Reorganize source files

2016-04-20 12:01:25 -04:00
parent 54f6f0ceba
commit f07cd8ceb4
239 changed files with 2692 additions and 19127 deletions
@@ -0,0 +1,158 @@
+//
+// 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_SSL_IPP_INCLUDED
+#define BEAST_WEBSOCKET_IMPL_SSL_IPP_INCLUDED
+
+#include <beast/async_completion.hpp>
+#include <beast/type_check.hpp>
+
+namespace beast {
+namespace websocket {
+
+namespace detail {
+
+/*
+
+See
+http://stackoverflow.com/questions/32046034/what-is-the-proper-way-to-securely-disconnect-an-asio-ssl-socket/32054476#32054476
+
+Behavior of ssl::stream regarding close_
+
+    If the remote host calls async_shutdown then the
+    local host's async_read will complete with eof.
+
+    If both hosts call async_shutdown then the calls
+    to async_shutdown will complete with eof.
+
+*/
+template<class AsyncStream, class Handler>
+class teardown_ssl_op
+{
+    using stream_type =
+        boost::asio::ssl::stream<AsyncStream>;
+
+    struct data
+    {
+        stream_type& stream;
+        Handler h;
+        bool cont;
+        int state = 0;
+
+        template<class DeducedHandler>
+        data(DeducedHandler&& h_,
+                stream_type& stream_)
+            : stream(stream_)
+            , h(std::forward<DeducedHandler>(h_))
+            , cont(boost_asio_handler_cont_helpers::
+                is_continuation(h))
+        {
+        }
+    };
+
+    std::shared_ptr<data> d_;
+
+public:
+    template<class DeducedHandler>
+    explicit
+    teardown_ssl_op(
+        DeducedHandler&& h,
+            stream_type& stream)
+        : d_(std::make_shared<data>(
+            std::forward<DeducedHandler>(h),
+                stream))
+    {
+        (*this)(error_code{}, false);
+    }
+
+    void
+    operator()(error_code ec, bool again = true);
+
+    friend
+    auto asio_handler_allocate(std::size_t size,
+        teardown_ssl_op* op)
+    {
+        return boost_asio_handler_alloc_helpers::
+            allocate(size, op->d_->h);
+    }
+
+    friend
+    auto asio_handler_deallocate(void* p,
+        std::size_t size, teardown_ssl_op* op)
+    {
+        return boost_asio_handler_alloc_helpers::
+            deallocate(p, size, op->d_->h);
+    }
+
+    friend
+    auto asio_handler_is_continuation(
+        teardown_ssl_op* op)
+    {
+        return op->d_->cont;
+    }
+
+    template <class Function>
+    friend
+    auto asio_handler_invoke(Function&& f,
+        teardown_ssl_op* op)
+    {
+        return boost_asio_handler_invoke_helpers::
+            invoke(f, op->d_->h);
+    }
+};
+
+template<class AsyncStream, class Handler>
+void
+teardown_ssl_op<AsyncStream, 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:
+            d.state = 99;
+            d.stream.async_shutdown(*this);
+            return;
+        }
+    }
+    d.h(ec);
+}
+
+} // detail
+
+//------------------------------------------------------------------------------
+
+template<class AsyncStream>
+void
+teardown(
+    boost::asio::ssl::stream<AsyncStream>& stream,
+        error_code& ec)
+{
+    stream.shutdown(ec);
+}
+
+template<class AsyncStream, class TeardownHandler>
+void
+async_teardown(
+    boost::asio::ssl::stream<AsyncStream>& stream,
+        TeardownHandler&& handler)
+{
+    static_assert(beast::is_Handler<
+        TeardownHandler, void(error_code)>::value,
+            "TeardownHandler requirements not met");
+    detail::teardown_ssl_op<AsyncStream, std::decay_t<
+        TeardownHandler>>{std::forward<TeardownHandler>(
+            handler), stream};
+}
+
+} // websocket
+} // beast
+
+#endif