DongEun Koak / NetworkSocketAPI

NetworkSocketAPI

Dependencies:   DnsQuery

Dependents:   HelloWizFi250Interface

Fork of NetworkSocketAPI by NetworkSocketAPI

UDPSocket.cpp@127:086a648760a3, 2016-08-30 (annotated)

Committer:
kaizen
Date:
Tue Aug 30 02:00:24 2016 +0000
Revision:
127:086a648760a3
Parent:
118:96627c4b83d5 
Added some delay for waiting to receive response of query.

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 105:2fd212f8da61 24 UDPSocket::UDPSocket(NetworkStack *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 105:2fd212f8da61 29 int UDPSocket::open(NetworkStack *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 96:656011e49d9f 34 int UDPSocket::sendto(const char *host, uint16_t port, const void *data, unsigned size)
Christopher Haster 96:656011e49d9f 35 {
Christopher Haster 96:656011e49d9f 36 SocketAddress addr(_iface, host, port);
Christopher Haster 96:656011e49d9f 37 if (!addr) {
Christopher Haster 96:656011e49d9f 38 return NSAPI_ERROR_DNS_FAILURE;
Christopher Haster 96:656011e49d9f 39 }
Christopher Haster 96:656011e49d9f 40
Christopher Haster 96:656011e49d9f 41 return sendto(addr, data, size);
Christopher Haster 79:43a7e8c0d6cc 42 }
Christopher Haster 79:43a7e8c0d6cc 43
Christopher Haster 80:9c6673c93082 44 int UDPSocket::sendto(const SocketAddress &address, const void *data, unsigned size)
Christopher Haster 79:43a7e8c0d6cc 45 {
Christopher Haster 82:97d166c4a193 46 mbed::Timer timer;
Christopher Haster 82:97d166c4a193 47 timer.start();
Christopher Haster 118:96627c4b83d5 48 mbed::Timeout timeout;
Christopher Haster 118:96627c4b83d5 49 if (_timeout >= 0) {
Christopher Haster 118:96627c4b83d5 50 timeout.attach_us(&Socket::wakeup, _timeout * 1000);
Christopher Haster 118:96627c4b83d5 51 }
Christopher Haster 82:97d166c4a193 52
Christopher Haster 82:97d166c4a193 53 while (true) {
Christopher Haster 82:97d166c4a193 54 if (!_socket) {
Christopher Haster 82:97d166c4a193 55 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 82:97d166c4a193 56 }
Christopher Haster 82:97d166c4a193 57
Christopher Haster 82:97d166c4a193 58 int sent = _iface->socket_sendto(_socket, address, data, size);
Christopher Haster 115:950b19eb0f02 59 if (sent != NSAPI_ERROR_WOULD_BLOCK
Christopher Haster 118:96627c4b83d5 60 || (_timeout >= 0 && timer.read_ms() >= _timeout)) {
Christopher Haster 82:97d166c4a193 61 return sent;
Christopher Haster 82:97d166c4a193 62 }
Christopher Haster 116:bc043343d753 63
Christopher Haster 116:bc043343d753 64 __WFI();
Christopher Haster 79:43a7e8c0d6cc 65 }
Christopher Haster 79:43a7e8c0d6cc 66 }
Christopher Haster 79:43a7e8c0d6cc 67
Christopher Haster 79:43a7e8c0d6cc 68 int UDPSocket::recvfrom(SocketAddress *address, void *buffer, unsigned size)
Christopher Haster 79:43a7e8c0d6cc 69 {
Christopher Haster 82:97d166c4a193 70 mbed::Timer timer;
Christopher Haster 82:97d166c4a193 71 timer.start();
Christopher Haster 118:96627c4b83d5 72 mbed::Timeout timeout;
Christopher Haster 118:96627c4b83d5 73 if (_timeout >= 0) {
Christopher Haster 118:96627c4b83d5 74 timeout.attach_us(&Socket::wakeup, _timeout * 1000);
Christopher Haster 118:96627c4b83d5 75 }
Christopher Haster 82:97d166c4a193 76
Christopher Haster 82:97d166c4a193 77 while (true) {
Christopher Haster 82:97d166c4a193 78 if (!_socket) {
Christopher Haster 82:97d166c4a193 79 return NSAPI_ERROR_NO_SOCKET;
Christopher Haster 82:97d166c4a193 80 }
Christopher Haster 82:97d166c4a193 81
Christopher Haster 82:97d166c4a193 82 int recv = _iface->socket_recvfrom(_socket, address, buffer, size);
Christopher Haster 115:950b19eb0f02 83 if (recv != NSAPI_ERROR_WOULD_BLOCK
Christopher Haster 118:96627c4b83d5 84 || (_timeout >= 0 && timer.read_ms() >= _timeout)) {
Christopher Haster 82:97d166c4a193 85 return recv;
Christopher Haster 82:97d166c4a193 86 }
Christopher Haster 116:bc043343d753 87
Christopher Haster 116:bc043343d753 88 __WFI();
Christopher Haster 79:43a7e8c0d6cc 89 }
Christopher Haster 79:43a7e8c0d6cc 90 }