So far we just write ... '.'. , which looks weird.
Change-Id: Iac6fc781c80976994ea0a182b55958baa39a7e52
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
The vast majority is actually switched to QRandomGenerator::bounded(),
which gives a mostly uniform distribution over the [0, bound)
range. There are very few floating point cases left, as many of those
that did use floating point did not need to, after all. (I did leave
some that were too ugly for me to understand)
This commit also found a couple of calls to rand() instead of qrand().
This commit does not include changes to SSL code that continues to use
qrand() (job for someone else):
src/network/ssl/qsslkey_qt.cpp
src/network/ssl/qsslsocket_mac.cpp
tests/auto/network/ssl/qsslsocket/tst_qsslsocket.cpp
Change-Id: Icd0e0d4b27cb4e5eb892fffd14b5285d43f4afbf
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Clang compiler defines fallthrough, but wrongly detects QT_HAS_CPP_ATTRIBUTE(fallthrough).
This makes compiler breaks compilation due clang be expecting
clang::fallthrough.
Change the order makes the exceptions. clang/gnu, been tested before
the generic, setting then proper defines at end.
LLVM-bug: https://bugs.llvm.org/show_bug.cgi?id=33518
Change-Id: Ic287e9028936af3bdade5c1ee319ca8914b36ea7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Make sure the wait handle is unregistered even though
there is no event dispatcher in QWinEventNotifier::setEnabled().
Task-number: QTBUG-64152
Task-number: QTCREATORBUG-19175
Change-Id: I608b95adc7cb874bc52dc5bf0e9f51b443b54ebc
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
If you had never used QHash before, this function returned -1. That's
not useful if you're trying to implement your own QHash that uses Qt's
global seed.
Change-Id: Ib0e40a7a3ebc44329f23fffd14b2e875b970a55c
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Previously, the native event filter listening on removable drivers
was installed on QCoreApplication::eventDispatcher() which led to
a mismatch when launched from a non-GUI thread since
~QAbstractNativeEventFilter() removes itself from
QAbstractEventDispatcher::instance().
Amends 45580aa925,
e612fe8d47.
Task-number: QTBUG-64171
Change-Id: Icbe289bd585f124d66989d0cd574040b986e680c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
udev encodes the labels for /dev/disk/by-label/ with ID_LABEL_FS_ENC
which is done with blkid_encode_string(). This function encodes some
unsafe 1-byte utf-8 characters as hex (e.g. '\' or ' ')
Task-number: QTBUG-61420
Change-Id: If82f4381d348acf9008b79ec5ac7c55e6d3819de
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Change-Id: Iaa6460d4eb96632f3cb03bc29b57934c53cbf88e
Reviewed-by: Jesus Fernandez <Jesus.Fernandez@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
The RENAME_NOREPLACE flag is supported for all Linux local filesystems,
since that can be easily checked by the VFS layer (it knows which files
exist and which ones don't). For non-local filesystems, the backend
needs support and that might need server-side support too. So we may get
EINVAL errors for those, in which case we fall back to link/unlink,
which in turn can fall back to rename().
EINVAL can also happen if we attempt to make a directory a
subdirectory of itself. In that case, we will attempt to link() it,
which will result in EPERM as we can't hardlink directories. Then we try
rename() again, which should result in the expected EINVAL.
Task-number: QTBUG-64008
Change-Id: Icaa86fc7b54d4b368c0efffd14f09ca23602dd2e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
This warning used to be part of -Wconversion, but that generates too
more noise than we're willing to fix now (like conversion from qint64 to
int). The float conversion does trigger for conversion from double to
float, as shown in all the QVectorND uses of float, but more
importantly, it triggers on passing floats to ints.
Change-Id: I69f37f9304f24709a823fffd14e69cfd33f75988
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Discussed during Qt Contributor Summit 2017. We concluded that we don't
want to make these functions public, as they do not follow Qt coding
style API. Specifically,
qStartsWith(a, b)
is not easily understood which argument is the needle and which argument
is the haystack (same problem memcpy() has). Compare that to
a.startsWith(b)
which can clearly be read in English as a subject-verb-object sentence.
This commit removes the unit tests that called compare().
Discussed-on: http://lists.qt-project.org/pipermail/development/2017-October/031060.html
Change-Id: Icaa86fc7b54d4b368c0efffd14ee6205eb9043fb
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Right now,this does really nothing. This commit is just to allow us to
transition the other modules (besides qtbase) to use the syntax that
will become the API.
I've marked three places to use the system CSPRNG:
1) the QHash seed
2) QUuid
3) QAuthenticator
I didn't think the HTTP multipart boundary needed to be
cryptographically safe, so I changed that one to the global generator.
Change-Id: Ib17dde1a1dbb49a7bba8fffd14ecf1938bd8ff61
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
I'll need it in the AF_NETLINK implementation of QNetworkInterface.
