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author | Devtools Arcadia <arcadia-devtools@yandex-team.ru> | 2022-02-07 18:08:42 +0300 |
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committer | Devtools Arcadia <arcadia-devtools@mous.vla.yp-c.yandex.net> | 2022-02-07 18:08:42 +0300 |
commit | 1110808a9d39d4b808aef724c861a2e1a38d2a69 (patch) | |
tree | e26c9fed0de5d9873cce7e00bc214573dc2195b7 /contrib/libs/poco/Foundation/src/File_WIN32.cpp | |
download | ydb-1110808a9d39d4b808aef724c861a2e1a38d2a69.tar.gz |
intermediate changes
ref:cde9a383711a11544ce7e107a78147fb96cc4029
Diffstat (limited to 'contrib/libs/poco/Foundation/src/File_WIN32.cpp')
-rw-r--r-- | contrib/libs/poco/Foundation/src/File_WIN32.cpp | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/contrib/libs/poco/Foundation/src/File_WIN32.cpp b/contrib/libs/poco/Foundation/src/File_WIN32.cpp new file mode 100644 index 0000000000..2ab9605c8c --- /dev/null +++ b/contrib/libs/poco/Foundation/src/File_WIN32.cpp @@ -0,0 +1,465 @@ +// +// File_WIN32.cpp +// +// Library: Foundation +// Package: Filesystem +// Module: File +// +// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH. +// and Contributors. +// +// SPDX-License-Identifier: BSL-1.0 +// + + +#include "Poco/File_WIN32.h" +#include "Poco/Exception.h" +#include "Poco/String.h" +#include "Poco/UnWindows.h" + + +namespace Poco { + + +class FileHandle +{ +public: + FileHandle(const std::string& path, DWORD access, DWORD share, DWORD disp) + { + _h = CreateFileA(path.c_str(), access, share, 0, disp, 0, 0); + if (_h == INVALID_HANDLE_VALUE) + { + FileImpl::handleLastErrorImpl(path); + } + } + + ~FileHandle() + { + if (_h != INVALID_HANDLE_VALUE) CloseHandle(_h); + } + + HANDLE get() const + { + return _h; + } + +private: + HANDLE _h; +}; + + +FileImpl::FileImpl() +{ +} + + +FileImpl::FileImpl(const std::string& path): _path(path) +{ + std::string::size_type n = _path.size(); + if (n > 1 && (_path[n - 1] == '\\' || _path[n - 1] == '/') && !((n == 3 && _path[1]==':'))) + { + _path.resize(n - 1); + } +} + + +FileImpl::~FileImpl() +{ +} + + +void FileImpl::swapImpl(FileImpl& file) +{ + std::swap(_path, file._path); +} + + +void FileImpl::setPathImpl(const std::string& path) +{ + _path = path; + std::string::size_type n = _path.size(); + if (n > 1 && (_path[n - 1] == '\\' || _path[n - 1] == '/') && !((n == 3 && _path[1]==':'))) + { + _path.resize(n - 1); + } +} + + +bool FileImpl::existsImpl() const +{ + poco_assert (!_path.empty()); + + DWORD attr = GetFileAttributes(_path.c_str()); + if (attr == INVALID_FILE_ATTRIBUTES) + { + switch (GetLastError()) + { + case ERROR_FILE_NOT_FOUND: + case ERROR_PATH_NOT_FOUND: + case ERROR_NOT_READY: + case ERROR_INVALID_DRIVE: + return false; + default: + handleLastErrorImpl(_path); + } + } + return true; +} + + +bool FileImpl::canReadImpl() const +{ + poco_assert (!_path.empty()); + + DWORD attr = GetFileAttributes(_path.c_str()); + if (attr == INVALID_FILE_ATTRIBUTES) + { + switch (GetLastError()) + { + case ERROR_ACCESS_DENIED: + return false; + default: + handleLastErrorImpl(_path); + } + } + return true; +} + + +bool FileImpl::canWriteImpl() const +{ + poco_assert (!_path.empty()); + + DWORD attr = GetFileAttributes(_path.c_str()); + if (attr == INVALID_FILE_ATTRIBUTES) + handleLastErrorImpl(_path); + return (attr & FILE_ATTRIBUTE_READONLY) == 0; +} + + +bool FileImpl::canExecuteImpl() const +{ + Path p(_path); + return icompare(p.getExtension(), "exe") == 0; +} + + +bool FileImpl::isFileImpl() const +{ + return !isDirectoryImpl() && !isDeviceImpl(); +} + + +bool FileImpl::isDirectoryImpl() const +{ + poco_assert (!