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Diffstat (limited to 'websocketpp/transport/stub/connection.hpp')
| -rw-r--r-- | websocketpp/transport/stub/connection.hpp | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/websocketpp/transport/stub/connection.hpp b/websocketpp/transport/stub/connection.hpp new file mode 100644 index 00000000..59bd4a0a --- /dev/null +++ b/websocketpp/transport/stub/connection.hpp @@ -0,0 +1,286 @@ +/* + * Copyright (c) 2014, Peter Thorson. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the WebSocket++ Project nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef WEBSOCKETPP_TRANSPORT_STUB_CON_HPP +#define WEBSOCKETPP_TRANSPORT_STUB_CON_HPP + +#include <websocketpp/transport/stub/base.hpp> + +#include <websocketpp/transport/base/connection.hpp> + +#include <websocketpp/logger/levels.hpp> + +#include <websocketpp/common/connection_hdl.hpp> +#include <websocketpp/common/memory.hpp> +#include <websocketpp/common/platforms.hpp> + +#include <string> +#include <vector> + +namespace websocketpp { +namespace transport { +namespace stub { + +/// Empty timer class to stub out for timer functionality that stub +/// transport doesn't support +struct timer { + void cancel() {} +}; + +template <typename config> +class connection : public lib::enable_shared_from_this< connection<config> > { +public: + /// Type of this connection transport component + typedef connection<config> type; + /// Type of a shared pointer to this connection transport component + typedef lib::shared_ptr<type> ptr; + + /// transport concurrency policy + typedef typename config::concurrency_type concurrency_type; + /// Type of this transport's access logging policy + typedef typename config::alog_type alog_type; + /// Type of this transport's error logging policy + typedef typename config::elog_type elog_type; + + // Concurrency policy types + typedef typename concurrency_type::scoped_lock_type scoped_lock_type; + typedef typename concurrency_type::mutex_type mutex_type; + + typedef lib::shared_ptr<timer> timer_ptr; + + explicit connection(bool is_server, alog_type & alog, elog_type & elog) + : m_alog(alog), m_elog(elog) + { + m_alog.write(log::alevel::devel,"stub con transport constructor"); + } + + /// Get a shared pointer to this component + ptr get_shared() { + return type::shared_from_this(); + } + + /// Set whether or not this connection is secure + /** + * Todo: docs + * + * @since 0.3.0-alpha4 + * + * @param value Whether or not this connection is secure. + */ + void set_secure(bool value) {} + + /// Tests whether or not the underlying transport is secure + /** + * TODO: docs + * + * @return Whether or not the underlying transport is secure + */ + bool is_secure() const { + return false; + } + + /// Set uri hook + /** + * Called by the endpoint as a connection is being established to provide + * the uri being connected to to the transport layer. + * + * Implementation is optional and can be ignored if the transport has no + * need for this information. + * + * @since 0.6.0 + * + * @param u The uri to set + */ + void set_uri(uri_ptr) {} + + /// Set human readable remote endpoint address + /** + * Sets the remote endpoint address returned by `get_remote_endpoint`. This + * value should be a human readable string that describes the remote + * endpoint. Typically an IP address or hostname, perhaps with a port. But + * may be something else depending on the nature of the underlying + * transport. + * + * If none is set a default is returned. + * + * @since 0.3.0-alpha4 + * + * @param value The remote endpoint address to set. + */ + void set_remote_endpoint(std::string value) {} + + /// Get human readable remote endpoint address + /** + * TODO: docs + * + * This value is used in access and error logs and is available to the end + * application for including in user facing interfaces and messages. + * + * @return A string identifying the address of the remote endpoint + */ + std::string get_remote_endpoint() const { + return "unknown (stub transport)"; + } + + /// Get the connection handle + /** + * @return The handle for this connection. + */ + connection_hdl get_handle() const { + return connection_hdl(); + } + + /// Call back a function after a period of time. + /** + * Timers are not implemented in this transport. The timer pointer will + * always be empty. The handler will never be called. + * + * @param duration Length of time to wait in milliseconds + * @param callback The function to call back when the timer has expired + * @return A handle that can be used to cancel the timer if it is no longer + * needed. + */ + timer_ptr set_timer(long duration, timer_handler handler) { + return timer_ptr(); + } +protected: + /// Initialize the connection transport + /** + * Initialize the connection's transport component. + * + * @param handler The `init_handler` to call when initialization is done + */ + void init(init_handler handler) { + m_alog.write(log::alevel::devel,"stub connection init"); + handler(make_error_code(error::not_implemented)); + } + + /// Initiate an async_read for at least num_bytes bytes into buf + /** + * Initiates an async_read request for at least num_bytes bytes. The input + * will be read into buf. A maximum of len bytes will be input. When the + * operation is complete, handler will be called with the status and number + * of bytes read. + * + * This method may or may not call handler from within the initial call. The + * application should be prepared to accept either. + * + * The application should never call this method a second time before it has + * been called back for the first read. If this is done, the second read + * will be called back immediately with a double_read error. + * + * If num_bytes or len are zero handler will be called back immediately + * indicating success. + * + * @param num_bytes Don't call handler until at least this many bytes have + * been read. + * @param buf The buffer to read bytes into + * @param len The size of buf. At maximum, this many bytes will be read. + * @param handler The callback to invoke when the operation is complete or + * ends in an error + */ + void async_read_at_least(size_t num_bytes, char * buf, size_t len, + read_handler handler) + { + m_alog.write(log::alevel::devel, "stub_con async_read_at_least"); + handler(make_error_code(error::not_implemented), 0); + } + + /// Asyncronous Transport Write + /** + * Write len bytes in buf to the output stream. Call handler to report + * success or failure. handler may or may not be called during async_write, + * but it must be safe for this to happen. + * + * Will return 0 on success. + * + * @param buf buffer to read bytes from + * @param len number of bytes to write + * @param handler Callback to invoke with operation status. + */ + void async_write(char const * buf, size_t len, write_handler handler) { + m_alog.write(log::alevel::devel,"stub_con async_write"); + handler(make_error_code(error::not_implemented)); + } + + /// Asyncronous Transport Write (scatter-gather) + /** + * Write a sequence of buffers to the output stream. Call handler to report + * success or failure. handler may or may not be called during async_write, + * but it must be safe for this to happen. + * + * Will return 0 on success. + * + * @param bufs vector of buffers to write + * @param handler Callback to invoke with operation status. + */ + void async_write(std::vector<buffer> const & bufs, write_handler handler) { + m_alog.write(log::alevel::devel,"stub_con async_write buffer list"); + handler(make_error_code(error::not_implemented)); + } + + /// Set Connection Handle + /** + * @param hdl The new handle + */ + void set_handle(connection_hdl hdl) {} + + /// Call given handler back within the transport's event system (if present) + /** + * Invoke a callback within the transport's event system if it has one. If + * it doesn't, the handler will be invoked immediately before this function + * returns. + * + * @param handler The callback to invoke + * + * @return Whether or not the transport was able to register the handler for + * callback. + */ + lib::error_code dispatch(dispatch_handler handler) { + handler(); + return lib::error_code(); + } + + /// Perform cleanup on socket shutdown_handler + /** + * @param h The `shutdown_handler` to call back when complete + */ + void async_shutdown(shutdown_handler handler) { + handler(lib::error_code()); + } +private: + // member variables! + alog_type & m_alog; + elog_type & m_elog; +}; + + +} // namespace stub +} // namespace transport +} // namespace websocketpp + +#endif // WEBSOCKETPP_TRANSPORT_STUB_CON_HPP |