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-// boost/filesystem/operations.hpp ---------------------------------------------------//
-
-// Copyright Beman Dawes 2002-2009
-// Copyright Jan Langer 2002
-// Copyright Dietmar Kuehl 2001
-// Copyright Vladimir Prus 2002
-
-// Distributed under the Boost Software License, Version 1.0.
-// See http://www.boost.org/LICENSE_1_0.txt
-
-// Library home page: http://www.boost.org/libs/filesystem
-
-//--------------------------------------------------------------------------------------//
-
-#ifndef BOOST_FILESYSTEM3_OPERATIONS_HPP
-#define BOOST_FILESYSTEM3_OPERATIONS_HPP
-
-#include <boost/config.hpp>
-
-# if defined( BOOST_NO_STD_WSTRING )
-# error Configuration not supported: Boost.Filesystem V3 and later requires std::wstring support
-# endif
-
-#include <boost/filesystem/v3/config.hpp>
-#include <boost/filesystem/v3/path.hpp>
-
-#include <boost/detail/scoped_enum_emulation.hpp>
-#include <boost/detail/bitmask.hpp>
-#include <boost/system/error_code.hpp>
-#include <boost/system/system_error.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>
-#include <vector>
-#include <stack>
-
-#ifdef BOOST_WINDOWS_API
-# include <fstream>
-#endif
-
-#include <boost/config/abi_prefix.hpp> // must be the last #include
-
-//--------------------------------------------------------------------------------------//
-
-namespace boost
-{
- namespace filesystem3
- {
-
-//--------------------------------------------------------------------------------------//
-// file_type //
-//--------------------------------------------------------------------------------------//
-
- enum file_type
- {
- status_error,
-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
- status_unknown = status_error,
-# endif
- file_not_found,
- regular_file,
- directory_file,
- // the following may not apply to some operating systems or file systems
- symlink_file,
- block_file,
- character_file,
- fifo_file,
- socket_file,
- reparse_file, // Windows: FILE_ATTRIBUTE_REPARSE_POINT that is not a symlink
- 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
-
- _detail_directory_symlink // internal use only; never exposed to users
- };
-
-//--------------------------------------------------------------------------------------//
-// perms //
-//--------------------------------------------------------------------------------------//
-
- enum perms
- {
- no_perms = 0, // file_not_found is no_perms rather than perms_not_known
-
- // POSIX equivalent macros given in comments.
- // Values are from POSIX and are given in octal per the POSIX standard.
-
- // permission bits
-
- owner_read = 0400, // S_IRUSR, Read permission, owner
- owner_write = 0200, // S_IWUSR, Write permission, owner
- owner_exe = 0100, // S_IXUSR, Execute/search permission, owner
- owner_all = 0700, // S_IRWXU, Read, write, execute/search by owner
-
- group_read = 040, // S_IRGRP, Read permission, group
- group_write = 020, // S_IWGRP, Write permission, group
- group_exe = 010, // S_IXGRP, Execute/search permission, group
- group_all = 070, // S_IRWXG, Read, write, execute/search by group
-
- others_read = 04, // S_IROTH, Read permission, others
- others_write = 02, // S_IWOTH, Write permission, others
- others_exe = 01, // S_IXOTH, Execute/search permission, others
- others_all = 07, // S_IRWXO, Read, write, execute/search by others
-
- all_all = owner_all|group_all|others_all, // 0777
-
- // other POSIX bits
-
- set_uid_on_exe = 04000, // S_ISUID, Set-user-ID on execution
- set_gid_on_exe = 02000, // S_ISGID, Set-group-ID on execution
- sticky_bit = 01000, // S_ISVTX,
- // (POSIX XSI) On directories, restricted deletion flag
- // (V7) 'sticky bit': save swapped text even after use
- // (SunOS) On non-directories: don't cache this file
- // (SVID-v4.2) On directories: restricted deletion flag
- // Also see http://en.wikipedia.org/wiki/Sticky_bit
-
- perms_mask = all_all|set_uid_on_exe|set_gid_on_exe|sticky_bit, // 07777
-
- perms_not_known = 0xFFFF, // present when directory_entry cache not loaded
-
- // options for permissions() function
-
- add_perms = 0x1000, // adds the given permission bits to the current bits
- remove_perms = 0x2000, // removes the given permission bits from the current bits;
- // choose add_perms or remove_perms, not both; if neither add_perms
- // nor remove_perms is given, replace the current bits with
- // the given bits.
