namespace asio {
template< typename Handler >
class basic_yield_context {
public:
basic_yield_context(
boost::fibers::context * ctx,
Handler& handler) :
ctx_( ctx),
handler_( handler),
ec_( 0) {
}
basic_yield_context operator[]( boost::system::error_code & ec) {
basic_yield_context tmp( * this);
tmp.ec_ = & ec;
return tmp;
}
private:
boost::fibers::context * ctx_;
Handler & handler_;
boost::system::error_code * ec_;
};
typedef basic_yield_context<
boost::asio::detail::wrapped_handler<
boost::asio::io_service::strand, void(*)(),
boost::asio::detail::is_continuation_if_running> > yield_context;
template< typename Handler, typename Function >
void spawn( boost::asio::io_service & io_service,
BOOST_ASIO_MOVE_ARG( Handler) handler,
BOOST_ASIO_MOVE_ARG( Function) function);
template< typename Handler, typename Function >
void spawn( boost::asio::io_service & io_service,
basic_yield_context< Handler > ctx,
BOOST_ASIO_MOVE_ARG( Function) function);
template< typename Function >
void spawn( boost::asio::io_service::strand strand,
BOOST_ASIO_MOVE_ARG( Function) function);
template< typename Function >
void spawn( boost::asio::io_service & io_service,
BOOST_ASIO_MOVE_ARG( Function) function);
}}}
async_accept(basic_socket<Protocol1, SocketService>& peer,
BOOST_ASIO_MOVE_ARG(AcceptHandler) handler,
typename enable_if<is_convertible<Protocol, Protocol1>::value>::type* = 0)
{
// If you get an error on the following line it means that your handler does
// not meet the documented type requirements for a AcceptHandler.
BOOST_ASIO_ACCEPT_HANDLER_CHECK(AcceptHandler, handler) type_check;
return this->get_service().async_accept(this->get_implementation(),
peer, static_cast<endpoint_type*>(0),
BOOST_ASIO_MOVE_CAST(AcceptHandler)(handler));
}
async_accept(implementation_type& impl,
basic_socket<Protocol1, SocketService>& peer,
endpoint_type* peer_endpoint,
BOOST_ASIO_MOVE_ARG(AcceptHandler) handler,
typename enable_if<
is_convertible<Protocol, Protocol1>::value>::type* = 0) {
boost::asio::detail::async_result_init<AcceptHandler,
void(boost::system::error_code)>
init(BOOST_ASIO_MOVE_CAST(AcceptHandler)(handler));
{
boost::recursive_mutex::scoped_lock lock_state(impl->state_mutex);
if (impl->closed) {
auto handler_to_post = [init]() mutable {
init.handler(
boost::system::error_code(ssf::error::not_connected,
ssf::error::get_ssf_category()));
};
this->get_io_service().post(handler_to_post);
return init.result.get();
}
}
boost::system::error_code ec;
auto fiber_impl = peer.native_handle();
fiber_impl->p_fib_demux = impl->p_fib_demux;
fiber_impl->id.set_local_port(impl->id.local_port());
BOOST_LOG_TRIVIAL(debug) << "fiber acceptor: local port set " << impl->id.local_port();
typedef detail::pending_accept_operation<
AcceptHandler, typename Protocol::socket_type> op;
typename op::ptr p = {
boost::asio::detail::addressof(init.handler),
boost_asio_handler_alloc_helpers::allocate(sizeof(op), init.handler),
0};
p.p = new (p.v)
op(peer.native_handle(), &(peer.native_handle()->id), init.handler);
{
boost::recursive_mutex::scoped_lock lock(impl->accept_op_queue_mutex);
impl->accept_op_queue.push(p.p);
}
p.v = p.p = 0;
impl->a_queues_handler();
return init.result.get();
}
// @end code
// @begin example
// void receive_header_handler(const boost::system::error_code& ec)
// {
// if (!ec)
// {
// // 请求成功!
// }
// }
// ...
// avhttp::http_stream h(io_service);
// ...
// h.async_recvive_header(boost::bind(&receive_header_handler, boost::asio::placeholders::error));
// @end example
template <typename Handler>
void async_receive_header(BOOST_ASIO_MOVE_ARG(Handler) handler);
///清除读写缓冲区数据.
// @备注: 非线程安全! 不应在正在进行读写操作时进行该操作!
AVHTTP_DECL void clear();
///关闭http_stream.
// @失败抛出asio::system_error异常.
// @备注: 停止所有正在进行的读写操作, 正在进行的异步调用将回调
// boost::asio::error::operation_aborted错误.
AVHTTP_DECL void close();
///关闭http_stream.
// @param ec保存失败信息.
// @备注: 停止所有正在进行的读写操作, 正在进行的异步调用将回调
// boost::asio::error::operation_aborted错误.
{
return service_impl_.cancel(impl, ec);
}
// Wait for a signaled state.
void wait(implementation_type& impl, boost::system::error_code& ec)
{
service_impl_.wait(impl, ec);
}
/// Start an asynchronous wait.
template <typename WaitHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(WaitHandler,
void (boost::system::error_code))
async_wait(implementation_type& impl,
BOOST_ASIO_MOVE_ARG(WaitHandler) handler)
{
boost::asio::detail::async_result_init<
WaitHandler, void (boost::system::error_code)> init(
BOOST_ASIO_MOVE_CAST(WaitHandler)(handler));
service_impl_.async_wait(impl, init.handler);
return init.result.get();
}
private:
// Destroy all user-defined handler objects owned by the service.
void shutdown_service()
{
service_impl_.shutdown_service();
* not, the handler will not be invoked from within this function. Invocation of
* the handler will be performed in a manner equivalent to using
* boost::asio::io_service::post().
*
* @note This overload is equivalent to calling:
* @code boost::asio::async_read_at(
* d, 42, b,
* boost::asio::transfer_all(),
* handler); @endcode
*/
template <typename AsyncRandomAccessReadDevice, typename Allocator,
typename ReadHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler,
void (boost::system::error_code, std::size_t))
async_read_at(AsyncRandomAccessReadDevice& d, uint64_t offset,
basic_streambuf<Allocator>& b, BOOST_ASIO_MOVE_ARG(ReadHandler) handler);
/// Start an asynchronous operation to read a certain amount of data at the
/// specified offset.
/**
* This function is used to asynchronously read a certain number of bytes of
* data from a random access device at the specified offset. The function call
* always returns immediately. The asynchronous operation will continue until
* one of the following conditions is true:
*
* @li The completion_condition function object returns 0.
