It's completely unnecessary, since QFileInfo will query the file system
anyway and that has a much better view of what is normalized and what
isn't. More importantly, this fixes the mistake in failing to normalize
properly in removePaths(), which removed the ending slash of a root
directory such as "C:\\". That caused the path to become "C:", which
QFileInfo interprets as "current path on drive C:".
[ChangeLog][QtCore][QFileSystemWatcher] Fixed a bug that prevented
removePaths() from removing the root of a drive on Windows.
Fixes: QTBUG-110986
Pick-to: 5.15 6.2 6.4 6.5
Change-Id: I9671dee8ceb64aa9b9cafffd17419b6d69670876
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
The test needs investigation. Skip it for now so that we can enable
CI for WASM but leave a note to investigate it.
Task-number: QTBUG-109954
Change-Id: I9448312c2c16ec4f31279dcbe4e2213681cabe8a
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
The code for the QMetaMethod queuedConnectionTypes overload relied on
QMetaMethod::parameterMetaType and QMetaType::flags() to detect whether
we're dealing with a pointer (and then use the VoidStar metatype instead).
However, if the type was incomplete when the slot was defined, and the
type was not registered when connect was called, we would not find a
metatype for the argument.
However, in that case we might still be able to handle the method, by
checking whether the type name of the arguments ends with a "*".
This patch does that, fixing a regression from 5.15.
Pick-to: 6.5 6.4 6.2
Fixes: QTBUG-108537
Change-Id: I54cc48a3343444480ab9094fe1ebaaa5aa75cee0
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
With the introduction of a new atomic variable the users should use the
class QNtfsPermissionCheckGuard or the helper functions
- qEnableNtfsPermissionChecks()
- qDisableNtfsPermissionChecks()
- qAreNtfsPermissionChecksEnabled()
to enable/disable permission checks instead of manually managing the
variable qt_ntfs_permission_lookup (which is a non-atomic variable and
as such prone to data races).
Also moved the variable qt_ntfs_permission_lookup to qfile.h to make it
clash with the user-side declarations the documentation suggested to
use (and it is probably also a better fit thematically anyway).
[ChangeLog][QtCore][Deprecation Notice] Deprecated the variable
qt_ntfs_permission_lookup to avoid race conditions while enabling or
disabling permission checks. It can be replaced by the RAII class
QNtfsPermissionCheckGuard or with the functions
qEnableNtfsPermissionChecks(), qDisableNtfsPermissionChecks() and
qAreNtfsPermissionChecksEnabled().
Fixes: QTBUG-105804
Change-Id: I93a563864ffb3f9945551c34004d8ca393603b25
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
I don't begin to understand the semantics of the trackers here, but
whatever they are, they break with the fallback std::swap() 3-moves
implementation and lose track of alive objects, so provide an ADL swap
that does the right thing.
Amends dd58ddd5d9 (I think).
Pick-to: 6.5 6.4 6.2 5.15
Change-Id: I1cd49c95dca2d103a26c2c7ac0a896929135a6c8
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
A RAII wrapper around Qt::{begin,end}PropertyUpdateGroup().
[ChangeLog][QtCore][QScopedPropertyUpdateGroup] New RAII class
wrapping Qt::beginPropertyUpdateGroup() and
Qt::endPropertyUpdateGroup().
Fixes: QTBUG-110710
Change-Id: If2619e9584dd9d57985d63e3babca75421499ab9
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
And don't use toLower() as QString::compare() and QCollator::compare()
can compare case-insensitively.
Change-Id: I999d787cb77e10a101da75d1bf0a5baf096a5c9b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
I.e. don't detach in the replace() overloads that delegate to
replace_helper() if this string is shared, instead create a new string
and copy characters from this string to it, along with the "after"
string, then swap it with this.
Do the same thing if "before" is shorter than "after" and there isn't
enough capacity to do the replacement without reallocating.
Use std::copy* and std::move*, which will both fallback to
memmove/memcpy, but they have C++ API, which is more readable.
