Merge branch 'master' into contiguouscache

12 files changed, 268 insertions, 204 deletions

diff --git a/src/corelib/io/qdatastream.cpp b/src/corelib/io/qdatastream.cpp
index 9990696..b203899 100644
--- a/src/corelib/io/qdatastream.cpp
+++ b/src/corelib/io/qdatastream.cpp
@@ -514,7 +514,7 @@ void QDataStream::setByteOrder(ByteOrder bo)
     \value Qt_4_2 Version 8 (Qt 4.2)
     \value Qt_4_3 Version 9 (Qt 4.3)
     \value Qt_4_4 Version 10 (Qt 4.4)
-    \value Qt_4_5 Version 10 (Qt 4.5)
+    \value Qt_4_5 Version 11 (Qt 4.5)
     \omitvalue Qt_4_6
 
     \sa setVersion(), version()
diff --git a/src/corelib/io/qdir.cpp b/src/corelib/io/qdir.cpp
index 6d75c59..0dc8a63 100644
--- a/src/corelib/io/qdir.cpp
+++ b/src/corelib/io/qdir.cpp
@@ -50,10 +50,13 @@
 #include "qstring.h"
 #include "qregexp.h"
 #include "qvector.h"
+#include "qalgorithms.h"
 #ifdef QT_BUILD_CORE_LIB
 # include "qresource.h"
 #endif
 
+#include "qvarlengtharray.h"
+
 #include "../kernel/qcoreglobaldata_p.h"
 #include <stdlib.h>
 
@@ -190,32 +193,28 @@ QDirPrivate::~QDirPrivate()
 
 /* For sorting */
 struct QDirSortItem {
-    QString filename_cache;
-    QString suffix_cache;
+    mutable QString filename_cache;
+    mutable QString suffix_cache;
     QFileInfo item;
 };
-static int qt_cmp_si_sort_flags;
 
-#if defined(Q_C_CALLBACKS)
-extern "C" {
-#endif
 
-#ifdef Q_OS_WINCE
-static int __cdecl qt_cmp_si(const void *n1, const void *n2)
-#else
-static int qt_cmp_si(const void *n1, const void *n2)
-#endif
-{
-    if (!n1 || !n2)
-        return 0;
+class QDirSortItemComparator {
+    int qt_cmp_si_sort_flags;
+public:
+    QDirSortItemComparator(int flags) : qt_cmp_si_sort_flags(flags) {}
+    bool operator()(const QDirSortItem &, const QDirSortItem &);
+};
 
-    QDirSortItem* f1 = (QDirSortItem*)n1;
-    QDirSortItem* f2 = (QDirSortItem*)n2;
+bool QDirSortItemComparator::operator()(const QDirSortItem &n1, const QDirSortItem &n2)
+{
+    const QDirSortItem* f1 = &n1;
+    const QDirSortItem* f2 = &n2;
 
     if ((qt_cmp_si_sort_flags & QDir::DirsFirst) && (f1->item.isDir() != f2->item.isDir()))
-        return f1->item.isDir() ? -1 : 1;
+        return f1->item.isDir();
     if ((qt_cmp_si_sort_flags & QDir::DirsLast) && (f1->item.isDir() != f2->item.isDir()))
-        return f1->item.isDir() ? 1 : -1;
+        return !f1->item.isDir();
 
     int r = 0;
     int sortBy = (qt_cmp_si_sort_flags & QDir::SortByMask)
@@ -264,17 +263,10 @@ static int qt_cmp_si(const void *n1, const void *n2)
             : f1->filename_cache.compare(f2->filename_cache);
     }
 
