diff options
Diffstat (limited to 'src/corelib')
72 files changed, 1450 insertions, 793 deletions
diff --git a/src/corelib/codecs/qisciicodec.cpp b/src/corelib/codecs/qisciicodec.cpp index dd2bc8d..5619580 100644 --- a/src/corelib/codecs/qisciicodec.cpp +++ b/src/corelib/codecs/qisciicodec.cpp @@ -38,7 +38,6 @@ ** $QT_END_LICENSE$ ** ****************************************************************************/ - #include "qisciicodec_p.h" #include "qlist.h" diff --git a/src/corelib/codecs/qtextcodec.cpp b/src/corelib/codecs/qtextcodec.cpp index 6e8ffa1..cfb62c7 100644 --- a/src/corelib/codecs/qtextcodec.cpp +++ b/src/corelib/codecs/qtextcodec.cpp @@ -92,6 +92,11 @@ # define QT_NO_SETLOCALE #endif +#if 0 // ### TODO - remove me! +// enabling this is not exception safe! +#define Q_DEBUG_TEXTCODEC +#endif + QT_BEGIN_NAMESPACE #ifndef QT_NO_TEXTCODECPLUGIN @@ -165,7 +170,9 @@ static QTextCodec *createForMib(int mib) } static QList<QTextCodec*> *all = 0; +#ifdef Q_DEBUG_TEXTCODEC static bool destroying_is_ok = false; +#endif static QTextCodec *localeMapper = 0; QTextCodec *QTextCodec::cftr = 0; @@ -187,15 +194,21 @@ QTextCodecCleanup::~QTextCodecCleanup() if (!all) return; +#ifdef Q_DEBUG_TEXTCODEC destroying_is_ok = true; +#endif - while (all->size()) - delete all->takeFirst(); + for (QList<QTextCodec *>::const_iterator it = all->constBegin() + ; it != all->constEnd(); ++it) { + delete *it; + } delete all; all = 0; localeMapper = 0; +#ifdef Q_DEBUG_TEXTCODEC destroying_is_ok = false; +#endif } Q_GLOBAL_STATIC(QTextCodecCleanup, createQTextCodecCleanup) @@ -659,8 +672,10 @@ static void setup() if (all) return; +#ifdef Q_DEBUG_TEXTCODEC if (destroying_is_ok) qWarning("QTextCodec: Creating new codec during codec cleanup"); +#endif all = new QList<QTextCodec*>; // create the cleanup object to cleanup all codecs on exit (void) createQTextCodecCleanup(); @@ -915,8 +930,10 @@ QTextCodec::QTextCodec() */ QTextCodec::~QTextCodec() { +#ifdef Q_DEBUG_TEXTCODEC if (!destroying_is_ok) qWarning("QTextCodec::~QTextCodec: Called by application"); +#endif if (all) all->removeAll(this); } diff --git a/src/corelib/concurrent/qthreadpool.cpp b/src/corelib/concurrent/qthreadpool.cpp index 30edfd4..8913b56 100644 --- a/src/corelib/concurrent/qthreadpool.cpp +++ b/src/corelib/concurrent/qthreadpool.cpp @@ -246,14 +246,14 @@ bool QThreadPoolPrivate::tooManyThreadsActive() const */ void QThreadPoolPrivate::startThread(QRunnable *runnable) { - QThreadPoolThread *thread = new QThreadPoolThread(this); - allThreads.insert(thread); + QScopedPointer <QThreadPoolThread> thread(new QThreadPoolThread(this)); + allThreads.insert(thread.data()); ++activeThreads; if (runnable->autoDelete()) ++runnable->ref; thread->runnable = runnable; - thread->start(); + thread.take()->start(); } /*! \internal diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp index ca243e7..484c618 100644 --- a/src/corelib/global/qglobal.cpp +++ b/src/corelib/global/qglobal.cpp @@ -1929,6 +1929,15 @@ void qt_check_pointer(const char *n, int l) qWarning("In file %s, line %d: Out of memory", n, l); } +/* \internal + Allows you to throw an exception without including <new> + Called internally from Q_CHECK_PTR on certain OS combinations +*/ +void qBadAlloc() +{ + QT_THROW(std::bad_alloc()); +} + /* The Q_ASSERT macro calls this function when the test fails. */ @@ -2177,7 +2186,11 @@ void qt_message_output(QtMsgType msgType, const char *buf) #if defined(Q_OS_SYMBIAN) __DEBUGGER(); // on the emulator, get the debugger to kick in if there's one around - User::Invariant(); // Panic the current thread + TBuf<256> tmp; + TPtrC8 ptr(reinterpret_cast<const TUint8*>(buf)); + TInt len = Min(tmp.MaxLength(), ptr.Length()); + tmp.Copy(ptr.Left(len)); + User::Panic(tmp, 0); // Panic the current thread #elif (defined(Q_OS_UNIX) || defined(Q_CC_MINGW)) abort(); // trap; generates core dump #else @@ -2186,6 +2199,48 @@ void qt_message_output(QtMsgType msgType, const char *buf) } } +#if !defined(QT_NO_EXCEPTIONS) +/*! + \internal + Uses a local buffer to output the message. Not locale safe + cuts off + everything after character 1023, but will work in out of memory situations. +*/ +static void qEmergencyOut(QtMsgType msgType, const char *msg, va_list ap) +{ + char emergency_buf[1024] = { '\0' }; + emergency_buf[1023] = '\0'; + if (msg) + qvsnprintf(emergency_buf, 1023, msg, ap); + qt_message_output(msgType, emergency_buf); +} +#endif + +/*! + \internal +*/ +static void qt_message(QtMsgType msgType, const char *msg, va_list ap) +{ +#if !defined(QT_NO_EXCEPTIONS) + if (std::uncaught_exception()) { + qEmergencyOut(msgType, msg, ap); + return; + } +#endif + QByteArray buf; + if (msg) { + QT_TRY { + buf = QString().vsprintf(msg, ap).toLocal8Bit(); + } QT_CATCH(const std::bad_alloc &) { +#if !defined(QT_NO_EXCEPTIONS) + qEmergencyOut(msgType, msg, ap); + // don't rethrow - we use qWarning and friends in destructors. + return; +#endif + } + } + qt_message_output(msgType, buf.constData()); +} + #undef qDebug /*! \relates <QtGlobal> @@ -2223,14 +2278,10 @@ void qt_message_output(QtMsgType msgType, const char *buf) */ void qDebug(const char *msg, ...) { - QString buf; va_list ap; - va_start(ap, msg); // use variable arg list - if (msg) - buf.vsprintf(msg, ap); + va_start(ap, msg); // use variable arg list + qt_message(QtDebugMsg, msg, ap); va_end(ap); - - qt_message_output(QtDebugMsg, buf.toLocal8Bit().constData()); } #undef qWarning @@ -2267,14 +2318,10 @@ void qDebug(const char *msg, ...) */ void qWarning(const char *msg, ...) { - QString buf; va_list ap; va_start(ap, msg); // use variable arg list - if (msg) - buf.vsprintf(msg, ap); + qt_message(QtWarningMsg, msg, ap); va_end(ap); - - qt_message_output(QtWarningMsg, buf.toLocal8Bit().constData()); } /*! @@ -2307,15 +2354,12 @@ void qWarning(const char *msg, ...) */ void qCritical(const char *msg, ...) { - QString buf; va_list ap; va_start(ap, msg); // use variable arg list - if (msg) - buf.vsprintf(msg, ap); + qt_message(QtCriticalMsg, msg, ap); va_end(ap); - - qt_message_output(QtCriticalMsg, buf.toLocal8Bit().constData()); } + #ifdef QT3_SUPPORT void qSystemWarning(const char *msg, int code) { qCritical("%s (%s)", msg, qt_error_string(code).toLocal8Bit().constData()); } @@ -2323,6 +2367,8 @@ void qSystemWarning(const char *msg, int code) void qErrnoWarning(const char *msg, ...) { + // qt_error_string() will allocate anyway, so we don't have + // to be careful here (like we do in plain qWarning()) QString buf; va_list ap; va_start(ap, msg); @@ -2335,6 +2381,8 @@ void qErrnoWarning(const char *msg, ...) void qErrnoWarning(int code, const char *msg, ...) { + // qt_error_string() will allocate anyway, so we don't have + // to be careful here (like we do in plain qWarning()) QString buf; va_list ap; va_start(ap, msg); @@ -2371,14 +2419,10 @@ void qErrnoWarning(int code, const char *msg, ...) */ void qFatal(const char *msg, ...) { - QString buf; va_list ap; va_start(ap, msg); // use variable arg list - if (msg) - buf.vsprintf(msg, ap); + qt_message(QtFatalMsg, msg, ap); va_end(ap); - - qt_message_output(QtFatalMsg, buf.toLocal8Bit().constData()); } // getenv is declared as deprecated in VS2005. This function @@ -3166,4 +3210,59 @@ bool QInternal::callFunction(InternalFunction func, void **args) \sa Q_DECL_EXPORT */ +#if defined(Q_OS_SYMBIAN) + +#include <typeinfo> + +const char* QSymbianLeaveException::what() const throw() +{ + static const char str[] = "Symbian leave exception %d"; + static char msg[sizeof(str)+12]; + sprintf(msg, str, error); + return msg; +} + +void qt_translateSymbianErrorToException(int error) +{ + if (error >= KErrNone) + return; // do nothing - not an exception + switch (error) { + case KErrNoMemory: + throw std::bad_alloc(); + default: + throw QSymbianLeaveException(error); + } +} + +void qt_translateExceptionToSymbianErrorL(const std::exception& aThrow) +{ + User::Leave(qt_translateExceptionToSymbianError(aThrow)); +} + +int qt_translateExceptionToSymbianError(const std::exception& aThrow) +{ + const std::type_info& atype = typeid(aThrow); + int err = KErrGeneral; + + if(atype == typeid (std::bad_alloc)) + err = KErrNoMemory; + else if(atype == typeid(QSymbianLeaveException)) + err = static_cast<const QSymbianLeaveException&>(aThrow).error; + else if(atype == typeid(std::invalid_argument)) + err = KErrArgument; + else if(atype == typeid(std::out_of_range)) + // std::out_of_range is of type logic_error which by definition means that it is + // "presumably detectable before the program executes". + // std::out_of_range is used to report an argument is not within the expected range. + // The description of KErrArgument says an argument is out of range. Hence the mapping. + err = KErrArgument; + else if(atype == typeid(std::overflow_error)) + err = KErrOverflow; + else if(atype == typeid(std::underflow_error)) + err = KErrUnderflow; + + return err; +} +#endif + QT_END_NAMESPACE diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h index b075db6..030840e 100644 --- a/src/corelib/global/qglobal.h +++ b/src/corelib/global/qglobal.h @@ -1301,6 +1301,32 @@ class QDataStream; # define Q_AUTOTEST_EXPORT #endif +inline void qt_noop() {} + +/* These wrap try/catch so we can switch off exceptions later. + + Beware - do not use more than one QT_CATCH per QT_TRY, and do not use + the exception instance in the catch block. + If you can't live with those constraints, don't use these macros. + Use the QT_NO_EXCEPTIONS macro to protect your code instead. +*/ + +#ifdef QT_BOOTSTRAPPED +# define QT_NO_EXCEPTIONS +#endif + +#ifdef QT_NO_EXCEPTIONS +# define QT_TRY if (true) +# define QT_CATCH(A) else +# define QT_THROW(A) qt_noop() +# define QT_RETHROW qt_noop() +#else +# define QT_TRY try +# define QT_CATCH(A) catch (A) +# define QT_THROW(A) throw A +# define QT_RETHROW throw +#endif + /* System information */ @@ -1554,8 +1580,6 @@ inline QNoDebug qDebug(); #endif -inline void qt_noop() {} - Q_CORE_EXPORT void qt_assert(const char *assertion, const char *file, int line); #if !defined(Q_ASSERT) @@ -1581,11 +1605,16 @@ Q_CORE_EXPORT void qt_assert_x(const char *where, const char *what, const char * #endif Q_CORE_EXPORT void qt_check_pointer(const char *, int); +Q_CORE_EXPORT void qBadAlloc(); -#ifndef QT_NO_DEBUG -# define Q_CHECK_PTR(p) do {if(!(p))qt_check_pointer(__FILE__,__LINE__);} while (0) +#ifdef QT_NO_EXCEPTIONS +# if defined(QT_NO_DEBUG) +# define Q_CHECK_PTR(p) qt_noop(); +# else +# define Q_CHECK_PTR(p) do {if(!(p))qt_check_pointer(__FILE__,__LINE__);} while (0) +# endif #else -# define Q_CHECK_PTR(p) +# define Q_CHECK_PTR(p) do { if (!(p)) qBadAlloc(); } while (0) #endif #if (defined(Q_CC_GNU) && !defined(Q_OS_SOLARIS)) || defined(Q_CC_HPACC) @@ -1734,12 +1763,12 @@ public: static TYPE *NAME() \ { \ if (!this_##NAME.pointer && !this_##NAME.destroyed) { \ - TYPE *x = new TYPE; \ + QScopedPointer<TYPE > x(new TYPE); \ INITIALIZER; \ - if (!this_##NAME.pointer.testAndSetOrdered(0, x)) \ - delete x; \ - else \ + if (this_##NAME.pointer.testAndSetOrdered(0, x.data())) { \ static QGlobalStaticDeleter<TYPE > cleanup(this_##NAME); \ + x.take(); \ + } \ } \ return this_##NAME.pointer; \ } @@ -2193,8 +2222,8 @@ inline const QForeachContainer<T> *qForeachContainer(const QForeachContainerBase #endif #define Q_DECLARE_PRIVATE(Class) \ - inline Class##Private* d_func() { return reinterpret_cast<Class##Private *>(d_ptr); } \ - inline const Class##Private* d_func() const { return reinterpret_cast<const Class##Private *>(d_ptr); } \ + inline Class##Private* d_func() { return reinterpret_cast<Class##Private *>(d_ptr.data()); } \ + inline const Class##Private* d_func() const { return reinterpret_cast<const Class##Private *>(d_ptr.data()); } \ friend class Class##Private; #define Q_DECLARE_PRIVATE_D(Dptr, Class) \ @@ -2242,7 +2271,9 @@ inline const QForeachContainer<T> *qForeachContainer(const QForeachContainerBase Class(const Class &); \ Class &operator=(const Class &); #else -# define Q_DISABLE_COPY(Class) +# define Q_DISABLE_COPY(Class) \ + Class(const Class &); \ + Class &operator=(const Class &); #endif class QByteArray; @@ -2434,6 +2465,48 @@ QT_LICENSED_MODULE(DBus) # define QT_NO_CONCURRENT_FILTER #endif +#if defined(Q_OS_SYMBIAN) + +#include <stdexcept> +class QSymbianLeaveException : public std::exception +{ +public: + QSymbianLeaveException(int err) : error(err){ } + const char* what() const throw(); +public: + int error; +}; + +Q_CORE_EXPORT void qt_translateSymbianErrorToException(int error); +Q_CORE_EXPORT void qt_translateExceptionToSymbianErrorL(const std::exception& ex); +Q_CORE_EXPORT int qt_translateExceptionToSymbianError(const std::exception& ex); + +#define QT_TRANSLATE_SYMBIAN_LEAVE_TO_EXCEPTION(f) \ + { \ + TInt error; \ + TRAP(error, f); \ + if (error) \ + qt_translateSymbianErrorToException(error); \ + } + +#define QT_TRANSLATE_EXCEPTION_TO_SYMBIAN_ERROR(err, f) \ + { \ + err = KErrNone; \ + try { \ + f; \ + } catch (const std::exception &ex) { \ + err = qt_translateExceptionToSymbianError(ex); \ + } \ + } + +#define QT_TRANSLATE_EXCEPTION_TO_SYMBIAN_LEAVE(f) \ + { \ + TInt err; \ + QT_TRANSLATE_EXCEPTION_TO_SYMBIAN_ERROR(err, f) \ + User::LeaveIfError(err); \ + } +#endif + QT_END_NAMESPACE QT_END_HEADER diff --git a/src/corelib/global/qlibraryinfo.cpp b/src/corelib/global/qlibraryinfo.cpp index 29e356e..5e4b9bd 100644 --- a/src/corelib/global/qlibraryinfo.cpp +++ b/src/corelib/global/qlibraryinfo.cpp @@ -40,11 +40,11 @@ ****************************************************************************/ #include "qdir.h" -#include "qfile.h" +#include "qfile.h" #include "qconfig.h" #include "qsettings.h" #include "qlibraryinfo.h" -#include "qpointer.h" +#include "qscopedpointer.h" #ifdef QT_BUILD_QMAKE QT_BEGIN_NAMESPACE @@ -67,8 +67,7 @@ QT_BEGIN_NAMESPACE struct QLibrarySettings { QLibrarySettings(); - ~QLibrarySettings() { delete static_cast<QSettings *>(settings); } - QSettings *settings; + QScopedPointer<QSettings> settings; }; Q_GLOBAL_STATIC(QLibrarySettings, qt_library_settings) @@ -79,32 +78,19 @@ public: static void cleanup() { QLibrarySettings *ls = qt_library_settings(); - if (ls) { - delete static_cast<QSettings *>(ls->settings); - ls->settings = 0; - } + if (ls) + ls->settings.reset(0); } static QSettings *configuration() { -#ifdef QT_NO_THREAD - // This recursion guard should be a temporary solution; the recursive - // dependency should be found and removed. - static bool initializing = false; - if (initializing) - return 0; - initializing = true; -#endif QLibrarySettings *ls = qt_library_settings(); -#ifdef QT_NO_THREAD - initializing = false; -#endif - return ls ? static_cast<QSettings *>(qt_library_settings()->settings) : (QSettings*)0; + return ls ? ls->settings.data() : 0; } }; QLibrarySettings::QLibrarySettings() + : settings(QLibraryInfoPrivate::findConfiguration()) { - settings = QLibraryInfoPrivate::findConfiguration(); #ifndef QT_BUILD_QMAKE qAddPostRoutine(QLibraryInfoPrivate::cleanup); #endif diff --git a/src/corelib/io/qabstractfileengine.cpp b/src/corelib/io/qabstractfileengine.cpp index bedc121..63d4944 100644 --- a/src/corelib/io/qabstractfileengine.cpp +++ b/src/corelib/io/qabstractfileengine.cpp @@ -352,8 +352,6 @@ QAbstractFileEngine::QAbstractFileEngine(QAbstractFileEnginePrivate &dd) : d_ptr */ QAbstractFileEngine::~QAbstractFileEngine() { - delete d_ptr; - d_ptr = 0; } /*! @@ -881,7 +879,6 @@ QAbstractFileEngineIterator::QAbstractFileEngineIterator(QDir::Filters filters, */ QAbstractFileEngineIterator::~QAbstractFileEngineIterator() { - delete d; } /*! diff --git a/src/corelib/io/qabstractfileengine.h b/src/corelib/io/qabstractfileengine.h index d742467..5b75343 100644 --- a/src/corelib/io/qabstractfileengine.h +++ b/src/corelib/io/qabstractfileengine.h @@ -193,7 +193,7 @@ protected: QAbstractFileEngine(); QAbstractFileEngine(QAbstractFileEnginePrivate &); - QAbstractFileEnginePrivate *d_ptr; + QScopedPointer<QAbstractFileEnginePrivate> d_ptr; private: Q_DECLARE_PRIVATE(QAbstractFileEngine) Q_DISABLE_COPY(QAbstractFileEngine) @@ -237,7 +237,7 @@ private: friend class QDirIterator; friend class QDirIteratorPrivate; void setPath(const QString &path); - QAbstractFileEngineIteratorPrivate *d; + QScopedPointer<QAbstractFileEngineIteratorPrivate> d; }; QT_END_NAMESPACE diff --git a/src/corelib/io/qdebug.h b/src/corelib/io/qdebug.h index 8334146..60dc688 100644 --- a/src/corelib/io/qdebug.h +++ b/src/corelib/io/qdebug.h @@ -79,8 +79,11 @@ public: inline QDebug &operator=(const QDebug &other); inline ~QDebug() { if (!