diff options
Diffstat (limited to 'src/corelib/io/qtemporaryfile.cpp')
| -rw-r--r-- | src/corelib/io/qtemporaryfile.cpp | 151 |
1 files changed, 102 insertions, 49 deletions
diff --git a/src/corelib/io/qtemporaryfile.cpp b/src/corelib/io/qtemporaryfile.cpp index 79f7a108d1..a0b6c6bbfa 100644 --- a/src/corelib/io/qtemporaryfile.cpp +++ b/src/corelib/io/qtemporaryfile.cpp @@ -49,6 +49,11 @@ #include "private/qfile_p.h" #include "private/qabstractfileengine_p.h" #include "private/qfsfileengine_p.h" +#include "private/qsystemerror_p.h" + +#if defined(Q_OS_SYMBIAN) +#include "private/qcore_symbian_p.h" +#endif #if !defined(Q_OS_WIN) && !defined(Q_OS_SYMBIAN) #include "private/qcore_unix_p.h" // overrides QT_OPEN @@ -83,9 +88,20 @@ struct QConcatenable<Char> } }; +# ifdef Q_OS_WIN +typedef HANDLE NativeFileHandle; +# else // Q_OS_SYMBIAN +# ifdef SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API +typedef RFile64 NativeFileHandle; +# else +typedef RFile NativeFileHandle; +# endif +# endif + #else // POSIX typedef char Char; typedef char Latin1Char; +typedef int NativeFileHandle; #endif struct Placeholder @@ -161,8 +177,9 @@ struct QConcatenable<Placeholder> handle otherwise. In both cases, the string in \a path will be changed and contain the generated path name. */ -static int createFileFromTemplate(QFileSystemEntry::NativePath &path, - size_t pos, size_t length) +static bool createFileFromTemplate(NativeFileHandle &file, + QFileSystemEntry::NativePath &path, size_t pos, size_t length, + QSystemError &error) { Q_ASSERT(length != 0); Q_ASSERT(pos < size_t(path.length())); @@ -192,21 +209,50 @@ static int createFileFromTemplate(QFileSystemEntry::NativePath &path, } } +#ifdef Q_OS_SYMBIAN + RFs& fs = qt_s60GetRFs(); +#endif + for (;;) { // Atomically create file and obtain handle -#if !defined(Q_OS_WIN) && !defined(Q_OS_SYMBIAN) - { - int fd = QT_OPEN(path.constData(), - QT_OPEN_CREAT | O_EXCL | QT_OPEN_RDWR | QT_OPEN_LARGEFILE, - 0600); - if (fd != -1) - return fd; - if (errno != EEXIST) - return -1; +#if defined(Q_OS_WIN) + file = CreateFile((const wchar_t *)path.constData(), + GENERIC_READ | GENERIC_WRITE, + FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, CREATE_NEW, + FILE_ATTRIBUTE_NORMAL, NULL); + + if (file != INVALID_HANDLE_VALUE) + return true; + + DWORD err = GetLastError(); + if (err != ERROR_FILE_EXISTS) { + error = QSystemError(err, QSystemError::NativeError); + return false; + } +#elif defined(Q_OS_SYMBIAN) + TInt err = file.Create(fs, qt_QString2TPtrC(path), + EFileRead | EFileWrite | EFileShareReadersOrWriters); + + if (err == KErrNone) + return true; + + if (err != KErrAlreadyExists) { + error = QSystemError(err, QSystemError::NativeError); + return false; + } +#else // POSIX + file = QT_OPEN(path.constData(), + QT_OPEN_CREAT | O_EXCL | QT_OPEN_RDWR | QT_OPEN_LARGEFILE, + 0600); + + if (file != -1) + return true; + + int err = errno; + if (err != EEXIST) { + error = QSystemError(err, QSystemError::NativeError); + return false; } -#else - if (!QFileInfo(path).exists()) - return 1; #endif /* tricky little algorwwithm for backward compatibility */ @@ -217,8 +263,11 @@ static int createFileFromTemplate(QFileSystemEntry::NativePath &path, case 'Z': // Rollover, advance next character *iter = Latin1Char('a'); - if (++iter == placeholderEnd) - return -1; + if (++iter == placeholderEnd) { + // Out of alternatives. Return file exists error, previously set. + error = QSystemError(err, QSystemError::NativeError); + return false; + } continue; @@ -319,7 +368,14 @@ bool QTemporaryFileEngine::open(QIODevice::OpenMode openMode) if (!filePathIsTemplate) return QFSFileEngine::open(openMode); - const QString qfilename = d->fileEntry.filePath(); + const QString qfilename = +#if !defined(Q_OS_WIN) && !defined(Q_OS_SYMBIAN) + // Since the native encoding is out of our control, we need to process + // the path as UTF-16 before doing any conversions + d->fileEntry.filePath(); +#else + d->fileEntry.nativeFilePath(); +#endif // Find placeholder string. uint phPos = qfilename.length(); @@ -333,8 +389,14 @@ bool QTemporaryFileEngine::open(QIODevice::OpenMode openMode) continue; } - if (qfilename[phPos] == QLatin1Char('/') - || phLength >= 6) { + if (phLength >= 6 + || qfilename[phPos] == +#if !defined(Q_OS_WIN) && !defined(Q_OS_SYMBIAN) + QLatin1Char('/') +#else + QLatin1Char('\\') +#endif + ) { ++phPos; break; } @@ -366,44 +428,35 @@ bool QTemporaryFileEngine::open(QIODevice::OpenMode openMode) filename = qfilename % Latin1Char('.') % Placeholder(phLength); } else filename = qfilename; - - // No native separators, not a "native path" #endif - int fd = createFileFromTemplate(filename, phPos, phLength); + QSystemError error; +#if defined(Q_OS_WIN) + NativeFileHandle &file = d->fileHandle; +#elif defined(Q_OS_SYMBIAN) + NativeFileHandle &file = d->symbianFile; +#else // POSIX + NativeFileHandle &file = d->fd; +#endif -#if !defined(Q_OS_WIN) && !defined(Q_OS_SYMBIAN) - if (fd != -1) { - // First open the fd as an external file descriptor to - // initialize the engine properly. - if (QFSFileEngine::open(openMode, fd)) { + if (!createFileFromTemplate(file, filename, phPos, phLength, error)) { + setError(QFile::OpenError, error.toString()); + return false; + } - // Allow the engine to close the handle even if it's "external". - d->closeFileHandle = true; + d->fileEntry = QFileSystemEntry(filename, QFileSystemEntry::FromNativePath()); - // Restore the file names (open() resets them). - d->fileEntry = QFileSystemEntry(QString::fromLocal8Bit(filename.constData(), filename.length())); //note that filename is NOT a native path - filePathIsTemplate = false; - return true; - } +#if !defined(Q_OS_WIN) + d->closeFileHandle = true; +#endif - QT_CLOSE(fd); - } - setError(errno == EMFILE ? QFile::ResourceError : QFile::OpenError, qt_error_string(errno)); - return false; -#else - if (fd == -1) - return false; + filePathIsTemplate = false; - d->fileEntry = QFileSystemEntry(filename, QFileSystemEntry::FromInternalPath()); - if (QFSFileEngine::open(openMode)) { - filePathIsTemplate = false; - return true; - } + d->openMode = openMode; + d->lastFlushFailed = false; + d->tried_stat = 0; - d->fileEntry = QFileSystemEntry(qfilename, QFileSystemEntry::FromInternalPath()); - return false; -#endif + return true; } bool QTemporaryFileEngine::remove() |