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Initial preparations for CURL and Discord integration.

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Sandu Liviu Catalin
2021-01-27 07:27:48 +02:00
parent 8257eb61d6
commit 95705e87c8
1751 changed files with 440547 additions and 854 deletions
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module/Vendor/ASIO/include/asio/posix/basic_descriptor.hpp vendored Normal file
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//
// posix/basic_descriptor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// 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)
//
#ifndef ASIO_POSIX_BASIC_DESCRIPTOR_HPP
#define ASIO_POSIX_BASIC_DESCRIPTOR_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_POSIX_STREAM_DESCRIPTOR) \
|| defined(GENERATING_DOCUMENTATION)
#include "asio/any_io_executor.hpp"
#include "asio/async_result.hpp"
#include "asio/detail/handler_type_requirements.hpp"
#include "asio/detail/io_object_impl.hpp"
#include "asio/detail/non_const_lvalue.hpp"
#include "asio/detail/reactive_descriptor_service.hpp"
#include "asio/detail/throw_error.hpp"
#include "asio/error.hpp"
#include "asio/execution_context.hpp"
#include "asio/posix/descriptor_base.hpp"
#if defined(ASIO_HAS_MOVE)
# include <utility>
#endif // defined(ASIO_HAS_MOVE)
#include "asio/detail/push_options.hpp"
namespace asio {
namespace posix {
/// Provides POSIX descriptor functionality.
/**
* The posix::basic_descriptor class template provides the ability to wrap a
* POSIX descriptor.
*
* @par Thread Safety
* @e Distinct @e objects: Safe.@n
* @e Shared @e objects: Unsafe.
*/
template <typename Executor = any_io_executor>
class basic_descriptor
: public descriptor_base
{
public:
/// The type of the executor associated with the object.
typedef Executor executor_type;
/// Rebinds the descriptor type to another executor.
template <typename Executor1>
struct rebind_executor
{
/// The descriptor type when rebound to the specified executor.
typedef basic_descriptor<Executor1> other;
};
/// The native representation of a descriptor.
#if defined(GENERATING_DOCUMENTATION)
typedef implementation_defined native_handle_type;
#else
typedef detail::reactive_descriptor_service::native_handle_type
native_handle_type;
#endif
/// A descriptor is always the lowest layer.
typedef basic_descriptor lowest_layer_type;
/// Construct a descriptor without opening it.
/**
* This constructor creates a descriptor without opening it.
*
* @param ex The I/O executor that the descriptor will use, by default, to
* dispatch handlers for any asynchronous operations performed on the
* descriptor.
*/
explicit basic_descriptor(const executor_type& ex)
: impl_(0, ex)
{
}
/// Construct a descriptor without opening it.
/**
* This constructor creates a descriptor without opening it.
*
* @param context An execution context which provides the I/O executor that
* the descriptor will use, by default, to dispatch handlers for any
* asynchronous operations performed on the descriptor.
*/
template <typename ExecutionContext>
explicit basic_descriptor(ExecutionContext& context,
typename enable_if<
is_convertible<ExecutionContext&, execution_context&>::value
>::type* = 0)
: impl_(0, 0, context)
{
}
/// Construct a descriptor on an existing native descriptor.
/**
* This constructor creates a descriptor object to hold an existing native
* descriptor.
*
* @param ex The I/O executor that the descriptor will use, by default, to
* dispatch handlers for any asynchronous operations performed on the
* descriptor.
*
* @param native_descriptor A native descriptor.
*
* @throws asio::system_error Thrown on failure.
*/
basic_descriptor(const executor_type& ex,
const native_handle_type& native_descriptor)
: impl_(0, ex)
{
asio::error_code ec;
impl_.get_service().assign(impl_.get_implementation(),
native_descriptor, ec);
asio::detail::throw_error(ec, "assign");
}
/// Construct a descriptor on an existing native descriptor.
/**
* This constructor creates a descriptor object to hold an existing native
* descriptor.
*
* @param context An execution context which provides the I/O executor that
* the descriptor will use, by default, to dispatch handlers for any
* asynchronous operations performed on the descriptor.
*
* @param native_descriptor A native descriptor.
*
* @throws asio::system_error Thrown on failure.
*/
template <typename ExecutionContext>
basic_descriptor(ExecutionContext& context,
const native_handle_type& native_descriptor,
typename enable_if<
is_convertible<ExecutionContext&, execution_context&>::value
>::type* = 0)
: impl_(0, 0, context)
{
asio::error_code ec;
impl_.get_service().assign(impl_.get_implementation(),
native_descriptor, ec);
asio::detail::throw_error(ec, "assign");
}
#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
/// Move-construct a descriptor from another.
/**
* This constructor moves a descriptor from one object to another.
*
* @param other The other descriptor object from which the move will
* occur.
