From ca3a7cd64822e874076bd23e9981af077eb47b03 Mon Sep 17 00:00:00 2001
From: Alan Conway <aconway@apache.org>
Date: Fri, 13 Apr 2007 20:58:27 +0000
Subject: Moved src/ source code to src/qpid directory:  - allows rhm package
 to build consistently against checked-out or installed qpid.  - consistent
 correspondence between source paths and C++ namespaces.  - consistent use of
 #include <qpid/foo> in source and by users.  - allows header files to split
 over multiple directories,    e.g. separating generated code, separating
 public API from private files.

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@528668 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/client/IncomingMessage.h | 136 ++++++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 cpp/src/qpid/client/IncomingMessage.h

(limited to 'cpp/src/qpid/client/IncomingMessage.h')

diff --git a/cpp/src/qpid/client/IncomingMessage.h b/cpp/src/qpid/client/IncomingMessage.h
new file mode 100644
index 0000000000..7aa8e33df2
--- /dev/null
+++ b/cpp/src/qpid/client/IncomingMessage.h
@@ -0,0 +1,136 @@
+#ifndef _IncomingMessage_
+#define _IncomingMessage_
+
+/*
+ *
+ * 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 "qpid/sys/Monitor.h"
+#include <map>
+#include <queue>
+#include <vector>
+#include <boost/variant.hpp>
+
+namespace qpid {
+namespace client {
+
+class Message;
+
+/**
+ * Manage incoming messages.
+ *
+ * Uses reference and destination concepts from 0-9 Messsage class.
+ *
+ * Basic messages use special destination and reference names to indicate
+ * get-ok, return etc. messages.
+ *
+ */
+class IncomingMessage {
+  public:
+    /** Accumulate data associated with a set of messages. */
+    struct Reference {
+        std::string data;
+        std::vector<Message> messages;
+    };
+
+    /** Interface to a destination for messages. */
+    class Destination {
+      public:
+        virtual ~Destination();
+
+        /** Pass a message to the destination */
+        virtual void message(const Message&) = 0;
+
+        /** Notify destination of queue-empty contition */
+        virtual void empty() = 0;
+    };
+
+
+    /** A destination that a thread can wait on till a message arrives. */
+    class WaitableDestination : public Destination
+    {
+      public:
+        WaitableDestination();
+        void message(const Message& msg);        
+        void empty();
+        /** Wait till message() or empty() is called. True for message() */
+        bool wait(Message& msgOut);
+        void shutdown();
+
+      private:
+        struct Empty {};
+        typedef boost::variant<Message,Empty> Item;
+        sys::Monitor monitor;
+        std::queue<Item> queue;
+        bool shutdownFlag;
+    };
+ 
+
+
+    /** Add a reference. Throws if already open. */
+    void openReference(const std::string& name);
+
+    /** Get a reference. Throws if not already open. */
+    void appendReference(const std::string& name,
+                         const std::string& data);
+
+    /** Create a message to destination associated with reference
+     *@exception if destination or reference non-existent.
+     */
+    Message&  createMessage(const std::string& destination,
+                            const std::string& reference);
+
+    /** Get a reference.
+     *@exception if non-existent.
+     */
+    Reference& getReference(const std::string& name);
+    
+    /** Close a reference and deliver all its messages.
+     * Throws if not open or a message has an invalid destination.
+     */
+    void closeReference(const std::string& name);
+
+    /** Add a destination.
+     *@exception if a different Destination is already registered
+     * under name.
+     */
+    void addDestination(std::string name, Destination&);
+
+    /** Remove a destination. Throws if does not exist */
+    void removeDestination(std::string name);
+
+    /** Get a destination. Throws if does not exist */
+    Destination& getDestination(const std::string& name);
+  private:
+
+    typedef std::map<std::string, Reference> ReferenceMap;
+    typedef std::map<std::string, Destination*> DestinationMap;
+    
+    Reference& getRefUnlocked(const std::string& name);
+    Destination& getDestUnlocked(const std::string& name);
+
+    mutable sys::Mutex lock;
+    ReferenceMap references;
+    DestinationMap destinations;
+};
+
+}}
+
+
+#endif
-- 
cgit v1.2.1