We know that all lines from /proc/<PID>/maps end in a newline, so we
trim exactly that one byte, then we put it all back together with
.join('\n') to check if we've read the entire file.
Linux virtual files are usually served in 4 kB increments; tst_qfile's
maps file is about 16000 bytes for me, just short of the QIODevice buffer:
[pid 414315] read(5, "55c6afe04000-55c6afe11000 r--p 0"..., 16384) = 4049
[pid 414315] read(5, "7f215fd25000-7f215fd26000 r--p 0"..., 12335) = 4038
[pid 414315] read(5, "7f2160800000-7f21608c7000 r--p 0"..., 8297) = 4072
[pid 414315] read(5, "7f216119f000-7f21611a0000 rw-p 0"..., 4225) = 3994
It is not a coincidence that the reads are at line boundaries, though
it's not a guarantee from the kernel.
We appear to have accidentally fixed the QEMU emulation bug by reading
another process' /proc/<PID>/maps (hypothesis: QMU emulates the target
system in /proc/self, hiding itself in maps, but makes no translation
for other process map files.
Change-Id: Ifbf974a4d10745b099b1fffd1777ac919b12dc90
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
IndexedDB version of QSettings will now use solely the sync versions
of data access functions. Those will suspend with JSPI.
This makes IDB settings conform to the QSettings contract - and also
allows us to enable tests in tst_qsettings for the IDB version of
QSettings.
Also, do not treat the IndexedDB format as one defining read/write
functions in QSettings - those are the same as for ini format, as
IndexedDB settings backend uses a backing ini file.
Change-Id: Iee3471cc79c0cea87378923cf9baac58e56d1272
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
These are member containers of nested (in the test function) structs.
It's clear the container isn't modified in the loop body, so use
ranged-for and std::as_const.
Remove "#undef QT_NO_FOREACH".
Task-number: QTBUG-115839
Change-Id: I0588bf4b6520b42d6d8678d702192fb894956b05
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This is a local container that isn't modified in the loop, so use a
ranged-for loop with std::as_const.
Task-number: QTBUG-115839
Change-Id: Ie9129e065f8ae9bd8c93cf95093a77529aef0803
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Use std::initializer_list/std::array for data known at compile time.
In files where Q_FOREACH isn't used any more, remove
"#undef QT_NO_FOREACH".
Drive-by change: de-duplicate some trivial code.
Task-number: QTBUG-115839
Change-Id: Ifb1a93579bd4ab8fd10f78665a28559cc61da7e2
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
These are local containers that are either:
- Already const and didn't need Q_FOREACH to begin with
- Can be simply made const, just by adding const keyword
In one case the unittest checked that the container's size is 1, so use
list.first() instead of a for-loop.
In files where Q_FOREACH isn't used any more, remove
"#undef QT_NO_FOREACH". Also remove those files from NO_PCH_SOURCES.
Drive-by changes:
- Remove parenthesis from one-line for-loops
- Make the for-loop variable a const& where a copy isn't needed
Task-number: QTBUG-115839
Change-Id: Ide34122b9cda798b80c4ca9d2d5af76024bc7a92
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
The loop was iterating over a temporary container, so it couldn't have
changed it. Store the container in a const auto variable and use
ranged-for.
In files where Q_FOREACH isn't used any more, remove
"#undef QT_NO_FOREACH".
Task-number: QTBUG-115839
Change-Id: I402df5fa48f4287f3cc989ddae1524da43999049
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
cleanupTestCase: the loops don't change the member containers, so use
std::as_const and ranged for.
iterateRelativeDirectory(): the for loop doesn't change the container,
so make it const to begin with, and use a ranged-for loop.
Drive-by change: make the for-loop variables const&, no need to create
unnecessary copies.
Task-number: QTBUG-115839
Change-Id: Ic2776459f695c9f334f83916b1c9bbe5646a3b9d
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Each loop was iterating over temporary containers, so use a const auto
variable to hold it and use ranged-for
Drive-by change: make the for-loop variable a const& (QString,
QFileInfo).
Task-number: QTBUG-115839
Change-Id: Idffaedb8e2e8782a0f4f907995f62f3c0de44bba
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
filterLinks() is always called on a temporary QStringList, so make it
take by && (which proves it's always called on a temporary), and modify
the parameter directly.
