// Copyright (c) 1994, 1995 James Clark

// See the file COPYING for copying permission.

#ifndef PosixStorage_INCLUDED

#define PosixStorage_INCLUDED 1

#ifdef __GNUG__

#pragma interface

#endif

#include "StorageManager.h"

#include "DescriptorManager.h"

#include "Vector.h"

#include "StringC.h"

#include "CharsetInfo.h"

#ifdef SP_NAMESPACE

namespace SP_NAMESPACE {

#endif

class Messenger;

class CharsetInfo;

class UnivCharsetDesc;

class Filename;

class OutputCodingSystem;

class SP_API PosixStorageManager : public IdStorageManager {

public:

  PosixStorageManager(const char *type,

		      const CharsetInfo *filenameCharset,

#ifndef SP_WIDE_SYSTEM

		      const OutputCodingSystem *filenameCodingSystem,

#endif

		      int maxFDs,

		      Boolean restrictFileReading = 0);

  StorageObject *makeStorageObject(const StringC &id,

				   const StringC &baseId,

				   Boolean search,

				   Boolean mayRewind,

				   Messenger &,

				   StringC &foundId);

  Boolean resolveRelative(const StringC &, StringC &, Boolean syntactic = 0)

    const;

  const char *type() const;

  void addSearchDir(const StringC &);

  Boolean transformNeutral(StringC &, Boolean fold, Messenger &) const;

private:

  Boolean isAbsolute(const StringC &) const;

  Boolean isSafe(const StringC &) const;

  StringC extractDir(const StringC &) const;

  StringC combineDir(const StringC &, const StringC &) const;

  PosixStorageManager(const PosixStorageManager &); // undefined

  void operator=(const PosixStorageManager &);	    // undefined

  DescriptorManager descriptorManager_;

  Boolean restrictFileReading_;

#ifndef SP_WIDE_SYSTEM

  const OutputCodingSystem *filenameCodingSystem_;

#endif

  const char *type_;

  Vector<StringC> searchDirs_;

};

class SP_API PosixFdStorageManager : public IdStorageManager {

public:

  PosixFdStorageManager(const char *type,

			const CharsetInfo *filenameCharset);

  StorageObject *makeStorageObject(const StringC &id,

				   const StringC &baseId,

				   Boolean,

				   Boolean mayRewind,

				   Messenger &mgr,

				   StringC &foundId);

  const char *type() const;

  Boolean inheritable() const;

private:

  PosixFdStorageManager(const PosixFdStorageManager &); // undefined

  void operator=(const PosixFdStorageManager &);	    // undefined

  const char *type_;

};

#ifdef SP_NAMESPACE

}

#endif

#endif /* not PosixStorage_INCLUDED */