DongEun Koak / NetworkSocketAPI

NetworkSocketAPI

Dependencies:   DnsQuery

Dependents:   HelloWizFi250Interface

Fork of NetworkSocketAPI by NetworkSocketAPI

TCPSocket.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 "TCPSocket.h"
Christopher Haster 82:97d166c4a193 18 #include "Timer.h"
Christopher Haster 79:43a7e8c0d6cc 19
Christopher Haster 90:0a988e4abb72 20 TCPSocket::TCPSocket()
Christopher Haster 90:0a988e4abb72 21 {
Christopher Haster 90:0a988e4abb72 22 }
Christopher Haster 90:0a988e4abb72 23
Christopher Haster 79:43a7e8c0d6cc 24 TCPSocket::TCPSocket(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 TCPSocket::open(NetworkInterface *iface)
Christopher Haster 90:0a988e4abb72 30 {
Christopher Haster 90:0a988e4abb72 31 return Socket::open(iface, NSAPI_TCP);
Christopher Haster 79:43a7e8c0d6cc 32 }
Christopher Haster 79:43a7e8c0d6cc 33
Christopher Haster 80:9c6673c93082 34 int TCPSocket::connect(const SocketAddress &addr)
Christopher Haster 79:43a7e8c0d6cc 35 {
Christopher Haster 79:43a7e8c0d6cc 36 if (!_socket) {
Christopher Haster 79:43a7e8c0d6cc 37 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 79:43a7e8c0d6cc 38 }
Christopher Haster 79:43a7e8c0d6cc 39
Christopher Haster 79:43a7e8c0d6cc 40 return _iface->socket_connect(_socket, addr);
Christopher Haster 79:43a7e8c0d6cc 41 }
Christopher Haster 79:43a7e8c0d6cc 42
Christopher Haster 79:43a7e8c0d6cc 43 int TCPSocket::connect(const char *host, uint16_t port)
Christopher Haster 79:43a7e8c0d6cc 44 {
Christopher Haster 80:9c6673c93082 45 SocketAddress addr(_iface, host, port);
Christopher Haster 79:43a7e8c0d6cc 46 if (!addr.get_ip_address()) {
Christopher Haster 79:43a7e8c0d6cc 47 return NSAPI_ERROR_DNS_FAILURE;
Christopher Haster 79:43a7e8c0d6cc 48 }
Christopher Haster 79:43a7e8c0d6cc 49
Christopher Haster 79:43a7e8c0d6cc 50 return connect(addr);
Christopher Haster 79:43a7e8c0d6cc 51 }
Christopher Haster 79:43a7e8c0d6cc 52
Christopher Haster 79:43a7e8c0d6cc 53 bool TCPSocket::is_connected()
Christopher Haster 79:43a7e8c0d6cc 54 {
Christopher Haster 79:43a7e8c0d6cc 55 return _socket && _iface->socket_is_connected(_socket);
Christopher Haster 79:43a7e8c0d6cc 56 }
Christopher Haster 79:43a7e8c0d6cc 57
Christopher Haster 79:43a7e8c0d6cc 58 int TCPSocket::send(const void *data, unsigned size)
Christopher Haster 79:43a7e8c0d6cc 59 {
Christopher Haster 82:97d166c4a193 60 mbed::Timer timer;
Christopher Haster 82:97d166c4a193 61 timer.start();
Christopher Haster 82:97d166c4a193 62
Christopher Haster 82:97d166c4a193 63 while (true) {
Christopher Haster 82:97d166c4a193 64 if (!_socket) {
Christopher Haster 82:97d166c4a193 65 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 82:97d166c4a193 66 }
Christopher Haster 82:97d166c4a193 67
Christopher Haster 82:97d166c4a193 68 int sent = _iface->socket_send(_socket, data, size);
Christopher Haster 82:97d166c4a193 69 if (sent != NSAPI_ERROR_WOULD_BLOCK || !_blocking ||
Christopher Haster 82:97d166c4a193 70 (_timeout && timer.read_ms() > _timeout)) {
Christopher Haster 82:97d166c4a193 71 return sent;
Christopher Haster 82:97d166c4a193 72 }
