/*

  error.h - wraps a gpgme error

  Copyright (C) 2003, 2007 Klarälvdalens Datakonsult AB

  2016 Bundesamt für Sicherheit in der Informationstechnik

  Software engineering by Intevation GmbH

  This file is part of GPGME++.

  GPGME++ is free software; you can redistribute it and/or

  modify it under the terms of the GNU Library General Public

  License as published by the Free Software Foundation; either

  version 2 of the License, or (at your option) any later version.

  GPGME++ 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 Library General Public License for more details.

  You should have received a copy of the GNU Library General Public License

  along with GPGME++; see the file COPYING.LIB.  If not, write to the

  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

  Boston, MA 02110-1301, USA.

*/

// -*- c++ -*-

#ifndef __GPGMEPP_ERROR_H__

#define __GPGMEPP_ERROR_H__

#include "global.h"

#include <string>

#include <iosfwd>

#include <gpg-error.h>

#ifndef GPGMEPP_ERR_SOURCE_DEFAULT

# define GPGMEPP_ERR_SOURCE_DEFAULT GPG_ERR_SOURCE_USER_1

#endif

namespace GpgME

{

class GPGMEPP_EXPORT Error

{

public:

    Error() : mErr(0), mMessage() {}

    explicit Error(unsigned int e) : mErr(e), mMessage() {}

    const char *source() const;

    const char *asString() const;

    int code() const;

    int sourceID() const;

    bool isCanceled() const;

    unsigned int encodedError() const

    {

        return mErr;

    }

    int toErrno() const;

    static bool hasSystemError();

    static Error fromSystemError(unsigned int src = GPGMEPP_ERR_SOURCE_DEFAULT);

    static void setSystemError(gpg_err_code_t err);

    static void setErrno(int err);

    static Error fromErrno(int err, unsigned int src = GPGMEPP_ERR_SOURCE_DEFAULT);

    static Error fromCode(unsigned int err, unsigned int src = GPGMEPP_ERR_SOURCE_DEFAULT);

    GPGMEPP_MAKE_SAFE_BOOL_OPERATOR(mErr  &&!isCanceled())

private:

    unsigned int mErr;

    mutable std::string mMessage;

};

GPGMEPP_EXPORT std::ostream &operator<<(std::ostream &os, const Error &err;;

} // namespace GpgME

#endif /* __GPGMEPP_ERROR_H__ */