1 files changed, 166 insertions, 0 deletions

diff --git a/SrcShared/EmAction.cpp b/SrcShared/EmAction.cpp
new file mode 100644
index 0000000..9e5f4a1
--- /dev/null
+++ b/SrcShared/EmAction.cpp
@@ -0,0 +1,166 @@
+/* -*- mode: C++; tab-width: 4 -*- */
+/* ===================================================================== *\
+	Copyright (c) 1998-2001 Palm, Inc. or its subsidiaries.
+	All rights reserved.
+
+	This file is part of the Palm OS Emulator.
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+\* ===================================================================== */
+
+#include "EmCommon.h"
+#include "EmAction.h"
+
+#include "ErrorHandling.h"		// Errors::ReportIfError
+#include "Strings.r.h"			// kStr_GenericOperation
+
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionComposite::EmActionComposite
+// ---------------------------------------------------------------------------
+
+EmActionComposite::EmActionComposite (void) :
+	EmAction (kStr_GenericOperation)
+{
+}
+
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionComposite::~EmActionComposite
+// ---------------------------------------------------------------------------
+
+EmActionComposite::~EmActionComposite (void)
+{
+}
+
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionComposite::Do
+// ---------------------------------------------------------------------------
+
+void EmActionComposite::Do (void)
+{
+	EmActionList::iterator	iter = fActions.begin ();
+
+	while (iter != fActions.end ())
+	{
+		(*iter)->Do ();
+		++iter;
+	}
+}
+
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionComposite::AddAction
+// ---------------------------------------------------------------------------
+
+void EmActionComposite::AddAction (EmAction* action)
+{
+	fActions.push_back (action);
+}
+
+
+#pragma mark -
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionHandler::EmActionHandler
+// ---------------------------------------------------------------------------
+
+EmActionHandler::EmActionHandler (void) :
+	fActions ()
+{
+}
+
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionHandler::~EmActionHandler
+// ---------------------------------------------------------------------------
+
+EmActionHandler::~EmActionHandler (void)
+{
+	this->DeleteAll ();
+}
+
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionHandler::PostAction
+// ---------------------------------------------------------------------------
+
+void EmActionHandler::PostAction (EmAction* action)
+{
+	omni_mutex_lock	lock (fMutex);
+
+	fActions.push_back (action);
+}
+
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionHandler::GetNextAction
+// ---------------------------------------------------------------------------
+
+EmAction* EmActionHandler::GetNextAction (void)
+{
+	omni_mutex_lock	lock (fMutex);
+
+	EmAction*	result = NULL;
+
+	if (!fActions.empty ())
+	{
+		result = fActions.front ();
+		fActions.erase (fActions.begin ());
+	}
+
+	return result;
+}
+
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionHandler::GetNextAction
+// ---------------------------------------------------------------------------
+//
+// This function is an EXCEPTION_CATCH_POINT.
+
+void EmActionHandler::DoAll (void)
+{
+	EmAction*	action = NULL;
+	while ((action = this->GetNextAction ()) != NULL)
+	{
+		try
+		{
+			action->Do ();
+		}
+		catch (ErrCode errCode)
+		{
+			this->DeleteAll ();
+
+			StrCode	operation = action->GetDescription ();
+
+			Errors::ReportIfError (operation, errCode, 0, false);
+		}
+
+		delete action;
+	}
+}
+
+
+// ---------------------------------------------------------------------------
+//		¥ EmActionHandler::DeleteAll
+// ---------------------------------------------------------------------------
+
+void EmActionHandler::DeleteAll (void)
+{
+	omni_mutex_lock	lock (fMutex);
+
+	EmActionList::iterator	iter = fActions.begin ();
+
+	while (iter != fActions.end ())
+	{
+		delete *iter;
+		++iter;
+	}
+
+	fActions.clear ();
+}