// Filesystem directory utilities -*- C++ -*-
// Copyright (C) 2014-2017 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file experimental/bits/fs_dir.h
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly. @headername{experimental/filesystem}
*/
#ifndef _GLIBCXX_EXPERIMENTAL_FS_DIR_H
#define _GLIBCXX_EXPERIMENTAL_FS_DIR_H 1
#if __cplusplus < 201103L
# include <bits/c++0x_warning.h>
#else
# include <typeinfo>
# include <ext/concurrence.h>
# include <bits/unique_ptr.h>
# include <bits/shared_ptr.h>
namespace std _GLIBCXX_VISIBILITY(default)
{
namespace experimental
{
namespace filesystem
{
inline namespace v1
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
/**
* @ingroup filesystem
* @{
*/
class file_status
{
public:
// constructors
explicit
file_status(file_type __ft = file_type::none,
perms __prms = perms::unknown) noexcept
: _M_type(__ft), _M_perms(__prms) { }
file_status(const file_status&) noexcept = default;
file_status(file_status&&) noexcept = default;
~file_status() = default;
file_status& operator=(const file_status&) noexcept = default;
file_status& operator=(file_status&&) noexcept = default;
// observers
file_type type() const noexcept { return _M_type; }
perms permissions() const noexcept { return _M_perms; }
// modifiers
void type(file_type __ft) noexcept { _M_type = __ft; }
void permissions(perms __prms) noexcept { _M_perms = __prms; }
private:
file_type _M_type;
perms _M_perms;
};
_GLIBCXX_BEGIN_NAMESPACE_CXX11
class directory_entry
{
public:
// constructors and destructor
directory_entry() noexcept = default;
directory_entry(const directory_entry&) = default;
directory_entry(directory_entry&&) noexcept = default;
explicit directory_entry(const filesystem::path& __p) : _M_path(__p) { }
~directory_entry() = default;
// modifiers
directory_entry& operator=(const directory_entry&) = default;
directory_entry& operator=(directory_entry&&) noexcept = default;
void assign(const filesystem::path& __p) { _M_path = __p; }
void
replace_filename(const filesystem::path& __p)
{ _M_path = _M_path.parent_path() / __p; }
// observers
const filesystem::path& path() const noexcept { return _M_path; }
operator const filesystem::path&() const noexcept { return _M_path; }
file_status
status() const
{ return filesystem::status(_M_path); }
file_status
status(error_code& __ec) const noexcept
{ return filesystem::status(_M_path, __ec); }
file_status
symlink_status() const
{ return filesystem::symlink_status(_M_path); }
file_status
symlink_status(error_code& __ec) const noexcept
{ return filesystem::symlink_status(_M_path, __ec); }
bool
operator< (const directory_entry& __rhs) const noexcept
{ return _M_path < __rhs._M_path; }
bool
operator==(const directory_entry& __rhs) const noexcept
{ return _M_path == __rhs._M_path; }
bool
operator!=(const directory_entry& __rhs) const noexcept
{ return _M_path != __rhs._M_path; }
bool
operator<=(const directory_entry& __rhs) const noexcept
{ return _M_path <= __rhs._M_path; }
bool
operator> (const directory_entry& __rhs) const noexcept
{ return _M_path > __rhs._M_path; }
bool
operator>=(const directory_entry& __rhs) const noexcept
{ return _M_path >= __rhs._M_path; }
private:
filesystem::path _M_path;
};
struct _Dir;
class directory_iterator;
class recursive_directory_iterator;
struct __directory_iterator_proxy
{
const directory_entry& operator*() const& noexcept { return _M_entry; }
directory_entry operator*() && noexcept { return std::move(_M_entry); }
private:
friend class directory_iterator;
friend class recursive_directory_iterator;
explicit
__directory_iterator_proxy(const directory_entry& __e) : _M_entry(__e) { }
directory_entry _M_entry;
};
class directory_iterator
{
public:
typedef directory_entry value_type;
typedef ptrdiff_t difference_type;
typedef const directory_entry* pointer;
typedef const directory_entry& reference;
typedef input_iterator_tag iterator_category;
directory_iterator() = default;
explicit
directory_iterator(const path& __p)
: directory_iterator(__p, directory_options::none, nullptr) { }
directory_iterator(const path& __p, directory_options __options)
: directory_iterator(__p, __options, nullptr) { }
directory_iterator(const path& __p, error_code& __ec) noexcept
: directory_iterator(__p, directory_options::none, __ec) { }
directory_iterator(const path& __p,
directory_options __options,
