| Commit message (Collapse) | Author | Age | Files | Lines |
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QTimeZonePrivate::dataForLocalTime() makes repeated use of the times
sixteen hours before and after the target local time, so compute those
up front once instead of each time they're needed, giving them
expressive names and making code terser.
Change-Id: I4b682cc6de2adb98c3ee5489eec4b63ac1090961
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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The tz database's latest update now records the cases where summer
time is deemed standard and winter-time is deemed DST. (This doesn't
change what the offsets are, just how they're described.) The
resulting negative DST offsets mess up the algorithm for converting
local time to UTC, causing tst_QTimeZone::transitionEachZone() to fail
for Europe/Dublin in the hour before its transition; so refine the
algorithm to cope with the new case.
Task-number: QTBUG-69980
Change-Id: I24003872fffb03b2903161859158d0ce998b3073
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Creating and sorting a list of bytearrays just to check if one entry is
present, is really overkill. By adding a new virtual method
isTimeZoneIdAvailable() in the backend classes, we can do this much more
efficiently.
Implemented for Utc and Tz backends, the others fall back to the
slow way.
The new benchmark shows, in release mode:
Before: 43 msecs per iteration (total: 86, iterations: 2)
After: 1.1 msecs per iteration (total: 73, iterations: 64)
Change-Id: Ic0d79a41d74e2ce6aa088fa7986c41d33902c36b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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A transition time may represent the beginning of time; as such,
arithmetic on it might underflow, e.g. on adding a negative zone
offset to compare with a given time. So move the arithmetic to the
other side of the comparison in such cases.
Change-Id: I1697a03ebf74679ff86059664dd2b173b9c4c367
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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When QDateTimeParser learns to parse zones, it'll need to know the
valid range of offsets.
Change-Id: I44cd88a140ebaf6a2b98b0f9a1be0cbc7a35bae4
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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There's nothing wrong with cloning a const QTimeZonePrivate, so make
clone() const.
Also, if you're cloning a QTzTimeZonePrivate, you already know that
you get a QTzTimeZonePrivate back. C++ supports covariant return types
for this reason, so use them.
Change-Id: I60e19e89b1b7bad080c552f1baca314ab0a6295e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Conflicts:
configure
qmake/Makefile.unix.macos
qmake/Makefile.unix.win32
qmake/generators/win32/msvc_vcproj.cpp
src/3rdparty/pcre/qt_attribution.json
src/corelib/io/qsettings.cpp
src/corelib/kernel/qdeadlinetimer.cpp
src/platformsupport/kmsconvenience/qkmsdevice.cpp
src/platformsupport/kmsconvenience/qkmsdevice_p.h
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldeviceintegration.cpp
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_egldevice/qeglfskmsegldevicescreen.cpp
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmsdevice.cpp
src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmsscreen.h
tests/manual/qstorageinfo/printvolumes.cpp
tools/configure/configureapp.cpp
Change-Id: Ibaabcc8e965c44926f9fb018466e8b132b8df49e
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And remove the QT_USE_ICU define.
Change-Id: I8134ee18af7c90ed7070926ca31b3a57b3ec37dd
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
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Such mappings are ill-defined in the presence of daylight-savings time
(DST); at its transitions, you need information about whether DST is
active or not to determine the correct UTC value. Existing code did
not have a way to be told that hint, so could not be correct.
Fixing this required changing the (thankfully private) APIs by which
QDateTime accessed QTimeZone's information stipulated by zone time.
In QDateTime, this required propagating the needed hint, when DST
status was known.
QAndroidTimeZonePrivate overloaded QTimeZonePrivate::dataForLocalTime
with an implementation that works whenever !hasTransitions(); the base
implementation handled this case lamely, so I've moved the Android
implementation there, to have only one place for both re-writes.
Amended tst_QDateTime's expected failures; passing a date and time to
the constructor *is* ambiguous when the moment indicated is in a
transition. I have changed which way we resolve that ambiguity.
