is-open
xod-dev/esp8266-mcu/is-open
Checks if a TCP connection is open
is-open
@/is-open
Checks if a TCP connection is open
SOCKxod/net/socket
A socket
INET@/esp8266-mcu-inet
An internet connection
CHKpulse
Perform the check
Npulse
Pulses if the connection is closed
Ypulse
Pulses if the connection is open
C++ implementation
#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_CHK
node {
void evaluate(Context ctx) {
if (!isInputDirty<input_CHK>(ctx))
return;
auto socketIdx = getValue<input_SOCK>(ctx);
auto inet = getValue<input_INET>(ctx);
auto client = inet.sockets[socketIdx];
if (client->connected()) {
emitValue<output_Y>(ctx, 1);
} else {
emitValue<output_N>(ctx, 1);
}
}
}