Reorganize source files

include/beast/websocket/impl/accept_op.ipp

@@ -0,0 +1,146 @@
+//
+// Copyright (c) 2013-2016 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BEAST_WEBSOCKET_IMPL_ACCEPT_OP_HPP
+#define BEAST_WEBSOCKET_IMPL_ACCEPT_OP_HPP
+
+#include <beast/websocket/impl/response_op.ipp>
+#include <beast/handler_alloc.hpp>
+#include <beast/prepare_buffers.hpp>
+#include <beast/http/parser.hpp>
+#include <beast/http/read.hpp>
+#include <cassert>
+#include <memory>
+#include <type_traits>
+
+namespace beast {
+namespace websocket {
+
+// read and respond to an upgrade request
+//
+template<class NextLayer>
+template<class Handler>
+class stream<NextLayer>::accept_op
+{
+    using alloc_type =
+        handler_alloc<char, Handler>;
+
+    struct data
+    {
+        stream<NextLayer>& ws;
+        http::request<http::empty_body> req;
+        Handler h;
+        bool cont;
+        int state = 0;
+
+        template<class DeducedHandler, class Buffers>
+        data(DeducedHandler&& h_, stream<NextLayer>& ws_,
+                Buffers const& buffers)
+            : ws(ws_)
+            , h(std::forward<DeducedHandler>(h_))
+            , cont(boost_asio_handler_cont_helpers::
+                is_continuation(h))
+        {
+            using boost::asio::buffer_copy;
+            using boost::asio::buffer_size;
+            ws.stream_.buffer().commit(buffer_copy(
+                ws.stream_.buffer().prepare(
+                    buffer_size(buffers)), buffers));
+        }
+    };
+
+    std::shared_ptr<data> d_;
+
+public:
+    accept_op(accept_op&&) = default;
+    accept_op(accept_op const&) = default;
+
+    template<class DeducedHandler, class... Args>
+    accept_op(DeducedHandler&& h,
+            stream<NextLayer>& ws, Args&&... args)
+        : d_(std::allocate_shared<data>(alloc_type{h},
+            std::forward<DeducedHandler>(h), ws,
+                std::forward<Args>(args)...))
+    {
+        (*this)(error_code{}, 0, false);
+    }
+
+    void operator()(error_code const& ec)
+    {
+        (*this)(ec, 0);
+    }
+
+    void operator()(error_code const& ec,
+        std::size_t bytes_transferred, bool again = true);
+
+    friend
+    auto asio_handler_allocate(
+        std::size_t size, accept_op* op)
+    {
+        return boost_asio_handler_alloc_helpers::
+            allocate(size, op->d_->h);
+    }
+
+    friend
+    auto asio_handler_deallocate(
+        void* p, std::size_t size, accept_op* op)
+    {
+        return boost_asio_handler_alloc_helpers::
+            deallocate(p, size, op->d_->h);
+    }
+
+    friend
+    auto asio_handler_is_continuation(accept_op* op)
+    {
+        return op->d_->cont;
+    }
+
+    template <class Function>
+    friend
+    auto asio_handler_invoke(Function&& f, accept_op* op)
+    {
+        return boost_asio_handler_invoke_helpers::
+            invoke(f, op->d_->h);
+    }
+};
+
+template<class NextLayer>
+template<class Handler>
+void 
+stream<NextLayer>::accept_op<Handler>::
+operator()(error_code const& ec,
+    std::size_t bytes_transferred, bool again)
+{
+    auto& d = *d_;
+    d.cont = d.cont || again;
+    while(! ec && d.state != 99)
+    {
+        switch(d.state)
+        {
+        case 0:
+            // read message
+            d.state = 1;
+            http::async_read(d.ws.next_layer_,
+                d.ws.stream_.buffer(), d.req,
+                    std::move(*this));
+            return;
+
+        // got message
+        case 1:
+            // respond to request
+            response_op<Handler>{
+                std::move(d.h), d.ws, d.req, true};
+            return;
+        }
+    }
+    d.h(ec);
+}
+
+} // websocket
+} // beast
+
+#endif