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.
Socket.cpp@93:65a9f84862f0, 2016-04-19 (annotated)
- Committer:
- Christopher Haster
- Date:
- Tue Apr 19 18:23:42 2016 -0500
- Revision:
- 93:65a9f84862f0
- Parent:
- 92:dd5f19874adf
- Child:
- 98:0f614f1d0398
Renamed NetworkInterface create/destroy methods to match Socket methods
- socket_create -> socket_open
- socket_destroy -> socket_close
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Christopher Haster |
89:b1d417383c0d | 1 | /* Socket |
Christopher Haster |
89:b1d417383c0d | 2 | * Copyright (c) 2015 ARM Limited |
Christopher Haster |
89:b1d417383c0d | 3 | * |
Christopher Haster |
89:b1d417383c0d | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
Christopher Haster |
89:b1d417383c0d | 5 | * you may not use this file except in compliance with the License. |
Christopher Haster |
89:b1d417383c0d | 6 | * You may obtain a copy of the License at |
Christopher Haster |
89:b1d417383c0d | 7 | * |
Christopher Haster |
89:b1d417383c0d | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
Christopher Haster |
89:b1d417383c0d | 9 | * |
Christopher Haster |
89:b1d417383c0d | 10 | * Unless required by applicable law or agreed to in writing, software |
Christopher Haster |
89:b1d417383c0d | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
Christopher Haster |
89:b1d417383c0d | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
Christopher Haster |
89:b1d417383c0d | 13 | * See the License for the specific language governing permissions and |
Christopher Haster |
89:b1d417383c0d | 14 | * limitations under the License. |
Christopher Haster |
89:b1d417383c0d | 15 | */ |
Christopher Haster |
89:b1d417383c0d | 16 | |
Christopher Haster |
89:b1d417383c0d | 17 | #include "Socket.h" |
Christopher Haster |
89:b1d417383c0d | 18 | |
Christopher Haster |
90:0a988e4abb72 | 19 | Socket::Socket() |
Christopher Haster |
90:0a988e4abb72 | 20 | : _iface(0) |
Christopher Haster |
90:0a988e4abb72 | 21 | , _socket(0) |
Christopher Haster |
89:b1d417383c0d | 22 | , _blocking(true) |
Christopher Haster |
89:b1d417383c0d | 23 | , _timeout(0) |
Christopher Haster |
89:b1d417383c0d | 24 | { |
Christopher Haster |
89:b1d417383c0d | 25 | } |
Christopher Haster |
89:b1d417383c0d | 26 | |
Christopher Haster |
89:b1d417383c0d | 27 | Socket::~Socket() |
Christopher Haster |
89:b1d417383c0d | 28 | { |
Christopher Haster |
89:b1d417383c0d | 29 | if (_socket) { |
Christopher Haster |
91:cad29ce6a01c | 30 | close(); |
Christopher Haster |
89:b1d417383c0d | 31 | } |
Christopher Haster |
89:b1d417383c0d | 32 | } |
Christopher Haster |
89:b1d417383c0d | 33 | |
Christopher Haster |
90:0a988e4abb72 | 34 | int Socket::open(NetworkInterface *iface, nsapi_protocol_t proto) |
Christopher Haster |
90:0a988e4abb72 | 35 | { |
Christopher Haster |
90:0a988e4abb72 | 36 | _iface = iface; |
Christopher Haster |
93:65a9f84862f0 | 37 | |
Christopher Haster |
93:65a9f84862f0 | 38 | void *socket; |
Christopher Haster |
93:65a9f84862f0 | 39 | int err = _iface->socket_open(&socket, proto); |
Christopher Haster |
93:65a9f84862f0 | 40 | if (err) { |
Christopher Haster |
93:65a9f84862f0 | 41 | return err; |
Christopher Haster |
93:65a9f84862f0 | 42 | } |
Christopher Haster |
93:65a9f84862f0 | 43 | |
Christopher Haster |
93:65a9f84862f0 | 44 | _socket = socket; |
Christopher Haster |
92:dd5f19874adf | 45 | _iface->socket_attach(_socket, &Socket::thunk, this); |