Added round-trip test of QDateTime's fromMSecs/toMSecs (but as a
QTimeZone test, since that's what's actually getting tested), based on
a test-case from Marko Kangas. Initially failed for various zones,
each at one hour-offset; and, on some platforms, for some zones, at
all offsets. These last revealed that a platform may claim to have
zone information yet, for some zones, lack it (or have very incomplete
information). In each case, despite this, the platform does give
offsetFromUtc(). (The test also found another pre-existing bug on
Linux; fixed in an earlier commit.)
To accommodate these gaps in transition data, the transition-based
code now falls back to the offsetFromUtc()-based code (used when there
are no transitions) if it can't find a previous transition (which, in
any case, it needs to do its job).
Task-number: QTBUG-56460
Task-number: QTBUG-56397
Task-number: QTBUG-52284
Change-Id: I2f7422a9e9d3767940b1901d887c6a2c1f36ac9f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Conflicts:
src/corelib/io/qtemporarydir.cpp
One side encapsulated a repeated piece of #if-ery in a local define;
the other added to the #if-ery. Made its addition to the other's.
src/corelib/kernel/qeventdispatcher_unix_p.h
One side moved some members into a struct; this collided with a #undef
check that neither side now has. Discarded the #undef part.
src/gui/opengl/qopengltexturehelper_p.h
5.7 deleted a bunch of methods; not clear why merge got confused.
src/tools/moc/moc.cpp
One added a name to the copyright header; another changed its URL.
Change-Id: I9e9032b819f030d67f1915445acf2793e98713fa
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Most fields were over-written after setting invalid. The two that
weren't (not used by QUtcTimeZonePrivate) should be (if only for
uniformity with other QTimeZonePrivate variants), so set them to
sensible values.
Change-Id: I824ca0108d5b6bc322f76a0d1683342f789523b1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Conflicts:
src/network/access/qftp.cpp
src/widgets/itemviews/qheaderview.cpp
src/widgets/itemviews/qlistview.cpp
tests/auto/network/access/qftp/tst_qftp.cpp
Change-Id: I9f928f25d45d8944dd60bb583f649fc1615bc5d9
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Its "rules" are actually guidelines, its suggested regex was wrong,
its actual implementation was fuzzier than its documentation suggested
and the exception it tacitly permitted should be distinguished from
the stricter rules it otherwise appears to implement. There was also
a redundant check ('-' had been handled earlier in the chained if).
Explain why the situation is tricky, fix the regex mentioned (making
it more readable, too) and note what might be worth doing a little
more fussily, without actually changing code behavior.
Change-Id: I93fa0da0640a134e5d84011b435a186576824063
Reviewed-by: Marc Mutz <marc.mutz@kdab.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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The first two are the "proper" terms; the last is a colloquialism.
Also amended "daylight savings" (which summons to mind a hybrid of
"daylight robbery" and "bargain-basket savings").
Improved related wording in many of the places amended.
Task-number: QTBUG-49308
Change-Id: I726f18a344b2fe37f765a14684d1447c8b7ab00c
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
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Reduces reallocations.
Change-Id: Ib63539fb690a80245d8fe81ff8468e79ffa8e57c
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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Conflicts:
examples/xml/htmlinfo/simpleexample.html
examples/xml/rsslisting/rsslisting.cpp
qmake/generators/win32/msbuild_objectmodel.cpp
src/3rdparty/harfbuzz-ng/src/hb-private.hh
src/corelib/global/qlogging.cpp
src/corelib/io/qstorageinfo_unix.cpp
src/corelib/thread/qwaitcondition_unix.cpp
src/gui/kernel/qguiapplication.cpp
src/plugins/platforms/linuxfb/qlinuxfbintegration.cpp
src/testlib/doc/src/qt-webpages.qdoc
tests/auto/other/qaccessibility/tst_qaccessibility.cpp
Change-Id: Ib272ff0bc30a1a5d51275eb3cd2f201dc82c11ff
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Those QTimeZones failed to convert to other timezones because the data()
virtual function was never overridden and reimplemented. That meant all
QUtcTimeZonePrivate objects were *really* UTC, with no offset.
