diff -r 000000000000 -r e4d67989cc36 ossrv_pub/boost_apis/boost/filesystem/operations.hpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ossrv_pub/boost_apis/boost/filesystem/operations.hpp Tue Feb 02 02:01:42 2010 +0200 @@ -0,0 +1,1099 @@ +// boost/filesystem/operations.hpp -----------------------------------------// + +// Copyright 2002-2005 Beman Dawes +// Copyright 2002 Jan Langer +// Copyright 2001 Dietmar Kuehl +// +// Use, modification, and distribution is subject to 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 // includes + +#include +#include +#include +#include +#include +#include + +#include +#include // for pair +#include + +#ifdef BOOST_WINDOWS_API +# include +# if !defined(_WIN32_WINNT) || _WIN32_WINNT >= 0x0500 +# define BOOST_FS_HARD_LINK // Default for Windows 2K or later +# endif +#endif + +#include // must be the last #include + +# ifdef BOOST_NO_STDC_NAMESPACE + namespace std { using ::time_t; } +# endif + +# ifndef BOOST_FILESYSTEM_NARROW_ONLY +# define BOOST_FS_FUNC(BOOST_FS_TYPE) \ + template typename boost::enable_if, \ + BOOST_FS_TYPE>::type +# define BOOST_INLINE_FS_FUNC(BOOST_FS_TYPE) \ + template inline typename boost::enable_if, \ + 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 + +//----------------------------------------------------------------------------// + +namespace boost +{ + namespace filesystem + { + template class basic_directory_iterator; + + // BOOST_FILESYSTEM_NARROW_ONLY needs this: + typedef basic_directory_iterator directory_iterator; + + template 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 + }; + + 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_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(f) && !is_directory(f) && !is_symlink(f); } + + 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< boost::filesystem::system_error_type, bool > + query_pair; + + typedef std::pair< boost::filesystem::system_error_type, boost::uintmax_t > + uintmax_pair; + + typedef std::pair< boost::filesystem::system_error_type, std::time_t > + time_pair; + + typedef std::pair< boost::filesystem::system_error_type, space_info > + space_pair; + + template< class Path > + struct directory_pair + { + typedef std::pair< boost::filesystem::system_error_type, + 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_type & ec ); +# ifndef BOOST_WINDOWS_API + BOOST_FILESYSTEM_DECL file_status + symlink_status_api( const std::string & ph, system_error_type & 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 boost::filesystem::system_error_type + last_write_time_api( const std::string & ph, std::time_t new_value ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + get_current_path_api( std::string & ph ); + BOOST_FILESYSTEM_DECL query_pair + create_directory_api( const std::string & ph ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + create_hard_link_api( const std::string & to_ph, + const std::string & from_ph ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + create_symlink_api( const std::string & to_ph, + const std::string & from_ph ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + remove_api( const std::string & ph ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + rename_api( const std::string & from, const std::string & to ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + copy_file_api( const std::string & from, const std::string & to ); + +# if defined(BOOST_WINDOWS_API) + + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + 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_type & 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 boost::filesystem::system_error_type + 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 boost::filesystem::system_error_type + last_write_time_api( const std::wstring & ph, std::time_t new_value ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + get_current_path_api( std::wstring & ph ); + BOOST_FILESYSTEM_DECL query_pair + create_directory_api( const std::wstring & ph ); +# ifdef BOOST_FS_HARD_LINK + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + create_hard_link_api( const std::wstring & existing_ph, + const std::wstring & new_ph ); +# endif + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + create_symlink_api( const std::wstring & to_ph, + const std::wstring & from_ph ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + remove_api( const std::wstring & ph ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + rename_api( const std::wstring & from, const std::wstring & to ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + copy_file_api( const std::wstring & from, const std::wstring & to ); + +# endif +# endif + + template + unsigned long remove_all_aux( const Path & ph ); + + } // 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_type & ec ) + { return detail::status_api( ph.external_file_string(), ec ); } + + BOOST_FS_FUNC(file_status) + status( const Path & ph ) + { + system_error_type ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::status", ph, ec ) ); + return result; + } + + BOOST_INLINE_FS_FUNC(file_status) + symlink_status( const Path & ph, system_error_type & 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_type ec; + file_status result( symlink_status( ph, ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error( + "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_type ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::exists", ph, ec ) ); + return exists( result ); + } + + BOOST_FS_FUNC(bool) is_directory( const Path & ph ) + { + system_error_type ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::is_directory", ph, ec ) ); + return is_directory( result ); + } + + BOOST_FS_FUNC(bool) is_regular( const Path & ph ) + { + system_error_type ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::is_regular", ph, ec ) ); + return is_regular( result ); + } + + BOOST_FS_FUNC(bool) is_other( const Path & ph ) + { + system_error_type ec; + file_status result( detail::status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error( + "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_type ec; + file_status result( detail::symlink_status_api( ph.external_file_string(), ec ) ); + if ( ec ) + boost::throw_exception( basic_filesystem_error( + "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 != 0 ) + boost::throw_exception( basic_filesystem_error( + "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 != 0 ) + boost::throw_exception( basic_filesystem_error( + "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 != 0 ) + boost::throw_exception( basic_filesystem_error( + "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 != 0 ) + boost::throw_exception( basic_filesystem_error( + "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 != 0 ) + boost::throw_exception( basic_filesystem_error( + "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 != 0 ) + boost::throw_exception( basic_filesystem_error( + "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_type result( + detail::create_hard_link_api( + to_ph.external_file_string(), + from_ph.external_file_string() ) ); + if ( result != 0 ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::create_hard_link", + to_ph, from_ph, result ) ); + } + + BOOST_FS_FUNC(system_error_type) + create_hard_link( const Path & to_ph, const Path & from_ph, + system_error_type & 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_type result( + detail::create_symlink_api( + to_ph.external_file_string(), + from_ph.external_file_string() ) ); + if ( result ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::create_symlink", + to_ph, from_ph, result ) ); + } + + BOOST_FS_FUNC(system_error_type) + create_symlink( const Path & to_ph, const Path & from_ph, + system_error_type & 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 ) + { + if ( exists( ph ) + || is_symlink( ph ) ) // handle dangling symbolic links + // note that the POSIX behavior for symbolic links is what we want; + // the link rather than what it points to is deleted. Windows behavior + // doesn't matter; is_symlink() is always false on Windows. + { + system_error_type result = detail::remove_api( ph.external_file_string() ); + if ( result != 0 ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::remove", + ph, result ) ); + return true; + } + return false; + } + + BOOST_FS_FUNC(unsigned long) remove_all( const Path & ph ) + { + return exists( ph )|| is_symlink( ph ) + ? detail::remove_all_aux( ph ) : 0; + } + + BOOST_FS_FUNC(void) rename( const Path & from_path, const Path & to_path ) + { + system_error_type result = detail::rename_api( + from_path.external_directory_string(), + to_path.external_directory_string() ); + if ( result != 0 ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::rename", + from_path, to_path, result ) ); + } + + BOOST_FS_FUNC(void) copy_file( const Path & from_path, const Path & to_path ) + { + system_error_type result = detail::copy_file_api( + from_path.external_directory_string(), + to_path.external_directory_string() ); + if ( result != 0 ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::copy_file", + from_path, to_path, result ) ); + } + + template< class Path > + Path current_path() + { + typename Path::external_string_type ph; + boost::filesystem::system_error_type result; + if ( (result = detail::get_current_path_api( ph )) != 0 ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::current_path", result ) ); + return Path( Path::traits_type::to_internal( ph ) ); + } + + template< class Path > + const Path & initial_path() + { + static Path init_path; + if ( init_path.empty() ) init_path = current_path(); + return init_path; + } + +# ifndef BOOST_FILESYSTEM_NO_DEPRECATED + // legacy support + inline path current_path() // overload supports pre-i18n apps + { return current_path(); } + inline const path & initial_path() // overload supports pre-i18n apps + { return initial_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; + boost::filesystem::system_error_type result; + if ( (result = detail::get_full_path_name_api( ph.external_file_string(), + sys_ph )) != 0 ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::system_complete", ph, result ) ); + return Path( Path::traits_type::to_internal( sys_ph ) ); +# else + return (ph.empty() || ph.is_complete()) + ? ph : current_path() / ph; +# endif + } + + BOOST_FS_FUNC(Path) + complete( const Path & ph, + const Path & base/* = initial_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() ); } + + BOOST_FS_FUNC(void) + last_write_time( const Path & ph, const std::time_t new_time ) + { + boost::filesystem::system_error_type result; + if ( (result = detail::last_write_time_api( ph.external_file_string(), + new_time )) != 0 ) + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::last_write_time", ph, result ) ); + } + +# ifndef BOOST_FILESYSTEM_NARROW_ONLY + + // "do-the-right-thing" overloads ---------------------------------------// + + inline file_status status( const path & ph ) + { return status( ph ); } + inline file_status status( const wpath & ph ) + { return status( ph ); } + + inline file_status status( const path & ph, system_error_type & ec ) + { return status( ph, ec ); } + inline file_status status( const wpath & ph, system_error_type & ec ) + { return status( ph, ec ); } + + inline file_status symlink_status( const path & ph ) + { return symlink_status( ph ); } + inline file_status symlink_status( const wpath & ph ) + { return symlink_status( ph ); } + + inline file_status symlink_status( const path & ph, system_error_type & ec ) + { return symlink_status( ph, ec ); } + inline file_status symlink_status( const wpath & ph, system_error_type & ec ) + { return symlink_status( ph, ec ); } + + inline bool exists( const path & ph ) { return exists( ph ); } + inline bool exists( const wpath & ph ) { return exists( ph ); } + + inline bool is_directory( const path & ph ) + { return is_directory( ph ); } + inline bool is_directory( const wpath & ph ) + { return is_directory( ph ); } + + inline bool is_regular( const path & ph ) + { return is_regular( ph ); } + inline bool is_regular( const wpath & ph ) + { return is_regular( ph ); } + + inline bool is_other( const path & ph ) + { return is_other( ph ); } + inline bool is_other( const wpath & ph ) + { return is_other( ph ); } + + inline bool is_symlink( const path & ph ) + { return is_symlink( ph ); } + inline bool is_symlink( const wpath & ph ) + { return is_symlink( ph ); } + + inline bool is_empty( const path & ph ) + { return is_empty( ph ); } + inline bool is_empty( const wpath & ph ) + { return is_empty( ph ); } + + inline bool equivalent( const path & ph1, const path & ph2 ) + { return equivalent( ph1, ph2 ); } + inline bool equivalent( const wpath & ph1, const wpath & ph2 ) + { return equivalent( ph1, ph2 ); } + + inline boost::uintmax_t file_size( const path & ph ) + { return file_size( ph ); } + inline boost::uintmax_t file_size( const wpath & ph ) + { return file_size( ph ); } + + inline space_info space( const path & ph ) + { return space( ph ); } + inline space_info space( const wpath & ph ) + { return space( ph ); } + + inline std::time_t last_write_time( const path & ph ) + { return