Commit Graph

33 Commits (bc4ce284ade4e3584370a74a0cc6aadc40301231)

Author SHA1 Message Date
Olivier Goffart ab59a7ef09 Add private API to connect to slots in QObjectPrivate
Change-Id: I16ffbf91ff4c6e9fca6fe7984800d2c24e70701b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-02-28 19:22:05 +01:00
Sze Howe Koh 52a317092e Doc: Fix references to Qt Test
QtTestLib and QTestLib don't exist. The proper name is "QtTest" (code)
or "Qt Test" (English)

http://qt-project.org/wiki/Spelling_Module_Names_in_Qt_Documentation
http://lists.qt-project.org/pipermail/interest/2012-December/005221.html

Files paths in qttestlib.qdocconf can't be changed easily however, as it
breaks things. So, they're left as they are.

Change-Id: Ifbc44ea858c453bedad8cd7723f847e67fc7a85a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
2013-01-30 01:35:06 +01:00
Sergio Ahumada 48e0c4df23 Update copyright year in Digia's license headers
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2013-01-18 09:07:35 +01:00
Iikka Eklund be15856f61 Change copyrights from Nokia to Digia
Change copyrights and license headers from Nokia to Digia

Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.com>
2012-09-22 19:20:11 +02:00
Marc Mutz 04c286ceb6 QSlotObjectBase: combat virtual function "bloat"
In C++, the compiler creates extra functions and data for classes
with virtual functions. This can lead to "virtual function bloat":
  http://www.boost.org/doc/libs/1_47_0/doc/html/function/misc.html#id1382504

This is especially true when the number of instances is of the same
order of magnitute as the number of derived classes, such as is
common with type erasure techniques.

One such case is the QSlotObjectBase hierarchy, which this patch
tackles.

The mechanics of this optimisation are simple: re-implement the
virtual function call mechanism by hand, with function pointers.

But we go one step further and collapse the vtable into a single
pointer to a function that implements all three currently-defined
operations, swtching on an 'int which' argument. This even allows
us to extend this in a BC way, should that become necessary later,
by adding a new Operation and using the void** argument to
transport arguments, if any.

This approach was inspired by:
  Ulrich Drepper: How To Write Shared Libraries, Section 2.4.4
  http://www.akkadia.org/drepper/dsohowto.pdf

Also move the QSlotObjectBase hierarchy out of QObject so as not
to export all the derived classes.

This was pointed out in review by Thiago.

Results (Linux amd64, GCC 4.8-pre -O2 -std=c++11, stripped):

  size tst_qobject*

     text    data     bss     dec     hex filename
   523275   21192      48  544515   84f03 tst_qobject (old)
   507343   13984      48  521375   7f49f tst_qobject (new)

  relinfo.pl tst_qobject*

   (old) tst_qobject: 473 relocations, 0 relative (0%), 240 PLT entries, 240 for local syms (100%), 0 users
   (new) tst_qobject: 323 relocations, 0 relative (0%), 238 PLT entries, 238 for local syms (100%), 0 users

Change-Id: I40ad4744dde8c5c29ef62ed2d82d4b1ede178510
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-08-15 23:40:57 +02:00
Thomas McGuire f83954c631 Provide access to (dis)connectNotify() from other objects.
This is the first step to fix (dis)connectNotify() not getting called
for QML signal handlers and bindings.

Change-Id: I5cfc126a5562a20031d3af8415c60d101603dd8d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
2012-07-24 04:23:45 +02:00
Kent Hansen d359b0af2b Call QObject::disconnectNotify() when receiver is destroyed
Store the signal index in QObjectPrivate::Connection, thereby making
it available in "implicit" disconnect contexts (i.e., receiver
deletion).

This change does not cause the size of QObjectPrivate::Connection
to grow (still 40 bytes on 32-bit Linux, 72 bytes on 64-bit Mac).

Valgrinding the new benchmark indicates that the percentage of the
time spent in the QObject destructor increased from 7.8% to 8.4%
on ia32, for that particular stress test; the increase is the
combined cost of calling metaObject(), QMetaObjectPrivate::signal(),
and disconnectNotify() for one connection. In practice, the measured
wallclock time increased by about 3ms for a 500ms run (which
repeatedly constructs, connects, and destroys an object).

