Squashed 'src/websocketpp/' content from commit 875d420

git-subtree-dir: src/websocketpp
git-subtree-split: 875d420952d2c47d38de15952a401f00773cdffc

websocketpp/message_buffer/alloc.hpp

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+/*
+ * 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_MESSAGE_BUFFER_ALLOC_HPP
+#define WEBSOCKETPP_MESSAGE_BUFFER_ALLOC_HPP
+
+#include <websocketpp/common/memory.hpp>
+#include <websocketpp/frame.hpp>
+
+namespace websocketpp {
+namespace message_buffer {
+namespace alloc {
+
+/// A connection message manager that allocates a new message for each
+/// request.
+template <typename message>
+class con_msg_manager
+  : public lib::enable_shared_from_this<con_msg_manager<message> >
+{
+public:
+    typedef con_msg_manager<message> type;
+    typedef lib::shared_ptr<con_msg_manager> ptr;
+    typedef lib::weak_ptr<con_msg_manager> weak_ptr;
+
+    typedef typename message::ptr message_ptr;
+
+    /// Get an empty message buffer
+    /**
+     * @return A shared pointer to an empty new message
+     */
+    message_ptr get_message() {
+        return message_ptr(lib::make_shared<message>(type::shared_from_this()));
+    }
+
+    /// Get a message buffer with specified size and opcode
+    /**
+     * @param op The opcode to use
+     * @param size Minimum size in bytes to request for the message payload.
+     *
+     * @return A shared pointer to a new message with specified size.
+     */
+    message_ptr get_message(frame::opcode::value op,size_t size) {
+        return message_ptr(lib::make_shared<message>(type::shared_from_this(),op,size));
+    }
+
+    /// Recycle a message
+    /**
+     * This method shouldn't be called. If it is, return false to indicate an
+     * error. The rest of the method recycle chain should notice this and free
+     * the memory.
+     *
+     * @param msg The message to be recycled.
+     *
+     * @return true if the message was successfully recycled, false otherwse.
+     */
+    bool recycle(message *) {
+        return false;
+    }
+};
+
+/// An endpoint message manager that allocates a new manager for each
+/// connection.
+template <typename con_msg_manager>
+class endpoint_msg_manager {
+public:
+    typedef typename con_msg_manager::ptr con_msg_man_ptr;
+
+    /// Get a pointer to a connection message manager
+    /**
+     * @return A pointer to the requested connection message manager.
+     */
+    con_msg_man_ptr get_manager() const {
+        return con_msg_man_ptr(lib::make_shared<con_msg_manager>());
+    }
+};
+
+} // namespace alloc
+} // namespace message_buffer
+} // namespace websocketpp
+
+#endif // WEBSOCKETPP_MESSAGE_BUFFER_ALLOC_HPP