mirror of
https://github.com/eclipse/paho.mqtt-sn.embedded-c.git
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Latest updates - qos1 publish sample
This commit is contained in:
Ian Craggs
@@ -1,2 +1,3 @@
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gcc -Wall qos0pub.c -I ../src ../src/MQTTSNSerializePublish.c ../src/MQTTSNPacket.c ../src/MQTTSNConnectClient.c -o qos0pub -Os -s
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gcc -Wall qos-1pub.c -I ../src ../src/MQTTSNSerializePublish.c ../src/MQTTSNPacket.c -o qos-1pub -Os -s
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gcc -Wall qos1pub.c -I ../src ../src/MQTTSNSerializePublish.c ../src/MQTTSNDeserializePublish.c ../src/MQTTSNPacket.c ../src/MQTTSNConnectClient.c -o qos1pub -Os -s
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195
samples/qos1pub.c
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195
samples/qos1pub.c
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@@ -0,0 +1,195 @@
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/*******************************************************************************
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* Copyright (c) 2014 IBM Corp.
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*
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* and Eclipse Distribution License v1.0 which accompany this distribution.
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*
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* The Eclipse Public License is available at
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* http://www.eclipse.org/legal/epl-v10.html
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* and the Eclipse Distribution License is available at
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* http://www.eclipse.org/org/documents/edl-v10.php.
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*
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* Contributors:
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* Ian Craggs - initial API and implementation and/or initial documentation
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*******************************************************************************/
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#include "MQTTSNPacket.h"
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#include <sys/types.h>
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#if !defined(SOCKET_ERROR)
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/** error in socket operation */
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#define SOCKET_ERROR -1
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#endif
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#if defined(WIN32)
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/* default on Windows is 64 - increase to make Linux and Windows the same */
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#define FD_SETSIZE 1024
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#define MAXHOSTNAMELEN 256
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#define EAGAIN WSAEWOULDBLOCK
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#define EINTR WSAEINTR
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#define EINVAL WSAEINVAL
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#define EINPROGRESS WSAEINPROGRESS
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#define EWOULDBLOCK WSAEWOULDBLOCK
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#define ENOTCONN WSAENOTCONN
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#define ECONNRESET WSAECONNRESET
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#define ioctl ioctlsocket
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#define socklen_t int
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#else
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#define INVALID_SOCKET SOCKET_ERROR
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#include <sys/socket.h>
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#include <sys/param.h>
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#include <sys/time.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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#endif
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#if defined(WIN32)
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#include <Iphlpapi.h>
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#else
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#include <sys/ioctl.h>
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#include <net/if.h>
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#endif
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int Socket_error(char* aString, int sock)
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{
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#if defined(WIN32)
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int errno;
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#endif
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#if defined(WIN32)
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errno = WSAGetLastError();
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#endif
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if (errno != EINTR && errno != EAGAIN && errno != EINPROGRESS && errno != EWOULDBLOCK)
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{
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if (strcmp(aString, "shutdown") != 0 || (errno != ENOTCONN && errno != ECONNRESET))
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{
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int orig_errno = errno;
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char* errmsg = strerror(errno);
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printf("Socket error %d (%s) in %s for socket %d\n", orig_errno, errmsg, aString, sock);
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}
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}
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return errno;
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}
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int sendPacketBuffer(int asocket, char* host, int port, unsigned char* buf, int buflen)
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{
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struct sockaddr_in cliaddr;
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int rc = 0;
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memset(&cliaddr, 0, sizeof(cliaddr));
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cliaddr.sin_family = AF_INET;
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cliaddr.sin_addr.s_addr = inet_addr(host);
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cliaddr.sin_port = htons(port);
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if ((rc = sendto(asocket, buf, buflen, 0, (const struct sockaddr*)&cliaddr, sizeof(cliaddr))) == SOCKET_ERROR)
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Socket_error("sendto", asocket);
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else
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rc = 0;
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return rc;
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}
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int mysock = 0;
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char *host = "127.0.0.1";
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int port = 1884;
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int getdata(unsigned char* buf, size_t count)
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{
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int rc = recvfrom(mysock, buf, count, 0, NULL, NULL);
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//printf("received %d bytes count %d\n", rc, (int)count);
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return rc;
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}
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int main(int argc, char** argv)
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{
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int rc = 0;
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unsigned char buf[200];
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int buflen = sizeof(buf);
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MQTTSN_topicid topic;
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unsigned char* payload = (unsigned char*)"mypayload";
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int payloadlen = strlen((char*)payload);
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int len = 0;
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int dup = 0;
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int qos = 1;
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int retained = 0, packetid = 1;
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char *topicname = "a long topic name";
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MQTTSNPacket_connectData options = MQTTSNPacket_connectData_initializer;
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if (argc > 1)
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host = argv[1];
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if (argc > 2)
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port = atoi(argv[2]);
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printf("Sending to hostname %s port %d\n", host, port);
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mysock = socket(AF_INET, SOCK_DGRAM, 0);
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if (mysock == INVALID_SOCKET)
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rc = Socket_error("socket", mysock);
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options.clientID.cstring = "myclientid";
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len = MQTTSNSerialize_connect(buf, buflen, &options);
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rc = sendPacketBuffer(mysock, host, port, buf, len);
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/* wait for connack */
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if (MQTTSNPacket_read(buf, buflen, getdata) == MQTTSN_CONNACK)
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{
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int connack_rc = -1;
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if (MQTTSNDeserialize_connack(&connack_rc, buf, buflen) != 1 || connack_rc != 0)
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{
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printf("Unable to connect, return code %d\n", connack_rc);
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goto exit;
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}
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else
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printf("connected rc %d\n", connack_rc);
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}
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else
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goto exit;
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/* publish with short name */
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topic.type = MQTTSN_TOPIC_TYPE_SHORT;
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memcpy(topic.data.name, "tt", 2);
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len = MQTTSNSerialize_publish(buf, buflen - len, dup, qos, retained, packetid,
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topic, payload, payloadlen);
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rc = sendPacketBuffer(mysock, host, port, buf, len);
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/* wait for puback */
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if (MQTTSNPacket_read(buf, buflen, getdata) == MQTTSN_PUBACK)
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{
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unsigned short packet_id, topic_id;
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unsigned char returncode;
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if (MQTTSNDeserialize_puback(&topic_id, &packet_id, &returncode, buf, buflen) != 1 || returncode != MQTTSN_RC_ACCEPTED)
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printf("Unable to publish, return code %d\n", returncode);
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else
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printf("puback received, id %d\n", packet_id);
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}
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else
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goto exit;
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len = MQTTSNSerialize_disconnect(buf, buflen, 0);
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rc = sendPacketBuffer(mysock, host, port, buf, len);
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exit:
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rc = shutdown(mysock, SHUT_WR);
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rc = close(mysock);
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return 0;
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}
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