-    if (r == 0) // Enforce an order - the order the items appear in the array
-        r = (char*)n1 - (char*)n2;
-
     if (qt_cmp_si_sort_flags & QDir::Reversed)
-        return -r;
-    return r;
-}
-
-#if defined(Q_C_CALLBACKS)
+        return r > 0;
+    return r < 0;
 }
-#endif
 
 inline void QDirPrivate::sortFileList(QDir::SortFlags sort, QStringList &l,
                                       QStringList *names, QFileInfoList *infos) const
@@ -292,9 +284,8 @@ inline void QDirPrivate::sortFileList(QDir::SortFlags sort, QStringList &l,
                 path += QLatin1Char('/');
             si[i].item = QFileInfo(path + l.at(i));
         }
-        qt_cmp_si_sort_flags = sort;
         if ((sort & QDir::SortByMask) != QDir::Unsorted)
-            qsort(si, i, sizeof(si[0]), qt_cmp_si);
+            qStableSort(si, si+i, QDirSortItemComparator(sort));
         // put them back in the list(s)
         for (int j = 0; j<i; j++) {
             if(infos)
@@ -2065,11 +2056,13 @@ QString QDir::cleanPath(const QString &path)
     QString name = path;
     QChar dir_separator = separator();
     if(dir_separator != QLatin1Char('/'))
-	name.replace(dir_separator, QLatin1Char('/'));
+ 	name.replace(dir_separator, QLatin1Char('/'));
 
     int used = 0, levels = 0;
     const int len = name.length();
-    QVector<QChar> out(len);
+    QVarLengthArray<QChar> outVector(len);
+    QChar *out = outVector.data();
+
     const QChar *p = name.unicode();
     for(int i = 0, last = -1, iwrite = 0; i < len; i++) {
         if(p[i] == QLatin1Char('/')) {
@@ -2169,7 +2162,7 @@ QString QDir::cleanPath(const QString &path)
     if(used == len)
         ret = name;
     else
-	ret = QString(out.data(), used);
+	ret = QString(out, used);
 
     // Strip away last slash except for root directories
     if (ret.endsWith(QLatin1Char('/'))
@@ -2232,7 +2225,7 @@ QStringList QDir::nameFiltersFromString(const QString &nameFilter)
 
     \snippet doc/src/snippets/code/src_corelib_io_qdir.cpp 13
 
-    If the file name contains characters that cannot be part of a valid C++ function name 
+    If the file name contains characters that cannot be part of a valid C++ function name
     (such as '-'), they have to be replaced by the underscore character ('_').
 
     Note: This macro cannot be used in a namespace. It should be called from
diff --git a/src/corelib/io/qfile.cpp b/src/corelib/io/qfile.cpp
index d7da800..04750b0 100644
--- a/src/corelib/io/qfile.cpp
+++ b/src/corelib/io/qfile.cpp
@@ -708,6 +708,7 @@ QFile::rename(const QString &newName)
         d->setError(QFile::RenameError, tr("Destination file exists"));
         return false;
     }
+    unsetError();
     close();
     if(error() == QFile::NoError) {
         if (fileEngine()->rename(newName)) {
@@ -849,6 +850,7 @@ QFile::copy(const QString &newName)
         d->setError(QFile::CopyError, tr("Destination file exists"));
         return false;
     }
+    unsetError();
     close();
     if(error() == QFile::NoError) {
         if(fileEngine()->copy(newName)) {
@@ -908,6 +910,7 @@ QFile::copy(const QString &newName)
                         out.setAutoRemove(false);
 #endif
                 }
+                close();
             }
             if(!error) {
                 QFile::setPermissions(newName, permissions());
diff --git a/src/corelib/io/qfileinfo.cpp b/src/corelib/io/qfileinfo.cpp
index 96e0f82..36b1ed8 100644
--- a/src/corelib/io/qfileinfo.cpp
+++ b/src/corelib/io/qfileinfo.cpp
@@ -537,8 +537,7 @@ QFileInfo &QFileInfo::operator=(const QFileInfo &fileinfo)
 
 void QFileInfo::setFile(const QString &file)
 {
-    Q_D(QFileInfo);
-    d->initFileEngine(file);
+    *this = QFileInfo(file);
 }
 
 /*!
@@ -555,8 +554,7 @@ void QFileInfo::setFile(const QString &file)
 
 void QFileInfo::setFile(const QFile &file)
 {
-    Q_D(QFileInfo);
-    d->initFileEngine(file.fileName());
+    *this = QFileInfo(file.fileName());
 }
 
