uint64_t available;
};
-
enum perms {
- no_perms = 0,
- owner_read = 0400,
- owner_write = 0200,
- owner_exe = 0100,
- owner_all = owner_read | owner_write | owner_exe,
- group_read = 040,
- group_write = 020,
- group_exe = 010,
- group_all = group_read | group_write | group_exe,
- others_read = 04,
- others_write = 02,
- others_exe = 01,
- others_all = others_read | others_write | others_exe,
- all_read = owner_read | group_read | others_read,
- all_write = owner_write | group_write | others_write,
- all_exe = owner_exe | group_exe | others_exe,
- all_all = owner_all | group_all | others_all,
- set_uid_on_exe = 04000,
- set_gid_on_exe = 02000,
- sticky_bit = 01000,
- perms_mask = all_all | set_uid_on_exe | set_gid_on_exe | sticky_bit,
- perms_not_known = 0xFFFF,
- add_perms = 0x1000,
- remove_perms = 0x2000,
- symlink_perms = 0x4000
+ no_perms = 0,
+ owner_read = 0400,
+ owner_write = 0200,
+ owner_exe = 0100,
+ owner_all = owner_read | owner_write | owner_exe,
+ group_read = 040,
+ group_write = 020,
+ group_exe = 010,
+ group_all = group_read | group_write | group_exe,
+ others_read = 04,
+ others_write = 02,
+ others_exe = 01,
+ others_all = others_read | others_write | others_exe,
+ all_read = owner_read | group_read | others_read,
+ all_write = owner_write | group_write | others_write,
+ all_exe = owner_exe | group_exe | others_exe,
+ all_all = owner_all | group_all | others_all,
+ set_uid_on_exe = 04000,
+ set_gid_on_exe = 02000,
+ sticky_bit = 01000,
+ perms_not_known = 0xFFFF
};
// Helper functions so that you can use & and | to manipulate perms bits:
time_t fs_st_mtime;
uid_t fs_st_uid;
gid_t fs_st_gid;
+ off_t fs_st_size;
#elif defined (LLVM_ON_WIN32)
uint32_t LastWriteTimeHigh;
uint32_t LastWriteTimeLow;
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; }
#if defined(LLVM_ON_UNIX)
uint32_t getUser() const { return fs_st_uid; }
uint32_t getGroup() const { return fs_st_gid; }
+ uint64_t getSize() const { return fs_st_size; }
#elif defined (LLVM_ON_WIN32)
uint32_t getUser() const {
return 9999; // Not applicable to Windows, so...
uint32_t getGroup() const {
return 9999; // Not applicable to Windows, so...
}
+ uint64_t getSize() const {
+ return (uint64_t(FileSizeHigh) << 32) + FileSizeLow;
+ }
#endif
// setters
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.
-error_code file_size(const Twine &path, uint64_t &result);
-
/// @brief Does status represent a directory?
///
/// @param status A file_status previously returned from status.
/// platform specific error_code.
error_code status(const Twine &path, file_status &result);
-/// @brief Modifies permission bits on a file
+/// @brief A version for when a file descriptor is already available.
+error_code status(int FD, file_status &Result);
+
+/// @brief Get file size.
///
-/// @param path Input path.
-/// @returns errc::success if permissions have been changed, otherwise a
+/// @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.
-error_code permissions(const Twine &path, perms prms);
+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);
/// platform specific error_code.
error_code status_known(const Twine &path, bool &result);
-/// @brief Generate a unique path and open it as a file.
+/// @brief Create a uniquely named file.
///
/// Generates a unique path suitable for a temporary file and then opens it as a
/// file. The name is based on \a model with '%' replaced by a random char in
/// [0-9a-f]. If \a model is not an absolute path, a suitable temporary
/// directory will be prepended.
///
+/// Example: clang-%%-%%-%%-%%-%%.s => clang-a0-b1-c2-d3-e4.s
+///
/// This is an atomic operation. Either the file is created and opened, or the
/// file system is left untouched.
///
-/// clang-%%-%%-%%-%%-%%.s => /tmp/clang-a0-b1-c2-d3-e4.s
+/// The intendend use is for files that are to be kept, possibly after
+/// renaming them. For example, when running 'clang -c foo.o', the file can
+/// be first created as foo-abc123.o and then renamed.
///
-/// @param model Name to base unique path off of.
-/// @param result_fd Set to the opened file's file descriptor.
-/// @param result_path Set to the opened file's absolute path.
-/// @param makeAbsolute If true and \a model is not an absolute path, a temp
-/// directory will be prepended.
-/// @param mode Set to the file open mode; since this is most often used for
-/// temporary files, mode defaults to owner_read | owner_write.
-/// @returns errc::success if result_{fd,path} have been successfully set,
+/// @param Model Name to base unique path off of.
+/// @param ResultFD Set to the opened file's file descriptor.
+/// @param ResultPath Set to the opened file's absolute path.
+/// @returns errc::success if Result{FD,Path} have been successfully set,
/// otherwise a platform specific error_code.
-error_code unique_file(const Twine &model, int &result_fd,
- SmallVectorImpl<char> &result_path,
- bool makeAbsolute = true,
- unsigned mode = owner_read | owner_write);
+error_code createUniqueFile(const Twine &Model, int &ResultFD,
+ SmallVectorImpl<char> &ResultPath,
+ unsigned Mode = all_read | all_write);
/// @brief Simpler version for clients that don't want an open file.
-error_code unique_file(const Twine &Model, SmallVectorImpl<char> &ResultPath,
- bool MakeAbsolute = true,
- unsigned Mode = owner_read | owner_write);
+error_code createUniqueFile(const Twine &Model,
+ SmallVectorImpl<char> &ResultPath);
+
+/// @brief Create a file in the system temporary directory.
+///
+/// The filename is of the form prefix-random_chars.suffix. Since the directory
+/// is not know to the caller, Prefix and Suffix cannot have path separators.
+/// The files are created with mode 0600.
+///
+/// This should be used for things like a temporary .s that is removed after
+/// running the assembler.
+error_code createTemporaryFile(const Twine &Prefix, StringRef Suffix,
+ int &ResultFD,
+ SmallVectorImpl<char> &ResultPath);
+
+/// @brief Simpler version for clients that don't want an open file.
+error_code createTemporaryFile(const Twine &Prefix, StringRef Suffix,
+ SmallVectorImpl<char> &ResultPath);
error_code createUniqueDirectory(const Twine &Prefix,
SmallVectorImpl<char> &ResultPath);
+enum OpenFlags {
+ F_None = 0,
+
+ /// F_Excl - When opening a file, this flag makes raw_fd_ostream
+ /// report an error if the file already exists.
+ F_Excl = 1,
+
+ /// F_Append - When opening a file, if it already exists append to the
+ /// existing file instead of returning an error. This may not be specified
+ /// with F_Excl.
+ F_Append = 2,
+
+ /// F_Binary - The file should be opened in binary mode on platforms that
+ /// make this distinction.
+ F_Binary = 4
+};
+
+inline OpenFlags operator|(OpenFlags A, OpenFlags B) {
+ return OpenFlags(unsigned(A) | unsigned(B));
+}
+
+inline OpenFlags &operator|=(OpenFlags &A, OpenFlags B) {
+ A = A | B;
+ return A;
+}
+
+error_code openFileForWrite(const Twine &Name, int &ResultFD, OpenFlags Flags,
+ unsigned Mode = 0666);
+
+error_code openFileForRead(const Twine &Name, int &ResultFD);
+
/// @brief Canonicalize path.
///
/// Sets result to the file system's idea of what path is. The result is always
projects / oota-llvm.git / blobdiff