*
* This operation is implemented in terms of zero or more calls to the device's
* async_read_some_at function.
*
* @param d The device from which the data is to be read. The type must support
*
* @param type The type of handshaking to be performed, i.e. as a client or as
* a server.
*
* @param handler The handler to be called when the handshake operation
* completes. Copies will be made of the handler as required. The equivalent
* function signature of the handler must be:
* @code void handler(
* const boost::system::error_code& error // Result of operation.
* ); @endcode
*/
template <typename HandshakeHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(HandshakeHandler,
void (boost::system::error_code))
async_handshake(handshake_type type,
BOOST_ASIO_MOVE_ARG(HandshakeHandler) handler)
{
// If you get an error on the following line it means that your handler does
// not meet the documented type requirements for a HandshakeHandler.
BOOST_ASIO_HANDSHAKE_HANDLER_CHECK(HandshakeHandler, handler) type_check;
boost::asio::detail::async_result_init<
HandshakeHandler, void (boost::system::error_code)> init(
BOOST_ASIO_MOVE_CAST(HandshakeHandler)(handler));
detail::async_io(next_layer_, core_,
detail::handshake_op(type), init.handler);
return init.result.get();
}
/// completes.
/**
* This function is used to launch a new coroutine.
*
* @param handler A handler to be called when the coroutine exits. More
* importantly, the handler provides an execution context (via the the handler
* invocation hook) for the coroutine. The handler must have the signature:
* @code void handler(); @endcode
*
* @param function The coroutine function. The function must have the signature:
* @code void function(basic_yield_context<Handler> yield); @endcode
*
* @param attributes Boost.Coroutine attributes used to customise the coroutine.
*/
template <typename Handler, typename Function>
void spawn(BOOST_ASIO_MOVE_ARG(Handler) handler,
BOOST_ASIO_MOVE_ARG(Function) function,
const pdalboost::coroutines::attributes& attributes
= pdalboost::coroutines::attributes());
/// Start a new stackful coroutine, inheriting the execution context of another.
/**
* This function is used to launch a new coroutine.
*
* @param ctx Identifies the current coroutine as a parent of the new
* coroutine. This specifies that the new coroutine should inherit the
* execution context of the parent. For example, if the parent coroutine is
* executing in a particular strand, then the new coroutine will execute in the
* same strand.
*
* @param function The coroutine function. The function must have the signature:
* @li Constructs an object @c result of type <tt>async_result<Handler></tt>,
* initializing the object as <tt>result(handler)</tt>.
*
* @li Obtains the handler's associated executor object @c ex by performing
* <tt>get_associated_executor(handler)</tt>.
*
* @li Obtains the handler's associated allocator object @c alloc by performing
* <tt>get_associated_allocator(handler)</tt>.
*
* @li Performs <tt>ex.dispatch(std::move(handler), alloc)</tt>.
*
* @li Returns <tt>result.get()</tt>.
*/
template <typename CompletionToken>
BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, void()) dispatch(
BOOST_ASIO_MOVE_ARG(CompletionToken) token);
/// Submits a completion token or function object for execution.
/**
* This function submits an object for execution using the specified executor.
* The function object is queued for execution, and is never called from the
* current thread prior to returning from <tt>dispatch()</tt>.
*
* This function has the following effects:
*
* @li Constructs a function object handler of type @c Handler, initialized
* with <tt>handler(forward<CompletionToken>(token))</tt>.
*
* @li Constructs an object @c result of type <tt>async_result<Handler></tt>,
* initializing the object as <tt>result(handler)</tt>.
*
template <typename CompletionHandler>
void operator()(BOOST_ASIO_MOVE_ARG(CompletionHandler) handler) const
{
typedef typename decay<CompletionHandler>::type DecayedHandler;
typename associated_executor<DecayedHandler>::type ex(
(get_associated_executor)(handler));
typename associated_allocator<DecayedHandler>::type alloc(
(get_associated_allocator)(handler));
ex.dispatch(BOOST_ASIO_MOVE_CAST(CompletionHandler)(handler), alloc);
}
template <typename CompletionHandler, typename Executor>
void operator()(BOOST_ASIO_MOVE_ARG(CompletionHandler) handler,
BOOST_ASIO_MOVE_ARG(Executor) ex) const
{
typedef typename decay<CompletionHandler>::type DecayedHandler;
typename associated_allocator<DecayedHandler>::type alloc(
(get_associated_allocator)(handler));
ex.dispatch(detail::work_dispatcher<DecayedHandler>(
BOOST_ASIO_MOVE_CAST(CompletionHandler)(handler)), alloc);
}
};
} // namespace detail
template <typename CompletionToken>
#include <boost/asio/detail/type_traits.hpp>
#include <boost/asio/system_context.hpp>
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
inline system_context& system_executor::context() const BOOST_ASIO_NOEXCEPT
{
return detail::global<system_context>();
}
template <typename Function, typename Allocator>
void system_executor::dispatch(
BOOST_ASIO_MOVE_ARG(Function) f, const Allocator&) const
{
typename decay<Function>::type tmp(BOOST_ASIO_MOVE_CAST(Function)(f));
boost_asio_handler_invoke_helpers::invoke(tmp, tmp);
}
template <typename Function, typename Allocator>
void system_executor::post(
BOOST_ASIO_MOVE_ARG(Function) f, const Allocator& a) const
{
typedef typename decay<Function>::type function_type;
system_context& ctx = detail::global<system_context>();
// Allocate and construct an operation to wrap the function.
typedef detail::executor_op<function_type, Allocator> op;
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
template <typename Handler, typename Alloc,
typename Operation = scheduler_operation>
class executor_op : public Operation
{
public:
BOOST_ASIO_DEFINE_HANDLER_ALLOCATOR_PTR(executor_op);
template <typename H>
executor_op(BOOST_ASIO_MOVE_ARG(H) h, const Alloc& allocator)
: Operation(&executor_op::do_complete),
handler_(BOOST_ASIO_MOVE_CAST(H)(h)),
allocator_(allocator)
{
}
static void do_complete(void* owner, Operation* base,
const boost::system::error_code& /*ec*/,
std::size_t /*bytes_transferred*/)
{
// Take ownership of the handler object.
executor_op* o(static_cast<executor_op*>(base));
Alloc allocator(o->allocator_);
ptr p = { detail::addressof(allocator), o, o };
* }
* }
*
* ...
