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CITY3032-wifi-mqtt
src/MQTTNetwork.h
- Committer:
- reedas
- Date:
- 2021-11-13
- Revision:
- 3:62825c5f3cd7
File content as of revision 3:62825c5f3cd7:
/* * Copyright (c) 2019, ARM Limited, All Rights Reserved * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef _MQTTNETWORK_H_ #define _MQTTNETWORK_H_ #include "NetworkInterface.h" #include "TCPSocket.h" class MQTTNetwork { public: MQTTNetwork(NetworkInterface *aNetwork) : network(aNetwork) { socket = new TCPSocket(); } ~MQTTNetwork() { delete socket; } int read(unsigned char *buffer, int len, int timeout) { int ret = socket->recv(buffer, len); if (ret == 0) { // A receive size of 0 indicates that the socket // was successfully closed so indicate this to MQTTClient ret = -1; } return ret; } int write(unsigned char *buffer, int len, int timeout) { int ret = socket->send(buffer, len); if (ret == 0) { // The socket is closed so indicate this to MQTTClient return -1; } return ret; } int connect(const char *hostname, int port) { int ret = NSAPI_ERROR_OK; if ((ret = socket->open(network)) != NSAPI_ERROR_OK) { return ret; } SocketAddress addr; if (network->gethostbyname(hostname, &addr) != NSAPI_ERROR_OK) { return NSAPI_ERROR_DNS_FAILURE; } addr.set_port(port); return socket->connect(addr); } int disconnect() { return socket->close(); } private: NetworkInterface *network; TCPSocket *socket; }; #endif // _MQTTNETWORK_H_