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Diffstat (limited to '3rdParty/Boost/src/libs/filesystem/src/operations.cpp')
-rw-r--r--3rdParty/Boost/src/libs/filesystem/src/operations.cpp2228
1 files changed, 2228 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/libs/filesystem/src/operations.cpp b/3rdParty/Boost/src/libs/filesystem/src/operations.cpp
new file mode 100644
index 0000000..16a336f
--- /dev/null
+++ b/3rdParty/Boost/src/libs/filesystem/src/operations.cpp
@@ -0,0 +1,2228 @@
+// operations.cpp --------------------------------------------------------------------//
+
+// Copyright 2002-2009 Beman Dawes
+// Copyright 2001 Dietmar Kuehl
+
+// Distributed under the Boost Software License, Version 1.0.
+// See http://www.boost.org/LICENSE_1_0.txt
+
+// See library home page at http://www.boost.org/libs/filesystem
+
+//--------------------------------------------------------------------------------------//
+
+// define 64-bit offset macros BEFORE including boost/config.hpp (see ticket #5355)
+#if !(defined(__HP_aCC) && defined(_ILP32) && !defined(_STATVFS_ACPP_PROBLEMS_FIXED))
+#define _FILE_OFFSET_BITS 64 // at worst, these defines may have no effect,
+#endif
+#if !defined(__PGI)
+#define __USE_FILE_OFFSET64 // but that is harmless on Windows and on POSIX
+ // 64-bit systems or on 32-bit systems which don't have files larger
+ // than can be represented by a traditional POSIX/UNIX off_t type.
+ // OTOH, defining them should kick in 64-bit off_t's (and thus
+ // st_size)on 32-bit systems that provide the Large File
+ // Support (LFS)interface, such as Linux, Solaris, and IRIX.
+ // The defines are given before any headers are included to
+ // ensure that they are available to all included headers.
+ // That is required at least on Solaris, and possibly on other
+ // systems as well.
+#else
+#define _FILE_OFFSET_BITS 64
+#endif
+
+// define BOOST_FILESYSTEM_SOURCE so that <boost/filesystem/config.hpp> knows
+// the library is being built (possibly exporting rather than importing code)
+#define BOOST_FILESYSTEM_SOURCE
+
+#ifndef BOOST_SYSTEM_NO_DEPRECATED
+# define BOOST_SYSTEM_NO_DEPRECATED
+#endif
+
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# define _POSIX_PTHREAD_SEMANTICS // Sun readdir_r()needs this
+#endif
+
+#include <boost/filesystem/operations.hpp>
+#include <boost/scoped_array.hpp>
+#include <boost/detail/workaround.hpp>
+#include <vector>
+#include <cstdlib> // for malloc, free
+#include <cstring>
+#include <cstdio> // for remove, rename
+#if defined(__QNXNTO__) // see ticket #5355
+# include <stdio.h>
+#endif
+#include <cerrno>
+
+#ifdef BOOST_FILEYSTEM_INCLUDE_IOSTREAM
+# include <iostream>
+#endif
+
+namespace fs = boost::filesystem;
+using boost::filesystem::path;
+using boost::filesystem::filesystem_error;
+using boost::filesystem::perms;
+using boost::system::error_code;
+using boost::system::error_category;
+using boost::system::system_category;
+using std::string;
+using std::wstring;
+
+# ifdef BOOST_POSIX_API
+
+ const fs::path dot_path(".");
+ const fs::path dot_dot_path("..");
+# include <sys/types.h>
+# include <sys/stat.h>
+# if !defined(__APPLE__) && !defined(__OpenBSD__)
+# include <sys/statvfs.h>
+# define BOOST_STATVFS statvfs
+# define BOOST_STATVFS_F_FRSIZE vfs.f_frsize
+# else
+# ifdef __OpenBSD__
+# include <sys/param.h>
+# endif
+# include <sys/mount.h>
+# define BOOST_STATVFS statfs
+# define BOOST_STATVFS_F_FRSIZE static_cast<boost::uintmax_t>(vfs.f_bsize)
+# endif
+# include <dirent.h>
+# include <unistd.h>
+# include <fcntl.h>
+# include <utime.h>
+# include "limits.h"
+
+# else // BOOST_WINDOW_API
+
+ const fs::path dot_path(L".");
+ const fs::path dot_dot_path(L"..");
+# if (defined(__MINGW32__) || defined(__CYGWIN__)) && !defined(WINVER)
+ // Versions of MinGW or Cygwin that support Filesystem V3 support at least WINVER 0x501.
+ // See MinGW's windef.h
+# define WINVER 0x501
+# endif
+# include <io.h>
+# include <windows.h>
+# include <winnt.h>
+# if !defined(_WIN32_WINNT)
+# define _WIN32_WINNT 0x0500
+# endif
+# if defined(__BORLANDC__) || defined(__MWERKS__)
+# if defined(__BORLANDC__)
+ using std::time_t;
+# endif
+# include <utime.h>
+# else
+# include <sys/utime.h>
+# endif
+
+// REPARSE_DATA_BUFFER related definitions are found in ntifs.h, which is part of the
+// Windows Device Driver Kit. Since that's inconvenient, the definitions are provided
+// here. See http://msdn.microsoft.com/en-us/library/ms791514.aspx
+
+#if !defined(REPARSE_DATA_BUFFER_HEADER_SIZE) // mingw winnt.h does provide the defs
+
+#define SYMLINK_FLAG_RELATIVE 1
+
+typedef struct _REPARSE_DATA_BUFFER {
+ ULONG ReparseTag;
+ USHORT ReparseDataLength;
+ USHORT Reserved;
+ union {
+ struct {
+ USHORT SubstituteNameOffset;
+ USHORT SubstituteNameLength;
+ USHORT PrintNameOffset;
+ USHORT PrintNameLength;
+ ULONG Flags;
+ WCHAR PathBuffer[1];
+ /* Example of distinction between substitute and print names:
+ mklink /d ldrive c:\
+ SubstituteName: c:\\??\
+ PrintName: c:\
+ */
+ } SymbolicLinkReparseBuffer;
+ struct {
+ USHORT SubstituteNameOffset;
+ USHORT SubstituteNameLength;
+ USHORT PrintNameOffset;
+ USHORT PrintNameLength;
+ WCHAR PathBuffer[1];
+ } MountPointReparseBuffer;
+ struct {
+ UCHAR DataBuffer[1];
+ } GenericReparseBuffer;
+ };
+} REPARSE_DATA_BUFFER, *PREPARSE_DATA_BUFFER;
+
+#define REPARSE_DATA_BUFFER_HEADER_SIZE \
+ FIELD_OFFSET(REPARSE_DATA_BUFFER, GenericReparseBuffer)
+
+#endif
+
+#ifndef MAXIMUM_REPARSE_DATA_BUFFER_SIZE
+#define MAXIMUM_REPARSE_DATA_BUFFER_SIZE ( 16 * 1024 )
+#endif
+
+# ifndef FSCTL_GET_REPARSE_POINT
+# define FSCTL_GET_REPARSE_POINT 0x900a8
+# endif
+
+# ifndef IO_REPARSE_TAG_SYMLINK
+# define IO_REPARSE_TAG_SYMLINK (0xA000000CL)
+# endif
+
+# endif // BOOST_WINDOWS_API
+
+// BOOST_FILESYSTEM_STATUS_CACHE enables file_status cache in
+// dir_itr_increment. The config tests are placed here because some of the
+// macros being tested come from dirent.h.
+//
+// TODO: find out what macros indicate dirent::d_type present in more libraries
+# if defined(BOOST_WINDOWS_API)\
+ || defined(_DIRENT_HAVE_D_TYPE)// defined by GNU C library if d_type present
+# define BOOST_FILESYSTEM_STATUS_CACHE
+# endif
+
+// POSIX/Windows macros ----------------------------------------------------//
+
+// Portions of the POSIX and Windows API's are very similar, except for name,
+// order of arguments, and meaning of zero/non-zero returns. The macros below
+// abstract away those differences. They follow Windows naming and order of
+// arguments, and return true to indicate no error occurred. [POSIX naming,
+// order of arguments, and meaning of return were followed initially, but
+// found to be less clear and cause more coding errors.]
