These functions are a faster version of {,!}qgetenv().is{Null,Empty}(),
a common pattern in Qt code.
Their main advantage is that they don't need to allocate memory, so
they can be used in noexcept functions, or dynamic initialisation of
namespace-scope statics, because throwing in these contexts invokes
std::terminate().
Change-Id: I651c5bd72f450b5d7df76590f8791572fe992af5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
These functions are not supposed to return, not even by exception.
qt_message() _can_ throw, but we're fine with the compiler calling
std::terminate() then, since the backtrace will still include the
assertion location.
This behaviour is ensured by a new macro, QT_TERMINATE_ON_EXCEPTION,
which expands to something like
try { expr; } catch(...) { std::terminate(); }
if the compiler doesn't support Q_DECL_NOEXCEPT (but maybe
Q_DECL_NOTHROW), and to something like just
expr;
otherwise (including in the QT_NO_EXCEPTION case).
The real macro preserves scopes in all cases, and aims
to work even if <exception> isn't included in the TU it's used in,
so is a little bit more complex than that.
Change-Id: Ie6a2b7776e6aa77e57bd9aea6e184e5fa1cec81c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Commit 1adca807 defined Q_DECL_NOEXCEPT to be the same as throw() for the
Microsoft compiler. However, the two are not equivalent:
- C++11 noexcept is defined to call std::terminate() if a noexcept
function nevertheless encounters an exception.
- MSVC throw() has essentially undefined behaviour in this situation:
http://msdn.microsoft.com/en-us/library/wfa0edys%28v=vs.100%29
"Due to code optimizations that might be performed by the C++
compiler [...] if a function does throw an exception, the program
may not execute correctly."
So define two macros:
1. Q_DECL_NOEXCEPT/Q_DECL_NOEXCEPT_EXPR always have C++11 behaviour.
This is expected to be the more efficient implementation if the
function can actually throw.
2. Q_DECL_NOTHROW means that the function gives the nothrow
guarantee. It is stronger than noexcept, but not all functions
that can be marked Q_DECL_NOEXCEPT can be marked Q_DECL_NOTHROW.
In general Q_DECL_NOTHROW functions need to use a try/catch block
in order to prevent exceptions from leaving the functions, unless
you can proove that none of the operations can throw.
For the caller, both macros are equivalent: it can be relied on that
no exception leaves the function.
Change-Id: I32f822a82e06a31cb71d38db438387aee5ec3334
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
Change-Id: I19d3b2e9a5180b13deb828b55195404ef20be295
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Commit d839564c94 was incomplete. It
added the Q_CORE_EXPORT macro to qmalloc.cpp, but the qMemSet and
qMemCopy function bodies are in qglobal.cpp.
Change-Id: I24ee44f04365d8dbdf3f1c0f22b6a72cae9f96bb
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
Android does not support this, or other thread-safe functions.
Change-Id: Id2a918f83e6138795196c45f89613c5b46911901
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Add qSetMessagePattern() to configure the default
message pattern. This one can still be overwritten by setting the
QT_MESSAGE_PATTERN environment variable.
Without this method, there's actually no way to change the
default output programatically. Since QT_MESSAGE_PATTERN is
evaluated when the first message arrives, setting it via e.g. qputenv
might have no effect/be too late.
Change-Id: I115e0c30606f128fdbf5c169a951ffa2a6a48517
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Introduce a new QtMessageHandler that takes QString instead of
char *: This avoids converting to local8bit , only to convert it back
to utf16 for Windows.
The old QMessageHandler is kept for a transition period, but will
be removed before Qt 5.0.
Also fix qEmergencyOut (that is called in OOM situations) to not rely
on the default message handler.
Change-Id: Iee0ce5838f97175c98788b847964273dd22d4a37
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This change fixes most qdoc errors in QtCore. There are about 900 left.
The main thing this change does is moving documentation from qtcore from
/doc/src to /src/corelib/doc.
Other issues resolved are mis-use of qdoc commands.
Change-Id: I002d01edfb13575e8bf27ce91596a577a92562d1
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@nokia.com>
Replace "contains(QT_CONFIG, coreservices)" with "!ios" in config files.
Replace "QT_NO_CORESERVICES" with "Q_OS_IOS" in source files.
Change-Id: Id3b02316b245a24ce550e0b47596d18a4a409e4f
Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>
Based on consumer preview, the internal version is 6.2
Change-Id: I9d6ff6c7614f46a20d489e8a8f4aefeb60c547f6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Just like qMalloc/qRealloc/qFree, there is absolutely no reason to wrap these
functions just to avoid an include, except to pay for it with worse runtime
performance.
On OS X, on byte sizes from 50 up to 1000, calling memset directly is 28-15%
faster(!) than adding an additional call to qMemSet. The advantage on sizes
above that is unmeasurable.
For qMemCopy, the benefits are a little more modest: 16-7%.
Change-Id: I98aa92bb765aea0448e3f20af42a039b369af0b3
Reviewed-by: Giuseppe D'Angelo <dangelog@gmail.com>
Reviewed-by: John Brooks <john.brooks@dereferenced.net>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Despite the documentation requiring Q_PRIMITIVE_TYPEs to
be PODs, existing practice in Qt (QFixed, QFlags, QUuid)
is to allow constructors on primitive types as long as
every bit pattern represents a valid object (ie. memory
doesn't have to be initialised to hold an object of the
type) and memcpy() can be used to create an independent
copy of the object (memcpy()ing QString, e.g., while
creating two valid objects, doesn't create independent
copies).
Change-Id: Ia85d48b89f6cc84e69ea76719eab9a858d247ad6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Move the documentation for qDebug, qWarning, qCritical, qFatal,
QMessageHandler, QtMsgHandler, qtInstallMsgHandler,
qInstallMessageHandler from qlogging.cpp to qglobal.cpp. For some
reason it's not picked up from qlogging.cpp otherwise.
