/********************************************************************
* receive_handler: *
* thread that handles all incoming communication from the server *
********************************************************************/
void *receive_handler(void *arg)
{
printf("receive thread created\n");
int socket_desc;
struct sockaddr_in server;
//Create socket
socket_desc = socket(AF_INET , SOCK_STREAM , 0);
if (socket_desc == -1)
error("Could not create socket");
//Prepare the sockaddr_in structure
server.sin_family = AF_INET;
server.sin_port = htons(SERVER_PORT);
server.sin_addr.s_addr = inet_addr(getServerIp());
int read_size = 0;
/****************** Receiving superloop ******************/
while(1)
{
printf("Connecting to server...\n");
while( connect(socket_desc, (struct sockaddr*)&server, sizeof(server)) < 0 )
{
printf("Connection failed, retry in 5 seconds\n");
sleep(5);
}
printf("Connected!\n");
// Continuously read from server while connection is active
while( (read_size = recv(socket_desc , messageFromServer , MSG_SIZE , 0)) > 0 )
{
messageFromServer[read_size] = '\0';
printf("Server-->Pi: %s\n", messageFromServer);
parseServerMessage();
}
// Server disconnection
if(read_size == 0)
{
printf("Server disconnected\n");
}
else if(read_size == -1)
{
error("recv failed\n");
}
// Close then reinit the socket and attempt reconnect to server
close(socket_desc);
socket_desc = socket(AF_INET , SOCK_STREAM , 0);
}
return 0;
}
int main(void)
{
Clear_home();
initBuffer();
rBuf = readBuffer;
wBuf = writeBuffer;
(void) Cconws("STiNG test...\r\n");
BYTE found = Supexec (find_STiNG);
if(!found) {
sleep(3);
return 0;
}
getServerIp();
WORD whichTests = 0;
while(whichTests == 0) {
showMenu();
char req = Cnecin();
if(req >= 'A' && req <= 'Z') req += 32; // to upper case
if(req == 'q') break; // quit
switch(req) {
case 'a': // all tests
whichTests = 0xffff;
break;
case 's':
whichTests = 0x8000;
break;
case '0':
case '1':
case '2':
case '3':
whichTests = 1 << (req - '0');
}
}
if(whichTests & 1) doTest00();
if(whichTests & 2) doTest01();
if(whichTests & 4) doTest02();
if(whichTests & 8) doTest03();
if(whichTests & 0x8000) doSpeedTest();
if(whichTests != 0) writeBufferToFile();
deinitBuffer();
sleep(3);
return 0;
}
int sendMessage(const char* str, int len)
{
if(len < 1)
error("Message length < 1");
if(len != strlen(str))
printf("WARNING: length of string does not match length passed to function\n");
int socket_desc; // socket fd
struct sockaddr_in server; // server info to connect to
//Create a TCP socket
socket_desc = socket(AF_INET , SOCK_STREAM , 0);
if (socket_desc == -1)
error("Could not create socket\n");
//Prepare the sockaddr_in structure
server.sin_family = AF_INET;
server.sin_port = htons(SERVER_PORT); // Set port number to connect to
server.sin_addr.s_addr = inet_addr(getServerIp());
// Attempt connection
if( connect(socket_desc, (struct sockaddr*)&server, sizeof(server)) < 0)
{
printf("sendMessage: Cannot connect to server\n");
return 0;
}
else // Connection succeeded
{
printf("Pi-->Server: %s\n", str); //Debug printf
if(write(socket_desc, str, len) < 1)
error("Writing to socket");
// Close and reinitialize the socket descriptor
if(close(socket_desc) < 0)
error("Closing socket");
}
return 1;
}