_path.empty()); + + DWORD attr = GetFileAttributes(_path.c_str()); + if (attr == INVALID_FILE_ATTRIBUTES) + handleLastErrorImpl(_path); + return (attr & FILE_ATTRIBUTE_DIRECTORY) != 0; +} + + +bool FileImpl::isLinkImpl() const +{ + poco_assert (!_path.empty()); + + DWORD attr = GetFileAttributes(_path.c_str()); + if (attr == INVALID_FILE_ATTRIBUTES) + handleLastErrorImpl(_path); + return (attr & FILE_ATTRIBUTE_DIRECTORY) == 0 && (attr & FILE_ATTRIBUTE_REPARSE_POINT) != 0; +} + + + +bool FileImpl::isDeviceImpl() const +{ + return + _path.compare(0, 4, "\\\\.\\") == 0 || + icompare(_path, "CON") == 0 || + icompare(_path, "PRN") == 0 || + icompare(_path, "AUX") == 0 || + icompare(_path, "NUL") == 0 || + ( (icompare(_path, 0, 3, "LPT") == 0 || icompare(_path, 0, 3, "COM") == 0) && + _path.size() == 4 && + _path[3] > 0x30 && + isdigit(_path[3]) + ); +} + + +bool FileImpl::isHiddenImpl() const +{ + poco_assert (!_path.empty()); + + DWORD attr = GetFileAttributes(_path.c_str()); + if (attr == INVALID_FILE_ATTRIBUTES) + handleLastErrorImpl(_path); + return (attr & FILE_ATTRIBUTE_HIDDEN) != 0; +} + + +Timestamp FileImpl::createdImpl() const +{ + poco_assert (!_path.empty()); + + WIN32_FILE_ATTRIBUTE_DATA fad; + if (GetFileAttributesEx(_path.c_str(), GetFileExInfoStandard, &fad) == 0) + handleLastErrorImpl(_path); + return Timestamp::fromFileTimeNP(fad.ftCreationTime.dwLowDateTime, fad.ftCreationTime.dwHighDateTime); +} + + +Timestamp FileImpl::getLastModifiedImpl() const +{ + poco_assert (!_path.empty()); + + WIN32_FILE_ATTRIBUTE_DATA fad; + if (GetFileAttributesEx(_path.c_str(), GetFileExInfoStandard, &fad) == 0) + handleLastErrorImpl(_path); + return Timestamp::fromFileTimeNP(fad.ftLastWriteTime.dwLowDateTime, fad.ftLastWriteTime.dwHighDateTime); +} + + +void FileImpl::setLastModifiedImpl(const Timestamp& ts) +{ + poco_assert (!_path.empty()); + + UInt32 low; + UInt32 high; + ts.toFileTimeNP(low, high); + FILETIME ft; + ft.dwLowDateTime = low; + ft.dwHighDateTime = high; + FileHandle fh(_path, FILE_WRITE_ATTRIBUTES, FILE_SHARE_READ | FILE_SHARE_WRITE, OPEN_EXISTING); + if (SetFileTime(fh.get(), 0, &ft, &ft) == 0) + handleLastErrorImpl(_path); +} + + +FileImpl::FileSizeImpl FileImpl::getSizeImpl() const +{ + poco_assert (!_path.empty()); + + WIN32_FILE_ATTRIBUTE_DATA fad; + if (GetFileAttributesEx(_path.c_str(), GetFileExInfoStandard, &fad) == 0) + handleLastErrorImpl(_path); + LARGE_INTEGER li; + li.LowPart = fad.nFileSizeLow; + li.HighPart = fad.nFileSizeHigh; + return li.QuadPart; +} + + +void FileImpl::setSizeImpl(FileSizeImpl size) +{ + poco_assert (!_path.empty()); + + FileHandle fh(_path, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, OPEN_EXISTING); + LARGE_INTEGER li; + li.QuadPart = size; + if (SetFilePointer(fh.get(), li.LowPart, &li.HighPart, FILE_BEGIN) == INVALID_SET_FILE_POINTER) + handleLastErrorImpl(_path); + if (SetEndOfFile(fh.get()) == 0) + handleLastErrorImpl(_path); +} + + +void FileImpl::setWriteableImpl(bool flag) +{ + poco_assert (!_path.empty()); + + DWORD attr = GetFileAttributes(_path.c_str()); + if (attr == -1) + handleLastErrorImpl(_path); + if (flag) + attr &= ~FILE_ATTRIBUTE_READONLY; + else + attr |= FILE_ATTRIBUTE_READONLY; + if (SetFileAttributes(_path.c_str(), attr) == 0) + handleLastErrorImpl(_path); +} + + +void FileImpl::setExecutableImpl(bool /*flag*/) +{ + // not supported +} + + +void FileImpl::copyToImpl(const std::string& path) const +{ + poco_assert (!_path.empty()); + + if (CopyFileA(_path.c_str(), path.c_str(), FALSE) == 0) + handleLastErrorImpl(_path); +} + + +void FileImpl::renameToImpl(const std::string& path) +{ + poco_assert (!_path.empty()); + + if (MoveFileExA(_path.c_str(), path.c_str(), MOVEFILE_REPLACE_EXISTING) == 0) + handleLastErrorImpl(_path); +} + + +void FileImpl::linkToImpl(const std::string& path, int type) const +{ + poco_assert (!