diff options
Diffstat (limited to 'src/corelib')
| -rw-r--r-- | src/corelib/io/io.pri | 5 | ||||
| -rw-r--r-- | src/corelib/io/qfilesystemwatcher.cpp | 10 | ||||
| -rw-r--r-- | src/corelib/io/qfilesystemwatcher_fsevents.cpp | 467 | ||||
| -rw-r--r-- | src/corelib/io/qfilesystemwatcher_fsevents_p.h | 127 | ||||
| -rw-r--r-- | src/corelib/kernel/qeventdispatcher_unix.cpp | 75 | ||||
| -rw-r--r-- | src/corelib/kernel/qeventdispatcher_unix_p.h | 46 |
6 files changed, 686 insertions, 44 deletions
diff --git a/src/corelib/io/io.pri b/src/corelib/io/io.pri index 5033b21..bd41f5e 100644 --- a/src/corelib/io/io.pri +++ b/src/corelib/io/io.pri @@ -65,7 +65,10 @@ win32 { SOURCES += io/qfsfileengine_unix.cpp SOURCES += io/qfsfileengine_iterator_unix.cpp SOURCES += io/qprocess_unix.cpp - mac:SOURCES += io/qsettings_mac.cpp + macx-*: { + HEADERS += io/qfilesystemwatcher_fsevents_p.h + SOURCES += io/qsettings_mac.cpp io/qfilesystemwatcher_fsevents.cpp + } linux-*:{ SOURCES += \ diff --git a/src/corelib/io/qfilesystemwatcher.cpp b/src/corelib/io/qfilesystemwatcher.cpp index b321644..902e240 100644 --- a/src/corelib/io/qfilesystemwatcher.cpp +++ b/src/corelib/io/qfilesystemwatcher.cpp @@ -58,6 +58,9 @@ # include "qfilesystemwatcher_inotify_p.h" # include "qfilesystemwatcher_dnotify_p.h" #elif defined(Q_OS_FREEBSD) || defined(Q_OS_MAC) +# if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) +# include "qfilesystemwatcher_fsevents_p.h" +# endif //MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) # include "qfilesystemwatcher_kqueue_p.h" #endif @@ -243,7 +246,12 @@ QFileSystemWatcherEngine *QFileSystemWatcherPrivate::createNativeEngine() eng = QDnotifyFileSystemWatcherEngine::create(); return eng; #elif defined(Q_OS_FREEBSD) || defined(Q_OS_MAC) - return QKqueueFileSystemWatcherEngine::create(); +# if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5) + if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_5) + return QFSEventsFileSystemWatcherEngine::create(); + else +# endif + return QKqueueFileSystemWatcherEngine::create(); #else return 0; #endif diff --git a/src/corelib/io/qfilesystemwatcher_fsevents.cpp b/src/corelib/io/qfilesystemwatcher_fsevents.cpp new file mode 100644 index 0000000..3e0aee8 --- /dev/null +++ b/src/corelib/io/qfilesystemwatcher_fsevents.cpp @@ -0,0 +1,467 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (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 http://www.qtsoftware.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <qplatformdefs.h> + +#include "qfilesystemwatcher.h" +#include "qfilesystemwatcher_fsevents_p.h" + +#include <qdebug.h> +#include <qfile.h> +#include <qdatetime.h> +#include <qfileinfo.h> +#include <qvarlengtharray.h> + +#include <mach/mach.h> +#include <sys/types.h> +#include <CoreFoundation/CFRunLoop.h> +#include <CoreFoundation/CFUUID.h> +#include <CoreServices/CoreServices.h> +#include <AvailabilityMacros.h> +#include <private/qcore_mac_p.h> + +QT_BEGIN_NAMESPACE + +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 +// Static operator overloading so for the sake of some convieniece. +// They only live in this compilation unit to avoid polluting Qt in general. +static bool operator==(const struct ::timespec &left, const struct ::timespec &right) +{ + return left.tv_sec == right.tv_sec + && left.tv_nsec == right.tv_nsec; +} + +static bool operator==(const struct ::stat64 &left, const struct ::stat64 &right) +{ + return left.st_dev == right.st_dev + && left.st_mode == right.st_mode + && left.st_size == right.st_size + && left.st_ino == right.st_ino + && left.st_uid == right.st_uid + && left.st_gid == right.st_gid + && left.st_mtimespec == right.st_mtimespec + && left.st_ctimespec == right.st_ctimespec + && left.st_flags == right.st_flags; +} + +static bool operator!