--stream->ref) { - if(stream->message_output) - qt_message_output(stream->type, stream->buffer.toLocal8Bit().data()); + if(stream->message_output) { + QT_TRY { + qt_message_output(stream->type, stream->buffer.toLocal8Bit().data()); + } QT_CATCH(std::bad_alloc) { /* We're out of memory - give up. */ } + } delete stream; } } diff --git a/src/corelib/io/qdir.cpp b/src/corelib/io/qdir.cpp index 901641c..e1cc7ac 100644 --- a/src/corelib/io/qdir.cpp +++ b/src/corelib/io/qdir.cpp @@ -83,6 +83,7 @@ class QDirPrivate QDir *q_ptr; Q_DECLARE_PUBLIC(QDir) + friend class QScopedPointer<QDirPrivate>; protected: QDirPrivate(QDir*, const QDir *copy=0); ~QDirPrivate(); @@ -573,8 +574,6 @@ QDir::QDir(const QDir &dir) : d_ptr(new QDirPrivate(this, &dir)) QDir::~QDir() { - delete d_ptr; - d_ptr = 0; } /*! diff --git a/src/corelib/io/qdir.h b/src/corelib/io/qdir.h index c4f6b1a..ac80094 100644 --- a/src/corelib/io/qdir.h +++ b/src/corelib/io/qdir.h @@ -45,6 +45,7 @@ #include <QtCore/qstring.h> #include <QtCore/qfileinfo.h> #include <QtCore/qstringlist.h> +#include <QtCore/qscopedpointer.h> QT_BEGIN_HEADER @@ -57,7 +58,7 @@ class QDirPrivate; class Q_CORE_EXPORT QDir { protected: - QDirPrivate *d_ptr; + QScopedPointer<QDirPrivate> d_ptr; private: Q_DECLARE_PRIVATE(QDir) public: diff --git a/src/corelib/io/qfile.cpp b/src/corelib/io/qfile.cpp index 551485d..1e3d5a3 100644 --- a/src/corelib/io/qfile.cpp +++ b/src/corelib/io/qfile.cpp @@ -109,6 +109,7 @@ QFilePrivate::openExternalFile(int flags, int fd) return false; #else delete fileEngine; + fileEngine = 0; QFSFileEngine *fe = new QFSFileEngine; fe->setFileName(fileName); fileEngine = fe; @@ -125,6 +126,7 @@ QFilePrivate::openExternalFile(int flags, FILE *fh) return false; #else delete fileEngine; + fileEngine = 0; QFSFileEngine *fe = new QFSFileEngine; fe->setFileName(fileName); fileEngine = fe; @@ -410,9 +412,6 @@ QFile::QFile(QFilePrivate &dd, QObject *parent) QFile::~QFile() { close(); -#ifdef QT_NO_QOBJECT - delete d_ptr; -#endif } /*! diff --git a/src/corelib/io/qfileinfo.cpp b/src/corelib/io/qfileinfo.cpp index 96e0f82..b36fb69 100644 --- a/src/corelib/io/qfileinfo.cpp +++ b/src/corelib/io/qfileinfo.cpp @@ -439,8 +439,6 @@ QFileInfo::QFileInfo(const QFileInfo &fileinfo) : d_ptr(new QFileInfoPrivate(&fi QFileInfo::~QFileInfo() { - delete d_ptr; - d_ptr = 0; } /*! diff --git a/src/corelib/io/qfileinfo.h b/src/corelib/io/qfileinfo.h index 97997a3..6c01f63 100644 --- a/src/corelib/io/qfileinfo.h +++ b/src/corelib/io/qfileinfo.h @@ -44,6 +44,7 @@ #include <QtCore/qfile.h> #include <QtCore/qlist.h> +#include <QtCore/qscopedpointer.h> QT_BEGIN_HEADER @@ -165,7 +166,7 @@ public: #endif protected: - QFileInfoPrivate *d_ptr; + QScopedPointer<QFileInfoPrivate> d_ptr; private: Q_DECLARE_PRIVATE(QFileInfo) }; diff --git a/src/corelib/io/qfilesystemwatcher_symbian.cpp b/src/corelib/io/qfilesystemwatcher_symbian.cpp index b1a6188..aeb19db 100644 --- a/src/corelib/io/qfilesystemwatcher_symbian.cpp +++ b/src/corelib/io/qfilesystemwatcher_symbian.cpp @@ -80,7 +80,7 @@ void CNotifyChangeEvent::RunL() if (iStatus.Int() == KErrNone){ fsSession.NotifyChange(ENotifyAll, iStatus, watchedPath); SetActive(); - engine->emitPathChanged(this); + QT_TRANSLATE_EXCEPTION_TO_SYMBIAN_LEAVE(engine->emitPathChanged(this)); } else { qWarning("CNotifyChangeEvent::RunL() - Failed to order change notifications: %d", iStatus.Int()); } @@ -262,9 +262,9 @@ void QSymbianFileSystemWatcherEngine::run() void QSymbianFileSystemWatcherEngine::addNativeListener(const QString &directoryPath) { QMutexLocker locker(&mutex); - HBufC* buffer = qt_QString2HBufCNewL(QDir::toNativeSeparators(directoryPath)); - currentEvent = CNotifyChangeEvent::New(fsSession, *buffer, this); - delete buffer; + QString nativeDir(QDir::toNativeSeparators(directoryPath)); + TPtrC ptr(qt_QString2TPtrC(nativeDir)); + currentEvent = CNotifyChangeEvent::New(fsSession, ptr, this); syncCondition.wakeOne(); } diff --git a/src/corelib/io/qfsfileengine_unix.cpp b/src/corelib/io/qfsfileengine_unix.cpp index e595f15..45e547f 100644 --- a/src/corelib/io/qfsfileengine_unix.cpp +++ b/src/corelib/io/qfsfileengine_unix.cpp @@ -404,23 +404,21 @@ bool QFSFileEngine::copy(const QString &newName) TInt err = rfs.Connect(); if (err == KErrNone) { CFileMan* fm = NULL; - HBufC* oldBuf = NULL; - HBufC* newBuf = NULL; + QString oldNative(QDir::toNativeSeparators(d->filePath)); + TPtrC oldPtr(qt_QString2TPtrC(oldNative)); + QFileInfo fi(newName); + QString absoluteNewName = fi.absolutePath() + QDir::separator() + fi.fileName(); + QString newNative(QDir::toNativeSeparators(absoluteNewName)); + TPtrC newPtr(qt_QString2TPtrC(newNative)); TRAP (err, fm = CFileMan::NewL(rfs); - oldBuf = qt_QString2HBufCNewL(QDir::toNativeSeparators(d->filePath)); RFile rfile; - err = rfile.Open(rfs, *oldBuf, EFileShareReadersOrWriters); + err = rfile.Open(rfs, oldPtr, EFileShareReadersOrWriters); if (err == KErrNone) { - QFileInfo fi(newName); - QString absoluteNewName = fi.absolutePath() + QDir::separator() + fi.fileName(); - newBuf = qt_QString2HBufCNewL(QDir::toNativeSeparators(absoluteNewName)); - err = fm->Copy(rfile, *newBuf); + err = fm->Copy(rfile, newPtr); rfile.Close(); } ) // End TRAP - delete oldBuf; - delete newBuf; delete fm; rfs.Close(); } @@ -675,10 +673,10 @@ static bool _q_isSymbianHidden(const QString &path, bool isDir) if (isDir && absPath.at(absPath.size()-1) != QChar('/')) { absPath += QChar('/'); } - HBufC* buffer = qt_QString2HBufCNewL(QDir::toNativeSeparators(absPath)); + QString native(QDir::toNativeSeparators(absPath)); + TPtrC ptr(qt_QString2TPtrC(native)); TUint attributes; - err = rfs.Att(*buffer, attributes); - delete buffer; + err = rfs.Att(ptr, attributes); rfs.Close(); if (err == KErrNone && (attributes & KEntryAttHidden)) { retval = true; diff --git a/src/corelib/io/qiodevice.h b/src/corelib/io/qiodevice.h index 76d47ca..ad87125 100644 --- a/src/corelib/io/qiodevice.h +++ b/src/corelib/io/qiodevice.h @@ -46,6 +46,7 @@ #include <QtCore/qobject.h> #else #include <QtCore/qobjectdefs.h> +#include <QtCore/qscopedpointer.h> #endif #include <QtCore/qstring.h> @@ -160,7 +161,7 @@ protected: void setErrorString(const QString &errorString); #ifdef QT_NO_QOBJECT - QIODevicePrivate *d_ptr; + QScopedPointer<QIODevicePrivate> d_ptr; #endif private: diff --git a/src/corelib/io/qprocess_symbian.cpp b/src/corelib/io/qprocess_symbian.cpp index a59976c..26e7cdc 100644 --- a/src/corelib/io/qprocess_symbian.cpp +++ b/src/corelib/io/qprocess_symbian.cpp @@ -56,6 +56,7 @@ User::Panic(KQProcessPanic, panicReason); \ } +#include <exception> #include <e32base.h> #include <e32std.h> #include <stdio.h> diff --git a/src/corelib/io/qresource.cpp b/src/corelib/io/qresource.cpp index 1f77caa..0cbcc41 100644 --- a/src/corelib/io/qresource.cpp +++ b/src/corelib/io/qresource.cpp @@ -334,7 +334,6 @@ QResource::QResource(const QString &file, const QLocale &locale) : d_ptr(new QRe */ QResource::~QResource() { - delete d_ptr; } /*! diff --git a/src/corelib/io/qresource.h b/src/corelib/io/qresource.h index 1e9b2d5..f260b68 100644 --- a/src/corelib/io/qresource.h +++ b/src/corelib/io/qresource.h @@ -91,7 +91,7 @@ protected: QStringList children() const; protected: - QResourcePrivate *d_ptr; + QScopedPointer<QResourcePrivate> d_ptr; private: Q_DECLARE_PRIVATE(QResource) diff --git a/src/corelib/io/qsettings.cpp b/src/corelib/io/qsettings.cpp index 6152518..afaaf28 100644 --- a/src/corelib/io/qsettings.cpp +++ b/src/corelib/io/qsettings.cpp @@ -1106,10 +1106,10 @@ static QString getPath(QSettings::Format format, QSettings::Scope scope) QString homePath = QDir::homePath(); QString systemPath; - globalMutex()->lock(); + QMutexLocker locker(globalMutex()); PathHash *pathHash = pathHashFunc(); bool loadSystemPath = pathHash->isEmpty(); - globalMutex()->unlock(); + locker.unlock(); if (loadSystemPath) { /* @@ -1121,7 +1121,7 @@ static QString getPath(QSettings::Format format, QSettings::Scope scope) systemPath += QLatin1Char('/'); } - QMutexLocker locker(globalMutex()); + locker.relock(); if (pathHash->isEmpty()) { /* Lazy initialization of pathHash. We initialize the @@ -1181,9 +1181,6 @@ QConfFileSettingsPrivate::QConfFileSettingsPrivate(QSettings::Format format, int i; initFormat(); - for (i = 0; i < NumConfFiles; ++i) - confFiles[i] = 0; - QString org = organization; if (org.isEmpty()) { setStatus(QSettings::AccessError); @@ -1196,14 +1193,14 @@ QConfFileSettingsPrivate::QConfFileSettingsPrivate(QSettings::Format format, if (scope == QSettings::UserScope) { QString userPath = getPath(format, QSettings::UserScope); if (!application.isEmpty()) - confFiles[F_User | F_Application] = QConfFile::fromName(userPath + appFile, true); - confFiles[F_User | F_Organization] = QConfFile::fromName(userPath + orgFile, true); + confFiles[F_User | F_Application].reset(QConfFile::fromName(userPath + appFile, true)); + confFiles[F_User | F_Organization].reset(QConfFile::fromName(userPath + orgFile, true)); } QString systemPath = getPath(format, QSettings::SystemScope); if (!application.isEmpty()) - confFiles[F_System | F_Application] = QConfFile::fromName(systemPath + appFile, false); - confFiles[F_System | F_Organization] = QConfFile::fromName(systemPath + orgFile, false); + confFiles[F_System | F_Application].reset(QConfFile::fromName(systemPath + appFile, false)); + confFiles[F_System | F_Organization].reset(QConfFile::fromName(systemPath + orgFile, false)); for (i = 0; i < NumConfFiles; ++i) { if (confFiles[i]) { @@ -1222,9 +1219,7 @@ QConfFileSettingsPrivate::QConfFileSettingsPrivate(const QString &fileName, { initFormat(); - confFiles[0] = QConfFile::fromName(fileName, true); - for (int i = 1; i < NumConfFiles; ++i) - confFiles[i] = 0; + confFiles[0].reset(QConfFile::fromName(fileName, true)); initAccess(); } @@ -1241,19 +1236,27 @@ QConfFileSettingsPrivate::~QConfFileSettingsPrivate() usedHash->remove(confFiles[i]->name); if (confFiles[i]->size == 0) { - delete confFiles[i]; + delete confFiles[i].take(); } else if (unusedCache) { - // compute a better size? - unusedCache->insert(confFiles[i]->name, confFiles[i], + QT_TRY { + // compute a better size? + unusedCache->insert(confFiles[i]->name, confFiles[i].data(), 10 + (confFiles[i]->originalKeys.size() / 4)); + confFiles[i].take(); + } QT_CATCH(...) { + // out of memory. Do not cache the file. + delete confFiles[i].take(); + } } } + // prevent the ScopedPointer to deref it again. + confFiles[i].take(); } } void QConfFileSettingsPrivate::remove(const QString &key) { - QConfFile *confFile = confFiles[spec]; + QConfFile *confFile = confFiles[spec].data(); if (!confFile) return; @@ -1280,7 +1283,7 @@ void QConfFileSettingsPrivate::remove(const QString &key) void QConfFileSettingsPrivate::set(const QString &key, const QVariant &value) { - QConfFile *confFile = confFiles[spec]; + QConfFile *confFile = confFiles[spec].data(); if (!confFile) return; @@ -1297,7 +1300,7 @@ bool QConfFileSettingsPrivate::get(const QString &key, QVariant *value) const bool found = false; for (int i = 0; i < NumConfFiles; ++i) { - if (QConfFile *confFile = confFiles[i]) { + if (QConfFile *confFile = confFiles[i].data()) { QMutexLocker locker(&confFile->mutex); if (!confFile->addedKeys.isEmpty()) { @@ -1332,7 +1335,7 @@ QStringList QConfFileSettingsPrivate::children(const QString &prefix, ChildSpec int startPos = prefix.size(); for (int i = 0; i < NumConfFiles; ++i) { - if (QConfFile *confFile = confFiles[i]) { + if (QConfFile *confFile = confFiles[i].data()) { QMutexLocker locker(&confFile->mutex); if (thePrefix.isEmpty()) { @@ -1365,7 +1368,7 @@ QStringList QConfFileSettingsPrivate::children(const QString &prefix, ChildSpec void QConfFileSettingsPrivate::clear() { - QConfFile *confFile = confFiles[spec]; + QConfFile *confFile = confFiles[spec].data(); if (!confFile) return; @@ -1381,7 +1384,7 @@ void QConfFileSettingsPrivate::sync() // error we just try to go on and make the best of it for (int i = 0; i < NumConfFiles; ++i) { - QConfFile *confFile = confFiles[i]; + QConfFile *confFile = confFiles[i].data(); if (confFile) { QMutexLocker locker(&confFile->mutex); syncConfFile(i); @@ -1396,7 +1399,7 @@ void QConfFileSettingsPrivate::flush() QString QConfFileSettingsPrivate::fileName() const { - QConfFile *confFile = confFiles[spec]; + QConfFile *confFile = confFiles[spec].data(); if (!confFile) return QString(); return confFile->name; @@ -1407,7 +1410,7 @@ bool QConfFileSettingsPrivate::isWritable() const if (format > QSettings::IniFormat && !writeFunc) return false; - QConfFile *confFile = confFiles[spec]; + QConfFile *confFile = confFiles[spec].data(); if (!confFile) return false; @@ -1416,7 +1419,7 @@ bool QConfFileSettingsPrivate::isWritable() const void QConfFileSettingsPrivate::syncConfFile(int confFileNo) { - QConfFile *confFile = confFiles[confFileNo]; + QConfFile *confFile = confFiles[confFileNo].data(); bool readOnly = confFile->addedKeys.isEmpty() && confFile->removedKeys.isEmpty(); bool ok; @@ -2759,11 +2762,13 @@ QSettings::QSettings(const QString &fileName, Format format) QSettings::~QSettings() { Q_D(QSettings); - if (d->pendingChanges) - d->flush(); -#ifdef QT_NO_QOBJECT - delete d; -#endif + if (d->pendingChanges) { + QT_TRY { + d->flush(); + } QT_CATCH(...) { + ; // ok. then don't flush but at least don't throw in the destructor + } + } } /*! @@ -3566,8 +3571,7 @@ void QSettings::setPath_helper(Scope scope, const QString &organization, const Q QSettingsPrivate *oldPriv = d; QSettingsPrivate *newPriv = QSettingsPrivate::create(oldPriv->format, scope, organization, application); static_cast<QObjectPrivate &>(*newPriv) = static_cast<QObjectPrivate &>(*oldPriv); // copy the QObject stuff over (hack) - delete oldPriv; - d_ptr = newPriv; + d_ptr.reset(newPriv); } /*! \fn bool QSettings::writeEntry(const QString &key, bool value) diff --git a/src/corelib/io/qsettings.h b/src/corelib/io/qsettings.h