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//===- ContextFactory.h ---------------------------------------------------===//
//
// The MCLinker Project
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef MCLD_MC_CONTEXTFACTORY_H
#define MCLD_MC_CONTEXTFACTORY_H
#ifdef ENABLE_UNITTEST
#include <gtest.h>
#endif
#include <mcld/LD/LDContext.h>
#include <mcld/Support/UniqueGCFactory.h>
#include <mcld/Support/Path.h>
namespace mcld
{
/** \class ContextFactory
* \brief ContextFactory avoids the duplicated LDContext of the same file.
*
* MCLinker is designed for efficient memory usage. Because user can give
* MCLinker the same input file many times on the command line, MCLinker must
* avoid opening identical file twice.
*
* ContextFactory is the guard to prevent redundant opening. MCLinker does not
* create LDContext directly. Instead, it creates LDContext by ContextFactory.
* ContextFactory returns the identical reference of LDContext if it's openend.
*
* @see LDContext
* @see UniqueGCFactoryBase
*/
class ContextFactory : public UniqueGCFactoryBase<sys::fs::Path, LDContext, 0>
{
public:
explicit ContextFactory(size_t pNum);
~ContextFactory();
LDContext* produce();
LDContext* produce(const sys::fs::Path& pPath);
};
} // namespace of mcld
#endif
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