Christopher Haster |
93:65a9f84862f0 | 46 | |
Christopher Haster |
93:65a9f84862f0 | 47 | return 0; |
Christopher Haster |
90:0a988e4abb72 | 48 | } |
Christopher Haster |
90:0a988e4abb72 | 49 | |
Christopher Haster |
91:cad29ce6a01c | 50 | int Socket::close() |
Christopher Haster |
90:0a988e4abb72 | 51 | { |
Christopher Haster |
90:0a988e4abb72 | 52 | if (!_socket) { |
Christopher Haster |
90:0a988e4abb72 | 53 | return 0; |
Christopher Haster |
90:0a988e4abb72 | 54 | } |
Christopher Haster |
90:0a988e4abb72 | 55 | |
Christopher Haster |
93:65a9f84862f0 | 56 | void *socket = _socket; |
Christopher Haster |
93:65a9f84862f0 | 57 | _socket = 0; |
Christopher Haster |
93:65a9f84862f0 | 58 | return _iface->socket_close(socket); |
Christopher Haster |
90:0a988e4abb72 | 59 | } |
Christopher Haster |
90:0a988e4abb72 | 60 | |
Christopher Haster |
89:b1d417383c0d | 61 | void Socket::set_blocking(bool blocking) |
Christopher Haster |
89:b1d417383c0d | 62 | { |
Christopher Haster |
89:b1d417383c0d | 63 | _blocking = blocking; |
Christopher Haster |
89:b1d417383c0d | 64 | } |
Christopher Haster |
89:b1d417383c0d | 65 | |
Christopher Haster |
89:b1d417383c0d | 66 | void Socket::set_timeout(unsigned timeout) |
Christopher Haster |
89:b1d417383c0d | 67 | { |
Christopher Haster |
89:b1d417383c0d | 68 | _timeout = timeout; |
Christopher Haster |
89:b1d417383c0d | 69 | } |
Christopher Haster |
89:b1d417383c0d | 70 | |
Christopher Haster |
89:b1d417383c0d | 71 | int Socket::set_option(int optname, const void *optval, unsigned int optlen) |
Christopher Haster |
89:b1d417383c0d | 72 | { |
Christopher Haster |
89:b1d417383c0d | 73 | if (!_socket) { |
Christopher Haster |
89:b1d417383c0d | 74 | return NSAPI_ERROR_NO_SOCKET; |
Christopher Haster |
89:b1d417383c0d | 75 | } |
Christopher Haster |
89:b1d417383c0d | 76 | |
Christopher Haster |
89:b1d417383c0d | 77 | return _iface->socket_set_option(_socket, optname, optval, optlen); |
Christopher Haster |
89:b1d417383c0d | 78 | } |
Christopher Haster |
89:b1d417383c0d | 79 | |
Christopher Haster |
89:b1d417383c0d | 80 | int Socket::get_option(int optname, void *optval, unsigned int *optlen) |
Christopher Haster |
89:b1d417383c0d | 81 | { |
Christopher Haster |
89:b1d417383c0d | 82 | if (!_socket) { |
Christopher Haster |
89:b1d417383c0d | 83 | return NSAPI_ERROR_NO_SOCKET; |
Christopher Haster |
89:b1d417383c0d | 84 | } |
Christopher Haster |
89:b1d417383c0d | 85 | |
Christopher Haster |
89:b1d417383c0d | 86 | return _iface->socket_get_option(_socket, optname, optval, optlen); |
Christopher Haster |
89:b1d417383c0d | 87 | } |
Christopher Haster |
89:b1d417383c0d | 88 | |
Christopher Haster |
92:dd5f19874adf | 89 | void Socket::thunk(void *data) |
Christopher Haster |
89:b1d417383c0d | 90 | { |
Christopher Haster |
92:dd5f19874adf | 91 | Socket *self = (Socket *)data; |
Christopher Haster |
92:dd5f19874adf | 92 | if (self->_callback) { |
Christopher Haster |
92:dd5f19874adf | 93 | self->_callback(); |
Christopher Haster |
92:dd5f19874adf | 94 | } |
Christopher Haster |
89:b1d417383c0d | 95 | } |
Christopher Haster |
92:dd5f19874adf | 96 | |
Christopher Haster |
92:dd5f19874adf | 97 | void Socket::attach(FunctionPointer callback) |
Christopher Haster |
92:dd5f19874adf | 98 | { |
Christopher Haster |
92:dd5f19874adf | 99 | _callback = callback; |
Christopher Haster |
92:dd5f19874adf | 100 | } |