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Diffstat (limited to '3rdParty/Boost/src/boost/filesystem/operations.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/filesystem/operations.hpp | 1173 |
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diff --git a/3rdParty/Boost/src/boost/filesystem/operations.hpp b/3rdParty/Boost/src/boost/filesystem/operations.hpp new file mode 100644 index 0000000..5c2080c --- /dev/null +++ b/3rdParty/Boost/src/boost/filesystem/operations.hpp @@ -0,0 +1,1173 @@ +// boost/filesystem/operations.hpp -----------------------------------------// + +// Copyright 2002-2005 Beman Dawes +// Copyright 2002 Jan Langer +// Copyright 2001 Dietmar Kuehl +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +// See library home page at http://www.boost.org/libs/filesystem + +//----------------------------------------------------------------------------// + +#ifndef BOOST_FILESYSTEM_OPERATIONS_HPP +#define BOOST_FILESYSTEM_OPERATIONS_HPP + +#include <boost/filesystem/path.hpp> + +#include <boost/shared_ptr.hpp> +#include <boost/utility/enable_if.hpp> +#include <boost/type_traits/is_same.hpp> +#include <boost/iterator.hpp> +#include <boost/cstdint.hpp> +#include <boost/assert.hpp> + +#include <string> +#include <utility> // for pair +#include <ctime> + +#ifdef BOOST_WINDOWS_API +# include <fstream> +# if !defined(_WIN32_WINNT) || _WIN32_WINNT >= 0x0500 +# define BOOST_FS_HARD_LINK // Default for Windows 2K or later +# endif +#endif + +#include <boost/config/abi_prefix.hpp> // must be the last #include + +# ifdef BOOST_NO_STDC_NAMESPACE + namespace std { using ::time_t; } +# endif + +//----------------------------------------------------------------------------// + +namespace boost +{ + namespace filesystem + { + +// typedef boost::filesystem::path Path; needs to be in namespace boost::filesystem +# ifndef BOOST_FILESYSTEM_NARROW_ONLY +# define BOOST_FS_FUNC(BOOST_FS_TYPE) \ + template<class Path> typename boost::enable_if<is_basic_path<Path>, \ + BOOST_FS_TYPE>::type +# define BOOST_INLINE_FS_FUNC(BOOST_FS_TYPE) \ + template<class Path> inline typename boost::enable_if<is_basic_path<Path>, \ + BOOST_FS_TYPE>::type +# define BOOST_FS_TYPENAME typename +# else +# define BOOST_FS_FUNC(BOOST_FS_TYPE) inline BOOST_FS_TYPE +# define BOOST_INLINE_FS_FUNC(BOOST_FS_TYPE) inline BOOST_FS_TYPE + typedef boost::filesystem::path Path; +# define BOOST_FS_TYPENAME +# endif + + template<class Path> class basic_directory_iterator; + + // BOOST_FILESYSTEM_NARROW_ONLY needs this: + typedef basic_directory_iterator<path> directory_iterator; + + template<class Path> class basic_directory_entry; + + enum file_type + { + status_unknown, + file_not_found, + regular_file, + directory_file, + // the following will never be reported by some operating or file systems + symlink_file, + block_file, + character_file, + fifo_file, + socket_file, + type_unknown // file does exist, but isn't one of the above types or + // we don't have strong enough permission to find its type + }; + + class file_status + { + public: + explicit file_status( file_type v = status_unknown ) : m_value(v) {} + + void type( file_type v ) { m_value = v; } + file_type type() const { return m_value; } + + private: + // the internal representation is unspecified so that additional state + // information such as permissions can be added in the future; this + // implementation just uses status_type as the internal representation + + file_type m_value; + }; + + inline bool status_known( file_status f ) { return f.type() != status_unknown; } + inline bool exists( file_status f ) { return f.type() != status_unknown && f.type() != file_not_found; } + inline bool is_regular_file(file_status f){ return f.type() == regular_file; } + inline bool is_directory( file_status f ) { return f.type() == directory_file; } + inline bool is_symlink( file_status f ) { return f.type() == symlink_file; } + inline bool is_other( file_status f ) { return exists(f) && !is_regular_file(f) && !is_directory(f) && !is_symlink(f); } + +# ifndef BOOST_FILESYSTEM_NO_DEPRECATED + inline bool is_regular( file_status f ) { return f.type() == regular_file; } +# endif + + struct space_info + { + // all values are byte counts + boost::uintmax_t capacity; + boost::uintmax_t free; // <= capacity + boost::uintmax_t available; // <= free + }; + + namespace detail + { + typedef std::pair< system::error_code, bool > + query_pair; + + typedef std::pair< system::error_code, boost::uintmax_t > + uintmax_pair; + + typedef