Task-number: QTBUG-115839
Change-Id: I40611f40cc0096a58d5c9d8e68c5df06d43152e5
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
cleanupTestCase(): the loop doesn't modify the member container, so use
std::as_const and a ranged-for.
mounting(): the loop was iterating over a temporary QList, store it in a
local auto variable and use ranged-for.
Drive-by change: add braces to a multi-lined for block.
Task-number: QTBUG-115839
Change-Id: I0542cad4df3730d6a09b39e64a54a84fc0d57062
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@qt.io>
The density of Q_FOREACH uses in this and some other modules is still
extremely high, too high for anyone to tackle in a short amount of
time. Even if they're not concentrated in just a few TUs, we need to
make progress on a global QT_NO_FOREACH default, so grab the nettle
and stick to our strategy:
Mark the whole of Qt with QT_NO_FOREACH, to prevent new uses from
creeping in, and whitelist the affected TUs by #undef'ing
QT_NO_FOREACH locally, at the top of each file. For TUs that are part
of a larger executable, this requires these files to be compiled
separately, so add them to NO_PCH_SOURCES (which implies
NO_UNITY_BUILD_SOURCES, too).
In tst_qglobal.cpp and tst_qcollections.cpp change the comment on the
#undef QT_NO_FOREACH to indicate that these actually test the macro.
Task-number: QTBUG-115839
Change-Id: Iecc444eb7d43d7e4d037f6e155abe0e14a00a5d6
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
The test removes the file in memfs that IndexedDB settings use as the
backing store. This forces a new instance of IDB settings to read from
the actual IndexedDB, instead of the file.
Change-Id: I7c04a90ae80e47b7742bd133b2d9327ce0063fe2
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
My FreeBSD does not have /proc mounted, so this test doesn't run almost
ever. I have no idea about OpenBSD and no one has tested Qt on AIX in
over a decade.
Change-Id: Ifbf974a4d10745b099b1fffd1777a598ee91eb5d
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Missing parts of local storage backend implemented:
- fallback mechanism
- removal of all child keys for groups
- variant decoding instead of string decoding
- report AccessError when organization is empty in settings' ctor
Some WASM-specific adjustments to tst_qsettings have also been
introduced.
Task-number: QTBUG-115509
Fixes: QTBUG-115037
Change-Id: I02cde965b11d98a64fc1ecb261d74838c508afd6
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
This is done as one of the last steps inside QProcess itself, so the
child modifier and all other tasks still run with the parent process'
permissions. On Linux, setting the UID to non-zero will also
automatically clear the effective capabilities(7) set.
This feature is only useful for setuid or setgid applications, so this
commit updates the QCoreApplication::setSetuidAllowed() documentation to
mention the QProcess flag.
Change-Id: I3e3bfef633af4130a03afffd175e940c0668d244
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Doing setsid() and disconnecting from the controlling terminal are, in
addition to resetting the standard file descriptors to /dev/null, a
common task that daemons do. These options allow a QProcess to force a
child to be a daemon.
QProcess ensures that the operations are done in the correct order.
Change-Id: I3e3bfef633af4130a03afffd175e9451d2716d7a
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
The QProcessunixProcessParameters sometimes fails in CI with an XPASS.
Unclear under what conditions QNX behaves correctly, so accept that it
is unpredictable and only expect a failure when a failure is imminent.
Amends f9c87cfd44.
Change-Id: Icf70861343747e6323c7953a2462b7bbc46549b3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Add the boilerplate standalone test prelude to each test, so that they
can be opened with an IDE without the qt-cmake-standalone-test script,
but directly with qt-cmake or cmake.
Boilerplate was added using the following scripts:
https://git.qt.io/alcroito/cmake_refactor
Manual adjustments were made where the code was inserted in the wrong
location.
Task-number: QTBUG-93020
Change-Id: I28b6d3815c5f43d2c33ea65764f6f3f8f129eaf3
Reviewed-by: Amir Masoud Abdol <amir.abdol@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
There were setters (quote(), noquote()), but, unlike
space()/nospace(), there was no getter.
Add the getter, and, for symmetry, a parametrized setter, too.
[ChangeLog][QtCore][QDebug] Added setQuoteStrings()/quoteStrings() to
access and manipulate the quote()/noquote() state.
Change-Id: I1b73138819b4d02726a6ef862c190206431ccebc
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This is similar to and extends the prevention of thread cancellation
introduced by commit ba05af82d3. This
prevents the situation in which a signal gets delivered (usually because
of a crash) and the parent process' handler is run, doing things it
shouldn't between vfork() and execve().