+
+# if defined(BOOST_POSIX_API)
+
+// POSIX uses a 0 return to indicate success
+# define BOOST_ERRNO errno
+# define BOOST_SET_CURRENT_DIRECTORY(P)(::chdir(P)== 0)
+# define BOOST_CREATE_DIRECTORY(P)(::mkdir(P, S_IRWXU|S_IRWXG|S_IRWXO)== 0)
+# define BOOST_CREATE_HARD_LINK(F,T)(::link(T, F)== 0)
+# define BOOST_CREATE_SYMBOLIC_LINK(F,T,Flag)(::symlink(T, F)== 0)
+# define BOOST_REMOVE_DIRECTORY(P)(::rmdir(P)== 0)
+# define BOOST_DELETE_FILE(P)(::unlink(P)== 0)
+# define BOOST_COPY_DIRECTORY(F,T)(!(::stat(from.c_str(), &from_stat)!= 0\
+ || ::mkdir(to.c_str(),from_stat.st_mode)!= 0))
+# define BOOST_COPY_FILE(F,T,FailIfExistsBool)copy_file_api(F, T, FailIfExistsBool)
+# define BOOST_MOVE_FILE(OLD,NEW)(::rename(OLD, NEW)== 0)
+# define BOOST_RESIZE_FILE(P,SZ)(::truncate(P, SZ)== 0)
+
+# define BOOST_ERROR_NOT_SUPPORTED ENOSYS
+# define BOOST_ERROR_ALREADY_EXISTS EEXIST
+
+# else // BOOST_WINDOWS_API
+
+// Windows uses a non-0 return to indicate success
+# define BOOST_ERRNO ::GetLastError()
+# define BOOST_SET_CURRENT_DIRECTORY(P)(::SetCurrentDirectoryW(P)!= 0)
+# define BOOST_CREATE_DIRECTORY(P)(::CreateDirectoryW(P, 0)!= 0)
+# define BOOST_CREATE_HARD_LINK(F,T)(create_hard_link_api(F, T, 0)!= 0)
+# define BOOST_CREATE_SYMBOLIC_LINK(F,T,Flag)(create_symbolic_link_api(F, T, Flag)!= 0)
+# define BOOST_REMOVE_DIRECTORY(P)(::RemoveDirectoryW(P)!= 0)
+# define BOOST_DELETE_FILE(P)(::DeleteFileW(P)!= 0)
+# define BOOST_COPY_DIRECTORY(F,T)(::CreateDirectoryExW(F, T, 0)!= 0)
+# define BOOST_COPY_FILE(F,T,FailIfExistsBool)(::CopyFileW(F, T, FailIfExistsBool)!= 0)
+# define BOOST_MOVE_FILE(OLD,NEW)(::MoveFileExW(OLD, NEW, MOVEFILE_REPLACE_EXISTING|MOVEFILE_COPY_ALLOWED)!= 0)
+# define BOOST_RESIZE_FILE(P,SZ)(resize_file_api(P, SZ)!= 0)
+# define BOOST_READ_SYMLINK(P,T)
+
+# define BOOST_ERROR_ALREADY_EXISTS ERROR_ALREADY_EXISTS
+# define BOOST_ERROR_NOT_SUPPORTED ERROR_NOT_SUPPORTED
+
+# endif
+
+//--------------------------------------------------------------------------------------//
+// //
+// helpers (all operating systems) //
+// //
+//--------------------------------------------------------------------------------------//
+
+namespace
+{
+
+ fs::file_type query_file_type(const path& p, error_code* ec);
+
+ boost::filesystem::directory_iterator end_dir_itr;
+
+ const std::size_t buf_size(128);
+ const error_code ok;
+
+ bool error(bool was_error, error_code* ec, const string& message)
+ {
+ if (!was_error)
+ {
+ if (ec != 0) ec->clear();
+ }
+ else
+ { // error
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(message,
+ error_code(BOOST_ERRNO, system_category())));
+ else
+ ec->assign(BOOST_ERRNO, system_category());
+ }
+ return was_error;
+ }
+
+ bool error(bool was_error, const path& p, error_code* ec, const string& message)
+ {
+ if (!was_error)
+ {
+ if (ec != 0) ec->clear();
+ }
+ else
+ { // error
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(message,
+ p, error_code(BOOST_ERRNO, system_category())));
+ else
+ ec->assign(BOOST_ERRNO, system_category());
+ }
+ return was_error;
+ }
+
+ bool error(bool was_error, const path& p1, const path& p2, error_code* ec,
+ const string& message)
+ {
+ if (!was_error)
+ {
+ if (ec != 0) ec->clear();
+ }
+ else
+ { // error
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(message,
+ p1, p2, error_code(BOOST_ERRNO, system_category())));
+ else
+ ec->assign(BOOST_ERRNO, system_category());
+ }
+ return was_error;
+ }
+
+ bool error(bool was_error, const error_code& result,
+ const path& p, error_code* ec, const string& message)
+ // Overwrites ec if there has already been an error
+ {
+ if (!was_error)
+ {
+ if (ec != 0) ec->clear();
+ }
+ else
+ { // error
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(message, p, result));
+ else
+ *ec = result;
+ }
+ return was_error;
+ }
+
+ bool error(bool was_error, const error_code& result,
+ const path& p1, const path& p2, error_code* ec, const string& message)
+ // Overwrites ec if there has already been an error
+ {
+ if (!was_error)
+ {
+ if (ec != 0) ec->clear();
+ }
+ else
+ { // error
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(message, p1, p2, result));
+ else
+ *ec = result;
+ }
+ return was_error;
+ }
+
+ bool is_empty_directory(const path& p)
+ {
+ return fs::directory_iterator(p)== end_dir_itr;
+ }
+
+ bool remove_directory(const path& p) // true if succeeds
+ { return BOOST_REMOVE_DIRECTORY(p.c_str()); }
+
+ bool remove_file(const path& p) // true if succeeds
+ { return BOOST_DELETE_FILE(p.c_str()); }
+
+ // called by remove and remove_all_aux
+ bool remove_file_or_directory(const path& p, fs::file_type type, error_code* ec)
+ // return true if file removed, false if not removed
+ {
+ if (type == fs::file_not_found)
+ {
+ if (ec != 0) ec->clear();
+ return false;
+ }
+
+ if (type == fs::directory_file
+# ifdef BOOST_WINDOWS_API
+ || type == fs::_detail_directory_symlink
+# endif
+ )
+ {
+ if (error(!remove_directory(p), p, ec, "boost::filesystem::remove"))
+ return false;
+ }
+ else
+ {
+ if (error(!remove_file(p), p, ec, "boost::filesystem::remove"))
+ return false;
+ }
+ return true;
+ }
+
+ boost::uintmax_t remove_all_aux(const path& p, fs::file_type type,
+ error_code* ec)
+ {
+ boost::uintmax_t count = 1;
+
+ if (type == fs::directory_file) // but not a directory symlink
+ {
+ for (fs::directory_iterator itr(p);
+ itr != end_dir_itr; ++itr)
+ {
+ fs::file_type tmp_type = query_file_type(itr->path(), ec);
+ if (ec != 0 && *ec)
+ return count;
+ count += remove_all_aux(itr->path(), tmp_type, ec);
+ }
+ }
+ remove_file_or_directory(p, type, ec);
+ return count;
+ }
+
+#ifdef BOOST_POSIX_API
+
+//--------------------------------------------------------------------------------------//
+// //
+// POSIX-specific helpers //
+// //
+//--------------------------------------------------------------------------------------//
+
+ const char dot = '.';
+
+ bool not_found_error(int errval)
+ {
+ return errno == ENOENT || errno == ENOTDIR;
+ }
+
+ bool // true if ok
+ copy_file_api(const std::string& from_p,
+ const std::string& to_p, bool fail_if_exists)
+ {
+ const std::size_t buf_sz = 32768;
+ boost::scoped_array<char> buf(new char [buf_sz]);
+ int infile=-1, outfile=-1; // -1 means not open
+
+ // bug fixed: code previously did a stat()on the from_file first, but that
+ // introduced a gratuitous race condition; the stat()is now done after the open()
+
+ if ((infile = ::open(from_p.c_str(), O_RDONLY))< 0)
+ { return false; }
+
+ struct stat from_stat;
+ if (::stat(from_p.c_str(), &from_stat)!= 0)
+ {
+ ::close(infile);
+ return false;
+ }
+
+ int oflag = O_CREAT | O_WRONLY | O_TRUNC;
+ if (fail_if_exists)
+ oflag |= O_EXCL;
+ if ((outfile = ::open(to_p.c_str(), oflag, from_stat.st_mode))< 0)
+ {
+ int open_errno = errno;
+ BOOST_ASSERT(infile >= 0);
+ ::close(infile);
+ errno = open_errno;
+ return false;
+ }
+
+ ssize_t sz, sz_read=1, sz_write;
+ while (sz_read > 0
+ && (sz_read = ::read(infile, buf.get(), buf_sz))> 0)
+ {
+ // Allow for partial writes - see Advanced Unix Programming (2nd Ed.),
+ // Marc Rochkind, Addison-Wesley, 2004, page 94
+ sz_write = 0;
+ do
+ {
+ if ((sz = ::write(outfile, buf.get() + sz_write,
+ sz_read - sz_write))< 0)
+ {
+ sz_read = sz; // cause read loop termination
+ break; // and error to be thrown after closes
+ }
+ sz_write += sz;
+ } while (sz_write < sz_read);
+ }
+
+ if (::close(infile)< 0)sz_read = -1;
+ if (::close(outfile)< 0)sz_read = -1;
+
+ return sz_read >= 0;
+ }
+
+ inline fs::file_type query_file_type(const path& p, error_code* ec)
+ {
+ return fs::detail::symlink_status(p, ec).type();
+ }
+
+# else
+
+//--------------------------------------------------------------------------------------//
+// //
+// Windows-specific helpers //
+// //
+//--------------------------------------------------------------------------------------//
+
+ const wchar_t dot = L'.';
+
+ bool not_found_error(int errval)
+ {
+ return errval == ERROR_FILE_NOT_FOUND
+ || errval == ERROR_PATH_NOT_FOUND
+ || errval == ERROR_INVALID_NAME // "tools/jam/src/:sys:stat.h", "//foo"
+ || errval == ERROR_INVALID_DRIVE // USB card reader with no card inserted
+ || errval == ERROR_NOT_READY // CD/DVD drive with no disc inserted
+ || errval == ERROR_INVALID_PARAMETER // ":sys:stat.h"
+ || errval == ERROR_BAD_PATHNAME // "//nosuch" on Win64
+ || errval == ERROR_BAD_NETPATH; // "//nosuch" on Win32
+ }
+
+// some distributions of mingw as early as GLIBCXX__ 20110325 have _stricmp, but the
+// offical 4.6.2 release with __GLIBCXX__ 20111026 doesn't. Play it safe for now, and
+// only use _stricmp if _MSC_VER is defined
+#if defined(_MSC_VER) // || (defined(__GLIBCXX__) && __GLIBCXX__ >= 20110325)
+# define BOOST_FILESYSTEM_STRICMP _stricmp
+#else
+# define BOOST_FILESYSTEM_STRICMP strcmp
+#endif
+
+ perms make_permissions(const path& p, DWORD attr)
+ {
+ perms prms = fs::owner_read | fs::group_read | fs::others_read;
+ if ((attr & FILE_ATTRIBUTE_READONLY) == 0)
+ prms |= fs::owner_write | fs::group_write | fs::others_write;
+ if (BOOST_FILESYSTEM_STRICMP(p.extension().string().c_str(), ".exe") == 0
+ || BOOST_FILESYSTEM_STRICMP(p.extension().string().c_str(), ".com") == 0
+ || BOOST_FILESYSTEM_STRICMP(p.extension().string().c_str(), ".bat") == 0
+ || BOOST_FILESYSTEM_STRICMP(p.extension().string().c_str(), ".cmd") == 0)
+ prms |= fs::owner_exe | fs::group_exe | fs::others_exe;
+ return prms;
+ }
+
+ // these constants come from inspecting some Microsoft sample code
+ std::time_t to_time_t(const FILETIME & ft)
+ {
+ __int64 t = (static_cast<__int64>(ft.dwHighDateTime)<< 32)
+ + ft.dwLowDateTime;
+# if !defined(BOOST_MSVC) || BOOST_MSVC > 1300 // > VC++ 7.0
+ t -= 116444736000000000LL;
+# else
+ t -= 116444736000000000;
+# endif
+ t /= 10000000;
+ return static_cast<std::time_t>(t);
+ }
+
+ void to_FILETIME(std::time_t t, FILETIME & ft)
+ {
+ __int64 temp = t;
+ temp *= 10000000;
+# if !defined(BOOST_MSVC) || BOOST_MSVC > 1300 // > VC++ 7.0
+ temp += 116444736000000000LL;
+# else
+ temp += 116444736000000000;
+# endif
+ ft.dwLowDateTime = static_cast<DWORD>(temp);
+ ft.dwHighDateTime = static_cast<DWORD>(temp >> 32);
+ }
+
+ // Thanks to Jeremy Maitin-Shepard for much help and for permission to
+ // base the equivalent()implementation on portions of his
+ // file-equivalence-win32.cpp experimental code.