[ChangeLog][QtCore][QString] Using replace() on a currently shared
QString is now done more efficiently
Task-number: QTBUG-106184
Change-Id: If74ffa1ed47636dc23d543d6dc123d8f2b21d537
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Utf8 data is variable-width, ideally we want to write characters at most
once, so insert directly into the QString buffer if inserting at the end
(by delegating to append(QUtf8SV)), and use an intermediate buffer to
hold the converted data before inserting anywhere else.
Task-number: QTBUG-108546
Change-Id: Iabfaeecaf34a1ba11946bd67951e69a45d954d6d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Instead of detaching when the string is shared, or if the the insertion
would cause a reallocation, create a new string and copy characters to
it as needed, then swap it with "this" string. This is more efficient
than detaching which would copy the whole string before inserting, as
some characters would be copied multiple times.
Use detachAndGrow(), otherwise QStringBuilder unitests fail:
PASS : tst_QStringBuilder1::initTestCase()
FAIL! : tst_QStringBuilder1::scenario() 'prepends < max_prepends' returned FALSE. ()
Loc: [tests/auto/corelib/text/qstringbuilder/qstringbuilder1/stringbuilder.cpp(61)]
PASS : tst_QStringBuilder1::cleanupTestCase()
The issue is that now when inserting, if the string is going to
reallocated, we create a new string, so the freeSpaceAtBegin()
optimization doesn't work the same way.
void checkItWorksWithFreeSpaceAtBegin(const String &chunk, const Separator &separator)
{
// GIVEN: a String with freeSpaceAtBegin() and less than chunk.size() freeSpaceAtEnd()
String str;
int prepends = 0;
const int max_prepends = 10;
while (str.data_ptr().freeSpaceAtBegin() < chunk.size() && prepends++ < max_prepends)
str.prepend(chunk);
QVERIFY(prepends < max_prepends);
...
...
each str.prepend() would have reallocated.
[ChangeLog][QtCore][QString] Calling insert() on a currently shared
string is now done more efficiently.
Task-number: QTBUG-106186
Change-Id: I07ce8d6bde50919fdc587433e624ace9cee05be8
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
If the object is shared, instead of detaching, copy characters from
"this" to a new object except for the chacters that would be erased,
this is more efficient than detaching (which would copy the whole data
then erase).
- Extend tst_QString::removeIf() to catch a corner-case (that I saw
with tst_QByteArray::removeIf()).
- Add q_uninitialized_remove_copy_if, which works like
std::remove_copy_if but for uninitialized memory like
q_uninitialized_relocate_n (but copies rather than relocates/moves).
With the same static_assert from q_relocate_overlap_n that the type
destructor is non-throwing.
Added q_uninitialized_remove_copy_if in this commit rather than a
separate one so that it's unittested by its usage in eraseIf().
[ChangeLog][QtCore][QString, QByteArray] Removing characters from a
currently shared string or byte array is now done more efficiently
Task-number: QTBUG-106181
Task-number: QTBUG-106183
Change-Id: Icc0ed31633cef71d482b97e0d2d20d763163d383
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
A QVariant(QString) was not convertible to an enum not registered with
Q_ENUM() which worked fine in Qt5.
The same problem exists for QVariant(enum) to QString.
Fix it by not bailing out when no metatype for the enum was found and
try to convert it to a qlonglong instead (which is then correctly
converted to the enum type).
Fixes: QTBUG-109744
Pick-to: 6.5 6.4
Change-Id: Ie7bb016a860455b69508f0f46b36474c9c294f3a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Implemented assign() methods for QVarLengthArray to align
with the criteria of std::vector, addressing the previously
missing functionality.
Reference:
https://en.cppreference.com/w/cpp/container/vector/assign
[ChangeLog][QtCore][QVarLengthArray] Added assign().
Fixes: QTBUG-106200
Change-Id: If671069808ff561b0f4c77b6c7f7aca360a0c663
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
This fixes a use-after-free in QPropertyDelayedNotifications::notify.
