--- a/src/corelib/codecs/qtextcodec.cpp Mon May 03 13:17:34 2010 +0300
+++ b/src/corelib/codecs/qtextcodec.cpp Fri May 14 16:40:13 2010 +0300
@@ -110,6 +110,7 @@
(QTextCodecFactoryInterface_iid, QLatin1String("/codecs")))
#endif
+
static char qtolower(register char c)
{ if (c >= 'A' && c <= 'Z') return c + 0x20; return c; }
static bool qisalnum(register char c)
@@ -224,6 +225,19 @@
Q_GLOBAL_STATIC(QTextCodecCleanup, createQTextCodecCleanup)
+bool QTextCodec::validCodecs()
+{
+#ifdef Q_OS_SYMBIAN
+ // If we don't have a trap handler, we're outside of the main() function,
+ // ie. in global constructors or destructors. Don't use codecs in this
+ // case as it would lead to crashes because we don't have a cleanup stack on Symbian
+ return (User::TrapHandler() != NULL);
+#else
+ return true;
+#endif
+}
+
+
#if defined(Q_OS_WIN32) || defined(Q_OS_WINCE)
class QWindowsLocalCodec: public QTextCodec
{
@@ -684,6 +698,14 @@
if (all)
return;
+#ifdef Q_OS_SYMBIAN
+ // If we don't have a trap handler, we're outside of the main() function,
+ // ie. in global constructors or destructors. Don't create codecs in this
+ // case as it would lead to crashes because of a missing cleanup stack on Symbian
+ if (User::TrapHandler() == NULL)
+ return;
+#endif
+
#ifdef Q_DEBUG_TEXTCODEC
if (destroying_is_ok)
qWarning("QTextCodec: Creating new codec during codec cleanup");
@@ -986,6 +1008,9 @@
#endif
setup();
+ if (!validCodecs())
+ return 0;
+
static QHash <QByteArray, QTextCodec *> cache;
if (clearCaches & 0x1) {
cache.clear();
@@ -1027,6 +1052,9 @@
#endif
setup();
+ if (!validCodecs())
+ return 0;
+
static QHash <int, QTextCodec *> cache;
if (clearCaches & 0x2) {
cache.clear();
@@ -1074,6 +1102,10 @@
setup();
QList<QByteArray> codecs;
+
+ if (!validCodecs())
+ return codecs;
+
for (int i = 0; i < all->size(); ++i) {
codecs += all->at(i)->name();
codecs += all->at(i)->aliases();
@@ -1112,6 +1144,10 @@
setup();
QList<int> codecs;
+
+ if (!validCodecs())
+ return codecs;
+
for (int i = 0; i < all->size(); ++i)
codecs += all->at(i)->mibEnum();
@@ -1165,6 +1201,9 @@
QTextCodec* QTextCodec::codecForLocale()
{
+ if (!validCodecs())
+ return 0;
+
if (localeMapper)
return localeMapper;