From 138a87e915ad3aff184730415105f94c874174bf Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Wed, 20 Apr 2011 16:26:40 +0000
Subject: Rename Ingen::Engine to Ingen::Server (hopefully avoid odd name
 clases and fix #675).

git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@3184 a436a847-0d15-0410-975c-d299462d15a1
---
 src/server/Buffer.hpp | 97 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 src/server/Buffer.hpp

(limited to 'src/server/Buffer.hpp')

diff --git a/src/server/Buffer.hpp b/src/server/Buffer.hpp
new file mode 100644
index 00000000..e44915b3
--- /dev/null
+++ b/src/server/Buffer.hpp
@@ -0,0 +1,97 @@
+/* This file is part of Ingen.
+ * Copyright 2007-2011 David Robillard <http://drobilla.net>
+ *
+ * Ingen 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.
+ *
+ * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef INGEN_ENGINE_BUFFER_HPP
+#define INGEN_ENGINE_BUFFER_HPP
+
+#include <cstddef>
+#include <cassert>
+#include <boost/utility.hpp>
+#include <boost/intrusive_ptr.hpp>
+#include "raul/Deletable.hpp"
+#include "raul/SharedPtr.hpp"
+#include "ingen/PortType.hpp"
+#include "types.hpp"
+#include "BufferFactory.hpp"
+
+namespace Ingen {
+namespace Server {
+
+class Context;
+class Engine;
+class BufferFactory;
+
+class Buffer : public boost::noncopyable, public Raul::Deletable
+{
+public:
+	Buffer(BufferFactory& bufs, PortType type, size_t size)
+		: _factory(bufs)
+		, _type(type)
+		, _size(size)
+		, _next(NULL)
+		, _refs(0)
+	{}
+
+	/** Clear contents and reset state */
+	virtual void clear() = 0;
+
+	virtual void resize(size_t size) { _size = size; }
+
+	virtual void*       port_data(PortType port_type, SampleCount offset=0) = 0;
+	virtual const void* port_data(PortType port_type, SampleCount offset=0) const = 0;
+
+	/** Rewind (ie reset read pointer), but leave contents unchanged */
+	virtual void rewind() const {}
+
+	virtual void copy(Context& context, const Buffer* src) = 0;
+
+	virtual void prepare_read(Context& context) {}
+	virtual void prepare_write(Context& context) {}
+
+	PortType type() const { return _type; }
+	size_t           size() const { return _size; }
+
+	inline void ref() { ++_refs; }
+
+	inline void deref() {
+		assert(_refs > 0);
+		if ((--_refs) == 0)
+			_factory.recycle(this);
+	}
+
+protected:
+	BufferFactory& _factory;
+	PortType       _type;
+	size_t         _size;
+
+	friend class BufferFactory;
+	virtual ~Buffer() {}
+
+private:
+	Buffer* _next; ///< Intrusive linked list for BufferFactory
+	size_t  _refs; ///< Intrusive reference count for intrusive_ptr
+};
+
+} // namespace Server
+} // namespace Ingen
+
+namespace boost {
+inline void intrusive_ptr_add_ref(Ingen::Server::Buffer* b) { b->ref(); }
+inline void intrusive_ptr_release(Ingen::Server::Buffer* b) { b->deref(); }
+}
+
+#endif // INGEN_ENGINE_BUFFER_HPP
-- 
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