static error_code TempDir(SmallVectorImpl<char> &result) {
// FIXME: Don't use TMPDIR if program is SUID or SGID enabled.
- const char *dir = 0;
+ const char *dir = nullptr;
(dir = std::getenv("TMPDIR")) || (dir = std::getenv("TMP")) ||
(dir = std::getenv("TEMP")) || (dir = std::getenv("TEMPDIR")) ||
#ifdef P_tmpdir
result.clear();
StringRef d(dir);
result.append(d.begin(), d.end());
- return error_code::success();
+ return error_code();
}
namespace llvm {
!llvm::sys::fs::status(".", DotStatus) &&
PWDStatus.getUniqueID() == DotStatus.getUniqueID()) {
result.append(pwd, pwd + strlen(pwd));
- return error_code::success();
+ return error_code();
}
#ifdef MAXPATHLEN
#endif
while (true) {
- if (::getcwd(result.data(), result.capacity()) == 0) {
+ if (::getcwd(result.data(), result.capacity()) == nullptr) {
// See if there was a real error.
- if (errno != errc::not_enough_memory)
- return error_code(errno, system_category());
+ if (errno != ENOMEM)
+ return error_code(errno, generic_category());
// Otherwise there just wasn't enough space.
result.reserve(result.capacity() * 2);
} else
}
result.set_size(strlen(result.data()));
- return error_code::success();
+ return error_code();
}
error_code create_directory(const Twine &path, bool IgnoreExisting) {
StringRef p = path.toNullTerminatedStringRef(path_storage);
if (::mkdir(p.begin(), S_IRWXU | S_IRWXG) == -1) {
- if (errno != errc::file_exists || !IgnoreExisting)
- return error_code(errno, system_category());
+ if (errno != EEXIST || !IgnoreExisting)
+ return error_code(errno, generic_category());
}
- return error_code::success();
+ return error_code();
}
error_code normalize_separators(SmallVectorImpl<char> &Path) {
*PI = '/';
}
}
- return error_code::success();
+ return error_code();
}
// Note that we are using symbolic link because hard links are not supported by
StringRef t = to.toNullTerminatedStringRef(to_storage);
if (::symlink(t.begin(), f.begin()) == -1)
- return error_code(errno, system_category());
+ return error_code(errno, generic_category());
- return error_code::success();
+ return error_code();
}
error_code remove(const Twine &path, bool IgnoreNonExisting) {
struct stat buf;
if (lstat(p.begin(), &buf) != 0) {
- if (errno != errc::no_such_file_or_directory || !IgnoreNonExisting)
- return error_code(errno, system_category());
- return error_code::success();
+ if (errno != ENOENT || !IgnoreNonExisting)
+ return error_code(errno, generic_category());
+ return error_code();
}
// Note: this check catches strange situations. In all cases, LLVM should
// effectively prevents LLVM from erasing things like /dev/null, any block
// special file, or other things that aren't "regular" files.
if (!S_ISREG(buf.st_mode) && !S_ISDIR(buf.st_mode) && !S_ISLNK(buf.st_mode))
- return make_error_code(errc::operation_not_permitted);
+ return make_error_code(std::errc::operation_not_permitted);
if (::remove(p.begin()) == -1) {
- if (errno != errc::no_such_file_or_directory || !IgnoreNonExisting)
- return error_code(errno, system_category());
+ if (errno != ENOENT || !IgnoreNonExisting)
+ return error_code(errno, generic_category());
}
- return error_code::success();
+ return error_code();
}
error_code rename(const Twine &from, const Twine &to) {
StringRef t = to.toNullTerminatedStringRef(to_storage);
if (::rename(f.begin(), t.begin()) == -1)
- return error_code(errno, system_category());
+ return error_code(errno, generic_category());
- return error_code::success();
+ return error_code();
}
error_code resize_file(const Twine &path, uint64_t size) {
StringRef p = path.toNullTerminatedStringRef(path_storage);
if (::truncate(p.begin(), size) == -1)
- return error_code(errno, system_category());
+ return error_code(errno, generic_category());
- return error_code::success();
+ return error_code();
}
error_code exists(const Twine &path, bool &result) {
StringRef p = path.toNullTerminatedStringRef(path_storage);
if (::access(p.begin(), F_OK) == -1) {
- if (errno != errc::no_such_file_or_directory)
- return error_code(errno, system_category());
+ if (errno != ENOENT)
