diff options
Diffstat (limited to 'src/corelib/kernel/qcoreapplication.cpp')
| -rw-r--r-- | src/corelib/kernel/qcoreapplication.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp index 7694a0f..dd46bc5 100644 --- a/src/corelib/kernel/qcoreapplication.cpp +++ b/src/corelib/kernel/qcoreapplication.cpp @@ -98,6 +98,12 @@ # include <taskLib.h> #endif +#ifdef Q_OS_QNX +# include <sys/neutrino.h> +# include <pthread.h> +# include <sched.h> +#endif + QT_BEGIN_NAMESPACE class QMutexUnlocker @@ -353,6 +359,22 @@ QCoreApplicationPrivate::QCoreApplicationPrivate(int &aargc, char **aargv, uint qt_application_thread_id = QThread::currentThreadId(); #endif +#ifdef Q_OS_QNX + // make the kernel attempt to emulate an instruction with a misaligned access + // if the attempt fails, it faults with a SIGBUS + int tv = -1; + ThreadCtl(_NTO_TCTL_ALIGN_FAULT, &tv); + + // without Round Robin drawn intensive apps will hog the cpu + // and make the system appear frozen + int sched_policy; + sched_param param; + if (pthread_getschedparam(0, &sched_policy, ¶m) == 0 && sched_policy != SCHED_RR) { + sched_policy = SCHED_RR; + pthread_setschedparam(0, sched_policy, ¶m); + } +#endif + // note: this call to QThread::currentThread() may end up setting theMainThread! if (QThread::currentThread() != theMainThread) qWarning("WARNING: QApplication was not created in the main() thread."); |