*
* @note Following the move, the moved-from object is in the same state as if
* constructed using the @c basic_descriptor(const executor_type&)
* constructor.
*/
basic_descriptor(basic_descriptor&& other) ASIO_NOEXCEPT
: impl_(std::move(other.impl_))
{
}
/// Move-assign a descriptor from another.
/**
* This assignment operator moves a descriptor from one object to another.
*
* @param other The other descriptor object from which the move will
* occur.
*
* @note Following the move, the moved-from object is in the same state as if
* constructed using the @c basic_descriptor(const executor_type&)
* constructor.
*/
basic_descriptor& operator=(basic_descriptor&& other)
{
impl_ = std::move(other.impl_);
return *this;
}
#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
/// Get the executor associated with the object.
executor_type get_executor() ASIO_NOEXCEPT
{
return impl_.get_executor();
}
/// Get a reference to the lowest layer.
/**
* This function returns a reference to the lowest layer in a stack of
* layers. Since a descriptor cannot contain any further layers, it
* simply returns a reference to itself.
*
* @return A reference to the lowest layer in the stack of layers. Ownership
* is not transferred to the caller.
*/
lowest_layer_type& lowest_layer()
{
return *this;
}
/// Get a const reference to the lowest layer.
/**
* This function returns a const reference to the lowest layer in a stack of
* layers. Since a descriptor cannot contain any further layers, it
* simply returns a reference to itself.
*
* @return A const reference to the lowest layer in the stack of layers.
* Ownership is not transferred to the caller.
*/
const lowest_layer_type& lowest_layer() const
{
return *this;
}
/// Assign an existing native descriptor to the descriptor.
/*
* This function opens the descriptor to hold an existing native descriptor.
*
* @param native_descriptor A native descriptor.
*
* @throws asio::system_error Thrown on failure.
*/
void assign(const native_handle_type& native_descriptor)
{
asio::error_code ec;
impl_.get_service().assign(impl_.get_implementation(),
native_descriptor, ec);
asio::detail::throw_error(ec, "assign");
}
/// Assign an existing native descriptor to the descriptor.
/*
* This function opens the descriptor to hold an existing native descriptor.
*
* @param native_descriptor A native descriptor.
*
* @param ec Set to indicate what error occurred, if any.
*/
ASIO_SYNC_OP_VOID assign(const native_handle_type& native_descriptor,
asio::error_code& ec)
{
impl_.get_service().assign(
impl_.get_implementation(), native_descriptor, ec);
ASIO_SYNC_OP_VOID_RETURN(ec);
}
/// Determine whether the descriptor is open.
bool is_open() const
{
return impl_.get_service().is_open(impl_.get_implementation());
}
/// Close the descriptor.
/**
* This function is used to close the descriptor. Any asynchronous read or
* write operations will be cancelled immediately, and will complete with the
* asio::error::operation_aborted error.
*
* @throws asio::system_error Thrown on failure. Note that, even if
* the function indicates an error, the underlying descriptor is closed.
*/
void close()
{
asio::error_code ec;
impl_.get_service().close(impl_.get_implementation(), ec);
asio::detail::throw_error(ec, "close");
}
/// Close the descriptor.
/**
* This function is used to close the descriptor. Any asynchronous read or
* write operations will be cancelled immediately, and will complete with the
* asio::error::operation_aborted error.
*
* @param ec Set to indicate what error occurred, if any. Note that, even if
* the function indicates an error, the underlying descriptor is closed.
*/
ASIO_SYNC_OP_VOID close(asio::error_code& ec)
{
impl_.get_service().close(impl_.get_implementation(), ec);
ASIO_SYNC_OP_VOID_RETURN(ec);
}
/// Get the native descriptor representation.
/**
* This function may be used to obtain the underlying representation of the
* descriptor. This is intended to allow access to native descriptor
* functionality that is not otherwise provided.
*/
native_handle_type native_handle()
{
return impl_.get_service().native_handle(impl_.get_implementation());
}
/// Release ownership of the native descriptor implementation.
/**
* This function may be used to obtain the underlying representation of the
* descriptor. After calling this function, @c is_open() returns false. The
* caller is responsible for closing the descriptor.
*
* All outstanding asynchronous read or write operations will finish
* immediately, and the handlers for cancelled operations will be passed the
* asio::error::operation_aborted error.
*/
native_handle_type release()
{
return impl_.get_service().release(impl_.get_implementation());
}
/// Cancel all asynchronous operations associated with the descriptor.
/**
* This function causes all outstanding asynchronous read or write operations
* to finish immediately, and the handlers for cancelled operations will be
* passed the asio::error::operation_aborted error.
*
* @throws asio::system_error Thrown on failure.
*/
void cancel()
{
asio::error_code ec;
impl_.get_service().cancel(impl_.get_implementation(), ec);
asio::detail::throw_error(ec, "cancel");
}
/// Cancel all asynchronous operations associated with the descriptor.
