From 469bbcf0701e1eb8a6670c23145b0da87357e178 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Sun, 25 Mar 2012 20:00:08 +0000
Subject: Code is all reorganized.  We're about ready to release.  I should
 write up a little explenation of the arrangement.

---
 src/stable/streamstack.cpp | 234 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 234 insertions(+)
 create mode 100644 src/stable/streamstack.cpp

(limited to 'src/stable/streamstack.cpp')

diff --git a/src/stable/streamstack.cpp b/src/stable/streamstack.cpp
new file mode 100644
index 0000000..d45306d
--- /dev/null
+++ b/src/stable/streamstack.cpp
@@ -0,0 +1,234 @@
+/*
+ * Copyright (C) 2007-2011 Xagasoft, All rights reserved.
+ *
+ * This file is part of the libbu++ library and is released under the
+ * terms of the license contained in the file LICENSE.
+ */
+
+#include "bu/streamstack.h"
+
+Bu::StreamStack::StreamStack()
+{
+}
+
+Bu::StreamStack::StreamStack( Bu::Stream *pStream )
+{
+	lFilts.prepend( pStream );
+}
+
+Bu::StreamStack::~StreamStack()
+{
+	clear();
+}
+
+bool Bu::StreamStack::isEmpty()
+{
+	return lFilts.isEmpty();
+}
+
+bool Bu::StreamStack::hasStream()
+{
+	return !lFilts.isEmpty();
+}
+
+void Bu::StreamStack::setStream( Bu::Stream *pStream )
+{
+	if( !lFilts.isEmpty() )
+		throw Bu::ExceptionBase("There is already a stream set.");
+
+	lFilts.prepend( pStream );
+}
+
+void Bu::StreamStack::clear()
+{
+	for( FilterList::iterator i = lFilts.begin(); i; i++ )
+	{
+		delete *i;
+	}
+
+	lFilts.clear();
+}
+
+void Bu::StreamStack::popFilter()
+{
+	if( lFilts.isEmpty() )
+		return;
+
+	delete lFilts.first();
+	lFilts.erase( lFilts.begin() );
+}
+
+Bu::Stream *Bu::StreamStack::getTop()
+{
+	checkStack();
+
+	return lFilts.first();
+}
+
+Bu::Stream *Bu::StreamStack::getStream()
+{
+	checkStack();
+
+	return lFilts.last();
+}
+
+void Bu::StreamStack::close()
+{
+	checkStack();
+
+	lFilts.first()->close();
+}
+
+Bu::size Bu::StreamStack::read( void *pBuf, Bu::size nBytes )
+{
+	checkStack();
+
+	return lFilts.first()->read( pBuf, nBytes );
+}
+
+Bu::size Bu::StreamStack::write( const void *pBuf, Bu::size nBytes )
+{
+	checkStack();
+
+	return lFilts.first()->write( pBuf, nBytes );
+}
+
+Bu::size Bu::StreamStack::write( const Bu::String &sBuf )
+{
+	checkStack();
+
+	return lFilts.first()->write( sBuf );
+}
+
+Bu::size Bu::StreamStack::tell()
+{
+	checkStack();
+
+	return lFilts.first()->tell();
+}
+
+void Bu::StreamStack::seek( Bu::size offset )
+{
+	checkStack();
+
+	lFilts.first()->seek( offset );
+}
+
+void Bu::StreamStack::setPos( Bu::size pos )
+{
+	checkStack();
+
+	lFilts.first()->setPos( pos );
+}
+
+void Bu::StreamStack::setPosEnd( Bu::size pos )
+{
+	checkStack();
+
+	lFilts.first()->setPosEnd( pos );
+}
+
+bool Bu::StreamStack::isEos()
+{
+	checkStack();
+
+	return lFilts.first()->isEos();
+}
+
+bool Bu::StreamStack::isOpen()
+{
+	checkStack();
+
+	return lFilts.first()->isOpen();
+}
+
+void Bu::StreamStack::flush()
+{
+	checkStack();
+
+	lFilts.first()->flush();
+}
+
+bool Bu::StreamStack::canRead()
+{
+	checkStack();
+
+	return lFilts.first()->canRead();
+}
+
+bool Bu::StreamStack::canWrite()
+{
+	checkStack();
+
+	return lFilts.first()->canWrite();
+}
+
+bool Bu::StreamStack::isReadable()
+{
+	checkStack();
+
+	return lFilts.first()->isReadable();
+}
+
+bool Bu::StreamStack::isWritable()
+{
+	checkStack();
+
+	return lFilts.first()->isWritable();
+}
+
+bool Bu::StreamStack::isSeekable()
+{
+	checkStack();
+
+	return lFilts.first()->isSeekable();
+}
+
+bool Bu::StreamStack::isBlocking()
+{
+	checkStack();
+
+	return lFilts.first()->isBlocking();
+}
+
+void Bu::StreamStack::setBlocking( bool bBlocking )
+{
+	checkStack();
+
+	lFilts.first()->setBlocking( bBlocking );
+}
+
+void Bu::StreamStack::setSize( Bu::size iSize )
+{
+	checkStack();
+
+	lFilts.first()->setSize( iSize );
+}
+
+Bu::size Bu::StreamStack::getSize() const
+{
+	checkStack();
+	
+	return lFilts.first()->getSize();
+}
+
+Bu::size Bu::StreamStack::getBlockSize() const
+{
+	checkStack();
+
+	return lFilts.first()->getBlockSize();
+}
+
+Bu::String Bu::StreamStack::getLocation() const
+{
+	checkStack();
+
+	return lFilts.first()->getLocation();
+}
+
+inline void Bu::StreamStack::checkStack() const
+{
+	if( lFilts.isEmpty() )
+		throw Bu::ExceptionBase("StreamStack is empty.");
+}
+
-- 
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