diff options
author | Marc Mutz <marc.mutz@qt.io> | 2023-07-04 22:28:50 +0200 |
---|---|---|
committer | Marc Mutz <marc.mutz@qt.io> | 2023-07-09 21:23:17 +0000 |
commit | 416e07e0575922323b76e4e7768409b203292837 (patch) | |
tree | 7d56ad80d6c4966165d8e9c8c208200969549623 /src/corelib/kernel/qeventloop.cpp | |
parent | 536696196c4f954ffd2848bb89ea0404938262ad (diff) |
QEventLoopLocker: rewrite to hold public classes
... instead of Private ones, at the cost of having to befriend of all
the lockable classes, because we need access to their d_func()'s.
This simplifies the code, because we don't need the manual QClass to
QClassPrivate mapping (o2p) anymore, we can just use d_func(). This also
paves the way to make QEventLoopLocker almost completely inline and use
a 3-pointer form of QBiPointer, once available, to hide the bit
fiddling. We couldn't make such a change if the class continued to hold
pointers to QClassPrivate's.
Pick-to: 6.6
Task-number: QTBUG-114793
Change-Id: Id300e4d45d6cacabe090a46cd6433c5ead3c8b0c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Diffstat (limited to 'src/corelib/kernel/qeventloop.cpp')
-rw-r--r-- | src/corelib/kernel/qeventloop.cpp | 32 |
1 files changed, 11 insertions, 21 deletions
diff --git a/src/corelib/kernel/qeventloop.cpp b/src/corelib/kernel/qeventloop.cpp index bdc448fe56..f754a975b9 100644 --- a/src/corelib/kernel/qeventloop.cpp +++ b/src/corelib/kernel/qeventloop.cpp @@ -309,19 +309,10 @@ bool QEventLoop::event(QEvent *event) void QEventLoop::quit() { exit(0); } - -namespace { // If any of these trigger, the Type bits will interfere with the pointer values: -static_assert(alignof(QEventLoopPrivate) >= 4); -static_assert(alignof(QThreadPrivate) >= 4); -static_assert(alignof(QCoreApplicationPrivate) >= 4); - -template <typename Private> -Private *o2p(QObject *o) -{ - return static_cast<Private*>(QObjectPrivate::get(o)); -} -} // unnamed namespace +static_assert(alignof(QEventLoop) >= 4); +static_assert(alignof(QThread) >= 4); +static_assert(alignof(QCoreApplication) >= 4); /*! \class QEventLoopLocker @@ -351,8 +342,7 @@ Private *o2p(QObject *o) \sa QCoreApplication::quit(), QCoreApplication::isQuitLockEnabled() */ QEventLoopLocker::QEventLoopLocker() noexcept - : QEventLoopLocker{o2p<QCoreApplicationPrivate>(QCoreApplication::instance()), - Type::Application} + : QEventLoopLocker{QCoreApplication::instance(), Type::Application} { } @@ -365,7 +355,7 @@ QEventLoopLocker::QEventLoopLocker() noexcept \sa QEventLoop::quit() */ QEventLoopLocker::QEventLoopLocker(QEventLoop *loop) noexcept - : QEventLoopLocker{o2p<QEventLoopPrivate>(loop), Type::EventLoop} + : QEventLoopLocker{loop, Type::EventLoop} { } @@ -378,7 +368,7 @@ QEventLoopLocker::QEventLoopLocker(QEventLoop *loop) noexcept \sa QThread::quit() */ QEventLoopLocker::QEventLoopLocker(QThread *thread) noexcept - : QEventLoopLocker{o2p<QThreadPrivate>(thread), Type::Thread} + : QEventLoopLocker{thread, Type::Thread} { } @@ -425,7 +415,7 @@ QEventLoopLocker::QEventLoopLocker(QThread *thread) noexcept */ QEventLoopLocker::~QEventLoopLocker() { - visit([](auto p) { p->deref(); }); + visit([](auto p) { p->d_func()->deref(); }); } /*! @@ -434,7 +424,7 @@ QEventLoopLocker::~QEventLoopLocker() QEventLoopLocker::QEventLoopLocker(void *ptr, Type t) noexcept : p{quintptr(ptr) | quintptr(t)} { - visit([](auto p) { p->ref(); }); + visit([](auto p) { p->d_func()->ref(); }); } /*! @@ -447,9 +437,9 @@ void QEventLoopLocker::visit(Func f) const if (!ptr) return; switch (type()) { - case Type::EventLoop: return f(static_cast<QEventLoopPrivate *>(ptr)); - case Type::Thread: return f(static_cast<QThreadPrivate *>(ptr)); - case Type::Application: return f(static_cast<QCoreApplicationPrivate *>(ptr)); + case Type::EventLoop: return f(static_cast<QEventLoop *>(ptr)); + case Type::Thread: return f(static_cast<QThread *>(ptr)); + case Type::Application: return f(static_cast<QCoreApplication *>(ptr)); } Q_UNREACHABLE(); } |