Most C libraries (all that I've investigated) unblock SIGABRT on
abort(), so this doesn't affect them. Likewise, on most OSes, crashes
ignore the signal block and terminate the application -- Darwin appears
to be an exception, but vfork() is not enabled there. Both situations
are tested by terminateInChildProcessModifier().
Task-number: QTBUG-113822
Change-Id: Ib5ce7a497e034ebabb2cfffd17628ca33969b7af
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This minimizes any multi-threading / file-locking issues as the file is
closed once the contents are read.
This change assumes /proc/self/mountinfo is available on Linux systems,
and doesn't fallback to setmntent(). It's been around since at least
Linux Kernel 2.4.0.
This requires exporting qstrntoll() for the unittests (using
QT_AUTOTEST_EXPORT and wrapping the those unittests in "#ifdef
QT_BUILD_INTERNAL"), otherwise linking fails.
Fixes: QTBUG-77059
Change-Id: I0363258a9979ea6dadfe5e36c02534ffbd3386c5
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Axel Spoerl <axel.spoerl@qt.io>
We were basically timing the qSleep, which is pointless. We don't need
to verify that qSleep(X) spends at least X time. Because it also
doesn't. Somehow, QNX can execute 1000 ms sleeps in 996 ms.
Amends commit 30e5ff3ff2.
Pick-to: 6.6 6.5
Change-Id: I46b5dede27114be29724fffd176a66c1799075b7
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
And take the opportunity to clarify what the QtVforkSafe namespace is
doing. Amends commit e71c226d6f.
Pick-to: 6.6
Change-Id: I443cf0c8a76243eead33fffd1767f3fa390a7cdd
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
So that building only tst_qprocess also builds the required test app.
Change-Id: I19a92f9dd2f4de08302d09cad0caf55c285a6dae
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Pipes are unnamed FIFOs, so they're basically the same.
The difference here is that open() blocks on opening a FIFO until both
ends of the FIFO are opened. This helps us in synchronizing the two
threads and thus ensuring that that the read() system call deep inside
QFile does, indeed, block.
We see this with strace -T on Linux:
[pid 662956] openat(AT_FDCWD, "/run/user/1000/tst_qfile_fifo.2575572361", O_RDONLY|O_CLOEXEC <unfinished ...>
... aux starts up ...
[pid 662957] prctl(PR_SET_NAME, "QThread") = 0 <0.000004>
[pid 662957] openat(AT_FDCWD, "/run/user/1000/tst_qfile_fifo.2575572361", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid 662956] <... openat resumed>) = 4 <0.000133>
[pid 662957] <... openat resumed>) = 6 <0.000011>
[pid 662957] clock_nanosleep(CLOCK_REALTIME, 0, {tv_sec=0, tv_nsec=500000000}, <unfinished ...>
[pid 662956] read(4, <unfinished ...>
[pid 662957] <... clock_nanosleep resumed>NULL) = 0 <0.500183>
[pid 662957] write(6, "\2", 1) = 1 <0.000033>
[pid 662956] <... read resumed>"\2", 1) = 1 <0.500311>
Pick-to: 6.6
Change-Id: I63b988479db546dabffcfffd1766d7a48819b149
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
QProcess detects other types of failures from inside the modifier as
successful starts, because the childStartedPipe gets closed without an
error condition getting written. The new method allows a reporting as a
proper failure-to-start.
Added tests for both cases.
[ChangeLog][QtCore][QProcess] Added failChildProcessModifier().
Change-Id: Icfe44ecf285a480fafe4fffd174da2b10306d3c2
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This amends commit f9c87cfd44 to reset the
signal block mask too, not just the signal handlers. For this, SIGPIPE
is not treated specially.
Pick-to: 6.6
Change-Id: Ib5ce7a497e034ebabb2cfffd17627289614bf315
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
We observe failures in CI on QNX because the measured timeout is ~995ms
rather than the expected 1000ms. Start the timer before the thread
starts to guarantee that at least as much time elapses as the thread
waits before writing the second byte to the pipe.
Otherwise, the thread might be sleeping already when the timer starts,
and then we can't rely on any measurements.
Pick-to: 6.6 6.5
Change-Id: I6072569a987f5e952b0953e0e394a223f891fd25
Reviewed-by: Dimitrios Apostolou <jimis@qt.io>
So I can use it in tst_QProcess itself.
