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Diffstat (limited to 'lib/asio/detail/win_iocp_handle_service.hpp')
| -rw-r--r-- | lib/asio/detail/win_iocp_handle_service.hpp | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/lib/asio/detail/win_iocp_handle_service.hpp b/lib/asio/detail/win_iocp_handle_service.hpp deleted file mode 100644 index 849fe8f..0000000 --- a/lib/asio/detail/win_iocp_handle_service.hpp +++ /dev/null @@ -1,323 +0,0 @@ -// -// detail/win_iocp_handle_service.hpp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com) -// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.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_HANDLE_SERVICE_HPP -#define ASIO_DETAIL_WIN_IOCP_HANDLE_SERVICE_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/error.hpp" -#include "asio/io_context.hpp" -#include "asio/detail/buffer_sequence_adapter.hpp" -#include "asio/detail/cstdint.hpp" -#include "asio/detail/handler_alloc_helpers.hpp" -#include "asio/detail/memory.hpp" -#include "asio/detail/mutex.hpp" -#include "asio/detail/operation.hpp" -#include "asio/detail/win_iocp_handle_read_op.hpp" -#include "asio/detail/win_iocp_handle_write_op.hpp" -#include "asio/detail/win_iocp_io_context.hpp" - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace detail { - -class win_iocp_handle_service : - public service_base<win_iocp_handle_service> -{ -public: - // The native type of a stream handle. - typedef HANDLE native_handle_type; - - // The implementation type of the stream handle. - class implementation_type - { - public: - // Default constructor. - implementation_type() - : handle_(INVALID_HANDLE_VALUE), - safe_cancellation_thread_id_(0), - next_(0), - prev_(0) - { - } - - private: - // Only this service will have access to the internal values. - friend class win_iocp_handle_service; - - // The native stream handle representation. - native_handle_type handle_; - - // The ID of the thread from which it is safe to cancel asynchronous - // operations. 0 means no asynchronous operations have been started yet. - // ~0 means asynchronous operations have been started from more than one - // thread, and cancellation is not supported for the handle. - DWORD safe_cancellation_thread_id_; - - // Pointers to adjacent handle implementations in linked list. - implementation_type* next_; - implementation_type* prev_; - }; - - ASIO_DECL win_iocp_handle_service(asio::io_context& io_context); - - // Destroy all user-defined handler objects owned by the service. - ASIO_DECL void shutdown(); - - // Construct a new handle implementation. - ASIO_DECL void construct(implementation_type& impl); - - // Move-construct a new handle implementation. - ASIO_DECL void move_construct(implementation_type& impl, - implementation_type& other_impl); - - // Move-assign from another handle implementation. - ASIO_DECL void move_assign(implementation_type& impl, - win_iocp_handle_service& other_service, - implementation_type& other_impl); - - // Destroy a handle implementation. - ASIO_DECL void destroy(implementation_type& impl); - - // Assign a native handle to a handle implementation. - ASIO_DECL asio::error_code assign(implementation_type& impl, - const native_handle_type& handle, asio::error_code& ec); - - // Determine whether the handle is open. - bool is_open(const implementation_type& impl) const - { - return impl.handle_ != INVALID_HANDLE_VALUE; - } - - // Destroy a handle implementation. - ASIO_DECL asio::error_code close(implementation_type& impl, - asio::error_code& ec); - - // Get the native handle representation. - native_handle_type native_handle(const implementation_type& impl) const - { - return impl.handle_; - } - - // Cancel all operations associated with the handle. - ASIO_DECL asio::error_code cancel(implementation_type& impl, - asio::error_code& ec); - - // Write the given data. Returns the number of bytes written. - template <typename ConstBufferSequence> - size_t write_some(implementation_type& impl, - const ConstBufferSequence& buffers, asio::error_code& ec) - { - return write_some_at(impl, 0, buffers, ec); - } - - // Write the given data at the specified offset. Returns the number of bytes - // written. - template <typename ConstBufferSequence> - size_t write_some_at(implementation_type& impl, uint64_t offset, - const ConstBufferSequence& buffers, asio::error_code& ec) - { - asio::const_buffer buffer = - buffer_sequence_adapter<asio::const_buffer, - ConstBufferSequence>::first(buffers); - - return do_write(impl, offset, buffer, ec); - } - - // Start an asynchronous write. The data being written must be valid for the - // lifetime of the asynchronous operation. - template <typename ConstBufferSequence, typename Handler> - void async_write_some(implementation_type& impl, - const ConstBufferSequence& buffers, Handler& handler) - { - // Allocate and construct an operation to wrap the handler. - typedef win_iocp_handle_write_op<ConstBufferSequence, Handler> op; - typename op::ptr p = { asio::detail::addressof(handler), - op::ptr::allocate(handler), 0 }; - p.p = new (p.v) op(buffers, handler); - - ASIO_HANDLER_CREATION((iocp_service_.context(), *p.p, "handle", &impl, - reinterpret_cast<uintmax_t>(impl.handle_), "async_write_some")); - - start_write_op(impl, 0, - buffer_sequence_adapter<asio::const_buffer, - ConstBufferSequence>::first(buffers), p.p); - p.v = p.p = 0; - } - - // Start an asynchronous write at a specified offset. The data being written - // must be valid for the lifetime of the asynchronous operation. - template <typename ConstBufferSequence, typename Handler> - void async_write_some_at(implementation_type& impl, uint64_t offset, - const ConstBufferSequence& buffers, Handler& handler) - { - // Allocate and construct an operation to wrap the handler. - typedef