Refactor Application shutdown using new Service, AsyncService interfaces

src/ripple_net/basics/AsyncService.cpp

@@ -0,0 +1,41 @@
+//------------------------------------------------------------------------------
+/*
+    Copyright (c) 2011-2013, OpenCoin, Inc.
+*/
+//==============================================================================
+
+AsyncService::AsyncService (char const* name, Service& parent)
+    : Service (name, parent)
+{
+}
+
+AsyncService::~AsyncService ()
+{
+    // If this goes off it means the
+    // AsyncService API contract was violated.
+    //
+    bassert (m_pendingIo.get() == 0);
+}
+
+void AsyncService::serviceCountIoPending ()
+{
+    ++m_pendingIo;
+}
+
+bool AsyncService::serviceCountIoComplete (boost::system::error_code const& ec)
+{
+    // If this goes off, the count is unbalanced.
+    bassert (m_pendingIo.get() > 0);
+
+    --m_pendingIo;
+
+    if (! ec || ec == boost::asio::error::operation_aborted)
+        return true;
+
+    return false;
+}
+
+void AsyncService::onServiceIoComplete ()
+{
+    //serviceStopped();
+}