std::pair< system::error_code, std::time_t > + time_pair; + + typedef std::pair< system::error_code, space_info > + space_pair; + + template< class Path > + struct directory_pair + { + typedef std::pair< system::error_code, + typename Path::external_string_type > type; + }; + +# ifndef BOOST_FILESYSTEM_NO_DEPRECATED + BOOST_FILESYSTEM_DECL bool + symbolic_link_exists_api( const std::string & ); // deprecated +# endif + + BOOST_FILESYSTEM_DECL file_status + status_api( const std::string & ph, system::error_code & ec ); +# ifndef BOOST_WINDOWS_API + BOOST_FILESYSTEM_DECL file_status + symlink_status_api( const std::string & ph, system::error_code & ec ); +# endif + BOOST_FILESYSTEM_DECL query_pair + is_empty_api( const std::string & ph ); + BOOST_FILESYSTEM_DECL query_pair + equivalent_api( const std::string & ph1, const std::string & ph2 ); + BOOST_FILESYSTEM_DECL uintmax_pair + file_size_api( const std::string & ph ); + BOOST_FILESYSTEM_DECL space_pair + space_api( const std::string & ph ); + BOOST_FILESYSTEM_DECL time_pair + last_write_time_api( const std::string & ph ); + BOOST_FILESYSTEM_DECL system::error_code + last_write_time_api( const std::string & ph, std::time_t new_value ); + BOOST_FILESYSTEM_DECL system::error_code + get_current_path_api( std::string & ph ); + BOOST_FILESYSTEM_DECL system::error_code + set_current_path_api( const std::string & ph ); + BOOST_FILESYSTEM_DECL query_pair + create_directory_api( const std::string & ph ); + BOOST_FILESYSTEM_DECL system::error_code + create_hard_link_api( const std::string & to_ph, + const std::string & from_ph ); + BOOST_FILESYSTEM_DECL system::error_code + create_symlink_api( const std::string & to_ph, + const std::string & from_ph ); + BOOST_FILESYSTEM_DECL system::error_code + remove_api( const std::string & ph ); + BOOST_FILESYSTEM_DECL system::error_code + rename_api( const std::string & from, const std::string & to ); + BOOST_FILESYSTEM_DECL system::error_code + copy_file_api( const std::string & from, const std::string & to ); + +# if defined(BOOST_WINDOWS_API) + + BOOST_FILESYSTEM_DECL system::error_code + get_full_path_name_api( const std::string & ph, std::string & target ); + +# if !defined(BOOST_FILESYSTEM_NARROW_ONLY) + + BOOST_FILESYSTEM_DECL boost::filesystem::file_status + status_api( const std::wstring & ph, system::error_code & ec ); + BOOST_FILESYSTEM_DECL query_pair + is_empty_api( const std::wstring & ph ); + BOOST_FILESYSTEM_DECL query_pair + equivalent_api( const std::wstring & ph1, const std::wstring & ph2 ); + BOOST_FILESYSTEM_DECL uintmax_pair + file_size_api( const std::wstring & ph ); + BOOST_FILESYSTEM_DECL space_pair + space_api( const std::wstring & ph ); + BOOST_FILESYSTEM_DECL system::error_code + get_full_path_name_api( const std::wstring & ph, std::wstring & target ); + BOOST_FILESYSTEM_DECL time_pair + last_write_time_api( const std::wstring & ph ); + BOOST_FILESYSTEM_DECL system::error_code + last_write_time_api( const std::wstring & ph, std::time_t new_value ); + BOOST_FILESYSTEM_DECL system::error_code + get_current_path_api( std::wstring & ph ); + BOOST_FILESYSTEM_DECL system::error_code + set_current_path_api( const std::wstring & ph ); + BOOST_FILESYSTEM_DECL query_pair + create_directory_api( const std::wstring & ph ); +# ifdef BOOST_FS_HARD_LINK + BOOST_FILESYSTEM_DECL system::error_code + create_hard_link_api( const std::wstring & existing_ph, + const std::wstring & new_ph ); +# endif + BOOST_FILESYSTEM_DECL system::error_code + create_symlink_api( const std::wstring & to_ph, + const std::wstring & from_ph ); + BOOST_FILESYSTEM_DECL system::error_code + remove_api( const std::wstring & ph ); + BOOST_FILESYSTEM_DECL system::error_code + rename_api( const std::wstring & from, const std::wstring & to ); + BOOST_FILESYSTEM_DECL system::error_code + copy_file_api( const std::wstring & from, const std::wstring & to ); + +# endif +# endif + + template<class Path> + bool remove_aux( const Path & ph, file_status f ); + + template<class Path> + unsigned long remove_all_aux( const Path & ph, file_status f ); + + } // namespace detail + +// operations functions ----------------------------------------------------// + + // The non-template overloads enable automatic conversion from std and + // C-style strings. See basic_path constructors. The enable_if for the + // templates implements the famous "do-the-right-thing" rule. + +// query functions ---------------------------------------------------------// + + BOOST_INLINE_FS_FUNC(file_status) + status( const