This the API that has been around since Qt 4.5. We decided not to
deprecate them individually. Instead, we'll deprecate the whole class.
Pick-to: 6.6
Change-Id: Ia930b1a2ed1e465a826ffffd179a1b7b3250fd89
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
The legacy mode was using the new nativeKey to create a semaphore.
As a result, on macOS the name of the semaphore key file was the same
as the name of the shared memory key file.
This lead to a situation when the file was mistakenly deleted when
destroying any instance of the shared memory, not only the one that
created it.
Fix it by using QSystemSemaphore::legacyNativeKey() in legacy mode.
Add a test to verify that we cannot re-create a shared memory with the
same key. The test was failing on macOS without the fix.
Fixes: QTBUG-111855
Pick-to: 6.6
Change-Id: Ib0bc41791e889b1888bbb8aa9044c6b053b63a5a
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This is needed to support passing it to other processes so they can
enable legacy, compatibility mode. Right now, there's no such code, but
I am 90% certain we'll need it soon in 6.6.x, if not for compatibility
changes in the future.
There's a bug in passing a QNativeIpcKey to another process that causes
QSharedMemory to use the wrong QSystemSemaphore for control (a feature
that should never have existed in the first place, but we're 15 years
too late on that). I have not yet investigated a fix for this, but it
will likely involve knowing the original legacy key.
Pick-to: 6.6 6.6.0
Change-Id: Idd5e1bb52be047d7b4fffffd1750b547013cb336
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
There's no need to return QString, only to create the QNativeIpcKey
elsewhere, when nothing uses this intermediary QString (those two
functions aren't used in unit tests any more, since the two "IPC: add
native key support" commits (2c286561bb
and 3ae052d3bb). Since they aren't used in
the tests, we can remove the Q_AUTOTEST_EXPORT macro too and the
unnecessary default argument.
I'll need the ability to return QNativeIpcKey to store the original,
legacy key inside of it.
Pick-to: 6.6 6.6.0
Change-Id: Idd5e1bb52be047d7b4fffffd17506c05e4f61f79
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Commit 72c2cdbc57 said "Move the helper
from qsharedmemory.cpp" but didn't actually move it probably because
commit 72c2cdbc57 got cherry-picked to 6.5 but the original
introduction to qsharedmemory.cpp didn't.
So do it now.
Change-Id: Idd5e1bb52be047d7b4fffffd175067701d4ea58c
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
The deprecated implementation of QSharedMemory and QSystemSemaphore
are not correctly guarded by the deprecation macros, and thus it's
causing compilation errors when we disable deprecated code.
As a drive-by, change the deprecate version from 6.9 to 6.10
as requested.
Change-Id: Icfed181c27248b9e1381101a64523419097dd1da
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
These linking issues were not caught by documentation testing in the CI.
* android-content-uri-limitations.qdocinc: Fix external link title
* Fix links to 'Native IPC Keys'
* Fix \sa links to 'Inter-Process Communication'
* Replace \sa links to non-existent function nativeKeyType()
* Drop explicit link to undocumented class QBasicAtomicInteger
Change-Id: I041a8cd2301cc2e77b88c085e74e9178e507a7a1
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>
Reviewed-by: Nicholas Bennett <nicholas.bennett@qt.io>
And we particularly want to avoid calling with Create twice.
Change-Id: I12a088d1ae424825abd3fffd171d6ab1fb87221f
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
And deprecate the non-native key support API. Qt 7 may not even store
the old, non-native key.
Documentation in a new commit, when the dust settles.
Drive-by updates to the tst_QSharedMemory::attach row names, to fix
grammar and remove spaces and apostrophe.
Change-Id: I12a088d1ae424825abd3fffd171d3025c77f94d2
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
And deprecate the non-native key support API. Qt 7 may not even store
the old, non-native Qt.
Documentation in a new commit, when the dust settles.
Change-Id: I12a088d1ae424825abd3fffd171d2b549eeed040
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
It's much easier to tell what happened.
Change-Id: I12a088d1ae424825abd3fffd171dbeb58c46fd6d
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
It's just the setUnixErrorString() functions.
Change-Id: I12a088d1ae424825abd3fffd171d2880ebaf49c7
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This removes the second portion of the #if mess of shared code between
QSharedMemory and QSystemSemaphore for SystemV.
Change-Id: Id8d5e3999fe94b03acc1fffd171c073c2873206e
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
It's not a lot of files, but it's actually more in the same dir than
mime/ does right now. I'm about to add two more files, though I'll also
merge a few more later.
Change-Id: Id8d5e3999fe94b03acc1fffd171bfe2ea36a35a7
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Thiago Macieira
Ivan Solovev
Yuhang Zhao
Topi Reinio