error_code& __ec) noexcept
: directory_iterator(__p, __options, &__ec) { }
directory_iterator(const directory_iterator& __rhs) = default;
directory_iterator(directory_iterator&& __rhs) noexcept = default;
~directory_iterator() = default;
directory_iterator&
operator=(const directory_iterator& __rhs) = default;
directory_iterator&
operator=(directory_iterator&& __rhs) noexcept = default;
const directory_entry& operator*() const;
const directory_entry* operator->() const { return &**this; }
directory_iterator& operator++();
directory_iterator& increment(error_code& __ec) noexcept;
__directory_iterator_proxy operator++(int)
{
__directory_iterator_proxy __pr{**this};
++*this;
return __pr;
}
private:
directory_iterator(const path&, directory_options, error_code*);
friend bool
operator==(const directory_iterator& __lhs,
const directory_iterator& __rhs);
friend class recursive_directory_iterator;
std::shared_ptr<_Dir> _M_dir;
};
inline directory_iterator
begin(directory_iterator __iter) noexcept
{ return __iter; }
inline directory_iterator
end(directory_iterator) noexcept
{ return directory_iterator(); }
inline bool
operator==(const directory_iterator& __lhs, const directory_iterator& __rhs)
{
return !__rhs._M_dir.owner_before(__lhs._M_dir)
&& !__lhs._M_dir.owner_before(__rhs._M_dir);
}
inline bool
operator!=(const directory_iterator& __lhs, const directory_iterator& __rhs)
{ return !(__lhs == __rhs); }
class recursive_directory_iterator
{
public:
typedef directory_entry value_type;
typedef ptrdiff_t difference_type;
typedef const directory_entry* pointer;
typedef const directory_entry& reference;
typedef input_iterator_tag iterator_category;
recursive_directory_iterator() = default;
explicit
recursive_directory_iterator(const path& __p)
: recursive_directory_iterator(__p, directory_options::none, nullptr) { }
recursive_directory_iterator(const path& __p, directory_options __options)
: recursive_directory_iterator(__p, __options, nullptr) { }
recursive_directory_iterator(const path& __p,
directory_options __options,
error_code& __ec) noexcept
: recursive_directory_iterator(__p, __options, &__ec) { }
recursive_directory_iterator(const path& __p, error_code& __ec) noexcept
: recursive_directory_iterator(__p, directory_options::none, &__ec) { }
recursive_directory_iterator(
const recursive_directory_iterator&) = default;
recursive_directory_iterator(recursive_directory_iterator&&) = default;
~recursive_directory_iterator();
// observers
directory_options options() const { return _M_options; }
int depth() const;
bool recursion_pending() const { return _M_pending; }
const directory_entry& operator*() const;
const directory_entry* operator->() const { return &**this; }
// modifiers
recursive_directory_iterator&
operator=(const recursive_directory_iterator& __rhs) noexcept;
recursive_directory_iterator&
operator=(recursive_directory_iterator&& __rhs) noexcept;
recursive_directory_iterator& operator++();
recursive_directory_iterator& increment(error_code& __ec) noexcept;
__directory_iterator_proxy operator++(int)
{
__directory_iterator_proxy __pr{**this};
++*this;
return __pr;
}
void pop();
void pop(error_code&);
void disable_recursion_pending() { _M_pending = false; }
private:
recursive_directory_iterator(const path&, directory_options, error_code*);
friend bool
operator==(const recursive_directory_iterator& __lhs,
const recursive_directory_iterator& __rhs);
struct _Dir_stack;
std::shared_ptr<_Dir_stack> _M_dirs;
directory_options _M_options = {};
bool _M_pending = false;
};
inline recursive_directory_iterator
begin(recursive_directory_iterator __iter) noexcept
{ return __iter; }
inline recursive_directory_iterator
end(recursive_directory_iterator) noexcept
{ return recursive_directory_iterator(); }
inline bool
operator==(const recursive_directory_iterator& __lhs,
const recursive_directory_iterator& __rhs)
{
return !__rhs._M_dirs.owner_before(__lhs._M_dirs)
&& !__lhs._M_dirs.owner_before(__rhs._M_dirs);
}
inline bool
operator!=(const recursive_directory_iterator& __lhs,
const recursive_directory_iterator& __rhs)
{ return !(__lhs == __rhs); }
_GLIBCXX_END_NAMESPACE_CXX11
// @} group filesystem
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace v1
} // namespace filesystem
} // namespace experimental
} // namespace std
#endif // C++11
#endif // _GLIBCXX_EXPERIMENTAL_FS_DIR_H