/**
* This function causes all outstanding asynchronous read or write operations
* to finish immediately, and the handlers for cancelled operations will be
* passed the asio::error::operation_aborted error.
*
* @param ec Set to indicate what error occurred, if any.
*/
ASIO_SYNC_OP_VOID cancel(asio::error_code& ec)
{
impl_.get_service().cancel(impl_.get_implementation(), ec);
ASIO_SYNC_OP_VOID_RETURN(ec);
}
/// Perform an IO control command on the descriptor.
/**
* This function is used to execute an IO control command on the descriptor.
*
* @param command The IO control command to be performed on the descriptor.
*
* @throws asio::system_error Thrown on failure.
*
* @sa IoControlCommand @n
* asio::posix::descriptor_base::bytes_readable @n
* asio::posix::descriptor_base::non_blocking_io
*
* @par Example
* Getting the number of bytes ready to read:
* @code
* asio::posix::stream_descriptor descriptor(my_context);
* ...
* asio::posix::stream_descriptor::bytes_readable command;
* descriptor.io_control(command);
* std::size_t bytes_readable = command.get();
* @endcode
*/
template <typename IoControlCommand>
void io_control(IoControlCommand& command)
{
asio::error_code ec;
impl_.get_service().io_control(impl_.get_implementation(), command, ec);
asio::detail::throw_error(ec, "io_control");
}
/// Perform an IO control command on the descriptor.
/**
* This function is used to execute an IO control command on the descriptor.
*
* @param command The IO control command to be performed on the descriptor.
*
* @param ec Set to indicate what error occurred, if any.
*
* @sa IoControlCommand @n
* asio::posix::descriptor_base::bytes_readable @n
* asio::posix::descriptor_base::non_blocking_io
*
* @par Example
* Getting the number of bytes ready to read:
* @code
* asio::posix::stream_descriptor descriptor(my_context);
* ...
* asio::posix::stream_descriptor::bytes_readable command;
* asio::error_code ec;
* descriptor.io_control(command, ec);
* if (ec)
* {
* // An error occurred.
* }
* std::size_t bytes_readable = command.get();
* @endcode
*/
template <typename IoControlCommand>
ASIO_SYNC_OP_VOID io_control(IoControlCommand& command,
asio::error_code& ec)
{
impl_.get_service().io_control(impl_.get_implementation(), command, ec);
ASIO_SYNC_OP_VOID_RETURN(ec);
}
/// Gets the non-blocking mode of the descriptor.
/**
* @returns @c true if the descriptor's synchronous operations will fail with
* asio::error::would_block if they are unable to perform the requested
* operation immediately. If @c false, synchronous operations will block
* until complete.
*
* @note The non-blocking mode has no effect on the behaviour of asynchronous
* operations. Asynchronous operations will never fail with the error
* asio::error::would_block.
*/
bool non_blocking() const
{
return impl_.get_service().non_blocking(impl_.get_implementation());
}
/// Sets the non-blocking mode of the descriptor.
/**
* @param mode If @c true, the descriptor's synchronous operations will fail
* with asio::error::would_block if they are unable to perform the
* requested operation immediately. If @c false, synchronous operations will
* block until complete.
*
* @throws asio::system_error Thrown on failure.
*
* @note The non-blocking mode has no effect on the behaviour of asynchronous
* operations. Asynchronous operations will never fail with the error
* asio::error::would_block.
*/
void non_blocking(bool mode)
{
asio::error_code ec;
impl_.get_service().non_blocking(impl_.get_implementation(), mode, ec);
asio::detail::throw_error(ec, "non_blocking");
}
/// Sets the non-blocking mode of the descriptor.
/**
* @param mode If @c true, the descriptor's synchronous operations will fail
* with asio::error::would_block if they are unable to perform the
* requested operation immediately. If @c false, synchronous operations will
* block until complete.
*
* @param ec Set to indicate what error occurred, if any.
*
* @note The non-blocking mode has no effect on the behaviour of asynchronous
* operations. Asynchronous operations will never fail with the error
* asio::error::would_block.
*/
ASIO_SYNC_OP_VOID non_blocking(
bool mode, asio::error_code& ec)
{
impl_.get_service().non_blocking(impl_.get_implementation(), mode, ec);
ASIO_SYNC_OP_VOID_RETURN(ec);
}
/// Gets the non-blocking mode of the native descriptor implementation.
/**
* This function is used to retrieve the non-blocking mode of the underlying
* native descriptor. This mode has no effect on the behaviour of the
* descriptor object's synchronous operations.
*
* @returns @c true if the underlying descriptor is in non-blocking mode and
* direct system calls may fail with asio::error::would_block (or the
* equivalent system error).
*
* @note The current non-blocking mode is cached by the descriptor object.
* Consequently, the return value may be incorrect if the non-blocking mode
* was set directly on the native descriptor.
