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-rw-r--r--3rdparty/asio/include/asio/impl/read_at.hpp427
1 files changed, 260 insertions, 167 deletions
diff --git a/3rdparty/asio/include/asio/impl/read_at.hpp b/3rdparty/asio/include/asio/impl/read_at.hpp
index 273312f139f..7d37c4ddfa4 100644
--- a/3rdparty/asio/include/asio/impl/read_at.hpp
+++ b/3rdparty/asio/include/asio/impl/read_at.hpp
@@ -2,7 +2,7 @@
// impl/read_at.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)
@@ -16,11 +16,11 @@
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <algorithm>
-#include "asio/associated_allocator.hpp"
-#include "asio/associated_executor.hpp"
+#include "asio/associator.hpp"
#include "asio/buffer.hpp"
#include "asio/completion_condition.hpp"
#include "asio/detail/array_fwd.hpp"
+#include "asio/detail/base_from_cancellation_state.hpp"
#include "asio/detail/base_from_completion_cond.hpp"
#include "asio/detail/bind_handler.hpp"
#include "asio/detail/consuming_buffers.hpp"
@@ -28,7 +28,9 @@
#include "asio/detail/handler_alloc_helpers.hpp"
#include "asio/detail/handler_cont_helpers.hpp"
#include "asio/detail/handler_invoke_helpers.hpp"
+#include "asio/detail/handler_tracking.hpp"
#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/non_const_lvalue.hpp"
#include "asio/detail/throw_error.hpp"
#include "asio/error.hpp"
@@ -59,7 +61,7 @@ namespace detail
else
break;
}
- return tmp.total_consumed();;
+ return tmp.total_consumed();
}
} // namespace detail
@@ -70,7 +72,8 @@ std::size_t read_at(SyncRandomAccessReadDevice& d,
CompletionCondition completion_condition, asio::error_code& ec)
{
return detail::read_at_buffer_sequence(d, offset, buffers,
- asio::buffer_sequence_begin(buffers), completion_condition, ec);
+ asio::buffer_sequence_begin(buffers),
+ ASIO_MOVE_CAST(CompletionCondition)(completion_condition), ec);
}
template <typename SyncRandomAccessReadDevice, typename MutableBufferSequence>
@@ -99,8 +102,8 @@ inline std::size_t read_at(SyncRandomAccessReadDevice& d,
CompletionCondition completion_condition)
{
asio::error_code ec;
- std::size_t bytes_transferred = read_at(
- d, offset, buffers, completion_condition, ec);
+ std::size_t bytes_transferred = read_at(d, offset, buffers,
+ ASIO_MOVE_CAST(CompletionCondition)(completion_condition), ec);
asio::detail::throw_error(ec, "read_at");
return bytes_transferred;
}
@@ -158,8 +161,8 @@ inline std::size_t read_at(SyncRandomAccessReadDevice& d,
CompletionCondition completion_condition)
{
asio::error_code ec;
- std::size_t bytes_transferred = read_at(
- d, offset, b, completion_condition, ec);
+ std::size_t bytes_transferred = read_at(d, offset, b,
+ ASIO_MOVE_CAST(CompletionCondition)(completion_condition), ec);
asio::detail::throw_error(ec, "read_at");
return bytes_transferred;
}
@@ -173,14 +176,16 @@ namespace detail
typename MutableBufferSequence, typename MutableBufferIterator,
typename CompletionCondition, typename ReadHandler>
class read_at_op
- : detail::base_from_completion_cond<CompletionCondition>
+ : public base_from_cancellation_state<ReadHandler>,
+ base_from_completion_cond<CompletionCondition>
{
public:
read_at_op(AsyncRandomAccessReadDevice& device,
uint64_t offset, const MutableBufferSequence& buffers,
- CompletionCondition completion_condition, ReadHandler& handler)
- : detail::base_from_completion_cond<
- CompletionCondition>(completion_condition),
+ CompletionCondition& completion_condition, ReadHandler& handler)
+ : base_from_cancellation_state<ReadHandler>(
+ handler, enable_partial_cancellation()),
+ base_from_completion_cond<CompletionCondition>(completion_condition),
device_(device),
