This is extremely useful, since the most common action after a failed
compare-and-swap is to loop around, trying again with the current
value as found in memory.
Code currently written as:
do {
Type value = atomic.load();
...
} while (!atomic.testAndSetRelaxed(value, desired));
Becomes:
Type value = atomic.load();
do {
...
} while (!atomic.testAndSetRelaxed(value, desired, value));
In most CPU architectures, the value that was found in memory is known
to the compare-and-swap code, so this is more efficient than the
previous code. In architectures where the value is not known, the new
code is no worse than before.
The implementation sometimes modified an existing function, sometimes
it added a new one, depending on whether more registers were needed in
the assembly (like ARMv6-7), the code became more complex (ARMv5), the
optimizer failed (C++11), or it was just plain equivalent (MIPS).
Change-Id: I7d6d200ea9746ec8978a0c1e1969dbc3580b9285
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This implementation is based on GCC's implementation of std::hash<FP>, but only
to the extent of checking for zero before hashing the bits. The bit hasher is
the Qt one; I didn't even look what GCC uses.
The check against 0.0 is mandated by the requirement to have
\forall x,y: x == y => qHash(x) == qHash(y)
which would be violated for x = 0.0 and y = -0.0 if we only hashed the bits.
Implemented out-of-line to avoid potential FP-comparison warnings, as well
as to be able to use the file-static hash() functions, which gets inlined
unlike qHashBits(), which cannot be.
[ChangeLog][QtCore][QHash/QSet] Allowed to use float, double and long double
as QHash/QSet keys.
Change-Id: I38cec4afb860f17e9f8be7b67544e58b330f8fff
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
This test can assume that the QObject::signalsBlocked property works as
advertized, so just check signalsBlocked() in repsonse to QSignalBlocker
manipulations.
Change-Id: I99e4ef9c4ed05c3840233d92a587636d2d78f59a
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Change 85e57653 caused a compile error for code that does
Q_DECLARE_LOGGING_CATEGORY(cat);
//..
qCDebug(cat()) << // ...
error: C3848: expression having type 'const QLoggingCategory' would lose
some const-volatile qualifiers in order to call 'QLoggingCategory
&QLoggingCategory::operator ()(void)'
This is a regression from Qt 5.2. Fix the error by adding a const version
of operator()().
Change-Id: I2fb04f2e155962adee0f98089fc5a159000bef56
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Added basic functionality to socket for WinRT. Even though not
all auto tests pass yet, this patch can be seen as a foundation
for upcoming work in this area. Reading from and writing to TCP
socket works and one can listen for tcp connections.
Change-Id: Id4c25ba1c7187ed92b6368c785c4f62837faded7
Reviewed-by: Andrew Knight <andrew.knight@digia.com>
Conversion from UTC to local time will result in same datetime value,
if local time is in UTC.
Change-Id: Icd4ea57cb46cc97bcc8fce4f4e579bf64a4d4b10
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
It was not possible to get the actual process ID (in a cross-platform
manner) from QProcess, as the user would need to handle the returned
typedef (Q_PID) differently on Unix and Windows.
On Unix Q_PID is the actual process ID, but on Windows it's a pointer
to a PROCESS_INFORMATION structure, which among other fields contains
the process ID. Instead of returning a pointer on Windows,
QProcess::processId() will return the actual process ID on both Windows
and Unix.
[ChangeLog][QtCore][QProcess] Added processId() to QProcess. This
function will, unlike pid(), return the actual process identifier on
both Window and Unix.
Task-number: QTBUG-26136
Change-Id: I853ab721297e2dd9cda006666144179a9e25b73d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Initial submission of a new class QByteArrayList with the
purpose of aggregating and then joining QByteArray instances.
[ChangeLog][QtCore] Added new QByteArrayList class.
Change-Id: I2a9dc71ff7aadb19ebc129a0d47ac8cd33895924
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Allow configuration of logging rules from outside of the application,
either through a configuration file (.config/QtProject/qtlogging.ini),
or through a file specified by a QT_LOGGING_CONF environment
variable.
The logging rules from the different sources are concatenated: First
the rules from QtProject/qtlogging.ini are applied, then
QLoggingCategory::setLoggingRules(), finally from the environment.
This allows an application to overwrite/augment the system wide rules,
and in turn that can be tailored for a specific run by setting a
configuration in the environment variable.
[ChangeLog][QtCore][Logging] The logging framework can now be configured
with an .ini file.
Change-Id: I442efde1b7e0a2ebe135c6f6e0a4b656483fe4b1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Passing a constructor as second argument to foreach didn't work when
building with gcc.
For MSVC this already worked as a different foreach implementation is
used.
Change-Id: Id98444c699b4cebc14ea62076c5f7cba33ffb824
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
The debug output of all categories will be visible by default,
except from the "qt.*" categories. "qt.*" categories are private
and their default debug output will be hidden.