-
- symlink_perms = 0x4000 // on POSIX, don't resolve symlinks; implied on Windows
- };
-
- BOOST_BITMASK(perms)
-
-//--------------------------------------------------------------------------------------//
-// file_status //
-//--------------------------------------------------------------------------------------//
-
- class BOOST_FILESYSTEM_DECL file_status
- {
- public:
- file_status() : m_value(status_error), m_perms(perms_not_known) {}
- explicit file_status(file_type v, perms prms = perms_not_known)
- : m_value(v), m_perms(prms) {}
-
- // observers
- file_type type() const { return m_value; }
- perms permissions() const { return m_perms; }
-
- // modifiers
- void type(file_type v) { m_value = v; }
- void permissions(perms prms) { m_perms = prms; }
-
- bool operator==(const file_status& rhs) const { return type() == rhs.type() &&
- permissions() == rhs.permissions(); }
- bool operator!=(const file_status& rhs) const { return !(*this == rhs); }
-
- private:
- file_type m_value;
- enum perms m_perms;
- };
-
- inline bool type_present(file_status f) { return f.type() != status_error; }
- inline bool permissions_present(file_status f)
- {return f.permissions() != perms_not_known;}
- inline bool status_known(file_status f) { return type_present(f) && permissions_present(f); }
- inline bool exists(file_status f) { return f.type() != status_error
- && 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
- };
-
- BOOST_SCOPED_ENUM_START(copy_option)
- {none, fail_if_exists = none, overwrite_if_exists};
- BOOST_SCOPED_ENUM_END
-
-//--------------------------------------------------------------------------------------//
-// implementation details //
-//--------------------------------------------------------------------------------------//
-
- namespace detail
- {
- BOOST_FILESYSTEM_DECL
- file_status status(const path&p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- file_status symlink_status(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- bool is_empty(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- path initial_path(system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- path canonical(const path& p, const path& base, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void copy(const path& from, const path& to, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void copy_directory(const path& from, const path& to, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void copy_file(const path& from, const path& to,
- BOOST_SCOPED_ENUM(copy_option) option, // See ticket #2925
- system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void copy_symlink(const path& existing_symlink, const path& new_symlink, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- bool create_directories(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- bool create_directory(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void create_directory_symlink(const path& to, const path& from,
- system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void create_hard_link(const path& to, const path& from, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void create_symlink(const path& to, const path& from, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- path current_path(system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void current_path(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- bool equivalent(const path& p1, const path& p2, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- boost::uintmax_t file_size(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- boost::uintmax_t hard_link_count(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- std::time_t last_write_time(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void last_write_time(const path& p, const std::time_t new_time,
- system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void permissions(const path& p, perms prms, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- path read_symlink(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- // For standardization, if the committee doesn't like "remove", consider "eliminate"
- bool remove(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- boost::uintmax_t remove_all(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void rename(const path& old_p, const path& new_p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- void resize_file(const path& p, uintmax_t size, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- space_info space(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- path system_complete(const path& p, system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- path temp_directory_path(system::error_code* ec=0);
- BOOST_FILESYSTEM_DECL
- path unique_path(const path& p, system::error_code* ec=0);
- } // namespace detail
-
-//--------------------------------------------------------------------------------------//
-// //
-// status query functions //
-// //
-//--------------------------------------------------------------------------------------//
-
