Rename pvDataApp to src, adjust Makefiles.

src/misc/messageQueue.cpp

@@ -0,0 +1,114 @@
+/* messageQueue.cpp */
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvData is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+/**
+ *  @author mrk
+ */
+#include <string>
+
+#define epicsExportSharedSymbols
+#include <pv/messageQueue.h>
+
+namespace epics { namespace pvData { 
+
+MessageNode::MessageNode()
+: messageType(infoMessage)
+{}
+
+String MessageNode::getMessage() const
+{
+    return message;
+}
+
+MessageType MessageNode::getMessageType() const
+{
+    return messageType;
+}
+
+MessageQueuePtr MessageQueue::create(int size)
+{
+    MessageNodePtrArray nodeArray;
+    nodeArray.reserve(size);
+    for(int i=0; i<size; i++) {
+        nodeArray.push_back(
+            MessageNodePtr(new MessageNode()));
+    }
+    return std::tr1::shared_ptr<MessageQueue>(new MessageQueue(nodeArray));
+}
+
+MessageQueue::MessageQueue(MessageNodePtrArray &data)
+: Queue<MessageNode>(data),
+  overrun(0)
+{ }
+
+MessageQueue::~MessageQueue()
+{
+}
+
+MessageNodePtr &MessageQueue::get() {
+    if(getNumberUsed()==0) return nullNode;
+    lastGet = getUsed();
+    return lastGet;
+}
+
+void MessageQueue::release() {
+    if(lastGet.get()==NULL) return;
+    releaseUsed(lastGet);
+    lastGet.reset();
+}
+bool MessageQueue::put(String message,MessageType messageType,bool replaceLast)
+{
+    MessageNodePtr node = getFree();
+    if(node.get()!= NULL) {
+        node->message = message;
+        node->messageType = messageType;
+        lastPut = node;
+        setUsed(node);
+        return true;
+    }
+    overrun++;
+    if(replaceLast) {
+        node = lastPut;
+        node->message = message;
+        node->messageType = messageType;
+        return true;
+    }
+    return false;
+}
+
+bool MessageQueue::isEmpty()
+{
+    int free = getNumberFree();
+    if(free==capacity()) return true;
+    return false;
+}
+
+bool MessageQueue::isFull()
+{
+    if(getNumberFree()==0) return true;
+    return false;
+}
+
+int MessageQueue::getClearOverrun()
+{
+    int num = overrun;
+    overrun = 0;
+    return num;
+}
+
+MessageQueuePtr createMessageQueue(int size)
+{
+    MessageNodePtrArray nodeArray;
+    nodeArray.reserve(size);
+    for(int i=0; i<size; i++) {
+        nodeArray.push_back(
+            MessageNodePtr(new MessageNode()));
+    }
+    return std::tr1::shared_ptr<MessageQueue>(new MessageQueue(nodeArray));
+}
+
+
+}}