Before this patch, evaluateBindings or a notify from a property index
might have caused the originalBindingData to become reallocated.
However, at that point, we've already restored the original bindingData
in evaluateBindings, so we won't track updates, and thus won't adjust
originalBindingStatus, which will then point to already freed data.
To remedy this, we no longer do the notification with data fetched from
originalBindingData, but instead use the information we have in the
proxyData.
We also need to enure that referenced bindings do not get deleted; for
that we keep the PendingBindingObserverList alive for the whole duration
of the endPropertyUpdateGroup.
As we now have the PendingBindingObserverList, we use it for the
notification logic, and only notify change handlers in
QPropertyDelayedNotifications::notify. That will allow a follow-up
cleanup of QPropertyObserverPointer::notify, and aligns the logic for
grouped updates with the logic for "nornal", non-grouped updates.
Amends f1b1773d0a.
Task-number: QTBUG-110899
Pick-to: 6.5 6.4 6.2
Change-Id: Iae826e620d9614b7df39d86d8a28c48c8a5c4881
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
That use case for the class never materialized, and it was actually
meant for internal use. However, we put it into the public header, so
we cannot remove it (and while undocumented, someone actually used it at
some point, compare e4d62651c2).
Mark it as deprecated instead so that it can be finally be removed in Qt
7.
Change-Id: I058c5831a44610121fbec6eaddebd8b33d4a16c9
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
qt_ntfs_permission_lookup is a global, non-atomic variable which
could cause problems in case of multiple threads. Introduce a
new atomic variable to handle permission lookups but instead of
manual incrementation/decrementation, implement a class to manage
the variable.
Since the atomic variable is not directly available to the user,
implement helper functions to increase/decrease/check the status
of the variable.
Task-number: QTBUG-105804
Change-Id: If6cbcdd653c7f50ad9853a5c309e24fdeb520788
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
This addresses two different issues:
- Firstly, we were casting the resolved binding data pointer to
QPropertyProxyBindingData, instead of the d_ptr of
QPropertyBindingData. Fix this by introducing a helper function,
and consistently using it to access the proxy data.
- Secondly, we were not resetting the originalBindingData when the
pointed to object was destoyed. Fix that, too.
Pick-to: 6.5 6.4 6.2
Task-number: QTBUG-110899
Change-Id: I7691c9df5cc26e761f6b0e5f16d152f7f2183208
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
New languages (and one local for each) added with v42
- Haryanvi
- Moksha
- Northern Frisian
- Obolo
- Pijin
- Rajasthani
- Toki Pona
It also appears that Canada has changed its date format. Modify the
relevant test case to reflect this change.
Task-number: QTBUG-110333
Pick-to: 6.5
Change-Id: Ia8975c2866cd54c9e565543d05bacd52f4987909
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
The new name better matches the names of existing functions there.
A comment on the old code noted that such a move should really be
done, so as to correctly share the environment-mutex locking.
In the process, move the (now three) time-related internal functions
from qglobal_p.h to a new qtenvironmentvariables_p.h since that's the
natural place for them given where they're defined (and the fact that
they're for internal use only).
Change-Id: Ib028baebaf31a806a2c0c97caaaba0a466c11cea
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
We must check that the path is an actual file on the filesystem before
using native APIs. This regression was introduced by commit
047d8f36de.
[ChangeLog][QtCore][QMimeDatabase] Fixed a regression from 6.4.0 that
made certain QMimeDatabase functions that inspected file contents to fail
on Unix systems, if the file was not a native file (e.g., a Qt resource).
Fixes: QTBUG-110707
Pick-to: 6.4 6.5
Change-Id: I570832c9ac8b4e03bde8fffd173f7b4c6b164192
Reviewed-by: Igor Kushnir <igorkuo@gmail.com>
Reviewed-by: David Faure <david.faure@kdab.com>
This test is calling mimeTypeForFileNameAndData(), so it doesn't
actually use the files.