Task-number: QTBUG-4844

Change-Id: I1beb01c753f31542fc0acb62edb4c6d165fcc5b4
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
2012-06-28 14:44:20 +02:00
Kent Hansen f4b3fa305d Add QAbstractDeclarativeData::isSignalConnected hook
Similar to QAbstractDeclarative::receivers. This hook will allow
QObject::isSignalConnected(QMetaMethod) to return true when there are
QML-managed connections.

It's important that the hook is called from
QObjectPrivate::isSignalConnected(uint), since QML calls that
function.

Change-Id: I9c5e42f2b3e7f985af02905985a3a47101cdee05
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>
2012-06-26 22:38:23 +02:00
Kent Hansen ff50519768 Change testlib signal dumper hooks to use signal index range
Another step towards getting rid of the class method offset
computation in QMetaObject::activate().

Since QMetaObjectPrivate::signal() is private API, this also
required adding a testlib dependency on core-private (and
getting rid of the duplicated QSignalSpyCallbackSet struct).

Change-Id: I0d830f35392a6b44fc321c5285877ec0bf437100
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2012-06-04 01:18:52 +02:00
Kent Hansen 6d996dd74d Change QConnectionSenderSwitcher et al to use signal index range
First step towards getting rid of the signal_absolute_index variable
from QMetaObject::activate() (which requires computation of the
class's method offset).

This also required changing the implementation of the public function
senderSignalIndex() so it still returns an index in the full method
range.

Change-Id: I58571eb3c8099ea5b673682872c53875f5ea8c13
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2012-06-03 11:04:50 +02:00
Kent Hansen 1e778ebd06 Move implementation of QObject::senderSignalIndex() to QObjectPrivate
In preparation of changing the implementation to return an index in
the signals-only range, not all-methods range.

Change-Id: Ib743a4bc9da27ad776ade262b215ebf988e7ab28
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2012-06-01 01:21:43 +02:00
Martin Jones 11fa02c5cd Move rarely used QObjectPrivate data to extraData
Move runningTimers, eventFilters and objectName data members to
ExtraData.  Saves 12 bytes per QObject for 95% of use cases
(QObjectPrivate goes from 76B -> 64B).

Change-Id: I5648c89f65a7be3ea51bd703ee8a9dcff6222c3c
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
2012-05-21 03:10:45 +02:00
Aaron Kennedy 276a86592a Encapsulate the dynamic meta object pointer
This change allows us to delay creating the actual meta object
until it is actually required.

Change-Id: I1c4a4226bd82fa606b206dd60322f49b49c32463
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
2012-05-18 10:36:42 +02:00
Michael Brasser c47c8ba59e Remove QAbstractDeclarativeData::objectNameChanged.
There is now an actual NOTIFY signal for this property, and the callback
is no longer necessary.

Change-Id: I664714e22e607c747f144250cfb78de8c1d28686
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Michael Brasser <michael.brasser@nokia.com>
2012-05-10 00:20:43 +02:00
Kent Hansen 243ea09e4c Add QMetaMethod-based QObject::connect/disconnectNotify() API
This API will fully replace the const char *-based connectNotify()
and disconnectNotify() in Qt5; the old functions will be REMOVED
before Qt 5.0 final.

The new implementation fixes the long-standing issue of
connectNotify() not being called when using the (internal)
index-based QMetaObject::connect() (e.g., from QML).

As with the old API, there are still two "unintuitive" behaviors
concerning disconnectNotify():
- disconnectNotify() is not called when the signal is disconnected
  using the QObject::disconnect(QMetaObject::Connection) overload.
- disconnectNotify() is not called when a receiver is destroyed
  (i.e., when a connection is implicitly removed).

The old versions of connectNotify() and disconnectNotify() are kept
for now, and they are still called. They will be removed once known
existing reimplementations (e.g., QtNetwork, QtDBus) have been
ported to the new API.