index cbb24ba..41bce89 100644 --- a/src/corelib/io/qsettings.h +++ b/src/corelib/io/qsettings.h @@ -78,7 +78,7 @@ class Q_CORE_EXPORT QSettings #ifndef QT_NO_QOBJECT Q_OBJECT #else - QSettingsPrivate *d_ptr; + QScopedPointer<QSettingsPrivate> d_ptr; #endif Q_DECLARE_PRIVATE(QSettings) diff --git a/src/corelib/io/qsettings_p.h b/src/corelib/io/qsettings_p.h index dd72fd9..1bdbf2c 100644 --- a/src/corelib/io/qsettings_p.h +++ b/src/corelib/io/qsettings_p.h @@ -300,7 +300,7 @@ private: void ensureAllSectionsParsed(QConfFile *confFile) const; void ensureSectionParsed(QConfFile *confFile, const QSettingsKey &key) const; - QConfFile *confFiles[NumConfFiles]; + QScopedSharedPointer<QConfFile> confFiles[NumConfFiles]; QSettings::ReadFunc readFunc; QSettings::WriteFunc writeFunc; QString extension; diff --git a/src/corelib/io/qtextstream.cpp b/src/corelib/io/qtextstream.cpp index 1167671..9382fae 100644 --- a/src/corelib/io/qtextstream.cpp +++ b/src/corelib/io/qtextstream.cpp @@ -1112,9 +1112,6 @@ QTextStream::~QTextStream() #endif if (!d->writeBuffer.isEmpty()) d->flushWriteBuffer(); - - delete d; - d_ptr = 0; } /*! diff --git a/src/corelib/io/qtextstream.h b/src/corelib/io/qtextstream.h index 6302d34..cfacec6 100644 --- a/src/corelib/io/qtextstream.h +++ b/src/corelib/io/qtextstream.h @@ -46,6 +46,7 @@ #include <QtCore/qstring.h> #include <QtCore/qchar.h> #include <QtCore/qlocale.h> +#include <QtCore/qscopedpointer.h> #ifndef QT_NO_TEXTCODEC # ifdef QT3_SUPPORT @@ -256,7 +257,7 @@ private: Q_DISABLE_COPY(QTextStream) - QTextStreamPrivate *d_ptr; + QScopedPointer<QTextStreamPrivate> d_ptr; }; Q_DECLARE_OPERATORS_FOR_FLAGS(QTextStream::NumberFlags) diff --git a/src/corelib/kernel/qcore_symbian_p.cpp b/src/corelib/kernel/qcore_symbian_p.cpp index 4f18490..101ed44 100644 --- a/src/corelib/kernel/qcore_symbian_p.cpp +++ b/src/corelib/kernel/qcore_symbian_p.cpp @@ -39,9 +39,11 @@ ** ****************************************************************************/ +#include <exception> #include <e32base.h> #include <e32uid.h> #include "qcore_symbian_p.h" +#include <string> QT_BEGIN_NAMESPACE @@ -51,18 +53,17 @@ QT_BEGIN_NAMESPACE must be deleted by the caller. */ -Q_CORE_EXPORT HBufC* qt_QString2HBufCNewL(const QString& aString) +Q_CORE_EXPORT HBufC* qt_QString2HBufC(const QString& aString) { HBufC *buffer; #ifdef QT_NO_UNICODE TPtrC8 ptr(reinterpret_cast<const TUint8*>(aString.toLocal8Bit().constData())); - buffer = HBufC8::NewL(ptr.Length()); - buffer->Des().Copy(ptr); #else - TPtrC16 ptr(reinterpret_cast<const TUint16*>(aString.utf16())); - buffer = HBufC16::NewL(ptr.Length()); - buffer->Des().Copy(ptr); + TPtrC16 ptr(qt_QString2TPtrC(aString)); #endif + buffer = HBufC::New(ptr.Length()); + Q_CHECK_PTR(buffer); + buffer->Des().Copy(ptr); return buffer; } @@ -82,7 +83,8 @@ QHBufC::QHBufC() QHBufC::QHBufC(const QHBufC &src) { - m_hBufC = src.m_hBufC->AllocL(); + m_hBufC = src.m_hBufC->Alloc(); + Q_CHECK_PTR(m_hBufC); } /*! @@ -97,7 +99,7 @@ QHBufC::QHBufC(HBufC *src) QHBufC::QHBufC(const QString &src) { - m_hBufC = qt_QString2HBufCNewL(src); + m_hBufC = qt_QString2HBufC(src); } QHBufC::~QHBufC() @@ -172,4 +174,5 @@ Q_CORE_EXPORT TLibraryFunction qt_resolveS60PluginFunc(int ordinal) return qt_s60_plugin_resolver()->resolve(ordinal); } + QT_END_NAMESPACE diff --git a/src/corelib/kernel/qcore_symbian_p.h b/src/corelib/kernel/qcore_symbian_p.h index 3b974c3..bd8f304 100644 --- a/src/corelib/kernel/qcore_symbian_p.h +++ b/src/corelib/kernel/qcore_symbian_p.h @@ -63,7 +63,7 @@ QT_BEGIN_HEADER QT_BEGIN_NAMESPACE -Q_CORE_EXPORT HBufC* qt_QString2HBufCNewL(const QString& aString); +Q_CORE_EXPORT HBufC* qt_QString2HBufC(const QString& aString); Q_CORE_EXPORT QString qt_TDesC2QStringL(const TDesC& aDescriptor); inline QString qt_TDes2QStringL(const TDes& aDescriptor) { return qt_TDesC2QStringL(aDescriptor); } @@ -91,7 +91,7 @@ static inline TRect qt_QRect2TRect(const QRect& qr) // Returned TPtrC is valid as long as the given parameter is valid and unmodified static inline TPtrC qt_QString2TPtrC( const QString& string ) { - return reinterpret_cast<const TUint16*>(string.utf16()); + return TPtrC16(static_cast<const TUint16*>(string.utf16()), string.length()); } class Q_CORE_EXPORT QHBufC diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp index d99164b..5c3fd76 100644 --- a/src/corelib/kernel/qcoreapplication.cpp +++ b/src/corelib/kernel/qcoreapplication.cpp @@ -63,8 +63,10 @@ #include <private/qfactoryloader_p.h> #ifdef Q_OS_SYMBIAN +# include <exception> # include <f32file.h> # include "qeventdispatcher_symbian_p.h" +# include "private/qcore_symbian_p.h" #elif defined(Q_OS_UNIX) # if !defined(QT_NO_GLIB) # include "qeventdispatcher_glib_p.h" @@ -88,6 +90,21 @@ QT_BEGIN_NAMESPACE +class QLockedMutexUnlocker +{ +public: + inline explicit QLockedMutexUnlocker(QMutex *m) + : mtx(m) + { } + inline ~QLockedMutexUnlocker() { unlock(); } + inline void unlock() { if (mtx) mtx->unlock(); mtx = 0; } + +private: + Q_DISABLE_COPY(QLockedMutexUnlocker) + + QMutex *mtx; +}; + #if defined(Q_WS_WIN) || defined(Q_WS_MAC) extern QString qAppFileName(); #endif @@ -159,7 +176,14 @@ void qRemovePostRoutine(QtCleanUpFunction p) void Q_CORE_EXPORT qt_call_post_routines() { - QVFuncList *list = postRList(); + QVFuncList *list = 0; + QT_TRY { + list = postRList(); + } QT_CATCH(const std::bad_alloc &) { + // ignore - if we can't allocate a post routine list, + // there's a high probability that there's no post + // routine to be executed :) + } if (!list) return; while (!list->isEmpty()) @@ -248,24 +272,26 @@ QCoreApplicationPrivate::QCoreApplicationPrivate(int &aargc, char **aargv) QCoreApplicationPrivate::~QCoreApplicationPrivate() { + if (threadData) { #ifndef QT_NO_THREAD - void *data = &threadData->tls; - QThreadStorageData::finish((void **)data); + void *data = &threadData->tls; + QThreadStorageData::finish((void **)data); #endif - // need to clear the state of the mainData, just in case a new QCoreApplication comes along. - QMutexLocker locker(&threadData->postEventList.mutex); - for (int i = 0; i < threadData->postEventList.size(); ++i) { - const QPostEvent &pe = threadData->postEventList.at(i); - if (pe.event) { - --pe.receiver->d_func()->postedEvents; - pe.event->posted = false; - delete pe.event; + // need to clear the state of the mainData, just in case a new QCoreApplication comes along. + QMutexLocker locker(&threadData->postEventList.mutex); + for (int i = 0; i < threadData->postEventList.size(); ++i) { + const QPostEvent &pe = threadData->postEventList.at(i); + if (pe.event) { + --pe.receiver->d_func()->postedEvents; + pe.event->posted = false; + delete pe.event; + } } + threadData->postEventList.clear(); + threadData->postEventList.recursion = 0; + threadData->quitNow = false; } - threadData->postEventList.clear(); - threadData->postEventList.recursion = 0; - threadData->quitNow = false; } void QCoreApplicationPrivate::createEventDispatcher() @@ -544,7 +570,14 @@ QCoreApplication::~QCoreApplication() #if !defined(QT_NO_THREAD) #if !defined(QT_NO_CONCURRENT) // Synchronize and stop the global thread pool threads. - QThreadPool::globalInstance()->waitForDone(); + QThreadPool *globalThreadPool = 0; + QT_TRY { + globalThreadPool = QThreadPool::globalInstance(); + } QT_CATCH (...) { + // swallow the exception, since destructors shouldn't throw + } + if (globalThreadPool) + globalThreadPool->waitForDone(); #endif QThread::cleanup(); #endif @@ -626,26 +659,13 @@ bool QCoreApplication::notifyInternal(QObject *receiver, QEvent *event) d->inEventHandler = true; #endif -#if defined(Q_OS_SYMBIAN) -// __UHEAP_MARK; - TInt error; - bool returnValue = false; - TRAP(error, returnValue = notify(receiver, event)); - if (error != KErrNone) { - qWarning(QString("Symbian OS error: %1").arg(error).toAscii().constData()); - } -// __UHEAP_MARKEND; -#elif defined(QT_NO_EXCEPTIONS) - bool returnValue = notify(receiver, event); -#else bool returnValue; - try { + QT_TRY { returnValue = notify(receiver, event); - } catch(...) { + } QT_CATCH (...) { --threadData->loopLevel; - throw; + QT_RETHROW; } -#endif #ifdef QT_JAMBI_BUILD // Restore the previous state if the object was not deleted.. @@ -1066,15 +1086,14 @@ void QCoreApplication::postEvent(QObject *receiver, QEvent *event, int priority) data->postEventList.mutex.lock(); } + QLockedMutexUnlocker locker(&data->postEventList.mutex); + // if this is one of the compressible events, do compression if (receiver->d_func()->postedEvents && self && self->compressEvent(event, receiver, &data->postEventList)) { - data->postEventList.mutex.unlock(); return; } - event->posted = true; - ++receiver->d_func()->postedEvents; if (event->type() == QEvent::DeferredDelete && data == QThreadData::current()) { // remember the current running eventloop for DeferredDelete // events posted in the receiver's thread @@ -1095,8 +1114,10 @@ void QCoreApplication::postEvent(QObject *receiver, QEvent *event, int priority) QPostEventList::iterator at = qUpperBound(begin, end, priority); data->postEventList.insert(at, QPostEvent(receiver, event, priority)); } + event->posted = true; + ++receiver->d_func()->postedEvents; data->canWait = false; - data->postEventList.mutex.unlock(); + locker.unlock(); if (data->eventDispatcher) data->eventDispatcher->wakeUp(); diff --git a/src/corelib/kernel/qcoreapplication.h b/src/corelib/kernel/qcoreapplication.h index 65733ac..095d501 100644 --- a/src/corelib/kernel/qcoreapplication.h +++ b/src/corelib/kernel/qcoreapplication.h @@ -195,6 +195,8 @@ private: void init(); static QCoreApplication *self; + + Q_DISABLE_COPY(QCoreApplication) friend class QEventDispatcherUNIXPrivate; friend class QApplication; diff --git a/src/corelib/kernel/qeventdispatcher_symbian.cpp b/src/corelib/kernel/qeventdispatcher_symbian.cpp index c5d91c2..423fbaa 100644 --- a/src/corelib/kernel/qeventdispatcher_symbian.cpp +++ b/src/corelib/kernel/qeventdispatcher_symbian.cpp @@ -193,7 +193,7 @@ void QWakeUpActiveObject::RunL() { iStatus = KRequestPending; SetActive(); - m_dispatcher->wakeUpWasCalled(); + QT_TRANSLATE_EXCEPTION_TO_SYMBIAN_LEAVE(m_dispatcher->wakeUpWasCalled()); } QTimerActiveObject::QTimerActiveObject(QEventDispatcherSymbian *dispatcher, SymbianTimerInfo *timerInfo) @@ -222,9 +222,15 @@ void QTimerActiveObject::DoCancel() void QTimerActiveObject::RunL() { - if (!okToRun()) - return; + int error; + QT_TRANSLATE_EXCEPTION_TO_SYMBIAN_ERROR(error, Run()); + if (error < 0) { + CActiveScheduler::Current()->Error(error); // stop and report here, as this timer will be deleted on scope exit + } +} +void QTimerActiveObject::Run() +{ if (m_timerInfo->interval > 0) { // Start a new timer immediately so that we don't lose time. iStatus = KRequestPending; @@ -240,7 +246,7 @@ void QTimerActiveObject::RunL() SymbianTimerInfoPtr timerInfoPtr(m_timerInfo); m_timerInfo->dispatcher->timerFired(m_timerInfo->timerId); - + iStatus = KRequestPending; SetActive(); TRequestStatus *status = &iStatus; @@ -304,7 +310,7 @@ void QCompleteDeferredAOs::RunL() iStatus = KRequestPending; SetActive(); - m_dispatcher->reactivateDeferredActiveObjects(); + QT_TRANSLATE_EXCEPTION_TO_SYMBIAN_LEAVE(m_dispatcher->reactivateDeferredActiveObjects()); } QSelectThread::QSelectThread() @@ -577,7 +583,7 @@ void QSocketActiveObject::RunL() if (!okToRun()) return; - m_dispatcher->socketFired(this); + QT_TRANSLATE_EXCEPTION_TO_SYMBIAN_LEAVE(m_dispatcher->socketFired(this)); } void QSocketActiveObject::deleteLater() @@ -633,101 +639,108 @@ void QEventDispatcherSymbian::closingDown() bool QEventDispatcherSymbian::processEvents ( QEventLoop::ProcessEventsFlags flags ) { - Q_D(QAbstractEventDispatcher); + bool handledAnyEvent = false; + QT_TRY { + Q_D(QAbstractEventDispatcher); + // It is safe if this counter overflows. The main importance is that each // iteration count is different from the last. m_iterationCount++; - RThread &thread = d->threadData->symbian_thread_handle; - - bool block; - if (flags & QEventLoop::WaitForMoreEvents) { - block = true; - emit aboutToBlock(); - } else { - block = false; - } - - bool handledAnyEvent = false; - - bool oldNoSocketEventsValue = m_noSocketEvents; - if (flags & QEventLoop::ExcludeSocketNotifiers) { - m_noSocketEvents = true; - } else { - m_noSocketEvents = false; - handledAnyEvent = sendDeferredSocketEvents(); - } - - bool handledSymbianEvent = false; - m_interrupt = false; - - /* - * This QTime variable is used to measure the time it takes to finish - * the event loop. If we take too long in the loop, other processes - * may be starved and killed. After the first event has completed, we - * take the current time, and if the remaining events take longer than - * a preset time, we temporarily lower the priority to force a context - * switch. For applications that do not take unecessarily long in the - * event loop, the priority will not be altered. - */ - QTime time; - enum { - FirstRun, - SubsequentRun, - TimeStarted - } timeState = FirstRun; - - TProcessPriority priority; - - while (1) { - if (block) { - // This is where Qt will spend most of its time. - CActiveScheduler::Current()->WaitForAnyRequest(); + RThread &thread = d->threadData->symbian_thread_handle; + + bool block; + if (flags & QEventLoop::WaitForMoreEvents) { + block = true; + emit aboutToBlock(); } else { - if (thread.RequestCount() == 0) { - break; - } - // This one should return without delay. - CActiveScheduler::Current()->WaitForAnyRequest(); - } - - if (timeState == SubsequentRun) { - time.start(); - timeState = TimeStarted; - } - - TInt error; - handledSymbianEvent = CActiveScheduler::RunIfReady(error, CActive::EPriorityIdle); - if (error) { - qWarning("CActiveScheduler::RunIfReady() returned error: %i\n", error); - CActiveScheduler::Current()->Error(error); + block = false; } - if (!handledSymbianEvent) { - qFatal("QEventDispatcherSymbian::processEvents(): Caught Symbian stray signal"); - } - handledAnyEvent = true; - if (m_interrupt) { - break; + + bool oldNoSocketEventsValue = m_noSocketEvents; + if (flags & QEventLoop::ExcludeSocketNotifiers) { + m_noSocketEvents = true; + } else { + m_noSocketEvents = false; + handledAnyEvent = sendDeferredSocketEvents(); } - block = false; + + bool handledSymbianEvent = false; + m_interrupt = false; + + /* + * This QTime variable is used to measure the time it takes to finish + * the event loop. If we take too long in the loop, other processes + * may be starved and killed. After the first event has completed, we + * take the current time, and if the remaining events take longer than + * a preset time, we temporarily lower the priority to force a context + * switch. For applications that do not take unecessarily long in the + * event loop, the priority will not be altered. + */ + QTime time; + enum { + FirstRun, + SubsequentRun, + TimeStarted + } timeState = FirstRun; + + TProcessPriority priority; + + while (1) { + if (block) { + // This is where Qt will spend most of its time. + CActiveScheduler::Current()->WaitForAnyRequest(); + } else { + if (thread.RequestCount() == 0) { + break; + } + // This one should return without delay. + CActiveScheduler::Current()->WaitForAnyRequest(); + } + + if (timeState == SubsequentRun) { + time.start(); + timeState = TimeStarted; + } + + TInt error; + handledSymbianEvent = CActiveScheduler::RunIfReady(error, CActive::EPriorityIdle); + if (error) { + qWarning("CActiveScheduler::RunIfReady() returned error: %i\n", error); + CActiveScheduler::Current()->Error(error); + } + + if (!handledSymbianEvent) { + qFatal("QEventDispatcherSymbian::processEvents(): Caught Symbian stray signal"); + } + handledAnyEvent = true; + if (m_interrupt) { + break; + } + block = false; if (timeState == TimeStarted && time.elapsed() > 100) { - priority = m_processHandle.Priority(); - m_processHandle.SetPriority(EPriorityLow); - time.start(); - // Slight chance of race condition in the next lines, but nothing fatal - // will happen, just wrong priority. - if (m_processHandle.Priority() == EPriorityLow) { - m_processHandle.SetPriority(priority); + priority = m_processHandle.Priority(); + m_processHandle.SetPriority(EPriorityLow); + time.start(); + // Slight chance of race condition in the next lines, but nothing fatal + // will happen, just wrong priority. + if (m_processHandle.Priority() == EPriorityLow) { + m_processHandle.SetPriority(priority); + } } - } - if (timeState == FirstRun) - timeState = SubsequentRun; - }; - - emit awake(); - - m_noSocketEvents = oldNoSocketEventsValue; + if (timeState == FirstRun) + timeState = SubsequentRun; + }; + + emit awake(); + + m_noSocketEvents = oldNoSocketEventsValue; + } QT_CATCH (const std::exception& ex) { +#ifndef QT_NO_EXCEPTIONS + CActiveScheduler::Current()->Error(qt_translateExceptionToSymbianError(ex)); +#endif + } return handledAnyEvent; } diff --git a/src/corelib/kernel/qeventdispatcher_symbian_p.h b/src/corelib/kernel/qeventdispatcher_symbian_p.h index 64ea282..3593055 100644 --- a/src/corelib/kernel/qeventdispatcher_symbian_p.h +++ b/src/corelib/kernel/qeventdispatcher_symbian_p.h @@ -136,6 +136,9 @@ public: protected: void DoCancel(); void RunL(); + +private: + void Run(); private: SymbianTimerInfo *m_timerInfo; diff --git a/src/corelib/kernel/qeventdispatcher_unix.cpp b/src/corelib/kernel/qeventdispatcher_unix.cpp index f7293d4..ea8299c 100644 --- a/src/corelib/kernel/qeventdispatcher_unix.cpp +++ b/src/corelib/kernel/qeventdispatcher_unix.cpp @@ -184,7 +184,7 @@ int QEventDispatcherUNIXPrivate::doSelect(QEventLoop::ProcessEventsFlags flags, continue; for (int i = 0; i < list.size(); ++i) { - QSockNot *sn = list.at(i); + QSockNot *sn = list[i]; FD_ZERO(&fdset); FD_SET(sn->fd, &fdset); @@ -241,7 +241,7 @@ int QEventDispatcherUNIXPrivate::doSelect(QEventLoop::ProcessEventsFlags flags, for (int i=0; i<3; i++) { QSockNotType::List &list = sn_vec[i].list; for (int j = 0; j < list.size(); ++j) { - QSockNot *sn = list.at(j); + QSockNot *sn = list[j]; if (FD_ISSET(sn->fd, &sn_vec[i].select_fds)) q->setSocketNotifierPending(sn->obj); } @@ -599,7 +599,10 @@ QEventDispatcherUNIX::QEventDispatcherUNIX(QEventDispatcherUNIXPrivate &dd, QObj { } QEventDispatcherUNIX::~QEventDispatcherUNIX() -{ } +{ + Q_D(QEventDispatcherUNIX); + d->threadData->eventDispatcher = 0; +} int QEventDispatcherUNIX::select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, timeval *timeout) @@ -706,8 +709,8 @@ QSockNotType::QSockNotType() QSockNotType::~QSockNotType() { - while (!list.isEmpty()) - delete list.takeFirst(); + for (int i = 0; i < list.size(); ++i) + delete list[i]; } /***************************************************************************** @@ -743,7 +746,7 @@ void QEventDispatcherUNIX::registerSocketNotifier(QSocketNotifier *notifier) int i; for (i = 0; i < list.size(); ++i) { - QSockNot *p = list.at(i); + QSockNot *p = list[i]; if (p->fd < sockfd) break; if (p->fd == sockfd) { @@ -781,7 +784,7 @@ void QEventDispatcherUNIX::unregisterSocketNotifier(QSocketNotifier *notifier) QSockNot *sn = 0; int i; for (i = 0; i < list.size(); ++i) { - sn = list.at(i); + sn = list[i]; if(sn->obj == notifier && sn->fd == sockfd) break; } @@ -799,7 +802,7 @@ void QEventDispatcherUNIX::unregisterSocketNotifier(QSocketNotifier *notifier) for (int i=0; i<3; i++) { if (!d->sn_vec[i].list.isEmpty()) d->sn_highest = qMax(d->sn_highest, // list is fd-sorted - d->sn_vec[i].list.first()->fd); + d->sn_vec[i].list[0]->fd); } } } @@ -823,7 +826,7 @@ void QEventDispatcherUNIX::setSocketNotifierPending(QSocketNotifier *notifier) QSockNot *sn = 0; int i; for (i = 0; i < list.size(); ++i) { - sn = list.at(i); + sn = list[i]; if(sn->obj == notifier && sn->fd == sockfd) break; } diff --git a/src/corelib/kernel/qeventdispatcher_unix_p.h b/src/corelib/kernel/qeventdispatcher_unix_p.h index 41329cf..816add5 100644 --- a/src/corelib/kernel/qeventdispatcher_unix_p.h +++ b/src/corelib/kernel/qeventdispatcher_unix_p.h @@ -57,6 +57,7 @@ #include "QtCore/qlist.h" #include "private/qabstracteventdispatcher_p.h" #include "private/qpodlist_p.h" +#include "QtCore/qvarlengtharray.h" #include <sys/types.h> #include <sys/time.h> diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp index 860180e..ac505e1 100644 --- a/src/corelib/kernel/qobject.cpp +++ b/src/corelib/kernel/qobject.cpp @@ -392,7 +392,9 @@ void QMetaObject::removeGuard(QObject **ptr) if (!*ptr) return; GuardHash *hash = guardHash(); - if (!hash) + /* check that the hash is empty - otherwise we might detach + the shared_null hash, which will alloc, which is not nice */ + if (!hash || hash->isEmpty()) return; QMutexLocker locker(guardHashLock()); GuardHash::iterator it = hash->find(*ptr); @@ -434,9 +436,19 @@ void QMetaObject::changeGuard(QObject **ptr, QObject *o) */ void QObjectPrivate::clearGuards(QObject *object) { - GuardHash *hash = guardHash(); - if (hash) { - QMutexLocker locker(guardHashLock()); + GuardHash *hash = 0; + QMutex *mutex = 0; + QT_TRY { + hash = guardHash(); + mutex = guardHashLock(); + } QT_CATCH(const std::bad_alloc &) { + // do nothing in case of OOM - code below is safe + } + + /* check that the hash is empty - otherwise we might detach + the shared_null hash, which will alloc, which is not nice */ + if (hash && !hash->isEmpty()) { + QMutexLocker locker(mutex); GuardHash::iterator it = hash->find(object); const GuardHash::iterator end = hash->end(); while (it.key() == object && it != end) { @@ -754,7 +766,14 @@ QObject::~QObject() QObjectPrivate::clearGuards(this); } - emit destroyed(this); + QT_TRY { + emit destroyed(this); + } QT_CATCH(...) { + // all the signal/slots connections are still in place - if we don't + // quit now, we will crash pretty soon. + qWarning("Detected an unexpected exception in ~QObject while emitting destroyed()."); + QT_RETHROW; + } { QMutexLocker locker(&d->threadData->mutex); @@ -853,9 +872,6 @@ QObject::~QObject() objectName().isNull() ? "unnamed" : qPrintable(objectName())); } #endif - - delete d; - d_ptr = 0; } @@ -1098,11 +1114,11 @@ bool QObject::event(QEvent *e) #if defined(QT_NO_EXCEPTIONS) mce->placeMetaCall(this); #else - try { + QT_TRY { mce->placeMetaCall(this); - } catch (...) { + } QT_CATCH(...) { QObjectPrivate::resetCurrentSender(this, ¤tSender, previousSender); - throw; + QT_RETHROW; } #endif QObjectPrivate::resetCurrentSender(this, ¤tSender, previousSender); @@ -3102,9 +3118,9 @@ void QMetaObject::activate(QObject *sender, int from_signal_index, int to_signal #if defined(QT_NO_EXCEPTIONS) receiver->qt_metacall(QMetaObject::InvokeMetaMethod, method, argv ? argv : empty_argv); #else - try { + QT_TRY { receiver->qt_metacall(QMetaObject::InvokeMetaMethod, method, argv ? argv : empty_argv); - } catch (...) { + } QT_CATCH(...) { locker.relock(); QObjectPrivate::resetCurrentSender(receiver, ¤tSender, previousSender); @@ -3113,7 +3129,7 @@ void QMetaObject::activate(QObject *sender, int from_signal_index, int to_signal Q_ASSERT(connectionLists->inUse >= 0); if (connectionLists->orphaned && !connectionLists->inUse) delete connectionLists; - throw; + QT_RETHROW; } #endif diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h index dbec0a6..8d5c4e3 100644 --- a/src/corelib/kernel/qobject.h +++ b/src/corelib/kernel/qobject.h @@ -51,6 +51,7 @@ #ifdef QT_INCLUDE_COMPAT #include <QtCore/qcoreevent.h> #endif +#include <QtCore/qscopedpointer.h> QT_BEGIN_HEADER @@ -286,7 +287,7 @@ protected: QObject(QObjectPrivate &dd, QObject *parent = 0); protected: - QObjectData *d_ptr; + QScopedPointer<QObjectData> d_ptr; static const QMetaObject staticQtMetaObject; diff --git a/src/corelib/kernel/qsharedmemory_symbian.cpp b/src/corelib/kernel/qsharedmemory_symbian.cpp index b3b50e3..d05f9f3 100644 --- a/src/corelib/kernel/qsharedmemory_symbian.cpp +++ b/src/corelib/kernel/qsharedmemory_symbian.cpp @@ -116,11 +116,9 @@ bool QSharedMemoryPrivate::create(int size) return false; } - HBufC* buffer = qt_QString2HBufCNewL(safeKey); + TPtrC ptr(qt_QString2TPtrC(safeKey)); - TInt err = chunk.CreateGlobal(*buffer, size, size); - - delete buffer; + TInt err = chunk.CreateGlobal(ptr, size, size); setErrorString(function, err); @@ -147,15 +145,11 @@ bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode) return false; } - HBufC* buffer = qt_QString2HBufCNewL(safeKey); + TPtrC ptr(qt_QString2TPtrC(safeKey)); TInt err = KErrNoMemory; - if (buffer) { - err = chunk.OpenGlobal(*buffer, false); - } - - delete buffer; + err = chunk.OpenGlobal(ptr, false); if (err != KErrNone) { setErrorString(function, err); diff --git a/src/corelib/kernel/qsystemsemaphore.cpp b/src/corelib/kernel/qsystemsemaphore.cpp index 7e09a6e..fb9385a 100644 --- a/src/corelib/kernel/qsystemsemaphore.cpp +++ b/src/corelib/kernel/qsystemsemaphore.cpp @@ -170,8 +170,8 @@ QT_BEGIN_NAMESPACE \sa acquire(), key() */ QSystemSemaphore::QSystemSemaphore(const QString &key, int initialValue, AccessMode mode) + : d(new QSystemSemaphorePrivate) { - d = new QSystemSemaphorePrivate; setKey(key, initialValue, mode); } @@ -193,7 +193,6 @@ QSystemSemaphore::QSystemSemaphore(const QString &key, int initialValue, AccessM QSystemSemaphore::~QSystemSemaphore() { d->cleanHandle(); - delete d; } /*! diff --git a/src/corelib/kernel/qsystemsemaphore.h b/src/corelib/kernel/qsystemsemaphore.h index 5a02072..3cafebf 100644 --- a/src/corelib/kernel/qsystemsemaphore.h +++ b/src/corelib/kernel/qsystemsemaphore.h @@ -43,6 +43,7 @@ #define QSYSTEMSEMAPHORE_H #include <QtCore/qstring.h> +#include <QtCore/qscopedpointer.h> QT_BEGIN_HEADER @@ -89,7 +90,7 @@ public: private: Q_DISABLE_COPY(QSystemSemaphore) - QSystemSemaphorePrivate *d; + QScopedPointer<QSystemSemaphorePrivate> d; }; #endif // QT_NO_SYSTEMSEMAPHORE diff --git a/src/corelib/kernel/qsystemsemaphore_symbian.cpp b/src/corelib/kernel/qsystemsemaphore_symbian.cpp index cd5c3ff..8179046 100644 --- a/src/corelib/kernel/qsystemsemaphore_symbian.cpp +++ b/src/corelib/kernel/qsystemsemaphore_symbian.cpp @@ -90,13 +90,12 @@ int QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode) if (key.isEmpty()) return 0; QString safeName = makeKeyFileName(); - HBufC* name = qt_QString2HBufCNewL(safeName); + TPtrC name(qt_QString2TPtrC(safeName)); int err; - err = semaphore.OpenGlobal(*name,EOwnerProcess); + err = semaphore.OpenGlobal(name,EOwnerProcess); if (err == KErrNotFound){ - err = semaphore.CreateGlobal(*name,initialValue, EOwnerProcess); + err = semaphore.CreateGlobal(name,initialValue, EOwnerProcess); } - delete name; if (err){ setErrorString(QLatin1String("QSystemSemaphore::handle"),err); return 0; diff --git a/src/corelib/plugin/qlibrary.cpp b/src/corelib/plugin/qlibrary.cpp index 420dd1d..0ca0169 100644 --- a/src/corelib/plugin/qlibrary.cpp +++ b/src/corelib/plugin/qlibrary.cpp @@ -611,10 +611,10 @@ bool QLibraryPrivate::isPlugin(QSettings *settings) .arg(fileName); QStringList reg; #ifndef QT_NO_SETTINGS - bool madeSettings = false; + QScopedPointer<QSettings> madeSettings; if (!settings) { settings = new QSettings(QSettings::UserScope, QLatin1String("Trolltech")); - madeSettings = true; + madeSettings.reset(settings); } reg = settings->value(regkey).toStringList(); #endif @@ -708,8 +708,7 @@ bool QLibraryPrivate::isPlugin(QSettings *settings) #endif } #ifndef QT_NO_SETTINGS - if (madeSettings) - delete settings; + madeSettings.reset(); #endif if (!success) { diff --git a/src/corelib/thread/qthread.cpp b/src/corelib/thread/qthread.cpp index cb44a25..f1bdc64 100644 --- a/src/corelib/thread/qthread.cpp +++ b/src/corelib/thread/qthread.cpp @@ -163,9 +163,9 @@ QAdoptedThread::~QAdoptedThread() QThread *QAdoptedThread::createThreadForAdoption() { - QThread *t = new QAdoptedThread(0); - t->moveToThread(t); - return t; + QScopedPointer<QThread> t(new QAdoptedThread(0)); + t->moveToThread(t.data()); + return t.take(); } void QAdoptedThread::run() @@ -483,10 +483,10 @@ uint QThread::stackSize() const int QThread::exec() { Q_D(QThread); - d->mutex.lock(); + QMutexLocker locker(&d->mutex); d->data->quitNow = false; QEventLoop eventLoop; - d->mutex.unlock(); + locker.unlock(); int returnCode = eventLoop.exec(); return returnCode; } @@ -734,8 +734,9 @@ QThreadData* QThreadData::current() { static QThreadData *data = 0; // reinterpret_cast<QThreadData *>(pthread_getspecific(current_thread_data_key)); if (!data) { - data = new QThreadData; - data->thread = new QAdoptedThread(data); + QScopedPointer<QThreadData> newdata(new QThreadData); + newdata->thread = new QAdoptedThread(newdata.data()); + data = newdata.take(); data->deref(); } return data; diff --git a/src/corelib/thread/qthread_unix.cpp b/src/corelib/thread/qthread_unix.cpp index 567c936..d2a824a 100644 --- a/src/corelib/thread/qthread_unix.cpp +++ b/src/corelib/thread/qthread_unix.cpp @@ -124,7 +124,14 @@ QThreadData *QThreadData::current() } else { data = new QThreadData; pthread_setspecific(current_thread_data_key, data); - data->thread = new QAdoptedThread(data); + QT_TRY { + data->thread = new QAdoptedThread(data); + } QT_CATCH(...) { + pthread_setspecific(current_thread_data_key, 0); + data->deref(); + data = 0; + QT_RETHROW; + } data->deref(); } if (!QCoreApplicationPrivate::theMainThread) diff --git a/src/corelib/thread/qthread_win.cpp b/src/corelib/thread/qthread_win.cpp index 7094e3d..76e551e 100644 --- a/src/corelib/thread/qthread_win.cpp +++ b/src/corelib/thread/qthread_win.cpp @@ -112,7 +112,14 @@ QThreadData *QThreadData::current() // This needs to be called prior to new AdoptedThread() to // avoid recursion. TlsSetValue(qt_current_thread_data_tls_index, threadData); - threadData->thread = new QAdoptedThread(threadData); + QT_TRY { + threadData->thread = new QAdoptedThread(threadData); + } QT_CATCH(...) { + TlsSetValue(qt_current_thread_data_tls_index, 0); + threadData->deref(); + threadData = 0; + QT_RETHROW; + } threadData->deref(); } diff --git a/src/corelib/thread/qthreadstorage.cpp b/src/corelib/thread/qthreadstorage.cpp index 35c55c1..4657009 100644 --- a/src/corelib/thread/qthreadstorage.cpp +++ b/src/corelib/thread/qthreadstorage.cpp @@ -101,12 +101,14 @@ void **QThreadStorageData::get() const qWarning("QThreadStorage::get: QThreadStorage can only be used with threads started with QThread"); return 0; } - QMap<int, void *>::iterator it = data->tls.find(id); + QMap<int, void *>::const_iterator it = data->tls.constFind(id); DEBUG_MSG("QThreadStorageData: Returning storage %d, data %p, for thread %p", id, it != data->tls.end() ? it.value() : 0, data->thread); - return it != data->tls.end() && it.value() != 0 ? &it.value() : 0; + // const_cast below is a bit evil - but we have to make sure not to detach here + // otherwise we'll go bonkers in oom situations + return it != data->tls.constEnd() && it.value() != 0 ? const_cast<void **>(&it.value()) : 0; } void **QThreadStorageData::set(void *p) @@ -129,9 +131,9 @@ void **QThreadStorageData::set(void *p) void *q = it.value(); it.value() = 0; - mutex()->lock(); + QMutexLocker locker(mutex()); void (*destructor)(void *) = destructors()->value(id); - mutex()->unlock(); + locker.unlock(); destructor(q); } @@ -167,9 +169,9 @@ void QThreadStorageData::finish(void **p) continue; } - mutex()->lock(); + QMutexLocker locker(mutex()); void (*destructor)(void *) = destructors()->value(id); - mutex()->unlock(); + locker.unlock(); if (!destructor) { if (QThread::currentThread()) diff --git a/src/corelib/tools/qbitarray.cpp b/src/corelib/tools/qbitarray.cpp index a947ab5..7168a9a 100644 --- a/src/corelib/tools/qbitarray.cpp +++ b/src/corelib/tools/qbitarray.cpp @@ -209,6 +209,8 @@ void QBitArray::resize(int size) uchar* c = reinterpret_cast<uchar*>(d.data()); if (size > (s << 3)) memset(c + s, 0, d.size() - s); + else if ( size % 8) + *(c+1+size/8) &= (1 << (size%8)) - 1; *c = d.size()*8 - size; } } diff --git a/src/corelib/tools/qbytearray.cpp b/src/corelib/tools/qbytearray.cpp index 6aa35f3..ae6561f 100644 --- a/src/corelib/tools/qbytearray.cpp +++ b/src/corelib/tools/qbytearray.cpp @@ -1233,14 +1233,11 @@ QByteArray::QByteArray(const char *str) } else { int len = qstrlen(str); d = static_cast<Data *>(qMalloc(sizeof(Data)+len)); - if (!d) { - d = &shared_null; - } else { - d->ref = 0;; - d->alloc = d->size = len; - d->data = d->array; - memcpy(d->array, str, len+1); // include null terminator - } + Q_CHECK_PTR(d); + d->ref = 0;; + d->alloc = d->size = len; + d->data = d->array; + memcpy(d->array, str, len+1); // include null terminator } d->ref.ref(); } @@ -1264,15 +1261,12 @@ QByteArray::QByteArray(const char *data, int size) d = &shared_empty; } else { d = static_cast<Data *>(qMalloc(sizeof(Data) + size)); - if (!d) { - d = &shared_null; - } else { - d->ref = 0; - d->alloc = d->size = size; - d->data = d->array; - memcpy(d->array, data, size); - d->array[size] = '\0'; - } + Q_CHECK_PTR(d); + d->ref = 0; + d->alloc = d->size = size; + d->data = d->array; + memcpy(d->array, data, size); + d->array[size] = '\0'; } d->ref.ref(); } @@ -1290,15 +1284,12 @@ QByteArray::QByteArray(int size, char ch) d = &shared_null; } else { d = static_cast<Data *>(qMalloc(sizeof(Data)+size)); - if (!d) { - d = &shared_null; - } else { - d->ref = 0; - d->alloc = d->size = size; - d->data = d->array; - d->array[size] = '\0'; - memset(d->array, ch, size); - } + Q_CHECK_PTR(d); + d->ref = 0; + d->alloc = d->size = size; + d->data = d->array; + d->array[size] = '\0'; + memset(d->array, ch, size); } d->ref.ref(); } @@ -1334,8 +1325,7 @@ void QByteArray::resize(int size) // QByteArray a(sz); // Data *x = static_cast<Data *>(qMalloc(sizeof(Data)+size)); - if (!x) - return; + Q_CHECK_PTR(x); x->ref = 1; x->alloc = x->size = size; x->data = x->array; @@ -1377,8 +1367,7 @@ void QByteArray::realloc(int alloc) { if (d->ref != 1 || d->data != d->array) { Data *x = static_cast<Data *>(qMalloc(sizeof(Data) + alloc)); - if (!x) - return; + Q_CHECK_PTR(x); x->size = qMin(alloc, d->size); ::memcpy(x->array, d->data, x->size); x->array[x->size] = '\0'; @@ -1390,8 +1379,7 @@ void QByteArray::realloc(int alloc) d = x; } else { Data *x = static_cast<Data *>(qRealloc(d, sizeof(Data) + alloc)); - if (!x) - return; + Q_CHECK_PTR(x); x->alloc = alloc; x->data = x->array; d = x; @@ -1812,11 +1800,13 @@ QByteArray &QByteArray::replace(const char *before, int bsize, const char *after const char *b = before; if (after >= d->data && after < d->data + d->size) { char *copy = (char *)malloc(asize); + Q_CHECK_PTR(copy); memcpy(copy, after, asize); a = copy; } if (before >= d->data && before < d->data + d->size) { char *copy = (char *)malloc(bsize); + Q_CHECK_PTR(copy); memcpy(copy, before, bsize); b = copy; } @@ -3738,6 +3728,7 @@ QByteArray QByteArray::number(double n, char f, int prec) QByteArray QByteArray::fromRawData(const char *data, int size) { Data *x = static_cast<Data *>(qMalloc(sizeof(Data))); + Q_CHECK_PTR(x); if (data) { x->data = const_cast<char *>(data); } else { diff --git a/src/corelib/tools/qdatetime.cpp b/src/corelib/tools/qdatetime.cpp index 781514c..b43891c 100644 --- a/src/corelib/tools/qdatetime.cpp +++ b/src/corelib/tools/qdatetime.cpp @@ -2200,8 +2200,8 @@ int QTime::elapsed() const \sa isValid() */ QDateTime::QDateTime() + : d(new QDateTimePrivate) { - d = new QDateTimePrivate; } @@ -2211,8 +2211,8 @@ QDateTime::QDateTime() */ QDateTime::QDateTime(const QDate &date) + : d(new QDateTimePrivate) { - d = new QDateTimePrivate; d->date = date; d->time = QTime(0, 0, 0); } @@ -2225,8 +2225,8 @@ QDateTime::QDateTime(const QDate &date) */ QDateTime::QDateTime(const QDate &date, const QTime &time, Qt::TimeSpec spec) + : d(new QDateTimePrivate) { - d = new QDateTimePrivate; d->date = date; d->time = date.isValid() && !time.isValid() ? QTime(0, 0, 0) : time; d->spec = (spec == Qt::UTC) ? QDateTimePrivate::UTC : QDateTimePrivate::LocalUnknown; @@ -2237,8 +2237,8 @@ QDateTime::QDateTime(const QDate &date, const QTime &time, Qt::TimeSpec spec) */ QDateTime::QDateTime(const QDateTime &other) + : d(other.d.data()) { - d = other.d; d->ref.ref(); } @@ -2247,8 +2247,6 @@ QDateTime::QDateTime(const QDateTime &other) */ QDateTime::~QDateTime() { - if (!d->ref.deref()) - delete d; } /*! @@ -2258,7 +2256,7 @@ QDateTime::~QDateTime() QDateTime &QDateTime::operator=(const QDateTime &other) { - qAtomicAssign(d, other.d); + d.assign(other.d.data()); return *this; } @@ -3298,7 +3296,7 @@ QDateTime QDateTime::fromString(const QString &string, const QString &format) */ void QDateTime::detach() { - qAtomicDetach(d); + d.detach(); } /***************************************************************************** diff --git a/src/corelib/tools/qdatetime.h b/src/corelib/tools/qdatetime.h index 3278297..cf4246d 100644 --- a/src/corelib/tools/qdatetime.h +++ b/src/corelib/tools/qdatetime.h @@ -44,6 +44,7 @@ #include <QtCore/qstring.h> #include <QtCore/qnamespace.h> +#include <QtCore/qscopedpointer.h> QT_BEGIN_HEADER @@ -284,7 +285,7 @@ public: private: friend class QDateTimePrivate; void detach(); - QDateTimePrivate *d; + QScopedSharedPointer<QDateTimePrivate> d; #ifndef QT_NO_DATASTREAM friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDateTime &); diff --git a/src/corelib/tools/qharfbuzz.cpp b/src/corelib/tools/qharfbuzz.cpp index 1940209..923eda4 100644 --- a/src/corelib/tools/qharfbuzz.cpp +++ b/src/corelib/tools/qharfbuzz.cpp @@ -126,6 +126,7 @@ char *HB_TextCodec_ConvertFromUnicode(void *codec, const HB_UChar16 *unicode, hb QByteArray data = reinterpret_cast<QTextCodec *>(codec)->fromUnicode((const QChar *)unicode, length); // ### suboptimal char *output = (char *)malloc(data.length() + 1); + Q_CHECK_PTR(output); memcpy(output, data.constData(), data.length() + 1); if (outputLength) *outputLength = data.length(); diff --git a/src/corelib/tools/qhash.cpp b/src/corelib/tools/qhash.cpp index 2313e0e..a703621 100644 --- a/src/corelib/tools/qhash.cpp +++ b/src/corelib/tools/qhash.cpp @@ -171,7 +171,9 @@ QHashData QHashData::shared_null = { void *QHashData::allocateNode() { - return qMalloc(nodeSize); + void *ptr = qMalloc(nodeSize); + Q_CHECK_PTR(ptr); + return ptr; } void QHashData::freeNode(void *node) @@ -181,6 +183,13 @@ void QHashData::freeNode(void *node) QHashData *QHashData::detach_helper(void (*node_duplicate)(Node *, void *), int nodeSize) { + return detach_helper( node_duplicate, 0, nodeSize ); +} + +QHashData *QHashData::detach_helper(void (*node_duplicate)(Node *, void *), + void (*node_delete)(Node *), + int nodeSize) +{ union { QHashData *d; Node *e; @@ -197,18 +206,43 @@ QHashData *QHashData::detach_helper(void (*node_duplicate)(Node *, void *), int d->sharable = true; if (numBuckets) { - d->buckets = new Node *[numBuckets]; + QT_TRY { + d->buckets = new Node *[numBuckets]; + } QT_CATCH(...) { + // restore a consistent state for d + d->numBuckets = 0; + // roll back + d->free_helper(node_delete); + QT_RETHROW; + } + Node *this_e = reinterpret_cast<Node *>(this); for (int i = 0; i < numBuckets; ++i) { Node **nextNode = &d->buckets[i]; Node *oldNode = buckets[i]; while (oldNode != this_e) { - Node *dup = static_cast<Node *>(allocateNode()); - node_duplicate(oldNode, dup); - dup->h = oldNode->h; - *nextNode = dup; - nextNode = &dup->next; - oldNode = oldNode->next; + QT_TRY { + Node *dup = static_cast<Node *>(allocateNode()); + + QT_TRY { + node_duplicate(oldNode, dup); + } QT_CATCH(...) { + freeNode( dup ); + QT_RETHROW; + } + + dup->h = oldNode->h; + *nextNode = dup; + nextNode = &dup->next; + oldNode = oldNode->next; + } QT_CATCH(...) { + // restore a consistent state for d + *nextNode = e; + d->numBuckets = i+1; + // roll back + d->free_helper(node_delete); + QT_RETHROW; + } } *nextNode = e; } @@ -216,6 +250,26 @@ QHashData *QHashData::detach_helper(void (*node_duplicate)(Node *, void *), int return d; } +void QHashData::free_helper(void (*node_delete)(Node *)) +{ + if (node_delete) { + Node *this_e = reinterpret_cast<Node *>(this); + Node **bucket = reinterpret_cast<Node **>(this->buckets); + + int n = numBuckets; + while (n--) { + Node *cur = *bucket++; + while (cur != this_e) { + Node *next = cur->next; + node_delete(cur); + cur = next; + } + } + } + delete [] buckets; + delete this; +} + QHashData::Node *QHashData::nextNode(Node *node) { union { @@ -298,9 +352,10 @@ void QHashData::rehash(int hint) Node **oldBuckets = buckets; int oldNumBuckets = numBuckets; + int nb = primeForNumBits(hint); + buckets = new Node *[nb]; numBits = hint; - numBuckets = primeForNumBits(hint); - buckets = new Node *[numBuckets]; + numBuckets = nb; for (int i = 0; i < numBuckets; ++i) buckets[i] = e; @@ -327,8 +382,7 @@ void QHashData::rehash(int hint) void QHashData::destroyAndFree() { - delete [] buckets; - delete this; + free_helper(0); } #ifdef QT_QHASH_DEBUG diff --git a/src/corelib/tools/qhash.h b/src/corelib/tools/qhash.h index 41b4794..b3f82e9 100644 --- a/src/corelib/tools/qhash.h +++ b/src/corelib/tools/qhash.h @@ -129,12 +129,15 @@ struct Q_CORE_EXPORT QHashData void *allocateNode(); void freeNode(void *node); - QHashData *detach_helper(void (*node_duplicate)(Node *, void *), int nodeSize); + QHashData *detach_helper(void (*node_duplicate)(Node *, void *), int nodeSize); // ### Qt5 remove me + QHashData *detach_helper(void (*node_duplicate)(Node *, void *), void (*node_delete)(Node *), + int nodeSize); void mightGrow(); bool willGrow(); void hasShrunk(); void rehash(int hint); - void destroyAndFree(); + void free_helper(void (*node_delete)(Node *)); + void destroyAndFree(); // ### Qt5 remove me Node *firstNode(); #ifdef QT_QHASH_DEBUG void dump(); @@ -476,21 +479,30 @@ private: Node **findNode(const Key &key, uint *hp = 0) const; Node *createNode(uint h, const Key &key, const T &value, Node **nextNode); void deleteNode(Node *node); + static void deleteNode(QHashData::Node *node); static void duplicateNode(QHashData::Node *originalNode, void *newNode); }; + template <class Key, class T> Q_INLINE_TEMPLATE void QHash<Key, T>::deleteNode(Node *node) { + deleteNode(reinterpret_cast<QHashData::Node*>(node)); +} + + +template <class Key, class T> +Q_INLINE_TEMPLATE void QHash<Key, T>::deleteNode(QHashData::Node *node) +{ #ifdef Q_CC_BOR - node->~QHashNode<Key, T>(); + concrete(node)->~QHashNode<Key, T>(); #elif defined(QT_NO_PARTIAL_TEMPLATE_SPECIALIZATION) - node->~QHashNode(); + concrete(node)->~QHashNode(); #else - node->~Node(); + concrete(node)->~Node(); #endif - d->freeNode(node); + qFree(node); } template <class Key, class T> @@ -538,18 +550,7 @@ Q_INLINE_TEMPLATE QHash<Key, T> &QHash<Key, T>::unite(const QHash<Key, T> &other template <class Key, class T> Q_OUTOFLINE_TEMPLATE void QHash<Key, T>::freeData(QHashData *x) { - Node *e_for_x = reinterpret_cast<Node *>(x); - Node **bucket = reinterpret_cast<Node **>(x->buckets); - int n = x->numBuckets; - while (n--) { - Node *cur = *bucket++; - while (cur != e_for_x) { - Node *next = cur->next; - deleteNode(cur); - cur = next; - } - } - x->destroyAndFree(); + x->free_helper(deleteNode); } template <class Key, class T> @@ -561,7 +562,7 @@ Q_INLINE_TEMPLATE void QHash<Key, T>::clear() template <class Key, class T> Q_OUTOFLINE_TEMPLATE void QHash<Key, T>::detach_helper() { - QHashData *x = d->detach_helper(duplicateNode, + QHashData *x = d->detach_helper(duplicateNode, deleteNode, QTypeInfo<T>::isDummy ? sizeof(DummyNode) : sizeof(Node)); if (!d->ref.deref()) freeData(d); diff --git a/src/corelib/tools/qlinkedlist.h b/src/corelib/tools/qlinkedlist.h index 6a85386..79311bc 100644 --- a/src/corelib/tools/qlinkedlist.h +++ b/src/corelib/tools/qlinkedlist.h @@ -265,15 +265,22 @@ void QLinkedList<T>::detach_helper() x.d->ref = 1; x.d->size = d->size; x.d->sharable = true; - Node *i = e->n, *j = x.e; - while (i != e) { - j->n = new Node(i->t); - j->n->p = j; - i = i->n; - j = j->n; + Node *original = e->n; + Node *copy = x.e; + while (original != e) { + QT_TRY { + copy->n = new Node(original->t); + copy->n->p = copy; + original = original->n; + copy = copy->n; + } QT_CATCH(...) { + copy->n = x.e; + free(x.d); + QT_RETHROW; + } } - j->n = x.e; - x.e->p = j; + copy->n = x.e; + x.e->p = copy; if (!d->ref.deref()) free(d); d = x.d; @@ -474,14 +481,21 @@ QLinkedList<T> &QLinkedList<T>::operator+=(const QLinkedList<T> &l) detach(); int n = l.d->size; d->size += n; - Node *o = l.e->n; + Node *original = l.e->n; while (n--) { - Node *i = new Node(o->t); - o = o->n; - i->n = e; - i->p = e->p; - i->p->n = i; - e->p = i; + QT_TRY { + Node *copy = new Node(original->t); + original = original->n; + copy->n = e; + copy->p = e->p; + copy->p->n = copy; + e->p = copy; + } QT_CATCH(...) { + // restore the original list + while (n++<d->size) + removeLast(); + QT_RETHROW; + } } return *this; } diff --git a/src/corelib/tools/qlist.h b/src/corelib/tools/qlist.h index 3c21ec1..89e082b 100644 --- a/src/corelib/tools/qlist.h +++ b/src/corelib/tools/qlist.h @@ -117,6 +117,7 @@ public: inline int size() const { return p.size(); } inline void detach() { if (d->ref != 1) detach_helper(); } + inline void detachShared() { if (d->ref != 1 && d != &QListData::shared_null) detach_helper(); } inline bool isDetached() const { return d->ref == 1; } inline void setSharable(bool sharable) { if (!sharable) detach(); d->sharable = sharable; } @@ -352,12 +353,27 @@ Q_INLINE_TEMPLATE void QList<T>::node_destruct(Node *n) template <typename T> Q_INLINE_TEMPLATE void QList<T>::node_copy(Node *from, Node *to, Node *src) { - if (QTypeInfo<T>::isLarge || QTypeInfo<T>::isStatic) - while(from != to) - (from++)->v = new T(*reinterpret_cast<T*>((src++)->v)); - else if (QTypeInfo<T>::isComplex) - while(from != to) - new (from++) T(*reinterpret_cast<T*>(src++)); + Node *current = from; + if (QTypeInfo<T>::isLarge || QTypeInfo<T>::isStatic) { + QT_TRY { + while(current != to) + (current++)->v = new T(*reinterpret_cast<T*>((src++)->v)); + } QT_CATCH(...) { + while (current != from) + delete reinterpret_cast<T*>(current--); + QT_RETHROW; + } + } + else if (QTypeInfo<T>::isComplex) { + QT_TRY { + while(current != to) + new (current++) T(*reinterpret_cast<T*>(src++)); + } QT_CATCH(...) { + while (current != from) + (reinterpret_cast<T*>(current--))->~T(); + QT_RETHROW; + } + } } template <typename T> @@ -384,8 +400,16 @@ Q_INLINE_TEMPLATE QList<T> &QList<T>::operator=(const QList<T> &l) } template <typename T> inline typename QList<T>::iterator QList<T>::insert(iterator before, const T &t) -{ Node *n = reinterpret_cast<Node *>(p.insert(before.i-reinterpret_cast<Node *>(p.begin()))); - node_construct(n,t); return n; } +{ + Node *n = reinterpret_cast<Node *>(p.insert(before.i - reinterpret_cast<Node *>(p.begin()))); + QT_TRY { + node_construct(n, t); + } QT_CATCH(...) { + p.remove(before.i - reinterpret_cast<Node *>(p.begin())); + QT_RETHROW; + } + return n; +} template <typename T> inline typename QList<T>::iterator QList<T>::erase(iterator it) { node_destruct(it.i); @@ -423,10 +447,22 @@ Q_OUTOFLINE_TEMPLATE void QList<T>::append(const T &t) { detach(); if (QTypeInfo<T>::isLarge || QTypeInfo<T>::isStatic) { - node_construct(reinterpret_cast<Node *>(p.append()), t); + Node *n = reinterpret_cast<Node *>(p.append()); + QT_TRY { + node_construct(n, t); + } QT_CATCH(...) { + --d->end; + QT_RETHROW; + } } else { const T cpy(t); - node_construct(reinterpret_cast<Node *>(p.append()), cpy); + Node *n = reinterpret_cast<Node *>(p.append()); + QT_TRY { + node_construct(n, cpy); + } QT_CATCH(...) { + --d->end; + QT_RETHROW; + } } } @@ -435,10 +471,22 @@ inline void QList<T>::prepend(const T &t) { detach(); if (QTypeInfo<T>::isLarge || QTypeInfo<T>::isStatic) { - node_construct(reinterpret_cast<Node *>(p.prepend()), t); + Node *n = reinterpret_cast<Node *>(p.prepend()); + QT_TRY { + node_construct(n, t); + } QT_CATCH(...) { + ++d->begin; + QT_RETHROW; + } } else { const T cpy(t); - node_construct(reinterpret_cast<Node *>(p.prepend()), cpy); + Node *n = reinterpret_cast<Node *>(p.prepend()); + QT_TRY { + node_construct(n, cpy); + } QT_CATCH(...) { + ++d->begin; + QT_RETHROW; + } } } @@ -447,10 +495,22 @@ inline void QList<T>::insert(int i, const T &t) { detach(); if (QTypeInfo<T>::isLarge || QTypeInfo<T>::isStatic) { - node_construct(reinterpret_cast<Node *>(p.insert(i)), t); + Node *n = reinterpret_cast<Node *>(p.insert(i)); + QT_TRY { + node_construct(n, t); + } QT_CATCH(...) { + p.remove(i); + QT_RETHROW; + } } else { const T cpy(t); - node_construct(reinterpret_cast<Node *>(p.insert(i)), cpy); + Node *n = reinterpret_cast<Node *>(p.insert(i)); + QT_TRY { + node_construct(n, cpy); + } QT_CATCH(...) { + p.remove(i); + QT_RETHROW; + } } } @@ -522,7 +582,14 @@ Q_OUTOFLINE_TEMPLATE void QList<T>::detach_helper() { Node *n = reinterpret_cast<Node *>(p.begin()); QListData::Data *x = p.detach2(); - node_copy(reinterpret_cast<Node *>(p.begin()), reinterpret_cast<Node *>(p.end()), n); + QT_TRY { + node_copy(reinterpret_cast<Node *>(p.begin()), reinterpret_cast<Node *>(p.end()), n); + } QT_CATCH(...) { + qFree(d); + d = x; + QT_RETHROW; + } + if (!x->ref.deref()) free(x); } @@ -572,7 +639,7 @@ Q_OUTOFLINE_TEMPLATE void QList<T>::clear() template <typename T> Q_OUTOFLINE_TEMPLATE int QList<T>::removeAll(const T &_t) { - detach(); + detachShared(); const T t = _t; int removedCount=0, i=0; Node *n; @@ -590,7 +657,7 @@ Q_OUTOFLINE_TEMPLATE int QList<T>::removeAll(const T &_t) template <typename T> Q_OUTOFLINE_TEMPLATE bool QList<T>::removeOne(const T &_t) { - detach(); + detachShared(); int index = indexOf(_t); if (index != -1) { removeAt(index); diff --git a/src/corelib/tools/qlistdata.cpp b/src/corelib/tools/qlistdata.cpp index 34a5d80..efdde64 100644 --- a/src/corelib/tools/qlistdata.cpp +++ b/src/corelib/tools/qlistdata.cpp @@ -39,6 +39,7 @@ ** ****************************************************************************/ +#include <new> #include "qlist.h" #include "qtools_p.h" #include <string.h> @@ -71,8 +72,7 @@ static int grow(int size) QListData::Data *QListData::detach() { Data *x = static_cast<Data *>(qMalloc(DataHeaderSize + d->alloc * sizeof(void *))); - if (!x) - qFatal("QList: Out of memory"); + Q_CHECK_PTR(x); ::memcpy(x, d, DataHeaderSize + d->alloc * sizeof(void *)); x->alloc = d->alloc; @@ -91,10 +91,10 @@ QListData::Data *QListData::detach() QListData::Data *QListData::detach2() { Data *x = d; - d = static_cast<Data *>(qMalloc(DataHeaderSize + x->alloc * sizeof(void *))); - if (!d) - qFatal("QList: Out of memory"); + Data* t = static_cast<Data *>(qMalloc(DataHeaderSize + x->alloc * sizeof(void *))); + Q_CHECK_PTR(t); + d = t; ::memcpy(d, x, DataHeaderSize + x->alloc * sizeof(void *)); d->alloc = x->alloc; d->ref = 1; @@ -109,8 +109,7 @@ void QListData::realloc(int alloc) { Q_ASSERT(d->ref == 1); Data *x = static_cast<Data *>(qRealloc(d, DataHeaderSize + alloc * sizeof(void *))); - if (!x) - qFatal("QList: Out of memory"); + Q_CHECK_PTR(x); d = x; d->alloc = alloc; @@ -514,6 +513,15 @@ void **QListData::erase(void **xi) \internal */ +/*! \fn void QList::detachShared() + + \internal + + like detach(), but does nothing if we're shared_null. + This prevents needless mallocs, and makes QList more exception safe + in case of cleanup work done in destructors on empty lists. +*/ + /*! \fn bool QList::isDetached() const \internal diff --git a/src/corelib/tools/qlocale.cpp b/src/corelib/tools/qlocale.cpp index 4d042ae..4317933 100644 --- a/src/corelib/tools/qlocale.cpp +++ b/src/corelib/tools/qlocale.cpp @@ -5124,6 +5124,7 @@ static Bigint *Balloc(int k) x = 1 << k; rv = static_cast<Bigint *>(MALLOC(sizeof(Bigint) + (x-1)*sizeof(Long))); + Q_CHECK_PTR(rv); rv->k = k; rv->maxwds = x; rv->sign = rv->wds = 0; @@ -6788,6 +6789,7 @@ static char *_qdtoa( NEEDS_VOLATILE double d, int mode, int ndigits, int *decpt, i = 1; } *resultp = static_cast<char *>(malloc(i + 1)); + Q_CHECK_PTR(resultp); s = s0 = *resultp; if (ilim >= 0 && ilim <= Quick_max && try_quick) { @@ -7209,6 +7211,7 @@ Q_CORE_EXPORT char *qdtoa( double d, int mode, int ndigits, int *decpt, int *sig n = i + 1; } *resultp = static_cast<char*>(malloc(n + 1)); + Q_CHECK_PTR(resultp); qstrncpy(*resultp, res, n + 1); return *resultp; } diff --git a/src/corelib/tools/qmap.cpp b/src/corelib/tools/qmap.cpp index 07df28d..ceaf370 100644 --- a/src/corelib/tools/qmap.cpp +++ b/src/corelib/tools/qmap.cpp @@ -59,6 +59,7 @@ QMapData QMapData::shared_null = { QMapData *QMapData::createData() { QMapData *d = new QMapData; + Q_CHECK_PTR(d); Node *e = reinterpret_cast<Node *>(d); e->backward = e; e->forward[0] = e; @@ -84,6 +85,15 @@ void QMapData::continueFreeData(int offset) delete this; } +/*! + Creates a new node inside the data structure. + + \a update is an array with pointers to the node after which the new node + should be inserted. Because of the strange skip list data structure there + could be several pointers to this node on different levels. + \a offset is an amount of bytes that needs to reserved just before the + QMapData::Node structure. +*/ QMapData::Node *QMapData::node_create(Node *update[], int offset) { int level = 0; @@ -94,10 +104,6 @@ QMapData::Node *QMapData::node_create(Node *update[], int offset) mask <<= Sparseness; } - ++randomBits; - if (level == 3 && !insertInOrder) - randomBits = qrand(); - if (level > topLevel) { Node *e = reinterpret_cast<Node *>(this); level = ++topLevel; @@ -105,7 +111,13 @@ QMapData::Node *QMapData::node_create(Node *update[], int offset) update[level] = e; } + ++randomBits; + if (level == 3 && !insertInOrder) + randomBits = qrand(); + void *concreteNode = qMalloc(offset + sizeof(Node) + level * sizeof(Node *)); + Q_CHECK_PTR(concreteNode); + Node *abstractNode = reinterpret_cast<Node *>(reinterpret_cast<char *>(concreteNode) + offset); abstractNode->backward = update[0]; @@ -116,6 +128,7 @@ QMapData::Node *QMapData::node_create(Node *update[], int offset) update[i]->forward[i] = abstractNode; update[i] = abstractNode; } + // update[level+1]=reinterpret_cast<Node *>(this); ++size; return abstractNode; } @@ -146,7 +159,7 @@ uint QMapData::adjust_ptr(Node *node) void QMapData::dump() { - qDebug("Map data (ref = %d, size = %d, randomBits = %#.8x)", ref.atomic, size, randomBits); + qDebug("Map data (ref = %d, size = %d, randomBits = %#.8x)", int(ref), size, randomBits); QString preOutput; QVector<QString> output(topLevel + 1); @@ -158,12 +171,12 @@ void QMapData::dump() Node *update[LastLevel + 1]; for (int i = 0; i <= topLevel; ++i) { - str.sprintf("%d: [%.8x] -", i, adjust_ptr(forward[i])); + str.sprintf("%d: [%.8x] -", i, adjust_ptr(reinterpret_cast<Node *>(forward[i]))); output[i] += str; - update[i] = forward[i]; + update[i] = reinterpret_cast<Node *>(forward[i]); } - Node *node = forward[0]; + Node *node = reinterpret_cast<Node *>(forward[0]); while (node != e) { int level = 0; while (level < topLevel && update[level + 1] == node) @@ -178,13 +191,13 @@ void QMapData::dump() update[i] = node->forward[i]; } for (int j = level + 1; j <= topLevel; ++j) - output[j] += "---------------"; + output[j] += QString("---------------"); node = node->forward[0]; } - qDebug(preOutput.ascii()); + qDebug("%s", preOutput.ascii()); for (int i = 0; i <= topLevel; ++i) - qDebug(output[i].ascii()); + qDebug("%s", output[i].ascii()); } #endif diff --git a/src/corelib/tools/qmap.h b/src/corelib/tools/qmap.h index 0215a78..bd9ba74 100644 --- a/src/corelib/tools/qmap.h +++ b/src/corelib/tools/qmap.h @@ -416,9 +416,29 @@ Q_INLINE_TEMPLATE typename QMapData::Node * QMap<Key, T>::node_create(QMapData *adt, QMapData::Node *aupdate[], const Key &akey, const T &avalue) { QMapData::Node *abstractNode = adt->node_create(aupdate, payload()); - Node *concreteNode = concrete(abstractNode); - new (&concreteNode->key) Key(akey); - new (&concreteNode->value) T(avalue); + QT_TRY { + Node *concreteNode = concrete(abstractNode); + new (&concreteNode->key) Key(akey); + QT_TRY { + new (&concreteNode->value) T(avalue); + } QT_CATCH(...) { + concreteNode->key.~Key(); + QT_RETHROW; + } + } QT_CATCH(...) { + adt->node_delete(aupdate, payload(), abstractNode); + QT_RETHROW; + } + + // clean up the update array for further insertions + /* + for (int i = 0; i <= d->topLevel; ++i) { + if ( aupdate[i]==reinterpret_cast<QMapData::Node *>(adt) || aupdate[i]->forward[i] != abstractNode) + break; + aupdate[i] = abstractNode; + } +*/ + return abstractNode; } @@ -704,8 +724,13 @@ Q_OUTOFLINE_TEMPLATE void QMap<Key, T>::detach_helper() QMapData::Node *cur = e->forward[0]; update[0] = x.e; while (cur != e) { - Node *concreteNode = concrete(cur); - node_create(x.d, update, concreteNode->key, concreteNode->value); + QT_TRY { + Node *concreteNode = concrete(cur); + node_create(x.d, update, concreteNode->key, concreteNode->value); + } QT_CATCH(...) { + freeData(x.d); + QT_RETHROW; + } cur = cur->forward[0]; } x.d->insertInOrder = false; diff --git a/src/corelib/tools/qpodlist_p.h b/src/corelib/tools/qpodlist_p.h index 9708f8d..9e6d19b 100644 --- a/src/corelib/tools/qpodlist_p.h +++ b/src/corelib/tools/qpodlist_p.h @@ -53,9 +53,7 @@ // We mean it. // -#include <QtCore/qcontainerfwd.h> -#include <QtCore/qglobal.h> -#include <new> +#include <QtCore/qvarlengtharray.h> QT_BEGIN_HEADER @@ -63,87 +61,29 @@ QT_BEGIN_NAMESPACE QT_MODULE(Core) -template<class T, int Prealloc> -class QPodList +template <typename T, int Prealloc> +class QPodList : public QVarLengthArray<T, Prealloc> { + using QVarLengthArray<T, Prealloc>::s; + using QVarLengthArray<T, Prealloc>::a; + using QVarLengthArray<T, Prealloc>::ptr; + using QVarLengthArray<T, Prealloc>::realloc; public: - inline explicit QPodList(int size = 0); + inline explicit QPodList(int size = 0) + : QVarLengthArray<T, Prealloc>(size) + {} - inline QPodList(const QPodList<T, Prealloc> &other) - : a(Prealloc), s(0), ptr(reinterpret_cast<T *>(array)) + inline void insert(int idx, const T &t) { - append(other.constData(), other.size()); - } - - inline ~QPodList() { - if (ptr != reinterpret_cast<T *>(array)) - qFree(ptr); - } - inline QPodList<T, Prealloc> &operator=(const QPodList<T, Prealloc> &other) - { - if (this != &other) { - clear(); - append(other.constData(), other.size()); - } - return *this; - } - - inline int size() const { return s; } - inline int count() const { return s; } - inline bool isEmpty() const { return (s == 0); } - inline void resize(int size); - inline void clear() { resize(0); } - - inline int capacity() const { return a; } - inline void reserve(int size); - - inline T &operator[](int idx) { - Q_ASSERT(idx >= 0 && idx < s); - return ptr[idx]; - } - inline const T &operator[](int idx) const { - Q_ASSERT(idx >= 0 && idx < s); - return ptr[idx]; - } - - inline const T &at(int idx) const { - Q_ASSERT(idx >= 0 && idx < s); - return ptr[idx]; - } - - inline const T &first() const { - return at(0); - } - - inline T& append() { - const int idx = s++; - if (s == a) - realloc(s, s<<1); - return ptr[idx]; - } - inline void append(const T &t) { - append() = t; - } - - inline T& insert(int idx) { - Q_ASSERT(idx >= 0 && idx <= s); const int sz = s++; if (s == a) - realloc(s, s<<1); + realloc(s, s << 1); ::memmove(ptr + idx + 1, ptr + idx, (sz - idx) * sizeof(T)); - return ptr[idx]; - } - inline void insert(int idx, const T &t) { - insert(idx) = t; + ptr[idx] = t; } - inline void removeAt(int idx) { - Q_ASSERT(idx >= 0 && idx < s); - ::memmove(ptr + idx, ptr + idx + 1, (s - idx - 1) * sizeof(T)); - --s; - } - - inline void removeAll(const T &t) { + inline void removeAll(const T &t) + { int i = 0; for (int j = 0; j < s; ++j) { if (ptr[j] != t) @@ -152,110 +92,22 @@ public: s = i; } - inline int indexOf(const T &t, int from = 0) const { - if (from < 0) - from = qMax(from + s, 0); - if (from < s) { - const T *n = ptr + from - 1; - const T *e = ptr + s; - while (++n != e) - if (*n == t) - return n - ptr; - } - return -1; - } - - inline bool contains(const T &t) const { - return indexOf(t) >= 0; + inline void removeAt(int idx) + { + Q_ASSERT(idx >= 0 && idx < s); + ::memmove(ptr + idx, ptr + idx + 1, (s - idx - 1) * sizeof(T)); + --s; } - inline T takeFirst() { + inline T takeFirst() + { Q_ASSERT(s > 0); T tmp = ptr[0]; removeAt(0); return tmp; } - - inline T *data() { return ptr; } - inline const T *data() const { return ptr; } - inline const T * constData() const { return ptr; } - -private: - void append(const T *buf, int size); - void realloc(int size, int alloc); - - int a; - int s; - T *ptr; - union { - // ### Qt 5: Use 'Prealloc * sizeof(T)' as array size - char array[sizeof(qint64) * (((Prealloc * sizeof(T)) / sizeof(qint64)) + 1)]; - qint64 q_for_alignment_1; - double q_for_alignment_2; - }; }; -template <class T, int Prealloc> -Q_INLINE_TEMPLATE QPodList<T, Prealloc>::QPodList(int asize) - : s(asize) { - if (s > Prealloc) { - ptr = reinterpret_cast<T *>(qMalloc(s * sizeof(T))); - a = s; - } else { - ptr = reinterpret_cast<T *>(array); - a = Prealloc; - } -} - -template <class T, int Prealloc> -Q_INLINE_TEMPLATE void QPodList<T, Prealloc>::resize(int asize) -{ realloc(asize, qMax(asize, a)); } - -template <class T, int Prealloc> -Q_INLINE_TEMPLATE void QPodList<T, Prealloc>::reserve(int