- inline
- file_status status(const path& p) {return detail::status(p);}
- inline
- file_status status(const path& p, system::error_code& ec)
- {return detail::status(p, &ec);}
- inline
- file_status symlink_status(const path& p) {return detail::symlink_status(p);}
- inline
- file_status symlink_status(const path& p, system::error_code& ec)
- {return detail::symlink_status(p, &ec);}
- inline
- bool exists(const path& p) {return exists(detail::status(p));}
- inline
- bool exists(const path& p, system::error_code& ec)
- {return exists(detail::status(p, &ec));}
- inline
- bool is_directory(const path& p) {return is_directory(detail::status(p));}
- inline
- bool is_directory(const path& p, system::error_code& ec)
- {return is_directory(detail::status(p, &ec));}
- inline
- bool is_regular_file(const path& p) {return is_regular_file(detail::status(p));}
- inline
- bool is_regular_file(const path& p, system::error_code& ec)
- {return is_regular_file(detail::status(p, &ec));}
- inline
- bool is_other(const path& p) {return is_other(detail::status(p));}
- inline
- bool is_other(const path& p, system::error_code& ec)
- {return is_other(detail::status(p, &ec));}
- inline
- bool is_symlink(const path& p) {return is_symlink(detail::symlink_status(p));}
- inline
- bool is_symlink(const path& p, system::error_code& ec)
- {return is_symlink(detail::symlink_status(p, &ec));}
-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
- inline
- bool is_regular(const path& p) {return is_regular(detail::status(p));}
- inline
- bool is_regular(const path& p, system::error_code& ec)
- {return is_regular(detail::status(p, &ec));}
-# endif
-
- inline
- bool is_empty(const path& p) {return detail::is_empty(p);}
- inline
- bool is_empty(const path& p, system::error_code& ec)
- {return detail::is_empty(p, &ec);}
-
-//--------------------------------------------------------------------------------------//
-// //
-// operational functions //
-// in alphabetical order, unless otherwise noted //
-// //
-//--------------------------------------------------------------------------------------//
-
- // forward declarations
- path current_path(); // fwd declaration
- path initial_path();
-
- BOOST_FILESYSTEM_DECL
- path absolute(const path& p, const path& base=current_path());
- // If base.is_absolute(), throws nothing. Thus no need for ec argument
-
- inline
- path canonical(const path& p, const path& base=current_path())
- {return detail::canonical(p, base);}
- inline
- path canonical(const path& p, system::error_code& ec)
- {return detail::canonical(p, current_path(), &ec);}
- inline
- path canonical(const path& p, const path& base, system::error_code& ec)
- {return detail::canonical(p, base, &ec);}
-
-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
- inline
- path complete(const path& p)
- {
- return absolute(p, initial_path());
- }
-
- inline
- path complete(const path& p, const path& base)
- {
- return absolute(p, base);
- }
-# endif
-
- inline
- void copy(const path& from, const path& to) {detail::copy(from, to);}
-
- inline
- void copy(const path& from, const path& to, system::error_code& ec)
- {detail::copy(from, to, &ec);}
- inline
- void copy_directory(const path& from, const path& to)
- {detail::copy_directory(from, to);}
- inline
- void copy_directory(const path& from, const path& to, system::error_code& ec)
- {detail::copy_directory(from, to, &ec);}
- inline
- void copy_file(const path& from, const path& to, // See ticket #2925
- BOOST_SCOPED_ENUM(copy_option) option)
- {detail::copy_file(from, to, option);}
- inline
- void copy_file(const path& from, const path& to)
- {detail::copy_file(from, to, copy_option::fail_if_exists);}
- inline
- void copy_file(const path& from, const path& to, // See ticket #2925
- BOOST_SCOPED_ENUM(copy_option) option, system::error_code& ec)
- {detail::copy_file(from, to, option, &ec);}
- inline
- void copy_file(const path& from, const path& to, system::error_code& ec)
- {detail::copy_file(from, to, copy_option::fail_if_exists, &ec);}
- inline
- void copy_symlink(const path& existing_symlink, const path& new_symlink) {detail::copy_symlink(existing_symlink, new_symlink);}
-
- inline
- void copy_symlink(const path& existing_symlink, const path& new_symlink, system::error_code& ec)
- {detail::copy_symlink(existing_symlink, new_symlink, &ec);}
- inline
- bool create_directories(const path& p) {return detail::create_directories(p);}
-
- inline
- bool create_directories(const path& p, system::error_code& ec)
- {return detail::create_directories(p, &ec);}
- inline
- bool create_directory(const path& p) {return detail::create_directory(p);}
-
- inline
- bool create_directory(const path& p, system::error_code& ec)
- {return detail::create_directory(p, &ec);}
- inline
- void create_directory_symlink(const path& to, const path& from)
- {detail::create_directory_symlink(to, from);}
- inline
- void create_directory_symlink(const path& to, const path& from, system::error_code& ec)
- {detail::create_directory_symlink(to, from, &ec);}
- inline
