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Diffstat (limited to 'libcxx/src/filesystem/operations.cpp')
-rw-r--r--libcxx/src/filesystem/operations.cpp67
1 files changed, 41 insertions, 26 deletions
diff --git a/libcxx/src/filesystem/operations.cpp b/libcxx/src/filesystem/operations.cpp
index bd37c5a..23c1c28 100644
--- a/libcxx/src/filesystem/operations.cpp
+++ b/libcxx/src/filesystem/operations.cpp
@@ -39,8 +39,16 @@
#include <fcntl.h> /* values for fchmodat */
#include <time.h>
-// since Linux 4.5 and FreeBSD 13, but the Linux libc wrapper is only provided by glibc and musl
-#if (defined(__linux__) && (defined(__GLIBC__) || _LIBCPP_HAS_MUSL_LIBC)) || defined(__FreeBSD__)
+// since Linux 4.5 and FreeBSD 13, but the Linux libc wrapper is only provided by glibc >= 2.27 and musl
+#if defined(__linux__)
+# if defined(_LIBCPP_GLIBC_PREREQ)
+# if _LIBCPP_GLIBC_PREREQ(2, 27)
+# define _LIBCPP_FILESYSTEM_USE_COPY_FILE_RANGE
+# endif
+# elif _LIBCPP_HAS_MUSL_LIBC
+# define _LIBCPP_FILESYSTEM_USE_COPY_FILE_RANGE
+# endif
+#elif defined(__FreeBSD__)
# define _LIBCPP_FILESYSTEM_USE_COPY_FILE_RANGE
#endif
#if __has_include(<sys/sendfile.h>)
@@ -100,7 +108,7 @@ path __canonical(path const& orig_p, error_code* ec) {
#if (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112) || defined(_LIBCPP_WIN32API)
std::unique_ptr<path::value_type, decltype(&::free)> hold(detail::realpath(p.c_str(), nullptr), &::free);
if (hold.get() == nullptr)
- return err.report(capture_errno());
+ return err.report(detail::get_last_error());
return {hold.get()};
#else
# if defined(__MVS__) && !defined(PATH_MAX)
@@ -110,7 +118,7 @@ path __canonical(path const& orig_p, error_code* ec) {
# endif
path::value_type* ret;
if ((ret = detail::realpath(p.c_str(), buff)) == nullptr)
- return err.report(capture_errno());
+ return err.report(detail::get_last_error());
return {ret};
#endif
}
@@ -238,8 +246,14 @@ bool copy_file_impl_copy_file_range(FileDescriptor& read_fd, FileDescriptor& wri
return false;
}
// do not modify the fd positions as copy_file_impl_sendfile may be called after a partial copy
+# if defined(__linux__)
+ loff_t off_in = 0;
+ loff_t off_out = 0;
+# else
off_t off_in = 0;
off_t off_out = 0;
+# endif
+
do {
ssize_t res;
@@ -499,9 +513,9 @@ bool __create_directory(const path& p, error_code* ec) {
if (detail::mkdir(p.c_str(), static_cast<int>(perms::all)) == 0)
return true;
- if (errno != EEXIST)
- return err.report(capture_errno());
- error_code mec = capture_errno();
+ error_code mec = detail::get_last_error();
+ if (mec != errc::file_exists)
+ return err.report(mec);
error_code ignored_ec;
const file_status st = status(p, ignored_ec);
if (!is_directory(st))
@@ -523,10 +537,10 @@ bool __create_directory(path const& p, path const& attributes, error_code* ec) {
if (detail::mkdir(p.c_str(), attr_stat.st_mode) == 0)
return true;
- if (errno != EEXIST)
- return err.report(capture_errno());
+ mec = detail::get_last_error();
+ if (mec != errc::file_exists)
+ return err.report(mec);
- mec = capture_errno();
error_code ignored_ec;
st = status(p, ignored_ec);
if (!is_directory(st))
@@ -537,19 +551,19 @@ bool __create_directory(path const& p, path const& attributes, error_code* ec) {
void __create_directory_symlink(path const& from, path const& to, error_code* ec) {
ErrorHandler<void> err("create_directory_symlink", ec, &from, &to);
if (detail::symlink_dir(from.c_str(), to.c_str()) == -1)
- return err.report(capture_errno());
+ return err.report(detail::get_last_error());
}
void __create_hard_link(const path& from, const path& to, error_code* ec) {
ErrorHandler<void> err("create_hard_link", ec, &from, &to);
if (detail::link(from.c_str(), to.c_str()) == -1)
- return err.report(capture_errno());
+ return err.report(detail::get_last_error());
}
void __create_symlink(path const& from, path const& to, error_code* ec) {
ErrorHandler<void> err("create_symlink", ec, &from, &to);
if (detail::symlink_file(from.c_str(), to.c_str()) == -1)
- return err.report(capture_errno());
+ return err.report(detail::get_last_error());
}
path __current_path(error_code* ec) {