Path & ph, system::error_code & ec ) + { return detail::status_api( ph.external_file_string(), ec ); } + + BOOST_FS_FUNC(file_status) + status( const Path & ph ) + { + system::error_code ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::status", ph, ec ) ); + return result; + } + + BOOST_INLINE_FS_FUNC(file_status) + symlink_status( const Path & ph, system::error_code & ec ) +# ifdef BOOST_WINDOWS_API + { return detail::status_api( ph.external_file_string(), ec ); } +# else + { return detail::symlink_status_api( ph.external_file_string(), ec ); } +# endif + + BOOST_FS_FUNC(file_status) + symlink_status( const Path & ph ) + { + system::error_code ec; + file_status result( symlink_status( ph, ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::symlink_status", ph, ec ) ); + return result; + } + +# ifndef BOOST_FILESYSTEM_NO_DEPRECATED + inline bool symbolic_link_exists( const path & ph ) + { return is_symlink( symlink_status(ph) ); } +# endif + + BOOST_FS_FUNC(bool) exists( const Path & ph ) + { + system::error_code ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::exists", ph, ec ) ); + return exists( result ); + } + + BOOST_FS_FUNC(bool) is_directory( const Path & ph ) + { + system::error_code ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::is_directory", ph, ec ) ); + return is_directory( result ); + } + + BOOST_FS_FUNC(bool) is_regular_file( const Path & ph ) + { + system::error_code ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::is_regular_file", ph, ec ) ); + return is_regular_file( result ); + } + +# ifndef BOOST_FILESYSTEM_NO_DEPRECATED + BOOST_FS_FUNC(bool) is_regular( const Path & ph ) + { + system::error_code ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::is_regular", ph, ec ) ); + return is_regular( result ); + } +# endif + + BOOST_FS_FUNC(bool) is_other( const Path & ph ) + { + system::error_code ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::is_other", ph, ec ) ); + return is_other( result ); + } + + BOOST_FS_FUNC(bool) is_symlink( +# ifdef BOOST_WINDOWS_API + const Path & ) + { + return false; +# else + const Path & ph) + { + system::error_code ec; + file_status result( detail::symlink_status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::is_symlink", ph, ec ) ); + return is_symlink( result ); +# endif + } + + // VC++ 7.0 and earlier has a serious namespace bug that causes a clash + // between boost::filesystem::is_empty and the unrelated type trait + // boost::is_empty. + +# if !defined( BOOST_MSVC ) || BOOST_MSVC > 1300 + BOOST_FS_FUNC(bool) is_empty( const Path & ph ) +# else + BOOST_FS_FUNC(bool) _is_empty( const Path & ph ) +# endif + { + detail::query_pair result( + detail::is_empty_api( ph.external_file_string() ) ); + if ( result.first ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::is_empty", ph, result.first ) ); + return result.second; + } + + BOOST_FS_FUNC(bool) equivalent( const Path & ph1, const Path & ph2 ) + { + detail::query_pair result( detail::equivalent_api( + ph1.external_file_string(), ph2.external_file_string() ) ); + if ( result.first ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::equivalent", ph1, ph2, result.first ) ); + return result.second; + } + + BOOST_FS_FUNC(boost::uintmax_t) file_size( const Path & ph ) + { + detail::uintmax_pair result + ( detail::file_size_api( ph.external_file_string() ) ); + if ( result.first ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::file_size", ph, result.first ) ); + return result.second; + } + + BOOST_FS_FUNC(space_info) space( const Path & ph ) + { + detail::space_pair result + ( detail::space_api( ph.external_file_string() ) ); + if ( result.first ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::space", ph, result.first ) ); + return result.second; + } + + BOOST_FS_FUNC(std::time_t) last_write_time( const Path & ph ) + { + detail::time_pair result + ( detail::last_write_time_api( ph.external_file_string() ) ); + if ( result.first ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::last_write_time", ph, result.first ) ); + return result.second; + } + + +// operations --------------------------------------------------------------// + + BOOST_FS_FUNC(bool) create_directory( const Path & dir_ph ) + { + detail::query_pair result( + detail::create_directory_api( dir_ph.external_directory_string() ) ); + if ( result.first ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::create_directory", + dir_ph, result.first ) ); + return result.second; + } + +#if !defined(BOOST_WINDOWS_API) || defined(BOOST_FS_HARD_LINK) + BOOST_FS_FUNC(void) + create_hard_link( const Path & to_ph, const Path & from_ph ) + { + system::error_code ec( + detail::create_hard_link_api( + to_ph.external_file_string(), + from_ph.external_file_string() ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::create_hard_link", + to_ph, from_ph, ec ) ); + } + + BOOST_FS_FUNC(system::error_code) + create_hard_link( const Path & to_ph, const Path & from_ph, + system::error_code & ec ) + { + ec = detail::create_hard_link_api( + to_ph.external_file_string(), + from_ph.external_file_string() ); + return ec; + } +#endif + + BOOST_FS_FUNC(void) + create_symlink( const Path & to_ph, const Path & from_ph ) + { + system::error_code ec( + detail::create_symlink_api( + to_ph.external_file_string(), + from_ph.external_file_string() ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::create_symlink", + to_ph, from_ph, ec ) ); + } + + BOOST_FS_FUNC(system::error_code) + create_symlink( const Path & to_ph, const Path & from_ph, + system::error_code & ec ) + { + ec = detail::create_symlink_api( + to_ph.external_file_string(), + from_ph.external_file_string() ); + return ec; + } + + BOOST_FS_FUNC(bool) remove( const Path & ph ) + { + system::error_code ec; + file_status f = symlink_status( ph, ec ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::remove", ph, ec ) ); + return detail::remove_aux( ph, f ); + } + + BOOST_FS_FUNC(unsigned long) remove_all( const Path & ph ) + { + system::error_code ec; + file_status f = symlink_status( ph, ec ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::remove_all", ph, ec ) ); + return exists( f ) ? detail::remove_all_aux( ph, f ) : 0; + } + + BOOST_FS_FUNC(void) rename( const Path & from_path, const Path & to_path ) + { + system::error_code ec( detail::rename_api( + from_path.external_directory_string(), + to_path.external_directory_string() ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::rename", + from_path, to_path, ec ) ); + } + + BOOST_FS_FUNC(void) copy_file( const Path & from_path, const Path & to_path ) + { + system::error_code ec( detail::copy_file_api( + from_path.external_directory_string(), + to_path.external_directory_string() ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::copy_file", + from_path, to_path, ec ) ); + } + + template< class Path > + Path current_path() + { + typename Path::external_string_type ph; + system::error_code ec( detail::get_current_path_api( ph ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::current_path", ec ) ); + return Path( Path::traits_type::to_internal( ph ) ); + } + + BOOST_FS_FUNC(void) current_path( const Path & ph ) + { + system::error_code ec( detail::set_current_path_api( + ph.external_directory_string() ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::current_path", ph, ec ) ); + } + + template< class Path > + const Path & initial_path() + { + static Path init_path; + if ( init_path.empty() ) init_path = current_path<Path>(); + return init_path; + } + +# ifndef BOOST_FILESYSTEM_NO_DEPRECATED + // legacy support + inline path current_path() // overload supports pre-i18n apps + { return current_path<boost::filesystem::path>(); } + inline const path & initial_path() // overload supports pre-i18n apps + { return initial_path<boost::filesystem::path>(); } +# endif + + BOOST_FS_FUNC(Path) system_complete( const Path & ph ) + { +# ifdef BOOST_WINDOWS_API + if ( ph.empty() ) return ph; + BOOST_FS_TYPENAME Path::external_string_type sys_ph; + system::error_code ec( detail::get_full_path_name_api( ph.external_file_string(), + sys_ph ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::system_complete", ph, ec ) ); + return Path( Path::traits_type::to_internal( sys_ph ) ); +# else + return (ph.empty() || ph.is_complete()) + ? ph : current_path<Path>() / ph; +# endif + } + + BOOST_FS_FUNC(Path) + complete( const Path & ph, + const Path & base/* = initial_path<Path>() */) + { + BOOST_ASSERT( base.is_complete() + && (ph.is_complete() || !ph.has_root_name()) + && "boost::filesystem::complete() precondition not met" ); +# ifdef BOOST_WINDOWS_PATH + if (ph.empty() || ph.is_complete()) return ph; + if ( !ph.has_root_name() ) + return ph.has_root_directory() + ? Path( base.root_name() ) / ph + : base / ph; + return base / ph; +# else + return (ph.empty() || ph.is_complete()) ? ph : base / ph; +# endif + } + + // VC++ 7.1 had trouble with default arguments, so separate one argument + // signatures are provided as workarounds; the effect is the