Ichthyostega
a344604f1b
Clang doesn't allow to declare a private nested class as friend. This is unfortunate, but likely correct to the letter of the standard. As a workaround, now we're creating the instances within a static function of DependencyFactory -- in the end this improves readability A second issue fixed with this changeset is the scope of the marker function. Clang is right, this isn't ADL, thus an inline friend definition is simply not visible outside the class.
111 lines
3 KiB
C++
111 lines
3 KiB
C++
/*
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DIAGNOSTIC-BUFFER-PROVIDER.hpp - helper for testing against the BufferProvider interface
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Copyright (C) Lumiera.org
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2011, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/** @file diagnostic-buffer-provider.hpp
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** A facility for writing unit-tests targeting the BufferProvider interface.
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**
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** @see buffer-provider-protocol-test.cpp
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*/
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#ifndef PROC_ENGINE_DIAGNOSTIC_BUFFR_PROVIDER_H
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#define PROC_ENGINE_DIAGNOSTIC_BUFFR_PROVIDER_H
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#include "lib/error.hpp"
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#include "lib/depend.hpp"
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#include "lib/util.hpp"
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#include "proc/engine/type-handler.hpp"
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#include "proc/engine/buffer-provider.hpp"
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#include <boost/scoped_ptr.hpp>
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#include <boost/noncopyable.hpp>
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namespace proc {
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namespace engine {
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namespace error = lumiera::error;
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/**
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* simple BufferProvider implementation
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* with additional allocation tracking
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*/
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class TrackingHeapBlockProvider;
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/********************************************************************
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* Helper for unit tests: Buffer provider reference implementation.
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*
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* @todo write type comment
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*/
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class DiagnosticBufferProvider
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: boost::noncopyable
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{
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boost::scoped_ptr<TrackingHeapBlockProvider> pImpl_;
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static lib::Depend<DiagnosticBufferProvider> diagnostics;
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TrackingHeapBlockProvider& reset();
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bool isCurrent (BufferProvider const&);
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DiagnosticBufferProvider();
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~DiagnosticBufferProvider();
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friend class lib::DependencyFactory;
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public:
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/** build a new Diagnostic Buffer Provider instance,
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* discard the existing one. Use the static query API
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* for investigating collected data. */
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static BufferProvider& build();
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/** access the diagnostic API of the buffer provider
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* @throw error::Invalid if the given provider doesn't allow
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* for diagnostic access or wasn't registered beforehand.
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*/
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static DiagnosticBufferProvider&
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access (BufferProvider const& );
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/* === diagnostic API === */
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bool buffer_was_used (uint bufferID) const;
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bool buffer_was_closed (uint bufferID) const;
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void* accessMemory (uint bufferID) const;
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bool all_buffers_released() const;
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private:
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};
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}} // namespace proc::engine
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#endif
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