| Commit message (Collapse) | Author | Age | Files | Lines |
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In c2049f67e4cfe5f09e1b033b910cb37d043a287e, all DBus I/O was
moved into a service thread. The dispatch lock used to protect
DBus I/O in the threading setup before that commit. It is not
needed anymore.
No discernible difference in QtDBus benchmarks, roughly 500
bytes code size reduction on AMD64. The main point is to reduce
confusion from unnecessary code.
Change-Id: Idcbdd2b7e2b317cf6da0b5bfc5ec70afed1f1b48
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Reported by clang-tidy. Skipped fixes in implementation files, only
changed headers.
Change-Id: I5cfd266b3d4046f90baebc0c538b1b6ab03a02d2
Reviewed-by: Volker Krause <volker.krause@kdab.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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The new modular configuration system requires one global
header per module, that is included by all other files in
this module.
QtDBus already had such a header, but its name (qdbusmacros.h) was
not in line with what's being used in all other modules. So
add a qtdbusglobal.h header, and turn qdbusmacros.h into a a forwarding
header to that new global header file.
Change-Id: Ib7eb2484c7b8b588eb89bf3290cb6c1c7c391fe2
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
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From Qt 5.7 -> tools & applications are lisenced under GPL v3 with some
exceptions, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new GPL-EXCEPT header instead of LGPL21 one
(in those files which will be under GPL 3 with exceptions)
Change-Id: I42a473ddc97101492a60b9287d90979d9eb35ae1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
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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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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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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 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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Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.
Outdated header.LGPL removed (use header.LGPL21 instead)
Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)
Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination
Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
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Conflicts:
src/plugins/platforms/xcb/qxcbwindow.cpp
Change-Id: Iad9ef6bf7d6111efba8232a7d9b46bb9974912f5
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We don't need two anymore because they now protect the same thing: the
state of the DBusConnection. The difference existed when it was possible
for two threads to access the DBusConnection at the same time: one doing
dispatching and one doing something else. Unfortunately, even though
DBusConnection supports this, QtDBus doesn't.
From d47c05b1889bb4f06203bbc65f4660b8d0128954 (2008-10-08):
Details: if we're removing a timer or a watcher from our list,
there's a race condition: one thread (not the QDBusConnection thread)
could be asking for the removal (which causes an event to be sent),
then deletes the pointer. In the meantime, QDBusConnection will
process the timers and socket notifiers and could end up calling
lidbus-1 with deleted pointers.
That commit fixed the race condition but introduced a deadlock.
Task-number: QTBUG-42189
Change-Id: I034038f763cbad3a67398909defd31a23c27c965
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: Albert Astals Cid <albert.astals@canonical.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
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We lock it before dbus_connection_send_with_reply (the async version) in
QDBusConnectionPrivate::sendWithReplyAsync. We weren't locking it before
send_with_reply_and_block and we apparently should. The locking around
the dbus_connection_send function might not be necessary, but let's do
it to be safe.
The lock now needs to be recursive because we may be inside
QDBusConnectionPrivate::doDispatch.
Task-number: QTBUG-42189
Change-Id: I7b6b350909359817ea8b3f9c693bced042c9779a
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
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- Renamed LICENSE.LGPL to LICENSE.LGPLv21
- Added LICENSE.LGPLv3
- Removed LICENSE.GPL
Change-Id: Iec3406e3eb3f133be549092015cefe33d259a3f2
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
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Change-Id: Ic804938fc352291d011800d21e549c10acac66fb
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
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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>
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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>
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Replace Nokia contact email address with Qt Project website.
Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
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Change-Id: I02f2c620296fcd91d4967d58767ea33fc4e1e7dc
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
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Updated version of LGPL and FDL licenseheaders.
Apply release phase licenseheaders for all source files.
Reviewed-by: Trust Me
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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
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