 /*!
@@ -573,8 +571,7 @@ void QFileInfo::setFile(const QFile &file)
 
 void QFileInfo::setFile(const QDir &dir, const QString &file)
 {
-    Q_D(QFileInfo);
-    d->initFileEngine(dir.filePath(file));
+    *this = QFileInfo(dir.filePath(file));
 }
 
 /*!
@@ -921,7 +918,7 @@ QString QFileInfo::suffix() const
 
   \bold{Note:} The QDir returned always corresponds to the object's
   parent directory, even if the QFileInfo represents a directory.
-  
+
   For each of the follwing, dir() returns a QDir for
   \c{"~/examples/191697"}.
 
diff --git a/src/corelib/io/qfilesystemwatcher_inotify.cpp b/src/corelib/io/qfilesystemwatcher_inotify.cpp
index 4445e3c..fa44531 100644
--- a/src/corelib/io/qfilesystemwatcher_inotify.cpp
+++ b/src/corelib/io/qfilesystemwatcher_inotify.cpp
@@ -316,7 +316,7 @@ void QInotifyFileSystemWatcherEngine::readFromInotify()
     // qDebug() << "QInotifyFileSystemWatcherEngine::readFromInotify";
 
     int buffSize = 0;
-    ioctl(inotifyFd, FIONREAD, &buffSize);
+    ioctl(inotifyFd, FIONREAD, (char *) &buffSize);
     QVarLengthArray<char, 4096> buffer(buffSize);
     buffSize = read(inotifyFd, buffer.data(), buffSize);
     const char *at = buffer.data();
diff --git a/src/corelib/io/qfsfileengine_win.cpp b/src/corelib/io/qfsfileengine_win.cpp
index 522be20..c5b54b4 100644
--- a/src/corelib/io/qfsfileengine_win.cpp
+++ b/src/corelib/io/qfsfileengine_win.cpp
@@ -346,8 +346,15 @@ bool QFSFileEnginePrivate::uncListSharesOnServer(const QString &server, QStringL
 static bool isUncRoot(const QString &server)
 {
     QString localPath = QDir::toNativeSeparators(server);
-    QStringList parts = localPath.split(QLatin1Char('\\'), QString::SkipEmptyParts);
-    return localPath.startsWith(QLatin1String("\\\\")) && parts.count() <= 1;
+    if (!localPath.startsWith(QLatin1String("\\\\")))
+        return false;
+
+    int idx = localPath.indexOf(QLatin1Char('\\'), 2);
+    if (idx == -1 || idx + 1 == localPath.length())
+        return true;
+
+    localPath = localPath.right(localPath.length() - idx - 1).trimmed();
+    return localPath.isEmpty();
 }
 
 static bool isUncPath(const QString &path)
@@ -1385,8 +1392,6 @@ bool QFSFileEnginePrivate::doStat() const
             if (tmpAttributes != -1) {
                 fileAttrib = tmpAttributes;
                 could_stat = true;
-            } else {
-                return false;
             }
 #endif
         } else {
diff --git a/src/corelib/io/qprocess_unix.cpp b/src/corelib/io/qprocess_unix.cpp
index 5537c9d..2f05f6e 100644
--- a/src/corelib/io/qprocess_unix.cpp
+++ b/src/corelib/io/qprocess_unix.cpp
@@ -856,10 +856,10 @@ bool QProcessPrivate::processStarted()
 
 qint64 QProcessPrivate::bytesAvailableFromStdout() const
 {
-    size_t nbytes = 0;
+    int nbytes = 0;
     qint64 available = 0;
     if (::ioctl(stdoutChannel.pipe[0], FIONREAD, (char *) &nbytes) >= 0)
-        available = (qint64) *((int *) &nbytes);
+        available = (qint64) nbytes;
 #if defined (QPROCESS_DEBUG)
     qDebug("QProcessPrivate::bytesAvailableFromStdout() == %lld", available);
 #endif
@@ -868,10 +868,10 @@ qint64 QProcessPrivate::bytesAvailableFromStdout() const
 
