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621 lines
26 KiB
621 lines
26 KiB
5 years ago
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// boost/filesystem/directory.hpp ---------------------------------------------------//
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// Copyright Beman Dawes 2002-2009
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// Copyright Jan Langer 2002
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// Copyright Dietmar Kuehl 2001
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// Copyright Vladimir Prus 2002
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// Copyright Andrey Semashev 2019
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// Distributed under the Boost Software License, Version 1.0.
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// See http://www.boost.org/LICENSE_1_0.txt
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// Library home page: http://www.boost.org/libs/filesystem
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//--------------------------------------------------------------------------------------//
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#ifndef BOOST_FILESYSTEM3_DIRECTORY_HPP
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#define BOOST_FILESYSTEM3_DIRECTORY_HPP
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#include <boost/config.hpp>
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# if defined( BOOST_NO_STD_WSTRING )
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# error Configuration not supported: Boost.Filesystem V3 and later requires std::wstring support
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# endif
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#include <boost/filesystem/config.hpp>
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#include <boost/filesystem/path.hpp>
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#include <boost/filesystem/file_status.hpp>
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#include <string>
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#include <vector>
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#include <utility> // std::move
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#include <boost/assert.hpp>
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#include <boost/core/scoped_enum.hpp>
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#include <boost/detail/bitmask.hpp>
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#include <boost/system/error_code.hpp>
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#include <boost/smart_ptr/intrusive_ptr.hpp>
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#include <boost/smart_ptr/intrusive_ref_counter.hpp>
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#include <boost/iterator/iterator_facade.hpp>
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#include <boost/iterator/iterator_categories.hpp>
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#include <boost/config/abi_prefix.hpp> // must be the last #include
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//--------------------------------------------------------------------------------------//
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namespace boost {
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namespace filesystem {
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//--------------------------------------------------------------------------------------//
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// //
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// directory_entry //
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// //
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//--------------------------------------------------------------------------------------//
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// GCC has a problem with a member function named path within a namespace or
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// sub-namespace that also has a class named path. The workaround is to always
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// fully qualify the name path when it refers to the class name.
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class directory_entry
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{
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public:
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typedef boost::filesystem::path::value_type value_type; // enables class path ctor taking directory_entry
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directory_entry() BOOST_NOEXCEPT {}
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explicit directory_entry(const boost::filesystem::path& p) :
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m_path(p), m_status(file_status()), m_symlink_status(file_status())
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{
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}
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directory_entry(const boost::filesystem::path& p,
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file_status st, file_status symlink_st = file_status()) :
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m_path(p), m_status(st), m_symlink_status(symlink_st)
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{
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}
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directory_entry(const directory_entry& rhs) :
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m_path(rhs.m_path), m_status(rhs.m_status), m_symlink_status(rhs.m_symlink_status)
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{
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}
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directory_entry& operator=(const directory_entry& rhs)
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{
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m_path = rhs.m_path;
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m_status = rhs.m_status;
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m_symlink_status = rhs.m_symlink_status;
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return *this;
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}
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// As of October 2015 the interaction between noexcept and =default is so troublesome
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// for VC++, GCC, and probably other compilers, that =default is not used with noexcept
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// functions. GCC is not even consistent for the same release on different platforms.
