void postToServer(char* host, int portno, char* message)
{
struct hostent *server;
struct sockaddr_in serv_addr;
int sockfd, bytes, sent, received, total;
char response[4096];
//printf("Request:\n%s\n",message);
/* create the socket */
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0)
{
putError("ERROR opening socket");
return;
}
/* lookup the ip address */
server = gethostbyname(host);
if (server == NULL)
{
putError("ERROR no such host");
return;
}
/* fill in the structure */
memset(&serv_addr,0,sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(portno);
memcpy(&serv_addr.sin_addr.s_addr,server->h_addr,server->h_length);
/* connect the socket */
if (connect(sockfd,(struct sockaddr *)&serv_addr,sizeof(serv_addr)) < 0)
{
putError("ERROR connecting");
return;
}
/* send the request */
total = strlen(message);
sent = 0;
do {
bytes = write(sockfd,message+sent,total-sent);
if (bytes < 0)
{
putError("ERROR writing message to socket");
return;
}
if (bytes == 0)
break;
sent+=bytes;
} while (sent < total);
/* receive the response */
memset(response,0,sizeof(response));
total = sizeof(response)-1;
received = 0;
do {
bytes = read(sockfd,response+received,total-received);
if (bytes < 0)
{
putError("ERROR reading response from socket");
return;
}
if (bytes == 0)
break;
received+=bytes;
} while (received < total);
if (received == total)
{
putError("ERROR storing complete response from socket");
return;
}
/* close the socket */
close(sockfd);
/* process response */
//printf("Response:\n%s\n",response);
}
int main()
{
int i, n,
cport_nr=16, /* /dev/ttyUSB0 (COM1 on windows) */
bdrate=9600; /* 9600 baud */
unsigned char buf[ARDUINOBUFFER];
char mode[]={'8','N','1',0};
if(RS232_OpenComport(cport_nr, bdrate, mode))
{
putError("Can not open serial port");
return(0);
}
char* result[2];
result[0] = malloc(BUFFER_SIZE);
result[1] = malloc(BUFFER_SIZE);
regex_t r;
const char * regex_text;
regex_text = "([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)";
int cr = compile_regex(& r, regex_text);
if (cr != 0)
{
return cr;
}
float humidities[COUNTPERMINUTE];
float temperatures[COUNTPERMINUTE];
long attempts = 0;
char t[16], h[16];
char currentMeasurement[64];
while(1)
{
n = RS232_PollComport(cport_nr, buf, ARDUINOBUFFER-1);
if(n > 0)
{
buf[n] = 0; /* always put a "null" at the end of a string! */
for(i=0; i < n; i++)
{
if(buf[i] < 32) /* replace unreadable control-codes by dots */
{
buf[i] = '.';
}
}
//printf("received %i bytes: %s\n", n, (char *)buf);
int success = match_regex(& r, (char*)buf, result);
if (success == 0)
{
attempts++;
sprintf(currentMeasurement, "Temperature %s Humidity %s", result[0], result[1]);
//puts(currentMeasurement);
syslog(LOG_INFO, currentMeasurement);
int idx = attempts % COUNTPERMINUTE;
humidities[idx] = atof(result[1]);
temperatures[idx] = atof(result[0]);
if (idx == 0 && attempts>=COUNTPERMINUTE)
{
float sumTemp, sumHum;
int u = 0;
for (u=0; u< COUNTPERMINUTE; u++)
{
sumTemp += temperatures[u];
sumHum += humidities[u];
}
sprintf(t, "%.2lf",sumTemp/COUNTPERMINUTE);
sprintf(h, "%.2lf",sumHum/COUNTPERMINUTE);
// printf("Avg Temperature %s Humidity %s\r\n", t, h);
postWeather(t,h,"AF993B68-0EF7-4842-8A36-8FD03A695456");
sumTemp = 0;
sumHum = 0;
}
}
else
{
putError("Can not parse response");
putError((char*)buf);
}
}
usleep(100000); /* sleep for 100 milliSeconds */
}
regfree (& r);
return(0);
}
// Handles error when token is unexepcted
void accept(tokenType expectedType, char* errorMessage){
if (expectedType != spToken.type)
putError(errorMessage);
}