same. + BOOST_FS_FUNC(Path) complete( const Path & ph ) + { return complete( ph, initial_path<Path>() ); } + + BOOST_FS_FUNC(void) + last_write_time( const Path & ph, const std::time_t new_time ) + { + system::error_code ec( detail::last_write_time_api( ph.external_file_string(), + new_time ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::last_write_time", ph, ec ) ); + } + +# ifndef BOOST_FILESYSTEM_NARROW_ONLY + + // "do-the-right-thing" overloads ---------------------------------------// + + inline file_status status( const path & ph ) + { return status<path>( ph ); } + inline file_status status( const wpath & ph ) + { return status<wpath>( ph ); } + + inline file_status status( const path & ph, system::error_code & ec ) + { return status<path>( ph, ec ); } + inline file_status status( const wpath & ph, system::error_code & ec ) + { return status<wpath>( ph, ec ); } + + inline file_status symlink_status( const path & ph ) + { return symlink_status<path>( ph ); } + inline file_status symlink_status( const wpath & ph ) + { return symlink_status<wpath>( ph ); } + + inline file_status symlink_status( const path & ph, system::error_code & ec ) + { return symlink_status<path>( ph, ec ); } + inline file_status symlink_status( const wpath & ph, system::error_code & ec ) + { return symlink_status<wpath>( ph, ec ); } + + inline bool exists( const path & ph ) { return exists<path>( ph ); } + inline bool exists( const wpath & ph ) { return exists<wpath>( ph ); } + + inline bool is_directory( const path & ph ) + { return is_directory<path>( ph ); } + inline bool is_directory( const wpath & ph ) + { return is_directory<wpath>( ph ); } + + inline bool is_regular_file( const path & ph ) + { return is_regular_file<path>( ph ); } + inline bool is_regular_file( const wpath & ph ) + { return is_regular_file<wpath>( ph ); } + +# ifndef BOOST_FILESYSTEM_NO_DEPRECATED + inline bool is_regular( const path & ph ) + { return is_regular<path>( ph ); } + inline bool is_regular( const wpath & ph ) + { return is_regular<wpath>( ph ); } +# endif + + inline bool is_other( const path & ph ) + { return is_other<path>( ph ); } + inline bool is_other( const wpath & ph ) + { return is_other<wpath>( ph ); } + + inline bool is_symlink( const path & ph ) + { return is_symlink<path>( ph ); } + inline bool is_symlink( const wpath & ph ) + { return is_symlink<wpath>( ph ); } + + inline bool is_empty( const path & ph ) + { return is_empty<path>( ph ); } + inline bool is_empty( const wpath & ph ) + { return is_empty<wpath>( ph ); } + + inline bool equivalent( const path & ph1, const path & ph2 ) + { return equivalent<path>( ph1, ph2 ); } + inline bool equivalent( const wpath & ph1, const wpath & ph2 ) + { return equivalent<wpath>( ph1, ph2 ); } + + inline boost::uintmax_t file_size( const path & ph ) + { return file_size<path>( ph ); } + inline boost::uintmax_t file_size( const wpath & ph ) + { return file_size<wpath>( ph ); } + + inline space_info space( const path & ph ) + { return space<path>( ph ); } + inline space_info space( const wpath & ph ) + { return space<wpath>( ph ); } + + inline std::time_t last_write_time( const path & ph ) + { return last_write_time<path>( ph ); } + inline std::time_t last_write_time( const wpath & ph ) + { return last_write_time<wpath>( ph ); } + + inline bool create_directory( const path & dir_ph ) + { return create_directory<path>( dir_ph ); } + inline bool create_directory( const wpath & dir_ph ) + { return create_directory<wpath>( dir_ph ); } + +#if !defined(BOOST_WINDOWS_API) || defined(BOOST_FS_HARD_LINK) + inline void create_hard_link( const path & to_ph, + const path & from_ph ) + { return create_hard_link<path>( to_ph, from_ph ); } + inline void create_hard_link( const wpath & to_ph, + const wpath & from_ph ) + { return create_hard_link<wpath>( to_ph, from_ph ); } + + inline system::error_code create_hard_link( const path & to_ph, + const path & from_ph, system::error_code & ec ) + { return create_hard_link<path>( to_ph, from_ph, ec ); } + inline system::error_code create_hard_link( const wpath & to_ph, + const wpath & from_ph, system::error_code & ec ) + { return create_hard_link<wpath>( to_ph, from_ph, ec ); } +#endif + + inline void create_symlink( const path & to_ph, + const path & from_ph ) + { return create_symlink<path>( to_ph, from_ph ); } + inline void create_symlink( const wpath & to_ph, + const wpath & from_ph ) + { return create_symlink<wpath>( to_ph, from_ph ); } + + inline system::error_code create_symlink( const path & to_ph, + const