| Commit message (Collapse) | Author | Age | Files | Lines |
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From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new LGPL header instead of LGPL21 one
(in those files which will be under LGPL v3)
Change-Id: I046ec3e47b1876cd7b4b0353a576b352e3a946d9
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
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Change-Id: I5839bded07e23af65ced9491c4f50242f964dd31
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operator<<."
This reverts commit d3fe4f066f70bc8e4aef06b963444ecdbc3dd00f.
Required to revert the parent commit.
Change-Id: I1039e2ee65c0cd2c3209ea18bd3bd2d84a8daef3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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This reverts commit 618e2cc081e09d9222418bd933876224675a7530. The
original commit has a section of code that I failed to review properly
and is of questionable functionality.
Change-Id: I61c53d7b8b2aa7c3312292b017a18aba7da11bc5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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This is a false positive because the only offset that can be outside the
bounds was the last one (-1), which could not be reached in this line
because of the qBound on the line before limiting the maximum value.
The -1 wasn't generated by the Perl script embedded in the file anyway.
qdbuserror.cpp:142:64: error: offset outside bounds of constant string [-Werror]
Change-Id: I24a735698d3c4a719fc9ffff1425f8aad5e5978e
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
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Saves a bit more than 0.5KiB in text size on optimized
GCC 4.9 Linux AMD64 builds.
Change-Id: I3b7e4751c4799c3e2c9f8f23b769e1659d863579
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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It just prevents the compiler from synthesizing move
special member functions, something that is very much
desired, seeing as there's a QVector member.
Change-Id: I4daabb380cd73dcacf3f514827b84562767a7a20
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Based on merge done by Liang Qi
Change-Id: Id566e5b9f284d29bff2199f13f9417c660f5b26f
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The reply serial is displayed for method call returns and errors,
while the serial is displayed for all message types.
To see a message serial it is required to dump messages after
sending, not before.
Task-number: QTBUG-44490
Change-Id: I859f50d739ed059d5b2dfe1a2efdf04b906891a7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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This patch includes setup of class member 'msg' in
QDBusMessagePrivate::toDBusMessage() to be able to get the
serial after message sending.
Testcases for comparing the 'reply serial to' with the 'serial'
are included.
Task-number: QTBUG-44490
Change-Id: Iae7c48f5b0c70a6c5ae500904072b38b46dfd876
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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To retain a bit compatibility with applications developed in the last 9
years that expect that QDBusConnections won't process their events until
the event loop runs, we now suspend the handling of incoming messages
in the two default buses (and only in them) and resume when the event
loop starts. This is required because the new threaded QtDBus would
otherwise process incoming messages that the application didn't expect
it to.
For example, if the application first acquires names on the bus and only
after that registers objects with QtDBus, there's a small window in
which the name is acquired and visible to other applications, but no
objects are registered yet. Calls to those objects may be received,
would then be processed in the QDBusConnectionManager thread and fail.
The work around is to disable the actual handling of method calls and
signals in QDBusConnectionPrivate::handleMessage. Instead, those
messages are queued until later.
Due to the way that libdbus-1 works, outgoing method calls that are
waiting for replies are not affected, since their processing does not
happen in handleMessage().
[ChangeLog][Important Behavior Changes] QtDBus now uses threads to
implement processing of incoming and outgoing messages. This solves a
number of thread safety issues and fixes an architectural problem that
would cause all processing to stop if a particular thread (usually the
main thread) were blocked in any operation. On the flip side, application
developers need to know that modifications to a QDBusConnection may be
visible immediately on the connection, so they should be done in an
order that won't allow for incomplete states to be observed (for
example, first register all objects, then acquire service names).
Change-Id: I39cc61d0d59846ab8c23ffff1423c6d555f6ee0a
Reviewed-by: David Faure <david.faure@kdab.com>
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So we can do
connect(&watcher, SIGNAL(finished()), receiver, SLOT(foo()));
Change-Id: I39cc61d0d59846ab8c23ffff14241d33fecf2d53
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
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They're never pending, since we add them immediately since commit
186d8814407ccb3e221537d9797172c37127bc51.
Change-Id: I39cc61d0d59846ab8c23ffff14241be6785ad5a0
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
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QList of pointers is optimum, but QVector should provide the same
performance (we aren't using the beginning-of-list feature that QList
has and QVector doesn't).
But since we're using QVector elsewhere, this should be better.
