/* Socket
 * Copyright (c) 2015 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef TCPSERVER_H
#define TCPSERVER_H

#include "Socket.h"
#include "TCPSocket.h"
#include "NetworkInterface.h"

/** TCP Server.
  */
class TCPServer : public Socket {
public:
    /** TCP Server lifetime
    */
    TCPServer(NetworkInterface *iface);
    virtual ~TCPServer();
    
    /** Bind a socket to a specific port
    \param port     The port to listen for incoming connections on
    \return         0 on success, negative on failure
    */
    int bind(uint16_t port);
    
    /** Start listening for incoming connections
    \param backlog  Number of pending connections that can be queued up at any
                    one time [Default: 1]
    \return         0 on success, negative on failure
    */
    int listen(int backlog=1);
    
    /** Accept a new connection.
    \param socket   A TCPSocket instance that will handle the incoming connection.
    \return         0 on success, negative on failure.
    */
    int accept(TCPSocket *connection);

    /** Register a callback on when a new connection is ready
    \param callback Function to call when accept will succeed, may be called in
                    interrupt context.
    */
    void attach_accept(mbed::FuncPtr<void()> callback);

    template <typename T, typename M>
    void attach_accept(T *tptr, M mptr) {
        attach_accept(mbed::FuncPtr<void()>(tptr, mptr));
    }

private:
    mbed::FuncPtr<void()> _accept_cb;
};

#endif