path & from_ph, system::error_code & ec ) + { return create_symlink<path>( to_ph, from_ph, ec ); } + inline system::error_code create_symlink( const wpath & to_ph, + const wpath & from_ph, system::error_code & ec ) + { return create_symlink<wpath>( to_ph, from_ph, ec ); } + + inline bool remove( const path & ph ) + { return remove<path>( ph ); } + inline bool remove( const wpath & ph ) + { return remove<wpath>( ph ); } + + inline unsigned long remove_all( const path & ph ) + { return remove_all<path>( ph ); } + inline unsigned long remove_all( const wpath & ph ) + { return remove_all<wpath>( ph ); } + + inline void rename( const path & from_path, const path & to_path ) + { return rename<path>( from_path, to_path ); } + inline void rename( const wpath & from_path, const wpath & to_path ) + { return rename<wpath>( from_path, to_path ); } + + inline void copy_file( const path & from_path, const path & to_path ) + { return copy_file<path>( from_path, to_path ); } + inline void copy_file( const wpath & from_path, const wpath & to_path ) + { return copy_file<wpath>( from_path, to_path ); } + + inline path system_complete( const path & ph ) + { return system_complete<path>( ph ); } + inline wpath system_complete( const wpath & ph ) + { return system_complete<wpath>( ph ); } + + inline path complete( const path & ph, + const path & base/* = initial_path<path>()*/ ) + { return complete<path>( ph, base ); } + inline wpath complete( const wpath & ph, + const wpath & base/* = initial_path<wpath>()*/ ) + { return complete<wpath>( ph, base ); } + + inline path complete( const path & ph ) + { return complete<path>( ph, initial_path<path>() ); } + inline wpath complete( const wpath & ph ) + { return complete<wpath>( ph, initial_path<wpath>() ); } + + inline void last_write_time( const path & ph, const std::time_t new_time ) + { last_write_time<path>( ph, new_time ); } + inline void last_write_time( const wpath & ph, const std::time_t new_time ) + { last_write_time<wpath>( ph, new_time ); } + + inline void current_path( const path & ph ) + { current_path<path>( ph ); } + inline void current_path( const wpath & ph ) + { current_path<wpath>( ph ); } + +# endif // ifndef BOOST_FILESYSTEM_NARROW_ONLY + + namespace detail + { + template<class Path> + bool remove_aux( const Path & ph, file_status f ) + { + if ( exists( f ) ) + { + system::error_code ec = remove_api( ph.external_file_string() ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::remove", ph, ec ) ); + return true; + } + return false; + } + + template<class Path> + unsigned long remove_all_aux( const Path & ph, file_status f ) + { + static const boost::filesystem::basic_directory_iterator<Path> end_itr; + unsigned long count = 1; + if ( !boost::filesystem::is_symlink( f ) // don't recurse symbolic links + && boost::filesystem::is_directory( f ) ) + { + for ( boost::filesystem::basic_directory_iterator<Path> itr( ph ); + itr != end_itr; ++itr ) + { + boost::system::error_code ec; + boost::filesystem::file_status fn = boost::filesystem::symlink_status( itr->path(), ec ); + if ( ec ) + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem:remove_all", ph, ec ) ); + count += remove_all_aux( itr->path(), fn ); + } + } + remove_aux( ph, f ); + return count; + } + +// test helper -------------------------------------------------------------// + + // not part of the documented interface because false positives are possible; + // there is no law that says that an OS that has large stat.st_size + // actually supports large file sizes. + BOOST_FILESYSTEM_DECL bool possible_large_file_size_support(); + +// directory_iterator helpers ----------------------------------------------// + +// forwarding functions avoid need for BOOST_FILESYSTEM_DECL for class +// basic_directory_iterator, and so avoid iterator_facade DLL template +// problems. They also overload to the proper external path character type. + + BOOST_FILESYSTEM_DECL system::error_code + dir_itr_first( void *& handle, +#if defined(BOOST_POSIX_API) + void *& buffer, +#endif + const std::string & dir_path, + std::string & target, file_status & fs, file_status & symlink_fs ); + // eof: return==0 && handle==0 + + BOOST_FILESYSTEM_DECL system::error_code + dir_itr_increment( void *& handle, +#if defined(BOOST_POSIX_API) + void *& buffer, +#endif + std::string & target, file_status & fs, file_status & symlink_fs ); + // eof: return==0 && handle==0 + + BOOST_FILESYSTEM_DECL system::error_code + dir_itr_close( void *& handle +#if defined(BOOST_POSIX_API) + , void *& buffer +#endif + ); + // Effects: none if handle==0, otherwise close handle, set handle=0 + +# if defined(BOOST_WINDOWS_API) && !defined(BOOST_FILESYSTEM_NARROW_ONLY) + BOOST_FILESYSTEM_DECL system::error_code + dir_itr_first( void *& handle, const std::wstring & ph, + std::wstring & target, file_status & fs, file_status & symlink_fs ); + BOOST_FILESYSTEM_DECL system::error_code + dir_itr_increment( void *& handle, std::wstring & target, + file_status & fs, file_status & symlink_fs ); +# endif + + template< class Path > + class dir_itr_imp + { + public: + basic_directory_entry<Path> m_directory_entry; + void * m_handle; +# ifdef BOOST_POSIX_API + void * m_buffer; // see dir_itr_increment implementation +# endif + dir_itr_imp() : m_handle(0) +# ifdef BOOST_POSIX_API + , m_buffer(0) +# endif + {} + + ~dir_itr_imp() { dir_itr_close( m_handle +#if defined(BOOST_POSIX_API) + , m_buffer +#endif + ); } + }; + + BOOST_FILESYSTEM_DECL system::error_code not_found_error(); + + } // namespace detail + +// basic_directory_iterator ------------------------------------------------// + + template< class Path > + class basic_directory_iterator + : public boost::iterator_facade< + basic_directory_iterator<Path>, + basic_directory_entry<Path>, + boost::single_pass_traversal_tag > + { + public: + typedef Path path_type; + + basic_directory_iterator(){} // creates the "end" iterator + + explicit basic_directory_iterator( const Path & dir_path ); + basic_directory_iterator( const Path & dir_path, system::error_code & ec ); + + private: + + // shared_ptr provides shallow-copy semantics required for InputIterators. + // m_imp.get()==0 indicates the end iterator. + boost::shared_ptr< detail::dir_itr_imp< Path > > m_imp; + + friend class boost::iterator_core_access; + + typename boost::iterator_facade< + basic_directory_iterator<Path>, + basic_directory_entry<Path>, + boost::single_pass_traversal_tag >::reference dereference() const + { + BOOST_ASSERT( m_imp.get() && "attempt to dereference end iterator" ); + return m_imp->m_directory_entry; + } + + void increment(); + + bool equal( const basic_directory_iterator & rhs ) const + { return m_imp == rhs.m_imp; } + + system::error_code m_init( const Path & dir_path ); + }; + + typedef basic_directory_iterator< path > directory_iterator; +# ifndef BOOST_FILESYSTEM_NARROW_ONLY + typedef basic_directory_iterator< wpath > wdirectory_iterator; +# endif + + // basic_directory_iterator implementation ---------------------------// + + template<class Path> + system::error_code basic_directory_iterator<Path>::m_init( + const Path & dir_path ) + { + if ( dir_path.empty() ) + { + m_imp.reset(); + return detail::not_found_error(); + } + typename Path::external_string_type name; + file_status fs, symlink_fs; + system::error_code ec( detail::dir_itr_first( m_imp->m_handle, +#if defined(BOOST_POSIX_API) + m_imp->m_buffer, +#endif + dir_path.external_directory_string(), + name, fs, symlink_fs ) ); + + if ( ec ) + { + m_imp.reset(); + return ec; + } + + if ( m_imp->m_handle == 0 ) m_imp.reset(); // eof, so make end iterator + else // not eof + { + m_imp->m_directory_entry.assign( dir_path + / Path::traits_type::to_internal( name ), fs, symlink_fs ); + if ( name[0] == dot<Path>::value // dot or dot-dot + && (name.size() == 1 + || (name[1] == dot<Path>::value + && name.size() == 2)) ) + { increment(); } + } + return boost::system::error_code(); + } + + template<class Path> + basic_directory_iterator<Path>::basic_directory_iterator( + const Path & dir_path ) + : m_imp( new detail::dir_itr_imp<Path> ) + { + system::error_code ec( m_init(dir_path) ); + if ( ec ) + { + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::basic_directory_iterator constructor", + dir_path, ec ) ); + } + } + + template<class Path> + basic_directory_iterator<Path>::basic_directory_iterator( + const Path & dir_path, system::error_code & ec ) + : m_imp( new detail::dir_itr_imp<Path> ) + { + ec = m_init(dir_path); + } + + template<class Path> + void basic_directory_iterator<Path>::increment() + { + BOOST_ASSERT( m_imp.get() && "attempt to increment end iterator" ); + BOOST_ASSERT( m_imp->m_handle != 0 && "internal program error" ); + + typename Path::external_string_type name; + file_status fs, symlink_fs; + system::error_code ec; + + for (;;) + { + ec = detail::dir_itr_increment( m_imp->m_handle, +#if defined(BOOST_POSIX_API) + m_imp->m_buffer, +#endif + name, fs, symlink_fs ); + if ( ec ) + { + boost::throw_exception( basic_filesystem_error<Path>( + "boost::filesystem::basic_directory_iterator increment", + m_imp->m_directory_entry.path().parent_path(), ec ) ); + } + if ( m_imp->m_handle == 0 ) { m_imp.reset(); return; } // eof, make end + if ( !