Task-number: QTBUG-44600
Change-Id: Ia0aac2f09e9245339951ffff13c5294bb783c674
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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QSet, as a node-based container, requires one memory allocation per element
inserted. QList, as a contiguous-memory container (at least in the case of
a QByteArray payload), requires one memory allocation per container.
The higher lookup speed might still speak for using QSet, but there are only
two uses of the sets:
1. Checking for existence (or lack thereof) of timezone names.
For this, first generating a container full of data just to check for
existence of one item of data is extremely wasteful. The QTZPrivate
API should be extended to allow said lookup to be performed on the
native data store instead.
That leaves
2. Returning a sorted(!) list(!) from the public QTimeZone API.
There is no reason why, during the construction of those sorted
lists, the data should be held in a set. Instead, the well-known
technique of first cramming everything into a result container,
which is subsequently sorted and has its duplicates removed,
can be used here.
Saves more than 8K of text size on AMD64 stripped release builds.
Change-Id: I71c2298e94e02d55b0c9fb6f7ebeaed79a1fe2db
Reviewed-by: Thiago Macieira <thiago.macieira@intel.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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- 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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Lots of code depended on an indirect includes from qstringlist.h.
Change-Id: I33d0dce33d64302d6c0e49180cc1249b90ab27c5
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
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This function is used in the named timezone ctor and was using QByteArray::split(),
followed by size checks and a linear scan for invalid chars per section. The use of
split() resulted in a lot of memory allocations and, unsurprisingly, bad performance.
The new code just performs one linear scan through the byte array, calculating
section sizes on the fly.
Benchmark results (with the test data in tst_QTimeZone::isValidId_data()) show
typical speedups of ~10x for valid IDs:
RESULT : tst_QTimeZone::isValidId_bench():"minimal middle":
- 0.00036 msecs per iteration (total: 95, iterations: 262144)
+ 0.000035 msecs per iteration (total: 74, iterations: 2097152)
Even in the sweet-spot case of the old code---a space character anywhere in the
string, checked for before the split---the new code is anywhere between slightly
faster and not much slower:
RESULT : tst_QTimeZone::isValidId_bench():"invalid char ' ' front":
- 0.000011 msecs per iteration (total: 94, iterations: 8388608)
+ 0.000010 msecs per iteration (total: 86, iterations: 8388608)
RESULT : tst_QTimeZone::isValidId_bench():"invalid char ' ' middle":
- 0.000014 msecs per iteration (total: 62, iterations: 4194304)
+ 0.000016 msecs per iteration (total: 69, iterations: 4194304)
RESULT : tst_QTimeZone::isValidId_bench():"invalid char ' ' back":
- 0.000018 msecs per iteration (total: 79, iterations: 4194304)
+ 0.000023 msecs per iteration (total: 98, iterations: 4194304)
This is not surprising, as the space character was singled out for a fast-exit
check before. For any other invalid character, the new version is anywhere from
15x to 35x faster:
RESULT : tst_QTimeZone::isValidId_bench():"invalid char ? front":
- 0.00034 msecs per iteration (total: 91, iterations: 262144)
+ 0.000010 msecs per iteration (total: 87, iterations: 8388608)
RESULT : tst_QTimeZone::isValidId_bench():"invalid char ? middle":
- 0.00036 msecs per iteration (total: 96, iterations: 262144)
+ 0.000016 msecs per iteration (total: 68, iterations: 4194304)
RESULT : tst_QTimeZone::isValidId_bench():"invalid char ? back":
- 0.00035 msecs per iteration (total: 94, iterations: 262144)
+ 0.000021 msecs per iteration (total: 92, iterations: 4194304)
If there was a deeper reason to single out the space character, that fast-exit
path can easily be restored.
This function is often used in conjunction with availableTimeZoneIds(), which
currently vastly dominates the runtime of the function calling both, but I'll
add another optimization for the common use-case of just checking for a time-zone's
existence in a subsequent commit.
Change-Id: Ife1d096fcd39464083ea464c23e49ad98fabf345
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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It is a minor reduction, in release build it is ~200 bytes
Change-Id: I4f7972c95769f2e0ca1ddc935ff7a0a6b4379e2a
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
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Complete changes from using Olsen/Olson in the code to IANA. Completes
a change started in 5.2 release branch on the public occurrences.