_path.empty()); + + if (type == 0) + { + if (CreateHardLinkA(path.c_str(), _path.c_str(), NULL) == 0) + handleLastErrorImpl(_path); + } + else + { +#if _WIN32_WINNT >= 0x0600 && defined(SYMBOLIC_LINK_FLAG_DIRECTORY) + DWORD flags = 0; + if (isDirectoryImpl()) flags |= SYMBOLIC_LINK_FLAG_DIRECTORY; +#ifdef SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE + flags |= SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE; +#endif + if (CreateSymbolicLinkA(path.c_str(), _path.c_str(), flags) == 0) + handleLastErrorImpl(_path); +#else + throw Poco::NotImplementedException("Symbolic link support not available in used version of the Windows SDK") +#endif + + } +} + + +void FileImpl::removeImpl() +{ + poco_assert (!_path.empty()); + + if (isDirectoryImpl()) + { + if (RemoveDirectoryA(_path.c_str()) == 0) + handleLastErrorImpl(_path); + } + else + { + if (DeleteFileA(_path.c_str()) == 0) + handleLastErrorImpl(_path); + } +} + + +bool FileImpl::createFileImpl() +{ + poco_assert (!_path.empty()); + + HANDLE hFile = CreateFileA(_path.c_str(), GENERIC_WRITE, 0, 0, CREATE_NEW, 0, 0); + if (hFile != INVALID_HANDLE_VALUE) + { + CloseHandle(hFile); + return true; + } + else if (GetLastError() == ERROR_FILE_EXISTS) + return false; + else + handleLastErrorImpl(_path); + return false; +} + + +bool FileImpl::createDirectoryImpl() +{ + poco_assert (!_path.empty()); + + if (existsImpl() && isDirectoryImpl()) + return false; + if (CreateDirectoryA(_path.c_str(), 0) == 0) + handleLastErrorImpl(_path); + return true; +} + + +FileImpl::FileSizeImpl FileImpl::totalSpaceImpl() const +{ + poco_assert(!_path.empty()); + + ULARGE_INTEGER space; + if (!GetDiskFreeSpaceExA(_path.c_str(), NULL, &space, NULL)) + handleLastErrorImpl(_path); + return space.QuadPart; +} + + +FileImpl::FileSizeImpl FileImpl::usableSpaceImpl() const +{ + poco_assert(!_path.empty()); + + ULARGE_INTEGER space; + if (!GetDiskFreeSpaceExA(upath.c_str(), &space, NULL, NULL)) + handleLastErrorImpl(_path); + return space.QuadPart; +} + + +FileImpl::FileSizeImpl FileImpl::freeSpaceImpl() const +{ + poco_assert(!_path.empty()); + + ULARGE_INTEGER space; + if (!GetDiskFreeSpaceExA(_path.c_str(), NULL, NULL, &space)) + handleLastErrorImpl(_path); + return space.QuadPart; +} + + +void FileImpl::handleLastErrorImpl(const std::string& path) +{ + DWORD err = GetLastError(); + switch (err) + { + case ERROR_FILE_NOT_FOUND: + throw FileNotFoundException(path, err); + case ERROR_PATH_NOT_FOUND: + case ERROR_BAD_NETPATH: + case ERROR_CANT_RESOLVE_FILENAME: + case ERROR_INVALID_DRIVE: + throw PathNotFoundException(path, err); + case ERROR_ACCESS_DENIED: + throw FileAccessDeniedException(path, err); + case ERROR_ALREADY_EXISTS: + case ERROR_FILE_EXISTS: + throw FileExistsException(path, err); + case ERROR_INVALID_NAME: + case ERROR_DIRECTORY: + case ERROR_FILENAME_EXCED_RANGE: + case ERROR_BAD_PATHNAME: + throw PathSyntaxException(path, err); + case ERROR_FILE_READ_ONLY: + throw FileReadOnlyException(path, err); + case ERROR_CANNOT_MAKE: + throw CreateFileException(path, err); + case ERROR_DIR_NOT_EMPTY: + throw DirectoryNotEmptyException(path, err); + case ERROR_WRITE_FAULT: + throw WriteFileException(path, err); + case ERROR_READ_FAULT: + throw ReadFileException(path, err); + case ERROR_SHARING_VIOLATION: + throw FileException("sharing violation", path, err); + case ERROR_LOCK_VIOLATION: + throw FileException("lock violation", path, err); + case ERROR_HANDLE_EOF: + throw ReadFileException("EOF reached", path, err); + case ERROR_HANDLE_DISK_FULL: + case ERROR_DISK_FULL: + throw WriteFileException("disk is full", path, err); + case ERROR_NEGATIVE_SEEK: + throw FileException("negative seek", path, err); + default: + throw FileException(path, err); + } +} + + +} // namespace Poco |