Change-Id: I39cc61d0d59846ab8c23ffff14241c6715e2eb00
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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... and remove misleading comments (these are overloads, not specializations).
The QList overloads do nothing different from the generic container
overloads. Remove them.
Only leave the QVariantList overload, because that converts to
QDBusVariant before serializing. Which means that this should
probably be templated on the container type, otherwise you get
different behavior for QList<QVariant> and, say, QVector<QVariant>,
which is surely wrong.
Change-Id: I215ba9891235b51304c2ed4041d3dbd003d69581
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Calling QVector::erase(it) in a loop consitutes quadratic
behavior (O(N) function called O(N) times).
Fix by using std::remove_if(), which is linear.
Change-Id: I39c11231d604bc2d9506427bc3411b71d71b5569
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Change-Id: Ia828db7bb71b874b19a610439e156687f273290f
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
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If, after checking a condition, we issue a qFatal()
or a qCritical(), by definition that check is
unlikely to be true.
Tell the compiler so it can move the error handling
code out of the normal code path to increase the
effective icache size.
Moved conditional code around where possible so that
we could always use Q_UNLIKELY, instead of having to
revert to Q_LIKELY here and there.
In some cases, simplified the expressions newly wrapped
in Q_UNLIKELY as a drive-by.
Change-Id: I67537d62b04bc6977d69254690c5ebbdf98bfd6d
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
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Conflicts:
.qmake.conf
configure
src/corelib/global/qglobal.h
src/tools/qdoc/node.cpp
src/tools/qdoc/qdocdatabase.cpp
tests/auto/corelib/io/qsettings/tst_qsettings.cpp
tools/configure/configureapp.cpp
Change-Id: I66028ae5e441a06b73ee85ba72a03a3af3e8593f
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The examplesinstallpath variable in .qdocconf files defines the path
under QT_INSTALL_EXAMPLES where examples are found.
To match the way examples are packaged in Qt 5.6, prefix each
install path with the repository name.
Task-number: QTBUG-48736
Change-Id: I6a35c94fdacaad21cd044411aba02027b9019300
Reviewed-by: Venugopal Shivashankar <venugopal.shivashankar@digia.com>
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If you used the QString constructor overload and passed an empty
address, the d pointer would remain uninitialized.
Found by Coverity, CID 11724.
Change-Id: I42e7ef1a481840699a8dffff1407ead3ee703d6e
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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I can't find any use, ever, of them.
Change-Id: I42e7ef1a481840699a8dffff1407eb1a93b128a8
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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We set it to the number of types that the call expects to receive, but
we never used it anywhere else.
Change-Id: I42e7ef1a481840699a8dffff1407eb520b5844d8
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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Conflicts:
tests/auto/corelib/io/qfile/tst_qfile.cpp
tests/auto/corelib/io/qprocess/tst_qprocess.cpp
tests/auto/corelib/tools/qversionnumber/qversionnumber.pro
Change-Id: Ia93ce500349d96a2fbf0b4a37b73f088cc505c6e
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if t >= QMetaType::User, we would not return false nor call convert.
We would then pass a pointer to whatever is in the QVariant to the
qt_metacall that is expecting a pointer to an object of a different type.
Since we have custom converters, we can call QVarent::convert even for
custom types anyway.
[ChangeLog][QtCore] Fixed crash when setting a QVariant of a different
type to a property of a custom type. Attempt to do a conversion instead.
Task-number: QTBUG-40644
Change-Id: Ib6fbd7e7ddcf25c5ee247ea04177e079f6d7de35
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
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Change-Id: I7accaac765f5514b67279b640de7f98c8042c35a
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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A \target whose purpose is to link to the top of a
page (and not to a section within a page) works better
as a \keyword, because \target generates a
new html anchor which, in this case, is not tied to
any title element on the page.
A \keyword links to the page itself, as expected.
Task-number: QTBUG-48482
Change-Id: I957551edd0eb7e665358d04b37dab41e2686b851
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
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Change-Id: I42e7ef1a481840699a8dffff1408dfd4fd9c8e32
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
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Any connect requiring a lambda to be ported or function casts were not touched
Change-Id: I1718121986ba6632b5754efa631f7b599358e186
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Normally, disconnectNotify() is called at the end of QObject::disconnect
and all the locks have been dropped. That is not the case for the
QObject destructor, so we need to deal with the fact that it there may
be some locks held.