@@ -592,7 +606,7 @@ path __current_path(error_code* ec) {
unique_ptr<path::value_type, Deleter> hold(detail::getcwd(ptr, size), deleter);
if (hold.get() == nullptr)
- return err.report(capture_errno(), "call to getcwd failed");
+ return err.report(detail::get_last_error(), "call to getcwd failed");
return {hold.get()};
}
@@ -600,7 +614,7 @@ path __current_path(error_code* ec) {
void __current_path(const path& p, error_code* ec) {
ErrorHandler<void> err("current_path", ec, &p);
if (detail::chdir(p.c_str()) == -1)
- err.report(capture_errno());
+ err.report(detail::get_last_error());
}
bool __equivalent(const path& p1, const path& p2, error_code* ec) {
@@ -688,10 +702,10 @@ void __last_write_time(const path& p, file_time_type new_time, error_code* ec) {
return err.report(errc::value_too_large);
detail::WinHandle h(p.c_str(), FILE_WRITE_ATTRIBUTES, 0);
if (!h)
- return err.report(detail::make_windows_error(GetLastError()));
+ return err.report(detail::get_last_error());
FILETIME last_write = timespec_to_filetime(ts);
if (!SetFileTime(h, nullptr, nullptr, &last_write))
- return err.report(detail::make_windows_error(GetLastError()));
+ return err.report(detail::get_last_error());
#else
error_code m_ec;
array<TimeSpec, 2> tbuf;
@@ -749,7 +763,7 @@ void __permissions(const path& p, perms prms, perm_options opts, error_code* ec)
#if defined(AT_SYMLINK_NOFOLLOW) && defined(AT_FDCWD)
const int flags = set_sym_perms ? AT_SYMLINK_NOFOLLOW : 0;
if (detail::fchmodat(AT_FDCWD, p.c_str(), real_perms, flags) == -1) {
- return err.report(capture_errno());
+ return err.report(detail::get_last_error());
}
#else
if (set_sym_perms)
@@ -777,14 +791,14 @@ path __read_symlink(const path& p, error_code* ec) {
#else
StatT sb;
if (detail::lstat(p.c_str(), &sb) == -1) {
- return err.report(capture_errno());
+ return err.report(detail::get_last_error());
}
const size_t size = sb.st_size + 1;
auto buff = unique_ptr<path::value_type[]>(new path::value_type[size]);
#endif
detail::SSizeT ret;
if ((ret = detail::readlink(p.c_str(), buff.get(), size)) == -1)
- return err.report(capture_errno());
+ return err.report(detail::get_last_error());
// Note that `ret` returning `0` would work, resulting in a valid empty string being returned.
if (static_cast<size_t>(ret) >= size)
return err.report(errc::value_too_large);
@@ -795,8 +809,9 @@ path __read_symlink(const path& p, error_code* ec) {
bool __remove(const path& p, error_code* ec) {
ErrorHandler<bool> err("remove", ec, &p);
if (detail::remove(p.c_str()) == -1) {
- if (errno != ENOENT)
- err.report(capture_errno());
+ error_code mec = detail::get_last_error();
+ if (mec != errc::no_such_file_or_directory)
+ err.report(mec);
return false;
}
return true;
@@ -949,13 +964,13 @@ uintmax_t __remove_all(const path& p, error_code* ec) {
void __rename(const path& from, const path& to, error_code* ec) {
ErrorHandler<void> err("rename", ec, &from, &to);
if (detail::rename(from.c_str(), to.c_str()) == -1)
- err.report(capture_errno());
+ err.report(detail::get_last_error());
}
void __resize_file(const path& p, uintmax_t size, error_code* ec) {
ErrorHandler<void> err("resize_file", ec, &p);
if (detail::truncate(p.c_str(), static_cast< ::off_t>(size)) == -1)
- return err.report(capture_errno());
+ return err.report(detail::get_last_error());
}
space_info __space(const path& p, error_code* ec) {
@@ -963,7 +978,7 @@ space_info __space(const path& p, error_code* ec) {
space_info si;
detail::StatVFS m_svfs = {};
if (detail::statvfs(p.c_str(), &m_svfs) == -1) {
- err.report(capture_errno());
+ err.report(detail::get_last_error());
si.capacity = si.free = si.available = static_cast<uintmax_t>(-1);
return si;
}
@@ -990,7 +1005,7 @@ path __temp_directory_path(error_code* ec) {
wchar_t buf[MAX_PATH];
DWORD retval = GetTempPathW(MAX_PATH, buf);
if (!retval)
- return err.report(detail::make_windows_error(GetLastError()));
+ return err.report(detail::get_last_error());
if (retval > MAX_PATH)
return err.report(errc::filename_too_long);
// GetTempPathW returns a path with a trailing slash, which we
generated by cgit v1.1 at 2025-09-27 10:36:49 +0000