1 files changed, 78 insertions, 0 deletions
diff --git a/cpp/src/qpid/cluster/PeriodicTimerImpl.cpp b/cpp/src/qpid/cluster/PeriodicTimerImpl.cpp
new file mode 100644
index 0000000000..0d6cac8cc9
--- /dev/null
+++ b/cpp/src/qpid/cluster/PeriodicTimerImpl.cpp
@@ -0,0 +1,78 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+#include "PeriodicTimerImpl.h"
+#include "Cluster.h"
+#include "qpid/framing/ProtocolVersion.h"
+#include "qpid/framing/ClusterPeriodicTimerBody.h"
+
+namespace qpid {
+namespace cluster {
+
+PeriodicTimerImpl::PeriodicTimerImpl(Cluster& c) : cluster(c) {}
+
+PeriodicTimerImpl::TaskEntry::TaskEntry(
+    Cluster& c, const Task& t, sys::Duration d, const std::string& n)
+    : TimerTask(d), cluster(c), timer(c.getBroker().getTimer()),
+      task(t), name(n), inFlight(false)
+{}
+
+void PeriodicTimerImpl::TaskEntry::fire() {
+    sys::Mutex::ScopedLock l(lock);
+    // Only the elder mcasts.
+    // Don't mcast another if we haven't yet received the last one.
+    if (cluster.isElder() && !inFlight) {
+        inFlight = true;
+        cluster.getMulticast().mcastControl(
+            framing::ClusterPeriodicTimerBody(framing::ProtocolVersion(), name),
+            cluster.getId());
+    }
+    setupNextFire();
+    timer.add(this);
+}
+
+void PeriodicTimerImpl::TaskEntry::deliver() {
+    task();
+    sys::Mutex::ScopedLock l(lock);
+    inFlight = false;
+}
+
+
+void PeriodicTimerImpl::add(
+    const Task& task, sys::Duration period, const std::string& name)
+{
+    sys::Mutex::ScopedLock l(lock);
+    if (map.find(name) != map.end())
+        throw Exception(QPID_MSG("Cluster timer task name added twice: " << name));
+    map[name] = new TaskEntry(cluster, task, period, name);
+}
+
+void PeriodicTimerImpl::deliver(const std::string& name) {
+    Map::iterator i;
+    {
+        sys::Mutex::ScopedLock l(lock);
+        i = map.find(name);
+        if (i == map.end())
+            throw Exception(QPID_MSG("Cluster timer unknown task: " << name));
+    }
+    i->second->deliver();
+}
+
+}} // namespace qpid::cluster