There were two constuctors offering essentially the same functionality.
One taking the QStatic*Data<N> struct, the other what essentially
amounts to a pointer wrapper of that struct. The former was dropped and
the latter untemplatized and kept, as that is the most generic and
widely applicable. The template parameter in the wrapper was not very
useful as it essentially duplicated information that already maintained
in the struct, and there were no consistency checks to ensure they were
in sync.
In this case, using a wrapper is preferred over the use of naked
pointers both as a way to make explicit the transfer of ownership as
well as to avoid unintended conversions. By using the reference count
(even if only by calling deref() in the destructor), QByteArray and
QString must own their Data pointers.
Const qualification was dropped from the member variable in these
wrappers as it causes some compilers to emit warnings on the lack of
constructors, and because it isn't needed there.
To otherwise reduce noise, QStatic*Data<N> gained a member function to
directly access the const_cast'ed naked pointer. This plays nicely with
the above constructor. Its use also allows us to do further changes in
the QStatic*Data structs with fewer changes in remaining code. The
function has an assert on isStatic(), to ensure it is not inadvertently
used with data that requires ref-count operations.
With this change, the need for the private constructor taking a naked
Q*Data pointer is obviated and that was dropped too.
In updating QStringBuilder's QConcatenable specializations I noticed
they were broken (using data, instead of data()), so a test was added to
avoid this happening again in the future.
An unnecessary ref-count increment in QByteArray::clear was also
dropped.
Change-Id: I9b92fbaae726ab9807837e83d0d19812bf7db5ab
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This will allow fixing of QTBUG-10160 in Qt 5.1.
Change-Id: I1ea7579cb4227f9940847c62d5a520c7cee3b0c5
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
One static function was only being used by the other, so just merge
them and reduce the work for the compiler.
Change-Id: Ia7a1c46ace6254633450632fae7ab35816ff13bf
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
..\..\corelib\io\qfsfileengine_win.cpp(443) : error C3861: '_fileno': identifier not found
..\..\corelib\io\qfsfileengine_win.cpp(468) : error C3861: '_fileno': identifier not found
..\..\corelib\io\qfsfileengine_win.cpp(602) : error C3861: '_fileno': identifier not found
..\..\corelib\io\qfsfileengine_win.cpp(847) : error C3861: '_fileno': identifier not found
..\..\corelib\io\qfsfileengine_win.cpp(909) : error C3861: '_fileno': identifier not found
Change-Id: Ib6bed4814fce162e3065848c835f4774f0cbad01
Reviewed-by: Debao Zhang <dbzhang800@gmail.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
Algorithmic complexity attacks against hash tables have been known
since 2003 (cf. [1, 2]), and they have been left unpatched for years
until the 2011 attacks [3] against many libraries /
(reference) implementations of programming languages.
This patch adds a qHash overload taking two arguments: the value to
be hashed, and a uint to be used as a seed for the hash function
itself (support the global QHash seed was added in a previous patch).
The seed itself is not used just yet; instead, 0 is passed.
Compatibility with the one-argument qHash(T) implementation is kept
through a catch-all template.
[1] http://www.cs.rice.edu/~scrosby/hash/CrosbyWallach_UsenixSec2003.pdf
[2] http://perldoc.perl.org/perlsec.html#Algorithmic-Complexity-Attacks
[3] http://www.ocert.org/advisories/ocert-2011-003.html
Task-number: QTBUG-23529
Change-Id: I1d0a84899476d134db455418c8043a349a7e5317
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
tst_rcc and tst_qdom rely on specific QHash orderings inside
rcc and QDom respectively (see QTBUG-25078 and QTBUG-25071).
A workaround is added to make them succeed: QDom checks for
all possible orderings, and rcc initializes the hash seed to 0
if the QT_RCC_TEST environment variable is set.
Change-Id: I5ed6b50602fceba731c797aec8dffc9cc1d6a1ce
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
Cleaned up preprocessor code to have a single definition for
QStaticStringData. A new qunicodechar typedef is introduced representing
a 2-byte integral type that can be used to represent a UTF-16 codepoint.
When QT_NO_UNICODE_LITERAL is not defined, QT_UNICODE_LITERAL converts a
US-ASCII string literal into a (native endian) UTF-16 string literal of
qunicodechar type.
Change-Id: I04822c4cdc0b240bc0fe113aba897348b7316932
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Despite being documented, it was never emitted, and I can't find
any use of it in the history either.
Change-Id: If89b401004d14ef068ada6a4099bef9dc47936c9
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Month Names and Standalone Month Names are stored separately, but for
majority of locales the names are the same and so storage is duplicated.
By storing both sets of names in the same array 50KB is saved in
libQtCore.so on Linux.