Change-Id: Icaa86fc7b54d4b368c0efffd14ef5ce895d0ed5b
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
It's perfectly benign, but I spent a lot of time debugging this and
trying to figure out how to solve something that didn't need solving. So
document for posterity.
For an adopted thread, the TLS destructors or the adopted thread watcher
on Windows will call QThreadData::deref():
- QThreadData::deref(), count drops to zero
-> delete this;
- ~QThreadData() deletes the QAdoptedThread
-> delete t;
- ~QThreadPrivate() calls deref() again
-> data->deref();
- QThreadData::deref(), count drops to -1, no action taken
- ~QObjectPrivate() calls deref() yet again
-> threadData->deref()
- QThreadData::deref(), count drops to -2, no action taken
Change-Id: Icaa86fc7b54d4b368c0efffd14ee448e0796e8d7
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
There were a couple of corner cases where doing setPort() would result
in QUrl thinking that an authority was not present. Since the full URL
parsing implies that a host is always present if the authority is
present, then we also imply that setting the port number makes the host
be present too.
Change-Id: I69f37f9304f24709a823fffd14e67c12da18d69f
Reviewed-by: David Faure <david.faure@kdab.com>
"global/qrandom.cpp", line 155: error #2000-D: attribute "destructor" is not implemented and will be ignored
Task-number: QTBUG-63948
Change-Id: Icaa86fc7b54d4b368c0efffd14efa35381d4e797
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The previous version was good, just not optimal. Because the input was
an unsigned 64-bit number, compilers needed to generate extra code to
deal with HW instructions that only convert 64-bit signed input. And
that was useless because a double uniformly distributed from 0 to 1 can
only have 53 bits of randomness.
The previous implementation did exactly what the Microsoft libstdc++ and
libc++ implementations do. In my opinion, those implementations have an
imperfect distribution, which is corrected in this commit. In those, all
random input bigger than 0x20000000000000 has a different frequency
compared to input below that mark. For example, both 0x20000000000000
and 0x20000000000001 produce the same result (4.8828125e-4).
What's more, for the libc++ and MSVC implementations, input between
0xfffffffffffff001 and 0xffffffffffffffff results in 1.0 (probability 1
in 2⁵³), even though the Standard is very clear that the result should
be strictly less than 1. GCC 7's libstdc++ doesn't have this issue,
whereas the versions before would enter an infinite loop.
Change-Id: Ib17dde1a1dbb49a7bba8fffd14eced3c375dd2ec
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Let's make it happen even later: at the time of QtCore's unloading from
memory. This prevents issues with something using QRandomGenerator after
the global static destructor would have run.
Change-Id: Icaa86fc7b54d4b368c0efffd14eed56bbbb51cb6
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Not properly initializing all members of the extended parameter struct
will cause an "invalid handle specified" exception on use.
Task-number: QTBUG-63883
Change-Id: Ic3a58df864c9e29ccbadc04bd71c18c8ef34374c
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>
QBasicMutex and QMutex are the same in bootstrap mode.
Change-Id: Icaa86fc7b54d4b368c0efffd14eed63343ddb51b
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
There's a common misconception that qDebug and friends are not
thread-safe, so let's explicitly state this.
Change-Id: I48d4ab8983017a9f2e7c9932a49ed573baa22929
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Error out if it's missing or broken (Mersenne Twister not present).
This ensures that we never have a low-quality random generator in Qt.
Change-Id: I0a103569c81b4711a649fffd14ec80649df7087e
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
NSTimeInterval is a typedef for double, but the code stored its value in
an int, and only then multiplied by 1000.
Fix by only truncating NSTimeIntervals to int(64_t) *after* the
multiplication by 1e3 to get milliseconds.
While it's highly unlikely that a transition will have fractional seconds
length, don't assume if you can just calculate the more exact result.
Adapted-From: Marc Mutz <marc.mutz@kdab.com>
Change-Id: I0911b9c945a94ca24c3dfb23ed6a849141076326
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
Auto-reset events are automatically reset to non-signaled when we get
notified about the signaled state. This implies that we cannot check the
event state again in activateEventNotifiers. Instead, store the signaled
state in a QAtomicInt and test and decrement that.
This amends commit 85403d0a.
Task-number: QTBUG-63555
Change-Id: I0adee3d2929783f98d91060f9106c8b5266d72fa
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
The Qt documentation is using 'upper-left' everywhere except at
QRect(F) detailed description and Qt::CoordinateSystem enum description.
Therefore fix it in those four places to be consistent.
Task-number: QTBUG-59981
Change-Id: Ie652044d0207ea5a42888d9e1f1dc9a86b1e9410
Reviewed-by: Mats Honkamaa <mats.honkamaa@qt.io>
Reviewed-by: Tarja Sundqvist <tarja.sundqvist@qt.io>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Commit 282065d443 renamed the generator
functions but we didn't update all the docs.