- void create_hard_link(const path& to, const path& new_hard_link) {detail::create_hard_link(to, new_hard_link);}
-
- inline
- void create_hard_link(const path& to, const path& new_hard_link, system::error_code& ec)
- {detail::create_hard_link(to, new_hard_link, &ec);}
- inline
- void create_symlink(const path& to, const path& new_symlink) {detail::create_symlink(to, new_symlink);}
-
- inline
- void create_symlink(const path& to, const path& new_symlink, system::error_code& ec)
- {detail::create_symlink(to, new_symlink, &ec);}
- inline
- path current_path() {return detail::current_path();}
-
- inline
- path current_path(system::error_code& ec) {return detail::current_path(&ec);}
-
- inline
- void current_path(const path& p) {detail::current_path(p);}
-
- inline
- void current_path(const path& p, system::error_code& ec) {detail::current_path(p, &ec);}
-
- inline
- bool equivalent(const path& p1, const path& p2) {return detail::equivalent(p1, p2);}
-
- inline
- bool equivalent(const path& p1, const path& p2, system::error_code& ec)
- {return detail::equivalent(p1, p2, &ec);}
- inline
- boost::uintmax_t file_size(const path& p) {return detail::file_size(p);}
-
- inline
- boost::uintmax_t file_size(const path& p, system::error_code& ec)
- {return detail::file_size(p, &ec);}
- inline
- boost::uintmax_t hard_link_count(const path& p) {return detail::hard_link_count(p);}
-
- inline
- boost::uintmax_t hard_link_count(const path& p, system::error_code& ec)
- {return detail::hard_link_count(p, &ec);}
- inline
- path initial_path() {return detail::initial_path();}
-
- inline
- path initial_path(system::error_code& ec) {return detail::initial_path(&ec);}
-
- template <class Path>
- path initial_path() {return initial_path();}
- template <class Path>
- path initial_path(system::error_code& ec) {return detail::initial_path(&ec);}
-
- inline
- std::time_t last_write_time(const path& p) {return detail::last_write_time(p);}
-
- inline
- std::time_t last_write_time(const path& p, system::error_code& ec)
- {return detail::last_write_time(p, &ec);}
- inline
- void last_write_time(const path& p, const std::time_t new_time)
- {detail::last_write_time(p, new_time);}
- inline
- void last_write_time(const path& p, const std::time_t new_time, system::error_code& ec)
- {detail::last_write_time(p, new_time, &ec);}
- inline
- void permissions(const path& p, perms prms)
- {detail::permissions(p, prms);}
- inline
- void permissions(const path& p, perms prms, system::error_code& ec)
- {detail::permissions(p, prms, &ec);}
-
- inline
- path read_symlink(const path& p) {return detail::read_symlink(p);}
-
- inline
- path read_symlink(const path& p, system::error_code& ec)
- {return detail::read_symlink(p, &ec);}
- inline
- // For standardization, if the committee doesn't like "remove", consider "eliminate"
- bool remove(const path& p) {return detail::remove(p);}
-
- inline
- bool remove(const path& p, system::error_code& ec) {return detail::remove(p, &ec);}
-
- inline
- boost::uintmax_t remove_all(const path& p) {return detail::remove_all(p);}
-
- inline
- boost::uintmax_t remove_all(const path& p, system::error_code& ec)
- {return detail::remove_all(p, &ec);}
- inline
- void rename(const path& old_p, const path& new_p) {detail::rename(old_p, new_p);}
-
- inline
- void rename(const path& old_p, const path& new_p, system::error_code& ec)
- {detail::rename(old_p, new_p, &ec);}
- inline // name suggested by Scott McMurray
- void resize_file(const path& p, uintmax_t size) {detail::resize_file(p, size);}
-
- inline
- void resize_file(const path& p, uintmax_t size, system::error_code& ec)
- {detail::resize_file(p, size, &ec);}
- inline
- space_info space(const path& p) {return detail::space(p);}
-
- inline
- space_info space(const path& p, system::error_code& ec) {return detail::space(p, &ec);}
-
-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
- inline bool symbolic_link_exists(const path& p)
- { return is_symlink(symlink_status(p)); }
-# endif
-
- inline
- path system_complete(const path& p) {return detail::system_complete(p);}
-
- inline
- path system_complete(const path& p, system::error_code& ec)
- {return detail::system_complete(p, &ec);}
- inline
- path temp_directory_path() {return detail::temp_directory_path();}
-
- inline
- path temp_directory_path(system::error_code& ec)
- {return detail::temp_directory_path(&ec);}
- inline
- path unique_path(const path& p="%%%%-%%%%-%%%%-%%%%")
- { return detail::unique_path(p); }
- inline
- path unique_path(const path& p, system::error_code& ec)
- { return detail::unique_path(p, &ec); }
-
-//--------------------------------------------------------------------------------------//
-// //
-// directory_entry //
-// //
-//--------------------------------------------------------------------------------------//
-
-// GCC has a problem with a member function named path within a namespace or
-// sub-namespace that also has a class named path. The workaround is to always
-// fully qualify the name path when it refers to the class name.