I didn't catch this issue during testing because it depends on the
pointer addresses of the object being destroyed and that of the
QDBusAbstractInterface sender object, as we use one global, non-
recursive mutex pool. For the same reason, this patch is not testable.
The fix is simple: we don't need to remove the relay rules immediately.
It's ok for them to happen later, since the worst case scenario is that
we'll receive a few more signals than we have objects to deliver them
to. If that happens, we'll do a little more work than we have to. But in
the normal case, the amount of work is the same and we get the benefit
of returning more quickly from the destructor. What's more, if the
QDBusAbstractInterface object also gets destroyed, the events are
deleted and QDBusConnectionPrivate will clean everything up.
Task-number: QTBUG-48410
Change-Id: I42e7ef1a481840699a8dffff1406b789ba5217b3
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
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Change-Id: I9a75ad8521ae4e5cbbe5ffff13d1a740643ec22e
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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QDBusConnectionPrivate can only be a client or a server, not both, so
the DBusServer and DBusConnection pointers can be shared, like the
QDBusConnectionInterface and QDBusServer pointers in the other anonymous
union.
Change-Id: I9a75ad8521ae4e5cbbe5ffff13d1baa8ab83c42f
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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This commit moves the code that finishes the signal-slot connection into
the QtDBus auxiliary thread. That is necessary because we're holding the
lock for writing while making blocking calls. The auxiliary thread might
be waiting for us to release that lock while processing some previous
message.
Change-Id: Iee8cbc07c4434ce9b560ffff13d0521b94a51833
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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This is an optimization but is required. Instead of going through the
entire (dis)connectSignal() stack to add/remove matching rules for the
NameOwnerChanged bus signal and call into our serviceOwnerChangedNoLock
slot, create a static hook that will match the signal and simply add/
remove the rules as needed.
The required part is that this avoids a recursion into connectSignal().
The next commit will move this code to the QtDBus manager thread and we
won't be able to call connectSignal() from there (it would create a
deadlock).
Change-Id: Iee8cbc07c4434ce9b560ffff13d074ce90ad02d4
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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In two commits, we will attempt to call this function from the manager
thread, so we need to be sure this function works from there. Right now,
it would deadlock in QDBusPendingCallPrivate::waitForFinished(), inside
QDBusConnectionPrivate::sendWithReply().
The solution is simple: expand sendWithReply to the sendWithReplyAsync
function it calls anyway, but tell the internal DBusPendingCall to
finish before we call waitForFinished().
Change-Id: Iee8cbc07c4434ce9b560ffff13d0749013d771ab
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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That function was added in the previous commit, so deduplicate the code
from QDBusAbstractInterfacePrivate::initOwnerTracking().
Change-Id: Iee8cbc07c4434ce9b560ffff13d06f1d9fb0cde5
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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With kdbus, we won't have a regular signal, but instead a special
message. So keep the logic of what to do in QDBusConnectionPrivate.
The #ifdef is to make sure the bootstrapped qdbuscpp2xml continues to
build in cross-compilation environments.
Change-Id: Iee8cbc07c4434ce9b560ffff13d06f0d9904cb6d
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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They were used when we called the libdbus-1 message-sending functions
from any thread, which meant that the callbacks could be triggered on
any thread. Since we moved the message-sending to one thread only (the
manager's thread), there's no need for the event fallback anymore.
Since they're also always[*] running on an aux thread, there's no point
in checking for the presence of a QCoreApplication instance anymore. I
don't think there has been a need for this for many years, as the event
dispatcher has been decoupled from QCoreApplication for a long time.
[*] exception: the callbacks are first called in the thread that invoked
QDBusConnection::connectTo{Bus,Peer}, before we've done the
moveToThread.
Task-number: QTBUG-43585
Change-Id: Ic5d393bfd36e48a193fcffff13b73758c798d6b0
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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The two global statics for the session and system buses aren't necessary
if they can't outlive the global static for QDBusConnectionManager
anyway. So merge them there. The extra mutex is necessary because the
QDBusConnection::connectToBus function will lock the regular mutex.
This solves a potential memory leak at exit as a side-effect. Before
this change, the session and system QDBusConnection object got destroyed
in the main thread during global destruction, so it had to post an event
to the QDBusConnectionManager thread to finish the destruction of the
private. However, QCoreApplication is already gone by this point, so the
QEvent::DeferredDelete event never got delivered.
After this commit, there's no global static to destroy the
QDBusConnection (there is no QDBusConnection holding a reference), so
the object gets destroyed in QDBusConnectionManager::run()'s cleanup
code.