offset_(offset),
buffers_(buffers),
@@ -191,7 +196,8 @@ namespace detail
#if defined(ASIO_HAS_MOVE)
read_at_op(const read_at_op& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
+ : base_from_cancellation_state<ReadHandler>(other),
+ base_from_completion_cond<CompletionCondition>(other),
device_(other.device_),
offset_(other.offset_),
buffers_(other.buffers_),
@@ -201,17 +207,22 @@ namespace detail
}
read_at_op(read_at_op&& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
+ : base_from_cancellation_state<ReadHandler>(
+ ASIO_MOVE_CAST(base_from_cancellation_state<
+ ReadHandler>)(other)),
+ base_from_completion_cond<CompletionCondition>(
+ ASIO_MOVE_CAST(base_from_completion_cond<
+ CompletionCondition>)(other)),
device_(other.device_),
offset_(other.offset_),
- buffers_(other.buffers_),
+ buffers_(ASIO_MOVE_CAST(buffers_type)(other.buffers_)),
start_(other.start_),
handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_))
{
}
#endif // defined(ASIO_HAS_MOVE)
- void operator()(const asio::error_code& ec,
+ void operator()(asio::error_code ec,
std::size_t bytes_transferred, int start = 0)
{
std::size_t max_size;
@@ -219,27 +230,41 @@ namespace detail
{
case 1:
max_size = this->check_for_completion(ec, buffers_.total_consumed());
- do
+ for (;;)
{
- device_.async_read_some_at(
- offset_ + buffers_.total_consumed(), buffers_.prepare(max_size),
- ASIO_MOVE_CAST(read_at_op)(*this));
+ {
+ ASIO_HANDLER_LOCATION((__FILE__, __LINE__, "async_read_at"));
+ device_.async_read_some_at(
+ offset_ + buffers_.total_consumed(), buffers_.prepare(max_size),
+ ASIO_MOVE_CAST(read_at_op)(*this));
+ }
return; default:
buffers_.consume(bytes_transferred);
if ((!ec && bytes_transferred == 0) || buffers_.empty())
break;
max_size = this->check_for_completion(ec, buffers_.total_consumed());
- } while (max_size > 0);
+ if (max_size == 0)
+ break;
+ if (this->cancelled() != cancellation_type::none)
+ {
+ ec = asio::error::operation_aborted;
+ break;
+ }
+ }
- handler_(ec, buffers_.total_consumed());
+ ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)(
+ static_cast<const asio::error_code&>(ec),
+ static_cast<const std::size_t&>(buffers_.total_consumed()));
}
}
//private:
+ typedef asio::detail::consuming_buffers<mutable_buffer,
+ MutableBufferSequence, MutableBufferIterator> buffers_type;
+
AsyncRandomAccessReadDevice& device_;
uint64_t offset_;
- asio::detail::consuming_buffers<mutable_buffer,
- MutableBufferSequence, MutableBufferIterator> buffers_;
+ buffers_type buffers_;
int start_;
ReadHandler handler_;
};
@@ -247,23 +272,33 @@ namespace detail
template <typename AsyncRandomAccessReadDevice,
typename MutableBufferSequence, typename MutableBufferIterator,
typename CompletionCondition, typename ReadHandler>
- inline void* asio_handler_allocate(std::size_t size,
+ inline asio_handler_allocate_is_deprecated
+ asio_handler_allocate(std::size_t size,
read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler)
{
+#if defined(ASIO_NO_DEPRECATED)
+ asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
+ return asio_handler_allocate_is_no_longer_used();
+#else // defined(ASIO_NO_DEPRECATED)
return asio_handler_alloc_helpers::allocate(
size, this_handler->handler_);
+#endif // defined(ASIO_NO_DEPRECATED)
}
template <typename AsyncRandomAccessReadDevice,
typename MutableBufferSequence, typename MutableBufferIterator,
typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_deallocate(void* pointer, std::size_t size,
+ inline asio_handler_deallocate_is_deprecated
+ asio_handler_deallocate(void* pointer, std::size_t size,
read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler)