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#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
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directory_entry(directory_entry&& rhs) BOOST_NOEXCEPT :
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m_path(std::move(rhs.m_path)), m_status(std::move(rhs.m_status)), m_symlink_status(std::move(rhs.m_symlink_status))
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{
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}
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directory_entry& operator=(directory_entry&& rhs) BOOST_NOEXCEPT
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{
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m_path = std::move(rhs.m_path);
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m_status = std::move(rhs.m_status);
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m_symlink_status = std::move(rhs.m_symlink_status);
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return *this;
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}
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#endif
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void assign(const boost::filesystem::path& p,
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file_status st = file_status(), file_status symlink_st = file_status())
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{
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m_path = p;
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m_status = st;
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m_symlink_status = symlink_st;
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}
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void replace_filename(const boost::filesystem::path& p,
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file_status st = file_status(), file_status symlink_st = file_status())
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{
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m_path.remove_filename();
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m_path /= p;
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m_status = st;
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m_symlink_status = symlink_st;
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}
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# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
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void replace_leaf(const boost::filesystem::path& p, file_status st, file_status symlink_st)
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{
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replace_filename(p, st, symlink_st);
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}
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# endif
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const boost::filesystem::path& path() const BOOST_NOEXCEPT { return m_path; }
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operator const boost::filesystem::path&() const BOOST_NOEXCEPT { return m_path; }
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file_status status() const { return get_status(); }
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file_status status(system::error_code& ec) const BOOST_NOEXCEPT { return get_status(&ec); }
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file_status symlink_status() const { return get_symlink_status(); }
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file_status symlink_status(system::error_code& ec) const BOOST_NOEXCEPT { return get_symlink_status(&ec); }
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bool operator==(const directory_entry& rhs) const BOOST_NOEXCEPT { return m_path == rhs.m_path; }
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bool operator!=(const directory_entry& rhs) const BOOST_NOEXCEPT { return m_path != rhs.m_path; }
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bool operator< (const directory_entry& rhs) const BOOST_NOEXCEPT { return m_path < rhs.m_path; }
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bool operator<=(const directory_entry& rhs) const BOOST_NOEXCEPT { return m_path <= rhs.m_path; }
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bool operator> (const directory_entry& rhs) const BOOST_NOEXCEPT { return m_path > rhs.m_path; }
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bool operator>=(const directory_entry& rhs) const BOOST_NOEXCEPT { return m_path >= rhs.m_path; }
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private:
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BOOST_FILESYSTEM_DECL file_status get_status(system::error_code* ec=0) const;
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BOOST_FILESYSTEM_DECL file_status get_symlink_status(system::error_code* ec=0) const;
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private:
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boost::filesystem::path m_path;
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mutable file_status m_status; // stat()-like
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mutable file_status m_symlink_status; // lstat()-like
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}; // directory_entry
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//--------------------------------------------------------------------------------------//
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// //
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// directory_entry overloads //
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// //
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//--------------------------------------------------------------------------------------//
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// Without these functions, calling (for example) 'is_directory' with a 'directory_entry' results in:
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// - a conversion to 'path' using 'operator const boost::filesystem::path&()',
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// - then a call to 'is_directory(const path& p)' which recomputes the status with 'detail::status(p)'.
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//
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// These functions avoid a costly recomputation of the status if one calls 'is_directory(e)' instead of 'is_directory(e.status)'
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inline file_status status (const directory_entry& e) BOOST_NOEXCEPT { return e.status(); }
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inline bool type_present (const directory_entry& e) BOOST_NOEXCEPT { return filesystem::type_present(e.status()); }
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inline bool status_known (const directory_entry& e) BOOST_NOEXCEPT { return filesystem::status_known(e.status()); }
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inline bool exists (const directory_entry& e) BOOST_NOEXCEPT { return filesystem::exists(e.status()); }
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inline bool is_regular_file(const directory_entry& e) BOOST_NOEXCEPT { return filesystem::is_regular_file(e.status()); }
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inline bool is_directory (const directory_entry& e) BOOST_NOEXCEPT { return filesystem::is_directory(e.status()); }
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inline bool is_symlink (const directory_entry& e) BOOST_NOEXCEPT { return filesystem::is_symlink(e.status()); }
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inline bool is_other (const directory_entry& e) BOOST_NOEXCEPT { return filesystem::is_other(e.status()); }
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#ifndef BOOST_FILESYSTEM_NO_DEPRECATED
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inline bool is_regular (const directory_entry& e) BOOST_NOEXCEPT { return filesystem::is_regular(e.status()); }
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#endif
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//--------------------------------------------------------------------------------------//
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// //
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// directory_iterator helpers //
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// //
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//--------------------------------------------------------------------------------------//
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BOOST_SCOPED_ENUM_UT_DECLARE_BEGIN(directory_options, unsigned int)
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{
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none = 0u,
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skip_permission_denied = 1u, // if a directory cannot be opened because of insufficient permissions, pretend that the directory is empty
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follow_directory_symlink = 1u << 1, // recursive_directory_iterator: follow directory symlinks
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skip_dangling_symlinks = 1u << 2, // non-standard extension for recursive_directory_iterator: don't follow dangling directory symlinks,
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pop_on_error = 1u << 3, // non-standard extension for recursive_directory_iterator: instead of producing an end iterator on errors,
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// repeatedly invoke pop() until it succeeds or the iterator becomes equal to end iterator
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_detail_no_push = 1u << 4 // internal use only