asize) -{ if (asize > a) realloc(s, asize); } - -template <class T, int Prealloc> -Q_OUTOFLINE_TEMPLATE void QPodList<T, Prealloc>::append(const T *abuf, int asize) -{ - Q_ASSERT(abuf); - if (asize <= 0) - return; - - const int idx = s; - const int news = s + asize; - if (news >= a) - realloc(news, news<<1); - else - s = news; - - qMemCopy(&ptr[idx], abuf, asize * sizeof(T)); -} - -template <class T, int Prealloc> -Q_OUTOFLINE_TEMPLATE void QPodList<T, Prealloc>::realloc(int asize, int aalloc) -{ - Q_ASSERT(aalloc >= asize); - T *oldPtr = ptr; - int osize = s; - s = asize; - - if (aalloc != a) { - ptr = reinterpret_cast<T *>(qMalloc(aalloc * sizeof(T))); - if (ptr) { - a = aalloc; - qMemCopy(ptr, oldPtr, osize * sizeof(T)); - } else { - ptr = oldPtr; - s = 0; - asize = 0; - } - } - - if (oldPtr != reinterpret_cast<T *>(array) && oldPtr != ptr) - qFree(oldPtr); -} - QT_END_NAMESPACE QT_END_HEADER diff --git a/src/corelib/tools/qregexp.cpp b/src/corelib/tools/qregexp.cpp index e1c3921..f357956 100644 --- a/src/corelib/tools/qregexp.cpp +++ b/src/corelib/tools/qregexp.cpp @@ -1297,14 +1297,20 @@ void QRegExpMatchState::prepareForMatch(QRegExpEngine *eng) int ns = eng->s.size(); // number of states int ncap = eng->ncap; #ifndef QT_NO_REGEXP_OPTIM - slideTabSize = qMax(eng->minl + 1, 16); + int newSlideTabSize = qMax(eng->minl + 1, 16); #else - slideTabSize = 0; + int newSlideTabSize = 0; #endif int numCaptures = eng->numCaptures(); - capturedSize = 2 + 2 * numCaptures; - bigArray = (int *)realloc(bigArray, ((3 + 4 * ncap) * ns + 4 * ncap + slideTabSize + capturedSize)*sizeof(int)); + int newCapturedSize = 2 + 2 * numCaptures; + bigArray = (int *)realloc(bigArray, ((3 + 4 * ncap) * ns + 4 * ncap + newSlideTabSize + newCapturedSize)*sizeof(int)); + Q_CHECK_PTR(bigArray); + // set all internal variables only _after_ bigArray is realloc'ed + // to prevent a broken regexp in oom case + + slideTabSize = newSlideTabSize; + capturedSize = newCapturedSize; inNextStack = bigArray; memset(inNextStack, -1, ns * sizeof(int)); curStack = inNextStack + ns; @@ -3281,10 +3287,15 @@ static void derefEngine(QRegExpEngine *eng, const QRegExpEngineKey &key) #if !defined(QT_NO_REGEXP_OPTIM) if (globalEngineCache()) { QMutexLocker locker(mutex()); - globalEngineCache()->insert(key, eng, 4 + key.pattern.length() / 4); - } - else + QT_TRY { + globalEngineCache()->insert(key, eng, 4 + key.pattern.length() / 4); + } QT_CATCH(const std::bad_alloc &) { + // in case of an exception (e.g. oom), just delete the engine + delete eng; + } + } else { delete eng; + } #else Q_UNUSED(key); delete eng; diff --git a/src/corelib/tools/qringbuffer_p.h b/src/corelib/tools/qringbuffer_p.h index 3a0901d..ac33353 100644 --- a/src/corelib/tools/qringbuffer_p.h +++ b/src/corelib/tools/qringbuffer_p.h @@ -199,9 +199,8 @@ public: inline void clear() { if(!buffers.isEmpty()) { - QByteArray tmp = buffers[0]; - buffers.clear(); - buffers << tmp; + // remove all but the first + buffers.erase(buffers.begin() + 1, buffers.end()); if (buffers.at(0).size() != basicBlockSize) buffers[0].resize(basicBlockSize); } diff --git a/src/corelib/tools/qscopedpointer.cpp b/src/corelib/tools/qscopedpointer.cpp new file mode 100644 index 0000000..8150a18 --- /dev/null +++ b/src/corelib/tools/qscopedpointer.cpp @@ -0,0 +1,132 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the $MODULE$ of the Qt Toolkit. +** +** $TROLLTECH_DUAL_LICENSE$ +** +****************************************************************************/ + +/*! + \class QScopedPointer + \brief The QScopedPointer class stores a pointer to a dynamically allocated object, and deletes it upon destruction. + \since 4.6 + \reentrant + \ingroup misc + + Managing heap allocated objects manually is hard and error prone, with the + common result that code leaks memory and is hard to maintain. + QScopedPointer is a small utility class that heavily simplifies this by + assigning stack-based memory ownership to heap allocations, more generally + called resource acquisition is initialization(RAII). + + QScopedPointer guarantees that the object pointed to will get deleted when + the current scope dissapears, and it also has no way of releasing + ownership, hence clearly communicating the lifetime and ownership of the + object. These guarantees are convenient when reading the code. + + Consider this function which does heap allocations, and have various exit points: + + \snippet doc/src/snippets/code/src_corelib_tools_qscopedpointer.cpp 0 + + It's encumbered by the manual delete calls. With QScopedPointer, the code + can be simplified to: + + \snippet doc/src/snippets/code/src_corelib_tools_qscopedpointer.cpp 1 + + The code the compiler generates for QScopedPointer is the same as when + writing it manually. Code that makes use of \a delete are candidates for + QScopedPointer usage(and if not, possibly another type of smart pointer + such as QSharedPointer). QScopedPointer intentionally has no copy + constructor or assignment operator, such that ownership and lifetime is + clearly communicated. + + The const qualification on a regular C++ pointer can also be expressed with + a QScopedPointer: + + \snippet doc/src/snippets/code/src_corelib_tools_qscopedpointer.cpp 2 + + \note QScopedPointer does not work with arrays. + + \sa QSharedPointer +*/ + +/*! + \fn QScopedPointer::QScopedPointer(T *p = 0) + + Constructs this QScopedPointer instance and sets its pointer to \a p. +*/ + +/*! + \fn QScopedPointer::~QScopedPointer() + + Destroys this QScopedPointer object. Delete the object its pointer points + to. +*/ + +/*! + \fn T *QScopedPointer::data() const + + Returns the value of the pointer referenced by this object. QScopedPointer + still owns the object pointed to. +*/ + +/*! + \fn T &QScopedPointer::operator*() const + + Provides access to the scoped pointer's object. + + If the contained pointer is \c null, behavior is undefined. + \sa isNull() +*/ + +/*! + \fn T *QScopedPointer::operator->() const + + Provides access to the scoped pointer's object. + + If the contained pointer is \c null, behavior is undefined. + + \sa isNull() +*/ + +/*! + \fn QScopedPointer::operator bool() const + + Returns \c true if this object is not \c null. This function is suitable + for use in \tt if-constructs, like: + + \snippet doc/src/snippets/code/src_corelib_tools_qscopedpointer.cpp 3 + + \sa isNull() +*/ + +/*! + \fn bool QScopedPointer::isNull() const + + Returns \c true if this object is holding a pointer that is \c null. +*/ + +/*! + \fn void QScopedPointer::reset(T *other = 0) + + Deletes the existing object its pointing to if any, and sets its pointer to + \a other. QScopedPointer now owns \a other and will delete it in its + destructor. + + If \a other is equal to the value returned by data(), behavior is + undefined. +*/ + +/*! + \fn T *QScopedPointer::take() + + Returns the value of the pointer referenced by this object. The pointer of this + QScopedPointer object will be reset to \c null. +*/ + +QT_END_NAMESPACE + +#endif diff --git a/src/corelib/tools/qscopedpointer.h b/src/corelib/tools/qscopedpointer.h new file mode 100644 index 0000000..fc8f9e2 --- /dev/null +++ b/src/corelib/tools/qscopedpointer.h @@ -0,0 +1,199 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSCOPEDPOINTER_H +#define QSCOPEDPOINTER_H + +#include <QtCore/qglobal.h> + +QT_BEGIN_HEADER +QT_BEGIN_NAMESPACE +QT_MODULE(Core) + +template <typename T> +class QScopedPointer +{ +public: + explicit inline QScopedPointer(T *p = 0) : d(p) + { + } + + inline ~QScopedPointer() + { + delete d; + } + + inline T &operator*() const + { + return *d; + } + + inline T *operator->() const + { + return d; + } + + inline bool operator==(const QScopedPointer<T> &other) const + { + return d == other.d; + } + + inline bool operator!=(const QScopedPointer<T> &other) const + { + return d != other.d; + } + + inline operator bool() const + { + return d; + } + + inline T *data() const + { + return d; + } + + inline bool isNull() const + { + return !d; + } + + inline void reset(T *other = 0) + { + T *oldD = d; + d = other; + delete oldD; + } + + inline T *take() + { + T *oldD = d; + d = 0; + return oldD; + } + +protected: + T *d; + +private: + Q_DISABLE_COPY(QScopedPointer) +}; + +/* internal class - allows special handling for resetting and cleaning the pointer */ +template <typename T, typename CustomHandler> +class QScopedCustomPointer : public QScopedPointer<T> +{ +public: + inline QScopedCustomPointer(T *p = 0) + : QScopedPointer<T>(p) + { + } + + inline ~QScopedCustomPointer() + { + T *oldD = this->d; + this->d = 0; + CustomHandler::cleanup(oldD); + } + + inline void reset(T *other = 0) + { + CustomHandler::reset(this->d, other); + } + + inline T *&data_ptr() + { + return this->d; + } +}; + +/* Internal helper class - a handler for QShared* classes, to be used in QScopedCustomPointer */ +template <typename T> +class QScopedSharedPointerHandler +{ +public: + static inline void cleanup(T *d) + { + if (d && !d->ref.deref()) + delete d; + } + + static inline void reset(T *&d, T *other) + { + T *oldD = d; + d = other; + cleanup(oldD); + } +}; + +/* Internal. This should really have been a typedef, but you can't have a templated typedef :) + This class is basically a scoped pointer pointing to a ref-counted object + */ +template <typename T> +class QScopedSharedPointer : public QScopedCustomPointer<T, QScopedSharedPointerHandler<T> > +{ +public: + inline QScopedSharedPointer(T *p = 0) + : QScopedCustomPointer<T, QScopedSharedPointerHandler<T> >(p) + { + } + + inline void detach() + { + qAtomicDetach(this->d); + } + + inline void assign(T *other) + { + if (this->d == other) + return; + if (other) + other->ref.ref(); + T *oldD = this->d; + this->d = other; + QScopedSharedPointerHandler<T>::cleanup(oldD); + } +}; + +QT_END_NAMESPACE +QT_END_HEADER + +#endif // QSCOPEDPOINTER_H diff --git a/src/corelib/tools/qshareddata.cpp b/src/corelib/tools/qshareddata.cpp index 2b879ea..03bc964 100644 --- a/src/corelib/tools/qshareddata.cpp +++ b/src/corelib/tools/qshareddata.cpp @@ -231,7 +231,7 @@ QT_BEGIN_NAMESPACE In the member function documentation, \e{d pointer} always refers to the internal pointer to the shared data object. - \sa QSharedData, QExplicitlySharedDataPointer + \sa QSharedData, QExplicitlySharedDataPointer, QScopedPointer, QSharedPointer */ /*! \fn T& QSharedDataPointer::operator*() diff --git a/src/corelib/tools/qsharedpointer.cpp b/src/corelib/tools/qsharedpointer.cpp index c3a989e..dee06f0 100644 --- a/src/corelib/tools/qsharedpointer.cpp +++ b/src/corelib/tools/qsharedpointer.cpp @@ -102,13 +102,18 @@ except that it only detaches if QExplicitlySharedDataPointer::detach() is explicitly called. + QScopedPointer simply holds a pointer to a heap allocated object and + deletes it in its destructor. This class is useful when an object needs to + be heap allocated and deleted, but no more. QScopedPointer is lightweight, + it makes no use of additional structure or reference counting. + Finally, QPointer holds a pointer to a QObject-derived object, but it does so weakly. QPointer is similar, in that behaviour, to QWeakPointer: it does not allow you to prevent the object from being destroyed. All you can do is query whether it has been destroyed or not. - \sa QSharedDataPointer, QWeakPointer + \sa QSharedDataPointer, QWeakPointer, QScopedPointer */ /*! @@ -130,7 +135,7 @@ must first create a QSharedPointer object and verify if the pointer is null or not. - \sa QSharedPointer + \sa QSharedPointer, QScopedPointer */ /*! diff --git a/src/corelib/tools/qstring.cpp b/src/corelib/tools/qstring.cpp index c3649e3..e61a568 100644 --- a/src/corelib/tools/qstring.cpp +++ b/src/corelib/tools/qstring.cpp @@ -846,6 +846,7 @@ QString::QString(const QChar *unicode, int size) d->ref.ref(); } else { d = (Data*) qMalloc(sizeof(Data)+size*sizeof(QChar)); + Q_CHECK_PTR(d); d->ref = 1; d->alloc = d->size = size; d->clean = d->asciiCache = d->simpletext = d->righttoleft = d->capacity = 0; @@ -869,6 +870,7 @@ QString::QString(int size, QChar ch) d->ref.ref(); } else { d = (Data*) qMalloc(sizeof(Data)+size*sizeof(QChar)); + Q_CHECK_PTR(d); d->ref = 1; d->alloc = d->size = size; d->clean = d->asciiCache = d->simpletext = d->righttoleft = d->capacity = 0; @@ -894,7 +896,9 @@ QString::QString(int size, QChar ch) */ QString::QString(QChar ch) { - d = (Data *)qMalloc(sizeof(Data) + sizeof(QChar)); + void *buf = qMalloc(sizeof(Data) + sizeof(QChar)); + Q_CHECK_PTR(buf); + d = reinterpret_cast<Data *>(buf); d->ref = 1; d->alloc = d->size = 1; d->clean = d->asciiCache = d->simpletext = d->righttoleft = d->capacity = 0; @@ -1064,8 +1068,7 @@ void QString::realloc(int alloc) { if (d->ref != 1 || d->data != d->array) { Data *x = static_cast<Data *>(qMalloc(sizeof(Data) + alloc * sizeof(QChar))); - if (!x) - return; + Q_CHECK_PTR(x); x->size = qMin(alloc, d->size); ::memcpy(x->array, d->data, x->size * sizeof(QChar)); x->array[x->size] = 0; @@ -1088,8 +1091,7 @@ void QString::realloc(int alloc) } #endif Data *x = static_cast<Data *>(qRealloc(d, sizeof(Data) + alloc * sizeof(QChar))); - if (!x) - return; + Q_CHECK_PTR(x); x->alloc = alloc; x->data = x->array; d = x; @@ -1246,6 +1248,7 @@ QString& QString::insert(int i, const QChar *unicode, int size) if (s >= d->data && s < d->data + d->alloc) { // Part of me - take a copy ushort *tmp = static_cast<ushort *>(qMalloc(size * sizeof(QChar))); + Q_CHECK_PTR(tmp); memcpy(tmp, s, size * sizeof(QChar)); insert(i, reinterpret_cast<const QChar *>(tmp), size); qFree(tmp); @@ -1600,51 +1603,69 @@ QString &QString::replace(const QString &before, const QString &after, Qt::CaseS */ void QString::replace_helper(uint *indices, int nIndices, int blen, const QChar *after, int alen) { - if (blen == alen) { - detach(); - for (int i = 0; i < nIndices; ++i) - memcpy(d->data + indices[i], after, alen * sizeof(QChar)); - } else if (alen < blen) { + // copy *after in case it lies inside our own d->data area + // (which we could possibly invalidate via a realloc or corrupt via memcpy operations.) + QChar *afterBuffer = const_cast<QChar *>(after); + if (after >= reinterpret_cast<QChar *>(d->data) && after < reinterpret_cast<QChar *>(d->data) + d->size) { + afterBuffer = static_cast<QChar *>(qMalloc(alen*sizeof(QChar))); + Q_CHECK_PTR(afterBuffer); + ::memcpy(afterBuffer, after, alen*sizeof(QChar)); + } + + QT_TRY { detach(); - uint to = indices[0]; - if (alen) - memcpy(d->data+to, after, alen*sizeof(QChar)); - to += alen; - uint movestart = indices[0] + blen; - for (int i = 1; i < nIndices; ++i) { - int msize = indices[i] - movestart; - if (msize > 0) { - memmove(d->data + to, d->data + movestart, msize * sizeof(QChar)); - to += msize; + if (blen == alen) { + // replace in place + for (int i = 0; i < nIndices; ++i) + memcpy(d->data + indices[i], afterBuffer, alen * sizeof(QChar)); + } else if (alen < blen) { + // replace from front + uint to = indices[0]; + if (alen) + memcpy(d->data+to, after, alen*sizeof(QChar)); + to += alen; + uint movestart = indices[0] + blen; + for (int i = 1; i < nIndices; ++i) { + int msize = indices[i] - movestart; + if (msize > 0) { + memmove(d->data + to, d->data + movestart, msize * sizeof(QChar)); + to += msize; + } + if (alen) { + memcpy(d->data + to, afterBuffer, alen*sizeof(QChar)); + to += alen; + } + movestart = indices[i] + blen; } - if (alen) { - memcpy(d->data + to, after, alen*sizeof(QChar)); - to += alen; + int msize = d->size - movestart; + if (msize > 0) + memmove(d->data + to, d->data + movestart, msize * sizeof(QChar)); + resize(d->size - nIndices*(blen-alen)); + } else { + // replace from back + int adjust = nIndices*(alen-blen); + int newLen = d->size + adjust; + int moveend = d->size; + resize(newLen); + + while (nIndices) { + --nIndices; + int movestart = indices[nIndices] + blen; + int insertstart = indices[nIndices] + nIndices*(alen-blen); + int moveto = insertstart + alen; + memmove(d->data + moveto, d->data + movestart, + (moveend - movestart)*sizeof(QChar)); + memcpy(d->data + insertstart, afterBuffer, alen*sizeof(QChar)); + moveend = movestart-blen; } - movestart = indices[i] + blen; - } - int msize = d->size - movestart; - if (msize > 0) - memmove(d->data + to, d->data + movestart, msize * sizeof(QChar)); - resize(d->size - nIndices*(blen-alen)); - } else { - // we have a table of replacement positions, use them for fast replacing - int adjust = nIndices*(alen-blen); - int newLen = d->size + adjust; - int moveend = d->size; - resize(newLen); - - while (nIndices) { - --nIndices; - int movestart = indices[nIndices] + blen; - int insertstart = indices[nIndices] + nIndices*(alen-blen); - int moveto = insertstart + alen; - memmove(d->data + moveto, d->data + movestart, - (moveend - movestart)*sizeof(QChar)); - memcpy(d->data + insertstart, after, alen*sizeof(QChar)); - moveend = movestart-blen; } + } QT_CATCH(const std::bad_alloc &) { + if (afterBuffer != after) + qFree(afterBuffer); + QT_RETHROW; } + if (afterBuffer != after) + qFree(afterBuffer); } /*! @@ -1672,21 +1693,7 @@ QString &QString::replace(const QChar *before, int blen, if (alen == 0 && blen == 0) return *this; - // protect against before or after being part of this - const QChar *a = after; - const QChar *b = before; - if (after >= (const QChar *)d->data && after < (const QChar *)d->data + d->size) { - QChar *copy = (QChar *)malloc(alen*sizeof(QChar)); - memcpy(copy, after, alen*sizeof(QChar)); - a = copy; - } - if (before >= (const QChar *)d->data && before < (const QChar *)d->data + d->size) { - QChar *copy = (QChar *)malloc(blen*sizeof(QChar)); - memcpy(copy, before, blen*sizeof(QChar)); - b = copy; - } - - QStringMatcher matcher(b, blen, cs); + QStringMatcher matcher(before, blen, cs); int index = 0; while (1) { @@ -1705,7 +1712,7 @@ QString &QString::replace(const QChar *before, int blen, if (!pos) break; - replace_helper(indices, pos, blen, a, alen); + replace_helper(indices, pos, blen, after, alen); if (index == -1) break; @@ -1713,11 +1720,6 @@ QString &QString::replace(const QChar *before, int blen, index += pos*(alen-blen); } - if (a != after) - ::free((QChar *)a); - if (b != before) - ::free((QChar *)b); - return *this; } @@ -3450,6 +3452,7 @@ QString::Data *QString::fromLatin1_helper(const char *str, int size) if (size < 0) size = qstrlen(str); d = static_cast<Data *>(qMalloc(sizeof(Data) + size * sizeof(QChar))); + Q_CHECK_PTR(d); d->ref = 1; d->alloc = d->size = size; d->clean = d->asciiCache = d->simpletext = d->righttoleft = d->capacity = 0; @@ -3457,7 +3460,7 @@ QString::Data *QString::fromLatin1_helper(const char *str, int size) ushort *i = d->data; d->array[size] = '\0'; while (size--) - *i++ = (uchar)*str++; + *i++ = (uchar)*str++; } return d; } @@ -6867,6 +6870,7 @@ void QString::updateProperties() const QString QString::fromRawData(const QChar *unicode, int size) { Data *x = static_cast<Data *>(qMalloc(sizeof(Data))); + Q_CHECK_PTR(x); if (unicode) { x->data = (ushort *)unicode; } else { diff --git a/src/corelib/tools/qtextboundaryfinder.cpp b/src/corelib/tools/qtextboundaryfinder.cpp index 8a8e95b..5ca6a11 100644 --- a/src/corelib/tools/qtextboundaryfinder.cpp +++ b/src/corelib/tools/qtextboundaryfinder.cpp @@ -176,6 +176,7 @@ QTextBoundaryFinder::QTextBoundaryFinder(const QTextBoundaryFinder &other) , freePrivate(true) { d = (QTextBoundaryFinderPrivate *) malloc(length*sizeof(HB_CharAttributes)); + Q_CHECK_PTR(d); memcpy(d, other.d, length*sizeof(HB_CharAttributes)); } @@ -193,8 +194,11 @@ QTextBoundaryFinder &QTextBoundaryFinder::operator=(const QTextBoundaryFinder &o length = other.length; pos = other.pos; freePrivate = true; - - d = (QTextBoundaryFinderPrivate *) realloc(d, length*sizeof(HB_CharAttributes)); + + QTextBoundaryFinderPrivate *newD = (QTextBoundaryFinderPrivate *) + realloc(d, length*sizeof(HB_CharAttributes)); + Q_CHECK_PTR(newD); + d = newD; memcpy(d, other.d, length*sizeof(HB_CharAttributes)); return *this; @@ -221,6 +225,7 @@ QTextBoundaryFinder::QTextBoundaryFinder(BoundaryType type, const QString &strin , freePrivate(true) { d = (QTextBoundaryFinderPrivate *) malloc(length*sizeof(HB_CharAttributes)); + Q_CHECK_PTR(d); init(t, chars, length, d->attributes); } @@ -248,6 +253,7 @@ QTextBoundaryFinder::QTextBoundaryFinder(BoundaryType type, const QChar *chars, freePrivate = false; } else { d = (QTextBoundaryFinderPrivate *) malloc(length*sizeof(HB_CharAttributes)); + Q_CHECK_PTR(d); freePrivate = true; } init(t, chars, length, d->attributes); diff --git a/src/corelib/tools/qvarlengtharray.h b/src/corelib/tools/qvarlengtharray.h index e2f60ed..b41240e 100644 --- a/src/corelib/tools/qvarlengtharray.h +++ b/src/corelib/tools/qvarlengtharray.h @@ -52,6 +52,9 @@ QT_BEGIN_NAMESPACE QT_MODULE(Core) +template<class T, int Prealloc> +class QPodList; + // Prealloc = 256 by default, specified in qcontainerfwd.h template<class T, int Prealloc> class QVarLengthArray @@ -122,6 +125,7 @@ public: inline const T * constData() const { return ptr; } private: + friend class QPodList<T, Prealloc>; void realloc(int size, int alloc); int a; @@ -140,6 +144,7 @@ Q_INLINE_TEMPLATE QVarLengthArray<T, Prealloc>::QVarLengthArray(int asize) : s(asize) { if (s > Prealloc) { ptr = reinterpret_cast<T *>(qMalloc(s * sizeof(T))); + Q_CHECK_PTR(ptr); a = s; } else { ptr = reinterpret_cast<T *>(array); @@ -161,25 +166,24 @@ Q_INLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::reserve(int asize) { if (asize > a) realloc(s, asize); } template <class T, int Prealloc> -Q_OUTOFLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::append(const T *abuf, int asize) +Q_OUTOFLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::append(const T *abuf, int increment) { Q_ASSERT(abuf); - if (asize <= 0) + if (increment <= 0) return; - const int idx = s; - const int news = s + asize; - if (news >= a) - realloc(s, qMax(s<<1, news)); - s = news; + const int asize = s + increment; + + if (asize >= a) + realloc(s, qMax(s*2, asize)); if (QTypeInfo<T>::isComplex) { - T *i = ptr + idx; - T *j = i + asize; - while (i < j) - new (i++) T(*abuf++); + // call constructor for new objects (which can throw) + while (s < asize) + new (ptr+(s++)) T(*abuf++); } else { - qMemCopy(&ptr[idx], abuf, asize * sizeof(T)); + qMemCopy(&ptr[s], abuf, increment * sizeof(T)); + s = asize; } } @@ -189,46 +193,58 @@ Q_OUTOFLINE_TEMPLATE void QVarLengthArray<T, Prealloc>::realloc(int asize, int a Q_ASSERT(aalloc >= asize); T *oldPtr = ptr; int osize = s; - s = asize; + // s = asize; if (aalloc != a) { ptr = reinterpret_cast<T *>(qMalloc(aalloc * sizeof(T))); + Q_CHECK_PTR(ptr); if (ptr) { + s = 0; a = aalloc; if (QTypeInfo<T>::isStatic) { - T *i = ptr + osize; - T *j = oldPtr + osize; - while (i != ptr) { - new (--i) T(*--j); - j->~T(); + QT_TRY { + while (s < asize) { + new (ptr+s) T(*(oldPtr+s)); + (oldPtr+s)->~T(); + s++; + } + } QT_CATCH(...) { + // clean up all the old objects and then free the old ptr + int sClean = s; + while (sClean < osize) + (oldPtr+(sClean++))->~T(); + if (oldPtr != reinterpret_cast<T *>(array) && oldPtr != ptr) + qFree(oldPtr); + QT_RETHROW; } } else { - qMemCopy(ptr, oldPtr, osize * sizeof(T)); + qMemCopy(ptr, oldPtr, qMin(asize, osize) * sizeof(T)); + s = asize; } } else { ptr = oldPtr; - s = 0; - asize = 0; + return; } } if (QTypeInfo<T>::isComplex) { - if (asize < osize) { - T *i = oldPtr + osize; - T *j = oldPtr + asize; - while (i-- != j) - i->~T(); - } else { - T *i = ptr + asize; - T *j = ptr + osize; - while (i != j) - new (--i) T; - } + while (osize > asize) + (oldPtr+(--osize))->~T(); + if( oldPtr == ptr ) + s = osize; } if (oldPtr != reinterpret_cast<T *>(array) && oldPtr != ptr) qFree(oldPtr); + + if (QTypeInfo<T>::isComplex) { + // call default constructor for new objects (which can throw) + while (s < asize) + new (ptr+(s++)) T; + } else { + s = asize; + } } QT_END_NAMESPACE diff --git a/src/corelib/tools/qvector.cpp b/src/corelib/tools/qvector.cpp index 6b26b2e..04e9ace 100644 --- a/src/corelib/tools/qvector.cpp +++ b/src/corelib/tools/qvector.cpp @@ -50,6 +50,7 @@ QVectorData QVectorData::shared_null = { Q_BASIC_ATOMIC_INITIALIZER(1), 0, 0, tr QVectorData *QVectorData::malloc(int sizeofTypedData, int size, int sizeofT, QVectorData *init) { QVectorData* p = (QVectorData *)qMalloc(sizeofTypedData + (size - 1) * sizeofT); + Q_CHECK_PTR(p); ::memcpy(p, init, sizeofTypedData + (qMin(size, init->alloc) - 1) * sizeofT); return p; } diff --git a/src/corelib/tools/qvector.h b/src/corelib/tools/qvector.h index 1f047b8..610b8e7 100644 --- a/src/corelib/tools/qvector.h +++ b/src/corelib/tools/qvector.h @@ -77,6 +77,7 @@ struct Q_CORE_EXPORT QVectorData static QVectorData shared_null; // ### Qt 5: rename to 'allocate()'. The current name causes problems for // some debugges when the QVector is member of a class within an unnamed namespace. + // ### Qt 5: can be removed completely. (Ralf) static QVectorData *malloc(int sizeofTypedData, int size, int sizeofT, QVectorData *init); static int grow(int sizeofTypedData, int size, int sizeofT, bool excessive); }; @@ -379,7 +380,9 @@ QVector<T> &QVector<T>::operator=(const QVector<T> &v) template <typename T> inline QVectorData *QVector<T>::malloc(int aalloc) { - return static_cast<QVectorData *>(qMalloc(sizeOfTypedData() + (aalloc - 1) * sizeof(T))); + QVectorData *data = static_cast<QVectorData *>(qMalloc(sizeOfTypedData() + (aalloc - 1) * sizeof(T))); + Q_CHECK_PTR(data); + return data; } template <typename T> @@ -428,74 +431,79 @@ void QVector<T>::free(Data *x) template <typename T> void QVector<T>::realloc(int asize, int aalloc) { - T *j, *i, *b; + T *pOld; + T *pNew; union { QVectorData *p; Data *d; } x; x.d = d; - if (QTypeInfo<T>::isComplex && aalloc == d->alloc && d->ref == 1) { - // pure resize - i = d->array + d->size; - j = d->array + asize; - if (i > j) { - while (i-- != j) - i->~T(); - } else { - while (j-- != i) - new (j) T; + if (QTypeInfo<T>::isComplex && asize < d->size && d->ref == 1 ) { + // call the destructor on all objects that need to be + // destroyed when shrinking + pOld = d->array + d->size; + pNew = d->array + asize; + while (asize < d->size) { + (--pOld)->~T(); + d->size--; } - d->size = asize; - return; } if (aalloc != d->alloc || d->ref != 1) { // (re)allocate memory if (QTypeInfo<T>::isStatic) { x.p = malloc(aalloc); + Q_CHECK_PTR(x.p); + x.d->size = 0; } else if (d->ref != 1) { - x.p = QVectorData::malloc(sizeOfTypedData(), aalloc, sizeof(T), p); - } else { + x.p = malloc(aalloc); + Q_CHECK_PTR(x.p); if (QTypeInfo<T>::isComplex) { - // call the destructor on all objects that need to be - // destroyed when shrinking - if (asize < d->size) { - j = d->array + asize; - i = d->array + d->size; - while (i-- != j) - i->~T(); - i = d->array + asize; - } + x.d->size = 0; + } else { + ::memcpy(x.p, p, sizeOfTypedData() + (qMin(aalloc, p->alloc) - 1) * sizeof(T)); + x.d->size = d->size; + } + } else { + QT_TRY { + QVectorData *mem = static_cast<QVectorData *>(qRealloc(p, sizeOfTypedData() + (aalloc - 1) * sizeof(T))); + Q_CHECK_PTR(mem); + x.p = p = mem; + x.d->size = d->size; + } QT_CATCH (const std::bad_alloc &) { + if (aalloc > d->alloc) // ignore the error in case we are just shrinking. + QT_RETHROW; } - x.p = p = static_cast<QVectorData *>(qRealloc(p, sizeOfTypedData() + (aalloc - 1) * sizeof(T))); } x.d->ref = 1; + x.d->alloc = aalloc; x.d->sharable = true; x.d->capacity = d->capacity; - } + if (QTypeInfo<T>::isComplex) { - if (asize < d->size) { - j = d->array + asize; - i = x.d->array + asize; - } else { - // construct all new objects when growing - i = x.d->array + asize; - j = x.d->array + d->size; - while (i != j) - new (--i) T; - j = d->array + d->size; - } - if (i != j) { + QT_TRY { + pOld = d->array + x.d->size; + pNew = x.d->array + x.d->size; // copy objects from the old array into the new array - b = x.d->array; - while (i != b) - new (--i) T(*--j); + while (x.d->size < qMin(asize, d->size)) { + new (pNew++) T(*pOld++); + x.d->size++; + } + // construct all new objects when growing + while (x.d->size < asize) { + new (pNew++) T; + x.d->size++; + } + } QT_CATCH (...) { + free(x.d); + QT_RETHROW; } - } else if (asize > d->size) { + + } else if (asize > x.d->size) { // initialize newly allocated memory to 0 - qMemSet(x.d->array + d->size, 0, (asize - d->size) * sizeof(T)); + qMemSet(x.d->array + x.d->size, 0, (asize - x.d->size) * sizeof(T)); } x.d->size = asize; - x.d->alloc = aalloc; + if (d != x.d) { if (!d->ref.deref()) free(d); diff --git a/src/corelib/tools/tools.pri b/src/corelib/tools/tools.pri index c2381ce..8d27100 100644 --- a/src/corelib/tools/tools.pri +++ b/src/corelib/tools/tools.pri @@ -36,7 +36,8 @@ HEADERS += \ tools/qtimeline.h \ tools/qunicodetables_p.h \ tools/qvarlengtharray.h \ - tools/qvector.h + tools/qvector.h \ + tools/qscopedpointer.h SOURCES += \ diff --git a/src/corelib/xml/qxmlstream.cpp b/src/corelib/xml/qxmlstream.cpp index ff1a01f..6fe6ebf 100644 --- a/src/corelib/xml/qxmlstream.cpp +++ b/src/corelib/xml/qxmlstream.cpp @@ -429,7 +429,6 @@ QXmlStreamReader::~QXmlStreamReader() Q_D(QXmlStreamReader); if (d->deleteDevice) delete d->device; - delete d; } /*! \fn bool QXmlStreamReader::hasError() const @@ -819,7 +818,9 @@ inline void QXmlStreamReaderPrivate::reallocateStack() { stack_size <<= 1; sym_stack = reinterpret_cast<Value*> (qRealloc(sym_stack, stack_size * sizeof(Value))); + Q_CHECK_PTR(sym_stack); state_stack = reinterpret_cast<int*> (qRealloc(state_stack, stack_size * sizeof(int))); + Q_CHECK_PTR(sym_stack); } @@ -3131,8 +3132,6 @@ QXmlStreamWriter::QXmlStreamWriter(QString *string) */ QXmlStreamWriter::~QXmlStreamWriter() { - Q_D(QXmlStreamWriter); - delete d; } diff --git a/src/corelib/xml/qxmlstream.h b/src/corelib/xml/qxmlstream.h index 2ba7972..6903d56 100644 --- a/src/corelib/xml/qxmlstream.h +++ b/src/corelib/xml/qxmlstream.h @@ -48,6 +48,7 @@ #include <QtCore/QString> #include <QtCore/QVector> +#include <QtCore/QScopedPointer> QT_BEGIN_HEADER @@ -392,7 +393,7 @@ public: private: Q_DISABLE_COPY(QXmlStreamReader) Q_DECLARE_PRIVATE(QXmlStreamReader) - QXmlStreamReaderPrivate *d_ptr; + QScopedPointer<QXmlStreamReaderPrivate> d_ptr; }; #endif // QT_NO_XMLSTREAMREADER @@ -465,7 +466,7 @@ public: private: Q_DISABLE_COPY(QXmlStreamWriter) Q_DECLARE_PRIVATE(QXmlStreamWriter) - QXmlStreamWriterPrivate *d_ptr; + QScopedPointer<QXmlStreamWriterPrivate> d_ptr; }; #endif // QT_NO_XMLSTREAMWRITER |