*
* boost::asio::posix::stream_descriptor descriptor(io_context);
* ...
* descriptor.async_wait(
* boost::asio::posix::stream_descriptor::wait_read,
* wait_handler);
* @endcode
*/
template <typename WaitHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(WaitHandler,
void (boost::system::error_code))
async_wait(wait_type w, BOOST_ASIO_MOVE_ARG(WaitHandler) handler)
{
// If you get an error on the following line it means that your handler does
// not meet the documented type requirements for a WaitHandler.
BOOST_ASIO_WAIT_HANDLER_CHECK(WaitHandler, handler) type_check;
async_completion<WaitHandler,
void (boost::system::error_code)> init(handler);
this->get_service().async_wait(
this->get_implementation(), w, init.completion_handler);
return init.result.get();
}
protected:
* {
* // Accept succeeded.
* }
* }
*
* ...
*
* boost::asio::ip::tcp::acceptor acceptor(io_service);
* ...
* boost::asio::ip::tcp::socket socket(io_service);
* acceptor.async_accept(socket, accept_handler);
* @endcode
*/
template <typename SocketService, typename AcceptHandler>
void async_accept(basic_socket<protocol_type, SocketService>& peer,
BOOST_ASIO_MOVE_ARG(AcceptHandler) handler)
{
// If you get an error on the following line it means that your handler does
// not meet the documented type requirements for a AcceptHandler.
BOOST_ASIO_ACCEPT_HANDLER_CHECK(AcceptHandler, handler) type_check;
this->get_service().async_accept(this->get_implementation(),
peer, 0, BOOST_ASIO_MOVE_CAST(AcceptHandler)(handler));
}
/// Accept a new connection and obtain the endpoint of the peer
/**
* This function is used to accept a new connection from a peer into the
* given socket, and additionally provide the endpoint of the remote peer.
* The function call will block until a new connection has been accepted
* successfully or an error occurs.
: public basic_io_object<RegistrationService>
{
public:
explicit basic_registration(io_service& io,
std::string name)
// eventually, this will have to be wstring or
// something - name is UTF-8 [dns-sd.h : 883]
: basic_io_object<RegistrationService>(io)
{
}
/// Commit a registration
template <typename CommitHandler>
inline BOOST_ASIO_INITFN_RESULT_TYPE(CommitHandler,
void(boost::system::error_code))
async_commit(BOOST_ASIO_MOVE_ARG(CommitHandler) handler)
{
return this->get_service().async_commit(
this->get_implementation(),
BOOST_ASIO_MOVE_CAST(CommitHandler)(handler));
}
};
typedef basic_registration<registration_service> registration;
} // namespace dnssd
} // namespace ip
} // namespace asio
} // namespace boost
if(timeout == Duration::zero()) {
//TODO this can return false if it failed
impl.send(m);
return message();
} else {
return impl.send_with_reply_and_block(m,
chrono::milliseconds(timeout).count());
}
}
template<typename MessageHandler>
inline BOOST_ASIO_INITFN_RESULT_TYPE(MessageHandler,
void(boost::system::error_code, message))
async_send(implementation_type& impl,
message& m,
BOOST_ASIO_MOVE_ARG(MessageHandler) handler)
{
// begin asynchronous operation
impl.start(this->get_io_service());
boost::asio::detail::async_result_init<
MessageHandler, void(boost::system::error_code, message)> init(
BOOST_ASIO_MOVE_CAST(MessageHandler)(handler));
detail::async_send_op<
BOOST_ASIO_HANDLER_TYPE(MessageHandler,
void(boost::system::error_code, message))>(
this->get_io_service(),
BOOST_ASIO_MOVE_CAST(MessageHandler)(init.handler)) (impl, m);
return init.result.get();
return stream_impl_.next_layer().flush();
}
/// Flush all data from the buffer to the next layer. Returns the number of
/// bytes written to the next layer on the last write operation, or 0 if an
/// error occurred.
std::size_t flush(boost::system::error_code& ec)
{
return stream_impl_.next_layer().flush(ec);
}
/// Start an asynchronous flush.
template <typename WriteHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(WriteHandler,
void (boost::system::error_code, std::size_t))
async_flush(BOOST_ASIO_MOVE_ARG(WriteHandler) handler)
{
return stream_impl_.next_layer().async_flush(
BOOST_ASIO_MOVE_CAST(WriteHandler)(handler));
}
/// Write the given data to the stream. Returns the number of bytes written.
/// Throws an exception on failure.
template <typename ConstBufferSequence>
std::size_t write_some(const ConstBufferSequence& buffers)
{
return stream_impl_.write_some(buffers);
}
/// Write the given data to the stream. Returns the number of bytes written,
/// or 0 if an error occurred.
virtual ~basic_coproto_handle()
{
//std::cout << "coproto_handle destructor" << std::endl;
}
std::string request() const
{
return this->service.request(this->implementation);
}
void request(const std::string& req)
{
this->service.request(this->implementation, req);
}
template <typename DoHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(DoHandler,
void (boost::system::error_code, std::string))
async_do(BOOST_ASIO_MOVE_ARG(DoHandler) handler)
{
// HANDLER_CHECK macro needs to be created and called
return this->service.async_do(this->implementation,
BOOST_ASIO_MOVE_CAST(DoHandler)(handler));
}
};
typedef basic_coproto_handle<std::string, QueueManager > coproto_handle;
#endif /* COPROTO_HANDLE_HPP_ */
* @li The timer was cancelled, in which case the handler is passed the error
* code boost::asio::error::operation_aborted.
*
* @param handler The handler to be called when the timer expires. Copies
* will be made of the handler as required. The function signature of the
* handler must be:
* @code void handler(
* const boost::system::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. Invocation
* of the handler will be performed in a manner equivalent to using
* boost::asio::io_service::post().
*/
template <typename WaitHandler>
void async_wait(BOOST_ASIO_MOVE_ARG(WaitHandler) handler)
{
// If you get an error on the following line it means that your handler does
// not meet the documented type requirements for a WaitHandler.
BOOST_ASIO_WAIT_HANDLER_CHECK(WaitHandler, handler) type_check;
this->service.async_wait(this->implementation,
BOOST_ASIO_MOVE_CAST(WaitHandler)(handler));
}
};
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
namespace asio {
/**
* @defgroup connect boost::asio::connect
*
* @brief Establishes a socket connection by trying each endpoint in a sequence.