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}
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BOOST_SCOPED_ENUM_DECLARE_END(directory_options)
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BOOST_BITMASK(BOOST_SCOPED_ENUM_NATIVE(directory_options))
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class directory_iterator;
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namespace detail {
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BOOST_FILESYSTEM_DECL
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system::error_code dir_itr_close(// never throws()
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void*& handle
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#if defined(BOOST_POSIX_API)
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, void*& buffer
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#endif
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) BOOST_NOEXCEPT;
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struct dir_itr_imp :
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public boost::intrusive_ref_counter< dir_itr_imp >
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{
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directory_entry dir_entry;
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void* handle;
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#if defined(BOOST_POSIX_API)
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void* buffer; // see dir_itr_increment implementation
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#endif
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dir_itr_imp() BOOST_NOEXCEPT :
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handle(0)
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#if defined(BOOST_POSIX_API)
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, buffer(0)
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#endif
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{
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}
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~dir_itr_imp() BOOST_NOEXCEPT
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{
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dir_itr_close(handle
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#if defined(BOOST_POSIX_API)
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, buffer
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#endif
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);
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}
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};
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// see path::iterator: comment below
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BOOST_FILESYSTEM_DECL void directory_iterator_construct(directory_iterator& it, const path& p, unsigned int opts, system::error_code* ec);
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BOOST_FILESYSTEM_DECL void directory_iterator_increment(directory_iterator& it, system::error_code* ec);
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} // namespace detail
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//--------------------------------------------------------------------------------------//
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// //
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// directory_iterator //
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// //
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//--------------------------------------------------------------------------------------//
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class directory_iterator :
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public boost::iterator_facade<
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directory_iterator,
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directory_entry,
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boost::single_pass_traversal_tag
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>
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{
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friend class boost::iterator_core_access;
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friend BOOST_FILESYSTEM_DECL void detail::directory_iterator_construct(directory_iterator& it, const path& p, unsigned int opts, system::error_code* ec);
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friend BOOST_FILESYSTEM_DECL void detail::directory_iterator_increment(directory_iterator& it, system::error_code* ec);
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public:
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directory_iterator() BOOST_NOEXCEPT {} // creates the "end" iterator
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// iterator_facade derived classes don't seem to like implementations in
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// separate translation unit dll's, so forward to detail functions
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explicit directory_iterator(const path& p, BOOST_SCOPED_ENUM_NATIVE(directory_options) opts = directory_options::none)
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{
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detail::directory_iterator_construct(*this, p, static_cast< unsigned int >(opts), 0);
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}
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directory_iterator(const path& p, system::error_code& ec) BOOST_NOEXCEPT
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{
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detail::directory_iterator_construct(*this, p, static_cast< unsigned int >(directory_options::none), &ec);
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}
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directory_iterator(const path& p, BOOST_SCOPED_ENUM_NATIVE(directory_options) opts, system::error_code& ec) BOOST_NOEXCEPT
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{
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detail::directory_iterator_construct(*this, p, static_cast< unsigned int >(opts), &ec);
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}
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BOOST_DEFAULTED_FUNCTION(directory_iterator(directory_iterator const& that), : m_imp(that.m_imp) {})
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BOOST_DEFAULTED_FUNCTION(directory_iterator& operator= (directory_iterator const& that), { m_imp = that.m_imp; return *this; })
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#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
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directory_iterator(directory_iterator&& that) BOOST_NOEXCEPT :
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m_imp(std::move(that.m_imp))
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{
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}
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directory_iterator& operator= (directory_iterator&& that) BOOST_NOEXCEPT
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{
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m_imp = std::move(that.m_imp);
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return *this;
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}
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#endif // !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
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directory_iterator& increment(system::error_code& ec) BOOST_NOEXCEPT
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{
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detail::directory_iterator_increment(*this, &ec);
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return *this;
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}
|
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||
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private:
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boost::iterator_facade<
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directory_iterator,
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||
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directory_entry,
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boost::single_pass_traversal_tag
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>::reference dereference() const
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{
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BOOST_ASSERT_MSG(!is_end(), "attempt to dereference end directory iterator");
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return m_imp->dir_entry;
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}
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void increment() { detail::directory_iterator_increment(*this, 0); }
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bool equal(const directory_iterator& rhs) const BOOST_NOEXCEPT
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{
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return m_imp == rhs.m_imp || (is_end() && rhs.is_end());
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}
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||
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bool is_end() const BOOST_NOEXCEPT
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{
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// Note: The check for handle is needed because the iterator can be copied and the copy
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// can be incremented to end while the original iterator still refers to the same dir_itr_imp.