 qint64 QProcessPrivate::bytesAvailableFromStderr() const
 {
-    size_t nbytes = 0;
+    int nbytes = 0;
     qint64 available = 0;
     if (::ioctl(stderrChannel.pipe[0], FIONREAD, (char *) &nbytes) >= 0)
-        available = (qint64) *((int *) &nbytes);
+        available = (qint64) nbytes;
 #if defined (QPROCESS_DEBUG)
     qDebug("QProcessPrivate::bytesAvailableFromStderr() == %lld", available);
 #endif
diff --git a/src/corelib/io/qresource.cpp b/src/corelib/io/qresource.cpp
index a1f921e..779a742 100644
--- a/src/corelib/io/qresource.cpp
+++ b/src/corelib/io/qresource.cpp
@@ -60,6 +60,37 @@
 
 QT_BEGIN_NAMESPACE
 
+
+class QStringSplitter
+{
+public:
+    QStringSplitter(const QString &s)
+        : m_string(s), m_data(m_string.constData()), m_len(s.length()), m_pos(0)
+    {
+        m_splitChar = QLatin1Char('/');
+    }
+
+    inline bool hasNext() {
+        while (m_pos < m_len && m_data[m_pos] == m_splitChar)
+            ++m_pos;
+        return m_pos < m_len;
+    }
+
+    inline QStringRef next() {
+        int start = m_pos;
+        while (m_pos < m_len && m_data[m_pos] != m_splitChar)
+            ++m_pos;
+        return QStringRef(&m_string, start, m_pos - start);
+    }
+
+    QString m_string;
+    const QChar *m_data;
+    QChar m_splitChar;
+    int m_len;
+    int m_pos;
+};
+
+
 //resource glue
 class QResourceRoot
 {
@@ -101,6 +132,16 @@ protected:
     }
 };
 
+static QString cleanPath(const QString &_path)
+{
+    QString path = QDir::cleanPath(_path);
+    // QDir::cleanPath does not remove two trailing slashes under _Windows_
+    // due to support for UNC paths. Remove those manually.
+    if (path.startsWith(QLatin1String("//")))
+        path.remove(0, 1);
+    return path;
+}
+
 Q_DECLARE_TYPEINFO(QResourceRoot, Q_MOVABLE_TYPE);
 
 Q_GLOBAL_STATIC_WITH_ARGS(QMutex, resourceMutex, (QMutex::Recursive))
@@ -216,9 +257,10 @@ QResourcePrivate::load(const QString &file)
     related.clear();
     QMutexLocker lock(resourceMutex());
     const ResourceList *list = resourceList();
+    QString cleaned = cleanPath(file);
     for(int i = 0; i < list->size(); ++i) {
         QResourceRoot *res = list->at(i);
-        const int node = res->findNode(file);
+        const int node = res->findNode(cleaned);
         if(node != -1) {
             if(related.isEmpty()) {
                 container = res->isContainer(node);
@@ -292,6 +334,7 @@ QResourcePrivate::ensureChildren() const
     if(path.startsWith(QLatin1Char(':')))
         path = path.mid(1);
     QSet<QString> kids;
+    QString cleaned = cleanPath(path);
     for(int i = 0; i < related.size(); ++i) {
         QResourceRoot *res = related.at(i);
         if(res->mappingRootSubdir(path, &k) && !k.isEmpty()) {
@@ -300,7 +343,7 @@ QResourcePrivate::ensureChildren() const
                 kids.insert(k);
             }
         } else {
-            const int node = res->findNode(path);
+            const int node = res->findNode(cleaned);
             if(node != -1) {
                 QStringList related_children = res->children(node);
                 for(int kid = 0; kid < related_children.size(); ++kid) {
@@ -562,18 +605,20 @@ inline QString QResourceRoot::name(int node) const
                               (names[name_offset+1] << 0);
     name_offset += 2;
     name_offset += 4; //jump past hash
-    for(int i = 0; i < name_length*2; i+=2)
-        ret += QChar(names[name_offset+i+1], names[name_offset+i]);
+
+    ret.resize(name_length);
+    QChar *strData = ret.data();
+    for(int i = 0; i < name_length*2; i+=2) {
+        QChar c(names[name_offset+i+1], names[name_offset+i]);
+        *strData = c;
+        ++strData;
+    }
     return ret;
 }
+
 int QResourceRoot::findNode(const QString &_path, const QLocale &locale) const
 {
-    QString path = QDir::cleanPath(_path);
-    // QDir::cleanPath does not remove two trailing slashes under _Windows_
-    // due to support for UNC paths. Remove those manually.
-    if (path.startsWith(QLatin1String("//")))
-        path.remove(0, 1);
-
+    QString path = _path;
     {
         QString root = mappingRoot();
         if(!root.isEmpty()) {
@@ -604,12 +649,11 @@ int QResourceRoot::findNode(const QString &_path, const QLocale &locale) const
 