*/
bool native_non_blocking() const
{
return impl_.get_service().native_non_blocking(
impl_.get_implementation());
}
/// Sets the non-blocking mode of the native descriptor implementation.
/**
* This function is used to modify the non-blocking mode of the underlying
* native descriptor. It has no effect on the behaviour of the descriptor
* object's synchronous operations.
*
* @param mode If @c true, the underlying descriptor is put into non-blocking
* mode and direct system calls may fail with asio::error::would_block
* (or the equivalent system error).
*
* @throws asio::system_error Thrown on failure. If the @c mode is
* @c false, but the current value of @c non_blocking() is @c true, this
* function fails with asio::error::invalid_argument, as the
* combination does not make sense.
*/
void native_non_blocking(bool mode)
{
asio::error_code ec;
impl_.get_service().native_non_blocking(
impl_.get_implementation(), mode, ec);
asio::detail::throw_error(ec, "native_non_blocking");
}
/// Sets the non-blocking mode of the native descriptor implementation.
/**
* This function is used to modify the non-blocking mode of the underlying
* native descriptor. It has no effect on the behaviour of the descriptor
* object's synchronous operations.
*
* @param mode If @c true, the underlying descriptor is put into non-blocking
* mode and direct system calls may fail with asio::error::would_block
* (or the equivalent system error).
*
* @param ec Set to indicate what error occurred, if any. If the @c mode is
* @c false, but the current value of @c non_blocking() is @c true, this
* function fails with asio::error::invalid_argument, as the
* combination does not make sense.
*/
ASIO_SYNC_OP_VOID native_non_blocking(
bool mode, asio::error_code& ec)
{
impl_.get_service().native_non_blocking(
impl_.get_implementation(), mode, ec);
ASIO_SYNC_OP_VOID_RETURN(ec);
}
/// Wait for the descriptor to become ready to read, ready to write, or to
/// have pending error conditions.
/**
* This function is used to perform a blocking wait for a descriptor to enter
* a ready to read, write or error condition state.
*
* @param w Specifies the desired descriptor state.
*
* @par Example
* Waiting for a descriptor to become readable.
* @code
* asio::posix::stream_descriptor descriptor(my_context);
* ...
* descriptor.wait(asio::posix::stream_descriptor::wait_read);
* @endcode
*/
void wait(wait_type w)
{
asio::error_code ec;
impl_.get_service().wait(impl_.get_implementation(), w, ec);
asio::detail::throw_error(ec, "wait");
}
/// Wait for the descriptor to become ready to read, ready to write, or to
/// have pending error conditions.
/**
* This function is used to perform a blocking wait for a descriptor to enter
* a ready to read, write or error condition state.
*
* @param w Specifies the desired descriptor state.
*
* @param ec Set to indicate what error occurred, if any.
*
* @par Example
* Waiting for a descriptor to become readable.
* @code
* asio::posix::stream_descriptor descriptor(my_context);
* ...
* asio::error_code ec;
* descriptor.wait(asio::posix::stream_descriptor::wait_read, ec);
* @endcode
*/
ASIO_SYNC_OP_VOID wait(wait_type w, asio::error_code& ec)
{
impl_.get_service().wait(impl_.get_implementation(), w, ec);
ASIO_SYNC_OP_VOID_RETURN(ec);
}
/// Asynchronously wait for the descriptor to become ready to read, ready to
/// write, or to have pending error conditions.
/**
* This function is used to perform an asynchronous wait for a descriptor to
* enter a ready to read, write or error condition state.
*
* @param w Specifies the desired descriptor state.
*
* @param handler The handler to be called when the wait operation completes.
* Copies will be made of the handler as required. The function signature of
* the handler must be:
* @code void handler(
* const asio::error_code& error // Result of operation
* ); @endcode
* Regardless of whether the asynchronous operation completes immediately or
* not, the handler will not be invoked from within this function. On
* immediate completion, invocation of the handler will be performed in a
* manner equivalent to using asio::post().
*
* @par Example
* @code
* void wait_handler(const asio::error_code& error)
* {
* if (!error)
* {
* // Wait succeeded.
* }
* }
*
* ...
*
* asio::posix::stream_descriptor descriptor(my_context);
* ...
* descriptor.async_wait(
* asio::posix::stream_descriptor::wait_read,
* wait_handler);
* @endcode
*/
template <
ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code))
WaitHandler ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(executor_type)>
ASIO_INITFN_AUTO_RESULT_TYPE(WaitHandler,
void (asio::error_code))
async_wait(wait_type w,
ASIO_MOVE_ARG(WaitHandler) handler
ASIO_DEFAULT_COMPLETION_TOKEN(executor_type))
{
return async_initiate<WaitHandler, void (asio::error_code)>(
initiate_async_wait(this), handler, w);
}
protected:
/// Protected destructor to prevent deletion through this type.
