NetworkSocketAPI / NetworkSocketAPI

Base class for IP Based Networking Libraries

Dependencies:   DnsQuery

Dependents:   TempTower BSDInterfaceTests HelloBSDInterface ESP8266InterfaceTests ... more

For a complete getting started guide see the wiki...

Network Socket API

The Network Socket API provides a common interface for using sockets on network devices. The API provides a simple class-based interface that should be familiar to users experienced with other socket APIs. Additionally, the API provides a simple interface for implementing network devices, making it easy to connect hardware agnostic programs to new devices.

Network Interfaces

The NetworkInterface provides an abstract class for network devices that support sockets. Devices should provide a DeviceInterface class that inherits this interface and adds implementation specific methods for using the device. A NetworkInterface must be provided to a Socket constructor to open a socket on the interface. Currently two subclasses are defined for common devices, EthernetInterface and WiFiInterface.

Sockets

The Socket class is used for managing network sockets. Once opened, the socket provides a pipe through which data can sent and recieved to a specific endpoint. The socket class can be instantiated as either a TCPSocket or a UDPSocket which defines the protocol used for the connection.

UDPSocket.h@80:9c6673c93082, 2016-04-05 (annotated)

Committer:
Christopher Haster
Date:
Tue Apr 05 12:02:56 2016 -0500
Revision:
80:9c6673c93082
Parent:
79:43a7e8c0d6cc
Child:
81:1600369a29dd
Added support for DNS resolution

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Christopher Haster 78:0914f9b9b24b 1 /* Socket
Christopher Haster 78:0914f9b9b24b 2 * Copyright (c) 2015 ARM Limited
Christopher Haster 72:6a8b52ee83ed 3 *
Christopher Haster 78:0914f9b9b24b 4 * Licensed under the Apache License, Version 2.0 (the "License");
Christopher Haster 78:0914f9b9b24b 5 * you may not use this file except in compliance with the License.
Christopher Haster 78:0914f9b9b24b 6 * You may obtain a copy of the License at
Christopher Haster 72:6a8b52ee83ed 7 *
Christopher Haster 78:0914f9b9b24b 8 * http://www.apache.org/licenses/LICENSE-2.0
Christopher Haster 72:6a8b52ee83ed 9 *
Christopher Haster 78:0914f9b9b24b 10 * Unless required by applicable law or agreed to in writing, software
Christopher Haster 78:0914f9b9b24b 11 * distributed under the License is distributed on an "AS IS" BASIS,
Christopher Haster 78:0914f9b9b24b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Christopher Haster 78:0914f9b9b24b 13 * See the License for the specific language governing permissions and
Christopher Haster 78:0914f9b9b24b 14 * limitations under the License.
Christopher Haster 72:6a8b52ee83ed 15 */
Christopher Haster 72:6a8b52ee83ed 16
Christopher Haster 72:6a8b52ee83ed 17 #ifndef UDPSOCKET_H
Christopher Haster 72:6a8b52ee83ed 18 #define UDPSOCKET_H
Christopher Haster 72:6a8b52ee83ed 19
Christopher Haster 72:6a8b52ee83ed 20 #include "Socket.h"
Christopher Haster 77:b66a6984ed2d 21 #include "NetworkInterface.h"
Christopher Haster 72:6a8b52ee83ed 22
Christopher Haster 72:6a8b52ee83ed 23 /**
Christopher Haster 72:6a8b52ee83ed 24 UDP Socket
Christopher Haster 72:6a8b52ee83ed 25 */
Christopher Haster 72:6a8b52ee83ed 26 class UDPSocket : public Socket {
Christopher Haster 72:6a8b52ee83ed 27 public:
Christopher Haster 72:6a8b52ee83ed 28 /** UDPSocket lifetime
Christopher Haster 72:6a8b52ee83ed 29 */
Christopher Haster 77:b66a6984ed2d 30 UDPSocket(NetworkInterface *iface);
Christopher Haster 72:6a8b52ee83ed 31
Christopher Haster 72:6a8b52ee83ed 32 /** Bind a UDP Server Socket to a specific port
Christopher Haster 72:6a8b52ee83ed 33 \param port The port to listen for incoming connections on
Christopher Haster 72:6a8b52ee83ed 34 \return 0 on success, negative on failure.
Christopher Haster 72:6a8b52ee83ed 35 */
Christopher Haster 79:43a7e8c0d6cc 36 int bind(uint16_t port);
Christopher Haster 75:dea0cdb42241 37
Christopher Haster 72:6a8b52ee83ed 38 /** Send a packet to a remote endpoint
Christopher Haster 75:dea0cdb42241 39 \param address The remote SocketAddress
Christopher Haster 72:6a8b52ee83ed 40 \param data The packet to be sent
Christopher Haster 72:6a8b52ee83ed 41 \param size The length of the packet to be sent
Christopher Haster 74:ef2470ca328b 42 \return the number of written bytes on success, negative on failure
Christopher Haster 72:6a8b52ee83ed 43 */
Christopher Haster 80:9c6673c93082 44 int sendto(const SocketAddress &address, const void *data, unsigned size);
Christopher Haster 75:dea0cdb42241 45
Christopher Haster 72:6a8b52ee83ed 46 /** Receive a packet from a remote endpoint
Christopher Haster 75:dea0cdb42241 47 \param address Destination for the remote SocketAddress or null
Christopher Haster 72:6a8b52ee83ed 48 \param buffer The buffer for storing the incoming packet data
Christopher Haster 72:6a8b52ee83ed 49 If a packet is too long to fit in the supplied buffer,
Christopher Haster 72:6a8b52ee83ed 50 excess bytes are discarded
Christopher Haster 72:6a8b52ee83ed 51 \param size The length of the buffer
Christopher Haster 72:6a8b52ee83ed 52 \return the number of received bytes on success, negative on failure
Christopher Haster 72:6a8b52ee83ed 53 */
Christopher Haster 75:dea0cdb42241 54 int recvfrom(SocketAddress *address, void *buffer, unsigned size);
Christopher Haster 73:968f7b32278f 55
Christopher Haster 73:968f7b32278f 56 /** Register a callback on when send is ready
Christopher Haster 73:968f7b32278f 57 \param callback Function to call when send will succeed, may be called in
Christopher Haster 73:968f7b32278f 58 interrupt context.
Christopher Haster 73:968f7b32278f 59 */
Christopher Haster 79:43a7e8c0d6cc 60 void attach_send(mbed::FuncPtr<void()> callback);
Christopher Haster 73:968f7b32278f 61
Christopher Haster 73:968f7b32278f 62 /** Register a callback on when recv is ready
Christopher Haster 73:968f7b32278f 63 \param callback Function to call when recv will succeed, may be called in
Christopher Haster 73:968f7b32278f 64 interrupt context.
Christopher Haster 73:968f7b32278f 65 */
Christopher Haster 79:43a7e8c0d6cc 66 void attach_recv(mbed::FuncPtr<void()> callback);
Christopher Haster 72:6a8b52ee83ed 67 };
Christopher Haster 72:6a8b52ee83ed 68
Christopher Haster 72:6a8b52ee83ed 69 #endif