------------------------------------------------------------===// 806c3fb27SDimitry Andric 906c3fb27SDimitry Andric #include <__config> 1006c3fb27SDimitry Andric #include <cstdint> 1106c3fb27SDimitry Andric #include <filesystem> 1206c3fb27SDimitry Andric #include <system_error> 1306c3fb27SDimitry Andric 1406c3fb27SDimitry Andric #include "file_descriptor.h" 1506c3fb27SDimitry Andric #include "posix_compat.h" 1606c3fb27SDimitry Andric #include "time_utils.h" 1706c3fb27SDimitry Andric 1806c3fb27SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_FILESYSTEM 1906c3fb27SDimitry Andric 2006c3fb27SDimitry Andric error_code directory_entry::__do_refresh() noexcept { 2106c3fb27SDimitry Andric __data_.__reset(); 2206c3fb27SDimitry Andric error_code failure_ec; 2306c3fb27SDimitry Andric 2406c3fb27SDimitry Andric detail::StatT full_st; 2506c3fb27SDimitry Andric file_status st = detail::posix_lstat(__p_, full_st, &failure_ec); 2606c3fb27SDimitry Andric if (!status_known(st)) { 2706c3fb27SDimitry Andric __data_.__reset(); 2806c3fb27SDimitry Andric return failure_ec; 2906c3fb27SDimitry Andric } 3006c3fb27SDimitry Andric 315f757f3fSDimitry Andric if (!filesystem::exists(st) || !filesystem::is_symlink(st)) { 3206c3fb27SDimitry Andric __data_.__cache_type_ = directory_entry::_RefreshNonSymlink; 3306c3fb27SDimitry Andric __data_.__type_ = st.type(); 3406c3fb27SDimitry Andric __data_.__non_sym_perms_ = st.permissions(); 3506c3fb27SDimitry Andric } else { // we have a symlink 3606c3fb27SDimitry Andric __data_.__sym_perms_ = st.permissions(); 3706c3fb27SDimitry Andric // Get the information about the linked entity. 3806c3fb27SDimitry Andric // Ignore errors from stat, since we don't want errors regarding symlink 3906c3fb27SDimitry Andric // resolution to be reported to the user. 4006c3fb27SDimitry Andric error_code ignored_ec; 4106c3fb27SDimitry Andric st = detail::posix_stat(__p_, full_st, &ignored_ec); 4206c3fb27SDimitry Andric 4306c3fb27SDimitry Andric __data_.__type_ = st.type(); 4406c3fb27SDimitry Andric __data_.__non_sym_perms_ = st.permissions(); 4506c3fb27SDimitry Andric 4606c3fb27SDimitry Andric // If we failed to resolve the link, then only partially populate the 4706c3fb27SDimitry Andric // cache. 4806c3fb27SDimitry Andric if (!status_known(st)) { 4906c3fb27SDimitry Andric __data_.__cache_type_ = directory_entry::_RefreshSymlinkUnresolved; 5006c3fb27SDimitry Andric return error_code{}; 5106c3fb27SDimitry Andric } 5206c3fb27SDimitry Andric // Otherwise, we resolved the link, potentially as not existing. 5306c3fb27SDimitry Andric // That's OK. 5406c3fb27SDimitry Andric __data_.__cache_type_ = directory_entry::_RefreshSymlink; 5506c3fb27SDimitry Andric } 5606c3fb27SDimitry Andric 575f757f3fSDimitry Andric if (filesystem::is_regular_file(st)) 5806c3fb27SDimitry Andric __data_.__size_ = static_cast<uintmax_t>(full_st.st_size); 5906c3fb27SDimitry Andric 605f757f3fSDimitry Andric if (filesystem::exists(st)) { 6106c3fb27SDimitry Andric __data_.__nlink_ = static_cast<uintmax_t>(full_st.st_nlink); 6206c3fb27SDimitry Andric 6306c3fb27SDimitry Andric // Attempt to extract the mtime, and fail if it's not representable using 6406c3fb27SDimitry Andric // file_time_type. For now we ignore the error, as we'll report it when 6506c3fb27SDimitry Andric // the value is actually used. 6606c3fb27SDimitry Andric error_code ignored_ec; 67*cb14a3feSDimitry Andric __data_.__write_time_ = detail::__extract_last_write_time(__p_, full_st, &ignored_ec); 6806c3fb27SDimitry Andric } 6906c3fb27SDimitry Andric 7006c3fb27SDimitry Andric return failure_ec; 7106c3fb27SDimitry Andric } 7206c3fb27SDimitry Andric 7306c3fb27SDimitry Andric _LIBCPP_END_NAMESPACE_FILESYSTEM 74