+
+ struct handle_wrapper
+ {
+ HANDLE handle;
+ handle_wrapper(HANDLE h)
+ : handle(h){}
+ ~handle_wrapper()
+ {
+ if (handle != INVALID_HANDLE_VALUE)
+ ::CloseHandle(handle);
+ }
+ };
+
+ HANDLE create_file_handle(const path& p, DWORD dwDesiredAccess,
+ DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes,
+ DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes,
+ HANDLE hTemplateFile)
+ {
+ return ::CreateFileW(p.c_str(), dwDesiredAccess, dwShareMode,
+ lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes,
+ hTemplateFile);
+ }
+
+ bool is_reparse_point_a_symlink(const path& p)
+ {
+ handle_wrapper h(create_file_handle(p, FILE_READ_EA,
+ FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, NULL));
+ if (h.handle == INVALID_HANDLE_VALUE)
+ return false;
+
+ boost::scoped_array<char> buf(new char [MAXIMUM_REPARSE_DATA_BUFFER_SIZE]);
+
+ // Query the reparse data
+ DWORD dwRetLen;
+ BOOL result = ::DeviceIoControl(h.handle, FSCTL_GET_REPARSE_POINT, NULL, 0, buf.get(),
+ MAXIMUM_REPARSE_DATA_BUFFER_SIZE, &dwRetLen, NULL);
+ if (!result) return false;
+
+ return reinterpret_cast<const REPARSE_DATA_BUFFER*>(buf.get())
+ ->ReparseTag == IO_REPARSE_TAG_SYMLINK;
+ }
+
+ inline std::size_t get_full_path_name(
+ const path& src, std::size_t len, wchar_t* buf, wchar_t** p)
+ {
+ return static_cast<std::size_t>(
+ ::GetFullPathNameW(src.c_str(), static_cast<DWORD>(len), buf, p));
+ }
+
+ fs::file_status process_status_failure(const path& p, error_code* ec)
+ {
+ int errval(::GetLastError());
+ if (ec != 0) // always report errval, even though some
+ ec->assign(errval, system_category()); // errval values are not status_errors
+
+ if (not_found_error(errval))
+ {
+ return fs::file_status(fs::file_not_found, fs::no_perms);
+ }
+ else if ((errval == ERROR_SHARING_VIOLATION))
+ {
+ return fs::file_status(fs::type_unknown);
+ }
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error("boost::filesystem::status",
+ p, error_code(errval, system_category())));
+ return fs::file_status(fs::status_error);
+ }
+
+ // differs from symlink_status() in that directory symlinks are reported as
+ // _detail_directory_symlink, as required on Windows by remove() and its helpers.
+ fs::file_type query_file_type(const path& p, error_code* ec)
+ {
+ DWORD attr(::GetFileAttributesW(p.c_str()));
+ if (attr == 0xFFFFFFFF)
+ {
+ return process_status_failure(p, ec).type();
+ }
+
+ if (ec != 0) ec->clear();
+
+ if (attr & FILE_ATTRIBUTE_REPARSE_POINT)
+ {
+ if (is_reparse_point_a_symlink(p))
+ return (attr & FILE_ATTRIBUTE_DIRECTORY)
+ ? fs::_detail_directory_symlink
+ : fs::symlink_file;
+ return fs::reparse_file;
+ }
+
+ return (attr & FILE_ATTRIBUTE_DIRECTORY)
+ ? fs::directory_file
+ : fs::regular_file;
+ }
+
+ BOOL resize_file_api(const wchar_t* p, boost::uintmax_t size)
+ {
+ HANDLE handle = CreateFileW(p, GENERIC_WRITE, 0, 0, OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL, 0);
+ LARGE_INTEGER sz;
+ sz.QuadPart = size;
+ return handle != INVALID_HANDLE_VALUE
+ && ::SetFilePointerEx(handle, sz, 0, FILE_BEGIN)
+ && ::SetEndOfFile(handle)
+ && ::CloseHandle(handle);
+ }
+
+ // Windows kernel32.dll functions that may or may not be present
+ // must be accessed through pointers
+
+ typedef BOOL (WINAPI *PtrCreateHardLinkW)(
+ /*__in*/ LPCWSTR lpFileName,
+ /*__in*/ LPCWSTR lpExistingFileName,
+ /*__reserved*/ LPSECURITY_ATTRIBUTES lpSecurityAttributes
+ );
+
+ PtrCreateHardLinkW create_hard_link_api = PtrCreateHardLinkW(
+ ::GetProcAddress(
+ ::GetModuleHandle(TEXT("kernel32.dll")), "CreateHardLinkW"));
+
+ typedef BOOLEAN (WINAPI *PtrCreateSymbolicLinkW)(
+ /*__in*/ LPCWSTR lpSymlinkFileName,
+ /*__in*/ LPCWSTR lpTargetFileName,
+ /*__in*/ DWORD dwFlags
+ );
+
+ PtrCreateSymbolicLinkW create_symbolic_link_api = PtrCreateSymbolicLinkW(
+ ::GetProcAddress(
+ ::GetModuleHandle(TEXT("kernel32.dll")), "CreateSymbolicLinkW"));
+
+#endif
+
+//#ifdef BOOST_WINDOWS_API
+//
+//
+// inline bool get_free_disk_space(const std::wstring& ph,
+// PULARGE_INTEGER avail, PULARGE_INTEGER total, PULARGE_INTEGER free)
+// { return ::GetDiskFreeSpaceExW(ph.c_str(), avail, total, free)!= 0; }
+//
+//#endif
+
+} // unnamed namespace
+
+//--------------------------------------------------------------------------------------//
+// //
+// operations functions declared in operations.hpp //
+// in alphabetic order //
+// //
+//--------------------------------------------------------------------------------------//
+
+namespace boost
+{
+namespace filesystem
+{
+
+ BOOST_FILESYSTEM_DECL
+ path absolute(const path& p, const path& base)
+ {
+// if ( p.empty() || p.is_absolute() )
+// return p;
+// // recursively calling absolute is sub-optimal, but is simple
+// path abs_base(base.is_absolute() ? base : absolute(base));
+//# ifdef BOOST_WINDOWS_API
+// if (p.has_root_directory())
+// return abs_base.root_name() / p;
+// // !p.has_root_directory
+// if (p.has_root_name())
+// return p.root_name()
+// / abs_base.root_directory() / abs_base.relative_path() / p.relative_path();
+// // !p.has_root_name()
+//# endif
+// return abs_base / p;
+
+ // recursively calling absolute is sub-optimal, but is sure and simple
+ path abs_base(base.is_absolute() ? base : absolute(base));
+
+ // store expensive to compute values that are needed multiple times
+ path p_root_name (p.root_name());
+ path base_root_name (abs_base.root_name());
+ path p_root_directory (p.root_directory());
+
+ if (p.empty())
+ return abs_base;
+
+ if (!p_root_name.empty()) // p.has_root_name()
+ {
+ if (p_root_directory.empty()) // !p.has_root_directory()
+ return p_root_name / abs_base.root_directory()
+ / abs_base.relative_path() / p.relative_path();
+ // p is absolute, so fall through to return p at end of block
+ }
+
+ else if (!p_root_directory.empty()) // p.has_root_directory()
+ {
+# ifdef BOOST_POSIX_API
+ // POSIX can have root name it it is a network path
+ if (base_root_name.empty()) // !abs_base.has_root_name()
+ return p;
+# endif
+ return base_root_name / p;
+ }
+
+ else
+ {
+ return abs_base / p;
+ }
+
+ return p; // p.is_absolute() is true
+ }
+
+namespace detail
+{
+ BOOST_FILESYSTEM_DECL bool possible_large_file_size_support()
+ {
+# ifdef BOOST_POSIX_API
+ struct stat lcl_stat;
+ return sizeof(lcl_stat.st_size)> 4;
+# else
+ return true;
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ path canonical(const path& p, const path& base, system::error_code* ec)
+ {
+ path source (p.is_absolute() ? p : absolute(p, base));
+ path result;
+
+ system::error_code local_ec;
+ file_status stat (status(source, local_ec));
+
+ if (stat.type() == fs::file_not_found)
+ {
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(
+ "boost::filesystem::canonical", source,
+ error_code(system::errc::no_such_file_or_directory, system::generic_category())));
+ ec->assign(system::errc::no_such_file_or_directory, system::generic_category());
+ return result;
+ }
+ else if (local_ec)
+ {
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(
+ "boost::filesystem::canonical", source, local_ec));
+ *ec = local_ec;
+ return result;
+ }
+
+ bool scan (true);
+ while (scan)
+ {
+ scan = false;
+ result.clear();
+ for (path::iterator itr = source.begin(); itr != source.end(); ++itr)
+ {
+ if (*itr == dot_path)
+ continue;
+ if (*itr == dot_dot_path)
+ {
+ result.remove_filename();
+ continue;
+ }
+
+ result /= *itr;
+
+ bool is_sym (is_symlink(detail::symlink_status(result, ec)));
+ if (ec && *ec)
+ return path();
+
+ if (is_sym)
+ {
+ path link(detail::read_symlink(result, ec));
+ if (ec && *ec)
+ return path();
+ result.remove_filename();
+
+ if (link.is_absolute())
+ {
+ for (++itr; itr != source.end(); ++itr)
+ link /= *itr;
+ source = link;
+ }
+ else // link is relative
+ {
+ path new_source(result);
+ new_source /= link;
+ for (++itr; itr != source.end(); ++itr)
+ new_source /= *itr;
+ source = new_source;
+ }
+ scan = true; // symlink causes scan to be restarted
