Reorganize source files

include/beast/websocket/impl/response_op.ipp

@@ -0,0 +1,135 @@
+//
+// 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_RESPONSE_OP_HPP
+#define BEAST_WEBSOCKET_IMPL_RESPONSE_OP_HPP
+
+#include <beast/handler_alloc.hpp>
+#include <beast/http/string_body.hpp>
+#include <beast/http/write.hpp>
+#include <memory>
+
+namespace beast {
+namespace websocket {
+
+// Respond to an upgrade HTTP request
+template<class NextLayer>
+template<class Handler>
+class stream<NextLayer>::response_op
+{
+    using alloc_type =
+        handler_alloc<char, Handler>;
+
+    struct data
+    {
+        stream<NextLayer>& ws;
+        http::response<http::string_body> resp;
+        Handler h;
+        error_code final_ec;
+        bool cont;
+        int state = 0;
+
+        template<class DeducedHandler,
+            class Body, class Headers>
+        data(DeducedHandler&& h_, stream<NextLayer>& ws_,
+            http::message<true, Body, Headers> const& req,
+                bool cont_)
+            : ws(ws_)
+            , resp(ws_.build_response(req))
+            , h(std::forward<DeducedHandler>(h_))
+            , cont(cont_)
+        {
+            if(resp.status != 101)
+                final_ec = error::handshake_failed;
+        }
+    };
+
+    std::shared_ptr<data> d_;
+
+public:
+    response_op(response_op&&) = default;
+    response_op(response_op const&) = default;
+
+    template<class DeducedHandler, class... Args>
+    response_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{}, false);
+    }
+
+    void operator()(
+        error_code ec, bool again = true);
+
+    friend
+    auto asio_handler_allocate(
+        std::size_t size, response_op* op)
+    {
+        return boost_asio_handler_alloc_helpers::
+            allocate(size, op->d_->h);
+    }
+
+    friend
+    auto asio_handler_deallocate(
+        void* p, std::size_t size, response_op* op)
+    {
+        return boost_asio_handler_alloc_helpers::
+            deallocate(p, size, op->d_->h);
+    }
+
+    friend
+    auto asio_handler_is_continuation(response_op* op)
+    {
+        return op->d_->cont;
+    }
+
+    template <class Function>
+    friend
+    auto asio_handler_invoke(Function&& f, response_op* op)
+    {
+        return boost_asio_handler_invoke_helpers::
+            invoke(f, op->d_->h);
+    }
+};
+
+template<class NextLayer>
+template<class Handler>
+void 
+stream<NextLayer>::response_op<Handler>::
+operator()(error_code ec, bool again)
+{
+    auto& d = *d_;
+    d.cont = d.cont || again;
+    while(! ec && d.state != 99)
+    {
+        switch(d.state)
+        {
+        case 0:
+            // send response
+            d.state = 1;
+            http::async_write(d.ws.next_layer_,
+                d.resp, std::move(*this));
+            return;
+
+        // sent response
+        case 1:
+            d.state = 99;
+            ec = d.final_ec;
+            if(! ec)
+                d.ws.role_ = role_type::server;
+            break;
+        }
+    }
+    d.h(ec);
+}
+
+} // websocket
+} // beast
+
+#endif