Guard some pthread API with the appropriate POSIX check, or Android.

Android does not support some parts of POSIX. It's also unfortunately not
POSIX-compliant, meaning we need to guard things like pthread_cancel.

Change-Id: I2979eb5579c822f4f5ba27bcc29e118b908e8bdc
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>

diff --git a/src/corelib/thread/qthread_unix.cpp b/src/corelib/thread/qthread_unix.cpp
index a47115c..b3040f3 100644 (file)
--- a/src/corelib/thread/qthread_unix.cpp
+++ b/src/corelib/thread/qthread_unix.cpp
@@ -272,7 +272,9 @@ void QThreadPrivate::createEventDispatcher(QThreadData *data)
 
 void *QThreadPrivate::start(void *arg)
 {
+#if !defined(Q_OS_LINUX_ANDROID)
     pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
+#endif
     pthread_cleanup_push(QThreadPrivate::finish, arg);
 
     QThread *thr = reinterpret_cast<QThread *>(arg);
@@ -314,8 +316,10 @@ void *QThreadPrivate::start(void *arg)
 #endif
 
     emit thr->started();
+#if !defined(Q_OS_LINUX_ANDROID)
     pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
     pthread_testcancel();
+#endif
     thr->run();
 
     pthread_cleanup_pop(1);
@@ -617,7 +621,9 @@ void QThread::start(Priority priority)
     if (code == EPERM) {
         // caller does not have permission to set the scheduling
         // parameters/policy
+#if defined(QT_HAS_THREAD_PRIORITY_SCHEDULING)
         pthread_attr_setinheritsched(&attr, PTHREAD_INHERIT_SCHED);
+#endif
         code =
             pthread_create(&d->thread_id, &attr, QThreadPrivate::start, this);
     }
@@ -635,6 +641,7 @@ void QThread::start(Priority priority)
 
 void QThread::terminate()
 {
+#if !defined(Q_OS_LINUX_ANDROID)
     Q_D(QThread);
     QMutexLocker locker(&d->mutex);
 
@@ -648,6 +655,7 @@ void QThread::terminate()
     } else {
         d->terminated = true;
     }
+#endif
 }
 
 bool QThread::wait(unsigned long time)
@@ -677,9 +685,13 @@ void QThread::setTerminationEnabled(bool enabled)
                "Current thread was not started with QThread.");
 
     Q_UNUSED(thr)
+#if defined(Q_OS_LINUX_ANDROID)
+    Q_UNUSED(enabled);
+#else
     pthread_setcancelstate(enabled ? PTHREAD_CANCEL_ENABLE : PTHREAD_CANCEL_DISABLE, NULL);
     if (enabled)
         pthread_testcancel();
+#endif
 }
 
 void QThread::setPriority(Priority priority)