+ break;
+ }
+ }
+ }
+ if (ec != 0)
+ ec->clear();
+ BOOST_ASSERT_MSG(result.is_absolute(), "canonical() implementation error; please report");
+ return result;
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void copy(const path& from, const path& to, system::error_code* ec)
+ {
+ file_status s(symlink_status(from, *ec));
+ if (ec != 0 && *ec) return;
+
+ if(is_symlink(s))
+ {
+ copy_symlink(from, to, *ec);
+ }
+ else if(is_directory(s))
+ {
+ copy_directory(from, to, *ec);
+ }
+ else if(is_regular_file(s))
+ {
+ copy_file(from, to, copy_option::fail_if_exists, *ec);
+ }
+ else
+ {
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error("boost::filesystem::copy",
+ from, to, error_code(BOOST_ERROR_NOT_SUPPORTED, system_category())));
+ ec->assign(BOOST_ERROR_NOT_SUPPORTED, system_category());
+ }
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void copy_directory(const path& from, const path& to, system::error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+ struct stat from_stat;
+# endif
+ error(!BOOST_COPY_DIRECTORY(from.c_str(), to.c_str()),
+ from, to, ec, "boost::filesystem::copy_directory");
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void copy_file(const path& from, const path& to,
+ BOOST_SCOPED_ENUM(copy_option)option,
+ error_code* ec)
+ {
+ error(!BOOST_COPY_FILE(from.c_str(), to.c_str(),
+ option == copy_option::fail_if_exists),
+ from, to, ec, "boost::filesystem::copy_file");
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void copy_symlink(const path& existing_symlink, const path& new_symlink,
+ system::error_code* ec)
+ {
+# if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0600
+ error(true, error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()),
+ new_symlink, existing_symlink, ec,
+ "boost::filesystem::copy_symlink");
+
+# else // modern Windows or BOOST_POSIX_API
+ path p(read_symlink(existing_symlink, ec));
+ if (ec != 0 && *ec) return;
+ create_symlink(p, new_symlink, ec);
+
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ bool create_directories(const path& p, system::error_code* ec)
+ {
+ error_code local_ec;
+ file_status p_status = status(p, local_ec);
+
+ if (p_status.type() == directory_file)
+ {
+ if (ec != 0)
+ ec->clear();
+ return false;
+ }
+
+ path parent = p.parent_path();
+ if (!parent.empty())
+ {
+ // determine if the parent exists
+ file_status parent_status = status(parent, local_ec);
+
+ // if the parent does not exist, create the parent
+ if (parent_status.type() == file_not_found)
+ {
+ create_directories(parent, local_ec);
+ if (local_ec)
+ {
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(
+ "boost::filesystem::create_directories", parent, local_ec));
+ else
+ *ec = local_ec;
+ return false;
+ }
+ }
+ }
+
+ // create the directory
+ return create_directory(p, ec);
+ }
+
+ BOOST_FILESYSTEM_DECL
+ bool create_directory(const path& p, error_code* ec)
+ {
+ if (BOOST_CREATE_DIRECTORY(p.c_str()))
+ {
+ if (ec != 0)
+ ec->clear();
+ return true;
+ }
+
+ // attempt to create directory failed
+ int errval(BOOST_ERRNO); // save reason for failure
+ error_code dummy;
+ if (errval == BOOST_ERROR_ALREADY_EXISTS && is_directory(p, dummy))
+ {
+ if (ec != 0)
+ ec->clear();
+ return false;
+ }
+
+ // attempt to create directory failed && it doesn't already exist
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error("boost::filesystem::create_directory",
+ p, error_code(errval, system_category())));
+ else
+ ec->assign(errval, system_category());
+ return false;
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void create_directory_symlink(const path& to, const path& from,
+ system::error_code* ec)
+ {
+# if defined(BOOST_WINDOWS_API) && _WIN32_WINNT < 0x0600 // SDK earlier than Vista and Server 2008
+
+ error(true, error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()), to, from, ec,
+ "boost::filesystem::create_directory_symlink");
+# else
+
+# if defined(BOOST_WINDOWS_API) && _WIN32_WINNT >= 0x0600
+ // see if actually supported by Windows runtime dll
+ if (error(!create_symbolic_link_api,
+ error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()),
+ to, from, ec,
+ "boost::filesystem::create_directory_symlink"))
+ return;
+# endif
+
+ error(!BOOST_CREATE_SYMBOLIC_LINK(from.c_str(), to.c_str(), SYMBOLIC_LINK_FLAG_DIRECTORY),
+ to, from, ec, "boost::filesystem::create_directory_symlink");
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void create_hard_link(const path& to, const path& from, error_code* ec)
+ {
+
+# if defined(BOOST_WINDOWS_API) && _WIN32_WINNT < 0x0500 // SDK earlier than Win 2K
+
+ error(true, error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()), to, from, ec,
+ "boost::filesystem::create_hard_link");
+# else
+
+# if defined(BOOST_WINDOWS_API) && _WIN32_WINNT >= 0x0500
+ // see if actually supported by Windows runtime dll
+ if (error(!create_hard_link_api,
+ error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()),
+ to, from, ec,
+ "boost::filesystem::create_hard_link"))
+ return;
+# endif
+
+ error(!BOOST_CREATE_HARD_LINK(from.c_str(), to.c_str()), to, from, ec,
+ "boost::filesystem::create_hard_link");
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void create_symlink(const path& to, const path& from, error_code* ec)
+ {
+# if defined(BOOST_WINDOWS_API) && _WIN32_WINNT < 0x0600 // SDK earlier than Vista and Server 2008
+ error(true, error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()), to, from, ec,
+ "boost::filesystem::create_directory_symlink");
+# else
+
+# if defined(BOOST_WINDOWS_API) && _WIN32_WINNT >= 0x0600
+ // see if actually supported by Windows runtime dll
+ if (error(!create_symbolic_link_api,
+ error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()),
+ to, from, ec,
+ "boost::filesystem::create_symlink"))
+ return;
+# endif
+
+ error(!BOOST_CREATE_SYMBOLIC_LINK(from.c_str(), to.c_str(), 0),
+ to, from, ec, "boost::filesystem::create_symlink");
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ path current_path(error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+ path cur;
+ for (long path_max = 128;; path_max *=2)// loop 'til buffer large enough
+ {
+ boost::scoped_array<char>
+ buf(new char[static_cast<std::size_t>(path_max)]);
+ if (::getcwd(buf.get(), static_cast<std::size_t>(path_max))== 0)
+ {
+ if (error(errno != ERANGE
+ // bug in some versions of the Metrowerks C lib on the Mac: wrong errno set
+# if defined(__MSL__) && (defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__))
+ && errno != 0
+# endif
+ , ec, "boost::filesystem::current_path"))
+ {
+ break;
+ }
+ }
+ else
+ {
+ cur = buf.get();
+ if (ec != 0) ec->clear();
+ break;
+ }
+ }
+ return cur;
+
+# else
+ DWORD sz;
+ if ((sz = ::GetCurrentDirectoryW(0, NULL))== 0)sz = 1;
+ boost::scoped_array<path::value_type> buf(new path::value_type[sz]);
+ error(::GetCurrentDirectoryW(sz, buf.get())== 0, ec,
+ "boost::filesystem::current_path");
+ return path(buf.get());
+# endif
+ }
+
+
+ BOOST_FILESYSTEM_DECL
+ void current_path(const path& p, system::error_code* ec)
+ {
+ error(!BOOST_SET_CURRENT_DIRECTORY(p.c_str()),
+ p, ec, "boost::filesystem::current_path");
+ }
+
+ BOOST_FILESYSTEM_DECL
+ bool equivalent(const path& p1, const path& p2, system::error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+ struct stat s2;
+ int e2(::stat(p2.c_str(), &s2));
+ struct stat s1;
+ int e1(::stat(p1.c_str(), &s1));
+
+ if (e1 != 0 || e2 != 0)
+ {
+ // if one is invalid and the other isn't then they aren't equivalent,
+ // but if both are invalid then it is an error
+ error (e1 != 0 && e2 != 0, p1, p2, ec, "boost::filesystem::equivalent");
+ return false;
+ }
+
+ // both stats now known to be valid
+ return s1.st_dev == s2.st_dev && s1.st_ino == s2.st_ino
+ // According to the POSIX stat specs, "The st_ino and st_dev fields
+ // taken together uniquely identify the file within the system."