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return !m_imp || !m_imp->handle;
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}
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private:
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// intrusive_ptr provides the shallow-copy semantics required for single pass iterators
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||
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// (i.e. InputIterators). The end iterator is indicated by is_end().
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boost::intrusive_ptr< detail::dir_itr_imp > m_imp;
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};
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||
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// enable directory_iterator C++11 range-based for statement use --------------------//
|
||
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||
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// begin() and end() are only used by a range-based for statement in the context of
|
||
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// auto - thus the top-level const is stripped - so returning const is harmless and
|
||
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// emphasizes begin() is just a pass through.
|
||
|
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inline const directory_iterator& begin(const directory_iterator& iter) BOOST_NOEXCEPT { return iter; }
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||
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inline directory_iterator end(const directory_iterator&) BOOST_NOEXCEPT { return directory_iterator(); }
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||
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// enable C++14 generic accessors for range const iterators
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||
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inline const directory_iterator& cbegin(const directory_iterator& iter) BOOST_NOEXCEPT { return iter; }
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||
|
|
inline directory_iterator cend(const directory_iterator&) BOOST_NOEXCEPT { return directory_iterator(); }
|
||
|
|
|
||
|
|
// enable directory_iterator BOOST_FOREACH -----------------------------------------//
|
||
|
|
|
||
|
|
inline directory_iterator& range_begin(directory_iterator& iter) BOOST_NOEXCEPT { return iter; }
|
||
|
|
inline directory_iterator range_begin(const directory_iterator& iter) BOOST_NOEXCEPT { return iter; }
|
||
|
|
inline directory_iterator range_end(directory_iterator&) BOOST_NOEXCEPT { return directory_iterator(); }
|
||
|
|
inline directory_iterator range_end(const directory_iterator&) BOOST_NOEXCEPT { return directory_iterator(); }
|
||
|
|
|
||
|
|
} // namespace filesystem
|
||
|
|
|
||
|
|
// namespace boost template specializations
|
||
|
|
template<typename C, typename Enabler>
|
||
|
|
struct range_mutable_iterator;
|
||
|
|
|
||
|
|
template<>
|
||
|
|
struct range_mutable_iterator<boost::filesystem::directory_iterator, void>
|
||
|
|
{
|
||
|
|
typedef boost::filesystem::directory_iterator type;
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename C, typename Enabler>
|
||
|
|
struct range_const_iterator;
|
||
|
|
|
||
|
|
template<>
|
||
|
|
struct range_const_iterator<boost::filesystem::directory_iterator, void>
|
||
|
|
{
|
||
|
|
typedef boost::filesystem::directory_iterator type;
|
||
|
|
};
|
||
|
|
|
||
|
|
namespace filesystem {
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------------------------//
|
||
|
|
// //
|
||
|
|
// recursive_directory_iterator helpers //
|
||
|
|
// //
|
||
|
|
//--------------------------------------------------------------------------------------//
|
||
|
|
|
||
|
|
#if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
|
||
|
|
// Deprecated enum, use directory_options instead
|
||
|
|
BOOST_SCOPED_ENUM_UT_DECLARE_BEGIN(symlink_option, unsigned int)
|
||
|
|
{
|
||
|
|
none = static_cast< unsigned int >(directory_options::none),
|
||
|
|
no_recurse = none, // don't follow directory symlinks (default behavior)
|
||
|
|
