[Kst] branches/work/kst/hierarchy/kst/src/libkst

[Eli Fidler]

SVN commit 609425 by fidler:

add isLocked() and isLockedByMe()


 M  +26 -0     rwlock.cpp  
 M  +3 -0      rwlock.h  


--- branches/work/kst/hierarchy/kst/src/libkst/rwlock.cpp #609424:609425
@@ -161,4 +161,30 @@
 }
 
 
+bool KstRWLock::isLocked() const {
+#ifndef ONE_LOCK_TO_RULE_THEM_ALL
+  return (_readCount > 0 || _writeCount > 0);
+#else
+#error isLocked() not supported using the single lock
+#endif
+}
+
+
+bool KstRWLock::isLockedByMe() const {
+#ifndef ONE_LOCK_TO_RULE_THEM_ALL
+  QMutexLocker lock(&_mutex);
+
+  Qt::HANDLE me = QThread::currentThread();
+
+  if (_readCount > 0) {
+    return (_readLockers.find(me) != _readLockers.end());
+  } else if (_writeCount > 0) {
+    return (_writeLocker == me);
+  } else if (_readCount == 0 && _writeCount == 0) {
+    return false;
+  }
+#else
+#error isLockedByMe() not supported using the single lock
+#endif
+}
 // vim: ts=2 sw=2 et
--- branches/work/kst/hierarchy/kst/src/libkst/rwlock.h #609424:609425
@@ -42,6 +42,9 @@
 
     virtual void unlock() const;
 
+    virtual bool isLocked() const;
+    virtual bool isLockedByMe() const;
+
   protected:
 #ifdef ONE_LOCK_TO_RULE_THEM_ALL
     static