+ // Just to be sure, size and mod time are also checked.
+ && s1.st_size == s2.st_size && s1.st_mtime == s2.st_mtime;
+
+# else // Windows
+
+ // Note well: Physical location on external media is part of the
+ // equivalence criteria. If there are no open handles, physical location
+ // can change due to defragmentation or other relocations. Thus handles
+ // must be held open until location information for both paths has
+ // been retrieved.
+
+ // p2 is done first, so any error reported is for p1
+ handle_wrapper h2(
+ create_file_handle(
+ p2.c_str(),
+ 0,
+ FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
+ 0,
+ OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS,
+ 0));
+
+ handle_wrapper h1(
+ create_file_handle(
+ p1.c_str(),
+ 0,
+ FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
+ 0,
+ OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS,
+ 0));
+
+ if (h1.handle == INVALID_HANDLE_VALUE
+ || h2.handle == INVALID_HANDLE_VALUE)
+ {
+ // if one is invalid and the other isn't, then they aren't equivalent,
+ // but if both are invalid then it is an error
+ error(h1.handle == INVALID_HANDLE_VALUE
+ && h2.handle == INVALID_HANDLE_VALUE, p1, p2, ec,
+ "boost::filesystem::equivalent");
+ return false;
+ }
+
+ // at this point, both handles are known to be valid
+
+ BY_HANDLE_FILE_INFORMATION info1, info2;
+
+ if (error(!::GetFileInformationByHandle(h1.handle, &info1),
+ p1, p2, ec, "boost::filesystem::equivalent"))
+ return false;
+
+ if (error(!::GetFileInformationByHandle(h2.handle, &info2),
+ p1, p2, ec, "boost::filesystem::equivalent"))
+ return false;
+
+ // In theory, volume serial numbers are sufficient to distinguish between
+ // devices, but in practice VSN's are sometimes duplicated, so last write
+ // time and file size are also checked.
+ return
+ info1.dwVolumeSerialNumber == info2.dwVolumeSerialNumber
+ && info1.nFileIndexHigh == info2.nFileIndexHigh
+ && info1.nFileIndexLow == info2.nFileIndexLow
+ && info1.nFileSizeHigh == info2.nFileSizeHigh
+ && info1.nFileSizeLow == info2.nFileSizeLow
+ && info1.ftLastWriteTime.dwLowDateTime
+ == info2.ftLastWriteTime.dwLowDateTime
+ && info1.ftLastWriteTime.dwHighDateTime
+ == info2.ftLastWriteTime.dwHighDateTime;
+
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ boost::uintmax_t file_size(const path& p, error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+
+ struct stat path_stat;
+ if (error(::stat(p.c_str(), &path_stat)!= 0,
+ p, ec, "boost::filesystem::file_size"))
+ return static_cast<boost::uintmax_t>(-1);
+ if (error(!S_ISREG(path_stat.st_mode),
+ error_code(EPERM, system_category()),
+ p, ec, "boost::filesystem::file_size"))
+ return static_cast<boost::uintmax_t>(-1);
+
+ return static_cast<boost::uintmax_t>(path_stat.st_size);
+
+# else // Windows
+
+ // assume uintmax_t is 64-bits on all Windows compilers
+
+ WIN32_FILE_ATTRIBUTE_DATA fad;
+
+ if (error(::GetFileAttributesExW(p.c_str(), ::GetFileExInfoStandard, &fad)== 0,
+ p, ec, "boost::filesystem::file_size"))
+ return static_cast<boost::uintmax_t>(-1);
+
+ if (error((fad.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)!= 0,
+ error_code(ERROR_NOT_SUPPORTED, system_category()),
+ p, ec, "boost::filesystem::file_size"))
+ return static_cast<boost::uintmax_t>(-1);
+
+ return (static_cast<boost::uintmax_t>(fad.nFileSizeHigh)
+ << (sizeof(fad.nFileSizeLow)*8)) + fad.nFileSizeLow;
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ boost::uintmax_t hard_link_count(const path& p, system::error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+
+ struct stat path_stat;
+ return error(::stat(p.c_str(), &path_stat)!= 0,
+ p, ec, "boost::filesystem::hard_link_count")
+ ? 0
+ : static_cast<boost::uintmax_t>(path_stat.st_nlink);
+
+# else // Windows
+
+ // Link count info is only available through GetFileInformationByHandle
+ BY_HANDLE_FILE_INFORMATION info;
+ handle_wrapper h(
+ create_file_handle(p.c_str(), 0,
+ FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, 0,
+ OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0));
+ return
+ !error(h.handle == INVALID_HANDLE_VALUE,
+ p, ec, "boost::filesystem::hard_link_count")
+ && !error(::GetFileInformationByHandle(h.handle, &info)== 0,
+ p, ec, "boost::filesystem::hard_link_count")
+ ? info.nNumberOfLinks
+ : 0;
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ path initial_path(error_code* ec)
+ {
+ static path init_path;
+ if (init_path.empty())
+ init_path = current_path(ec);
+ else if (ec != 0) ec->clear();
+ return init_path;
+ }
+
+ BOOST_FILESYSTEM_DECL
+ bool is_empty(const path& p, system::error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+
+ struct stat path_stat;
+ if (error(::stat(p.c_str(), &path_stat)!= 0,
+ p, ec, "boost::filesystem::is_empty"))
+ return false;
+ return S_ISDIR(path_stat.st_mode)
+ ? is_empty_directory(p)
+ : path_stat.st_size == 0;
+# else
+
+ WIN32_FILE_ATTRIBUTE_DATA fad;
+ if (error(::GetFileAttributesExW(p.c_str(), ::GetFileExInfoStandard, &fad)== 0,
+ p, ec, "boost::filesystem::is_empty"))
+ return false;
+
+ if (ec != 0) ec->clear();
+ return
+ (fad.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+ ? is_empty_directory(p)
+ : (!fad.nFileSizeHigh && !fad.nFileSizeLow);
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ std::time_t last_write_time(const path& p, system::error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+
+ struct stat path_stat;
+ if (error(::stat(p.c_str(), &path_stat)!= 0,
+ p, ec, "boost::filesystem::last_write_time"))
+ return std::time_t(-1);
+ return path_stat.st_mtime;
+
+# else
+
+ handle_wrapper hw(
+ create_file_handle(p.c_str(), 0,
+ FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, 0,
+ OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0));
+
+ if (error(hw.handle == INVALID_HANDLE_VALUE,
+ p, ec, "boost::filesystem::last_write_time"))
+ return std::time_t(-1);
+
+ FILETIME lwt;
+
+ if (error(::GetFileTime(hw.handle, 0, 0, &lwt)== 0,
+ p, ec, "boost::filesystem::last_write_time"))
+ return std::time_t(-1);
+
+ return to_time_t(lwt);
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void last_write_time(const path& p, const std::time_t new_time,
+ system::error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+
+ struct stat path_stat;
+ if (error(::stat(p.c_str(), &path_stat)!= 0,
+ p, ec, "boost::filesystem::last_write_time"))
+ return;
+ ::utimbuf buf;
+ buf.actime = path_stat.st_atime; // utime()updates access time too:-(
+ buf.modtime = new_time;
+ error(::utime(p.c_str(), &buf)!= 0,
+ p, ec, "boost::filesystem::last_write_time");
+
+# else
+
+ handle_wrapper hw(
+ create_file_handle(p.c_str(), FILE_WRITE_ATTRIBUTES,
+ FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, 0,
+ OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0));
+
+ if (error(hw.handle == INVALID_HANDLE_VALUE,
+ p, ec, "boost::filesystem::last_write_time"))
+ return;
+
+ FILETIME lwt;
+ to_FILETIME(new_time, lwt);
+
+ error(::SetFileTime(hw.handle, 0, 0, &lwt)== 0,
+ p, ec, "boost::filesystem::last_write_time");
+# endif
+ }
+
+# ifdef BOOST_POSIX_API
+ const perms active_bits(all_all | set_uid_on_exe | set_gid_on_exe | sticky_bit);
+ inline mode_t mode_cast(perms prms) { return prms & active_bits; }
+# endif
+
+ BOOST_FILESYSTEM_DECL
+ void permissions(const path& p, perms prms, system::error_code* ec)
+ {
+ BOOST_ASSERT_MSG(!((prms & add_perms) && (prms & remove_perms)),
+ "add_perms and remove_perms are mutually exclusive");
+
+ if ((prms & add_perms) && (prms & remove_perms)) // precondition failed
+ return;
+
+# ifdef BOOST_POSIX_API
+ error_code local_ec;
+ file_status current_status((prms & symlink_perms)
+ ? fs::symlink_status(p, local_ec)
+ : fs::status(p, local_ec));
+ if (local_ec)
+ {
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(
+ "boost::filesystem::permissions", p, local_ec));
+ else
+ *ec = local_ec;
+ return;
+ }
+
+ if (prms & add_perms)
+ prms |= current_status.permissions();
+ else if (prms & remove_perms)
+ prms = current_status.permissions() & ~prms;
+
+ // Mac OS X Lion and some other platforms don't support fchmodat().