Change-Id: I0a103569c81b4711a649fffd14ec877ffbfe710d
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
There are a couple of Q_ASSERT wrapped by the new noexcepts, but most of
those aren't validation of external parameters, only of internal
construction. The two exceptions are the checks for pointer alignment.
Change-Id: I0a103569c81b4711a649fffd14ec8523d741dfb6
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The documentation of QKeyValueIterator was in the wrong place. This
patch moves it with the other iterators documentation.
Change-Id: I42ad529f72f9b19fdecfca7ddfeb6e6f4dcfebac
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
That overload documentation was missing the "exact" qualifier regarding
the search result.
Change-Id: I27a08b60f9b88ae497f8bd9d9ba6a99f4a9ab4d6
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
They are needed for older compilers that doesn't support
the __fp16 extension. Reverts under the assumptions other
compilers will optimize it away.
This reverts commit 6dc7e468df.
Task-number: QTBUG-63693
Change-Id: If780de001d8c12df0db12caaf62505f16e01b663
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Documentation is missing the specialized event type names in the
non-client mouse event enum description.
Task-number: QTBUG-55018
Change-Id: Ica35994e13fc9a637a52eeca361898f8669fdbd1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
<future> is needed by QThread::create. Instead of a fragile series
of preprocessor tests, move its detection to a configure test.
This dramatically simplifies the code, but on the other hand ties
the availability of QThread::create() to the system used to compile
Qt (rather the one used to compile an application).
Change-Id: If1b06363379bf29126cfa68f2a0651cbb78a67f7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Commits aba336c2b4 (in Qt 5.2) and
aba336c2b4 (in 5.6) both tried to deal
with this problem, with different levels of success. This is the third
attempt (and hopefully the charm).
Instead of modifying the path that the user provides, go straight ahead
and declare it invalid. This is supported by RFC 3986, which declares
this expansion impossible:
relative-part = "//" authority path-abempty
/ path-absolute
/ path-noscheme
/ path-empty
path-abempty = *( "/" segment )
path-absolute = "/" [ segment-nz *( "/" segment ) ]
path-noscheme = segment-nz-nc *( "/" segment )
The "path-abempty" and "path-noscheme" cases are the two issues we
already handle. This commit adds the third one: path-absolute, which
requires that the first segment of the path be of non-zero length.
That is, it is now possible again to have http://example.com//path
constructed piece-wise, without it producing http://example.com/path.
Additionally, it catches the case of http://example.com//path parsed
from full URL then followed by setAuthority("").
Change-Id: I69f37f9304f24709a823fffd14e67a5e7212ddcd
Reviewed-by: David Faure <david.faure@kdab.com>
That was stupid for two reasons. First, applicationName() can be changed
by the user by calling QCoreApplication::setApplicationName(), so if
that happens, we won't be able to properly identify a lock belonging to a
given application because the name changed.
Second, because applicationName() is not what we compare to. Instead,
let's use processNameByPid() on both content creation and verification.
[ChangeLog][QtCore][QLockFile] Fixed a bug that would cause QLockFile
mis-identify valid lock files as stale if the application name was set
with QCoreApplication::setApplicationName().
Change-Id: I0b48fc8e90304e0dacc3fffd14e912a5c98c87e7
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
We duplicated both the creation of the contents and the check if the
file was stale. Centralize everything in qlockfile.cpp.
Change-Id: I0b48fc8e90304e0dacc3fffd14e91174af79841f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
F_SETLK is bad. Explanation in the comment. And flock(2) does work with
NFS on Linux, so let's just stick to that, which is simpler.
We only use the file locks when we attempt to delete an apparently stale
lock: that is, for a lock file that is at least staleLockTime old.
Change-Id: I0b48fc8e90304e0dacc3fffd14e908c8c4c9d59b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: David Faure <david.faure@kdab.com>
When many runnables are executed, this improves the
performance by not resizing the queue for each runnable,
which was the case in the previous version, because of
many calls to QVector::takeFirst().
Also add a test that makes sure tryTake() is safe to
call and does not leave the queue in a bad state that
tries to use nullptr entries.
Change-Id: I608134ecfa9cfc03db4878dcbd6f9c1107e13e90
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This is enabled by default with Xcode 9 and would therefore be seen by
anyone calling this function from C or Objective-C.
Task-number: QTBUG-63450
Change-Id: Iecd67017b6774c9f2fce2433002ff852058dd3ed
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Liang Qi
Kai Koehne
Thiago Macieira
Helio Chissini de Castro
Friedemann Kleint
Christian Ehrlicher
Robert Loehning
Oliver Wolff
Orgad Shaneh
Edward Welbourne
Joerg Bornemann
Samuel Gaist
Allan Sandfeld Jensen
Krzysztof Kawa
Giuseppe D'Angelo
Svenn-Arne Dragly
Jake Petroules