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Instead friending status, provide windows and posix constructors to file_status.

Browse Source 
This opens the way of having static helpers in the .inc files that can
construct a file_status.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186376 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2013-07-16 02:55:33 +00:00
parent 334f8b9b37
commit 77e31bca03
3 changed files with 57 additions and 49 deletions
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53
include/llvm/Support/FileSystem.h
View File

@ -164,14 +164,29 @@ class file_status
uint32_t FileIndexLow;
#endif
friend bool equivalent(file_status A, file_status B);
friend error_code status(const Twine &path, file_status &result);
friend error_code getUniqueID(const Twine Path, uint64_t &Result);
file_type Type;
perms Perms;
public:
explicit file_status(file_type v=file_type::status_error,
perms prms=perms_not_known)
: Type(v), Perms(prms) {}
file_status() : Type(file_type::status_error) {}
file_status(file_type Type) : Type(Type) {}
#if defined(LLVM_ON_UNIX)
file_status(file_type Type, perms Perms, dev_t Dev, ino_t Ino, time_t MTime,
uid_t UID, gid_t GID, off_t Size)
: fs_st_dev(Dev), fs_st_ino(Ino), fs_st_mtime(MTime), fs_st_uid(UID),
fs_st_gid(GID), fs_st_size(Size), Type(Type), Perms(Perms) {}
#elif defined(LLVM_ON_WIN32)
file_status(file_type Type, uint32_t LastWriteTimeHigh,
uint32_t LastWriteTimeLow, uint32_t VolumeSerialNumber,
uint32_t FileSizeHigh, uint32_t FileSizeLow,
uint32_t FileIndexHigh, uint32_t FileIndexLow)
: LastWriteTimeHigh(LastWriteTimeHigh),
LastWriteTimeLow(LastWriteTimeLow),
VolumeSerialNumber(VolumeSerialNumber), FileSizeHigh(FileSizeHigh),
FileSizeLow(FileSizeLow), FileIndexHigh(FileIndexHigh),
FileIndexLow(FileIndexLow), Type(Type), Perms(perms_not_known) {}
#endif
// getters
file_type type() const { return Type; }
@ -434,21 +449,6 @@ inline bool equivalent(const Twine &A, const Twine &B) {
return !equivalent(A, B, result) && result;
}
/// @brief Get file size.
///
/// @param Path Input path.
/// @param Result Set to the size of the file in \a Path.
/// @returns errc::success if result has been successfully set, otherwise a
/// platform specific error_code.
inline error_code file_size(const Twine &Path, uint64_t &Result) {
file_status Status;
error_code EC = status(Path, Status);
if (EC)
return EC;
Result = Status.getSize();
return error_code::success();
}
/// @brief Does status represent a directory?
///
/// @param status A file_status previously returned from status.
@ -529,6 +529,21 @@ error_code is_symlink(const Twine &path, bool &result);
/// platform specific error_code.
error_code status(const Twine &path, file_status &result);
/// @brief Get file size.
///
/// @param Path Input path.
/// @param Result Set to the size of the file in \a Path.
/// @returns errc::success if result has been successfully set, otherwise a
/// platform specific error_code.
inline error_code file_size(const Twine &Path, uint64_t &Result) {
file_status Status;
error_code EC = status(Path, Status);
if (EC)
return EC;
Result = Status.getSize();
return error_code::success();
}
error_code setLastModificationAndAccessTime(int FD, TimeValue Time);
/// @brief Is status available?

38
lib/Support/Unix/Path.inc
View File

@ -556,28 +556,24 @@ error_code status(const Twine &path, file_status &result) {
}
perms prms = static_cast<perms>(status.st_mode);
if (S_ISDIR(status.st_mode))
result = file_status(file_type::directory_file, prms);
else if (S_ISREG(status.st_mode))
result = file_status(file_type::regular_file, prms);
else if (S_ISBLK(status.st_mode))
result = file_status(file_type::block_file, prms);
else if (S_ISCHR(status.st_mode))
result = file_status(file_type::character_file, prms);
else if (S_ISFIFO(status.st_mode))
result = file_status(file_type::fifo_file, prms);
else if (S_ISSOCK(status.st_mode))
result = file_status(file_type::socket_file, prms);
else
result = file_status(file_type::type_unknown, prms);
file_type Type = file_type::type_unknown;
result.fs_st_dev = status.st_dev;
result.fs_st_ino = status.st_ino;
result.fs_st_mtime = status.st_mtime;
result.fs_st_uid = status.st_uid;
result.fs_st_gid = status.st_gid;
result.fs_st_size = status.st_size;
if (S_ISDIR(status.st_mode))
Type = file_type::directory_file;
else if (S_ISREG(status.st_mode))
Type = file_type::regular_file;
else if (S_ISBLK(status.st_mode))
Type = file_type::block_file;
else if (S_ISCHR(status.st_mode))
Type = file_type::character_file;
else if (S_ISFIFO(status.st_mode))
Type = file_type::fifo_file;
else if (S_ISSOCK(status.st_mode))
Type = file_type::socket_file;
result =
file_status(Type, prms, status.st_dev, status.st_ino, status.st_mtime,
status.st_uid, status.st_gid, status.st_size);
return error_code::success();
}

15
lib/Support/Windows/Path.inc
View File

@ -632,7 +632,6 @@ error_code status(const Twine &path, file_status &result) {
if (attr & FILE_ATTRIBUTE_DIRECTORY)
result = file_status(file_type::directory_file);
else {
result = file_status(file_type::regular_file);
ScopedFileHandle h(
::CreateFileW(path_utf16.begin(),
0, // Attributes only.
@ -646,15 +645,13 @@ error_code status(const Twine &path, file_status &result) {
BY_HANDLE_FILE_INFORMATION Info;
if (!::GetFileInformationByHandle(h, &Info))
goto handle_status_error;
result.FileIndexHigh = Info.nFileIndexHigh;
result.FileIndexLow = Info.nFileIndexLow;
result.FileSizeHigh = Info.nFileSizeHigh;
result.FileSizeLow = Info.nFileSizeLow;
result.LastWriteTimeHigh = Info.ftLastWriteTime.dwHighDateTime;
result.LastWriteTimeLow = Info.ftLastWriteTime.dwLowDateTime;
result.VolumeSerialNumber = Info.dwVolumeSerialNumber;
}
result = file_status(
file_type::regular_file, Info.ftLastWriteTime.dwHighDateTime,
Info.ftLastWriteTime.dwLowDateTime, Info.dwVolumeSerialNumber,
Info.nFileSizeHigh, Info.nFileSizeLow, Info.nFileIndexHigh,
Info.nFileIndexLow);
}
return error_code::success();
handle_status_error: