DongEun Koak / NetworkSocketAPI

NetworkSocketAPI

Dependencies:   DnsQuery

Dependents:   HelloWizFi250Interface

Fork of NetworkSocketAPI by NetworkSocketAPI

TCPServer.cpp@82:97d166c4a193, 2016-04-05 (annotated)

Committer:
Christopher Haster
Date:
Tue Apr 05 13:09:43 2016 -0500
Revision:
82:97d166c4a193
Parent:
81:1600369a29dd
Child:
87:94e2cf3a06be
Added temporary polling for blocking sockets

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 "TCPServer.h"
Christopher Haster 82:97d166c4a193 18 #include "Timer.h"
Christopher Haster 79:43a7e8c0d6cc 19
Christopher Haster 79:43a7e8c0d6cc 20 TCPServer::TCPServer(NetworkInterface *iface)
Christopher Haster 79:43a7e8c0d6cc 21 : Socket(iface, NetworkInterface::TCP)
Christopher Haster 79:43a7e8c0d6cc 22 {
Christopher Haster 79:43a7e8c0d6cc 23 }
Christopher Haster 79:43a7e8c0d6cc 24
Christopher Haster 79:43a7e8c0d6cc 25 int TCPServer::bind(uint16_t port)
Christopher Haster 79:43a7e8c0d6cc 26 {
Christopher Haster 79:43a7e8c0d6cc 27 if (!_socket) {
Christopher Haster 79:43a7e8c0d6cc 28 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 79:43a7e8c0d6cc 29 }
Christopher Haster 79:43a7e8c0d6cc 30
Christopher Haster 79:43a7e8c0d6cc 31 return _iface->socket_bind(_socket, port);
Christopher Haster 79:43a7e8c0d6cc 32 }
Christopher Haster 79:43a7e8c0d6cc 33
Christopher Haster 79:43a7e8c0d6cc 34 int TCPServer::listen(int backlog)
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_listen(_socket, backlog);
Christopher Haster 79:43a7e8c0d6cc 41 }
Christopher Haster 79:43a7e8c0d6cc 42
Christopher Haster 79:43a7e8c0d6cc 43 int TCPServer::accept(TCPSocket *connection)
Christopher Haster 79:43a7e8c0d6cc 44 {
Christopher Haster 82:97d166c4a193 45 mbed::Timer timer;
Christopher Haster 82:97d166c4a193 46 timer.start();
Christopher Haster 79:43a7e8c0d6cc 47
Christopher Haster 79:43a7e8c0d6cc 48 void *socket = connection->_socket;
Christopher Haster 79:43a7e8c0d6cc 49 connection->_socket = 0;
Christopher Haster 79:43a7e8c0d6cc 50 _iface->socket_destroy(socket);
Christopher Haster 79:43a7e8c0d6cc 51
Christopher Haster 82:97d166c4a193 52 while (true) {
Christopher Haster 82:97d166c4a193 53 if (!_socket) {
Christopher Haster 82:97d166c4a193 54 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 82:97d166c4a193 55 }
Christopher Haster 82:97d166c4a193 56
Christopher Haster 82:97d166c4a193 57 int err = _iface->socket_accept(_socket, &socket);
Christopher Haster 82:97d166c4a193 58
Christopher Haster 82:97d166c4a193 59 if (err > 0) {
Christopher Haster 82:97d166c4a193 60 connection->_socket = socket;
Christopher Haster 82:97d166c4a193 61 }
Christopher Haster 82:97d166c4a193 62
Christopher Haster 82:97d166c4a193 63 if (err != NSAPI_ERROR_WOULD_BLOCK || !_blocking ||
Christopher Haster 82:97d166c4a193 64 (_timeout && timer.read_ms() > _timeout)) {
Christopher Haster 82:97d166c4a193 65 return err;
Christopher Haster 82:97d166c4a193 66 }
Christopher Haster 79:43a7e8c0d6cc 67 }
Christopher Haster 79:43a7e8c0d6cc 68 }
Christopher Haster 81:1600369a29dd 69
Christopher Haster 81:1600369a29dd 70
Christopher Haster 81:1600369a29dd 71 void TCPServer::attach_accept(mbed::FuncPtr<void()> callback)
Christopher Haster 81:1600369a29dd 72 {
Christopher Haster 81:1600369a29dd 73 _accept_cb = callback;
Christopher Haster 81:1600369a29dd 74
Christopher Haster 81:1600369a29dd 75 if (_socket && _accept_cb) {
Christopher Haster 81:1600369a29dd 76 return _iface->socket_attach_accept(_socket, Socket::thunk, &_accept_cb);
Christopher Haster 81:1600369a29dd 77 } else if (_socket) {
Christopher Haster 81:1600369a29dd 78 return _iface->socket_attach_accept(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 79 }
Christopher Haster 81:1600369a29dd 80 }
Christopher Haster 81:1600369a29dd 81
Christopher Haster 81:1600369a29dd 82 TCPServer::~TCPServer()
Christopher Haster 81:1600369a29dd 83 {
Christopher Haster 81:1600369a29dd 84 if (_socket && _accept_cb) {
Christopher Haster 81:1600369a29dd 85 _iface->socket_attach_accept(_socket, 0, 0);
Christopher Haster 81:1600369a29dd 86 }
Christopher Haster 81:1600369a29dd 87 }