Also, tweak the output so that e.g. qDebug and friends are correctly
listed as macros.
Change-Id: I8cabf04bae0e8ae9a31a40ebe2d3272c3a33653b
Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>
Use these macros to tell the compiler about conditions that may
happen, so it will generate better code. But do not assume that they
will do anything special.
Change-Id: I89ec4f65f48a9340ccf5ffc4ae4b8c3d8897c8b1
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Similarly to change id I2f429fa7ef93bd75bb93a7f64c56db15b7283388, the capability
to arbitrarily alter the encoding of literals is very destructive, especially in
a world with libraries and plugins.
Change-Id: If0d4cd8dcf89792e39c1984cbde6b036cebfc02f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
QDoc now has support for Doxygen style commands for italics, bold
and list items. This change applies that change in QDoc to the
actual documentation.
Task-number: QTBUG-24578
Change-Id: I519bf9c29b14092e3ab6067612f42bf749eeedf5
Reviewed-by: Shane Kearns <shane.kearns@accenture.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Add QSysInfo::macVersion() instead, to match the windowsVersion()
function.
Change-Id: I783e59583ca21653d25586156cbb0cb1f301868b
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
IBM's POWER and the PowerPC architecture have been merged into a single
ISA, the Power ISA (see http://www.power.org). Use this unified name in
Qt.
Change-Id: Ia41492b0031d890843e43c5f7ecd1e60c65bb75b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
All known processors and their variants/revisions are documented. I
added Q_PROCESSOR_MIPS_V based on the MIPS64 online documentation, which
documents MIPS64 as a superset of MIPS IV and MIPS V.
Change-Id: Ie2796d4f03499283aa2c96d60f5e37bd74a36ab0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>
Check the QT_OUTPUT_PATTERN environment variable in the default
message handler to customize the output of messages. Following
place holders are right now supported:
%{message}, %{type}, %{file}, %{line}, %{function}
The original cleanupFuncinfo was written by Thiago Macieira.
Change-Id: I6ad25baaa0e6a1c9f886105d2a93ef3310e512a9
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: David Faure <faure@kde.org>
Record the file, line, and function where a qDebug, qWarning, qCritical
or qFatal call happens, and make this information available in a custom
message handler.
The patch uses the C preprocessor to replace qDebug, qWarning, ... with
a line that also records the current file, line, and function. Custom
message handlers can access this information via a new QMessageLogContext
argument.
Change-Id: I0a9b89c1d137e41775932d3b1a35da4ebf12d18d
Reviewed-by: David Faure <faure@kde.org>
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 no longer supported.
Change-Id: I3914f5007595fd699fa1e9a565a0a3f59a0e135e
Reviewed-by: Jonas Gastal <jgastal@profusion.mobi>
Reviewed-by: Marius Storm-Olsen <marius.storm-olsen@nokia.com>
This is needed by QtScript, so we need to keep it for now.
Change-Id: Iee6bd7daf7e86a09242523f5aca72ede413a6981
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
After commit 79f675a1e0, the connect and
disconnect callback API effectively becomes useless. Now that these
callbacks cannot/do not, it makes little sense to keep the backdoors
added for Qt Jambi support.
Remove them for now. Should the Qt Jambi team want/need to port to Qt 5,
we can re-add them, possibly designing a better API for doing so as
well.
Change-Id: I6209a1d647d683c979d5294b632b8c12c0f9f91c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Currently, qInstallMsgHandler() does not return the
handle to the default message handler. This patch defines
a default message handler. This is returned by
qInstallMsgHandler() when called for the first time. A call
to qInstallMsgHandler(0) will restore the default message
handler as was the case previously.
Change-Id: I42f06654d45fb0e633f3c6d912fc8f05c23249aa
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Q_WS_QPA is the only active code path after merging
refactor, other Q_WS-macros are no longer used.
Enable compilation without -qpa.
- Remove Q_OS_MSDOS, Q_OS_OS2
- Remove Q_WS_QWS
- Remove/replace definitions/conditionals of Q_WS_XX
- Remove qpa branches from profiles
- Replace Q_WS_MAC by Q_OS_MAC
- Replace Q_WS_MAC && !Q_WS_QPA by
Q_OS_MAC && !QT_NO_CORESERVICES
- Similarly in profiles: mac:contains(QT_CONFIG, coreservices)
- Replace Q_FS_FAT by Q_OS_WIN
Change-Id: Icce5a6c55b052c8f72b3b979ddf31a4f388ea9c9
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
According to the C++ standard, there is no guarantee that
you can cast between function pointers and void pointers
without data loss (section 5.2.10-6).
Change-Id: I27f4d835e4c8ca8ecca0d76cfea9ce34491956bd
Reviewed-on: http://codereview.qt.nokia.com/1995
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
To be used to versionize deprecated symbols
Symbols deprecated in Qt 5.0 need to be inlined
Change-Id: I696a834c25b7e86acf14ae081ea91ef993a5b19e
Reviewed-on: http://codereview.qt.nokia.com/431
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Lars Knoll <lars.knoll@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
Marc Mutz
Mitch Curtis
Sergio Ahumada
Jonathan Liu
Olivier Goffart
Thiago Macieira
Morten Sorvig
Robin Burchell
Lars Knoll
Kai Koehne
Casper van Donderen
Ian Dean
Shane Kearns
Robin Burchell
Bradley T. Hughes
Xizhi Zhu
Jason McDonald
Robin Burchell
Aurindam Jana
Friedemann Kleint
Kim Motoyoshi Kalland
David Boddie
Olivier Goffart
Jyri Tahtela
Qt by Nokia