diff options
Diffstat (limited to 'lib/Support/Unix/Path.inc')
| -rw-r--r-- | lib/Support/Unix/Path.inc | 200 |
1 files changed, 71 insertions, 129 deletions
diff --git a/lib/Support/Unix/Path.inc b/lib/Support/Unix/Path.inc index 519a016..623547a 100644 --- a/lib/Support/Unix/Path.inc +++ b/lib/Support/Unix/Path.inc @@ -87,7 +87,7 @@ namespace { }; } -static error_code TempDir(SmallVectorImpl<char> &result) { +static std::error_code TempDir(SmallVectorImpl<char> &result) { // FIXME: Don't use TMPDIR if program is SUID or SGID enabled. const char *dir = nullptr; (dir = std::getenv("TMPDIR")) || (dir = std::getenv("TMP")) || @@ -100,7 +100,7 @@ static error_code TempDir(SmallVectorImpl<char> &result) { result.clear(); StringRef d(dir); result.append(d.begin(), d.end()); - return error_code::success(); + return std::error_code(); } namespace llvm { @@ -225,7 +225,7 @@ UniqueID file_status::getUniqueID() const { return UniqueID(fs_st_dev, fs_st_ino); } -error_code current_path(SmallVectorImpl<char> &result) { +std::error_code current_path(SmallVectorImpl<char> &result) { result.clear(); const char *pwd = ::getenv("PWD"); @@ -235,7 +235,7 @@ error_code current_path(SmallVectorImpl<char> &result) { !llvm::sys::fs::status(".", DotStatus) && PWDStatus.getUniqueID() == DotStatus.getUniqueID()) { result.append(pwd, pwd + strlen(pwd)); - return error_code::success(); + return std::error_code(); } #ifdef MAXPATHLEN @@ -248,8 +248,8 @@ error_code current_path(SmallVectorImpl<char> &result) { while (true) { 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 std::error_code(errno, std::generic_category()); // Otherwise there just wasn't enough space. result.reserve(result.capacity() * 2); } else @@ -257,22 +257,22 @@ error_code current_path(SmallVectorImpl<char> &result) { } result.set_size(strlen(result.data())); - return error_code::success(); + return std::error_code(); } -error_code create_directory(const Twine &path, bool IgnoreExisting) { +std::error_code create_directory(const Twine &path, bool IgnoreExisting) { SmallString<128> path_storage; 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 std::error_code(errno, std::generic_category()); } - return error_code::success(); + return std::error_code(); } -error_code normalize_separators(SmallVectorImpl<char> &Path) { +std::error_code normalize_separators(SmallVectorImpl<char> &Path) { for (auto PI = Path.begin(), PE = Path.end(); PI < PE; ++PI) { if (*PI == '\\') { auto PN = PI + 1; @@ -282,12 +282,12 @@ error_code normalize_separators(SmallVectorImpl<char> &Path) { *PI = '/'; } } - return error_code::success(); + return std::error_code(); } // Note that we are using symbolic link because hard links are not supported by // all filesystems (SMB doesn't). -error_code create_link(const Twine &to, const Twine &from) { +std::error_code create_link(const Twine &to, const Twine &from) { // Get arguments. SmallString<128> from_storage; SmallString<128> to_storage; @@ -295,20 +295,20 @@ error_code create_link(const Twine &to, const Twine &from) { StringRef t = to.toNullTerminatedStringRef(to_storage); if (::symlink(t.begin(), f.begin()) == -1) - return error_code(errno, system_category()); + return std::error_code(errno, std::generic_category()); - return error_code::success(); + return std::error_code(); } -error_code remove(const Twine &path, bool IgnoreNonExisting) { +std::error_code remove(const Twine &path, bool IgnoreNonExisting) { SmallString<128> path_storage; StringRef p = path.toNullTerminatedStringRef(path_storage); 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 std::error_code(errno, std::generic_category()); + return std::error_code(); } // Note: this check catches strange situations. In all cases, LLVM should @@ -320,14 +320,14 @@ error_code remove(const Twine &path, bool IgnoreNonExisting) { return make_error_code(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 std::error_code(errno, std::generic_category()); } - return error_code::success(); + return std::error_code(); } -error_code rename(const Twine &from, const Twine &to) { +std::error_code rename(const Twine &from, const Twine &to) { // Get arguments. SmallString<128> from_storage; SmallString<128> to_storage; @@ -335,33 +335,33 @@ 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 std::error_code(errno, std::generic_category()); - return