win_iocp_handle_write_op<ConstBufferSequence, Handler> op; - typename op::ptr p = { asio::detail::addressof(handler), - op::ptr::allocate(handler), 0 }; - p.p = new (p.v) op(buffers, handler); - - ASIO_HANDLER_CREATION((iocp_service_.context(), *p.p, "handle", &impl, - reinterpret_cast<uintmax_t>(impl.handle_), "async_write_some_at")); - - start_write_op(impl, offset, - buffer_sequence_adapter<asio::const_buffer, - ConstBufferSequence>::first(buffers), p.p); - p.v = p.p = 0; - } - - // Read some data. Returns the number of bytes received. - template <typename MutableBufferSequence> - size_t read_some(implementation_type& impl, - const MutableBufferSequence& buffers, asio::error_code& ec) - { - return read_some_at(impl, 0, buffers, ec); - } - - // Read some data at a specified offset. Returns the number of bytes received. - template <typename MutableBufferSequence> - size_t read_some_at(implementation_type& impl, uint64_t offset, - const MutableBufferSequence& buffers, asio::error_code& ec) - { - asio::mutable_buffer buffer = - buffer_sequence_adapter<asio::mutable_buffer, - MutableBufferSequence>::first(buffers); - - return do_read(impl, offset, buffer, ec); - } - - // Start an asynchronous read. The buffer for the data being received must be - // valid for the lifetime of the asynchronous operation. - template <typename MutableBufferSequence, typename Handler> - void async_read_some(implementation_type& impl, - const MutableBufferSequence& buffers, Handler& handler) - { - // Allocate and construct an operation to wrap the handler. - typedef win_iocp_handle_read_op<MutableBufferSequence, Handler> op; - typename op::ptr p = { asio::detail::addressof(handler), - op::ptr::allocate(handler), 0 }; - p.p = new (p.v) op(buffers, handler); - - ASIO_HANDLER_CREATION((iocp_service_.context(), *p.p, "handle", &impl, - reinterpret_cast<uintmax_t>(impl.handle_), "async_read_some")); - - start_read_op(impl, 0, - buffer_sequence_adapter<asio::mutable_buffer, - MutableBufferSequence>::first(buffers), p.p); - p.v = p.p = 0; - } - - // Start an asynchronous read at a specified offset. The buffer for the data - // being received must be valid for the lifetime of the asynchronous - // operation. - template <typename MutableBufferSequence, typename Handler> - void async_read_some_at(implementation_type& impl, uint64_t offset, - const MutableBufferSequence& buffers, Handler& handler) - { - // Allocate and construct an operation to wrap the handler. - typedef win_iocp_handle_read_op<MutableBufferSequence, Handler> op; - typename op::ptr p = { asio::detail::addressof(handler), - op::ptr::allocate(handler), 0 }; - p.p = new (p.v) op(buffers, handler); - - ASIO_HANDLER_CREATION((iocp_service_.context(), *p.p, "handle", &impl, - reinterpret_cast<uintmax_t>(impl.handle_), "async_read_some_at")); - - start_read_op(impl, offset, - buffer_sequence_adapter<asio::mutable_buffer, - MutableBufferSequence>::first(buffers), p.p); - p.v = p.p = 0; - } - -private: - // Prevent the use of the null_buffers type with this service. - size_t write_some(implementation_type& impl, - const null_buffers& buffers, asio::error_code& ec); - size_t write_some_at(implementation_type& impl, uint64_t offset, - const null_buffers& buffers, asio::error_code& ec); - template <typename Handler> - void async_write_some(implementation_type& impl, - const null_buffers& buffers, Handler& handler); - template <typename Handler> - void async_write_some_at(implementation_type& impl, uint64_t offset, - const null_buffers& buffers, Handler& handler); - size_t read_some(implementation_type& impl, - const null_buffers& buffers, asio::error_code& ec); - size_t read_some_at(implementation_type& impl, uint64_t offset, - const null_buffers& buffers, asio::error_code& ec); - template <typename Handler> - void async_read_some(implementation_type& impl, - const null_buffers& buffers, Handler& handler); - template <typename Handler> - void async_read_some_at(implementation_type& impl, uint64_t offset, - const null_buffers& buffers, Handler& handler); - - // Helper class for waiting for synchronous operations to complete. - class overlapped_wrapper; - - // Helper function to perform a synchronous write operation. - ASIO_DECL size_t do_write(implementation_type& impl, - uint64_t offset, const asio::const_buffer& buffer, - asio::error_code& ec); - - // Helper function to start a write operation. - ASIO_DECL void start_write_op(implementation_type& impl, - uint64_t offset, const asio::const_buffer& buffer, - operation* op); - - // Helper function to perform a synchronous write operation. - ASIO_DECL size_t do_read(implementation_type& impl, - uint64_t offset, const asio::mutable_buffer& buffer, - asio::error_code& ec); - - // Helper function to start a read operation. - ASIO_DECL void start_read_op(implementation_type& impl, - uint64_t offset, const asio::mutable_buffer& buffer, - operation* op); - - // Update the ID of the thread from which cancellation is safe. - ASIO_DECL void update_cancellation_thread_id(implementation_type& impl); - - // Helper function to close a handle when the associated object is being - // destroyed. - ASIO_DECL void close_for_destruction(implementation_type& impl); - - // The IOCP service used for running asynchronous operations and dispatching - // handlers. - win_iocp_io_context& iocp_service_; - - // Mutex to protect access to the linked list of implementations. - mutex mutex_; - - // The head of a linked list of all implementations. - implementation_type* impl_list_; -}; - -} // namespace detail -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#if defined(ASIO_HEADER_ONLY) -# include "asio/detail/impl/win_iocp_handle_service.ipp" -#endif // defined(ASIO_HEADER_ONLY) - -#endif // defined(ASIO_HAS_IOCP) - -#endif // ASIO_DETAIL_WIN_IOCP_HANDLE_SERVICE_HPP |