DongEun Koak / NetworkSocketAPI

NetworkSocketAPI

Dependencies:   DnsQuery

Dependents:   HelloWizFi250Interface

Fork of NetworkSocketAPI by NetworkSocketAPI

TCPServer.cpp@92:dd5f19874adf, 2016-04-19 (annotated)

Committer:
Christopher Haster
Date:
Tue Apr 19 18:23:29 2016 -0500
Revision:
92:dd5f19874adf
Parent:
90:0a988e4abb72
Child:
93:65a9f84862f0
Move to single state-change interrupt



Pros

- Easier to implement

- More similar to SIGIO in BDS sockets



Cons

- Less information, but this information had a high risk of being

  faulty/spurious

Who changed what in which revision?

UserRevisionLine numberNew 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 "TCPServer.h"
Christopher Haster 89:b1d417383c0d 18 #include "Timer.h"
Christopher Haster 89:b1d417383c0d 19
Christopher Haster 90:0a988e4abb72 20 TCPServer::TCPServer()
Christopher Haster 90:0a988e4abb72 21 {
Christopher Haster 90:0a988e4abb72 22 }
Christopher Haster 90:0a988e4abb72 23
Christopher Haster 89:b1d417383c0d 24 TCPServer::TCPServer(NetworkInterface *iface)
Christopher Haster 89:b1d417383c0d 25 {
Christopher Haster 90:0a988e4abb72 26 open(iface);
Christopher Haster 90:0a988e4abb72 27 }
Christopher Haster 90:0a988e4abb72 28
Christopher Haster 90:0a988e4abb72 29 int TCPServer::open(NetworkInterface *iface)
Christopher Haster 90:0a988e4abb72 30 {
Christopher Haster 90:0a988e4abb72 31 return Socket::open(iface, NSAPI_TCP);
Christopher Haster 89:b1d417383c0d 32 }
Christopher Haster 89:b1d417383c0d 33
Christopher Haster 89:b1d417383c0d 34 int TCPServer::bind(uint16_t port)
Christopher Haster 89:b1d417383c0d 35 {
Christopher Haster 89:b1d417383c0d 36 if (!_socket) {
Christopher Haster 89:b1d417383c0d 37 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 89:b1d417383c0d 38 }
Christopher Haster 89:b1d417383c0d 39
Christopher Haster 89:b1d417383c0d 40 return _iface->socket_bind(_socket, port);
Christopher Haster 89:b1d417383c0d 41 }
Christopher Haster 89:b1d417383c0d 42
Christopher Haster 89:b1d417383c0d 43 int TCPServer::listen(int backlog)
Christopher Haster 89:b1d417383c0d 44 {
Christopher Haster 89:b1d417383c0d 45 if (!_socket) {
Christopher Haster 89:b1d417383c0d 46 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 89:b1d417383c0d 47 }
Christopher Haster 89:b1d417383c0d 48
Christopher Haster 89:b1d417383c0d 49 return _iface->socket_listen(_socket, backlog);
Christopher Haster 89:b1d417383c0d 50 }
Christopher Haster 89:b1d417383c0d 51
Christopher Haster 89:b1d417383c0d 52 int TCPServer::accept(TCPSocket *connection)
Christopher Haster 89:b1d417383c0d 53 {
Christopher Haster 89:b1d417383c0d 54 mbed::Timer timer;
Christopher Haster 89:b1d417383c0d 55 timer.start();
Christopher Haster 89:b1d417383c0d 56
Christopher Haster 90:0a988e4abb72 57 if (connection->_socket) {
Christopher Haster 90:0a988e4abb72 58 connection->close();
Christopher Haster 90:0a988e4abb72 59 }
Christopher Haster 89:b1d417383c0d 60
Christopher Haster 89:b1d417383c0d 61 while (true) {
Christopher Haster 89:b1d417383c0d 62 if (!_socket) {
Christopher Haster 89:b1d417383c0d 63 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 89:b1d417383c0d 64 }
Christopher Haster 89:b1d417383c0d 65
Christopher Haster 90:0a988e4abb72 66 void *socket;
Christopher Haster 89:b1d417383c0d 67 int err = _iface->socket_accept(_socket, &socket);
Christopher Haster 89:b1d417383c0d 68
Christopher Haster 89:b1d417383c0d 69 if (err > 0) {
Christopher Haster 89:b1d417383c0d 70 connection->_socket = socket;
Christopher Haster 89:b1d417383c0d 71 }
Christopher Haster 89:b1d417383c0d 72
Christopher Haster 89:b1d417383c0d 73 if (err != NSAPI_ERROR_WOULD_BLOCK || !_blocking ||
Christopher Haster 89:b1d417383c0d 74 (_timeout && timer.read_ms() > _timeout)) {
Christopher Haster 89:b1d417383c0d 75 return err;
Christopher Haster 89:b1d417383c0d 76 }
Christopher Haster 89:b1d417383c0d 77 }
Christopher Haster 89:b1d417383c0d 78 }