We still support buffering via stdio.h (FILE*), but QFSFileEngine itself
is not responsible for the buffering. Opening by file name (not FILE*
and not file descriptor) already added the Unbuffered flag.
Change-Id: I2bc52f3c7a574209b213fffd1498d4e3f78fe1bf
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Recent Darwin system have a new system call that allows cloning the
contents of a file from another one if the underlying file system (for
example, APFS) supports it.
Change-Id: I90ec53b8abd2b1dc4000070f295e226d0fb4c672
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
cf53aa21bf and 3aaa5d6b32
were reverted because of reconstruction in 5.7.
defineTest(qtConfTest_checkCompiler) in configure.pri is smart
enough to cover the case in a9474d1260.
DirectWrite: Fix advances being scaled to 0
Since 131eee5cd, the stretch of a font can be 0, meaning
"whatever the font provides". In combination with ec7fee96,
this would cause advances in the DirectWrite engine to be scaled to
0, causing the QRawFont test to fail.
Conflicts:
configure
mkspecs/features/uikit/device_destinations.sh
mkspecs/features/uikit/xcodebuild.mk
src/corelib/global/qglobal.cpp
src/corelib/global/qnamespace.qdoc
src/plugins/platforms/cocoa/qcocoamenuitem.h
src/plugins/platforms/windows/qwindowsservices.cpp
src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp
src/plugins/platforms/windows/qwindowsfontenginedirectwrite.cpp
src/widgets/kernel/qapplication.cpp
tests/auto/widgets/dialogs/qfiledialog/tst_qfiledialog.cpp
tests/auto/widgets/dialogs/qfiledialog2/tst_qfiledialog2.cpp
Change-Id: I4656d8133da7ee9fcc84ad3f1c7950f924432d1e
The platform is not supported since Qt 5.7
Task-number: QTBUG-55331
Change-Id: I98b90d574d9a76c4281852d93818620b5f489117
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
The printf-style version of QDebug expands to a lot less code than the
std::ostream-style version. Of course, you pay in type safety (but
compilers warn about it these days), you cannot stream complex Qt
types and streaming QStrings is awkward, but in many cases you
actually improve on readability.
But the main reason is that something that's not supposed to be
executed under normal operation has no business bloating executable
code size.
This is not an attempt at converting all qWarnings() to printf-style,
only the low-hanging fruit.
In this second part, replace
qWarning() << "" << non-QString
with
qWarning("..%.", non-QString).
QString (and QUrl etc) have special escaping handling when streamed
into QDebug, so leave those alone. They also seem to expand to less
code than the qPrintable() alternative, so there's no reason to
replace them.
Saves 2KiB, 3.4KiB, ~750b and ~450b in text size in QtCore, Gui,
Network and Widgets, resp., on optimized GCC 5.3 AMD64 builds.
Change-Id: Iae6823e543544347e628ca1060d6d51e3b04d3f4
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
I wrote a script to help find the files, but I reviewed the
contributions manually to be sure I wasn't claiming copyright for search
& replace, adding Q_DECL_NOTHROW or adding "We mean it" headers.
Change-Id: I7a9e11d7b64a4cc78e24ffff142b506368fc8842
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
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>
Apparently, it is considered valid to call the function with
'data' set to nullptr, and 'len' to zero. But doing so
invokes undefined behavior because nullptr is passed to
fwrite().
Fix by protecting the loops with 'if (len)'.
Found by UBSan:
qtbase/src/corelib/io/qfsfileengine.cpp:732:84: runtime error: null pointer passed as argument 1, which is declared to never be null
Change-Id: Idfe23875c868ebb21d2164550de3304d2f01e9df
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Use the name "OS X" instead of "Mac OS X", "Mac OS" and "OSX",
and mention iOS. Replace "Carbon Preferences API" by
"CFPreferences API" in the QSettings documentation.
Change-Id: Ia7f9fb874276c7c445a1649df521b96ff43daa0c
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Venugopal Shivashankar <venugopal.shivashankar@digia.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
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>
Use qint64 wherever possible. The linear buffer is never requested to
allocate that much memory (always limited), but at least we ensure we're
not dropping bits where we shouldn't.
Windows's POSIX compatibility layer is never largefile enabled, so it is
always necessary to chunk large reads and writes. On Unix, this will
be rare, unless someone passed -no-largefile to configure, for some
weird reason.