Change-Id: I570832c9ac8b4e03bde8fffd173f77f138ef3434
Reviewed-by: Igor Kushnir <igorkuo@gmail.com>
Reviewed-by: David Faure <david.faure@kdab.com>
The QChar::toLatin1() args in:
str.replace(index, len, QChar(after[0]).toLatin1())
s2.replace(ch.toLatin1(), after, cs)
will be converted to QChar, so it's always calling the same QString
overload, I argue that we're not testing QChar implicit conversions
here.
Change-Id: I3962cab2b34684f970638575e6bd15dd1067a8c6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The fact that read-access is always included makes a bool readWrite
property a little awkward to document and explain. An AccessMode enum
with values ReadOnly and ReadWrite is much easier, and will also lend
itself more easily as a constructor argument than a boolean.
Found in API review.
Pick-to: 6.5
Change-Id: I4f20dbe9f19c7bdb52248a6e544e36d731d5a2ee
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
This is a continuation of commit 5c9d671bfb.
[ChangeLog][QtCore][QStandardPaths] Improved conformance to the
Freedesktop basedir spec by ignoring any relative paths in XDG_*
environment variables.
Fixes: QTBUG-58043
Change-Id: I7c34143ced97d6d3de6ecbf13bccf9e935462d1e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
When the match finds a surrogate pair as the first true Unicode character,
then we need to skip both code units of the pair in order to restart the
search. PCRE2 does not allow us to search for individual UTF-16 code
units.
That actually means that counting "." gives us the count of Unicode
characters.
Fixes: QTBUG-110586
Pick-to: 5.15 6.2 6.4 6.5
Change-Id: I194d0a32c94148f398e6fffd173d5b5be8137e19
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
If the string is shared, instead of detaching, create a new string and
copy the characters from this string, replacing the ones matching "before"
with "after", to the new string.
Change-Id: I2c33690230d40f3121e60e242666460559258b7b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
TIME_NOSECONDS doesn't really switches to short time format,
just removes the seconds from long time format
Fixes: QTBUG-110627
Pick-to: 6.5 6.4 6.2 5.15
Change-Id: Ie799958f3942c657f00bc8196588258661ddc1d9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Says Clang 15:
tst_qurlquery.cpp:193:11: warning: explicitly moving variable of type 'QUrlQuery' to itself [-Wself-move]
moved = std::move(moved);
~~~~~ ^ ~~~~~
It's amazing how little it takes to throw this warning off guards:
just use an alising reference instead of the same variable. Makes you
wonder whether the time spent on detecting such trivialities in the
compiler is really well spent.
Amends fc8dad2f10.
Pick-to: 6.5
Task-number: QTBUG-109842
Change-Id: I165af2a786aa0ba28b8dcd039a500f3494bc29a9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Instead of the System V one. An important difference is that
QSharedMemory does not clean after itself.
Updated the configure summary output to include this information.
Drive-by update to sorting order and I removed cpp-winrt from the
listing because there's a warning at the end if it is not set.
Change-Id: I12a088d1ae424825abd3fffd171e0eadcfd33426
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
If a previous test in the same process or previously leaked a shared
memory or semaphore handle, tests could fail and cascade down. They
could also interfere with one another. So prevent this issue by
assigning a monotonically-increasing identifier per test function or row
tested and improving how we clean up those we did create.
This shows we need the API to explicitly clean up.
Change-Id: I12a088d1ae424825abd3fffd171db61d6b68a411
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
And deprecate the non-native key support API. Qt 7 may not even store
the old, non-native key.
Documentation in a new commit, when the dust settles.
Drive-by updates to the tst_QSharedMemory::attach row names, to fix
grammar and remove spaces and apostrophe.
Change-Id: I12a088d1ae424825abd3fffd171d3025c77f94d2
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
And deprecate the non-native key support API. Qt 7 may not even store
the old, non-native Qt.
Documentation in a new commit, when the dust settles.