-
-class BOOST_FILESYSTEM_DECL directory_entry
-{
-public:
-
- // compiler generated copy constructor, copy assignment, and destructor apply
-
- directory_entry() {}
- explicit directory_entry(const boost::filesystem::path& 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 boost::filesystem::path& p,
- file_status st = file_status(), file_status symlink_st = file_status())
- { m_path = p; m_status = st; m_symlink_status = symlink_st; }
-
- void replace_filename(const boost::filesystem::path& p,
- file_status st = file_status(), file_status symlink_st = file_status())
- {
- m_path.remove_filename();
- m_path /= p;
- m_status = st;
- m_symlink_status = symlink_st;
- }
-
-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
- void replace_leaf(const boost::filesystem::path& p,
- file_status st, file_status symlink_st)
- { replace_filename(p, st, symlink_st); }
-# endif
-
- const boost::filesystem::path& path() const {return m_path;}
- file_status status() const {return m_get_status();}
- file_status status(system::error_code& ec) const {return m_get_status(&ec);}
- file_status symlink_status() const {return m_get_symlink_status();}
- file_status symlink_status(system::error_code& ec) const {return m_get_symlink_status(&ec);}
-
- bool operator==(const directory_entry& rhs) {return m_path == rhs.m_path;}
- bool operator!=(const directory_entry& rhs) {return m_path != rhs.m_path;}
- bool operator< (const directory_entry& rhs) {return m_path < rhs.m_path;}
- bool operator<=(const directory_entry& rhs) {return m_path <= rhs.m_path;}
- bool operator> (const directory_entry& rhs) {return m_path > rhs.m_path;}
- bool operator>=(const directory_entry& rhs) {return m_path >= rhs.m_path;}
-
-private:
- boost::filesystem::path m_path;
- mutable file_status m_status; // stat()-like
- mutable file_status m_symlink_status; // lstat()-like
-
- file_status m_get_status(system::error_code* ec=0) const;
- file_status m_get_symlink_status(system::error_code* ec=0) const;
-}; // directory_entry
-
-//--------------------------------------------------------------------------------------//
-// //
-// directory_iterator helpers //
-// //
-//--------------------------------------------------------------------------------------//
-
-class directory_iterator;
-
-namespace detail
-{
- BOOST_FILESYSTEM_DECL
- system::error_code dir_itr_close(// never throws()
- void *& handle
-# if defined(BOOST_POSIX_API)
- , void *& buffer
-# endif
- );
-
- struct dir_itr_imp
- {
- directory_entry dir_entry;
- void* handle;
-
-# ifdef BOOST_POSIX_API
- void* buffer; // see dir_itr_increment implementation
-# endif
-
- dir_itr_imp() : handle(0)
-# ifdef BOOST_POSIX_API
- , buffer(0)
-# endif
- {}
-
- ~dir_itr_imp() // never throws
- {
- dir_itr_close(handle
-# if defined(BOOST_POSIX_API)
- , buffer
-# endif
- );
- }
- };
-
- // see path::iterator: comment below
- BOOST_FILESYSTEM_DECL void directory_iterator_construct(directory_iterator& it,
- const path& p, system::error_code* ec);
- BOOST_FILESYSTEM_DECL void directory_iterator_increment(directory_iterator& it,
- system::error_code* ec);
-
-} // namespace detail
-
-//--------------------------------------------------------------------------------------//
-// //
-// directory_iterator //
-// //
-//--------------------------------------------------------------------------------------//
-
- class directory_iterator
- : public boost::iterator_facade< directory_iterator,
- directory_entry,
- boost::single_pass_traversal_tag >
- {
- public:
-
- directory_iterator(){} // creates the "end" iterator
-
- // iterator_facade derived classes don't seem to like implementations in
- // separate translation unit dll's, so forward to detail functions
- explicit directory_iterator(const path& p)
- : m_imp(new detail::dir_itr_imp)
- { detail::directory_iterator_construct(*this, p, 0); }
-
- directory_iterator(const path& p, system::error_code& ec)
- : m_imp(new detail::dir_itr_imp)
- { detail::directory_iterator_construct(*this, p, &ec); }
-
- ~directory_iterator() {} // never throws
-
- directory_iterator& increment(system::error_code& ec)
- {
- detail::directory_iterator_increment(*this, &ec);
- return *this;
- }
-
- private:
- friend struct detail::dir_itr_imp;
- friend BOOST_FILESYSTEM_DECL void detail::directory_iterator_construct(directory_iterator& it,
- const path& p, system::error_code* ec);
- friend BOOST_FILESYSTEM_DECL void detail::directory_iterator_increment(directory_iterator& it,
- system::error_code* ec);
-
- // shared_ptr provides shallow-copy semantics required for InputIterators.
- // m_imp.get()==0 indicates the end iterator.
- boost::shared_ptr< detail::dir_itr_imp > m_imp;
-
- friend class boost::iterator_core_access;
-
- boost::iterator_facade<
- directory_iterator,
- directory_entry,
- boost::single_pass_traversal_tag >::reference dereference() const
- {
- BOOST_ASSERT_MSG(m_imp.get(), "attempt to dereference end iterator");
- return m_imp->dir_entry;
- }
-
- void increment() { detail::directory_iterator_increment(*this, 0); }
-
- bool equal(const directory_iterator& rhs) const
- { return m_imp == rhs.m_imp; }
- };
-
-//--------------------------------------------------------------------------------------//
-// //
-// recursive_directory_iterator helpers //
-// //
-//--------------------------------------------------------------------------------------//
-
- BOOST_SCOPED_ENUM_START(symlink_option)
- {
- none,
- no_recurse = none, // don't follow directory symlinks (default behavior)
- recurse, // follow directory symlinks
- _detail_no_push = recurse << 1 // internal use only
- };
- BOOST_SCOPED_ENUM_END
-
- BOOST_BITMASK(BOOST_SCOPED_ENUM(symlink_option))
-
- namespace detail
- {
- struct recur_dir_itr_imp
- {
- typedef directory_iterator element_type;
- std::stack< element_type, std::vector< element_type > > m_stack;
- int m_level;
- BOOST_SCOPED_ENUM(symlink_option) m_options;
-
- recur_dir_itr_imp() : m_level(0), m_options(symlink_option::none) {}
-
- void increment(system::error_code* ec); // ec == 0 means throw on error
-
- void pop();
-
- };
-
- // Implementation is inline to avoid dynamic linking difficulties with m_stack:
- // Microsoft warning C4251, m_stack needs to have dll-interface to be used by
- // clients of struct 'boost::filesystem::detail::recur_dir_itr_imp'
-
- inline
- void recur_dir_itr_imp::increment(system::error_code* ec)
- // ec == 0 means throw on error
- {
- if ((m_options & symlink_option::_detail_no_push) == symlink_option::_detail_no_push)
- m_options &= ~symlink_option::_detail_no_push;
-
- else
- {
- // Logic for following predicate was contributed by Daniel Aarno to handle cyclic
- // symlinks correctly and efficiently, fixing ticket #5652.