[ChangeLog][QtCore][Logging] Enable qCDebug's for all categories except qt one's
Change-Id: Ibe147c8bbe0835a63b3de782288b9c3251321d8f
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
The basedir xdg spec says:
"All paths set in these environment variables must be absolute.
If an implementation encounters a relative path in any of these variables it
should consider the path invalid and ignore it."
Therefore we ignore relative paths including the empty string.
Change-Id: I8f779b78981018051b16de23b2514f2e62b7ab39
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The slot object was deleted after the mutex was relocked, which caused
a deadlock in case the functor destructor locked the same mutex again.
Change-Id: I5b4fb22fdb4483f91c89915872bfd548c31b0eea
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Code units 0xD800 .. 0xDFFF are not UCS-4, so we can't happily return them.
Instead, if we encounter a stray surrogate, replace it with 0xFFFD, which
is what Unicode recommends anyhow.
References:
§3.9 Unicode Encoding Forms
D76: Unicode scalar value: Any Unicode code point except high-surrogate
and low surrogate code points.
As a result of this definition, the set of Unicode scalar values consists
of the ranges 0 to D7FF_16 and E000_16 to 10FFFF_16, inclusive.
[...]
UTF-32 encoding form: The Unicode encoding form that assigns each Unicode
scalar value to a single unsigned 32-bit code unit with the same numeric
value as the Unicode scalar value.
§ C.2 Encoding Forms in ISO/IEC 10646
UCS-4. UCS-4 stands for “Universal Character Set coded in 4 octets.” It is
now treated simply as a synonym for UTF-32, and is considered the canonical
form for representation of characters in 10646.
§ 3.9 Unicode Encoding Forms (Best Practices for Using U+FFFD)
and
§ 5.22 Best Practice for U+FFFD Substitution
Whenever an unconvertible offset is reached during conversion of a code
unit sequence:
1. The maximal subpart at that offset should be replaced by a single
U+FFFD.
2. The conversion should proceed at the offset immediately after the
maximal subpart.
[...]
Whenever an unconvertible offset is reached during conversion of a code
unit sequence to Unicode:
1. Find the longest code unit sequence that is the initial subsequence of
some sequence that could be converted. If there is such a sequence, replace
it with a single U+FFFD; otherwise replace a single code unit with a single
U+FFFD.
2. The conversion should proceed at the offset immediately after the
subsequence which has been replaced.
[ChangeLog][QtCore][QString] QString::toUcs4 now does not return invalid
UCS-4 code units belonging to the surrogate range (U+D800 to U+DFFF)
when the QString contains malformed UTF-16 data. Instead, U+FFFD
is returned in place of the malformed subsequence.
Change-Id: I19d7af03e749fea680fd5d9635439bc9d56558a9
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
That commit made QString::toXxx (8-bit) functions use C++11 ref
qualifiers, so we need to match it here.
Change-Id: I45b50464d36f858d012b12e0cb511aae347ddb6f
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
UCS-4 iterator over a QString.
Kept private for now so we can still work on the API.
Done-with: Thiago
Change-Id: I377f8bb1921e591ee3292c08c3e097fb6bc7f0c4
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Because they make sense. I'm even thinking that the char16_t version
should get a QString implicit constructor. Maybe both encodings.
Change-Id: Ifffc61dd890795fbbbd5f7cb5efb3e6287d1270e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
This fixes a serious regression from
7d72516b52.
[ChangeLog] QFileSelector: the identifier for OS X has been changed back
to 'osx' from 'mac', and 'mac' and 'darwin' have now been added as
selectors for Darwin OS (which is the base of both OS X and iOS).
Task-number: QTBUG-35073
Change-Id: I83183e34c5a697338cc1ddcac33a41bd379ded12
Reviewed-by: Alan Alpert <aalpert@blackberry.com>
When changing a filter so that a previously empty proxy model becomes
populated sorting was not applied correctly.
This was caused by using mapToSource for getting source_sort_column
from proxy_sort_column. For an empty proxy model this won't work because
no valid proxy index can be created in this case.
We now directly use the root index column mapping instead by doing
essentially the same as QSortFilterProxyModelPrivate::proxy_to_source
but without the sanity checks needed for external use.
The sorting feature of QSortFilterProxyModel has always assumed that
the number of columns is specified by columnCount(QModelIndex()) so
the behavior doesn't change.
[ChangeLog][QtCore][QSortFilterProxyModel] Fixed sorting when a
previously empty proxy model becomes populated because of a change in
the filter.
Task-number: QTBUG-30662
Change-Id: I21322122e127889dfadc02f838f0119ed322dcab
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
introduced by b0b22e8d49 .
Change-Id: Ia57331ce9373a414f2bc56962412f20ef83bd7ca
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
This simplifies the code a lot and avoids silly mistakes where a
specific integer type is missing (such as char16_t).