recurse = static_cast< unsigned int >(directory_options::follow_directory_symlink), // follow directory symlinks
|
||
|
|
_detail_no_push = static_cast< unsigned int >(directory_options::_detail_no_push) // internal use only
|
||
|
|
}
|
||
|
|
BOOST_SCOPED_ENUM_DECLARE_END(symlink_option)
|
||
|
|
|
||
|
|
BOOST_BITMASK(BOOST_SCOPED_ENUM_NATIVE(symlink_option))
|
||
|
|
#endif // BOOST_FILESYSTEM_NO_DEPRECATED
|
||
|
|
|
||
|
|
class recursive_directory_iterator;
|
||
|
|
|
||
|
|
namespace detail {
|
||
|
|
|
||
|
|
struct recur_dir_itr_imp :
|
||
|
|
public boost::intrusive_ref_counter< recur_dir_itr_imp >
|
||
|
|
{
|
||
|
|
typedef directory_iterator element_type;
|
||
|
|
std::vector< element_type > m_stack;
|
||
|
|
// directory_options values, declared as unsigned int for ABI compatibility
|
||
|
|
unsigned int m_options;
|
||
|
|
|
||
|
|
explicit recur_dir_itr_imp(unsigned int opts) BOOST_NOEXCEPT : m_options(opts) {}
|
||
|
|
};
|
||
|
|
|
||
|
|
BOOST_FILESYSTEM_DECL void recursive_directory_iterator_construct(recursive_directory_iterator& it, const path& dir_path, unsigned int opts, system::error_code* ec);
|
||
|
|
BOOST_FILESYSTEM_DECL void recursive_directory_iterator_increment(recursive_directory_iterator& it, system::error_code* ec);
|
||
|
|
BOOST_FILESYSTEM_DECL void recursive_directory_iterator_pop(recursive_directory_iterator& it, system::error_code* ec);
|
||
|
|
|
||
|
|
} // namespace detail
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------------------------//
|
||
|
|
// //
|
||
|
|
// recursive_directory_iterator //
|
||
|
|
// //
|
||
|
|
//--------------------------------------------------------------------------------------//
|
||
|
|
|
||
|
|
class recursive_directory_iterator :
|
||
|
|
public boost::iterator_facade<
|
||
|
|
recursive_directory_iterator,
|
||
|
|
directory_entry,
|
||
|
|
boost::single_pass_traversal_tag
|
||
|
|
>
|
||
|
|
{
|
||
|
|
friend class boost::iterator_core_access;
|
||
|
|
|
||
|
|
friend BOOST_FILESYSTEM_DECL void detail::recursive_directory_iterator_construct(recursive_directory_iterator& it, const path& dir_path, unsigned int opts, system::error_code* ec);
|
||
|
|
friend BOOST_FILESYSTEM_DECL void detail::recursive_directory_iterator_increment(recursive_directory_iterator& it, system::error_code* ec);
|
||
|
|
friend BOOST_FILESYSTEM_DECL void detail::recursive_directory_iterator_pop(recursive_directory_iterator& it, system::error_code* ec);
|
||
|
|
|
||
|
|
public:
|
||
|
|
recursive_directory_iterator() BOOST_NOEXCEPT {} // creates the "end" iterator
|
||
|
|
|
||
|
|
explicit recursive_directory_iterator(const path& dir_path)
|
||
|
|
{
|
||
|
|
detail::recursive_directory_iterator_construct(*this, dir_path, static_cast< unsigned int >(directory_options::none), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
recursive_directory_iterator(const path& dir_path, system::error_code& ec)
|
||
|
|
{
|
||
|
|
detail::recursive_directory_iterator_construct(*this, dir_path, static_cast< unsigned int >(directory_options::none), &ec);
|
||
|
|
}
|
||
|
|
|
||
|
|
recursive_directory_iterator(const path& dir_path, BOOST_SCOPED_ENUM_NATIVE(directory_options) opts)
|
||
|
|
{
|
||
|
|
detail::recursive_directory_iterator_construct(*this, dir_path, static_cast< unsigned int >(opts), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
recursive_directory_iterator(const path& dir_path, BOOST_SCOPED_ENUM_NATIVE(directory_options) opts, system::error_code& ec)
|
||
|
|
{
|
||
|
|
detail::recursive_directory_iterator_construct(*this, dir_path, static_cast< unsigned int >(opts), &ec);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
|
||
|
|
// Deprecated constructors
|
||
|
|
recursive_directory_iterator(const path& dir_path, BOOST_SCOPED_ENUM_NATIVE(symlink_option) opts)
|
||
|
|
{
|
||
|
|
detail::recursive_directory_iterator_construct(*this, dir_path, static_cast< unsigned int >(opts), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
recursive_directory_iterator(const path& dir_path, BOOST_SCOPED_ENUM_NATIVE(symlink_option) opts, system::error_code& ec) BOOST_NOEXCEPT
|
||
|
|
{
|
||
|
|
detail::recursive_directory_iterator_construct(*this, dir_path, static_cast< unsigned int >(opts), &ec);
|
||
|
|
