pefect / NetworkSocketAPI

ap

Dependencies:   DnsQuery

Dependents:   WizFi310_TCP_Echo_Server_Example

Fork of NetworkSocketAPI by NetworkSocketAPI

UDPSocket.cpp@90:0a988e4abb72, 2016-04-19 (annotated)

Committer:
Christopher Haster
Date:
Tue Apr 19 18:22:15 2016 -0500
Revision:
90:0a988e4abb72
Parent:
89:b1d417383c0d
Child:
92:dd5f19874adf
Add open call as alternative to passing NetworkInterface at construction



Pros

- Allows memory to be statically allocated

- Avoids issues with Thread creation before entering main

- Matches existing APIs such as FunctionPointer and Ticker



Cons

- Does not enforce passing a NetworkInterface

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Christopher Haster 79:43a7e8c0d6cc 1 /* Socket
Christopher Haster 79:43a7e8c0d6cc 2 * Copyright (c) 2015 ARM Limited
Christopher Haster 79:43a7e8c0d6cc 3 *
Christopher Haster 79:43a7e8c0d6cc 4 * Licensed under the Apache License, Version 2.0 (the "License");
Christopher Haster 79:43a7e8c0d6cc 5 * you may not use this file except in compliance with the License.
Christopher Haster 79:43a7e8c0d6cc 6 * You may obtain a copy of the License at
Christopher Haster 79:43a7e8c0d6cc 7 *
Christopher Haster 79:43a7e8c0d6cc 8 * http://www.apache.org/licenses/LICENSE-2.0
Christopher Haster 79:43a7e8c0d6cc 9 *
Christopher Haster 79:43a7e8c0d6cc 10 * Unless required by applicable law or agreed to in writing, software
Christopher Haster 79:43a7e8c0d6cc 11 * distributed under the License is distributed on an "AS IS" BASIS,
Christopher Haster 79:43a7e8c0d6cc 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Christopher Haster 79:43a7e8c0d6cc 13 * See the License for the specific language governing permissions and
Christopher Haster 79:43a7e8c0d6cc 14 * limitations under the License.
Christopher Haster 79:43a7e8c0d6cc 15 */
Christopher Haster 79:43a7e8c0d6cc 16
Christopher Haster 79:43a7e8c0d6cc 17 #include "UDPSocket.h"
Christopher Haster 82:97d166c4a193 18 #include "Timer.h"
Christopher Haster 79:43a7e8c0d6cc 19
Christopher Haster 90:0a988e4abb72 20 UDPSocket::UDPSocket()
Christopher Haster 90:0a988e4abb72 21 {
Christopher Haster 90:0a988e4abb72 22 }
Christopher Haster 90:0a988e4abb72 23
Christopher Haster 79:43a7e8c0d6cc 24 UDPSocket::UDPSocket(NetworkInterface *iface)
Christopher Haster 79:43a7e8c0d6cc 25 {
Christopher Haster 90:0a988e4abb72 26 open(iface);
Christopher Haster 90:0a988e4abb72 27 }
Christopher Haster 90:0a988e4abb72 28
Christopher Haster 90:0a988e4abb72 29 int UDPSocket::open(NetworkInterface *iface)
Christopher Haster 90:0a988e4abb72 30 {
Christopher Haster 90:0a988e4abb72 31 return Socket::open(iface, NSAPI_UDP);
Christopher Haster 79:43a7e8c0d6cc 32 }
Christopher Haster 79:43a7e8c0d6cc 33
Christopher Haster 79:43a7e8c0d6cc 34 int UDPSocket::bind(uint16_t port)
Christopher Haster 79:43a7e8c0d6cc 35 {
Christopher Haster 79:43a7e8c0d6cc 36 if (!_socket) {
geky 86:7ca9776b9cc0 37 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 79:43a7e8c0d6cc 38 }
Christopher Haster 79:43a7e8c0d6cc 39
Christopher Haster 79:43a7e8c0d6cc 40 return _iface->socket_bind(_socket, port);
Christopher Haster 79:43a7e8c0d6cc 41 }
Christopher Haster 79:43a7e8c0d6cc 42
Christopher Haster 80:9c6673c93082 43 int UDPSocket::sendto(const SocketAddress &address, const void *data, unsigned size)
Christopher Haster 79:43a7e8c0d6cc 44 {
Christopher Haster 82:97d166c4a193 45 mbed::Timer timer;
Christopher Haster 82:97d166c4a193 46 timer.start();
Christopher Haster 82:97d166c4a193 47
Christopher Haster 82:97d166c4a193 48 while (true) {
Christopher Haster 82:97d166c4a193 49 if (!_socket) {