+ return error_code(errno, generic_category());
result = false;
} else
result = true;
- return error_code::success();
+ return error_code();
}
bool can_write(const Twine &Path) {
if (error_code ec = status(A, fsA)) return ec;
if (error_code ec = status(B, fsB)) return ec;
result = equivalent(fsA, fsB);
- return error_code::success();
+ return error_code();
}
static error_code fillStatus(int StatRet, const struct stat &Status,
file_status &Result) {
if (StatRet != 0) {
- error_code ec(errno, system_category());
- if (ec == errc::no_such_file_or_directory)
+ error_code ec(errno, generic_category());
+ if (ec == std::errc::no_such_file_or_directory)
Result = file_status(file_type::file_not_found);
else
Result = file_status(file_type::status_error);
file_status(Type, Perms, Status.st_dev, Status.st_ino, Status.st_mtime,
Status.st_uid, Status.st_gid, Status.st_size);
- return error_code::success();
+ return error_code();
}
error_code status(const Twine &Path, file_status &Result) {
Times[0].tv_nsec = 0;
Times[1] = Times[0];
if (::futimens(FD, Times))
- return error_code(errno, system_category());
- return error_code::success();
+ return error_code(errno, generic_category());
+ return error_code();
#elif defined(HAVE_FUTIMES)
timeval Times[2];
Times[0].tv_sec = Time.toEpochTime();
Times[0].tv_usec = 0;
Times[1] = Times[0];
if (::futimes(FD, Times))
- return error_code(errno, system_category());
- return error_code::success();
+ return error_code(errno, generic_category());
+ return error_code();
#else
#warning Missing futimes() and futimens()
- return make_error_code(errc::not_supported);
+ return make_error_code(std::errc::not_supported);
#endif
}
// Figure out how large the file is.
struct stat FileInfo;
if (fstat(FD, &FileInfo) == -1)
- return error_code(errno, system_category());
+ return error_code(errno, generic_category());
uint64_t FileSize = FileInfo.st_size;
if (Size == 0)
else if (FileSize < Size) {
// We need to grow the file.
if (ftruncate(FD, Size) == -1)
- return error_code(errno, system_category());
+ return error_code(errno, generic_category());
}
int flags = (Mode == readwrite) ? MAP_SHARED : MAP_PRIVATE;
#ifdef MAP_FILE
flags |= MAP_FILE;
#endif
- Mapping = ::mmap(0, Size, prot, flags, FD, Offset);
+ Mapping = ::mmap(nullptr, Size, prot, flags, FD, Offset);
if (Mapping == MAP_FAILED)
- return error_code(errno, system_category());
- return error_code::success();
+ return error_code(errno, generic_category());
+ return error_code();
}
mapped_file_region::mapped_file_region(const Twine &path,
, Mapping() {
// Make sure that the requested size fits within SIZE_T.
if (length > std::numeric_limits<size_t>::max()) {
- ec = make_error_code(errc::invalid_argument);
+ ec = make_error_code(std::errc::invalid_argument);
return;
}
int oflags = (mode == readonly) ? O_RDONLY : O_RDWR;
int ofd = ::open(name.begin(), oflags);
if (ofd == -1) {
- ec = error_code(errno, system_category());
+ ec = error_code(errno, generic_category());
return;
}
ec = init(ofd, true, offset);
if (ec)
- Mapping = 0;
+ Mapping = nullptr;
}
mapped_file_region::mapped_file_region(int fd,
, Mapping() {
// Make sure that the requested size fits within SIZE_T.
if (length > std::numeric_limits<size_t>::max()) {
- ec = make_error_code(errc::invalid_argument);
+ ec = make_error_code(std::errc::invalid_argument);
return;
}
ec = init(fd, closefd, offset);
if (ec)
- Mapping = 0;
+ Mapping = nullptr;
}
mapped_file_region::~mapped_file_region() {
mapped_file_region::mapped_file_region(mapped_file_region &&other)
: Mode(other.Mode), Size(other.Size), Mapping(other.Mapping) {
- other.Mapping = 0;
+ other.Mapping = nullptr;
}
mapped_file_region::mapmode mapped_file_region::flags() const {
StringRef path){
SmallString<128> path_null(path);
DIR *directory = ::opendir(path_null.c_str());
- if (directory == 0)
- return error_code(errno, system_category());
+ if (!directory)
+ return error_code(errno, generic_category());
it.IterationHandle = reinterpret_cast<intptr_t>(directory);
// Add something for replace_filename to replace.
