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-rw-r--r--3rdparty/asio/include/asio/detail/reactive_socket_recvfrom_op.hpp58
1 files changed, 42 insertions, 16 deletions
diff --git a/3rdparty/asio/include/asio/detail/reactive_socket_recvfrom_op.hpp b/3rdparty/asio/include/asio/detail/reactive_socket_recvfrom_op.hpp
index 309a032a7ab..0d7673a1120 100644
--- a/3rdparty/asio/include/asio/detail/reactive_socket_recvfrom_op.hpp
+++ b/3rdparty/asio/include/asio/detail/reactive_socket_recvfrom_op.hpp
@@ -2,7 +2,7 @@
// detail/reactive_socket_recvfrom_op.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
-// Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+// Copyright (c) 2003-2021 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)
@@ -19,6 +19,9 @@
#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/handler_work.hpp"
#include "asio/detail/memory.hpp"
#include "asio/detail/reactor_op.hpp"
#include "asio/detail/socket_ops.hpp"
@@ -32,10 +35,12 @@ template <typename MutableBufferSequence, typename Endpoint>
class reactive_socket_recvfrom_op_base : public reactor_op
{
public:
- reactive_socket_recvfrom_op_base(socket_type socket, int protocol_type,
+ reactive_socket_recvfrom_op_base(const asio::error_code& success_ec,
+ socket_type socket, int protocol_type,
const MutableBufferSequence& buffers, Endpoint& endpoint,
socket_base::message_flags flags, func_type complete_func)
- : reactor_op(&reactive_socket_recvfrom_op_base::do_perform, complete_func),
+ : reactor_op(success_ec,
+ &reactive_socket_recvfrom_op_base::do_perform, complete_func),
socket_(socket),
protocol_type_(protocol_type),
buffers_(buffers),
@@ -49,14 +54,27 @@ public:
reactive_socket_recvfrom_op_base* o(
static_cast<reactive_socket_recvfrom_op_base*>(base));
- buffer_sequence_adapter<asio::mutable_buffer,
- MutableBufferSequence> bufs(o->buffers_);
+ typedef buffer_sequence_adapter<asio::mutable_buffer,
+ MutableBufferSequence> bufs_type;
std::size_t addr_len = o->sender_endpoint_.capacity();
- status result = socket_ops::non_blocking_recvfrom(o->socket_,
- bufs.buffers(), bufs.count(), o->flags_,
- o->sender_endpoint_.data(), &addr_len,
- o->ec_, o->bytes_transferred_) ? done : not_done;
+ status result;
+ if (bufs_type::is_single_buffer)
+ {
+ result = socket_ops::non_blocking_recvfrom1(
+ o->socket_, bufs_type::first(o->buffers_).data(),
+ bufs_type::first(o->buffers_).size(), o->flags_,
+ o->sender_endpoint_.data(), &addr_len,
+ o->ec_, o->bytes_transferred_) ? done : not_done;
+ }
+ else
+ {
+ bufs_type bufs(o->buffers_);
+ result = socket_ops::non_blocking_recvfrom(o->socket_,
+ bufs.buffers(), bufs.count(), o->flags_,
+ o->sender_endpoint_.data(), &addr_len,
+ o->ec_, o->bytes_transferred_) ? done : not_done;
+ }
if (result && !o->ec_)
o->sender_endpoint_.resize(addr_len);
@@ -75,22 +93,25 @@ private:
socket_base::message_flags flags_;
};
-template <typename MutableBufferSequence, typename Endpoint, typename Handler>
+template <typename MutableBufferSequence, typename Endpoint,
+ typename Handler, typename IoExecutor>
class reactive_socket_recvfrom_op :
public reactive_socket_recvfrom_op_base<MutableBufferSequence, Endpoint>
{
public:
ASIO_DEFINE_HANDLER_PTR(reactive_socket_recvfrom_op);
- reactive_socket_recvfrom_op(socket_type socket, int protocol_type,
+ reactive_socket_recvfrom_op(const asio::error_code& success_ec,
+ socket_type socket, int protocol_type,
const MutableBufferSequence& buffers, Endpoint& endpoint,
- socket_base::message_flags flags, Handler& handler)
+ socket_base::message_flags flags, Handler& handler,
+ const IoExecutor& io_ex)
: reactive_socket_recvfrom_op_base<MutableBufferSequence, Endpoint>(
- socket, protocol_type, buffers, endpoint, flags,
+ success_ec, socket, protocol_type, buffers, endpoint, flags,
&reactive_socket_recvfrom_op::do_complete),
- handler_(ASIO_MOVE_CAST(Handler)(handler))
+ handler_(ASIO_MOVE_CAST(Handler)(handler)),
+ work_(handler_, io_ex)
{
- handler_work<Handler>::start(handler_);
}
static void do_complete(void* owner, operation* base,
@@ -101,10 +122,14 @@ public:
reactive_socket_recvfrom_op* o(
static_cast<reactive_socket_recvfrom_op*>(base));
ptr p = { asio::detail::addressof(o->handler_), o, o };
- handler_work<Handler> w(o->handler_);
ASIO_HANDLER_COMPLETION((*o));
+ // Take ownership of the operation's outstanding work.
+ handler_work<Handler, IoExecutor> w(
+ ASIO_MOVE_CAST2(handler_work<Handler, IoExecutor>)(
+ o->work_));
+
// 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
@@ -128,6 +153,7 @@ public:
private:
Handler handler_;
+ handler_work<Handler, IoExecutor> work_;
};
} // namespace detail