     //now iterate up the tree
     int node = -1;
-    QStringList segments = path.split(QLatin1Char('/'), QString::SkipEmptyParts);
-#ifdef DEBUG_RESOURCE_MATCH
-    qDebug() << "****" << segments;
-#endif
-    for(int i = 0; child_count && i < segments.size(); ++i) {
-        const QString &segment = segments[i];
+
+    QStringSplitter splitter(path);
+    while (child_count && splitter.hasNext()) {
+        QStringRef segment = splitter.next();
+
 #ifdef DEBUG_RESOURCE_MATCH
         qDebug() << "  CHILDREN" << segment;
         for(int j = 0; j < child_count; ++j) {
@@ -651,7 +695,7 @@ int QResourceRoot::findNode(const QString &_path, const QLocale &locale) const
                                         (tree[offset+1] << 0);
                     offset += 2;
 
-                    if(i == segments.size()-1) {
+                    if(!splitter.hasNext()) {
                         if(!(flags & Directory)) {
                             const short country = (tree[offset+0] << 8) +
                                                   (tree[offset+1] << 0);
diff --git a/src/corelib/io/qsettings.cpp b/src/corelib/io/qsettings.cpp
index 62b4ed5..484e79a 100644
--- a/src/corelib/io/qsettings.cpp
+++ b/src/corelib/io/qsettings.cpp
@@ -2330,6 +2330,10 @@ void QConfFileSettingsPrivate::ensureSectionParsed(QConfFile *confFile,
     \o \c{HKEY_LOCAL_MACHINE\Software\MySoft}
     \endlist
 
+    \note On Windows, for 32-bit programs running in WOW64 mode, settings are
+    stored in the following registry path:
+    \c{HKEY_LOCAL_MACHINE\Software\WOW6432node}.
+
     If the file format is IniFormat, the following files are
     used on Unix and Mac OS X:
 
diff --git a/src/corelib/io/qsettings_p.h b/src/corelib/io/qsettings_p.h
index dd72fd9..93d07e0 100644
--- a/src/corelib/io/qsettings_p.h
+++ b/src/corelib/io/qsettings_p.h
@@ -146,7 +146,7 @@ inline QString QSettingsGroup::toString() const
     return result;
 }
 
-class Q_CORE_EXPORT QConfFile
+class QConfFile
 {
 public:
     ParsedSettingsMap mergedKeyMap() const;
diff --git a/src/corelib/io/qtemporaryfile.cpp b/src/corelib/io/qtemporaryfile.cpp
index 3cfce83..6a9125c 100644
--- a/src/corelib/io/qtemporaryfile.cpp
+++ b/src/corelib/io/qtemporaryfile.cpp
@@ -105,100 +105,100 @@ QT_BEGIN_NAMESPACE
  */
 static int _gettemp(char *path, int *doopen, int domkdir, int slen)
 {
-	char *start, *trv, *suffp;
-	QT_STATBUF sbuf;
-	int rval;
+    char *start, *trv, *suffp;
+    QT_STATBUF sbuf;
+    int rval;
 #if defined(Q_OS_WIN)
     int pid;
 #else
-	pid_t pid;
+    pid_t pid;
 #endif
 