=(const struct ::stat64 &left, const struct ::stat64 &right) +{ + return !(operator==(left, right)); +} + + +static void addPathToHash(PathHash &pathHash, const QString &key, const QFileInfo &fileInfo, + const QString &path) +{ + PathInfoList &list = pathHash[key]; + list.push_back(PathInfo(path, + fileInfo.absoluteFilePath().normalized(QString::NormalizationForm_D).toUtf8())); + pathHash.insert(key, list); +} + +static void removePathFromHash(PathHash &pathHash, const QString &key, const QString &path) +{ + PathInfoList &list = pathHash[key]; + // We make the assumption that the list contains unique paths + PathInfoList::iterator End = list.end(); + PathInfoList::iterator it = list.begin(); + while (it != End) { + if (it->originalPath == path) { + list.erase(it); + break; + } + ++it; + } + if (list.isEmpty()) + pathHash.remove(key); +} + +static void stopFSStream(FSEventStreamRef stream) +{ + if (stream) { + FSEventStreamStop(stream); + FSEventStreamInvalidate(stream); + } +} + +static QString createFSStreamPath(const QString &absolutePath) +{ + // The path returned has a trailing slash, so ensure that here. + QString string = absolutePath; + string.reserve(string.size() + 1); + string.append(QLatin1Char('/')); + return string; +} + +static void cleanupFSStream(FSEventStreamRef stream) +{ + if (stream) + FSEventStreamRelease(stream); +} + +const FSEventStreamCreateFlags QtFSEventFlags = (kFSEventStreamCreateFlagUseCFTypes | kFSEventStreamCreateFlagNoDefer /* | kFSEventStreamCreateFlagWatchRoot*/); + +const CFTimeInterval Latency = 0.033; // This will do updates 30 times a second which is probably more than you need. +#endif + +QFSEventsFileSystemWatcherEngine::QFSEventsFileSystemWatcherEngine() + : fsStream(0), pathsToWatch(0), threadsRunLoop(0) +{ +} + +QFSEventsFileSystemWatcherEngine::~QFSEventsFileSystemWatcherEngine() +{ +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + // I assume that at this point, QFileSystemWatcher has already called stop + // on me, so I don't need to invalidate or stop my stream, simply + // release it. + cleanupFSStream(fsStream); + if (pathsToWatch) + CFRelease(pathsToWatch); +#endif +} + +QFSEventsFileSystemWatcherEngine *QFSEventsFileSystemWatcherEngine::create() +{ + return new QFSEventsFileSystemWatcherEngine(); +} + +QStringList QFSEventsFileSystemWatcherEngine::addPaths(const QStringList &paths, + QStringList *files, + QStringList *directories) +{ +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + stop(); + QMutexLocker locker(&mutex); + QStringList failedToAdd; + // if we have a running FSStreamEvent, we have to kill it, we'll re-add the stream soon. + FSEventStreamEventId idToCheck; + if (fsStream) { + idToCheck = FSEventStreamGetLatestEventId(fsStream); + cleanupFSStream(fsStream); + } else { + idToCheck = kFSEventStreamEventIdSinceNow; + } + + // Brain-dead approach, but works. FSEvents actually can already read sub-trees, but since it's + // work to figure out if we are doing a double register, we just register it twice as FSEvents + // seems smart enough to only deliver one event. We also duplicate directory entries in here + // (e.g., if you watch five files in the same directory, you get that directory included in the + // array 5 times). This stupidity also makes remove work correctly though. I'll freely admit + // that we could make this a bit smarter. If you do, check the auto-tests, they should catch at + // least a couple of the issues. + QCFType<CFMutableArrayRef> tmpArray = CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks); + for (int i = 