This also modernizes it a bit by using __builtin_trap() where available.
On x86-64, this expands to the ud2 instruction.
Pick-to: 6.6
Change-Id: Ib5ce7a497e034ebabb2cfffd176288433378731b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
They were in the right order before rebasing multiple times. kdiff3 is
currently broken, so I don't know what happened.
Change-Id: Ib5ce7a497e034ebabb2cfffd17626fcf46c541fd
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Commit 29b2fe40dc disabled it by reverting
commit d6bf71123d. We now add the promised
flag to opt-in. The flag is added to all Unix systems, but it really
only applies to Linux right now.
No ChangeLog because the whole UnixProcessParameters structure is new
and has its own changelog.
Task-number: QTBUG-104493
Task-number: QTBUG-111243
Task-number: QTBUG-111964
Change-Id: Icfe44ecf285a480fafe4fffd174d4effd3382495
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
This commit adds those three flags that are either frequent enough or
difficult to do: close all file descriptors above stderr and reset the
signal handlers. Setting SIGPIPE to be ignored isn't critical, but is
required when the ResetSignalHandlers flag is used, as this is run
after the user child process modifier.
[ChangeLog][QtCore][QProcess] Added setUnixProcessParameters() function
that can be used to modify certain settings of the child process,
without the need to provide a callback using setChildProcessModifier().
Change-Id: Icfe44ecf285a480fafe4fffd174d0d1d63840403
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Do this by making the actual child-execution code common between
startProcess() and startDetached(). It does mean we've moved the chdir()
operation from the child to the grandchild process, though.
[ChangeLog][QtCore][QProcess] The modifier function set with
setChildProcessModifier() will now also be executed when the process is
started with startDetached().
Change-Id: Icfe44ecf285a480fafe4fffd174d9aa57dd7dfff
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
There are two types of stack unwinding that can happen on Unix systems:
C++ exceptions and PThread cancellations (on some systems, like Linux,
PThread cancellations can be caught in catch(...) statements). We call a
variety of PThread cancellation functions from inside the child stub,
like close(). To avoid problems, we disable PThread cancellations
completely before fork() or vfork().
The C++ exception case is simpler, because we can be sure of catching
them with the catch (...) statement and simply transform them into an
error message. This is also testable, which the PThread cancellation
isn't.
The error message isn't ideal because we're string-frozen. I'll improve
it for 6.6.
Pick-to: 6.5
Change-Id: Icfe44ecf285a480fafe4fffd174d97a475c93ff1
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
There's no need to say it's getting skipped on Windows. moc *can* parse
the #ifdefs these days.
Pick-to: 6.5
Change-Id: Icfe44ecf285a480fafe4fffd174d95c709ff6a74
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
[ChangeLog][QtCore][QDebug] Added pretty formatting of C++ <chrono>
durations.
[ChangeLog][QtTest] Added pretty formatting of C++ <chrono> durations
for QCOMPARE expressions.
Change-Id: I3b169860d8bd41e9be6bfffd1757cc087ba957fa
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
These classes depend only on Core, not Gui.
This allows dropping the dependency of tst_qxmlstream and tst_qzip on
QtGui, and prevents a tst_qxmlstream FTBFS when building with
QT_NO_TEXTODFWRITER.
Symbols move from QtGui to QtCore, but the classes are private API, so
not under BC constraints.
The classes are not used outside qtbase, so no other in-tree users
need porting.
Task-number: QTBUG-3897
Change-Id: Ifa148f43ec139d7f9ac1f3893e2fcf4640e3c60c
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
In commit 482a75fef9 the code was changed to return early, but that
missed appending the organization and app names while test mode is
enabled.
Issue spotted by Edward.
Pick-to: 6.5
Change-Id: Ifd220f8990874a173413dcf71d105c04b605c800
Reviewed-by: David Faure <david.faure@kdab.com>
Some unittests set a custom Organization and Application names and then
clears them. Instead used init() method to "reset" those two names to
the original values before each unittest is run.
Pick-to: 6.5
Change-Id: I359f3911dd50a2aecfd8dde22e2d591adc6e224e
Reviewed-by: David Faure <david.faure@kdab.com>
Thiago Macieira
Ahmad Samir
Mikolaj Boc
Marc Mutz
Tor Arne Vestbø
Marcin Zdunek
Volker Hilsheimer
Alexandru Croitor