quintptr Container::getIdElementByIndex(uint index) const
{
const PElement e = getElementByIndex(index);
if (!e)
return 0;
return e->getId();
}
/**
* Parses a line of data given to a control channel.
* @param pClient the client of the channel
* @param argIx array with start index of each argument
* @param argCount number of arguments
* @return 0 on success, a negative value otherwise
*/
static int ctrlParse(ClientElem_t *pClient, int *argIx, int argCount, int cmdlen) {
int res = -1;
char *pCmd = pClient->cmdbuf;
switch (pCmd[0]) {
/* Identify this control channel */
case 'I': {
SEND("%i", getIndexByElement(pClient))
res = 0;
break;
}
/* Attach this channel to given control channel and make it a data channel */
case 'A': {
int ix = atoi(&pCmd[argIx[1]]);
ClientElem_t *pOtherClient = getElementByIndex(ix);
if (pOtherClient == NULL) {
SEND("ERROR no such channel")
} else if (pClient == pOtherClient) {
SEND("ERROR cannot attach to self")
} else if (pOtherClient->portNumerator == -1) {
SEND("ERROR channel not connected to device")
} else {
pClient->serialHdl = pOtherClient->serialHdl;
pClient->portNumerator = pOtherClient->portNumerator;
pClient->type = TYPE_DATA;
res = 0;
}
break;
}
/* List devices */
case 'L': {
res = listDevices(pClient);
break;
}
/* Open device */
case 'O': {
if (openDevice(pClient, argIx, argCount, cmdlen) >= 0) {
res = 0;
}
break;
}
/* Configure UART */
case 'U': {
res = setUART(pClient, argIx, argCount);
break;
}
/* Kill client, close device */
case 'C': {
DBG_PRINT("Killing client");
pClient->running = 0;
res = 0;
break;
}
/* Kill server */
case 'X': {
DBG_PRINT("Killing server");
g_serverRunning = 0;
res = 0;
break;
}
default: {
SEND("ERROR unkown command: %s", pCmd)
}
}
if (res == 0) {
SEND("OK")
}
return res;
}