}
|
||
|
|
#endif // BOOST_FILESYSTEM_NO_DEPRECATED
|
||
|
|
|
||
|
|
BOOST_DEFAULTED_FUNCTION(recursive_directory_iterator(recursive_directory_iterator const& that), : m_imp(that.m_imp) {})
|
||
|
|
BOOST_DEFAULTED_FUNCTION(recursive_directory_iterator& operator= (recursive_directory_iterator const& that), { m_imp = that.m_imp; return *this; })
|
||
|
|
|
||
|
|
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||
|
|
recursive_directory_iterator(recursive_directory_iterator&& that) BOOST_NOEXCEPT :
|
||
|
|
m_imp(std::move(that.m_imp))
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
recursive_directory_iterator& operator= (recursive_directory_iterator&& that) BOOST_NOEXCEPT
|
||
|
|
{
|
||
|
|
m_imp = std::move(that.m_imp);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
#endif // !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||
|
|
|
||
|
|
recursive_directory_iterator& increment(system::error_code& ec) BOOST_NOEXCEPT
|
||
|
|
{
|
||
|
|
detail::recursive_directory_iterator_increment(*this, &ec);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
int depth() const BOOST_NOEXCEPT
|
||
|
|
{
|
||
|
|
BOOST_ASSERT_MSG(!is_end(), "depth() on end recursive_directory_iterator");
|
||
|
|
return static_cast< int >(m_imp->m_stack.size() - 1u);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool recursion_pending() const BOOST_NOEXCEPT
|
||
|
|
{
|
||
|
|
BOOST_ASSERT_MSG(!is_end(), "recursion_pending() on end recursive_directory_iterator");
|
||
|
|
return (m_imp->m_options & static_cast< unsigned int >(directory_options::_detail_no_push)) == 0u;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef BOOST_FILESYSTEM_NO_DEPRECATED
|
||
|
|
int level() const BOOST_NOEXCEPT { return depth(); }
|
||
|
|
bool no_push_pending() const BOOST_NOEXCEPT { return !recursion_pending(); }
|
||
|
|
bool no_push_request() const BOOST_NOEXCEPT { return !recursion_pending(); }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void pop()
|
||
|
|
{
|
||
|
|
detail::recursive_directory_iterator_pop(*this, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
void pop(system::error_code& ec) BOOST_NOEXCEPT
|
||
|
|
{
|
||
|
|
detail::recursive_directory_iterator_pop(*this, &ec);
|
||
|
|
}
|
||
|
|
|
||
|
|
void disable_recursion_pending(bool value = true) BOOST_NOEXCEPT
|
||
|
|
{
|
||
|
|
BOOST_ASSERT_MSG(!is_end(), "disable_recursion_pending() on end recursive_directory_iterator");
|
||
|
|
if (value)
|
||
|
|
m_imp->m_options |= static_cast< unsigned int >(directory_options::_detail_no_push);
|
||
|
|
else
|
||
|
|
m_imp->m_options &= ~static_cast< unsigned int >(directory_options::_detail_no_push);
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef BOOST_FILESYSTEM_NO_DEPRECATED
|
||
|
|
void no_push(bool value = true) BOOST_NOEXCEPT { disable_recursion_pending(value); }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
file_status status() const
|
||
|
|
{
|
||
|
|
BOOST_ASSERT_MSG(!is_end(), "status() on end recursive_directory_iterator");
|
||
|
|
return m_imp->m_stack.back()->status();
|
||
|
|
}
|
||
|
|
|
||
|
|
file_status symlink_status() const
|
||
|
|
{
|
||
|
|
BOOST_ASSERT_MSG(!is_end(), "symlink_status() on end recursive_directory_iterator");
|
||
|
|
return m_imp->m_stack.back()->symlink_status();
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
boost::iterator_facade<
|
||
|
|
recursive_directory_iterator,
|
||
|
|
directory_entry,
|
||
|
|
boost::single_pass_traversal_tag
|
||
|
|
>::reference dereference() const
|
||
|
|
{
|
||
|
|
BOOST_ASSERT_MSG(!is_end(), "dereference of end recursive_directory_iterator");
|
||
|
|
return *m_imp->m_stack.back();
|
||
|
|
}
|
||
|
|
|
||
|
|
void increment() { detail::recursive_directory_iterator_increment(*this, 0); }
|
||
|
|
|
||
|
|
bool equal(const recursive_directory_iterator& rhs) const BOOST_NOEXCEPT
|
||
|
|
{
|
||
|
|
return m_imp == rhs.m_imp || (is_end() && rhs.is_end());
|
||
|
|
}
|
||
|
|
|
||
|
|
bool is_end() const BOOST_NOEXCEPT
|
||
|
|
{
|
||
|
|
// Note: The check for m_stack.empty() is needed because the iterator can be copied and the copy
|
||
|
|
// can be incremented to end while the original iterator still refers to the same recur_dir_itr_imp.