{
asio_handler_alloc_helpers::deallocate(
pointer, size, this_handler->handler_);
+#if defined(ASIO_NO_DEPRECATED)
+ return asio_handler_deallocate_is_no_longer_used();
+#endif // defined(ASIO_NO_DEPRECATED)
}
template <typename AsyncRandomAccessReadDevice,
@@ -281,23 +316,31 @@ namespace detail
template <typename Function, typename AsyncRandomAccessReadDevice,
typename MutableBufferSequence, typename MutableBufferIterator,
typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_invoke(Function& function,
+ inline asio_handler_invoke_is_deprecated
+ asio_handler_invoke(Function& function,
read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler)
{
asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
+#if defined(ASIO_NO_DEPRECATED)
+ return asio_handler_invoke_is_no_longer_used();
+#endif // defined(ASIO_NO_DEPRECATED)
}
template <typename Function, typename AsyncRandomAccessReadDevice,
typename MutableBufferSequence, typename MutableBufferIterator,
typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_invoke(const Function& function,
+ inline asio_handler_invoke_is_deprecated
+ asio_handler_invoke(const Function& function,
read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler)
{
asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
+#if defined(ASIO_NO_DEPRECATED)
+ return asio_handler_invoke_is_no_longer_used();
+#endif // defined(ASIO_NO_DEPRECATED)
}
template <typename AsyncRandomAccessReadDevice,
@@ -305,7 +348,7 @@ namespace detail
typename CompletionCondition, typename ReadHandler>
inline void start_read_at_buffer_sequence_op(AsyncRandomAccessReadDevice& d,
uint64_t offset, const MutableBufferSequence& buffers,
- const MutableBufferIterator&, CompletionCondition completion_condition,
+ const MutableBufferIterator&, CompletionCondition& completion_condition,
ReadHandler& handler)
{
detail::read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
@@ -313,95 +356,103 @@ namespace detail
d, offset, buffers, completion_condition, handler)(
asio::error_code(), 0, 1);
}
-} // namespace detail
-#if !defined(GENERATING_DOCUMENTATION)
+ template <typename AsyncRandomAccessReadDevice>
+ class initiate_async_read_at_buffer_sequence
+ {
+ public:
+ typedef typename AsyncRandomAccessReadDevice::executor_type executor_type;
-template <typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler, typename Allocator>
-struct associated_allocator<
- detail::read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>,
- Allocator>
-{
- typedef typename associated_allocator<ReadHandler, Allocator>::type type;
+ explicit initiate_async_read_at_buffer_sequence(
+ AsyncRandomAccessReadDevice& device)
+ : device_(device)
+ {
+ }
- static type get(
- const detail::read_at_op<AsyncRandomAccessReadDevice,
- MutableBufferSequence, MutableBufferIterator,
- CompletionCondition, ReadHandler>& h,
- const Allocator& a = Allocator()) ASIO_NOEXCEPT
- {
- return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a);
- }
-};
+ executor_type get_executor() const ASIO_NOEXCEPT
+ {
+ return device_.get_executor();
+ }
-template <typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler, typename Executor>
-struct associated_executor<
+ template <typename ReadHandler, typename MutableBufferSequence,
+ typename CompletionCondition>
+ void operator()(ASIO_MOVE_ARG(ReadHandler) handler,
+ uint64_t offset, const MutableBufferSequence& buffers,
+ ASIO_MOVE_ARG(CompletionCondition) completion_cond) const
+ {
+ // If you get an error on the following line it means that your handler
+ // does not meet the documented type requirements for a ReadHandler.
+ ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
+
+ non_const_lvalue<ReadHandler> handler2(handler);
+ non_const_lvalue<CompletionCondition> completion_cond2(completion_cond);
+ start_read_at_buffer_sequence_op(device_, offset, buffers,
+ asio::buffer_sequence_begin(buffers),
+ completion_cond2.value, handler2.value);
+ }
+
+ private:
+ AsyncRandomAccessReadDevice& device_;
+ };
+} // namespace detail
+
+#if !defined(GENERATING_DOCUMENTATION)
+
+template <template <typename, typename> class Associator,
+ typename AsyncRandomAccessReadDevice, typename MutableBufferSequence,
+ typename MutableBufferIterator, typename CompletionCondition,
+ typename ReadHandler, typename DefaultCandidate>
+struct associator<Associator,
detail::read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>,
- Executor>
+ MutableBufferIterator, CompletionCondition, ReadHandler>,
+ DefaultCandidate>
+ : Associator<ReadHandler, DefaultCandidate>
{
- typedef typename associated_executor<ReadHandler, Executor>::type type;
-
- static type get(
+ static typename Associator<ReadHandler, DefaultCandidate>::type get(
const detail::read_at_op<AsyncRandomAccessReadDevice,
- MutableBufferSequence, MutableBufferIterator,
- CompletionCondition, ReadHandler>& h,
- const Executor& ex = Executor()) ASIO_NOEXCEPT
+ MutableBufferSequence, MutableBufferIterator,
+ CompletionCondition, ReadHandler>& h,
+ const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
{
- return associated_executor<ReadHandler, Executor>::get(h.handler_, ex);
+ return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c);
}
};
#endif // !defined(GENERATING_DOCUMENTATION)
-template <typename AsyncRandomAccessReadDevice, typename MutableBufferSequence,
- typename CompletionCondition, typename ReadHandler>
-inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
+template <typename AsyncRandomAccessReadDevice,
+ typename MutableBufferSequence, typename CompletionCondition,
+ ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code,
+ std::size_t)) ReadHandler>
+inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler,
void (asio::error_code, std::size_t))
async_read_at(AsyncRandomAccessReadDevice& d,
uint64_t offset, const MutableBufferSequence& buffers,
CompletionCondition completion_condition,
ASIO_MOVE_ARG(ReadHandler) handler)
{
- // If you get an error on the following line it means that your handler does
- // not meet the documented type requirements for a ReadHandler.
- ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::start_read_at_buffer_sequence_op(d, offset, buffers,
- asio::buffer_sequence_begin(buffers), completion_condition,
- init.completion_handler);
-
- return init.result.get();
+ return async_initiate<ReadHandler,
+ void (asio::error_code, std::size_t)>(
+ detail::initiate_async_read_at_buffer_sequence<
+ AsyncRandomAccessReadDevice>(d),
+ handler, offset, buffers,
+ ASIO_MOVE_CAST(CompletionCondition)(completion_condition));
}
template <typename AsyncRandomAccessReadDevice, typename MutableBufferSequence,
- typename ReadHandler>
-inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
+ ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code,
+ std::size_t)) ReadHandler>
+inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler,
void (asio::error_code, std::size_t))
async_read_at(AsyncRandomAccessReadDevice& d,
uint64_t offset, const MutableBufferSequence& buffers,
ASIO_MOVE_ARG(ReadHandler) handler)
{
- // If you get an error on the following line it means that your handler does
- // not meet the documented type requirements for a ReadHandler.
- ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::start_read_at_buffer_sequence_op(d, offset, buffers,
- asio::buffer_sequence_begin(buffers), transfer_all(),
- init.completion_handler);
-
- return init.result.get();
+ return async_initiate<ReadHandler,
+ void (asio::error_code, std::size_t)>(
+ detail::initiate_async_read_at_buffer_sequence<
+ AsyncRandomAccessReadDevice>(d),
+ handler, offset, buffers, transfer_all());
}
#if !defined(ASIO_NO_EXTENSIONS)
@@ -412,14 +463,16 @@ namespace detail
template <typename AsyncRandomAccessReadDevice, typename Allocator,
typename CompletionCondition, typename ReadHandler>
class read_at_streambuf_op
- : detail::base_from_completion_cond<CompletionCondition>
+ : public base_from_cancellation_state<ReadHandler>,
+ base_from_completion_cond<CompletionCondition>
{
public:
read_at_streambuf_op(AsyncRandomAccessReadDevice& device,
uint64_t offset, basic_streambuf<Allocator>& streambuf,
- CompletionCondition completion_condition, ReadHandler& handler)
- : detail::base_from_completion_cond<
- CompletionCondition>(completion_condition),
+ CompletionCondition& completion_condition, ReadHandler& handler)
+ : base_from_cancellation_state<ReadHandler>(
+ handler, enable_partial_cancellation()),
+ base_from_completion_cond<CompletionCondition>(completion_condition),
device_(device),
offset_(offset),
streambuf_(streambuf),
@@ -431,7 +484,8 @@ namespace detail
#if defined(ASIO_HAS_MOVE)
read_at_streambuf_op(const read_at_streambuf_op& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
+ : base_from_cancellation_state<ReadHandler>(other),
+ base_from_completion_cond<CompletionCondition>(other),
device_(other.device_),
offset_(other.offset_),
streambuf_(other.streambuf_),
@@ -442,7 +496,12 @@ namespace detail
}
read_at_streambuf_op(read_at_streambuf_op&& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
+ : base_from_cancellation_state<ReadHandler>(
+ ASIO_MOVE_CAST(base_from_cancellation_state<
+ ReadHandler>)(other)),
+ base_from_completion_cond<CompletionCondition>(
+ ASIO_MOVE_CAST(base_from_completion_cond<
+ CompletionCondition>)(other)),
device_(other.device_),
offset_(other.offset_),
streambuf_(other.streambuf_),
@@ -453,7 +512,7 @@ namespace detail
}
#endif // defined(ASIO_HAS_MOVE)
- void operator()(const asio::error_code& ec,
+ void operator()(asio::error_code ec,
std::size_t bytes_transferred, int start = 0)
{
std::size_t max_size, bytes_available;
@@ -464,9 +523,12 @@ namespace detail
bytes_available = read_size_helper(streambuf_, max_size);
for (;;)
{
- device_.async_read_some_at(offset_ + total_transferred_,
- streambuf_.prepare(bytes_available),
- ASIO_MOVE_CAST(read_at_streambuf_op)(*this));
+ {
+ ASIO_HANDLER_LOCATION((__FILE__, __LINE__, "async_read_at"));
+ device_.async_read_some_at(offset_ + total_transferred_,
+ streambuf_.prepare(bytes_available),
+ ASIO_MOVE_CAST(read_at_streambuf_op)(*this));
+ }
return; default:
total_transferred_ += bytes_transferred;
streambuf_.commit(bytes_transferred);
@@ -474,9 +536,16 @@ namespace detail
bytes_available = read_size_helper(streambuf_, max_size);
if ((!ec && bytes_transferred == 0) || bytes_available == 0)
break;
+ if (this->cancelled() != cancellation_type::none)
+ {
+ ec = asio::error::operation_aborted;
+ break;
+ }
}
- handler_(ec, static_cast<const std::size_t&>(total_transferred_));
+ ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)(
+ static_cast<const asio::error_code&>(ec),
+ static_cast<const std::size_t&>(total_transferred_));
}
}
@@ -491,22 +560,32 @@ namespace detail
template <typename AsyncRandomAccessReadDevice, typename Allocator,
typename CompletionCondition, typename ReadHandler>
- inline void* asio_handler_allocate(std::size_t size,
+ inline asio_handler_allocate_is_deprecated
