1 files changed, 118 insertions, 0 deletions
diff --git a/lib/asio/detail/win_iocp_socket_recvmsg_op.hpp b/lib/asio/detail/win_iocp_socket_recvmsg_op.hpp
new file mode 100644
index 0000000..78f36b7
--- /dev/null
+++ b/lib/asio/detail/win_iocp_socket_recvmsg_op.hpp
@@ -0,0 +1,118 @@
+//
+// detail/win_iocp_socket_recvmsg_op.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff 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 ASIO_DETAIL_WIN_IOCP_SOCKET_RECVMSG_OP_HPP
+#define ASIO_DETAIL_WIN_IOCP_SOCKET_RECVMSG_OP_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_IOCP)
+
+#include "asio/detail/bind_handler.hpp"
+#include "asio/detail/buffer_sequence_adapter.hpp"
+#include "asio/detail/fenced_block.hpp"
+#include "asio/detail/handler_alloc_helpers.hpp"
+#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/memory.hpp"
+#include "asio/detail/operation.hpp"
+#include "asio/detail/socket_ops.hpp"
+#include "asio/error.hpp"
+#include "asio/socket_base.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+namespace detail {
+
+template <typename MutableBufferSequence, typename Handler>
+class win_iocp_socket_recvmsg_op : public operation
+{
+public:
+  ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_recvmsg_op);
+
+  win_iocp_socket_recvmsg_op(
+      socket_ops::weak_cancel_token_type cancel_token,
+      const MutableBufferSequence& buffers,
+      socket_base::message_flags& out_flags, Handler& handler)
+    : operation(&win_iocp_socket_recvmsg_op::do_complete),
+      cancel_token_(cancel_token),
+      buffers_(buffers),
+      out_flags_(out_flags),
+      handler_(ASIO_MOVE_CAST(Handler)(handler))
+  {
+    handler_work<Handler>::start(handler_);
+  }
+
+  static void do_complete(void* owner, operation* base,
+      const asio::error_code& result_ec,
+      std::size_t bytes_transferred)
+  {
+    asio::error_code ec(result_ec);
+
+    // Take ownership of the operation object.
+    win_iocp_socket_recvmsg_op* o(
+        static_cast<win_iocp_socket_recvmsg_op*>(base));
+    ptr p = { asio::detail::addressof(o->handler_), o, o };
+    handler_work<Handler> w(o->handler_);
+
+    ASIO_HANDLER_COMPLETION((*o));
+
+#if defined(ASIO_ENABLE_BUFFER_DEBUGGING)
+    // Check whether buffers are still valid.
+    if (owner)
+    {
+      buffer_sequence_adapter<asio::mutable_buffer,
+          MutableBufferSequence>::validate(o->buffers_);
+    }
+#endif // defined(ASIO_ENABLE_BUFFER_DEBUGGING)
+
+    socket_ops::complete_iocp_recvmsg(o->cancel_token_, ec);
+    o->out_flags_ = 0;
+
+    // Make a copy of the handler so that the memory can be deallocated before
+    // the upcall is made. Even if we're not about to make an upcall, a
+    // sub-object of the handler may be the true owner of the memory associated
+    // with the handler. Consequently, a local copy of the handler is required
+    // to ensure that any owning sub-object remains valid until after we have
+    // deallocated the memory here.
+    detail::binder2<Handler, asio::error_code, std::size_t>
+      handler(o->handler_, ec, bytes_transferred);
+    p.h = asio::detail::addressof(handler.handler_);
+    p.reset();
+
+    // Make the upcall if required.
+    if (owner)
+    {
+      fenced_block b(fenced_block::half);
+      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
+      w.complete(handler, handler.handler_);
+      ASIO_HANDLER_INVOCATION_END;
+    }
+  }
+
+private:
+  socket_ops::weak_cancel_token_type cancel_token_;
+  MutableBufferSequence buffers_;
+  socket_base::message_flags& out_flags_;
+  Handler handler_;
+};
+
+} // namespace detail
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_IOCP)
+
+#endif // ASIO_DETAIL_WIN_IOCP_SOCKET_RECVMSG_OP_HPP