*/
/*@{*/
/// Establishes a socket connection by trying each endpoint in a sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c connect member
* function, once for each endpoint in the sequence, until a connection is
* successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @returns On success, an iterator denoting the successfully connected
* endpoint. Otherwise, the end iterator.
*
* @throws boost::system::system_error Thrown on failure. If the sequence is
* empty, the associated @c error_code is boost::asio::error::not_found.
* Otherwise, contains the error from the last connection attempt.
*
* @note This overload assumes that a default constructed object of type @c
* Iterator represents the end of the sequence. This is a valid assumption for
* iterator types such as @c boost::asio::ip::tcp::resolver::iterator.
*
* @par Example
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::socket s(io_service);
* boost::asio::connect(s, r.resolve(q)); @endcode
*/
template <typename Protocol, typename SocketService, typename Iterator>
Iterator connect(basic_socket<Protocol, SocketService>& s, Iterator begin);
/// Establishes a socket connection by trying each endpoint in a sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c connect member
* function, once for each endpoint in the sequence, until a connection is
* successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param ec Set to indicate what error occurred, if any. If the sequence is
* empty, set to boost::asio::error::not_found. Otherwise, contains the error
* from the last connection attempt.
*
* @returns On success, an iterator denoting the successfully connected
* endpoint. Otherwise, the end iterator.
*
* @note This overload assumes that a default constructed object of type @c
* Iterator represents the end of the sequence. This is a valid assumption for
* iterator types such as @c boost::asio::ip::tcp::resolver::iterator.
*
* @par Example
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::socket s(io_service);
* boost::system::error_code ec;
* boost::asio::connect(s, r.resolve(q), ec);
* if (ec)
* {
* // An error occurred.
* } @endcode
*/
template <typename Protocol, typename SocketService, typename Iterator>
Iterator connect(basic_socket<Protocol, SocketService>& s,
Iterator begin, boost::system::error_code& ec);
/// Establishes a socket connection by trying each endpoint in a sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c connect member
* function, once for each endpoint in the sequence, until a connection is
* successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param end An iterator pointing to the end of a sequence of endpoints.
*
* @returns On success, an iterator denoting the successfully connected
* endpoint. Otherwise, the end iterator.
*
* @throws boost::system::system_error Thrown on failure. If the sequence is
* empty, the associated @c error_code is boost::asio::error::not_found.
* Otherwise, contains the error from the last connection attempt.
*
* @par Example
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::resolver::iterator i = r.resolve(q), end;
* tcp::socket s(io_service);
* boost::asio::connect(s, i, end); @endcode
*/
template <typename Protocol, typename SocketService, typename Iterator>
Iterator connect(basic_socket<Protocol, SocketService>& s,
Iterator begin, Iterator end);
/// Establishes a socket connection by trying each endpoint in a sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c connect member
* function, once for each endpoint in the sequence, until a connection is
* successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param end An iterator pointing to the end of a sequence of endpoints.
*
* @param ec Set to indicate what error occurred, if any. If the sequence is
* empty, set to boost::asio::error::not_found. Otherwise, contains the error
* from the last connection attempt.
*
* @returns On success, an iterator denoting the successfully connected
* endpoint. Otherwise, the end iterator.
*
* @par Example
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::resolver::iterator i = r.resolve(q), end;
* tcp::socket s(io_service);
* boost::system::error_code ec;
* boost::asio::connect(s, i, end, ec);
* if (ec)
* {
* // An error occurred.
* } @endcode
*/
template <typename Protocol, typename SocketService, typename Iterator>
Iterator connect(basic_socket<Protocol, SocketService>& s,
Iterator begin, Iterator end, boost::system::error_code& ec);
/// Establishes a socket connection by trying each endpoint in a sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c connect member
* function, once for each endpoint in the sequence, until a connection is
* successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param connect_condition A function object that is called prior to each
* connection attempt. The signature of the function object must be:
* @code Iterator connect_condition(
* const boost::system::error_code& ec,
* Iterator next); @endcode
* The @c ec parameter contains the result from the most recent connect
* operation. Before the first connection attempt, @c ec is always set to
* indicate success. The @c next parameter is an iterator pointing to the next
* endpoint to be tried. The function object should return the next iterator,
* but is permitted to return a different iterator so that endpoints may be
* skipped. The implementation guarantees that the function object will never
* be called with the end iterator.
*
* @returns On success, an iterator denoting the successfully connected
* endpoint. Otherwise, the end iterator.
*
* @throws boost::system::system_error Thrown on failure. If the sequence is
* empty, the associated @c error_code is boost::asio::error::not_found.
* Otherwise, contains the error from the last connection attempt.
*
* @note This overload assumes that a default constructed object of type @c
* Iterator represents the end of the sequence. This is a valid assumption for
* iterator types such as @c boost::asio::ip::tcp::resolver::iterator.
*
* @par Example
* The following connect condition function object can be used to output
* information about the individual connection attempts:
* @code struct my_connect_condition
* {
* template <typename Iterator>
* Iterator operator()(
* const boost::system::error_code& ec,
* Iterator next)
* {
* if (ec) std::cout << "Error: " << ec.message() << std::endl;
* std::cout << "Trying: " << next->endpoint() << std::endl;
* return next;
* }
* }; @endcode
* It would be used with the boost::asio::connect function as follows:
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::socket s(io_service);
* tcp::resolver::iterator i = boost::asio::connect(
* s, r.resolve(q), my_connect_condition());
* std::cout << "Connected to: " << i->endpoint() << std::endl; @endcode
*/
template <typename Protocol, typename SocketService,
typename Iterator, typename ConnectCondition>
Iterator connect(basic_socket<Protocol, SocketService>& s,
Iterator begin, ConnectCondition connect_condition);
/// Establishes a socket connection by trying each endpoint in a sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c connect member
* function, once for each endpoint in the sequence, until a connection is
* successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param connect_condition A function object that is called prior to each
* connection attempt. The signature of the function object must be:
* @code Iterator connect_condition(
* const boost::system::error_code& ec,
* Iterator next); @endcode
* The @c ec parameter contains the result from the most recent connect
* operation. Before the first connection attempt, @c ec is always set to
* indicate success. The @c next parameter is an iterator pointing to the next
* endpoint to be tried. The function object should return the next iterator,
* but is permitted to return a different iterator so that endpoints may be
* skipped. The implementation guarantees that the function object will never
* be called with the end iterator.