+ asio_handler_allocate(std::size_t size,
read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
CompletionCondition, ReadHandler>* this_handler)
{
+#if defined(ASIO_NO_DEPRECATED)
+ asio_handler_alloc_helpers::allocate(size, this_handler->handler_);
+ return asio_handler_allocate_is_no_longer_used();
+#else // defined(ASIO_NO_DEPRECATED)
return asio_handler_alloc_helpers::allocate(
size, this_handler->handler_);
+#endif // defined(ASIO_NO_DEPRECATED)
}
template <typename AsyncRandomAccessReadDevice, typename Allocator,
typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_deallocate(void* pointer, std::size_t size,
+ inline asio_handler_deallocate_is_deprecated
+ asio_handler_deallocate(void* pointer, std::size_t size,
read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
CompletionCondition, ReadHandler>* this_handler)
{
asio_handler_alloc_helpers::deallocate(
pointer, size, this_handler->handler_);
+#if defined(ASIO_NO_DEPRECATED)
+ return asio_handler_deallocate_is_no_longer_used();
+#endif // defined(ASIO_NO_DEPRECATED)
}
template <typename AsyncRandomAccessReadDevice, typename Allocator,
@@ -522,112 +601,126 @@ namespace detail
template <typename Function, typename AsyncRandomAccessReadDevice,
typename Allocator, typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_invoke(Function& function,
+ inline asio_handler_invoke_is_deprecated
+ asio_handler_invoke(Function& function,
read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
CompletionCondition, ReadHandler>* this_handler)
{
asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
+#if defined(ASIO_NO_DEPRECATED)
+ return asio_handler_invoke_is_no_longer_used();
+#endif // defined(ASIO_NO_DEPRECATED)
}
template <typename Function, typename AsyncRandomAccessReadDevice,
typename Allocator, typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_invoke(const Function& function,
+ inline asio_handler_invoke_is_deprecated
+ asio_handler_invoke(const Function& function,
read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
CompletionCondition, ReadHandler>* this_handler)
{
asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
+#if defined(ASIO_NO_DEPRECATED)
+ return asio_handler_invoke_is_no_longer_used();
+#endif // defined(ASIO_NO_DEPRECATED)
}
-} // namespace detail
-#if !defined(GENERATING_DOCUMENTATION)
+ template <typename AsyncRandomAccessReadDevice>
+ class initiate_async_read_at_streambuf
+ {
+ public:
+ typedef typename AsyncRandomAccessReadDevice::executor_type executor_type;
-template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition, typename ReadHandler, typename Allocator1>
-struct associated_allocator<
- detail::read_at_streambuf_op<AsyncRandomAccessReadDevice,
- Allocator, CompletionCondition, ReadHandler>,
- Allocator1>
-{
- typedef typename associated_allocator<ReadHandler, Allocator1>::type type;
+ explicit initiate_async_read_at_streambuf(
+ AsyncRandomAccessReadDevice& device)
+ : device_(device)
+ {
+ }
- static type get(
- const detail::read_at_streambuf_op<AsyncRandomAccessReadDevice,
- Allocator, CompletionCondition, ReadHandler>& h,
- const Allocator1& a = Allocator1()) ASIO_NOEXCEPT
- {
- return associated_allocator<ReadHandler, Allocator1>::get(h.handler_, a);
- }
-};
+ executor_type get_executor() const ASIO_NOEXCEPT
+ {
+ return device_.get_executor();
+ }
+
+ template <typename ReadHandler,
+ typename Allocator, typename CompletionCondition>
+ void operator()(ASIO_MOVE_ARG(ReadHandler) handler,
+ uint64_t offset, basic_streambuf<Allocator>* b,
+ ASIO_MOVE_ARG(CompletionCondition) completion_cond) const
+ {
+ // If you get an error on the following line it means that your handler
+ // does not meet the documented type requirements for a ReadHandler.
+ ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-template <typename AsyncRandomAccessReadDevice, typename Executor,
- typename CompletionCondition, typename ReadHandler, typename Executor1>
-struct associated_executor<
+ non_const_lvalue<ReadHandler> handler2(handler);
+ non_const_lvalue<CompletionCondition> completion_cond2(completion_cond);
+ read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
+ CompletionCondition, typename decay<ReadHandler>::type>(
+ device_, offset, *b, completion_cond2.value, handler2.value)(
+ asio::error_code(), 0, 1);
+ }
+
+ private:
+ AsyncRandomAccessReadDevice& device_;
+ };
+} // namespace detail
+
+#if !defined(GENERATING_DOCUMENTATION)
+
+template <template <typename, typename> class Associator,
+ typename AsyncRandomAccessReadDevice, typename Executor,
+ typename CompletionCondition, typename ReadHandler,
+ typename DefaultCandidate>
+struct associator<Associator,
detail::read_at_streambuf_op<AsyncRandomAccessReadDevice,
Executor, CompletionCondition, ReadHandler>,
- Executor1>
+ DefaultCandidate>
+ : Associator<ReadHandler, DefaultCandidate>
{
- typedef typename associated_executor<ReadHandler, Executor1>::type type;
-
- static type get(
+ static typename Associator<ReadHandler, DefaultCandidate>::type get(
const detail::read_at_streambuf_op<AsyncRandomAccessReadDevice,
Executor, CompletionCondition, ReadHandler>& h,
- const Executor1& ex = Executor1()) ASIO_NOEXCEPT
+ const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT
{
- return associated_executor<ReadHandler, Executor1>::get(h.handler_, ex);
+ return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c);
}
};
#endif // !defined(GENERATING_DOCUMENTATION)
-template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition, typename ReadHandler>
-inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
+template <typename AsyncRandomAccessReadDevice,
+ typename Allocator, typename CompletionCondition,
+ ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code,
+ std::size_t)) ReadHandler>
+inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler,
void (asio::error_code, std::size_t))
async_read_at(AsyncRandomAccessReadDevice& d,
uint64_t offset, asio::basic_streambuf<Allocator>& b,
CompletionCondition completion_condition,
ASIO_MOVE_ARG(ReadHandler) handler)
{
- // If you get an error on the following line it means that your handler does
- // not meet the documented type requirements for a ReadHandler.
- ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
- CompletionCondition, ASIO_HANDLER_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))>(
- d, offset, b, completion_condition, init.completion_handler)(
- asio::error_code(), 0, 1);
-
- return init.result.get();
+ return async_initiate<ReadHandler,
+ void (asio::error_code, std::size_t)>(
+ detail::initiate_async_read_at_streambuf<AsyncRandomAccessReadDevice>(d),
+ handler, offset, &b,
+ ASIO_MOVE_CAST(CompletionCondition)(completion_condition));
}
template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename ReadHandler>
-inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
+ ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code,
+ std::size_t)) ReadHandler>
+inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler,
void (asio::error_code, std::size_t))
async_read_at(AsyncRandomAccessReadDevice& d,
uint64_t offset, asio::basic_streambuf<Allocator>& b,
ASIO_MOVE_ARG(ReadHandler) handler)
{
- // If you get an error on the following line it means that your handler does
- // not meet the documented type requirements for a ReadHandler.
- ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
- detail::transfer_all_t, ASIO_HANDLER_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))>(
- d, offset, b, transfer_all(), init.completion_handler)(
- asio::error_code(), 0, 1);
-
- return init.result.get();
+ return async_initiate<ReadHandler,
+ void (asio::error_code, std::size_t)>(
+ detail::initiate_async_read_at_streambuf<AsyncRandomAccessReadDevice>(d),
+ handler, offset, &b, transfer_all());
}
#endif // !defined(ASIO_NO_IOSTREAM)