Change-Id: I8b4f007f3c6d89199c1ba04a3e23c8ca314e0896
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
2012-05-01 01:18:03 +02:00
Michael Brasser 56d78e5086 Add a receivers callback to QAbstractDeclarativeData.
Change-Id: I767fabd66c7de535db26e779855d21ec5b94e947
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
2012-04-20 00:32:32 +02:00
Lars Knoll 96232be146 Merge remote-tracking branch 'origin/api_changes'
Conflicts:
	dist/changes-5.0.0
	mkspecs/features/qt_module_config.prf
	qmake/project.cpp
	qmake/property.cpp

Change-Id: I6e4af40743a9aeff8ed18533a48036e332acc296
2012-03-04 21:45:05 +01:00
Marc Mutz 4908cf2a55 QBoolBlocker: make constructor explicit and disable copying
Change-Id: If294eff3f84f837ed554c572527d46a89660de9c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2012-03-01 13:55:49 +01:00
Stephen Kelly 612152fad8 Make qobject_p.h not need qvariant.h.
Move definition of ExtraData to the implementation file.

As a side effect, we need to include qhash.h
in some other places.

Change-Id: I8bb4ec0940ae51c7d6961c9a51adb80fd444e1e3
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2012-02-29 14:08:33 +01:00
Jason McDonald 5635823e17 Remove "All rights reserved" line from license headers.
As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.

Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-30 03:54:59 +01:00
Jason McDonald 629d6eda5c Update contact information in license headers.
Replace Nokia contact email address with Qt Project website.

Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-23 04:04:33 +01:00
Jason McDonald 1fdfc2abfe Update copyright year in license headers.
Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-05 06:36:56 +01:00
Bradley T. Hughes f821d6352e Don't release timer ids in event dispatcher code
3rdparty event dispatchers are impossible to write without using the
internal API QAbstractEventDispatcherPrivate::releaseTimerId(). Fix
this by having each QObject keep track of its own timer ids, and
release them when they are no longer used. As a side effect, this
makes the QObjectData::pendTimer bit unnecessary.

This also removes the QObjectData::inThreadChangeEvent hack that the
event dispatchers used to avoid releasing timer ids when moving timers
to a new thread.

QBasicTimer becomes even more low-level. It cannot use
QObject::startTimer() anymore, since we do not have a way to call
QObject::killTimer() from QBasicTimer::stop(). QBasicTimer uses the
QAbstractEventDispatcher interface directly, and releases the timer id
explicitly as well when stopping the timer.

This change also fixes some rare timer id "leaks" when destroying or
stopping timers after a thread has exited and destroyed its event
dispatcher (the timer ids would never be released when no dispatcher
exists).

Globally destructed QObjects that have running timers may try to release
their timer ids after the timer id freelist has been destroyed. This
commit accomodates such objects by avoiding the null dereference in
QAbstractEventDispatcherPrivate::releaseTimerId().

Change-Id: I2d7cd8221fae441f3cf02b6c0b4bc16063834d00
Reviewed-by: David Faure <faure@kde.org>
Reviewed-by: Denis Dzyubenko <denis.dzyubenko@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
2012-01-04 14:31:57 +01:00
Bradley T. Hughes 2561ab5841 Remove QT_JAMBI_BUILD code
Change-Id: Ic9231b11293af4352f11cf075893175f0c9a471f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2011-12-15 13:28:09 +01:00
Bradley T. Hughes 6f0f9f6928 Remove QMetaObject guards and deprecate QPointer.
QWeakPointer is superior and preferred.

Remove QMetaObject::addGuard(), QMetaObject::changeGuard(),
QMetaObject::removeGuard(), and QObjectPrivate::clearGuards().

Implement QPointer using QWeakPointer<T> instead. This changes the
behavior of QPointer in 2 ways:

- During destruction of a QWidget. Previously, the destructor of QWidget
would reset all QPointers so that they would return zero when destroying
children. Update tst_QPointer to account for this change.

- When constructing a QSharedPointer to take ownership of an object
after a QPointer is already tracking the object. Previously, the shared
pointer construction would not be affected by the QPointer, but now
that QPointer is implemented using QWeakPoiner, constructing the
QSharedPointer will cause an abort(). Fix tst_QSharedPointer by
removing the use of QPointer in the objectCast() test.

These behavior changes are documented in the QPointer class
documentation and in the changes file.

Change-Id: I92d0276219c076ece7bcb60f6e1b9120ce4f5747
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2011-12-10 16:11:48 +01:00
Olivier Goffart 66b659c8a4 Add support for QueuedConnection when connecting using the new syntax
QMetaCallEvent now can handle a pointer to QSlotObjectBase

Change-Id: I94da1e68ce9bb1fd96a9ae013a389552eb625faa
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2011-11-25 01:12:14 +01:00
Olivier Goffart 583c55b243 New QObject connection syntax
In addition to the old connection syntax, you can now connect using function pointers.

    connect(sender, &Sender::valueChanged,
            receiver, &Receiver::updateValue );

You can connect also to functor or C++11 lambdas

The connections are now type safe (no more problems with namespaces
or typedefs).  Implicit type conversion is also supported.