-	if (doopen && domkdir) {
-		errno = EINVAL;
-		return(0);
-	}
-
-	for (trv = path; *trv; ++trv)
-		;
-	trv -= slen;
-	suffp = trv;
-	--trv;
-	if (trv < path) {
-		errno = EINVAL;
-		return (0);
-	}
+    if (doopen && domkdir) {
+        errno = EINVAL;
+        return 0;
+    }
+
+    for (trv = path; *trv; ++trv)
+        ;
+    trv -= slen;
+    suffp = trv;
+    --trv;
+    if (trv < path) {
+        errno = EINVAL;
+        return 0;
+    }
 #if defined(Q_OS_WIN) && defined(_MSC_VER) && _MSC_VER >= 1400
-        pid = _getpid();
+    pid = _getpid();
 #else
-        pid = getpid();
+    pid = getpid();
 #endif
-	while (trv >= path && *trv == 'X' && pid != 0) {
-		*trv-- = (pid % 10) + '0';
-		pid /= 10;
-        }
+    while (trv >= path && *trv == 'X' && pid != 0) {
+        *trv-- = (pid % 10) + '0';
+        pid /= 10;
+    }
 
 #ifndef S_ISDIR
-#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#  define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
 #endif
 
-        while (trv >= path && *trv == 'X') {
-            char c;
-
-            // CHANGE arc4random() -> random()
-            pid = (qrand() & 0xffff) % (26+26);
-		if (pid < 26)
-			c = pid + 'A';
-		else
-			c = (pid - 26) + 'a';
-		*trv-- = c;
-	}
-	start = trv + 1;
-
-	/*
-	 * check the target directory; if you have six X's and it
-	 * doesn't exist this runs for a *very* long time.
-	 */
-	if (doopen || domkdir) {
-		for (;; --trv) {
-			if (trv <= path)
-				break;
-			if (*trv == '/') {
-				*trv = '\0';
+    while (trv >= path && *trv == 'X') {
+        char c;
+
+        // CHANGE arc4random() -> random()
+        pid = (qrand() & 0xffff) % (26+26);
+        if (pid < 26)
+            c = pid + 'A';
+        else
+            c = (pid - 26) + 'a';
+        *trv-- = c;
+    }
+    start = trv + 1;
+
+    /*
+     * check the target directory; if you have six X's and it
+     * doesn't exist this runs for a *very* long time.
+     */
+    if (doopen || domkdir) {
+        for (;; --trv) {
+            if (trv <= path)
+                break;
+            if (*trv == '/') {
+                *trv = '\0';
 #if defined (Q_OS_WIN) && !defined(Q_OS_WINCE)
-                                if (trv - path == 2 && path[1] == ':') {
-                                    // Special case for Windows drives
-                                    // (e.g., "C:" => "C:\").
-                                    // ### Better to use a Windows
-                                    // call for this.
-									char drive[] = "c:\\";
-                                    drive[0] = path[0];
-                                    rval = QT_STAT(drive, &sbuf);
-                                } else
+                if (trv - path == 2 && path[1] == ':') {
+                    // Special case for Windows drives
+                    // (e.g., "C:" => "C:\").
+                    // ### Better to use a Windows
+                    // call for this.
+                    char drive[] = "c:\\";
+                    drive[0] = path[0];
+                    rval = QT_STAT(drive, &sbuf);
+                } else
 #endif
-				rval = QT_STAT(path, &sbuf);
-				*trv = '/';
-				if (rval != 0)
-					return(0);
-				if (!S_ISDIR(sbuf.st_mode)) {
-					errno = ENOTDIR;
-					return(0);
-				}
-				break;
-			}
-		}
-	}
-
-	for (;;) {
-		if (doopen) {
+                    rval = QT_STAT(path, &sbuf);
+                *trv = '/';
+                if (rval != 0)
+                    return 0;
+                if (!S_ISDIR(sbuf.st_mode)) {
+                    errno = ENOTDIR;
+                    return 0;
+                }
+                break;
+            }
+        }
+    }
+
+    for (;;) {
+        if (doopen) {
 #if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) && defined(_MSC_VER) && _MSC_VER >= 1400
-                        if (_sopen_s(doopen, path, QT_OPEN_CREAT|O_EXCL|QT_OPEN_RDWR|QT_OPEN_BINARY
-#ifdef QT_LARGEFILE_SUPPORT
-                                     |QT_OPEN_LARGEFILE
-#endif
-                                     , _SH_DENYNO, _S_IREAD | _S_IWRITE)== 0)
-#else
-#if defined(Q_OS_WINCE)
+            if (_sopen_s(doopen, path, QT_OPEN_CREAT|O_EXCL|QT_OPEN_RDWR|QT_OPEN_BINARY
+#  ifdef QT_LARGEFILE_SUPPORT
+                                       |QT_OPEN_LARGEFILE
+#  endif
+                         , _SH_DENYNO, _S_IREAD | _S_IWRITE)== 0)
+#else // WIN && !CE
+#  if defined(Q_OS_WINCE)
             QString targetPath;
             if (QDir::isAbsolutePath(QString::fromLatin1(path)))
                 targetPath = QLatin1String(path);
@@ -207,72 +207,84 @@ static int _gettemp(char *path, int *doopen, int domkdir, int slen)
 