|
||
|
|
return !m_imp || m_imp->m_stack.empty();
|
||
|
|
}
|
||
|
|
|
||
|
|
private:
|
||
|
|
// intrusive_ptr provides the shallow-copy semantics required for single pass iterators
|
||
|
|
// (i.e. InputIterators). The end iterator is indicated by is_end().
|
||
|
|
boost::intrusive_ptr< detail::recur_dir_itr_imp > m_imp;
|
||
|
|
};
|
||
|
|
|
||
|
|
#if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
|
||
|
|
typedef recursive_directory_iterator wrecursive_directory_iterator;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// enable recursive directory iterator C++11 range-base for statement use ----------//
|
||
|
|
|
||
|
|
// begin() and end() are only used by a range-based for statement in the context of
|
||
|
|
// auto - thus the top-level const is stripped - so returning const is harmless and
|
||
|
|
// emphasizes begin() is just a pass through.
|
||
|
|
inline const recursive_directory_iterator& begin(const recursive_directory_iterator& iter) BOOST_NOEXCEPT { return iter; }
|
||
|
|
inline recursive_directory_iterator end(const recursive_directory_iterator&) BOOST_NOEXCEPT { return recursive_directory_iterator(); }
|
||
|
|
|
||
|
|
// enable C++14 generic accessors for range const iterators
|
||
|
|
inline const recursive_directory_iterator& cbegin(const recursive_directory_iterator& iter) BOOST_NOEXCEPT { return iter; }
|
||
|
|
inline recursive_directory_iterator cend(const recursive_directory_iterator&) BOOST_NOEXCEPT { return recursive_directory_iterator(); }
|
||
|
|
|
||
|
|
// enable recursive directory iterator BOOST_FOREACH -------------------------------//
|
||
|
|
|
||
|
|
inline recursive_directory_iterator& range_begin(recursive_directory_iterator& iter) BOOST_NOEXCEPT { return iter; }
|
||
|
|
inline recursive_directory_iterator range_begin(const recursive_directory_iterator& iter) BOOST_NOEXCEPT { return iter; }
|
||
|
|
inline recursive_directory_iterator range_end(recursive_directory_iterator&) BOOST_NOEXCEPT { return recursive_directory_iterator(); }
|
||
|
|
inline recursive_directory_iterator range_end(const recursive_directory_iterator&) BOOST_NOEXCEPT { return recursive_directory_iterator(); }
|
||
|
|
|
||
|
|
} // namespace filesystem
|
||
|
|
|
||
|
|
// namespace boost template specializations
|
||
|
|
template<>
|
||
|
|
struct range_mutable_iterator<boost::filesystem::recursive_directory_iterator, void>
|
||
|
|
{
|
||
|
|
typedef boost::filesystem::recursive_directory_iterator type;
|
||
|
|
};
|
||
|
|
template<>
|
||
|
|
struct range_const_iterator<boost::filesystem::recursive_directory_iterator, void>
|
||
|
|
{
|
||
|
|
typedef boost::filesystem::recursive_directory_iterator type;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
|
||
|
|
#endif // BOOST_FILESYSTEM3_DIRECTORY_HPP
|