0; i < paths.size(); ++i) { + const QString &path = paths.at(i); + + QFileInfo fileInfo(path); + if (!fileInfo.exists()) { + failedToAdd.append(path); + continue; + } + + if (fileInfo.isDir()) { + if (directories->contains(path)) { + failedToAdd.append(path); + continue; + } else { + directories->append(path); + // Full file path for dirs. + QCFString cfpath(createFSStreamPath(fileInfo.absoluteFilePath())); + addPathToHash(dirPathInfoHash, cfpath, fileInfo, path); + CFArrayAppendValue(tmpArray, cfpath); + } + } else { + if (files->contains(path)) { + failedToAdd.append(path); + continue; + } else { + // Just the absolute path (minus it's filename) for files. + QCFString cfpath(createFSStreamPath(fileInfo.absolutePath())); + files->append(path); + addPathToHash(filePathInfoHash, cfpath, fileInfo, path); + CFArrayAppendValue(tmpArray, cfpath); + } + } + } + if (CFArrayGetCount(tmpArray) > 0) { + if (pathsToWatch) { + CFArrayAppendArray(tmpArray, pathsToWatch, CFRangeMake(0, CFArrayGetCount(pathsToWatch))); + CFRelease(pathsToWatch); + } + pathsToWatch = CFArrayCreateCopy(kCFAllocatorDefault, tmpArray); + } + FSEventStreamContext context = { 0, this, 0, 0, 0 }; + fsStream = FSEventStreamCreate(kCFAllocatorDefault, + QFSEventsFileSystemWatcherEngine::fseventsCallback, + &context, pathsToWatch, + idToCheck, Latency, QtFSEventFlags); + warmUpFSEvents(); + + return failedToAdd; +#else + Q_UNUSED(paths); + Q_UNUSED(files); + Q_UNUSED(directories); + return QStringList(); +#endif +} + +void QFSEventsFileSystemWatcherEngine::warmUpFSEvents() +{ +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + // This function assumes that the mutex has already been grabbed before calling it. + // It exits with the mutex still locked (Q_ASSERT(mutex.isLocked()) ;-). + start(); + waitCondition.wait(&mutex); +#endif +} + +QStringList QFSEventsFileSystemWatcherEngine::removePaths(const QStringList &paths, + QStringList *files, + QStringList *directories) +{ +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + stop(); + QMutexLocker locker(&mutex); + // short circuit for smarties that call remove before add and we have nothing. + if (pathsToWatch == 0) + return paths; + QStringList failedToRemove; + // if we have a running FSStreamEvent, we have to stop it, we'll re-add the stream soon. + FSEventStreamEventId idToCheck; + if (fsStream) { + idToCheck = FSEventStreamGetLatestEventId(fsStream); + cleanupFSStream(fsStream); + fsStream = 0; + } else { + idToCheck = kFSEventStreamEventIdSinceNow; + } + + CFIndex itemCount = CFArrayGetCount(pathsToWatch); + QCFType<CFMutableArrayRef> tmpArray = CFArrayCreateMutableCopy(kCFAllocatorDefault, itemCount, + pathsToWatch); + CFRelease(pathsToWatch); + pathsToWatch = 0; + for (int i = 0; i < paths.size(); ++i) { + // Get the itemCount at the beginning to avoid any overruns during the iteration. + itemCount = CFArrayGetCount(tmpArray); + const QString &path = paths.at(i); + QFileInfo fi(path); + QCFString cfpath(createFSStreamPath(fi.absolutePath())); + + CFIndex index = CFArrayGetFirstIndexOfValue(tmpArray, CFRangeMake(0, itemCount), cfpath); + if (index != -1) { + CFArrayRemoveValueAtIndex(tmpArray, index); + files->removeAll(path); + removePathFromHash(filePathInfoHash, cfpath, path); + } else { + // Could be a directory we are watching instead. + QCFString cfdirpath(createFSStreamPath(fi.absoluteFilePath())); + index = CFArrayGetFirstIndexOfValue(tmpArray, CFRangeMake(0, itemCount), cfdirpath); + if (index != -1) { + CFArrayRemoveValueAtIndex(tmpArray, index); + directories->removeAll(path); + removePathFromHash(dirPathInfoHash, cfpath, path); + } else { + failedToRemove.append(path); + } + } + } + itemCount = CFArrayGetCount(tmpArray); + if (itemCount != 0) { + pathsToWatch = CFArrayCreateCopy(kCFAllocatorDefault, tmpArray); + + FSEventStreamContext context = { 0, this, 0, 0, 0 }; + fsStream = FSEventStreamCreate(kCFAllocatorDefault, + QFSEventsFileSystemWatcherEngine::fseventsCallback, + &context, pathsToWatch, idToCheck, Latency, QtFSEventFlags); + warmUpFSEvents(); + } + return failedToRemove; +#else + Q_UNUSED(paths); + Q_UNUSED(files); + Q_UNUSED(directories); + return QStringList(); +#endif +} + +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 +void QFSEventsFileSystemWatcherEngine::updateList(PathInfoList &list, bool directory, bool emitSignals) +{ + PathInfoList::iterator End = list.end(); + PathInfoList::iterator it = list.begin(); + while (it != End) { + struct ::stat64 newInfo; + if (::stat64(it->absolutePath, &newInfo) == 0) { + if (emitSignals) { + if (newInfo != it->savedInfo) { + it->savedInfo = newInfo; + if (directory) + emit directoryChanged(it->originalPath, false); + else + emit fileChanged(it->originalPath, false); + } + } else { + it->savedInfo = newInfo; + } + } else { + if (errno == ENOENT) { + if (emitSignals) { + if (directory) + emit directoryChanged(it->originalPath, true); + else + emit fileChanged(it->originalPath, true); + } + it = list.erase(it); + continue; + } else { + qWarning("%s:%d:QFSEventsFileSystemWatcherEngine: stat error on %s:%s", + __FILE__, __LINE__, qPrintable(it->originalPath), strerror(errno)); + + } + } + ++it; + } +} + +void QFSEventsFileSystemWatcherEngine::updateHash(PathHash &pathHash) +{ + PathHash::iterator HashEnd = pathHash.end(); + PathHash::iterator it = pathHash.begin(); + const bool IsDirectory = (&pathHash == &dirPathInfoHash); + while (it != HashEnd) { + updateList(it.value(), IsDirectory, false); + if (it.value().isEmpty()) + it = pathHash.erase(it); + else + ++it; + } +} +#endif + +void QFSEventsFileSystemWatcherEngine::fseventsCallback(ConstFSEventStreamRef , + void *clientCallBackInfo, size_t numEvents, + void *eventPaths, + const FSEventStreamEventFlags eventFlags[], + const FSEventStreamEventId []) +{ +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + QFSEventsFileSystemWatcherEngine *watcher = static_cast<QFSEventsFileSystemWatcherEngine *>(clientCallBackInfo); + QMutexLocker locker(&watcher->mutex); + CFArrayRef paths = static_cast<CFArrayRef>(eventPaths); + for (size_t i = 0; i < numEvents; ++i) { + const QString path = QCFString::toQString( + static_cast<CFStringRef>(CFArrayGetValueAtIndex(paths, i))); + const FSEventStreamEventFlags pathFlags = eventFlags[i]; + // There are several flags that may be passed, but we really don't care about them ATM. + // Here they are and why we don't care. + // kFSEventStreamEventFlagHistoryDone--(very unlikely to be gotten, but even then, not much changes). + // kFSEventStreamEventFlagMustScanSubDirs--Likely means the data is very much out of date, we + // aren't coalescing our directories, so again not so much of an issue + // kFSEventStreamEventFlagRootChanged | kFSEventStreamEventFlagMount | kFSEventStreamEventFlagUnmount-- + // These three flags indicate something has changed, but the stat will likely show this, so + // there's not really much to worry about. + // (btw, FSEvents is not the correct way of checking for mounts/unmounts, + // there are real CarbonCore events for that.) + Q_UNUSED(pathFlags); + if (watcher->filePathInfoHash.contains(path)) + watcher->updateList(watcher->filePathInfoHash[path], false, true); + + if (watcher->dirPathInfoHash.contains(path)) + watcher->updateList(watcher->dirPathInfoHash[path], true, true); + } +#else + Q_UNUSED(clientCallBackInfo); + Q_UNUSED(numEvents); + Q_UNUSED(eventPaths); + Q_UNUSED(eventFlags); +#endif +} + +void QFSEventsFileSystemWatcherEngine::stop() +{ +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + stopFSStream(fsStream); + if (threadsRunLoop) + CFRunLoopStop(threadsRunLoop); +#endif +} + +void QFSEventsFileSystemWatcherEngine::updateFiles() +{ +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + QMutexLocker locker(&mutex); + updateHash(filePathInfoHash); + updateHash(dirPathInfoHash); + if (filePathInfoHash.isEmpty() && dirPathInfoHash.isEmpty()) { + // Everything disappeared before we got to start, don't bother. + stop(); + cleanupFSStream(fsStream); + } + waitCondition.wakeAll(); +#endif +} + +void QFSEventsFileSystemWatcherEngine::run() +{ +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + threadsRunLoop = CFRunLoopGetCurrent(); + FSEventStreamScheduleWithRunLoop(fsStream, threadsRunLoop, kCFRunLoopDefaultMode); + bool startedOK = FSEventStreamStart(fsStream); + // It's recommended by Apple that you only update the files after you've started + // the stream, because otherwise you might miss an update in between starting it. + updateFiles(); +#ifdef QT_NO_DEBUG + Q_UNUSED(startedOK); +#else + Q_ASSERT(startedOK); +#endif + // If for some reason we called stop up above (and invalidated our stream), this call will return + // immediately. + CFRunLoopRun(); + threadsRunLoop = 0; +#endif +} + +QT_END_NAMESPACE diff --git a/src/corelib/io/qfilesystemwatcher_fsevents_p.h b/src/corelib/io/qfilesystemwatcher_fsevents_p.h new file mode 100644 index 0000000..2e8b788 --- /dev/null +++ b/src/corelib/io/qfilesystemwatcher_fsevents_p.h @@ -0,0 +1,127 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Nokia Corporation (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 http://www.qtsoftware.com/contact. +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#ifndef FILEWATCHER_FSEVENTS_P_H +#define FILEWATCHER_FSEVENTS_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of the QLibrary class. This header file may change from +// version to version without notice, or even be removed. +// +// We mean it. +// + +#include "qfilesystemwatcher_p.h" + +#include <QtCore/qmutex.h> +#include <QtCore/qwaitcondition.h> +#include <QtCore/qthread.h> +#include <QtCore/QHash> +#include <QtCore/QLinkedList> +#include <private/qcore_mac_p.h> +#include <sys/stat.h> + +typedef struct __FSEventStream *FSEventStreamRef; +typedef const struct __FSEventStream *ConstFSEventStreamRef; +typedef const struct __CFArray *CFArrayRef; +typedef uint FSEventStreamEventFlags; +typedef uint64_t FSEventStreamEventId; + +QT_BEGIN_NAMESPACE + +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 +// Yes, I use a stat64 element here. QFileInfo requires too much knowledge about implementation +// details to be used as a long-standing record. Since I'm going to have to store this information, I can +// do the stat myself too. +struct PathInfo { + PathInfo(const QString &path, const QByteArray &absPath) + : originalPath(path), absolutePath(absPath) {} + QString originalPath; // The path we need to emit + QByteArray absolutePath; // The path we need to stat. + struct ::stat64 savedInfo; // All the info for the path so we can compare it. +}; +typedef QLinkedList<PathInfo> PathInfoList; +typedef QHash<QString, PathInfoList> PathHash; +#endif + +class QFSEventsFileSystemWatcherEngine : public QFileSystemWatcherEngine +{ + Q_OBJECT +public: + ~QFSEventsFileSystemWatcherEngine(); + + static QFSEventsFileSystemWatcherEngine *create(); + + QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories); + QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories); + + void stop(); + +private: + QFSEventsFileSystemWatcherEngine(); + void warmUpFSEvents(); + void updateFiles(); + + static void fseventsCallback(ConstFSEventStreamRef streamRef, void *clientCallBackInfo, size_t numEvents, + void *eventPaths, const FSEventStreamEventFlags eventFlags[], + const FSEventStreamEventId eventIds[]); + void run(); + FSEventStreamRef fsStream; + CFArrayRef pathsToWatch; + CFRunLoopRef threadsRunLoop; + QMutex mutex; + QWaitCondition waitCondition; +#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5 + PathHash filePathInfoHash; + PathHash dirPathInfoHash; + void updateHash(PathHash &pathHash); + void updateList(PathInfoList &list, bool directory, bool emitSignals); +#endif +}; + +#endif + +QT_END_NAMESPACE diff --git a/src/corelib/kernel/qeventdispatcher_unix.cpp b/src/corelib/kernel/qeventdispatcher_unix.cpp index fac8a28..2139545 100644 --- a/src/corelib/kernel/qeventdispatcher_unix.cpp +++ b/src/corelib/kernel/qeventdispatcher_unix.cpp @@ -67,6 +67,25 @@ QT_BEGIN_NAMESPACE Q_CORE_EXPORT bool qt_disable_lowpriority_timers=false; +// check for _POSIX_MONOTONIC_CLOCK support +static bool supportsMonotonicClock() +{ + bool returnValue; + +#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC) + returnValue = false; +# if (_POSIX_MONOTONIC_CLOCK == 0) + // detect if the system support monotonic timers + long x = sysconf(_SC_MONOTONIC_CLOCK); + returnValue = x >= 200112L; +# endif +#else + returnValue = true; +#endif + + return returnValue; +} + /***************************************************************************** UNIX signal handling *****************************************************************************/ @@ -262,18 +281,11 @@ int QEventDispatcherUNIXPrivate::doSelect(QEventLoop::ProcessEventsFlags flags, */ QTimerInfoList::QTimerInfoList() + : useMonotonicTimers(supportsMonotonicClock()) { -#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC) - useMonotonicTimers = false; - -# if (_POSIX_MONOTONIC_CLOCK == 0) - // detect if the system support monotonic timers - long x = sysconf(_SC_MONOTONIC_CLOCK); - useMonotonicTimers = x != -1; -# endif - getTime(currentTime); +#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC) if (!useMonotonicTimers) { // not using monotonic timers, initialize the timeChanged() machinery previousTime = currentTime; @@ -290,9 +302,6 @@ QTimerInfoList::QTimerInfoList() ticksPerSecond = 0; msPerTick = 0; } -#else - // using monotonic timers unconditionally - getTime(currentTime); #endif firstTimerInfo = currentTimerInfo = 0; @@ -306,6 +315,20 @@ timeval QTimerInfoList::updateCurrentTime() #if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)) || defined(QT_BOOTSTRAPPED) +template <> +timeval qAbs(const timeval &t) +{ + timeval tmp = t; + if (tmp.tv_sec < 0) { + tmp.tv_sec = -tmp.tv_sec - 1; + tmp.tv_usec -= 1000000; + } + if (tmp.tv_sec == 0 && tmp.tv_usec < 0) { + tmp.tv_usec = -tmp.tv_usec; + } + return normalizedTimeval(tmp); +} + /* Returns true if the real time clock has changed by more than 10% relative to the processor time since the last time this function was @@ -318,23 +341,27 @@ bool QTimerInfoList::timeChanged(timeval *delta) tms unused; clock_t currentTicks = times(&unused); - int elapsedTicks = currentTicks - previousTicks; + clock_t elapsedTicks = currentTicks - previousTicks; timeval elapsedTime = currentTime - previousTime; - int elapsedMsecTicks = (elapsedTicks * 1000) / ticksPerSecond; - int deltaMsecs = (elapsedTime.tv_sec * 1000 + elapsedTime.tv_usec / 1000) - - elapsedMsecTicks; - if (delta) { - delta->tv_sec = deltaMsecs / 1000; - delta->tv_usec = (deltaMsecs % 1000) * 1000; - } + timeval elapsedTimeTicks; + elapsedTimeTicks.tv_sec = elapsedTicks / ticksPerSecond; + elapsedTimeTicks.tv_usec = (((elapsedTicks * 1000) / ticksPerSecond) % 1000) * 1000; + + timeval dummy; + if (!delta) + delta = &dummy; + *delta = elapsedTime - elapsedTimeTicks; + previousTicks = currentTicks; previousTime = currentTime; // If tick drift is more than 10% off compared to realtime, we assume that the clock has // been set. Of course, we have to allow for the tick granularity as well. - - return (qAbs(deltaMsecs) - msPerTick) * 10 > elapsedMsecTicks; + timeval tickGranularity; + tickGranularity.tv_sec = 0; + tickGranularity.tv_usec = msPerTick * 1000; + return elapsedTimeTicks < ((qAbs(*delta) - tickGranularity) * 10); } void QTimerInfoList::getTime(timeval &t) @@ -424,7 +451,7 @@ void QTimerInfoList::timerRepair(const timeval &diff) // repair all timers for (int i = 0; i < size(); ++i) { register QTimerInfo *t = at(i); - t->timeout = t->timeout - diff; + t->timeout = t->timeout + diff; } } @@ -622,7 +649,7 @@ int QEventDispatcherUNIX::select(int nfds, fd_set *readfds, fd_set *writefds, fd timeval *timeout) { Q_D(QEventDispatcherUNIX); - if (timeout) { + if (timeout && d->timerList.useMonotonicTimers) { // handle the case where select returns with a timeout, too // soon. timeval tvStart = d->timerList.currentTime; diff --git a/src/corelib/kernel/qeventdispatcher_unix_p.h b/src/corelib/kernel/qeventdispatcher_unix_p.h index ebba21b..28e7f9b 100644 --- a/src/corelib/kernel/qeventdispatcher_unix_p.h +++ b/src/corelib/kernel/qeventdispatcher_unix_p.h @@ -71,6 +71,18 @@ QT_BEGIN_NAMESPACE #endif // Internal operator functions for timevals +inline timeval &normalizedTimeval(timeval &t) +{ + while (t.tv_usec > 1000000l) { + ++t.tv_sec; + t.tv_usec -= 1000000l; + } + while (t.tv_usec < 0l) { + --t.tv_sec; + t.tv_usec += 1000000l; + } + return t; +} inline bool operator<(const timeval &t1, const timeval &t2) { return t1.tv_sec < t2.tv_sec || (t1.tv_sec == t2.tv_sec && t1.tv_usec < t2.tv_usec); } inline bool operator==(const timeval &t1, const timeval &t2) @@ -78,31 +90,29 @@ inline bool operator==(const timeval &t1, const timeval &t2) inline timeval &operator+=(timeval &t1, const timeval &t2) { t1.tv_sec += t2.tv_sec; - if ((t1.tv_usec += t2.tv_usec) >= 1000000l) { - ++t1.tv_sec; - t1.tv_usec -= 1000000l; - } - return t1; + t1.tv_usec += t2.tv_usec; + return normalizedTimeval(t1); } inline timeval operator+(const timeval &t1, const timeval &t2) { timeval tmp; tmp.tv_sec = t1.tv_sec + t2.tv_sec; - if ((tmp.tv_usec = t1.tv_usec + t2.tv_usec) >= 1000000l) { - ++tmp.tv_sec; - tmp.tv_usec -= 1000000l; - } - return tmp; + tmp.tv_usec = t1.tv_usec + t2.tv_usec; + return normalizedTimeval(tmp); } inline timeval operator-(const timeval &t1, const timeval &t2) { timeval tmp; - tmp.tv_sec = t1.tv_sec - t2.tv_sec; - if ((tmp.tv_usec = t1.tv_usec - t2.tv_usec) < 0l) { - --tmp.tv_sec; - tmp.tv_usec += 1000000l; - } - return tmp; + tmp.tv_sec = t1.tv_sec - (t2.tv_sec - 1); + tmp.tv_usec = t1.tv_usec - (t2.tv_usec + 1000000); + return normalizedTimeval(tmp); +} +inline timeval operator*(const timeval &t1, int mul) +{ + timeval tmp; + tmp.tv_sec = t1.tv_sec * mul; + tmp.tv_usec = t1.tv_usec * mul; + return normalizedTimeval(tmp); } // internal timer info @@ -117,8 +127,6 @@ struct QTimerInfo { class QTimerInfoList : public QList<QTimerInfo*> { #if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)) || defined(QT_BOOTSTRAPPED) - bool useMonotonicTimers; - timeval previousTime; clock_t previousTicks; int ticksPerSecond; @@ -133,6 +141,8 @@ class QTimerInfoList : public QList<QTimerInfo*> public: QTimerInfoList(); + const bool useMonotonicTimers; + void getTime(timeval &t); timeval currentTime; |