Change-Id: Ib077fcda2c77eef6f04ec28901d8d2d7210b8c72
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Fix isValidId() which was failing valid IDs because it was splitting
name parts by \ instead of /. it was also rejecting offset from UTC
formats names. Add unit tests.
Task-number: QTBUG-35025
Change-Id: I4d23d2e54f4a9fac9afcc4eff0a02d6f4af21385
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Sizes gained (measured on 64-bit systems)
BezierEase: shrunk 8 bytes
QRegExpCharClass: shrunk 8 bytes
QRegularExpressionPrivate: shrunk 8 bytes
QTimeLinePrivate: shrunk 8 bytes
QUtcTimeZonePrivate: shrunk 8 bytes
QTextStreamPrivate: shrunk 8 bytes
QDirPrivate: shrunk 8 bytes
QFileDevicePrivate: shrunk 8 bytes
Not done:
QRegExpEngine: 18 bytes in 6 holes (you deserve high memory usage if
you're still using QRegExp)
QTextBoundaryFinder: 8 bytes in 2 holes (public class)
QIODevicePrivate: 6 bytes in 2 holes, but there's no gain in packing
QProcessPrivate: too complex and my copy is modified
QThreadData: awaiting change from Marc
Change-Id: I2a388b5ce17dec0dafcef18ed2e80d0379aa7d1e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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The private method dateForLocalTime() was not checking that transitions
were valid, resulting in infinite looping when a time zone didn't have
any future transitions.
Change-Id: I0e5d07063861778dd86056a80c36fdd9f9d36133
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
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Fix parsing of TZ file abbreviations, to correctly return cases where
POSIX rule doesn't have separate DST rules, and where abbreviation
is a sub-string of another abbreviation, otherwise any toString() call
will crash.
Add test to exercise all available time zones, especially useful for TZ
file to confirm all file format variations dealt with. Fix parsing of
Version 3 of TZ file, and ICU display name, to allow all files generated
from release 2013f to pass, otherwise isValid() call will crash.
Task-number: QTBUG-34061
Change-Id: Ie0b6abc218adff1c8967eb33fdb0762041d2305f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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The name Olson was misspelled as Olsen in the public api of QTimeZone
which is needed to be fixed before first public release in 5.2 would
freeze the api and prevent it being fixed. It has been decided that
renaming as IANA ID would be more future-proof.
Fixes to the private code will be done separately to keep this patch
against release branch to the minimum required.
Task-number: QTBUG-34735
Change-Id: I8ee90644862c907f6d1937b8536f0c02583ae736
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
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Add support to QDateTime for time zones using the new QTimeZone class.
[ChangeLog][QtCore][QDateTime] Add support for a new Qt::TimeZone
spec to be used with QTimeZone to define times in a specific
time zone.
Change-Id: I21bfa52a8ba8989b55bb74e025d1f2b2b623b2a7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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Implement the new QTimeZone class based on the Olsen Time Zone ID's.
This is the base implementation and does not include the Platform
backends which are implemented separately.
This change does include a default UTC backed to be used if no Platform
backend is available, i.e. if QT_NO_SYSTEMLOCALE is set and ICU is not
configured. This backend also provides a default set of time zones in
the standard "UTC+00:00" offset format that are guaranteed to always
exist regardless of the Platform backend.
This change includes conversion functions between the Olsen ID's and
Windows ID's using a conversion table based on Unicode CLDR data.
This is implemented for all platforms for scenarios such as a Linux
program needing to communicate with a Windows Exchange Server using
the Windows ID.
The CLDR conversion table is included under the UNICODE license, see
http://unicode.org/copyright.html for details.
[ChangeLog][QtCore][QTimeZone] Added new QTimeZone class to support
time tone calculations using the host platform time zone database
and the Olsen time zone ID's.
Change-Id: Ibb417d08cf2663a0979d2be855d2c6ad6ad01509
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
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