             if ((*doopen =
                 QT_OPEN(targetPath.toLocal8Bit(), O_CREAT|O_EXCL|O_RDWR
-#else
-                        if ((*doopen =
-                            open(path, QT_OPEN_CREAT|O_EXCL|QT_OPEN_RDWR
-#endif
-#ifdef QT_LARGEFILE_SUPPORT
-                                 |QT_OPEN_LARGEFILE
-#endif
+#  else // CE
+            if ((*doopen =
+                open(path, QT_OPEN_CREAT|O_EXCL|QT_OPEN_RDWR
+#  endif
+#  ifdef QT_LARGEFILE_SUPPORT
+                           |QT_OPEN_LARGEFILE
+#  endif
 #  if defined(Q_OS_WINCE)
-                                                             |_O_BINARY
+                           |_O_BINARY
 #  elif defined(Q_OS_WIN)
-                                 |O_BINARY
+                           |O_BINARY
+#  endif
+#  ifdef O_CLOEXEC
+                           // supported on Linux >= 2.6.23; avoids one extra system call
+                           // and avoids a race condition: if another thread forks, we could
+                           // end up leaking a file descriptor...
+                           |O_CLOEXEC
 #  endif
-                                 , 0600)) >= 0)
+                     , 0600)) >= 0)
+#endif // WIN && !CE
+            {
+#if defined(Q_OS_UNIX) && !defined(O_CLOEXEC)
+                fcntl(*doopen, F_SETFD, FD_CLOEXEC);
 #endif
-
-                                return(1);
-                        if (errno != EEXIST)
-                                return(0);
-                } else if (domkdir) {
+                return 1;
+            }
+            if (errno != EEXIST)
+                return 0;
+        } else if (domkdir) {
 #ifdef Q_OS_WIN
-                    if (QT_MKDIR(path) == 0)
+            if (QT_MKDIR(path) == 0)
 #else
-                    if (mkdir(path, 0700) == 0)
+            if (mkdir(path, 0700) == 0)
 #endif
-                                return(1);
-                        if (errno != EEXIST)
-                                return(0);
-            }
+                return 1;
+            if (errno != EEXIST)
+                return 0;
+        }
 #ifndef Q_OS_WIN
-            else if (QT_LSTAT(path, &sbuf))
-			return(errno == ENOENT ? 1 : 0);
+        else if (QT_LSTAT(path, &sbuf))
+            return (errno == ENOENT) ? 1 : 0;
 #else
-            if (!QFileInfo(QLatin1String(path)).exists())
-                return 1;
+        if (!QFileInfo(QLatin1String(path)).exists())
+            return 1;
 #endif
 
