MXS-2008 Move Worker and MessageQueue to maxbase

maxutils/maxbase/src/workertask.cc

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2016 MariaDB Corporation Ab
+ *
+ * Use of this software is governed by the Business Source License included
+ * in the LICENSE.TXT file and at www.mariadb.com/bsl11.
+ *
+ * Change Date: 2022-01-01
+ *
+ * On the date above, in accordance with the Business Source License, use
+ * of this software will be governed by version 2 or later of the General
+ * Public License.
+ */
+
+#include <maxbase/workertask.hh>
+#include <maxbase/atomic.h>
+#include <maxbase/assert.h>
+
+namespace maxbase
+{
+
+//
+// WorkerTask
+//
+WorkerTask::~WorkerTask()
+{
+}
+
+//
+// WorkerDisposableTask
+//
+WorkerDisposableTask::WorkerDisposableTask()
+    : m_count(0)
+{
+}
+
+WorkerDisposableTask::~WorkerDisposableTask()
+{
+}
+
+void WorkerDisposableTask::inc_ref()
+{
+    atomic_add(&m_count, 1);
+}
+
+void WorkerDisposableTask::dec_ref()
+{
+    mxb_assert(atomic_load_int32(&m_count) > 0);
+
+    if (atomic_add(&m_count, -1) == 1)
+    {
+        delete this;
+    }
+}
+
+}