- // if (((m_options & symlink_option::recurse) == symlink_option::recurse
- // || !is_symlink(m_stack.top()->symlink_status()))
- // && is_directory(m_stack.top()->status())) ...
- // The predicate code has since been rewritten to pass error_code arguments,
- // per ticket #5653.
- bool or_pred = (m_options & symlink_option::recurse) == symlink_option::recurse
- || (ec == 0 ? !is_symlink(m_stack.top()->symlink_status())
- : !is_symlink(m_stack.top()->symlink_status(*ec)));
- if (ec != 0 && *ec)
- return;
- bool and_pred = or_pred && (ec == 0 ? is_directory(m_stack.top()->status())
- : is_directory(m_stack.top()->status(*ec)));
- if (ec != 0 && *ec)
- return;
-
- if (and_pred)
- {
- if (ec == 0)
- m_stack.push(directory_iterator(m_stack.top()->path()));
- else
- {
- m_stack.push(directory_iterator(m_stack.top()->path(), *ec));
- if (*ec)
- return;
- }
- if (m_stack.top() != directory_iterator())
- {
- ++m_level;
- return;
- }
- m_stack.pop();
- }
- }
-
- while (!m_stack.empty() && ++m_stack.top() == directory_iterator())
- {
- m_stack.pop();
- --m_level;
- }
- }
-
- inline
- void recur_dir_itr_imp::pop()
- {
- BOOST_ASSERT_MSG(m_level > 0,
- "pop() on recursive_directory_iterator with level < 1");
-
- do
- {
- m_stack.pop();
- --m_level;
- }
- while (!m_stack.empty() && ++m_stack.top() == directory_iterator());
- }
- } // namespace detail
-
-//--------------------------------------------------------------------------------------//
-// //
-// recursive_directory_iterator //
-// //
-//--------------------------------------------------------------------------------------//
-
- class recursive_directory_iterator
- : public boost::iterator_facade<
- recursive_directory_iterator,
- directory_entry,
- boost::single_pass_traversal_tag >
- {
- public:
-
- recursive_directory_iterator(){} // creates the "end" iterator
-
- explicit recursive_directory_iterator(const path& dir_path,
- BOOST_SCOPED_ENUM(symlink_option) opt = symlink_option::none)
- : m_imp(new detail::recur_dir_itr_imp)
- {
- m_imp->m_options = opt;
- m_imp->m_stack.push(directory_iterator(dir_path));
- if (m_imp->m_stack.top() == directory_iterator())
- { m_imp.reset (); }
- }
-
- recursive_directory_iterator(const path& dir_path,
- BOOST_SCOPED_ENUM(symlink_option) opt,
- system::error_code & ec)
- : m_imp(new detail::recur_dir_itr_imp)
- {
- m_imp->m_options = opt;
- m_imp->m_stack.push(directory_iterator(dir_path, ec));
- if (m_imp->m_stack.top() == directory_iterator())
- { m_imp.reset (); }
- }
-
- recursive_directory_iterator(const path& dir_path,
- system::error_code & ec)
- : m_imp(new detail::recur_dir_itr_imp)
- {
- m_imp->m_options = symlink_option::none;
- m_imp->m_stack.push(directory_iterator(dir_path, ec));
- if (m_imp->m_stack.top() == directory_iterator())
- { m_imp.reset (); }
- }
-
- recursive_directory_iterator& increment(system::error_code& ec)
- {
- BOOST_ASSERT_MSG(m_imp.get(),
- "increment() on end recursive_directory_iterator");
- m_imp->increment(&ec);
- if (m_imp->m_stack.empty())
- m_imp.reset(); // done, so make end iterator
- return *this;
- }
-
- int level() const
- {
- BOOST_ASSERT_MSG(m_imp.get(),
- "level() on end recursive_directory_iterator");
- return m_imp->m_level;
- }
-
- bool no_push_pending() const
- {
- BOOST_ASSERT_MSG(m_imp.get(),
- "is_no_push_requested() on end recursive_directory_iterator");
- return (m_imp->m_options & symlink_option::_detail_no_push)
- == symlink_option::_detail_no_push;
- }
-
-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
- bool no_push_request() const { return no_push_pending(); }
-# endif
-
- void pop()
- {
- BOOST_ASSERT_MSG(m_imp.get(),
- "pop() on end recursive_directory_iterator");
- m_imp->pop();
- if (m_imp->m_stack.empty()) m_imp.reset(); // done, so make end iterator