Christopher Haster 79:43a7e8c0d6cc 73 }
Christopher Haster 79:43a7e8c0d6cc 74 }
Christopher Haster 79:43a7e8c0d6cc 75
Christopher Haster 79:43a7e8c0d6cc 76 int TCPSocket::recv(void *data, unsigned size)
Christopher Haster 79:43a7e8c0d6cc 77 {
Christopher Haster 82:97d166c4a193 78 mbed::Timer timer;
Christopher Haster 82:97d166c4a193 79 timer.start();
Christopher Haster 82:97d166c4a193 80
Christopher Haster 82:97d166c4a193 81 while (true) {
Christopher Haster 82:97d166c4a193 82 if (!_socket) {
Christopher Haster 82:97d166c4a193 83 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 82:97d166c4a193 84 }
Christopher Haster 82:97d166c4a193 85
Christopher Haster 82:97d166c4a193 86 int recv = _iface->socket_recv(_socket, data, size);
Christopher Haster 82:97d166c4a193 87 if (recv != NSAPI_ERROR_WOULD_BLOCK || !_blocking ||
Christopher Haster 82:97d166c4a193 88 (_timeout && timer.read_ms() > _timeout)) {
Christopher Haster 82:97d166c4a193 89 return recv;
Christopher Haster 82:97d166c4a193 90 }
Christopher Haster 79:43a7e8c0d6cc 91 }
Christopher Haster 79:43a7e8c0d6cc 92 }
Christopher Haster 81:1600369a29dd 93
Christopher Haster 81:1600369a29dd 94
Christopher Haster 89:b1d417383c0d 95 void TCPSocket::attach_send(FunctionPointer callback)
Christopher Haster 81:1600369a29dd 96 {
Christopher Haster 81:1600369a29dd 97 _send_cb = callback;
Christopher Haster 81:1600369a29dd 98
Christopher Haster 81:1600369a29dd 99 if (_socket && _send_cb) {
Christopher Haster 81:1600369a29dd 100 return _iface->socket_attach_send(_socket, Socket::thunk, &_send_cb);
Christopher Haster 81:1600369a29dd 101 } else if (_socket) {
Christopher Haster 81:1600369a29dd 102 return _iface->socket_attach_send(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 103 }
Christopher Haster 81:1600369a29dd 104 }
Christopher Haster 81:1600369a29dd 105
Christopher Haster 89:b1d417383c0d 106 void TCPSocket::attach_recv(FunctionPointer callback)
Christopher Haster 81:1600369a29dd 107 {
Christopher Haster 81:1600369a29dd 108 _recv_cb = callback;
Christopher Haster 81:1600369a29dd 109
Christopher Haster 81:1600369a29dd 110 if (_socket && _recv_cb) {
Christopher Haster 81:1600369a29dd 111 return _iface->socket_attach_recv(_socket, Socket::thunk, &_recv_cb);
Christopher Haster 81:1600369a29dd 112 } else if (_socket) {
Christopher Haster 81:1600369a29dd 113 return _iface->socket_attach_recv(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 114 }
Christopher Haster 81:1600369a29dd 115 }
Christopher Haster 81:1600369a29dd 116
Christopher Haster 81:1600369a29dd 117 TCPSocket::~TCPSocket()
Christopher Haster 81:1600369a29dd 118 {
Christopher Haster 81:1600369a29dd 119 if (_socket && _send_cb) {
Christopher Haster 81:1600369a29dd 120 _iface->socket_attach_send(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 121 }
Christopher Haster 81:1600369a29dd 122
Christopher Haster 81:1600369a29dd 123 if (_socket && _recv_cb) {
Christopher Haster 81:1600369a29dd 124 _iface->socket_attach_recv(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 125 }
Christopher Haster 81:1600369a29dd 126 }