From dfc598af62ccb812ebd53d5d8532f61b01b18245 Mon Sep 17 00:00:00 2001
From: Andrew Stitcher <astitcher@apache.org>
Date: Thu, 24 Jul 2008 05:31:07 +0000
Subject: Refactored so that Dispatcher is now independent from DispatchHandle

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@679276 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/sys/Dispatcher.cpp |  8 +++----
 cpp/src/qpid/sys/Dispatcher.h   |  2 +-
 cpp/src/qpid/sys/Poller.h       | 52 ++++++++++++++++++++++++-----------------
 3 files changed, 34 insertions(+), 28 deletions(-)

(limited to 'cpp/src')

diff --git a/cpp/src/qpid/sys/Dispatcher.cpp b/cpp/src/qpid/sys/Dispatcher.cpp
index 1df88ce0ae..3f901737fd 100644
--- a/cpp/src/qpid/sys/Dispatcher.cpp
+++ b/cpp/src/qpid/sys/Dispatcher.cpp
@@ -38,12 +38,10 @@ Dispatcher::~Dispatcher() {
 void Dispatcher::run() {
     do {
         Poller::Event event = poller->wait();
-        DispatchHandle* h =
-            boost::polymorphic_downcast<DispatchHandle*>(event.handle);
 
         // If can read/write then dispatch appropriate callbacks        
-        if (h) {
-            h->dispatchCallbacks(event.type);
+        if (event.handle) {
+            event.process();
         } else {
             // Handle shutdown
             switch (event.type) {
@@ -344,7 +342,7 @@ void DispatchHandle::doDelete() {
     deferDelete();
 }
 
-void DispatchHandle::dispatchCallbacks(Poller::EventType type) {
+void DispatchHandle::processEvent(Poller::EventType type) {
     // Note that we are now doing the callbacks
     {
     ScopedLock<Mutex> lock(stateLock);
diff --git a/cpp/src/qpid/sys/Dispatcher.h b/cpp/src/qpid/sys/Dispatcher.h
index cd7a0bdb66..77a205cc8b 100644
--- a/cpp/src/qpid/sys/Dispatcher.h
+++ b/cpp/src/qpid/sys/Dispatcher.h
@@ -78,7 +78,7 @@ protected:
     void doDelete();
 
 private:
-    void dispatchCallbacks(Poller::EventType dir);
+    void processEvent(Poller::EventType dir);
 };
 
 class Dispatcher : public Runnable {
diff --git a/cpp/src/qpid/sys/Poller.h b/cpp/src/qpid/sys/Poller.h
index 86e7181df8..bd0fff1d02 100644
--- a/cpp/src/qpid/sys/Poller.h
+++ b/cpp/src/qpid/sys/Poller.h
@@ -29,32 +29,11 @@
 namespace qpid {
 namespace sys {
 
-/**
- * Handle class to use for polling
- */
-class IOHandle;
-class Poller;
-class PollerHandlePrivate;
-class PollerHandle {
-    friend class Poller;
-
-    PollerHandlePrivate* const impl;
-
-public:
-    PollerHandle(const IOHandle& h);
-    
-    // Usual way to delete (will defer deletion until we
-    // can't be returned from a Poller::wait any more)
-    void deferDelete();
-    
-    // Class clients shouldn't ever use this
-    virtual ~PollerHandle();
-};
-
 /**
  * Poller: abstract class to encapsulate a file descriptor poll to be used
  * by a reactor
  */
+class PollerHandle;
 class PollerPrivate;
 class Poller {
     PollerPrivate* const impl;
@@ -87,6 +66,8 @@ public:
           handle(handle0),
           type(type0) {
         }
+        
+        void process();
     };
     
     Poller();
@@ -101,5 +82,32 @@ public:
     Event wait(Duration timeout = TIME_INFINITE);
 };
 
+/**
+ * Handle class to use for polling
+ */
+class IOHandle;
+class PollerHandlePrivate;
+class PollerHandle {
+    friend class Poller;
+    friend struct Poller::Event;
+
+    PollerHandlePrivate* const impl;
+    virtual void processEvent(Poller::EventType) {};
+
+public:
+    PollerHandle(const IOHandle& h);
+    
+    // Usual way to delete (will defer deletion until we
+    // can't be returned from a Poller::wait any more)
+    void deferDelete();
+    
+    // Class clients shouldn't ever use this
+    virtual ~PollerHandle();
+};
+
+inline void Poller::Event::process() {
+            handle->processEvent(type);
+}
+
 }}
 #endif // _sys_Poller_h
-- 
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