error_code::success(); + return std::error_code(); } -error_code resize_file(const Twine &path, uint64_t size) { +std::error_code resize_file(const Twine &path, uint64_t size) { SmallString<128> path_storage; StringRef p = path.toNullTerminatedStringRef(path_storage); if (::truncate(p.begin(), size) == -1) - return error_code(errno, system_category()); + return std::error_code(errno, std::generic_category()); - return error_code::success(); + return std::error_code(); } -error_code exists(const Twine &path, bool &result) { +std::error_code exists(const Twine &path, bool &result) { SmallString<128> path_storage; 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 std::error_code(errno, std::generic_category()); result = false; } else result = true; - return error_code::success(); + return std::error_code(); } bool can_write(const Twine &Path) { @@ -390,18 +390,20 @@ bool equivalent(file_status A, file_status B) { A.fs_st_ino == B.fs_st_ino; } -error_code equivalent(const Twine &A, const Twine &B, bool &result) { +std::error_code equivalent(const Twine &A, const Twine &B, bool &result) { file_status fsA, fsB; - if (error_code ec = status(A, fsA)) return ec; - if (error_code ec = status(B, fsB)) return ec; + if (std::error_code ec = status(A, fsA)) + return ec; + if (std::error_code ec = status(B, fsB)) + return ec; result = equivalent(fsA, fsB); - return error_code::success(); + return std::error_code(); } -static error_code fillStatus(int StatRet, const struct stat &Status, +static std::error_code fillStatus(int StatRet, const struct stat &Status, file_status &Result) { if (StatRet != 0) { - error_code ec(errno, system_category()); + std::error_code ec(errno, std::generic_category()); if (ec == errc::no_such_file_or_directory) Result = file_status(file_type::file_not_found); else @@ -429,10 +431,10 @@ static error_code fillStatus(int StatRet, const struct stat &Status, 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 std::error_code(); } -error_code status(const Twine &Path, file_status &Result) { +std::error_code status(const Twine &Path, file_status &Result) { SmallString<128> PathStorage; StringRef P = Path.toNullTerminatedStringRef(PathStorage); @@ -441,36 +443,36 @@ error_code status(const Twine &Path, file_status &Result) { return fillStatus(StatRet, Status, Result); } -error_code status(int FD, file_status &Result) { +std::error_code status(int FD, file_status &Result) { struct stat Status; int StatRet = ::fstat(FD, &Status); return fillStatus(StatRet, Status, Result); } -error_code setLastModificationAndAccessTime(int FD, TimeValue Time) { +std::error_code setLastModificationAndAccessTime(int FD, TimeValue Time) { #if defined(HAVE_FUTIMENS) timespec Times[2]; Times[0].tv_sec = Time.toEpochTime(); Times[0].tv_nsec = 0; Times[1] = Times[0]; if (::futimens(FD, Times)) - return error_code(errno, system_category()); - return error_code::success(); + return std::error_code(errno, std::generic_category()); + return std::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 std::error_code(errno, std::generic_category()); + return std::error_code(); #else #warning Missing futimes() and futimens() - return make_error_code(errc::not_supported); + return make_error_code(errc::function_not_supported); #endif } -error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) { +std::error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) { AutoFD ScopedFD(FD); if (!CloseFD) ScopedFD.take(); @@ -478,7 +480,7 @@ error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) { // Figure out how large the file is. struct stat FileInfo; if (fstat(FD, &FileInfo) == -1) - return error_code(errno, system_category()); + return std::error_code(errno, std::generic_category()); uint64_t FileSize = FileInfo.st_size; if (Size == 0) @@ -486,7 +488,7 @@ error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) { else if (FileSize < Size) { // We need to grow the file. if (ftruncate(FD, Size) == -1) - return error_code(errno, system_category()); + return std::error_code(errno, std::generic_category()); } int flags = (Mode == readwrite) ? MAP_SHARED : MAP_PRIVATE; @@ -496,15 +498,15 @@ error_code mapped_file_region::init(int FD, bool CloseFD, uint64_t Offset) { #endif Mapping = ::mmap(nullptr, Size, prot, flags, FD, Offset); if (Mapping == MAP_FAILED) - return