(name[0] == dot<Path>::value // !(dot or dot-dot) + && (name.size() == 1 + || (name[1] == dot<Path>::value + && name.size() == 2))) ) + { + m_imp->m_directory_entry.replace_filename( + Path::traits_type::to_internal( name ), fs, symlink_fs ); + return; + } + } + } + + // basic_directory_entry -----------------------------------------------// + + template<class Path> + class basic_directory_entry + { + public: + typedef Path path_type; + typedef typename Path::string_type string_type; + + // compiler generated copy-ctor, copy assignment, and destructor apply + + basic_directory_entry() {} + explicit basic_directory_entry( const path_type & p, + file_status st = file_status(), file_status symlink_st=file_status() ) + : m_path(p), m_status(st), m_symlink_status(symlink_st) + {} + + void assign( const path_type & p, + file_status st, file_status symlink_st ) + { m_path = p; m_status = st; m_symlink_status = symlink_st; } + + void replace_filename( const string_type & s, + file_status st, file_status symlink_st ) + { + m_path.remove_filename(); + m_path /= s; + m_status = st; + m_symlink_status = symlink_st; + } + +# ifndef BOOST_FILESYSTEM_NO_DEPRECATED + void replace_leaf( const string_type & s, + file_status st, file_status symlink_st ) + { replace_filename( s, st, symlink_st ); } +# endif + + const Path & path() const { return m_path; } + file_status status() const; + file_status status( system::error_code & ec ) const; + file_status symlink_status() const; + file_status symlink_status( system::error_code & ec ) const; + + // conversion simplifies the most common use of basic_directory_entry + operator const path_type &() const { return m_path; } + +# ifndef BOOST_FILESYSTEM_NO_DEPRECATED + // deprecated functions preserve common use cases in legacy code + typename Path::string_type filename() const + { + return path().filename(); + } + typename Path::string_type leaf() const + { + return path().filename(); + } + typename Path::string_type string() const + { + return path().string(); + } +# endif + + private: + path_type m_path; + mutable file_status m_status; // stat()-like + mutable file_status m_symlink_status; // lstat()-like + // note: m_symlink_status is not used by Windows implementation + + }; // basic_directory_status + + typedef basic_directory_entry<path> directory_entry; +# ifndef BOOST_FILESYSTEM_NARROW_ONLY + typedef basic_directory_entry<wpath> wdirectory_entry; +# endif + + // basic_directory_entry implementation --------------------------------// + + template<class Path> + file_status + basic_directory_entry<Path>::status() const + { + if ( !status_known( m_status ) ) + { +# ifndef BOOST_WINDOWS_API + if ( status_known( m_symlink_status ) + && !is_symlink( m_symlink_status ) ) + { m_status = m_symlink_status; } + else { m_status = boost::filesystem::status( m_path ); } +# else + m_status = boost::filesystem::status( m_path ); +# endif + } + return m_status; + } + + template<class Path> + file_status + basic_directory_entry<Path>::status( system::error_code & ec ) const + { + if ( !status_known( m_status ) ) + { +# ifndef BOOST_WINDOWS_API + if ( status_known( m_symlink_status ) + && !is_symlink( m_symlink_status ) ) + { ec = boost::system::error_code();; m_status = m_symlink_status; } + else { m_status = boost::filesystem::status( m_path, ec ); } +# else + m_status = boost::filesystem::status( m_path, ec ); +# endif + } + else ec = boost::system::error_code();; + return m_status; + } + + template<class Path> + file_status + basic_directory_entry<Path>::symlink_status() const + { +# ifndef BOOST_WINDOWS_API + if ( !status_known( m_symlink_status ) ) + { m_symlink_status = boost::filesystem::symlink_status( m_path ); } + return m_symlink_status; +# else + return status(); +# endif + } + + template<class Path> + file_status + basic_directory_entry<Path>::symlink_status( system::error_code & ec ) const + { +# ifndef BOOST_WINDOWS_API + if ( !status_known( m_symlink_status ) ) + { m_symlink_status = boost::filesystem::symlink_status( m_path, ec ); } + else ec = boost::system::error_code();; + return m_symlink_status; +# else + return status( ec ); +# endif + } + } // namespace filesystem +} // namespace boost + +#undef BOOST_FS_FUNC + + +#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas +#endif // BOOST_FILESYSTEM_OPERATIONS_HPP |