*
* @param ec Set to indicate what error occurred, if any. If the sequence is
* empty, set to boost::asio::error::not_found. Otherwise, contains the error
* from the last connection attempt.
*
* @returns On success, an iterator denoting the successfully connected
* endpoint. Otherwise, the end iterator.
*
* @note This overload assumes that a default constructed object of type @c
* Iterator represents the end of the sequence. This is a valid assumption for
* iterator types such as @c boost::asio::ip::tcp::resolver::iterator.
*
* @par Example
* The following connect condition function object can be used to output
* information about the individual connection attempts:
* @code struct my_connect_condition
* {
* template <typename Iterator>
* Iterator operator()(
* const boost::system::error_code& ec,
* Iterator next)
* {
* if (ec) std::cout << "Error: " << ec.message() << std::endl;
* std::cout << "Trying: " << next->endpoint() << std::endl;
* return next;
* }
* }; @endcode
* It would be used with the boost::asio::connect function as follows:
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::socket s(io_service);
* boost::system::error_code ec;
* tcp::resolver::iterator i = boost::asio::connect(
* s, r.resolve(q), my_connect_condition(), ec);
* if (ec)
* {
* // An error occurred.
* }
* else
* {
* std::cout << "Connected to: " << i->endpoint() << std::endl;
* } @endcode
*/
template <typename Protocol, typename SocketService,
typename Iterator, typename ConnectCondition>
Iterator connect(basic_socket<Protocol, SocketService>& s, Iterator begin,
ConnectCondition connect_condition, boost::system::error_code& ec);
/// Establishes a socket connection by trying each endpoint in a sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c connect member
* function, once for each endpoint in the sequence, until a connection is
* successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param end An iterator pointing to the end of a sequence of endpoints.
*
* @param connect_condition A function object that is called prior to each
* connection attempt. The signature of the function object must be:
* @code Iterator connect_condition(
* const boost::system::error_code& ec,
* Iterator next); @endcode
* The @c ec parameter contains the result from the most recent connect
* operation. Before the first connection attempt, @c ec is always set to
* indicate success. The @c next parameter is an iterator pointing to the next
* endpoint to be tried. The function object should return the next iterator,
* but is permitted to return a different iterator so that endpoints may be
* skipped. The implementation guarantees that the function object will never
* be called with the end iterator.
*
* @returns On success, an iterator denoting the successfully connected
* endpoint. Otherwise, the end iterator.
*
* @throws boost::system::system_error Thrown on failure. If the sequence is
* empty, the associated @c error_code is boost::asio::error::not_found.
* Otherwise, contains the error from the last connection attempt.
*
* @par Example
* The following connect condition function object can be used to output
* information about the individual connection attempts:
* @code struct my_connect_condition
* {
* template <typename Iterator>
* Iterator operator()(
* const boost::system::error_code& ec,
* Iterator next)
* {
* if (ec) std::cout << "Error: " << ec.message() << std::endl;
* std::cout << "Trying: " << next->endpoint() << std::endl;
* return next;
* }
* }; @endcode
* It would be used with the boost::asio::connect function as follows:
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::resolver::iterator i = r.resolve(q), end;
* tcp::socket s(io_service);
* i = boost::asio::connect(s, i, end, my_connect_condition());
* std::cout << "Connected to: " << i->endpoint() << std::endl; @endcode
*/
template <typename Protocol, typename SocketService,
typename Iterator, typename ConnectCondition>
Iterator connect(basic_socket<Protocol, SocketService>& s, Iterator begin,
Iterator end, ConnectCondition connect_condition);
/// Establishes a socket connection by trying each endpoint in a sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c connect member
* function, once for each endpoint in the sequence, until a connection is
* successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param end An iterator pointing to the end of a sequence of endpoints.
*
* @param connect_condition A function object that is called prior to each
* connection attempt. The signature of the function object must be:
* @code Iterator connect_condition(
* const boost::system::error_code& ec,
* Iterator next); @endcode
* The @c ec parameter contains the result from the most recent connect
* operation. Before the first connection attempt, @c ec is always set to
* indicate success. The @c next parameter is an iterator pointing to the next
* endpoint to be tried. The function object should return the next iterator,
* but is permitted to return a different iterator so that endpoints may be
* skipped. The implementation guarantees that the function object will never
* be called with the end iterator.
*
* @param ec Set to indicate what error occurred, if any. If the sequence is
* empty, set to boost::asio::error::not_found. Otherwise, contains the error
* from the last connection attempt.
*
* @returns On success, an iterator denoting the successfully connected
* endpoint. Otherwise, the end iterator.
*
* @par Example
* The following connect condition function object can be used to output
* information about the individual connection attempts:
* @code struct my_connect_condition
* {
* template <typename Iterator>
* Iterator operator()(
* const boost::system::error_code& ec,
* Iterator next)
* {
* if (ec) std::cout << "Error: " << ec.message() << std::endl;
* std::cout << "Trying: " << next->endpoint() << std::endl;
* return next;
* }
* }; @endcode
* It would be used with the boost::asio::connect function as follows:
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::resolver::iterator i = r.resolve(q), end;
* tcp::socket s(io_service);
* boost::system::error_code ec;
* i = boost::asio::connect(s, i, end, my_connect_condition(), ec);
* if (ec)
* {
* // An error occurred.
* }
* else
* {
* std::cout << "Connected to: " << i->endpoint() << std::endl;
* } @endcode
*/
template <typename Protocol, typename SocketService,
typename Iterator, typename ConnectCondition>
Iterator connect(basic_socket<Protocol, SocketService>& s,
Iterator begin, Iterator end, ConnectCondition connect_condition,
boost::system::error_code& ec);
/*@}*/
/**
* @defgroup async_connect boost::asio::async_connect
*
* @brief Asynchronously establishes a socket connection by trying each
* endpoint in a sequence.
*/
/*@{*/
/// Asynchronously establishes a socket connection by trying each endpoint in a
/// sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c async_connect
* member function, once for each endpoint in the sequence, until a connection
* is successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param handler The handler to be called when the connect operation
* completes. Copies will be made of the handler as required. The function
* signature of the handler must be:
* @code void handler(
* // Result of operation. if the sequence is empty, set to
* // boost::asio::error::not_found. Otherwise, contains the
* // error from the last connection attempt.
* const boost::system::error_code& error,
*
* // On success, an iterator denoting the successfully
* // connected endpoint. Otherwise, the end iterator.