+ // Solaris (SunPro and gcc) only support fchmodat() on Solaris 11 and higher,
+ // and a runtime check is too much trouble.
+ // Linux does not support permissions on symbolic links and has no plans to
+ // support them in the future. The chmod() code is thus more practical,
+ // rather than always hitting ENOTSUP when sending in AT_SYMLINK_NO_FOLLOW.
+ // - See the 3rd paragraph of
+ // "Symbolic link ownership, permissions, and timestamps" at:
+ // "http://man7.org/linux/man-pages/man7/symlink.7.html"
+ // - See the fchmodat() Linux man page:
+ // "http://man7.org/linux/man-pages/man2/fchmodat.2.html"
+# if defined(AT_FDCWD) && defined(AT_SYMLINK_NOFOLLOW) \
+ && !(defined(__SUNPRO_CC) || defined(sun)) \
+ && !(defined(linux) || defined(__linux) || defined(__linux__))
+ if (::fchmodat(AT_FDCWD, p.c_str(), mode_cast(prms),
+ !(prms & symlink_perms) ? 0 : AT_SYMLINK_NOFOLLOW))
+# else // fallback if fchmodat() not supported
+ if (::chmod(p.c_str(), mode_cast(prms)))
+# endif
+ {
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error(
+ "boost::filesystem::permissions", p,
+ error_code(errno, system::generic_category())));
+ else
+ ec->assign(errno, system::generic_category());
+ }
+
+# else // Windows
+
+ // if not going to alter FILE_ATTRIBUTE_READONLY, just return
+ if (!(!((prms & (add_perms | remove_perms)))
+ || (prms & (owner_write|group_write|others_write))))
+ return;
+
+ DWORD attr = ::GetFileAttributesW(p.c_str());
+
+ if (error(attr == 0, p, ec, "boost::filesystem::permissions"))
+ return;
+
+ if (prms & add_perms)
+ attr &= ~FILE_ATTRIBUTE_READONLY;
+ else if (prms & remove_perms)
+ attr |= FILE_ATTRIBUTE_READONLY;
+ else if (prms & (owner_write|group_write|others_write))
+ attr &= ~FILE_ATTRIBUTE_READONLY;
+ else
+ attr |= FILE_ATTRIBUTE_READONLY;
+
+ error(::SetFileAttributesW(p.c_str(), attr) == 0,
+ p, ec, "boost::filesystem::permissions");
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ path read_symlink(const path& p, system::error_code* ec)
+ {
+ path symlink_path;
+
+# ifdef BOOST_POSIX_API
+
+ for (std::size_t path_max = 64;; path_max *= 2)// loop 'til buffer large enough
+ {
+ boost::scoped_array<char> buf(new char[path_max]);
+ ssize_t result;
+ if ((result=::readlink(p.c_str(), buf.get(), path_max))== -1)
+ {
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error("boost::filesystem::read_symlink",
+ p, error_code(errno, system_category())));
+ else ec->assign(errno, system_category());
+ break;
+ }
+ else
+ {
+ if(result != static_cast<ssize_t>(path_max))
+ {
+ symlink_path.assign(buf.get(), buf.get() + result);
+ if (ec != 0) ec->clear();
+ break;
+ }
+ }
+ }
+
+# elif _WIN32_WINNT < 0x0600 // SDK earlier than Vista and Server 2008
+ error(true, error_code(BOOST_ERROR_NOT_SUPPORTED, system_category()), p, ec,
+ "boost::filesystem::read_symlink");
+# else // Vista and Server 2008 SDK, or later
+
+ union info_t
+ {
+ char buf[REPARSE_DATA_BUFFER_HEADER_SIZE+MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
+ REPARSE_DATA_BUFFER rdb;
+ } info;
+
+ handle_wrapper h(
+ create_file_handle(p.c_str(), GENERIC_READ, 0, 0, OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, 0));
+
+ if (error(h.handle == INVALID_HANDLE_VALUE, p, ec, "boost::filesystem::read_symlink"))
+ return symlink_path;
+
+ DWORD sz;
+
+ if (!error(::DeviceIoControl(h.handle, FSCTL_GET_REPARSE_POINT,
+ 0, 0, info.buf, sizeof(info), &sz, 0) == 0, p, ec,
+ "boost::filesystem::read_symlink" ))
+ symlink_path.assign(
+ static_cast<wchar_t*>(info.rdb.SymbolicLinkReparseBuffer.PathBuffer)
+ + info.rdb.SymbolicLinkReparseBuffer.PrintNameOffset/sizeof(wchar_t),
+ static_cast<wchar_t*>(info.rdb.SymbolicLinkReparseBuffer.PathBuffer)
+ + info.rdb.SymbolicLinkReparseBuffer.PrintNameOffset/sizeof(wchar_t)
+ + info.rdb.SymbolicLinkReparseBuffer.PrintNameLength/sizeof(wchar_t));
+# endif
+ return symlink_path;
+ }
+
+ BOOST_FILESYSTEM_DECL
+ bool remove(const path& p, error_code* ec)
+ {
+ error_code tmp_ec;
+ file_type type = query_file_type(p, &tmp_ec);
+ if (error(type == status_error, tmp_ec, p, ec,
+ "boost::filesystem::remove"))
+ return false;
+
+ // Since POSIX remove() is specified to work with either files or directories, in a
+ // perfect world it could just be called. But some important real-world operating
+ // systems (Windows, Mac OS X, for example) don't implement the POSIX spec. So
+ // remove_file_or_directory() is always called to kep it simple.
+ return remove_file_or_directory(p, type, ec);
+ }
+
+ BOOST_FILESYSTEM_DECL
+ boost::uintmax_t remove_all(const path& p, error_code* ec)
+ {
+ error_code tmp_ec;
+ file_type type = query_file_type(p, &tmp_ec);
+ if (error(type == status_error, tmp_ec, p, ec,
+ "boost::filesystem::remove_all"))
+ return 0;
+
+ return (type != status_error && type != file_not_found) // exists
+ ? remove_all_aux(p, type, ec)
+ : 0;
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void rename(const path& old_p, const path& new_p, error_code* ec)
+ {
+ error(!BOOST_MOVE_FILE(old_p.c_str(), new_p.c_str()), old_p, new_p, ec,
+ "boost::filesystem::rename");
+ }
+
+ BOOST_FILESYSTEM_DECL
+ void resize_file(const path& p, uintmax_t size, system::error_code* ec)
+ {
+ error(!BOOST_RESIZE_FILE(p.c_str(), size), p, ec, "boost::filesystem::resize_file");
+ }
+
+ BOOST_FILESYSTEM_DECL
+ space_info space(const path& p, error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+ struct BOOST_STATVFS vfs;
+ space_info info;
+ if (!error(::BOOST_STATVFS(p.c_str(), &vfs)!= 0,
+ p, ec, "boost::filesystem::space"))
+ {
+ info.capacity
+ = static_cast<boost::uintmax_t>(vfs.f_blocks)* BOOST_STATVFS_F_FRSIZE;
+ info.free
+ = static_cast<boost::uintmax_t>(vfs.f_bfree)* BOOST_STATVFS_F_FRSIZE;
+ info.available
+ = static_cast<boost::uintmax_t>(vfs.f_bavail)* BOOST_STATVFS_F_FRSIZE;
+ }
+
+# else
+ ULARGE_INTEGER avail, total, free;
+ space_info info;
+
+ if (!error(::GetDiskFreeSpaceExW(p.c_str(), &avail, &total, &free)== 0,
+ p, ec, "boost::filesystem::space"))
+ {
+ info.capacity
+ = (static_cast<boost::uintmax_t>(total.HighPart)<< 32)
+ + total.LowPart;
+ info.free
+ = (static_cast<boost::uintmax_t>(free.HighPart)<< 32)
+ + free.LowPart;
+ info.available
+ = (static_cast<boost::uintmax_t>(avail.HighPart)<< 32)
+ + avail.LowPart;
+ }
+
+# endif
+
+ else
+ {
+ info.capacity = info.free = info.available = 0;
+ }
+ return info;
+ }
+
+ BOOST_FILESYSTEM_DECL
+ file_status status(const path& p, error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+
+ struct stat path_stat;
+ if (::stat(p.c_str(), &path_stat)!= 0)
+ {
+ if (ec != 0) // always report errno, even though some
+ ec->assign(errno, system_category()); // errno values are not status_errors
+
+ if (not_found_error(errno))
+ {
+ return fs::file_status(fs::file_not_found, fs::no_perms);
+ }
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error("boost::filesystem::status",
+ p, error_code(errno, system_category())));
+ return fs::file_status(fs::status_error);