/**
* This function destroys the descriptor, cancelling any outstanding
* asynchronous wait operations associated with the descriptor as if by
* calling @c cancel.
*/
~basic_descriptor()
{
}
detail::io_object_impl<detail::reactive_descriptor_service, Executor> impl_;
private:
// Disallow copying and assignment.
basic_descriptor(const basic_descriptor&) ASIO_DELETED;
basic_descriptor& operator=(const basic_descriptor&) ASIO_DELETED;
class initiate_async_wait
{
public:
typedef Executor executor_type;
explicit initiate_async_wait(basic_descriptor* self)
: self_(self)
{
}
executor_type get_executor() const ASIO_NOEXCEPT
{
return self_->get_executor();
}
template <typename WaitHandler>
void operator()(ASIO_MOVE_ARG(WaitHandler) handler, wait_type w) const
{
// If you get an error on the following line it means that your handler
// does not meet the documented type requirements for a WaitHandler.
ASIO_WAIT_HANDLER_CHECK(WaitHandler, handler) type_check;
detail::non_const_lvalue<WaitHandler> handler2(handler);
self_->impl_.get_service().async_wait(
self_->impl_.get_implementation(), w,
handler2.value, self_->impl_.get_executor());
}
private:
basic_descriptor* self_;
};
};
} // namespace posix
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR)
// || defined(GENERATING_DOCUMENTATION)
#endif // ASIO_POSIX_BASIC_DESCRIPTOR_HPP

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//
// posix/basic_stream_descriptor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// 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)
//
#ifndef ASIO_POSIX_BASIC_STREAM_DESCRIPTOR_HPP
#define ASIO_POSIX_BASIC_STREAM_DESCRIPTOR_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include "asio/detail/config.hpp"
#include "asio/posix/descriptor.hpp"
#if defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR) \
|| defined(GENERATING_DOCUMENTATION)
#include "asio/detail/push_options.hpp"
namespace asio {
namespace posix {
/// Provides stream-oriented descriptor functionality.
/**
* The posix::basic_stream_descriptor class template provides asynchronous and
* blocking stream-oriented descriptor functionality.
*
* @par Thread Safety
* @e Distinct @e objects: Safe.@n
* @e Shared @e objects: Unsafe.
*
* Synchronous @c read_some and @c write_some operations are thread safe with
* respect to each other, if the underlying operating system calls are also
* thread safe. This means that it is permitted to perform concurrent calls to
* these synchronous operations on a single descriptor object. Other synchronous
* operations, such as @c close, are not thread safe.
*
* @par Concepts:
* AsyncReadStream, AsyncWriteStream, Stream, SyncReadStream, SyncWriteStream.
*/
template <typename Executor = any_io_executor>
class basic_stream_descriptor
: public basic_descriptor<Executor>
{
public:
/// The type of the executor associated with the object.
typedef Executor executor_type;
/// Rebinds the descriptor type to another executor.
template <typename Executor1>
struct rebind_executor
{
/// The descriptor type when rebound to the specified executor.
typedef basic_stream_descriptor<Executor1> other;
};
/// The native representation of a descriptor.
typedef typename basic_descriptor<Executor>::native_handle_type
native_handle_type;
/// Construct a stream descriptor without opening it.
/**
* This constructor creates a stream descriptor without opening it. The
* descriptor needs to be opened and then connected or accepted before data
* can be sent or received on it.
*
* @param ex The I/O executor that the descriptor will use, by default, to
* dispatch handlers for any asynchronous operations performed on the
* descriptor.
*/
explicit basic_stream_descriptor(const executor_type& ex)
: basic_descriptor<Executor>(ex)
{
}
/// Construct a stream descriptor without opening it.
/**
* This constructor creates a stream descriptor without opening it. The
* descriptor needs to be opened and then connected or accepted before data
* can be sent or received on it.
*
* @param context An execution context which provides the I/O executor that
* the descriptor will use, by default, to dispatch handlers for any
* asynchronous operations performed on the descriptor.
*/
template <typename ExecutionContext>
explicit basic_stream_descriptor(ExecutionContext& context,
typename enable_if<
is_convertible<ExecutionContext&, execution_context&>::value
>::type* = 0)
: basic_descriptor<Executor>(context)
{
}
/// Construct a stream descriptor on an existing native descriptor.
/**
* This constructor creates a stream descriptor object to hold an existing
* native descriptor.
*
* @param ex The I/O executor that the descriptor will use, by default, to
* dispatch handlers for any asynchronous operations performed on the
* descriptor.
*
* @param native_descriptor The new underlying descriptor implementation.
*
* @throws asio::system_error Thrown on failure.
*/
basic_stream_descriptor(const executor_type& ex,
const native_handle_type& native_descriptor)
: basic_descriptor<Executor>(ex, native_descriptor)
{
}
/// Construct a stream descriptor on an existing native descriptor.