* Iterator iterator
* ); @endcode
* Regardless of whether the asynchronous operation completes immediately or
* not, the handler will not be invoked from within this function. Invocation
* of the handler will be performed in a manner equivalent to using
* boost::asio::io_service::post().
*
* @note This overload assumes that a default constructed object of type @c
* Iterator represents the end of the sequence. This is a valid assumption for
* iterator types such as @c boost::asio::ip::tcp::resolver::iterator.
*
* @par Example
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::socket s(io_service);
*
* // ...
*
* r.async_resolve(q, resolve_handler);
*
* // ...
*
* void resolve_handler(
* const boost::system::error_code& ec,
* tcp::resolver::iterator i)
* {
* if (!ec)
* {
* boost::asio::async_connect(s, i, connect_handler);
* }
* }
*
* // ...
*
* void connect_handler(
* const boost::system::error_code& ec,
* tcp::resolver::iterator i)
* {
* // ...
* } @endcode
*/
template <typename Protocol, typename SocketService,
typename Iterator, typename ComposedConnectHandler>
void async_connect(basic_socket<Protocol, SocketService>& s,
Iterator begin, BOOST_ASIO_MOVE_ARG(ComposedConnectHandler) handler);
/// Asynchronously establishes a socket connection by trying each endpoint in a
/// sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c async_connect
* member function, once for each endpoint in the sequence, until a connection
* is successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param end An iterator pointing to the end of a sequence of endpoints.
*
* @param handler The handler to be called when the connect operation
* completes. Copies will be made of the handler as required. The function
* signature of the handler must be:
* @code void handler(
* // Result of operation. if the sequence is empty, set to
* // boost::asio::error::not_found. Otherwise, contains the
* // error from the last connection attempt.
* const boost::system::error_code& error,
*
* // On success, an iterator denoting the successfully
* // connected endpoint. Otherwise, the end iterator.
* Iterator iterator
* ); @endcode
* Regardless of whether the asynchronous operation completes immediately or
* not, the handler will not be invoked from within this function. Invocation
* of the handler will be performed in a manner equivalent to using
* boost::asio::io_service::post().
*
* @par Example
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::socket s(io_service);
*
* // ...
*
* r.async_resolve(q, resolve_handler);
*
* // ...
*
* void resolve_handler(
* const boost::system::error_code& ec,
* tcp::resolver::iterator i)
* {
* if (!ec)
* {
* tcp::resolver::iterator end;
* boost::asio::async_connect(s, i, end, connect_handler);
* }
* }
*
* // ...
*
* void connect_handler(
* const boost::system::error_code& ec,
* tcp::resolver::iterator i)
* {
* // ...
* } @endcode
*/
template <typename Protocol, typename SocketService,
typename Iterator, typename ComposedConnectHandler>
void async_connect(basic_socket<Protocol, SocketService>& s,
Iterator begin, Iterator end,
BOOST_ASIO_MOVE_ARG(ComposedConnectHandler) handler);
/// Asynchronously establishes a socket connection by trying each endpoint in a
/// sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c async_connect
* member function, once for each endpoint in the sequence, until a connection
* is successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param connect_condition A function object that is called prior to each
* connection attempt. The signature of the function object must be:
* @code Iterator connect_condition(
* const boost::system::error_code& ec,
* Iterator next); @endcode
* The @c ec parameter contains the result from the most recent connect
* operation. Before the first connection attempt, @c ec is always set to
* indicate success. The @c next parameter is an iterator pointing to the next
* endpoint to be tried. The function object should return the next iterator,
* but is permitted to return a different iterator so that endpoints may be
* skipped. The implementation guarantees that the function object will never
* be called with the end iterator.
*
* @param handler The handler to be called when the connect operation
* completes. Copies will be made of the handler as required. The function
* signature of the handler must be:
* @code void handler(
* // Result of operation. if the sequence is empty, set to
* // boost::asio::error::not_found. Otherwise, contains the
* // error from the last connection attempt.
* const boost::system::error_code& error,
*
* // On success, an iterator denoting the successfully
* // connected endpoint. Otherwise, the end iterator.
* Iterator iterator
* ); @endcode
* Regardless of whether the asynchronous operation completes immediately or
* not, the handler will not be invoked from within this function. Invocation
* of the handler will be performed in a manner equivalent to using
* boost::asio::io_service::post().
*
* @note This overload assumes that a default constructed object of type @c
* Iterator represents the end of the sequence. This is a valid assumption for
* iterator types such as @c boost::asio::ip::tcp::resolver::iterator.
*
* @par Example
* The following connect condition function object can be used to output
* information about the individual connection attempts:
* @code struct my_connect_condition
* {
* template <typename Iterator>
* Iterator operator()(
* const boost::system::error_code& ec,
* Iterator next)
* {
* if (ec) std::cout << "Error: " << ec.message() << std::endl;
* std::cout << "Trying: " << next->endpoint() << std::endl;
* return next;
* }
* }; @endcode
* It would be used with the boost::asio::connect function as follows:
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::socket s(io_service);
*
* // ...
*
* r.async_resolve(q, resolve_handler);
*
* // ...
*
* void resolve_handler(
* const boost::system::error_code& ec,
* tcp::resolver::iterator i)
* {
* if (!ec)
* {
* boost::asio::async_connect(s, i,
* my_connect_condition(),
* connect_handler);
* }
* }
*
* // ...
*
* void connect_handler(
* const boost::system::error_code& ec,
* tcp::resolver::iterator i)
* {
* if (ec)
* {
* // An error occurred.
* }
* else
* {
* std::cout << "Connected to: " << i->endpoint() << std::endl;
* }
* } @endcode
*/
template <typename Protocol, typename SocketService, typename Iterator,
typename ConnectCondition, typename ComposedConnectHandler>
void async_connect(basic_socket<Protocol, SocketService>& s, Iterator begin,
ConnectCondition connect_condition,
BOOST_ASIO_MOVE_ARG(ComposedConnectHandler) handler);
/// Asynchronously establishes a socket connection by trying each endpoint in a
/// sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c async_connect
* member function, once for each endpoint in the sequence, until a connection
* is successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param end An iterator pointing to the end of a sequence of endpoints.