Depends on change Ic84bbc82 in branch api_review for CLDR 1.9.1
Change-Id: I83224ebc2180ee6de69797fa50d38348acc94107
Reviewed-by: Denis Dzyubenko <denis.dzyubenko@nokia.com>
Algorithmic complexity attacks against hash tables have been known
since 2003 (cf. [1, 2]), and they have been left unpatched for years
until the 2011 attacks [3] against many libraries /
(reference) implementations of programming languages.
This patch adds a global integer, to be used as a seed for the hash
function itself. The seed is randomly initialized the first time a
QHash detaches from shared_null.
Right now the seed is not used at all -- another patch will modify
qHash to make use of it.
[1] http://www.cs.rice.edu/~scrosby/hash/CrosbyWallach_UsenixSec2003.pdf
[2] http://perldoc.perl.org/perlsec.html#Algorithmic-Complexity-Attacks
[3] http://www.ocert.org/advisories/ocert-2011-003.html
Task-number: QTBUG-23529
Change-Id: I7519e4c02b9c2794d1c14079b01330eb356e9c65
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
It is an extension coming from the use case when you, for instance, need to
implement a countdown timer in client codes, and manually maintain a dedicated
variable for counting down with the help of yet another Timer. There might be
other use cases as well. The returned value is meant to be in milliseconds, as
the method documentation says, since it is reasonable, and consistent with the
rest (ie. the interval accessor).
The elapsed time is already being tracked inside the event dispatcher, thus the
effort is only exposing that for all platforms supported according to the
desired timer identifier, and propagating up to the QTimer public API. It is
done by using the QTimerInfoList class in the glib and unix dispatchers, and the
WinTimeInfo struct for the windows dispatcher.
It might be a good idea to to establish a QWinTimerInfo
(qtimerinfo_win{_p.h,cpp}) in the future for resembling the interface for
windows with the glib/unix management so that it would be consistent. That would
mean abstracting out a base class (~interface) for the timer info classes.
Something like that QAbstractTimerInfo.
Test: Build test only on (Arch)Linux, Windows and Mac. I have also run the unit
tests and they passed as well.
Change-Id: Ie37b3aff909313ebc92e511e27d029abb070f110
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Unify TypeDefinitions specializations. I'm not aware of any reason why
QVariant should have a separate set of supported types during
bootstrapping phase. It would cause only crashes.
As a side effect the patch reduces size of core and gui libraries.
Change-Id: I5140d9d3daee39a0171bc718bf46dab6b28085ec
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Certain QSqlDriver functions were marked to be made virtual in Qt5.
subscribeToNotification, unsubscribeFromNotification,
subscribedToNotifications, isIdentifierEscaped, and stripDelimiters.
This patch makes them virtual and removes the no longer needed
Implementation counterpart functions. It also updates the relevant
drivers. This patch has no regressions on the tests in
tests/auto/sql/kernel/, tested with sqlite and postgres.
Change-Id: Ia2e1c18dfb803531523a456eb4e710031048e594
Reviewed-by: Mark Brand <mabrand@mabrand.nl>
It is already obsolete since the beginning of time (Qt 4.5).
Change-Id: Ia2f9d934f0c0bd2038d693a29d1315867a526dfe
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Commit 01674860ac marked
QUuid as Q_MOVABLE_TYPE, but it's even primitive:
Every bit pattern represents a valid QUuid object (if
not a valid UUID), and memcpy() can be used to obtain
a valid, independent copy of the object.
It might not be a POD, but its close enough.
Change-Id: I0fd2d11472590688a91e9ee424732e4d5ba15df8
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Denis Dzyubenko <denis.dzyubenko@nokia.com>
While QArrayDataPointer offers generic detach() functionality, this is
only useful for operations that may modify data, but don't otherwise
affect the container itself, such as non-const iteration, front() and
back().
For other modifying operations, users of the API typically need to
decide whether a detach is needed based on QArrayData's requirements
(is data mutable? is it currently shared?) and its own (do we have
spare capacity for growth?).
Now that data may be shared, static or otherwise immutable (e.g.,
fromRawData) it no longer suffices to check the ref-count for
isShared().
This commit adds needsDetach() which, from the point-of-view of
QArrayData(Pointer), answers the question: 'Can contained data and
associated metadata be changed?'.
This fixes QArrayDataPointer::setSharable for static data (e.g.,
Q_ARRAY_LITERAL), previously it only catered to shared_null.
SimpleVector is also fixed since it wasn't checking Mutability and it
needs to because it supports fromRawData().
Change-Id: I3c7f9c85c83dfd02333762852fa456208e96d5ad
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This enables a truncating resize() to be implemented. It is similar to
destroyAll(), but updates the size() as it goes, so it is safe to use
outside a container's destructor (and doesn't necessarily destroy all
elements).