::closedir(reinterpret_cast<DIR *>(it.IterationHandle));
it.IterationHandle = 0;
it.CurrentEntry = directory_entry();
- return error_code::success();
+ return error_code();
}
error_code detail::directory_iterator_increment(detail::DirIterState &it) {
errno = 0;
dirent *cur_dir = ::readdir(reinterpret_cast<DIR *>(it.IterationHandle));
- if (cur_dir == 0 && errno != 0) {
- return error_code(errno, system_category());
- } else if (cur_dir != 0) {
+ if (cur_dir == nullptr && errno != 0) {
+ return error_code(errno, generic_category());
+ } else if (cur_dir != nullptr) {
StringRef name(cur_dir->d_name, NAMLEN(cur_dir));
if ((name.size() == 1 && name[0] == '.') ||
(name.size() == 2 && name[0] == '.' && name[1] == '.'))
} else
return directory_iterator_destruct(it);
- return error_code::success();
+ return error_code();
}
error_code get_magic(const Twine &path, uint32_t len,
// Open path.
std::FILE *file = std::fopen(Path.data(), "rb");
- if (file == 0)
- return error_code(errno, system_category());
+ if (!file)
+ return error_code(errno, generic_category());
// Reserve storage.
result.reserve(len);
size_t size = std::fread(result.data(), 1, len, file);
if (std::ferror(file) != 0) {
std::fclose(file);
- return error_code(errno, system_category());
+ return error_code(errno, generic_category());
} else if (size != len) {
if (std::feof(file) != 0) {
std::fclose(file);
result.set_size(size);
- return make_error_code(errc::value_too_large);
+ return make_error_code(std::errc::value_too_large);
}
}
std::fclose(file);
result.set_size(size);
- return error_code::success();
-}
-
-error_code map_file_pages(const Twine &path, off_t file_offset, size_t size,
- bool map_writable, void *&result) {
- SmallString<128> path_storage;
- StringRef name = path.toNullTerminatedStringRef(path_storage);
- int oflags = map_writable ? O_RDWR : O_RDONLY;
- int ofd = ::open(name.begin(), oflags);
- if ( ofd == -1 )
- return error_code(errno, system_category());
- AutoFD fd(ofd);
- int flags = map_writable ? MAP_SHARED : MAP_PRIVATE;
- int prot = map_writable ? (PROT_READ|PROT_WRITE) : PROT_READ;
-#ifdef MAP_FILE
- flags |= MAP_FILE;
-#endif
- result = ::mmap(0, size, prot, flags, fd, file_offset);
- if (result == MAP_FAILED) {
- return error_code(errno, system_category());
- }
-
- return error_code::success();
-}
-
-error_code unmap_file_pages(void *base, size_t size) {
- if ( ::munmap(base, size) == -1 )
- return error_code(errno, system_category());
-
- return error_code::success();
+ return error_code();
}
error_code openFileForRead(const Twine &Name, int &ResultFD) {
StringRef P = Name.toNullTerminatedStringRef(Storage);
while ((ResultFD = open(P.begin(), O_RDONLY)) < 0) {
if (errno != EINTR)
- return error_code(errno, system_category());
+ return error_code(errno, generic_category());
}
- return error_code::success();
+ return error_code();
}
error_code openFileForWrite(const Twine &Name, int &ResultFD,
StringRef P = Name.toNullTerminatedStringRef(Storage);
while ((ResultFD = open(P.begin(), OpenFlags, Mode)) < 0) {
if (errno != EINTR)
- return error_code(errno, system_category());
+ return error_code(errno, generic_category());
}
- return error_code::success();
+ return error_code();
}
} // end namespace fs
projects / oota-llvm.git / blobdiff