/**
* This constructor creates a stream descriptor object to hold an existing
* native descriptor.
*
* @param context An execution context which provides the I/O executor that
* the descriptor will use, by default, to dispatch handlers for any
* asynchronous operations performed on the descriptor.
*
* @param native_descriptor The new underlying descriptor implementation.
*
* @throws asio::system_error Thrown on failure.
*/
template <typename ExecutionContext>
basic_stream_descriptor(ExecutionContext& context,
const native_handle_type& native_descriptor,
typename enable_if<
is_convertible<ExecutionContext&, execution_context&>::value
>::type* = 0)
: basic_descriptor<Executor>(context, native_descriptor)
{
}
#if defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
/// Move-construct a stream descriptor from another.
/**
* This constructor moves a stream descriptor from one object to another.
*
* @param other The other stream descriptor object from which the move
* will occur.
*
* @note Following the move, the moved-from object is in the same state as if
* constructed using the @c basic_stream_descriptor(const executor_type&)
* constructor.
*/
basic_stream_descriptor(basic_stream_descriptor&& other) ASIO_NOEXCEPT
: descriptor(std::move(other))
{
}
/// Move-assign a stream descriptor from another.
/**
* This assignment operator moves a stream descriptor from one object to
* another.
*
* @param other The other stream descriptor object from which the move
* will occur.
*
* @note Following the move, the moved-from object is in the same state as if
* constructed using the @c basic_stream_descriptor(const executor_type&)
* constructor.
*/
basic_stream_descriptor& operator=(basic_stream_descriptor&& other)
{
descriptor::operator=(std::move(other));
return *this;
}
#endif // defined(ASIO_HAS_MOVE) || defined(GENERATING_DOCUMENTATION)
/// Write some data to the descriptor.
/**
* This function is used to write data to the stream descriptor. The function
* call will block until one or more bytes of the data has been written
* successfully, or until an error occurs.
*
* @param buffers One or more data buffers to be written to the descriptor.
*
* @returns The number of bytes written.
*
* @throws asio::system_error Thrown on failure. An error code of
* asio::error::eof indicates that the connection was closed by the
* peer.
*
* @note The write_some operation may not transmit all of the data to the
* peer. Consider using the @ref write function if you need to ensure that
* all data is written before the blocking operation completes.
*
* @par Example
* To write a single data buffer use the @ref buffer function as follows:
* @code
* descriptor.write_some(asio::buffer(data, size));
* @endcode
* See the @ref buffer documentation for information on writing multiple
* buffers in one go, and how to use it with arrays, boost::array or
* std::vector.
*/
template <typename ConstBufferSequence>
std::size_t write_some(const ConstBufferSequence& buffers)
{
asio::error_code ec;
std::size_t s = this->impl_.get_service().write_some(
this->impl_.get_implementation(), buffers, ec);
asio::detail::throw_error(ec, "write_some");
return s;
}
/// Write some data to the descriptor.
/**
* This function is used to write data to the stream descriptor. The function
* call will block until one or more bytes of the data has been written
* successfully, or until an error occurs.
*
* @param buffers One or more data buffers to be written to the descriptor.
*
* @param ec Set to indicate what error occurred, if any.
*
* @returns The number of bytes written. Returns 0 if an error occurred.
*
* @note The write_some operation may not transmit all of the data to the
* peer. Consider using the @ref write function if you need to ensure that
* all data is written before the blocking operation completes.
*/
template <typename ConstBufferSequence>
std::size_t write_some(const ConstBufferSequence& buffers,
asio::error_code& ec)
{
return this->impl_.get_service().write_some(
this->impl_.get_implementation(), buffers, ec);
}
/// Start an asynchronous write.
/**
* This function is used to asynchronously write data to the stream
* descriptor. The function call always returns immediately.
*
* @param buffers One or more data buffers to be written to the descriptor.
* Although the buffers object may be copied as necessary, ownership of the
* underlying memory blocks is retained by the caller, which must guarantee
* that they remain valid until the handler is called.
*
* @param handler The handler to be called when the write operation completes.
* Copies will be made of the handler as required. The function signature of
* the handler must be:
* @code void handler(
* const asio::error_code& error, // Result of operation.
* std::size_t bytes_transferred // Number of bytes written.
* ); @endcode
* Regardless of whether the asynchronous operation completes immediately or
* not, the handler will not be invoked from within this function. On
* immediate completion, invocation of the handler will be performed in a
* manner equivalent to using asio::post().
*
* @note The write operation may not transmit all of the data to the peer.
* Consider using the @ref async_write function if you need to ensure that all
* data is written before the asynchronous operation completes.