*
* @param connect_condition A function object that is called prior to each
* connection attempt. The signature of the function object must be:
* @code Iterator connect_condition(
* const boost::system::error_code& ec,
* Iterator next); @endcode
* The @c ec parameter contains the result from the most recent connect
* operation. Before the first connection attempt, @c ec is always set to
* indicate success. The @c next parameter is an iterator pointing to the next
* endpoint to be tried. The function object should return the next iterator,
* but is permitted to return a different iterator so that endpoints may be
* skipped. The implementation guarantees that the function object will never
* be called with the end iterator.
*
* @param handler The handler to be called when the connect operation
* completes. Copies will be made of the handler as required. The function
* signature of the handler must be:
* @code void handler(
* // Result of operation. if the sequence is empty, set to
* // boost::asio::error::not_found. Otherwise, contains the
* // error from the last connection attempt.
* const boost::system::error_code& error,
*
* // On success, an iterator denoting the successfully
* // connected endpoint. Otherwise, the end iterator.
* Iterator iterator
* ); @endcode
* Regardless of whether the asynchronous operation completes immediately or
* not, the handler will not be invoked from within this function. Invocation
* of the handler will be performed in a manner equivalent to using
* boost::asio::io_service::post().
*
* @par Example
* The following connect condition function object can be used to output
* information about the individual connection attempts:
* @code struct my_connect_condition
* {
* template <typename Iterator>
* Iterator operator()(
* const boost::system::error_code& ec,
* Iterator next)
* {
* if (ec) std::cout << "Error: " << ec.message() << std::endl;
* std::cout << "Trying: " << next->endpoint() << std::endl;
* return next;
* }
* }; @endcode
* It would be used with the boost::asio::connect function as follows:
* @code tcp::resolver r(io_service);
* tcp::resolver::query q("host", "service");
* tcp::socket s(io_service);
*
* // ...
*
* r.async_resolve(q, resolve_handler);
*
* // ...
*
* void resolve_handler(
* const boost::system::error_code& ec,
* tcp::resolver::iterator i)
* {
* if (!ec)
* {
* tcp::resolver::iterator end;
* boost::asio::async_connect(s, i, end,
* my_connect_condition(),
* connect_handler);
* }
* }
*
* // ...
*
* void connect_handler(
* const boost::system::error_code& ec,
* tcp::resolver::iterator i)
* {
* if (ec)
* {
* // An error occurred.
* }
* else
* {
* std::cout << "Connected to: " << i->endpoint() << std::endl;
* }
* } @endcode
*/
template <typename Protocol, typename SocketService, typename Iterator,
typename ConnectCondition, typename ComposedConnectHandler>
void async_connect(basic_socket<Protocol, SocketService>& s,
Iterator begin, Iterator end, ConnectCondition connect_condition,
BOOST_ASIO_MOVE_ARG(ComposedConnectHandler) handler);
/*@}*/
} // namespace asio
* inside this function if the guarantee can be met. If this function is
* called from within a handler that was posted or dispatched through the same
* strand, then the new handler will be executed immediately.
*
* The strand's guarantee is in addition to the guarantee provided by the
* underlying io_service. The io_service guarantees that the handler will only
* be called in a thread in which the io_service's run member function is
* currently being invoked.
*
* @param handler The handler to be called. The strand will make a copy of the
* handler object as required. The function signature of the handler must be:
* @code void handler(); @endcode
*/
template <typename CompletionHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(CompletionHandler, void ())
dispatch(BOOST_ASIO_MOVE_ARG(CompletionHandler) handler)
{
// If you get an error on the following line it means that your handler does
// not meet the documented type requirements for a CompletionHandler.
BOOST_ASIO_COMPLETION_HANDLER_CHECK(CompletionHandler, handler) type_check;
detail::async_result_init<
CompletionHandler, void ()> init(
BOOST_ASIO_MOVE_CAST(CompletionHandler)(handler));
service_.dispatch(impl_, init.handler);
return init.result.get();
}
/// Request the strand to invoke the given handler and return
// void tail_handler(const boost::system::error_code& ec)
// {
// if (!ec)
// {
// // 发送成功!
// }
// }
// ...
// avhttp::file_upload f(io_service);
// ...
// f.async_write_tail(handler);
// @end example
// @备注: handler也可以使用boost.bind来绑定一个符合规定的函数作
// 为async_open的参数handler.
template <typename Handler>
void async_write_tail(BOOST_ASIO_MOVE_ARG(Handler) handler);
///设置http header选项.
AVHTTP_DECL void request_option(request_opts& opts);
///返回http_stream对象的引用.
AVHTTP_DECL http_stream& get_http_stream();
///反回当前file_upload所使用的io_service的引用.
AVHTTP_DECL boost::asio::io_service& get_io_service();
private:
template <typename Handler>
struct open_coro;
* @param handler The handler to be called when the accept operation
* completes. Copies will be made of the handler as required. The function
* signature of the handler must be:
* @code void handler(
* const lslboost::system::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. Invocation
* of the handler will be performed in a manner equivalent to using
* lslboost::asio::io_service::post().
*/
template <typename SocketService, typename AcceptHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(AcceptHandler,
void (lslboost::system::error_code))
async_accept(basic_socket<protocol_type, SocketService>& peer,
endpoint_type& peer_endpoint, BOOST_ASIO_MOVE_ARG(AcceptHandler) handler)
{
// If you get an error on the following line it means that your handler does
// not meet the documented type requirements for a AcceptHandler.
BOOST_ASIO_ACCEPT_HANDLER_CHECK(AcceptHandler, handler) type_check;
return this->get_service().async_accept(this->get_implementation(), peer,
&peer_endpoint, BOOST_ASIO_MOVE_CAST(AcceptHandler)(handler));
}
};
} // namespace asio
} // namespace lslboost
#include <lslboost/asio/detail/pop_options.hpp>
* @param handler The handler to be called when the signal occurs. Copies
* will be made of the handler as required. The function signature of the
* handler must be:
* @code void handler(
* const boost::system::error_code& error, // Result of operation.
* int signal_number // Indicates which signal occurred.
* ); @endcode
* Regardless of whether the asynchronous operation completes immediately or
* not, the handler will not be invoked from within this function. Invocation
* of the handler will be performed in a manner equivalent to using
* boost::asio::io_service::post().
*/
template <typename SignalHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(SignalHandler,
void (boost::system::error_code, int))
async_wait(BOOST_ASIO_MOVE_ARG(SignalHandler) handler)
{
// If you get an error on the following line it means that your handler does
// not meet the documented type requirements for a SignalHandler.