Unfortunately, this is not testable, unless we can allocate a buffer
with 4 GB or more in size. The test for this would be to open a file we
know to be small, then try to read 4 GB + 1 byte. If everything works
correctly, we'll read the full file; if there was a truncation, we'd
read one byte.
Change-Id: If3ee511bf1de17e0123c85bbcaa463b9972746ce
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
On Unix, those functions are already #define'd to qt_safe_read and
qt_safe_write, which do the necessary EINTR handling. On Windows, EINTR
cannot happen.
Change-Id: I50c46472c04bd90a0bac51c725cc86311ae905c8
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
QT_CLOSE is #defined to be qt_safe_close which already performs
the EINTR loop. So there's no need of doing other loops
(either by hand or by the EINTR_LOOP macro).
Change-Id: Icca256124def5ab5d79c2ba101c6f889c85d19da
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
C11 §7.21.3.4 [Files] says that
The value of a pointer to a FILE object is indeterminate
after the associated file is closed
POSIX.1-2013 reinforces by saying that
After the call to fclose(), any use of stream results
in undefined behavior.
This means we can't call fclose() again on a FILE *,
even if fclose() returned EOF and set errno to EINTR.
Change-Id: I282f4ff926e3c134729defa290c80d42431e97ce
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
If we write to a file, its size changes. We should drop previous size
caches.
Change-Id: Ib687c91e5fc88cab588c89023f23da9622160da9
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Factor out code to clear all mappings into
QFSFileEnginePrivate::unmapAll() and call that
from QTemporaryFile.
Task-number: QTBUG-39976
Change-Id: Ic1ceeba0ba4451866f1081fee430e5c458c0819d
Reviewed-by: Jonathan Liu <net147@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Default values should have mark-up to denote that they are code.
This commit changes:
-"property is true" to "property is \c true".
-"Returns true" to "Returns \c true".
-"property is false" to "property is \c false".
-"returns true" to "returns \c true".
-"returns false" to "returns \c false".
src/3rdparty and non-documentation instances were ignored.
Task-number: QTBUG-33360
Change-Id: Ie87eaa57af947caa1230602b61c5c46292a4cf4e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
CreateFileMapping() returns NULL in case of an error.
The patch corrects the wrong testing on INVALID_HANDLE_VALUE, and sets
NULL for invalid handles.
Change-Id: Iaab4945ed88ee92bbf9a0871e95a5820dd1a56ed
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
QFSFileEngine::rename() on Windows doesn't overwrite the existing destination.
Keep that unchanged (it's the desired behavior in QFile::rename), and
provide cross-platform rename-overwrite behavior in the new method.
This is needed by QSaveFile.
Change-Id: I5e753d289d8a53692530a48a1783d62e26169cdc
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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>
This abstraction imposed serious performance penalties and is being
dropped from the public API.
In particular, by allowing file names to be arbitrarily hijacked by
different file engines, and requiring engines to be instantiated in
order to decide, it imposed unnecessary overhead on all file operations.
Another flaw in the design with direct impact on performance is how
engines have no way to provide (or retain) additional information
obtained when querying the filesystem. In many places this has meant
repeated operations on the file system, where useful information is
immediately discarded to be queried again subsequently.
For Qt 4.8 a major refactoring of the code base took place to allow
bypassing the file-engine abstraction in select places, with
considerable performance gains observed. In Qt 5 it is expected we'll be
able to take this further, reaping even more benefits, but the
abstraction has to go.
[Dropping this now does not preclude that virtual file systems make an
appearance in Qt at a later point in Qt 5's lifecycle. Hopefully with a
new and improved abstraction.]
Forward declarations for QFileExtension(Result) were dropped, as the
classes were never used or defined.
Tests using "internalized" classes will only fully run on developer
builds. QFSFileEngine was removed altogether from exception safety test,
as it isn't its intent to test internal API.
Change-Id: Ie910e6c2628be202ea9e05366b091d6d529b246b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
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>
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
Nikita Krupenko
Thiago Macieira
Jake Petroules
Liang Qi
Venugopal Shivashankar
Marc Mutz
Friedemann Kleint
Liang Qi
Jani Heikkinen
Alexander Volkov
Gabriel de Dietrich
Matti Paaso
Frederik Gladhorn
Giuseppe D'Angelo
Friedemann Kleint
Jerome Pasion
Peter Kümmel
Sergio Ahumada
David Faure
Tasuku Suzuki
Iikka Eklund
João Abecasis
Xizhi Zhu
Jason McDonald
Jyri Tahtela
David Boddie
Qt by Nokia