Change-Id: I9a75ad8521ae4e5cbbe5ffff13d1b967ee1a7a7e
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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Now we know that all timers and socket notifiers get created only in the
QDBusConnectionManager thread.
Incidentally, this reduced code duplication.
Change-Id: I27eaacb532114dd188c4ffff13d5075a8d2efb0b
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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With this, we now know that all messages sent are sent from the same
thread. This simplifies greatly the handling of the socket.
Task-number: QTBUG-43585
Change-Id: Ic5d393bfd36e48a193fcffff13b73758087344ed
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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This is intended to simply the handling of the socket in the
future. Now, we know that all calls to send_with_reply are placed only
from the manager's thread.
Task-number: QTBUG-43585
Change-Id: Ic5d393bfd36e48a193fcffff13b737575c231927
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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No need to check for the local loop if that's the first thing
QDBusConnectionPrivate::sendWithReplyAsync will do. The side effect is
that this now allocates memory for the QDBusPendingCallPrivate object,
but loopback messages aren't that common to be worth the special casing.
Task-number: QTBUG-43585
Change-Id: Ic5d393bfd36e48a193fcffff13b73756ab802ba2
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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They're pretty much the same, clearly a copy & paste. Instead, merge the
two codepaths so that we don't run the risk of applying a change in one
part and forgetting the other.
Task-number: QTBUG-43585
Change-Id: Ic5d393bfd36e48a193fcffff13b737560f6753be
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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Each application will have one thread dedicated for this, for all
QDBusConnections. I wouldn't mind sharing such a thread with other uses
in Qt, provided none of them ever block (the QProcessManager thread
comes to mind, but it's going away soon).
The cost associated with this change in this commit is so far rather
minimal. All incoming D-Bus calls need to be handled after an event is
posted anyway, to avoid deadlocking on reentering libdbus-1 functions
that acquire locks still held. The cost is the one more thread running
and the cost of synchronizing them when an event is posted.
The benefits far outweigh that cost: no longer will we have problems of
QtDBus failing to run if the main system or session connections are used
before QCoreApplication is run. Moreover, events can be received and
handled in aux threads even if the main thread is blocked on some
operation.
Note: this commit may not be testable (tst_qdbusconnection may fail)
Task-number: QTBUG-43585
Change-Id: Ic5d393bfd36e48a193fcffff13b737556ccd11a8
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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This simplifies the code a little by having a single code path. More
importantly, we no longer need to call the evil function
dbus_connection_send_with_reply_and_block. That function acquires a lock
on the socket transport inside libdbus-1, which means all threads need
to wait until the one call gets unblocked before they can continue.
To do that, this commit reimplements the QDBus::Block part of
QDBusConnectionPrivate::sendWithReply by reusing the existing call to
sendWithReplyAsync() and then doing a blocking-wait with
QDBusPendingCallPrivate::waitForFinished().
By using (Q)DBusPendingCall and the threaded connection approach (next
commit), now we never block on the socket. That also means the code to
call dbus_pending_call_block() is no longer necessary and the
waitForFinished() function itself can be considerably simplified.
As a side-effect of no longer blocking, a number of pre-existing race
conditions that used to be hidden showed up.
Note: this commit deadlocks without the threading (next commits).
Task-number: QTBUG-43585
Change-Id: Ic5d393bfd36e48a193fcffff13b73754954a3f7d
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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It used to return the sent message's serial ID, but we never used that.
So simply use boolean instead.
Change-Id: Ic5d393bfd36e48a193fcffff13b73753ccf47759
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
Reviewed-by: Albert Astals Cid <aacid@kde.org>
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The cost of connecting a signal may be a bit high, but it's comparable
to looking up the invokable method. However, QMetaMethod::invoke has a
higher cost than a signal-slot emission -- though in any case they're
both dwarfed by the cost of allocating the QMetaCallEvent and the
posting of it.
This is much more readable, though.
Change-Id: Iccecbecbe6288fb3b6d16578fdff3f203b6db29c
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
Reviewed-by: Albert Astals Cid <aacid@kde.org>
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This is because the socket activity will move to a different thread;
QDBusConnectionPrivate* can be queued, QDBusConnection can't easily.
Change-Id: I82722016018b7fcfb246cda6043469fadbfd987d
Reviewed-by: Albert Astals Cid <aacid@kde.org>
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>
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