The appendInitialize test was repurposed and now doubles as an
additional test for QArrayDataOps as well as exercising SimpleVector's
resize().
Change-Id: Iee94a685c9ea436c6af5b1b77486734a38c49ca1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This follows QArrayData::detachFlags's lead. Given the (known) size for
a detached container, the function helps determine capacity, ensuring
the capacityReserved flag is respected.
This further helps aggregating behaviour on detach in QArrayData itself.
SimpleVector was previously using qMax(capacity(), newSize), but there's
no reason to pin the previous capacity value if reserve() wasn't
requested. It now uses detachCapacity().
Change-Id: Ide2d99ea7ecd2cd98ae4c1aa397b4475d09c8485
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Adds given number of default-initialized elements at end of array. For
POD types, initialization is reduced to a single memset call. Other
types get default constructed in place.
As part of adding a test for the new functionality the arrayOps test was
extended to verify objects are being constructed and assigned as
desired.
Change-Id: I9fb2afe0d92667e76993313fcd370fe129d72b90
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Commit cc3ff3c1 introduced uncoditional use of _BitScanForward on
Windows, so adapt include conditions to match use of function.
Change-Id: I46ea4212ea3a01d9c4ecb19377b21e9b0f16e179
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Callers should just call the standard allocation functions directly.
Adding an extra function call onto all basic memory management for the sake of
making it instrumentable in rare cases isn't really fair to everyone else.
What's more, this wasn't completely reliable, as not everything was using them
in a number of places. Memory management can still be overridden using tricks
like LD_PRELOAD if needed.
Their aligned equivilents cannot be deprecated, as no standard equivilents
exist, although investigation into posix_memalign(3) is a possibility
for the future.
Change-Id: Ic5f74b14be33f8bc188fe7236c55e15c36a23fc7
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
It's the index number of the translation to be used.
Change-Id: I959c6aaa1aad09e74286d201ea356bfc4409f02a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
Moved this simple sanitation out of do_load as it will prevent us from
loading misplaced (or misfound) files into memory in the first place.
We'll still load anything minimally looking like a translation file.
Change-Id: Ia138be010979d4a66d330f7414fce3df20727e68
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
For data allocated and maintained by QByteArray, there's a guarantee
that data() is null-terminated. This holds true even for null and empty,
where logically the terminating character should never be dereferenced.
For tests that modify or generate QByteArrays, this ensures the
invariant is kept.
In the toFromHex() text, const-ness of temporary variables was dropped
to enable the test macro to be used, as the qualification didn't add
much to the test otherwise.
Change-Id: I7ee52e79e3a9df7de18c743f3698dab688e6bf0e
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
rulesSize is passed from unsigned variable numerusRulesLength, so don't
bring sign bit into equation; array index variable i also made unsigned.
Change-Id: I0cb4e8483272c1e60339298149fb118215aa2183
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
There are probably lots of places that rely on that behaviour, so go
back to what it was.
Change-Id: I4d1503a0ee105a50cdfaab52d9a5862a02c70757
Reviewed-by: David Faure <faure@kde.org>
I don't know if the bug is in moc or in qmake. But it bails out trying
to parse the .cpp file after the
tst_QUrlInternal::nameprep_testsuite_data function. If the #include is
placed above, it works. If it's placed below, it doesn't.
Change-Id: Ide554aa5aa3f1999e29604ba6d25ccdb09f6ef28
Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
Make it a friend and access the internals to have better performance.
Change-Id: I3bbf0b0faa5363278b7b3871d6b6fb5f2225a5f4
Reviewed-by: Giuseppe D'Angelo <dangelog@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Don't crash when either side is null but not both sides.
Also make sure operator< is working properly and satisfies the basic
conditions of a type (such as that if A < B, then !(B < A)).
Change-Id: Idd9e9fc593e1a7781d9f4f2b13a1024b643926fd
Reviewed-by: Giuseppe D'Angelo <dangelog@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
The strict mode check is now implemented after the tolerant parser has
finished, and only if the tolerant parser has not found any errors. We
catch the use of disallowed characters (control characters plus a few
not permitted anywhere) and broken percent encodings.
We do not catch the use of Unicode characters, as they are permitted
in IRIs.
In the tests, remove the old errorString test since it makes little
sense.
Change-Id: I8261a2ccad031ad68fc6377a206e59c9db89fb38
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Note that QUrl can only remember one error. If the URL contains more
than one error condition, only the latest (in whichever parsing order
URL decides to use) will be reported.
I don't want too keep too much data in QUrlPrivate for validation, so
let's use 4 bytes only.