The new syntax forces us to change the meaning of signal form
protected to public, in order to be able to access the signal's
address everywhere

The way it works is by introducing new overload of QObject::connect
that take function pointer as parametter. Those new overload are template
function, that are implemented inline. The actual implementation is
in QObject::connectImpl which take a QObject::QSlotObject* as parametter
for the slot.  That slot object contains a virtual function which call
the slot which has to be implemented in the header as it depends on the
template parametter.  So the internals of QObjectPrivate::Connection
will store this QObjectSlot* in order to be able to make the call.

You can read a full description here:
http://developer.qt.nokia.com/wiki/New_Signal_Slot_Syntax

History of commits before it was imported on gerrit:
https://qt.gitorious.org/~ogoffart/qt/ogoffarts-qtbase/commits/qobject_connect_ptr

Thread on the mailing list:
http://lists.qt.nokia.com/pipermail/qt5-feedback/2011-August/000796.html
http://lists.qt.nokia.com/pipermail/qt5-feedback/2011-September/001248.html
(The discussions on the mailing list were about trying to find a
solution that do not need making signals public, but no user friendly
solution was found)

Note: support for QueuedConnection, and the symetric QObject::disconnect is
added in another commit.
Qt::UniqueConnection is not supported yet in the new overload.

Change-Id: I67d08436b0720e7f2992be9f7e34770960fa58fa
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2011-11-25 01:12:14 +01:00
Olivier Goffart 79f675a1e0 Change the return value of QObject::connect
From a bool to a handle to to connection.

Also added a new overload of disconnect that disconnect a handle

This is required because with the new syntax taking lambda or functors,
it is the only way to disconnect a connection (as it is impossible to
compare functors)

The new return value is QMetaObject::Connection, it is a wrapper around
the internal QObjectPrivate::Connection.
QObjectPrivate::Connection is now reference counted.

tst_qglobal.cpp:
   This test set up an internal callback, and the callback do not set any
   proper connection handle (and tbh,  it would be hard for it to do so).
   So the returned QMetaObject::Connection is invalid, and ok is false
   (Internal callbacks are only used for jambi and should probably be removed)

Change-Id: I111626fb4f47efc4db5e2ea5bff9da15f08fea7b
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2011-11-25 01:12:14 +01:00
Thiago Macieira 5bfeab8749 Make all uses of QBasicAtomicInt and Pointer use load() and store()
Most of these changes are search-and-replace of d->ref ==, d->ref !=
and d->ref =.

The QBasicAtomicPointer in QObjectPrivate::Connection didn't need to
be basic, so I made it QAtomicPointer.

Change-Id: Ie3271abd1728af599f9ab17c6f4868e475f17bb6
Reviewed-on: http://codereview.qt-project.org/5030
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
2011-10-03 07:57:41 +02:00
Aaron Kennedy 009f3d1404 Add a signal emitted callback to QAbstractDeclarativeData
For property notify signals, QtDeclarative can manage connections
in a more special case - and more performant - way.  This patch
adds a callback hook so that QtDeclarative can intercept signals
being emitted by declarative objects.

Change-Id: I72554e80df0a4257da65d81cc1c5db88a11446a4
Reviewed-on: http://codereview.qt.nokia.com/3363
Reviewed-by: Martin Jones <martin.jones@nokia.com>
2011-08-30 02:23:38 +02:00
Lars Knoll 118b3d3f84 Remove Qt3 support functionality from parts of QtCore
Change-Id: I90f391e9bfc412087bd0401e28d2497571f81aa1
Reviewed-on: http://codereview.qt.nokia.com/825
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Liang Qi <liang.qi@nokia.com>
2011-06-29 15:10:14 +02:00
Jyri Tahtela f9f395c28b Update licenseheader text in source files for qtbase Qt module
Updated version of LGPL and FDL licenseheaders.
Apply release phase licenseheaders for all source files.

Reviewed-by: Trust Me
2011-05-24 12:34:08 +03:00
Qt by Nokia 38be0d1383 Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 12:05:43 +02:00