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mosquittopp.cpp
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mosquittopp.cpp
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#include <iostream>
#include "mosqpp_client.h"
#define CLIENT_ID "Client_ID"
#define DEFAULT_MQTT_HOST "127.0.0.1"
#define DEFAULT_MQTT_PORT 1883
#define DEFAULT_MQTT_TOPIC "EXAMPLE_TOPIC"
void usage(char *argv0)
{
fprintf(stderr,
"Usage: %s [-h host] [-p port]\n", argv0);
exit(1);
}
int main(int argc, char *argv[])
{
int rc;
mosqpp_client *client;
char *host = NULL;
char client_id[] = CLIENT_ID;
int port = DEFAULT_MQTT_PORT;
// Parse options
for (int i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-h"))
{
if (i == argc - 1) {
fprintf(stderr, "Error: -h argument given but no host specified.");
return 1;
}
else {
host = _strdup(argv[i + 1]);
}
i++;
}
else if (!strcmp(argv[i], "-p"))
{
if (i == argc - 1) {
fprintf(stderr, "Error: -p argument given but no port specified.");
return 1;
}
else {
port = atoi(argv[i + 1]);
}
i++;
}
else
{
usage(argv[0]);
}
}
mosqpp::lib_init();
if (host == NULL)
{
client = new mosqpp_client(client_id, DEFAULT_MQTT_HOST, port);
}
else
{
client = new mosqpp_client(client_id, host, port);
}
while (1)
{
rc = client->loop();
if (rc)
{
client->reconnect();
}
else
client->subscribe(NULL, DEFAULT_MQTT_TOPIC);
}
mosqpp::lib_cleanup();
free(host);
return 0;
}