http_server_api.h

/***
* ==++==
*
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* ==--==
* =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*
* HTTP Library: exposes the entry points to the http server transport apis.
*
* =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
****/

#pragma once

#if _WIN32_WINNT < _WIN32_WINNT_VISTA
#error "Error: http server APIs are not supported in XP"
#endif //_WIN32_WINNT < _WIN32_WINNT_VISTA

#include <memory>

#include "cpprest/http_listener.h"

namespace web { namespace http
{
namespace experimental {
namespace details
{

class http_server;

class http_server_api
{
public:

    static bool __cdecl has_listener();

    static void __cdecl register_server_api(std::unique_ptr<http_server> server_api);

    static void __cdecl unregister_server_api();

    static pplx::task<void> __cdecl register_listener(_In_ web::http::experimental::listener::details::http_listener_impl *pListener);

    static pplx::task<void> __cdecl unregister_listener(_In_ web::http::experimental::listener::details::http_listener_impl *pListener);

    static http_server * __cdecl server_api();

private:

    static pplx::extensibility::critical_section_t s_lock;

    static void unsafe_register_server_api(std::unique_ptr<http_server> server_api);

    // Static instance of the HTTP server API.
    static std::unique_ptr<http_server> s_server_api;

    static pplx::details::atomic_long s_registrations;

    // Static only class. No creation.
    http_server_api();
};

}}}} // namespaces