+ }
+ if (ec != 0) ec->clear();;
+ if (S_ISDIR(path_stat.st_mode))
+ return fs::file_status(fs::directory_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISREG(path_stat.st_mode))
+ return fs::file_status(fs::regular_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISBLK(path_stat.st_mode))
+ return fs::file_status(fs::block_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISCHR(path_stat.st_mode))
+ return fs::file_status(fs::character_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISFIFO(path_stat.st_mode))
+ return fs::file_status(fs::fifo_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISSOCK(path_stat.st_mode))
+ return fs::file_status(fs::socket_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ return fs::file_status(fs::type_unknown);
+
+# else // Windows
+
+ DWORD attr(::GetFileAttributesW(p.c_str()));
+ if (attr == 0xFFFFFFFF)
+ {
+ return process_status_failure(p, ec);
+ }
+
+ // reparse point handling;
+ // since GetFileAttributesW does not resolve symlinks, try to open a file
+ // handle to discover if the file exists
+ if (attr & FILE_ATTRIBUTE_REPARSE_POINT)
+ {
+ handle_wrapper h(
+ create_file_handle(
+ p.c_str(),
+ 0, // dwDesiredAccess; attributes only
+ FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
+ 0, // lpSecurityAttributes
+ OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS,
+ 0)); // hTemplateFile
+ if (h.handle == INVALID_HANDLE_VALUE)
+ {
+ return process_status_failure(p, ec);
+ }
+
+ if (!is_reparse_point_a_symlink(p))
+ return file_status(reparse_file, make_permissions(p, attr));
+ }
+
+ if (ec != 0) ec->clear();
+ return (attr & FILE_ATTRIBUTE_DIRECTORY)
+ ? file_status(directory_file, make_permissions(p, attr))
+ : file_status(regular_file, make_permissions(p, attr));
+
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ file_status symlink_status(const path& p, error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+
+ struct stat path_stat;
+ if (::lstat(p.c_str(), &path_stat)!= 0)
+ {
+ if (ec != 0) // always report errno, even though some
+ ec->assign(errno, system_category()); // errno values are not status_errors
+
+ if (errno == ENOENT || errno == ENOTDIR) // these are not errors
+ {
+ return fs::file_status(fs::file_not_found, fs::no_perms);
+ }
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(filesystem_error("boost::filesystem::status",
+ p, error_code(errno, system_category())));
+ return fs::file_status(fs::status_error);
+ }
+ if (ec != 0) ec->clear();
+ if (S_ISREG(path_stat.st_mode))
+ return fs::file_status(fs::regular_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISDIR(path_stat.st_mode))
+ return fs::file_status(fs::directory_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISLNK(path_stat.st_mode))
+ return fs::file_status(fs::symlink_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISBLK(path_stat.st_mode))
+ return fs::file_status(fs::block_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISCHR(path_stat.st_mode))
+ return fs::file_status(fs::character_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISFIFO(path_stat.st_mode))
+ return fs::file_status(fs::fifo_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ if (S_ISSOCK(path_stat.st_mode))
+ return fs::file_status(fs::socket_file,
+ static_cast<perms>(path_stat.st_mode) & fs::perms_mask);
+ return fs::file_status(fs::type_unknown);
+
+# else // Windows
+
+ DWORD attr(::GetFileAttributesW(p.c_str()));
+ if (attr == 0xFFFFFFFF)
+ {
+ return process_status_failure(p, ec);
+ }
+
+ if (ec != 0) ec->clear();
+
+ if (attr & FILE_ATTRIBUTE_REPARSE_POINT)
+ return is_reparse_point_a_symlink(p)
+ ? file_status(symlink_file, make_permissions(p, attr))
+ : file_status(reparse_file, make_permissions(p, attr));
+
+ return (attr & FILE_ATTRIBUTE_DIRECTORY)
+ ? file_status(directory_file, make_permissions(p, attr))
+ : file_status(regular_file, make_permissions(p, attr));
+
+# endif
+ }
+
+ // contributed by Jeff Flinn
+ BOOST_FILESYSTEM_DECL
+ path temp_directory_path(system::error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+ const char* val = 0;
+
+ (val = std::getenv("TMPDIR" )) ||
+ (val = std::getenv("TMP" )) ||
+ (val = std::getenv("TEMP" )) ||
+ (val = std::getenv("TEMPDIR"));
+
+ path p((val!=0) ? val : "/tmp");
+
+ if (p.empty() || (ec&&!is_directory(p, *ec))||(!ec&&!is_directory(p)))
+ {
+ errno = ENOTDIR;
+ error(true, p, ec, "boost::filesystem::temp_directory_path");
+ return p;
+ }
+
+ return p;
+
+# else // Windows
+
+ std::vector<path::value_type> buf(GetTempPathW(0, NULL));
+
+ if (buf.empty() || GetTempPathW(buf.size(), &buf[0])==0)
+ {
+ if(!buf.empty()) ::SetLastError(ENOTDIR);
+ error(true, ec, "boost::filesystem::temp_directory_path");
+ return path();
+ }
+
+ buf.pop_back();
+
+ path p(buf.begin(), buf.end());
+
+ if ((ec&&!is_directory(p, *ec))||(!ec&&!is_directory(p)))
+ {
+ ::SetLastError(ENOTDIR);
+ error(true, p, ec, "boost::filesystem::temp_directory_path");
+ return path();
+ }
+
+ return p;
+# endif
+ }
+
+ BOOST_FILESYSTEM_DECL
+ path system_complete(const path& p, system::error_code* ec)
+ {
+# ifdef BOOST_POSIX_API
+ return (p.empty() || p.is_absolute())
+ ? p : current_path()/ p;
+
+# else
+ if (p.empty())
+ {
+ if (ec != 0) ec->clear();
+ return p;
+ }
+ wchar_t buf[buf_size];
+ wchar_t* pfn;
+ std::size_t len = get_full_path_name(p, buf_size, buf, &pfn);
+
+ if (error(len == 0, p, ec, "boost::filesystem::system_complete"))
+ return path();
+
+ if (len < buf_size)// len does not include null termination character
+ return path(&buf[0]);
+
+ boost::scoped_array<wchar_t> big_buf(new wchar_t[len]);
+
+ return error(get_full_path_name(p, len , big_buf.get(), &pfn)== 0,
+ p, ec, "boost::filesystem::system_complete")
+ ? path()
+ : path(big_buf.get());
+# endif
+ }
+
+} // namespace detail
+
+//--------------------------------------------------------------------------------------//
+// //
+// directory_entry //
+// //
+//--------------------------------------------------------------------------------------//
+
+ file_status
+ directory_entry::m_get_status(system::error_code* ec) const
+ {
+ if (!status_known(m_status))
+ {
+ // optimization: if the symlink status is known, and it isn't a symlink,
+ // then status and symlink_status are identical so just copy the
+ // symlink status to the regular status.
+ if (status_known(m_symlink_status)
+ && !is_symlink(m_symlink_status))
+ {
+ m_status = m_symlink_status;
+ if (ec != 0) ec->clear();
+ }
+ else m_status = detail::status(m_path, ec);
+ }
+ else if (ec != 0) ec->clear();
+ return m_status;
+ }
+
+ file_status
+ directory_entry::m_get_symlink_status(system::error_code* ec) const
+ {
+ if (!status_known(m_symlink_status))
+ m_symlink_status = detail::symlink_status(m_path, ec);
+ else if (ec != 0) ec->clear();
+ return m_symlink_status;
+ }
+
+// dispatch directory_entry supplied here rather than in
+// <boost/filesystem/path_traits.hpp>, thus avoiding header circularity.
