connection.hpp

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/*
 * Copyright (c) 2014, Peter Thorson. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the WebSocket++ Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifndef WEBSOCKETPP_TRANSPORT_BASE_CON_HPP
#define WEBSOCKETPP_TRANSPORT_BASE_CON_HPP

#include <websocketpp/common/cpp11.hpp>
#include <websocketpp/common/connection_hdl.hpp>
#include <websocketpp/common/functional.hpp>
#include <websocketpp/common/system_error.hpp>

#include <string>

namespace websocketpp {

namespace transport {

typedef lib::function<void(lib::error_code const &)> init_handler;

typedef lib::function<void(lib::error_code const &,size_t)> read_handler;

typedef lib::function<void(lib::error_code const &)> write_handler;

typedef lib::function<void(lib::error_code const &)> timer_handler;

typedef lib::function<void(lib::error_code const &)> shutdown_handler;

typedef lib::function<void()> interrupt_handler;

typedef lib::function<void()> dispatch_handler;

struct buffer {
    buffer(char const * b, size_t l) : buf(b),len(l) {}

    char const * buf;
    size_t len;
};

namespace error {
enum value {
    general = 1,

    pass_through,

    invalid_num_bytes,

    double_read,

    operation_aborted,

    operation_not_supported,

    eof,

    tls_short_read,

    timeout,

    action_after_shutdown,

    tls_error
};

class category : public lib::error_category {
    public:
    category() {}

    char const * name() const _WEBSOCKETPP_NOEXCEPT_TOKEN_ {
        return "websocketpp.transport";
    }

    std::string message(int value) const {
        switch(value) {
            case general:
                return "Generic transport policy error";
            case pass_through:
                return "Underlying Transport Error";
            case invalid_num_bytes:
                return "async_read_at_least call requested more bytes than buffer can store";
            case operation_aborted:
                return "The operation was aborted";
            case operation_not_supported:
                return "The operation is not supported by this transport";
            case eof:
                return "End of File";
            case tls_short_read:
                return "TLS Short Read";
            case timeout:
                return "Timer Expired";
            case action_after_shutdown:
                return "A transport action was requested after shutdown";
            case tls_error:
                return "Generic TLS related error";
            default:
                return "Unknown";
        }
    }
};

inline lib::error_category const & get_category() {
    static category instance;
    return instance;
}

inline lib::error_code make_error_code(error::value e) {
    return lib::error_code(static_cast<int>(e), get_category());
}

} // namespace error
} // namespace transport
} // namespace websocketpp
_WEBSOCKETPP_ERROR_CODE_ENUM_NS_START_
template<> struct is_error_code_enum<websocketpp::transport::error::value>
{
    static bool const value = true;
};
_WEBSOCKETPP_ERROR_CODE_ENUM_NS_END_

#endif // WEBSOCKETPP_TRANSPORT_BASE_CON_HPP