Change-Id: I2afbf80734d3633f41f779984ab76b3a5ba293a2
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
The use of any broken-down components of the query now needs
QUrlQuery.
The QUrl constructor and toString() are now rehabilitated and the
preferred forms. Use toEncoded() and fromEncoded() now only when we
need to store data in a QByteArray or the data comes from a QByteArray
anyway. Change to toString() or the constructor if the data was in a
QString.
Change-Id: I9d761a628bef9c70185a48e927a61779a1642342
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Also say hello to QUrl's constructor and QUrl::toString being allowed
again.
QUrl operates now on UTF-16 encoded data, where a Unicode character
matches its UTF-8 percent-encoded form (as per RFC 3987). The data may
exist in different levels of encoding, but it is always in encoded
form (a percent is always "%25"). For that reason, the previously
dangerous methods are no longer dangerous.
The QUrl parser is much more lenient now. Instead of blindly following
the grammar from RFC 3986, we try to use common-sense. Hopefully, this
will also mean the code is faster. It also operates on QStrings and,
for the common case, will not perform any memory allocations it
doesn't keep (i.e., it allocates only for the data that is stored in
QUrlPrivate).
The Null/Empty behaviour that fragments and queries had in Qt4 are now
extended to the scheme, username, password and host parts. This means
QUrl can remember the difference between "http://@example.com" and
"http://example.com".
Missing from this commit:
- more unit tests, for the new functionality
- the implementation of the StrictMode parser
- errorString() support
- normalisation
Change-Id: I6d340b19c1a11b98a48145152513ffec58fb3fe3
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
The parsing code is now in qurlparser.cpp, whereas the IDNA related
code is in qurlidna.cpp.
Change-Id: I0b32c0bf0ee6c2f08dc3200c44af3c9d1504a3df
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Now that QUrlQuery exists, these methods are no longer necessary in
QUrl itself. Manipulation of the items should be done using the new
class.
They are now implemented using a temporary QUrlQuery. This is hardly
efficient but it works.
Change-Id: I34820b3101424593d0715841a2057ac3f74d74f0
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
This class is meant to replace the QUrl functionality that handled
key-value pairs in the query part of an URL. We therefore split the
URL parsing code from the code dealing with the pairs: QUrl now only
needs to deal with one encoded string, without knowing what it is.
Since it doesn't know how to decode the query, QUrl also becomes
limited in what it can decode. Following the letter of the RFC,
queries will not encode "gen-delims" nor "sub-delims" nor the plus
sign (+), thus allowing the most common delimiters options to remain
unchanged.
QUrlQuery has some undefined behaviour when it comes to empty query
keys. It may drop them or keep them; it may merge them, etc.
Change-Id: Ia61096fe5060b486196ffb8532e7494eff58fec1
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Change it to operate on QChar pointers, which gains a little in
performance. This also avoids unnecessary detaching in the QString
source.
In addition, make the output be appended to an existing QString. This
will be useful later when we're reconstructing a URL from its
components.
Change-Id: I7e2f64028277637bd329af5f98001ace253a50c7
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
The reason for this change is that the strict parser made little sense
to exist. What would the recoder do if it was passed an invalid
string?
I believe that the tolerant recoder is more efficient than the
correcting code followed by the strict recoder. This makes the recoder
more complex and probably a little less efficient, but it's better in
the common case (tolerant that doesn't need fixes) and in the worst
case (needs fixes).
Change-Id: I68a0c9fda6765de05914cbd6ba7d3cea560a7cd6
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
This one function is an all-in-one:
- UTF-8 encoder
- UTF-8 decoder
- percent encoder
- percent decoder
The next step is add the ability to modify the behaviour, by telling
the function what else it must encode or decode and what it should
leave untouched.
Change-Id: I997eccfd2f9ad8487305670b18d6c806f4cf6717
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
These functions are now aliases to {to,from}Ace, which are usually
what you want. The original functions from Qt 4.0 had the wrong
semantics and wrong name. The new ones from Qt 4.2 execute the ACE
processing from IDNA (specifically, the ToASCII and ToUnicode
operations described in the RFC).
But so as not to be without tests, export the tests in unit testing
environment and test the punycode roundtrip. Note that the
tst_QUrl::idna_test_suite test tests *only* the Punycode roundtrip,
not the nameprepping.
Change-Id: I9b95b4bd07b4425344a5c6ef5cce7cfcb9846d3e
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: David Faure <faure@kde.org>
Copy the unit tests that related to percent-encoding to
tst_qbytearray.cpp and use public functions to execute
QUrl::fromPercentEncoded and QUrl::toPercentEncoded.
Change-Id: I6639ea566d82dabeb91280177a854e89e18f6f8d
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: David Faure <faure@kde.org>