BOOST_ASIO_SIGNAL_HANDLER_CHECK(SignalHandler, handler) type_check;
return this->service.async_wait(this->implementation,
BOOST_ASIO_MOVE_CAST(SignalHandler)(handler));
}
};
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
*
* // ...
*
* void connect_handler(
* const boost::system::error_code& ec,
* tcp::resolver::iterator i)
* {
* // ...
* } @endcode
*/
template <typename Protocol, typename SocketService,
typename Iterator, typename ComposedConnectHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(ComposedConnectHandler,
void (boost::system::error_code, Iterator))
async_connect(basic_socket<Protocol, SocketService>& s,
Iterator begin, BOOST_ASIO_MOVE_ARG(ComposedConnectHandler) handler);
/// Asynchronously establishes a socket connection by trying each endpoint in a
/// sequence.
/**
* This function attempts to connect a socket to one of a sequence of
* endpoints. It does this by repeated calls to the socket's @c async_connect
* member function, once for each endpoint in the sequence, until a connection
* is successfully established.
*
* @param s The socket to be connected. If the socket is already open, it will
* be closed.
*
* @param begin An iterator pointing to the start of a sequence of endpoints.
*
* @param end An iterator pointing to the end of a sequence of endpoints.
/**
* This function is used to ask the strand to execute the given function
* object on its underlying executor. The function object will be executed
* inside this function if the strand is not otherwise busy and if the
* underlying executor's @c dispatch() function is also able to execute the
* function before returning.
*
* @param f The function object to be called. The executor will make
* a copy of the handler object as required. The function signature of the
* function object must be: @code void function(); @endcode
*
* @param a An allocator that may be used by the executor to allocate the
* internal storage needed for function invocation.
*/
template <typename Function, typename Allocator>
void dispatch(BOOST_ASIO_MOVE_ARG(Function) f, const Allocator& a) const
{
detail::strand_executor_service::dispatch(impl_,
executor_, BOOST_ASIO_MOVE_CAST(Function)(f), a);
}
/// Request the strand to invoke the given function object.
/**
* This function is used to ask the executor to execute the given function
* object. The function object will never be executed inside this function.
* Instead, it will be scheduled by the underlying executor's defer function.
*
* @param f The function object to be called. The executor will make
* a copy of the handler object as required. The function signature of the
* function object must be: @code void function(); @endcode
*
return service_impl_.clear(impl, ec);
}
/// Cancel all operations associated with the signal set.
lslboost::system::error_code cancel(implementation_type& impl,
lslboost::system::error_code& ec)
{
return service_impl_.cancel(impl, ec);
}
// Start an asynchronous operation to wait for a signal to be delivered.
template <typename SignalHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(SignalHandler,
void (lslboost::system::error_code, int))
async_wait(implementation_type& impl,
BOOST_ASIO_MOVE_ARG(SignalHandler) handler)
{
detail::async_result_init<
SignalHandler, void (lslboost::system::error_code, int)> init(
BOOST_ASIO_MOVE_CAST(SignalHandler)(handler));
service_impl_.async_wait(impl, init.handler);
return init.result.get();
}
private:
// Destroy all user-defined handler objects owned by the service.
void shutdown_service()
{
service_impl_.shutdown_service();
# include <boost/bind.hpp>
#else // defined(BOOST_ASIO_HAS_BOOST_BIND)
# include <functional>
#endif // defined(BOOST_ASIO_HAS_BOOST_BIND)
namespace archetypes {
#if defined(BOOST_ASIO_HAS_BOOST_BIND)
namespace bindns = boost;
#else // defined(BOOST_ASIO_HAS_BOOST_BIND)
namespace bindns = std;
#endif // defined(BOOST_ASIO_HAS_BOOST_BIND)
template <typename CompletionToken>
BOOST_ASIO_INITFN_RESULT_TYPE(CompletionToken, void())
async_op_0(BOOST_ASIO_MOVE_ARG(CompletionToken) token)
{
typedef typename boost::asio::async_completion<CompletionToken,
void()>::completion_handler_type handler_type;
boost::asio::async_completion<CompletionToken,
void()> completion(token);
typename boost::asio::associated_allocator<handler_type>::type a
= boost::asio::get_associated_allocator(completion.completion_handler);
typename boost::asio::associated_executor<handler_type>::type ex
= boost::asio::get_associated_executor(completion.completion_handler);
ex.post(BOOST_ASIO_MOVE_CAST(handler_type)(completion.completion_handler), a);
template <typename Function, typename ReadHandler>
inline void asio_handler_invoke(const Function& function,
buffered_fill_handler<ReadHandler>* this_handler)
{
boost_asio_handler_invoke_helpers::invoke(
function, this_handler->handler_);
}
} // namespace detail
template <typename Stream>
template <typename ReadHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler,
void (boost::system::error_code, std::size_t))
buffered_read_stream<Stream>::async_fill(
BOOST_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.
BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
detail::async_result_init<
ReadHandler, void (boost::system::error_code, std::size_t)> init(
BOOST_ASIO_MOVE_CAST(ReadHandler)(handler));
std::size_t previous_size = storage_.size();
storage_.resize(storage_.capacity());
next_layer_.async_read_some(
buffer(
storage_.data() + previous_size,
storage_.size() - previous_size),
*
* std::size_t bytes_transferred // Number of bytes written from the
* // buffers. If an error occurred,
* // this will be less than the sum
* // of the buffer sizes.
* ); @endcode
* Regardless of whether the asynchronous operation completes immediately or
* not, the handler will not be invoked from within this function. Invocation of
* the handler will be performed in a manner equivalent to using
* pdalboost::asio::io_service::post().
*/
template <typename AsyncWriteStream, typename Allocator, typename WriteHandler>
BOOST_ASIO_INITFN_RESULT_TYPE(WriteHandler,
void (pdalboost::system::error_code, std::size_t))
async_write(AsyncWriteStream& s, basic_streambuf<Allocator>& b,
BOOST_ASIO_MOVE_ARG(WriteHandler) handler);
/// Start an asynchronous operation to write a certain amount of data to a
/// stream.
/**
* This function is used to asynchronously write a certain number of bytes of
* data to a stream. The function call always returns immediately. The
* asynchronous operation will continue until one of the following conditions
* is true:
*
* @li All of the data in the supplied basic_streambuf has been written.
*
* @li The completion_condition function object returns 0.
*
* This operation is implemented in terms of zero or more calls to the stream's
* async_write_some function, and is known as a <em>composed operation</em>. The