last_write_time( ph ); } + inline std::time_t last_write_time( const wpath & ph ) + { return last_write_time( ph ); } + + inline bool create_directory( const path & dir_ph ) + { return create_directory( dir_ph ); } + inline bool create_directory( const wpath & dir_ph ) + { return create_directory( 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( to_ph, from_ph ); } + inline void create_hard_link( const wpath & to_ph, + const wpath & from_ph ) + { return create_hard_link( to_ph, from_ph ); } + + inline system_error_type create_hard_link( const path & to_ph, + const path & from_ph, system_error_type & ec ) + { return create_hard_link( to_ph, from_ph, ec ); } + inline system_error_type create_hard_link( const wpath & to_ph, + const wpath & from_ph, system_error_type & ec ) + { return create_hard_link( to_ph, from_ph, ec ); } +#endif + + inline void create_symlink( const path & to_ph, + const path & from_ph ) + { return create_symlink( to_ph, from_ph ); } + inline void create_symlink( const wpath & to_ph, + const wpath & from_ph ) + { return create_symlink( to_ph, from_ph ); } + + inline system_error_type create_symlink( const path & to_ph, + const path & from_ph, system_error_type & ec ) + { return create_symlink( to_ph, from_ph, ec ); } + inline system_error_type create_symlink( const wpath & to_ph, + const wpath & from_ph, system_error_type & ec ) + { return create_symlink( to_ph, from_ph, ec ); } + + inline bool remove( const path & ph ) + { return remove( ph ); } + inline bool remove( const wpath & ph ) + { return remove( ph ); } + + inline unsigned long remove_all( const path & ph ) + { return remove_all( ph ); } + inline unsigned long remove_all( const wpath & ph ) + { return remove_all( ph ); } + + inline void rename( const path & from_path, const path & to_path ) + { return rename( from_path, to_path ); } + inline void rename( const wpath & from_path, const wpath & to_path ) + { return rename( from_path, to_path ); } + + inline void copy_file( const path & from_path, const path & to_path ) + { return copy_file( from_path, to_path ); } + inline void copy_file( const wpath & from_path, const wpath & to_path ) + { return copy_file( from_path, to_path ); } + + inline path system_complete( const path & ph ) + { return system_complete( ph ); } + inline wpath system_complete( const wpath & ph ) + { return system_complete( ph ); } + + inline path complete( const path & ph, + const path & base/* = initial_path()*/ ) + { return complete( ph, base ); } + inline wpath complete( const wpath & ph, + const wpath & base/* = initial_path()*/ ) + { return complete( ph, base ); } + + inline path complete( const path & ph ) + { return complete( ph, initial_path() ); } + inline wpath complete( const wpath & ph ) + { return complete( ph, initial_path() ); } + + inline void last_write_time( const path & ph, const std::time_t new_time ) + { last_write_time( ph, new_time ); } + inline void last_write_time( const wpath & ph, const std::time_t new_time ) + { last_write_time( ph, new_time ); } + +# endif // BOOST_FILESYSTEM_NARROW_ONLY + + namespace detail + { + template + unsigned long remove_all_aux( const Path & ph ) + { + static const boost::filesystem::basic_directory_iterator end_itr; + unsigned long count = 1; + if ( !boost::filesystem::is_symlink( ph ) // don't recurse symbolic links + && boost::filesystem::is_directory( ph ) ) + { + for ( boost::filesystem::basic_directory_iterator itr( ph ); + itr != end_itr; ++itr ) + { + count += remove_all_aux( itr->path() ); + } + } + boost::filesystem::remove( ph ); + 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 boost::filesystem::system_error_type + 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 boost::filesystem::system_error_type + 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 boost::filesystem::system_error_type + 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 boost::filesystem::system_error_type + dir_itr_first( void *& handle, const std::wstring & ph, + std::wstring & target, file_status & fs, file_status & symlink_fs ); + BOOST_FILESYSTEM_DECL boost::filesystem::system_error_type + 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 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 extern system_error_type not_found_error; + } // namespace detail + +// basic_directory_iterator ------------------------------------------------// + + template< class