Change-Id: I12a088d1ae424825abd3fffd171d2b549eeed040
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Common to both QSharedMemory and QSystemSemaphore, this will hold the
native key and will replace the concept of non-native key in those
classes.
Change-Id: Id8d5e3999fe94b03acc1fffd171c03197aea6016
Reviewed-by: Nicholas Bennett <nicholas.bennett@qt.io>
This removes the second portion of the #if mess of shared code between
QSharedMemory and QSystemSemaphore for SystemV.
Change-Id: Id8d5e3999fe94b03acc1fffd171c073c2873206e
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
It's not a lot of files, but it's actually more in the same dir than
mime/ does right now. I'm about to add two more files, though I'll also
merge a few more later.
Change-Id: Id8d5e3999fe94b03acc1fffd171bfe2ea36a35a7
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
The growBy() function takes the _increment_ of the size(), so needs to
add size() to increment for the call to realloc().
Add a test which hangs (vanilla build) or explodes (valgrind build)
without the fix.
Amends 26b227e128.
Done-with: Eirik Aavitsland <eirik.aavitsland@qt.io>
Pick-to: 6.5 6.4
Fixes: QTBUG-110412
Change-Id: I7ea91342fdcb779825c88013a3f86ba6d90ef530
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
It wasn't added when this class was created in 5.0 because we couldn't
add move constructors and still keep the ability to compile Qt with
C++98 compilers. We've forgot to correct this shortcoming since 5.6.
Fixes: QTBUG-109842
Pick-to: 6.5
Change-Id: I69ecc04064514f939896fffd17376b8243b73c52
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
If an object had elements and then was emptied, it will have a non-null
d pointer, which wasn't taken into account in the comparison.
Fixes: QTBUG-109840
Pick-to: 6.5 6.4 6.2
Change-Id: I69ecc04064514f939896fffd17376aa18184653c
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This got lost during the QStringView port that happend in Qt 6.0
(commit 548dcef089) because
QString::operator+=(QStringView) does not copy the nullness of the right
side, whereas QString::operator+=(const QString &) does.
Pick-to: 6.2 6.4 6.5
Fixes: QTBUG-84315
Change-Id: Ide4dbd0777a44ed0870efffd17399b772d34fd55
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Despite being move-only, std::vector<unique_ptr> advertizes
is_copyable:
https://quuxplusone.github.io/blog/2020/02/05/vector-is-copyable-except-when-its-not/
Our combined reallocation and resizing function, reallocate_impl(),
runs afoul of this when it uses std::is_copyable in a constexpr-if to
implement resize(n, v) without running into problems with move-only
types: the trait is true, but actual instantation runs into a
static_assert in the STL implementation.
To fix, move the problematic resize functionality out of
reallocate_impl() and into the resp. resize_impl overloads. The shrink
functionality remains in reallocate_impl(), because there are many
more users, and it only requires destructible<T>, which isn't
constraining at all.
Amends a00a1d8806.
Fixes: QTBUG-109745
Pick-to: 6.5 6.4
Change-Id: Ibc5b9cf5375108eb3d8f6c8a16d4fd02dadd73b1
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
As discussed in API review, the default-constructed T() returned from
a mismatched data<T>() call is indistinguishable from a real T with
default state.
To make them distinguishable, return optional<T>. Call the new
function value<T>(), mimicking QVariant::value<T>(), and suggested in
API review, because data() is usually used to return raw pointers, not
values.
Remove the qWarning() on requestedType and actualType mismatch, as the
new function can be used in std::get_if/dynamic_cast-like if-then-else
chains, in which failure is part of the normal operation, and a
warning message misplaced:
if (auto loc = perm.value<QLocationPermission>())
~~~ use *loc ~~~
else if (auto con = perm.value<QContactsPermission>())
~~~ use *con ~~~
~~~ etc ~~~
Pick-to: 6.5
Change-Id: I799a58e930307323ebce8f9ac50a42455e9c017f
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