- }
-
- void no_push(bool value=true)
- {
- BOOST_ASSERT_MSG(m_imp.get(),
- "no_push() on end recursive_directory_iterator");
- if (value)
- m_imp->m_options |= symlink_option::_detail_no_push;
- else
- m_imp->m_options &= ~symlink_option::_detail_no_push;
- }
-
- file_status status() const
- {
- BOOST_ASSERT_MSG(m_imp.get(),
- "status() on end recursive_directory_iterator");
- return m_imp->m_stack.top()->status();
- }
-
- file_status symlink_status() const
- {
- BOOST_ASSERT_MSG(m_imp.get(),
- "symlink_status() on end recursive_directory_iterator");
- return m_imp->m_stack.top()->symlink_status();
- }
-
- private:
-
- // shared_ptr provides shallow-copy semantics required for InputIterators.
- // m_imp.get()==0 indicates the end iterator.
- boost::shared_ptr< detail::recur_dir_itr_imp > m_imp;
-
- friend class boost::iterator_core_access;
-
- boost::iterator_facade<
- recursive_directory_iterator,
- directory_entry,
- boost::single_pass_traversal_tag >::reference
- dereference() const
- {
- BOOST_ASSERT_MSG(m_imp.get(),
- "dereference of end recursive_directory_iterator");
- return *m_imp->m_stack.top();
- }
-
- void increment()
- {
- BOOST_ASSERT_MSG(m_imp.get(),
- "increment of end recursive_directory_iterator");
- m_imp->increment(0);
- if (m_imp->m_stack.empty())
- m_imp.reset(); // done, so make end iterator
- }
-
- bool equal(const recursive_directory_iterator& rhs) const
- { return m_imp == rhs.m_imp; }
-
- };
-
-# if !defined(BOOST_FILESYSTEM_NO_DEPRECATED)
- typedef recursive_directory_iterator wrecursive_directory_iterator;
-# endif
-
-//--------------------------------------------------------------------------------------//
-// //
-// class filesystem_error //
-// //
-//--------------------------------------------------------------------------------------//
-
- class BOOST_SYMBOL_VISIBLE filesystem_error : public system::system_error
- {
- // see http://www.boost.org/more/error_handling.html for design rationale
-
- // all functions are inline to avoid issues with crossing dll boundaries
-
- public:
- // compiler generates copy constructor and copy assignment
-
- filesystem_error(
- const std::string & what_arg, system::error_code ec)
- : system::system_error(ec, what_arg)
- {
- try
- {
- m_imp_ptr.reset(new m_imp);
- }
- catch (...) { m_imp_ptr.reset(); }
- }
-
- filesystem_error(
- const std::string & what_arg, const path& path1_arg,
- system::error_code ec)
- : system::system_error(ec, what_arg)
- {
- try
- {
- m_imp_ptr.reset(new m_imp);
- m_imp_ptr->m_path1 = path1_arg;
- }
- catch (...) { m_imp_ptr.reset(); }
- }
-
- filesystem_error(
- const std::string & what_arg, const path& path1_arg,
- const path& path2_arg, system::error_code ec)
- : system::system_error(ec, what_arg)
- {
- try
- {
- m_imp_ptr.reset(new m_imp);
- m_imp_ptr->m_path1 = path1_arg;
- m_imp_ptr->m_path2 = path2_arg;
- }
- catch (...) { m_imp_ptr.reset(); }
- }
-
- ~filesystem_error() throw() {}
-
- const path& path1() const
- {
- static const path empty_path;
- return m_imp_ptr.get() ? m_imp_ptr->m_path1 : empty_path ;
- }
- const path& path2() const
- {
- static const path empty_path;
- return m_imp_ptr.get() ? m_imp_ptr->m_path2 : empty_path ;
- }
-
- const char* what() const throw()
- {
- if (!m_imp_ptr.get())
- return system::system_error::what();
-
- try
- {
- if (m_imp_ptr->m_what.empty())
- {
- m_imp_ptr->m_what = system::system_error::what();
- if (!m_imp_ptr->m_path1.empty())
- {
- m_imp_ptr->m_what += ": \"";
- m_imp_ptr->m_what += m_imp_ptr->m_path1.string();
- m_imp_ptr->m_what += "\"";
- }
- if (!m_imp_ptr->m_path2.empty())
- {
- m_imp_ptr->m_what += ", \"";
- m_imp_ptr->m_what += m_imp_ptr->m_path2.string();
- m_imp_ptr->m_what += "\"";
- }
- }
- return m_imp_ptr->m_what.c_str();
- }
- catch (...)