*
* @par Example
* To write a single data buffer use the @ref buffer function as follows:
* @code
* descriptor.async_write_some(asio::buffer(data, size), handler);
* @endcode
* See the @ref buffer documentation for information on writing multiple
* buffers in one go, and how to use it with arrays, boost::array or
* std::vector.
*/
template <typename ConstBufferSequence,
ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code,
std::size_t)) WriteHandler
ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(executor_type)>
ASIO_INITFN_AUTO_RESULT_TYPE(WriteHandler,
void (asio::error_code, std::size_t))
async_write_some(const ConstBufferSequence& buffers,
ASIO_MOVE_ARG(WriteHandler) handler
ASIO_DEFAULT_COMPLETION_TOKEN(executor_type))
{
return async_initiate<WriteHandler,
void (asio::error_code, std::size_t)>(
initiate_async_write_some(this), handler, buffers);
}
/// Read some data from the descriptor.
/**
* This function is used to read data from the stream descriptor. The function
* call will block until one or more bytes of data has been read successfully,
* or until an error occurs.
*
* @param buffers One or more buffers into which the data will be read.
*
* @returns The number of bytes read.
*
* @throws asio::system_error Thrown on failure. An error code of
* asio::error::eof indicates that the connection was closed by the
* peer.
*
* @note The read_some operation may not read all of the requested number of
* bytes. Consider using the @ref read function if you need to ensure that
* the requested amount of data is read before the blocking operation
* completes.
*
* @par Example
* To read into a single data buffer use the @ref buffer function as follows:
* @code
* descriptor.read_some(asio::buffer(data, size));
* @endcode
* See the @ref buffer documentation for information on reading into multiple
* buffers in one go, and how to use it with arrays, boost::array or
* std::vector.
*/
template <typename MutableBufferSequence>
std::size_t read_some(const MutableBufferSequence& buffers)
{
asio::error_code ec;
std::size_t s = this->impl_.get_service().read_some(
this->impl_.get_implementation(), buffers, ec);
asio::detail::throw_error(ec, "read_some");
return s;
}
/// Read some data from the descriptor.
/**
* This function is used to read data from the stream descriptor. The function
* call will block until one or more bytes of data has been read successfully,
* or until an error occurs.
*
* @param buffers One or more buffers into which the data will be read.
*
* @param ec Set to indicate what error occurred, if any.
*
* @returns The number of bytes read. Returns 0 if an error occurred.
*
* @note The read_some operation may not read all of the requested number of
* bytes. Consider using the @ref read function if you need to ensure that
* the requested amount of data is read before the blocking operation
* completes.
*/
template <typename MutableBufferSequence>
std::size_t read_some(const MutableBufferSequence& buffers,
asio::error_code& ec)
{
return this->impl_.get_service().read_some(
this->impl_.get_implementation(), buffers, ec);
}
/// Start an asynchronous read.
/**
* This function is used to asynchronously read data from the stream
* descriptor. The function call always returns immediately.
*
* @param buffers One or more buffers into which the data will be read.
* Although the buffers object may be copied as necessary, ownership of the
* underlying memory blocks is retained by the caller, which must guarantee
* that they remain valid until the handler is called.
*
* @param handler The handler to be called when the read operation completes.
* Copies will be made of the handler as required. The function signature of
* the handler must be:
* @code void handler(
* const asio::error_code& error, // Result of operation.
* std::size_t bytes_transferred // Number of bytes read.
* ); @endcode
* Regardless of whether the asynchronous operation completes immediately or
* not, the handler will not be invoked from within this function. On
* immediate completion, invocation of the handler will be performed in a
* manner equivalent to using asio::post().
*
* @note The read operation may not read all of the requested number of bytes.
* Consider using the @ref async_read function if you need to ensure that the
* requested amount of data is read before the asynchronous operation
* completes.
*
* @par Example
* To read into a single data buffer use the @ref buffer function as follows:
* @code
* descriptor.async_read_some(asio::buffer(data, size), handler);
* @endcode
* See the @ref buffer documentation for information on reading into multiple
* buffers in one go, and how to use it with arrays, boost::array or
* std::vector.
*/
template <typename MutableBufferSequence,
ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code,
std::size_t)) ReadHandler
ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(executor_type)>
ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler,
void (asio::error_code, std::size_t))
async_read_some(const MutableBufferSequence& buffers,
ASIO_MOVE_ARG(ReadHandler) handler
ASIO_DEFAULT_COMPLETION_TOKEN(executor_type))
{
return async_initiate<ReadHandler,
void (asio::error_code, std::size_t)>(
initiate_async_read_some(this), handler, buffers);
}
private:
class initiate_async_write_some
{
public:
typedef Executor executor_type;
explicit initiate_async_write_some(basic_stream_descriptor* self)
: self_(self)
{
}
executor_type get_executor() const ASIO_NOEXCEPT
{
return self_->get_executor();
}
template <typename WriteHandler, typename ConstBufferSequence>
void operator()(ASIO_MOVE_ARG(WriteHandler) handler,
const ConstBufferSequence& buffers) const
{
// If you get an error on the following line it means that your handler
// does not meet the documented type requirements for a WriteHandler.