Path > + class basic_directory_iterator + : public boost::iterator_facade< + basic_directory_iterator, + basic_directory_entry, + 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_type & 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, + basic_directory_entry, + 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_type 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 + system_error_type basic_directory_iterator::m_init( + const Path & dir_path ) + { + if ( dir_path.empty() ) + { + m_imp.reset(); + return detail::not_found_error; + } + system_error_type sys_err; + typename Path::external_string_type name; + file_status fs, symlink_fs; + + if ( (sys_err = 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 )) != 0 ) + { + m_imp.reset(); + return sys_err; + } + + 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::value // dot or dot-dot + && (name.size() == 1 + || (name[1] == dot::value + && name.size() == 2)) ) + { increment(); } + } + return 0; + } + + template + basic_directory_iterator::basic_directory_iterator( + const Path & dir_path ) + : m_imp( new detail::dir_itr_imp ) + { + system_error_type ec( m_init(dir_path) ); + if ( ec != 0 ) + { + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::basic_directory_iterator constructor", + dir_path, ec ) ); + } + } + + template + basic_directory_iterator::basic_directory_iterator( + const Path & dir_path, system_error_type & ec ) + : m_imp( new detail::dir_itr_imp ) + { + ec = m_init(dir_path); + } + + template + void basic_directory_iterator::increment() + { + BOOST_ASSERT( m_imp.get() && "attempt to increment end iterator" ); + BOOST_ASSERT( m_imp->m_handle != 0 && "internal program error" ); + + system_error_type sys_err(0); + typename Path::external_string_type name; + file_status fs, symlink_fs; + + for (;;) + { + if ( (sys_err = detail::dir_itr_increment( m_imp->m_handle, +#if defined(BOOST_POSIX_API) + m_imp->m_buffer, +#endif + name, fs, symlink_fs )) != 0 ) + { + boost::throw_exception( basic_filesystem_error( + "boost::filesystem::basic_directory_iterator increment", + m_imp->m_directory_entry.path().branch_path(), sys_err ) ); + } + if ( m_imp->m_handle == 0 ) { m_imp.reset(); return; } // eof, make end + if ( !(name[0] == dot::value // !(dot or dot-dot) + && (name.size() == 1 + || (name[1] == dot::value + && name.size() == 2))) ) + { + m_imp->m_directory_entry.replace_leaf( + Path::traits_type::to_internal( name ), fs, symlink_fs ); + return; + } + } + } + + // basic_directory_entry -----------------------------------------------// + + template + 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_leaf( const string_type & s, + file_status st, file_status symlink_st ) + { + m_path.remove_leaf(); + m_path /= s; + m_status = st; + m_symlink_status = symlink_st; + } + + const Path & path() const { return m_path; } + file_status status() const; + file_status status( system_error_type & ec ) const; + file_status symlink_status() const; + file_status symlink_status( system_error_type & 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 leaf() const + { + return path().leaf(); + } + 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 directory_entry; +# ifndef BOOST_FILESYSTEM_NARROW_ONLY + typedef basic_directory_entry wdirectory_entry; +# endif + + // basic_directory_entry implementation --------------------------------// + + template + file_status + basic_directory_entry::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 + file_status + basic_directory_entry::status( system_error_type & ec ) const + { + if ( !status_known( m_status ) ) + { +# ifndef BOOST_WINDOWS_API + if ( status_known( m_symlink_status ) + && !is_symlink( m_symlink_status ) ) + { ec = 0; 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 = 0; + return m_status; + } + + template + file_status + basic_directory_entry::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 + file_status + basic_directory_entry::symlink_status( system_error_type & ec ) const + { +# ifndef BOOST_WINDOWS_API + if ( !status_known( m_symlink_status ) ) + { m_symlink_status = boost::filesystem::symlink_status( m_path, ec ); } + else ec = 0; + return m_symlink_status; +# else + return status( ec ); +# endif + } + } // namespace filesystem +} // namespace boost + +#undef BOOST_FS_FUNC + + +#include // pops abi_prefix.hpp pragmas +#endif // BOOST_FILESYSTEM_OPERATIONS_HPP