+// test cases are in operations_unit_test.cpp
+
+namespace path_traits
+{
+ void dispatch(const directory_entry & de,
+# ifdef BOOST_WINDOWS_API
+ std::wstring& to,
+# else
+ std::string& to,
+# endif
+ const codecvt_type &)
+ {
+ to = de.path().native();
+ }
+
+} // namespace path_traits
+} // namespace filesystem
+} // namespace boost
+
+//--------------------------------------------------------------------------------------//
+// //
+// directory_iterator //
+// //
+//--------------------------------------------------------------------------------------//
+
+namespace
+{
+# ifdef BOOST_POSIX_API
+
+ error_code path_max(std::size_t & result)
+ // this code is based on Stevens and Rago, Advanced Programming in the
+ // UNIX envirnment, 2nd Ed., ISBN 0-201-43307-9, page 49
+ {
+# ifdef PATH_MAX
+ static std::size_t max = PATH_MAX;
+# else
+ static std::size_t max = 0;
+# endif
+ if (max == 0)
+ {
+ errno = 0;
+ long tmp = ::pathconf("/", _PC_NAME_MAX);
+ if (tmp < 0)
+ {
+ if (errno == 0)// indeterminate
+ max = 4096; // guess
+ else return error_code(errno, system_category());
+ }
+ else max = static_cast<std::size_t>(tmp + 1); // relative root
+ }
+ result = max;
+ return ok;
+ }
+
+#if defined(__PGI) && defined(__USE_FILE_OFFSET64)
+#define dirent dirent64
+#endif
+
+ error_code dir_itr_first(void *& handle, void *& buffer,
+ const char* dir, string& target,
+ fs::file_status &, fs::file_status &)
+ {
+ if ((handle = ::opendir(dir))== 0)
+ return error_code(errno, system_category());
+ target = string("."); // string was static but caused trouble
+ // when iteration called from dtor, after
+ // static had already been destroyed
+ std::size_t path_size (0); // initialization quiets gcc warning (ticket #3509)
+ error_code ec = path_max(path_size);
+ if (ec)return ec;
+ dirent de;
+ buffer = std::malloc((sizeof(dirent) - sizeof(de.d_name))
+ + path_size + 1); // + 1 for "/0"
+ return ok;
+ }
+
+ // warning: the only dirent member updated is d_name
+ inline int readdir_r_simulator(DIR * dirp, struct dirent * entry,
+ struct dirent ** result)// *result set to 0 on end of directory
+ {
+ errno = 0;
+
+# if !defined(__CYGWIN__)\
+ && defined(_POSIX_THREAD_SAFE_FUNCTIONS)\
+ && defined(_SC_THREAD_SAFE_FUNCTIONS)\
+ && (_POSIX_THREAD_SAFE_FUNCTIONS+0 >= 0)\
+ && (!defined(__hpux) || defined(_REENTRANT)) \
+ && (!defined(_AIX) || defined(__THREAD_SAFE))
+ if (::sysconf(_SC_THREAD_SAFE_FUNCTIONS)>= 0)
+ { return ::readdir_r(dirp, entry, result); }
+# endif
+
+ struct dirent * p;
+ *result = 0;
+ if ((p = ::readdir(dirp))== 0)
+ return errno;
+ std::strcpy(entry->d_name, p->d_name);
+ *result = entry;
+ return 0;
+ }
+
+ error_code dir_itr_increment(void *& handle, void *& buffer,
+ string& target, fs::file_status & sf, fs::file_status & symlink_sf)
+ {
+ BOOST_ASSERT(buffer != 0);
+ dirent * entry(static_cast<dirent *>(buffer));
+ dirent * result;
+ int return_code;
+ if ((return_code = readdir_r_simulator(static_cast<DIR*>(handle), entry, &result))!= 0)
+ return error_code(errno, system_category());
+ if (result == 0)
+ return fs::detail::dir_itr_close(handle, buffer);
+ target = entry->d_name;
+# ifdef BOOST_FILESYSTEM_STATUS_CACHE
+ if (entry->d_type == DT_UNKNOWN) // filesystem does not supply d_type value
+ {
+ sf = symlink_sf = fs::file_status(fs::status_error);
+ }
+ else // filesystem supplies d_type value
+ {
+ if (entry->d_type == DT_DIR)
+ sf = symlink_sf = fs::file_status(fs::directory_file);
+ else if (entry->d_type == DT_REG)
+ sf = symlink_sf = fs::file_status(fs::regular_file);
+ else if (entry->d_type == DT_LNK)
+ {
+ sf = fs::file_status(fs::status_error);
+ symlink_sf = fs::file_status(fs::symlink_file);
+ }
+ else sf = symlink_sf = fs::file_status(fs::status_error);
+ }
+# else
+ sf = symlink_sf = fs::file_status(fs::status_error);
+# endif
+ return ok;
+ }
+
+# else // BOOST_WINDOWS_API
+
+ error_code dir_itr_first(void *& handle, const fs::path& dir,
+ wstring& target, fs::file_status & sf, fs::file_status & symlink_sf)
+ // Note: an empty root directory has no "." or ".." entries, so this
+ // causes a ERROR_FILE_NOT_FOUND error which we do not considered an
+ // error. It is treated as eof instead.
+ {
+ // use a form of search Sebastian Martel reports will work with Win98
+ wstring dirpath(dir.wstring());
+ dirpath += (dirpath.empty()
+ || (dirpath[dirpath.size()-1] != L'\\'
+ && dirpath[dirpath.size()-1] != L'/'
+ && dirpath[dirpath.size()-1] != L':'))? L"\\*" : L"*";
+
+ WIN32_FIND_DATAW data;
+ if ((handle = ::FindFirstFileW(dirpath.c_str(), &data))
+ == INVALID_HANDLE_VALUE)
+ {
+ handle = 0; // signal eof
+ return error_code( (::GetLastError() == ERROR_FILE_NOT_FOUND
+ // Windows Mobile returns ERROR_NO_MORE_FILES; see ticket #3551
+ || ::GetLastError() == ERROR_NO_MORE_FILES)
+ ? 0 : ::GetLastError(), system_category() );
+ }
+ target = data.cFileName;
+ if (data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
+ // reparse points are complex, so don't try to handle them here; instead just mark
+ // them as status_error which causes directory_entry caching to call status()
+ // and symlink_status() which do handle reparse points fully
+ {
+ sf.type(fs::status_error);
+ symlink_sf.type(fs::status_error);
+ }
+ else
+ {
+ if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+ {
+ sf.type(fs::directory_file);
+ symlink_sf.type(fs::directory_file);
+ }
+ else
+ {
+ sf.type(fs::regular_file);
+ symlink_sf.type(fs::regular_file);
+ }
+ sf.permissions(make_permissions(data.cFileName, data.dwFileAttributes));
+ symlink_sf.permissions(sf.permissions());
+ }
+ return error_code();
+ }
+
+ error_code dir_itr_increment(void *& handle, wstring& target,
+ fs::file_status & sf, fs::file_status & symlink_sf)
+ {
+ WIN32_FIND_DATAW data;
+ if (::FindNextFileW(handle, &data)== 0)// fails
+ {
+ int error = ::GetLastError();
+ fs::detail::dir_itr_close(handle);
+ return error_code(error == ERROR_NO_MORE_FILES ? 0 : error, system_category());
+ }
+ target = data.cFileName;
+ if (data.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)
+ // reparse points are complex, so don't try to handle them here; instead just mark
+ // them as status_error which causes directory_entry caching to call status()
+ // and symlink_status() which do handle reparse points fully
+ {
+ sf.type(fs::status_error);
+ symlink_sf.type(fs::status_error);
+ }
+ else
+ {
+ if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+ {
+ sf.type(fs::directory_file);
+ symlink_sf.type(fs::directory_file);
+ }
+ else
+ {
+ sf.type(fs::regular_file);
+ symlink_sf.type(fs::regular_file);
+ }
+ sf.permissions(make_permissions(data.cFileName, data.dwFileAttributes));
+ symlink_sf.permissions(sf.permissions());
+ }
+ return error_code();
+ }
+#endif
+
+ const error_code not_found_error_code (
+# ifdef BOOST_WINDOWS_API
+ ERROR_PATH_NOT_FOUND
+# else
+ ENOENT
+# endif
+ , system_category());
+
+} // unnamed namespace
+
+namespace boost
+{
+namespace filesystem
+{
+
+namespace detail
+{
+ // dir_itr_close is called both from the ~dir_itr_imp()destructor
+ // and dir_itr_increment()
+ BOOST_FILESYSTEM_DECL
+ system::error_code dir_itr_close( // never throws
+ void *& handle
+# if defined(BOOST_POSIX_API)
+ , void *& buffer
+# endif
+ )
+ {
+# ifdef BOOST_POSIX_API
+ std::free(buffer);
+ buffer = 0;
+ if (handle == 0)return ok;
+ DIR * h(static_cast<DIR*>(handle));
+ handle = 0;
+ return error_code(::closedir(h)== 0 ? 0 : errno, system_category());
+
+# else
+ if (handle != 0)
+ {
+ ::FindClose(handle);
+ handle = 0;
+ }
+ return ok;
+
+# endif
+ }
+
+ void directory_iterator_construct(directory_iterator& it,
+ const path& p, system::error_code* ec)
+ {
+ if (error(p.empty(), not_found_error_code, p, ec,
+ "boost::filesystem::directory_iterator::construct"))
+ return;
+
+ path::string_type filename;
+ file_status file_stat, symlink_file_stat;
+ error_code result = dir_itr_first(it.m_imp->handle,
+# if defined(BOOST_POSIX_API)
+ it.m_imp->buffer,
+# endif
+ p.c_str(), filename, file_stat, symlink_file_stat);
+
+ if (result)
+ {
+ it.m_imp.reset();
+ error(true, result, p,
+ ec, "boost::filesystem::directory_iterator::construct");
+ return;
+ }
+
+ if (it.m_imp->handle == 0)
+ it.m_imp.reset(); // eof, so make end iterator
+ else // not eof
+ {
+ it.m_imp->dir_entry.assign(p / filename, file_stat, symlink_file_stat);
+ if (filename[0] == dot // dot or dot-dot
+ && (filename.size()== 1
+ || (filename[1] == dot
+ && filename.size()== 2)))
+ { it.increment(*ec); }
+ }
+ }
+
+ void directory_iterator_increment(directory_iterator& it,
+ system::error_code* ec)
+ {
+ BOOST_ASSERT_MSG(it.m_imp.get(), "attempt to increment end iterator");
+ BOOST_ASSERT_MSG(it.m_imp->handle != 0, "internal program error");
+
+ path::string_type filename;
+ file_status file_stat, symlink_file_stat;
+ system::error_code temp_ec;
+
+ for (;;)
+ {
+ temp_ec = dir_itr_increment(it.m_imp->handle,
+# if defined(BOOST_POSIX_API)
+ it.m_imp->buffer,
+# endif
+ filename, file_stat, symlink_file_stat);
+
+ if (temp_ec) // happens if filesystem is corrupt, such as on a damaged optical disc
+ {
+ path error_path(it.m_imp->dir_entry.path().parent_path()); // fix ticket #5900
+ it.m_imp.reset();
+ if (ec == 0)
+ BOOST_FILESYSTEM_THROW(
+ filesystem_error("boost::filesystem::directory_iterator::operator++",
+ error_path,
+ error_code(BOOST_ERRNO, system_category())));
+ ec->assign(BOOST_ERRNO, system_category());
+ return;
+ }
+ else if (ec != 0) ec->clear();
+
+ if (it.m_imp->handle == 0) // eof, make end
+ {
+ it.m_imp.reset();
+ return;
+ }
+
+ if (!(filename[0] == dot // !(dot or dot-dot)
+ && (filename.size()== 1
+ || (filename[1] == dot
+ && filename.size()== 2))))
+ {
+ it.m_imp->dir_entry.replace_filename(
+ filename, file_stat, symlink_file_stat);
+ return;
+ }
+ }
+ }
+} // namespace detail
+} // namespace filesystem
+} // namespace boost