ASIO_WRITE_HANDLER_CHECK(WriteHandler, handler) type_check;
detail::non_const_lvalue<WriteHandler> handler2(handler);
self_->impl_.get_service().async_write_some(
self_->impl_.get_implementation(), buffers,
handler2.value, self_->impl_.get_executor());
}
private:
basic_stream_descriptor* self_;
};
class initiate_async_read_some
{
public:
typedef Executor executor_type;
explicit initiate_async_read_some(basic_stream_descriptor* self)
: self_(self)
{
}
executor_type get_executor() const ASIO_NOEXCEPT
{
return self_->get_executor();
}
template <typename ReadHandler, typename MutableBufferSequence>
void operator()(ASIO_MOVE_ARG(ReadHandler) handler,
const MutableBufferSequence& buffers) 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;
detail::non_const_lvalue<ReadHandler> handler2(handler);
self_->impl_.get_service().async_read_some(
self_->impl_.get_implementation(), buffers,
handler2.value, self_->impl_.get_executor());
}
private:
basic_stream_descriptor* self_;
};
};
} // namespace posix
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR)
// || defined(GENERATING_DOCUMENTATION)
#endif // ASIO_POSIX_BASIC_STREAM_DESCRIPTOR_HPP

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//
// posix/descriptor.hpp
// ~~~~~~~~~~~~~~~~~~~~
//
// 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)
//
#ifndef ASIO_POSIX_DESCRIPTOR_HPP
#define ASIO_POSIX_DESCRIPTOR_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_POSIX_STREAM_DESCRIPTOR) \
|| defined(GENERATING_DOCUMENTATION)
#include "asio/posix/basic_descriptor.hpp"
namespace asio {
namespace posix {
/// Typedef for the typical usage of basic_descriptor.
typedef basic_descriptor<> descriptor;
} // namespace posix
} // namespace asio
#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR)
// || defined(GENERATING_DOCUMENTATION)
#endif // ASIO_POSIX_DESCRIPTOR_HPP

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//
// posix/descriptor_base.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~
//
// 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)
//
#ifndef ASIO_POSIX_DESCRIPTOR_BASE_HPP
#define ASIO_POSIX_DESCRIPTOR_BASE_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_POSIX_STREAM_DESCRIPTOR) \
|| defined(GENERATING_DOCUMENTATION)
#include "asio/detail/io_control.hpp"
#include "asio/detail/socket_option.hpp"
#include "asio/detail/push_options.hpp"
namespace asio {
namespace posix {
/// The descriptor_base class is used as a base for the descriptor class as a
/// place to define the associated IO control commands.
class descriptor_base
{
public:
/// Wait types.
/**
* For use with descriptor::wait() and descriptor::async_wait().
*/
enum wait_type
{
/// Wait for a descriptor to become ready to read.
wait_read,
/// Wait for a descriptor to become ready to write.
wait_write,
/// Wait for a descriptor to have error conditions pending.
wait_error
};
/// IO control command to get the amount of data that can be read without
/// blocking.
/**
* Implements the FIONREAD IO control command.
*
* @par Example
* @code
* asio::posix::stream_descriptor descriptor(my_context);
* ...
* asio::descriptor_base::bytes_readable command(true);
* descriptor.io_control(command);
* std::size_t bytes_readable = command.get();
* @endcode
*
* @par Concepts:
* IoControlCommand.
*/
#if defined(GENERATING_DOCUMENTATION)
typedef implementation_defined bytes_readable;
#else
typedef asio::detail::io_control::bytes_readable bytes_readable;
#endif
protected:
/// Protected destructor to prevent deletion through this type.
~descriptor_base()
{
}
};
} // namespace posix
} // namespace asio
#include "asio/detail/pop_options.hpp"
#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR)
// || defined(GENERATING_DOCUMENTATION)
#endif // ASIO_POSIX_DESCRIPTOR_BASE_HPP

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//
// posix/stream_descriptor.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// 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)
//
#ifndef ASIO_POSIX_STREAM_DESCRIPTOR_HPP
#define ASIO_POSIX_STREAM_DESCRIPTOR_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_POSIX_STREAM_DESCRIPTOR) \
|| defined(GENERATING_DOCUMENTATION)
#include "asio/posix/basic_stream_descriptor.hpp"
namespace asio {
namespace posix {
/// Typedef for the typical usage of a stream-oriented descriptor.
typedef basic_stream_descriptor<> stream_descriptor;
} // namespace posix
} // namespace asio
#endif // defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR)
// || defined(GENERATING_DOCUMENTATION)
#endif // ASIO_POSIX_STREAM_DESCRIPTOR_HPP