-                /* tricky little algorwwithm for backward compatibility */
-                for (trv = start;;) {
-                        if (!*trv)
-                                return (0);
-                        if (*trv == 'Z') {
-                                if (trv == suffp)
-                                        return (0);
-                                *trv++ = 'a';
-                        } else {
-                                if (isdigit(*trv))
-                                        *trv = 'a';
-                                else if (*trv == 'z')	/* inc from z to A */
-                                        *trv = 'A';
-                                else {
-                                        if (trv == suffp)
-                                                return (0);
-                                        ++*trv;
-                                }
-                                break;
-                        }
+        /* tricky little algorwwithm for backward compatibility */
+        for (trv = start;;) {
+            if (!*trv)
+                return 0;
+            if (*trv == 'Z') {
+                if (trv == suffp)
+                    return 0;
+                *trv++ = 'a';
+            } else {
+                if (isdigit(*trv))
+                    *trv = 'a';
+                else if (*trv == 'z') /* inc from z to A */
+                    *trv = 'A';
+                else {
+                    if (trv == suffp)
+                        return 0;
+                    ++*trv;
                 }
+                break;
+            }
         }
-        /*NOTREACHED*/
+    }
+    /*NOTREACHED*/
 }
 
+#ifndef Q_WS_WIN
 static int qt_mkstemps(char *path, int slen)
 {
-        int fd = 0;
-        return (_gettemp(path, &fd, 0, slen) ? fd : -1);
+    int fd = 0;
+    return (_gettemp(path, &fd, 0, slen) ? fd : -1);
 }
+#endif
 
 //************* QTemporaryFileEngine
 class QTemporaryFileEngine : public QFSFileEngine
@@ -282,6 +294,8 @@ public:
     QTemporaryFileEngine(const QString &file) : QFSFileEngine(file) { }
     ~QTemporaryFileEngine();
 
+    void setFileName(const QString &file);
+
     bool open(QIODevice::OpenMode flags);
     bool remove();
     bool close();
@@ -292,6 +306,13 @@ QTemporaryFileEngine::~QTemporaryFileEngine()
     QFSFileEngine::close();
 }
 
+void QTemporaryFileEngine::setFileName(const QString &file)
+{
+    // Really close the file, so we don't leak
+    QFSFileEngine::close();
+    QFSFileEngine::setFileName(file);
+}
+
 bool QTemporaryFileEngine::open(QIODevice::OpenMode openMode)
 {
     Q_D(QFSFileEngine);
diff --git a/src/corelib/io/qtextstream.cpp b/src/corelib/io/qtextstream.cpp
index 73408dc..612d7f7 100644
--- a/src/corelib/io/qtextstream.cpp
+++ b/src/corelib/io/qtextstream.cpp
@@ -67,8 +67,10 @@ static const int QTEXTSTREAM_BUFFERSIZE = 16384;
     \snippet doc/src/snippets/code/src_corelib_io_qtextstream.cpp 1
 
     Note that you cannot use QTextStream::atEnd(), which returns true when you
-    have reached the end of the data stream, with stdin.
-
+    have reached the end of the data stream, with stdin. The reason for this is
+    that as long as stdin doesn't give any input to the QTextStream, \c atEnd()
+    will return true even if the stdin is open and waiting for more characters.
+    
     Besides using QTextStream's constructors, you can also set the
     device or string QTextStream operates on by calling setDevice() or
     setString(). You can seek to a position by calling seek(), and
@@ -559,13 +561,8 @@ bool QTextStreamPrivate::fillReadBuffer(qint64 maxBytes)
     if (!codec || autoDetectUnicode) {
         autoDetectUnicode = false;
 
-        if (bytesRead >= 4 && ((uchar(buf[0]) == 0xff && uchar(buf[1]) == 0xfe && uchar(buf[2]) == 0 && uchar(buf[3]) == 0)
-                               || (uchar(buf[0]) == 0 && uchar(buf[1]) == 0 && uchar(buf[2]) == 0xfe && uchar(buf[3]) == 0xff))) {
-            codec = QTextCodec::codecForName("UTF-32");
-        } else if (bytesRead >= 2 && ((uchar(buf[0]) == 0xff && uchar(buf[1]) == 0xfe)
-                                      || (uchar(buf[0]) == 0xfe && uchar(buf[1]) == 0xff))) {
-            codec = QTextCodec::codecForName("UTF-16");
-        } else if (!codec) {
+        codec = QTextCodec::codecForUtfText(QByteArray::fromRawData(buf, bytesRead), 0);
+        if (!codec) {
             codec = QTextCodec::codecForLocale();
             writeConverterState.flags |= QTextCodec::IgnoreHeader;
         }