/*
 * barrier -- mouse and keyboard sharing utility
 * Copyright (C) 2012-2016 Symless Ltd.
 * Copyright (C) 2002 Chris Schoeneman
 *
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file LICENSE that should have accompanied this file.
 *
 * This package 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 more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include "io/XIO.h"
#include "base/XBase.h"
#include "common/basic_types.h"

//! Generic socket exception
XBASE_SUBCLASS(XSocket, XBase);

//! Socket bad address exception
/*!
Thrown when attempting to create an invalid network address.
*/
class XSocketAddress : public XSocket {
public:
    //! Failure codes
    enum EError {
        kUnknown,        //!< Unknown error
        kNotFound,        //!< The hostname is unknown
        kNoAddress,        //!< The hostname is valid but has no IP address
        kUnsupported,    //!< The hostname is valid but has no supported address
        kBadPort        //!< The port is invalid
    };

    XSocketAddress(EError, const std::string& hostname, int port) noexcept;
    virtual ~XSocketAddress() noexcept { }

    //! @name accessors
    //@{

    //! Get the error code
    EError getError() const noexcept;
    //! Get the hostname
    std::string getHostname() const noexcept;
    //! Get the port
    int getPort() const noexcept;

    //@}

protected:
    // XBase overrides
    virtual std::string getWhat() const noexcept;

private:
    EError                m_error;
    std::string m_hostname;
    int                    m_port;
};

//! I/O closing exception
/*!
Thrown if a stream cannot be closed.
*/
XBASE_SUBCLASS_FORMAT(XSocketIOClose, XIOClose);

//! Socket cannot bind address exception
/*!
Thrown when a socket cannot be bound to an address.
*/
XBASE_SUBCLASS_FORMAT(XSocketBind, XSocket);

//! Socket address in use exception
/*!
Thrown when a socket cannot be bound to an address because the address
is already in use.
*/
XBASE_SUBCLASS(XSocketAddressInUse, XSocketBind);

//! Cannot connect socket exception
/*!
Thrown when a socket cannot connect to a remote endpoint.
*/
XBASE_SUBCLASS_FORMAT(XSocketConnect, XSocket);

//! Cannot create socket exception
/*!
Thrown when a socket cannot be created (by the operating system).
*/
XBASE_SUBCLASS_FORMAT(XSocketCreate, XSocket);