Christopher Haster 82:97d166c4a193 50 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 82:97d166c4a193 51 }
Christopher Haster 82:97d166c4a193 52
Christopher Haster 82:97d166c4a193 53 int sent = _iface->socket_sendto(_socket, address, data, size);
Christopher Haster 82:97d166c4a193 54 if (sent != NSAPI_ERROR_WOULD_BLOCK || !_blocking ||
Christopher Haster 82:97d166c4a193 55 (_timeout && timer.read_ms() > _timeout)) {
Christopher Haster 82:97d166c4a193 56 return sent;
Christopher Haster 82:97d166c4a193 57 }
Christopher Haster 79:43a7e8c0d6cc 58 }
Christopher Haster 79:43a7e8c0d6cc 59 }
Christopher Haster 79:43a7e8c0d6cc 60
Christopher Haster 79:43a7e8c0d6cc 61 int UDPSocket::recvfrom(SocketAddress *address, void *buffer, unsigned size)
Christopher Haster 79:43a7e8c0d6cc 62 {
Christopher Haster 82:97d166c4a193 63 mbed::Timer timer;
Christopher Haster 82:97d166c4a193 64 timer.start();
Christopher Haster 82:97d166c4a193 65
Christopher Haster 82:97d166c4a193 66 while (true) {
Christopher Haster 82:97d166c4a193 67 if (!_socket) {
Christopher Haster 82:97d166c4a193 68 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 82:97d166c4a193 69 }
Christopher Haster 82:97d166c4a193 70
Christopher Haster 82:97d166c4a193 71 int recv = _iface->socket_recvfrom(_socket, address, buffer, size);
Christopher Haster 82:97d166c4a193 72 if (recv != NSAPI_ERROR_WOULD_BLOCK || !_blocking ||
Christopher Haster 82:97d166c4a193 73 (_timeout && timer.read_ms() > _timeout)) {
Christopher Haster 82:97d166c4a193 74 return recv;
Christopher Haster 82:97d166c4a193 75 }
Christopher Haster 79:43a7e8c0d6cc 76 }
Christopher Haster 79:43a7e8c0d6cc 77 }
Christopher Haster 81:1600369a29dd 78
Christopher Haster 81:1600369a29dd 79
Christopher Haster 89:b1d417383c0d 80 void UDPSocket::attach_send(FunctionPointer callback)
Christopher Haster 81:1600369a29dd 81 {
Christopher Haster 81:1600369a29dd 82 _send_cb = callback;
Christopher Haster 81:1600369a29dd 83 if (_socket && _send_cb) {
Christopher Haster 81:1600369a29dd 84 return _iface->socket_attach_send(_socket, Socket::thunk, &_send_cb);
Christopher Haster 81:1600369a29dd 85 } else if (_socket) {
Christopher Haster 81:1600369a29dd 86 return _iface->socket_attach_send(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 87 }
Christopher Haster 81:1600369a29dd 88 }
Christopher Haster 81:1600369a29dd 89
Christopher Haster 89:b1d417383c0d 90 void UDPSocket::attach_recv(FunctionPointer callback)
Christopher Haster 81:1600369a29dd 91 {
Christopher Haster 81:1600369a29dd 92 _recv_cb = callback;
Christopher Haster 81:1600369a29dd 93 if (_socket && _recv_cb) {
Christopher Haster 81:1600369a29dd 94 return _iface->socket_attach_recv(_socket, Socket::thunk, &_recv_cb);
Christopher Haster 81:1600369a29dd 95 } else if (_socket) {
Christopher Haster 81:1600369a29dd 96 return _iface->socket_attach_recv(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 97 }
Christopher Haster 81:1600369a29dd 98 }
Christopher Haster 81:1600369a29dd 99
Christopher Haster 81:1600369a29dd 100 UDPSocket::~UDPSocket()
Christopher Haster 81:1600369a29dd 101 {
Christopher Haster 81:1600369a29dd 102 if (_socket && _send_cb) {
Christopher Haster 81:1600369a29dd 103 _iface->socket_attach_send(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 104 }
Christopher Haster 81:1600369a29dd 105
Christopher Haster 81:1600369a29dd 106 if (_socket && _recv_cb) {
Christopher Haster 81:1600369a29dd 107 _iface->socket_attach_recv(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 108 }
Christopher Haster 81:1600369a29dd 109 }