error_code(errno, system_category()); - return error_code::success(); + return std::error_code(errno, std::generic_category()); + return std::error_code(); } mapped_file_region::mapped_file_region(const Twine &path, mapmode mode, uint64_t length, uint64_t offset, - error_code &ec) + std::error_code &ec) : Mode(mode) , Size(length) , Mapping() { @@ -519,7 +521,7 @@ mapped_file_region::mapped_file_region(const Twine &path, int oflags = (mode == readonly) ? O_RDONLY : O_RDWR; int ofd = ::open(name.begin(), oflags); if (ofd == -1) { - ec = error_code(errno, system_category()); + ec = std::error_code(errno, std::generic_category()); return; } @@ -533,7 +535,7 @@ mapped_file_region::mapped_file_region(int fd, mapmode mode, uint64_t length, uint64_t offset, - error_code &ec) + std::error_code &ec) : Mode(mode) , Size(length) , Mapping() { @@ -583,12 +585,12 @@ int mapped_file_region::alignment() { return process::get_self()->page_size(); } -error_code detail::directory_iterator_construct(detail::DirIterState &it, +std::error_code detail::directory_iterator_construct(detail::DirIterState &it, StringRef path){ SmallString<128> path_null(path); DIR *directory = ::opendir(path_null.c_str()); if (!directory) - return error_code(errno, system_category()); + return std::error_code(errno, std::generic_category()); it.IterationHandle = reinterpret_cast<intptr_t>(directory); // Add something for replace_filename to replace. @@ -597,19 +599,19 @@ error_code detail::directory_iterator_construct(detail::DirIterState &it, return directory_iterator_increment(it); } -error_code detail::directory_iterator_destruct(detail::DirIterState &it) { +std::error_code detail::directory_iterator_destruct(detail::DirIterState &it) { if (it.IterationHandle) ::closedir(reinterpret_cast<DIR *>(it.IterationHandle)); it.IterationHandle = 0; it.CurrentEntry = directory_entry(); - return error_code::success(); + return std::error_code(); } -error_code detail::directory_iterator_increment(detail::DirIterState &it) { +std::error_code detail::directory_iterator_increment(detail::DirIterState &it) { errno = 0; dirent *cur_dir = ::readdir(reinterpret_cast<DIR *>(it.IterationHandle)); if (cur_dir == nullptr && errno != 0) { - return error_code(errno, system_category()); + return std::error_code(errno, std::generic_category()); } else if (cur_dir != nullptr) { StringRef name(cur_dir->d_name, NAMLEN(cur_dir)); if ((name.size() == 1 && name[0] == '.') || @@ -619,80 +621,20 @@ error_code detail::directory_iterator_increment(detail::DirIterState &it) { } else return directory_iterator_destruct(it); - return error_code::success(); -} - -error_code get_magic(const Twine &path, uint32_t len, - SmallVectorImpl<char> &result) { - SmallString<128> PathStorage; - StringRef Path = path.toNullTerminatedStringRef(PathStorage); - result.set_size(0); - - // Open path. - std::FILE *file = std::fopen(Path.data(), "rb"); - if (!file) - return error_code(errno, system_category()); - - // Reserve storage. - result.reserve(len); - - // Read magic! - size_t size = std::fread(result.data(), 1, len, file); - if (std::ferror(file) != 0) { - std::fclose(file); - return error_code(errno, system_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); - } - } - 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(nullptr, 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 std::error_code(); } -error_code openFileForRead(const Twine &Name, int &ResultFD) { +std::error_code openFileForRead(const Twine &Name, int &ResultFD) { SmallString<128> Storage; StringRef P = Name.toNullTerminatedStringRef(Storage); while ((ResultFD = open(P.begin(), O_RDONLY)) < 0) { if (errno != EINTR) - return error_code(errno, system_category()); + return std::error_code(errno, std::generic_category()); } - return error_code::success(); + return std::error_code(); } -error_code openFileForWrite(const Twine &Name, int &ResultFD, +std::error_code openFileForWrite(const Twine &Name, int &ResultFD, sys::fs::OpenFlags Flags, unsigned Mode) { // Verify that we don't have both "append" and "excl". assert((!(Flags & sys::fs::F_Excl) || !(Flags & sys::fs::F_Append)) && @@ -717,9 +659,9 @@ 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 std::error_code(errno, std::generic_category()); } - return error_code::success(); + return std::error_code(); } } // end namespace fs |