- {
- return system::system_error::what();
- }
- }
-
- private:
- struct m_imp
- {
- path m_path1; // may be empty()
- path m_path2; // may be empty()
- std::string m_what; // not built until needed
- };
- boost::shared_ptr<m_imp> m_imp_ptr;
- };
-
-// test helper -----------------------------------------------------------------------//
-
-// Not part of the documented interface since false positives are possible;
-// there is no law that says that an OS that has large stat.st_size
-// actually supports large file sizes.
-
- namespace detail
- {
- BOOST_FILESYSTEM_DECL bool possible_large_file_size_support();
- }
-
- } // namespace filesystem3
-} // namespace boost
-
-//----------------------------------------------------------------------------//
-
-namespace boost
-{
- namespace filesystem
- {
- // permissions
- using filesystem3::no_perms;
- using filesystem3::owner_read;
- using filesystem3::owner_write;
- using filesystem3::owner_exe;
- using filesystem3::owner_all;
- using filesystem3::group_read;
- using filesystem3::group_write;
- using filesystem3::group_exe;
- using filesystem3::group_all;
- using filesystem3::others_read;
- using filesystem3::others_write;
- using filesystem3::others_exe;
- using filesystem3::others_all;
- using filesystem3::all_all;
- using filesystem3::set_uid_on_exe;
- using filesystem3::set_gid_on_exe;
- using filesystem3::sticky_bit;
- using filesystem3::perms_mask;
- using filesystem3::perms_not_known;
- using filesystem3::add_perms;
- using filesystem3::remove_perms;
- using filesystem3::symlink_perms;
-
- using filesystem3::absolute;
- using filesystem3::block_file;
- using filesystem3::canonical;
- using filesystem3::character_file;
-// using filesystem3::copy;
- using filesystem3::copy_file;
- using filesystem3::copy_option;
- using filesystem3::copy_symlink;
- using filesystem3::create_directories;
- using filesystem3::create_directory;
- using filesystem3::create_hard_link;
- using filesystem3::create_symlink;
- using filesystem3::create_directory_symlink;
- using filesystem3::current_path;
- using filesystem3::directory_entry;
- using filesystem3::directory_file;
- using filesystem3::directory_iterator;
- using filesystem3::equivalent;
- using filesystem3::exists;
- using filesystem3::fifo_file;
- using filesystem3::file_not_found;
- using filesystem3::file_size;
- using filesystem3::file_status;
- using filesystem3::file_type;
- using filesystem3::filesystem_error;
- using filesystem3::hard_link_count;
- using filesystem3::initial_path;
- using filesystem3::is_directory;
- using filesystem3::is_directory;
- using filesystem3::is_empty;
- using filesystem3::is_other;
- using filesystem3::is_regular_file;
- using filesystem3::is_symlink;
- using filesystem3::last_write_time;
- using filesystem3::permissions;
- using filesystem3::permissions_present;
- using filesystem3::perms;
- using filesystem3::read_symlink;
- using filesystem3::recursive_directory_iterator;
- using filesystem3::regular_file;
- using filesystem3::reparse_file;
- using filesystem3::remove;
- using filesystem3::remove_all;
- using filesystem3::rename;
- using filesystem3::resize_file;
- using filesystem3::socket_file;
- using filesystem3::space;
- using filesystem3::space_info;
- using filesystem3::status;
- using filesystem3::status_error;
- using filesystem3::status_known;
- using filesystem3::symlink_file;
- using filesystem3::symlink_option;
- using filesystem3::symlink_status;
- using filesystem3::system_complete;
- using filesystem3::temp_directory_path;
- using filesystem3::type_present;
- using filesystem3::type_unknown;
- using filesystem3::unique_path;
-# ifndef BOOST_FILESYSTEM_NO_DEPRECATED
- using filesystem3::is_regular;
- using filesystem3::status_unknown;
- using filesystem3::symbolic_link_exists;
- //using filesystem3::wdirectory_iterator;
- //using filesystem3::wdirectory_entry;
-# endif
- namespace detail
- {
- using filesystem3::detail::possible_large_file_size_support;
- }
- }
-}
-
-#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
-#endif // BOOST_FILESYSTEM3_OPERATIONS_HPP