Change-Id: Id91dfd1919e783e0a9af7bfa093ca560a01b22d1
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
This aimed to disctinct joining types "L", "T", and "U" from just "U".
Unicode 6.3.0 has introduced a character with joining type "L" and
Unicode 7.0 will add a few more characters of joining type "L", so
we'll have to deal with it anyways.
[ChangeLog][QtCore][QChar] Added JoiningType enum and joiningType()
method that deprecates the old QChar::Joining enum and joining() method.
Change-Id: I4be3a3f745d944e689feb9b62d4ca86d1cf371b0
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
q_func() which is declared in Q_DECLARE_PUBLIC is usually private.
We should use q_ptr directly in QObjectPrivate::connect, otherwise
it does not compile when trying to access the private q_func
Change-Id: I235165a0994327102dbb31c390c2cafdffe806dc
Reviewed-by: Kurt Pattyn <pattyn.kurt@gmail.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
The support for QArrayData variadic arguments without C++11 for GCC
has been removed in commit 69478da0f0 . Change the autotest to reflect
that, too.
Change-Id: I40468f5d67cb2db553fd7a7d5b604f46403ac538
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Even if the system is not under high load, this test can generate 4
updates on Windows. This is seems to be because the timer actually
triggers before its supposed to (sometimes the second start() triggers
an update right before the animation is done (at timestamp 399 for
instance), forcing it to generate yet another timer event in order to
reach the end)).
Under high load conditions, too many things can break this test,
usually it finishes even before the pause(), causing the
QVERIFY(animation.state() == QAbstractAnimation::Paused);
to fail.
Change-Id: Id94c0d16656675bc6165b7795f3c41a30616a3ba
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Allows us to sanity check the iOS build in the CI.
Change-Id: I16f9bfafef3988dcab6efd3155503ca0d0b4d1d8
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Add support for using qCDebug and friends in the 'printf style' way.
This allows an almost mechanical conversion of existing qDebug, qWarning,
qCritical macros, and allows avoiding the size overhead the streaming
style incurs (mostly due to inlined QDebug code).
To handle this gracefully we require variadic macros (part of
C++11/C99). For compilers not supporting variadic macros we fall back
to checking the category in QMessageLogger.
[ChangeLog][QtCore][Logging] Allow qCDebug macros to be used in a printf
style.
Change-Id: I5a8fb135dca504e1d621bb67bf4b2a50c73d41b9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Some comparison operators comparing to const char *
where not implemented correctly.
Task-number: QTBUG-34024
Change-Id: Idbdc64c8ed93e88d9f2b2f55213bc785b33cb543
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
The documentation implies that cd() and cdUp() functions return false if
the new directory is not readable, but that is not the case. It is an
obvious mistake in the documentation, because cd'ing into a nonreadable
directory is perfectly valid.
Provided also with a test to verify that cd() actually returns true with
nonreadable directories.
Change-Id: I4aa3e859b35c64266df510a203574e3701aea77c
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Data::allocate(0) returns a pointer to read-only memory, updating d->size
will segfault. The safety check for this exists in all other QVector ctors
already.
Change-Id: Ida0fe4182de56ee62c7f91e8652cfafbfd7b8410
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Commit 773dd01 introduced a general mingw platform scope, which
is cleaner and more flexible than matching the spec name.
Change-Id: Ie3a9cb791a83f7c8a51bc4e23069190c452ab521
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
For example, QObject is non copyable (its copy constructor is deleted or
private via Q_DISABLE_COPY). It should still be allowed to pass a reference
to a QObject as an argument to as signal (or slot).
This fixes a compilation failure.
Task-number: QTBUG-36119
Change-Id: I9bcf477e347d69fdae2543c99781b6421883be78
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
For convenience, it reads more easily (and is somewhat expected) to
be able to add a string to a QJsonArray like you might with a
QVariantList: QJsonArray() << "string". Previously, QJsonValue provided
a private void* ctor to explicitly deny this case because it would
implicitly convert to a boolean. This ctor provides a const char* ctor
(much like QVariant) that interprets the incoming text as utf8 and
creates a String type QJsonValue.
[ChangeLog][QtCore][QJsonValue] Added constructor to QJsonValue for const char *
Change-Id: Icafa954d3da1fb264f9d0fd7cd1a1d2fbbe15095
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
operators for +, +=, and << were added to QJsonArray to make
it easier to work with, and more closely resemble the Qt
container classes
[ChangeLog][QtCore][QJsonArray] Added convenience methods to QJsonArray for appending QJsonValues
Change-Id: I96e0a43015f7c0f980cbbef7f20bd2085ee04795
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
update-mime-database does not exist, so there is no point in
trying to build this test.
Change-Id: Id60f2f8fc3af33d3f7ae2fb4f1042356b60f6596
Reviewed-by: David Faure <david.faure@kdab.com>
Reviewed-by: Wolfgang Bremer <wbremer@blackberry.com>
