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authorRemko Tronçon <git@el-tramo.be>2012-12-23 13:16:26 (GMT)
committerRemko Tronçon <git@el-tramo.be>2012-12-23 14:43:26 (GMT)
commit491ddd570a752cf9bda85933bed0c6942e39b1f9 (patch)
tree10c25c1be8cc08d0497df1dccd56a10fbb30beee /3rdParty/Boost/src/libs/filesystem/v3/src/operations.cpp
parentda7d7a0ca71b80281aa9ff2526290b61ccb0cc60 (diff)
downloadswift-491ddd570a752cf9bda85933bed0c6942e39b1f9.zip
swift-491ddd570a752cf9bda85933bed0c6942e39b1f9.tar.bz2
Update Boost to 1.52.0.
Change-Id: I1e56bea2600bf2ed9c5b3aba8c4f9d2a0f350e77
Diffstat (limited to '3rdParty/Boost/src/libs/filesystem/v3/src/operations.cpp')
-rw-r--r--3rdParty/Boost/src/libs/filesystem/v3/src/operations.cpp1975
1 files changed, 0 insertions, 1975 deletions
diff --git a/3rdParty/Boost/src/libs/filesystem/v3/src/operations.cpp b/3rdParty/Boost/src/libs/filesystem/v3/src/operations.cpp
deleted file mode 100644
index 2460c1d..0000000
--- a/3rdParty/Boost/src/libs/filesystem/v3/src/operations.cpp
+++ /dev/null
@@ -1,1975 +0,0 @@
-// 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
-
-//--------------------------------------------------------------------------------------//
-
-#include <boost/config.hpp>
-#if !defined( BOOST_NO_STD_WSTRING )
-// Boost.Filesystem V3 and later requires std::wstring support.
-// During the transition to V3, libraries are compiled with both V2 and V3 sources.
-// On old compilers that don't support V3 anyhow, we just skip everything so the compile
-// will succeed and the library can be built.
-
-// 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
-
-#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
-
-#include <boost/filesystem/v3/operations.hpp>
-#include <boost/scoped_array.hpp>
-#include <boost/detail/workaround.hpp>
-#include <cstdlib> // for malloc, free
-#include <vector>
-
-#ifdef BOOST_FILEYSTEM_INCLUDE_IOSTREAM
-# include <iostream>
-#endif
-
-namespace fs = boost::filesystem3;
-using boost::filesystem3::path;
-using boost::filesystem3::filesystem_error;
-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
-
-# include <sys/types.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
-
-# 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 <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
-
-#include <sys/stat.h> // even on Windows some functions use stat()
-#include <string>
-#include <cstring>
-#include <cstdio> // for remove, rename
-#include <cerrno>
-#include <cassert>
-// #include <iostream> // for debugging only; comment out when not in use
-
-// 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)!= 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
-{
-
-# ifdef BOOST_POSIX_API
- const char dot = '.';
-# else
- const wchar_t dot = L'.';
-# endif
-
- fs::file_type query_file_type(const path& p, error_code* ec);
-
- boost::filesystem3::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 //
-// //
-//--------------------------------------------------------------------------------------//
-
- 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)
- { 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 //
-// //
-//--------------------------------------------------------------------------------------//
-
- 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
- }
-
- // 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);
- }
- 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 filesystem3
-{
-
- 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
- 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)
- {
- if (p.empty() || exists(p))
- {
- if (!p.empty() && !is_directory(p))
- {
- if (ec == 0)
- BOOST_FILESYSTEM_THROW(filesystem_error(
- "boost::filesystem::create_directories", p,
- error_code(system::errc::file_exists, system::generic_category())));
- else ec->assign(system::errc::file_exists, system::generic_category());
- }
- return false;
- }
-
- // First create branch, by calling ourself recursively
- create_directories(p.parent_path(), ec);
- // Now that parent's path exists, create the directory
- create_directory(p, ec);
- return true;
- }
-
- 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
- }
-
- 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);
- }
- 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);
- if (S_ISREG(path_stat.st_mode))
- return fs::file_status(fs::regular_file);
- if (S_ISBLK(path_stat.st_mode))
- return fs::file_status(fs::block_file);
- if (S_ISCHR(path_stat.st_mode))
- return fs::file_status(fs::character_file);
- if (S_ISFIFO(path_stat.st_mode))
- return fs::file_status(fs::fifo_file);
- if (S_ISSOCK(path_stat.st_mode))
- return fs::file_status(fs::socket_file);
- 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
- 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);
- }
-
- if (ec != 0) ec->clear();
- return (attr & FILE_ATTRIBUTE_DIRECTORY)
- ? file_status(directory_file)
- : file_status(regular_file);
-
-# 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);
- }
- 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);
- if (S_ISDIR(path_stat.st_mode))
- return fs::file_status(fs::directory_file);
- if (S_ISLNK(path_stat.st_mode))
- return fs::file_status(fs::symlink_file);
- if (S_ISBLK(path_stat.st_mode))
- return fs::file_status(fs::block_file);
- if (S_ISCHR(path_stat.st_mode))
- return fs::file_status(fs::character_file);
- if (S_ISFIFO(path_stat.st_mode))
- return fs::file_status(fs::fifo_file);
- if (S_ISSOCK(path_stat.st_mode))
- return fs::file_status(fs::socket_file);
- 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)
- : file_status(reparse_file);
-
- return (attr & FILE_ATTRIBUTE_DIRECTORY)
- ? file_status(directory_file)
- : file_status(regular_file);
-
-# 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 filesystem3
-} // 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;
- 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
- { 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); }
- 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
- { 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); }
- 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 filesystem3
-{
-
-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(); }
- }
- }
-
- void directory_iterator_increment(directory_iterator& it,
- system::error_code* ec)
- {
- BOOST_ASSERT(it.m_imp.get() && "attempt to increment end iterator");
- BOOST_ASSERT(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)
- {
- it.m_imp.reset();
- if (ec == 0)
- BOOST_FILESYSTEM_THROW(
- filesystem_error("boost::filesystem::directory_iterator::operator++",
- it.m_imp->dir_entry.path().parent_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 filesystem3
-} // namespace boost
-
-#endif // no wide character support