open-tcp
xod/w5500/open-tcp
Open a TCP connection to the specified server
open-tcp
@/open-tcp
Open a TCP connection to the specified server
INET@/w5500-inet
An internet connection
SRVstring
Server name
PORTnumber
A destination server port number
CONNpulse
Open the connection
ERRpulse
Pulses when opening failed
DONEpulse
Pulses when the connection is successfully open
SOCKxod/net/socket
The socket connected
C++ implementation
{{#global}}
#include <SPI.h>
#include <Ethernet2.h>
{{/global}}
struct State {
};
{{ GENERATED_CODE }}
void evaluate(Context ctx) {
if (!isInputDirty<input_CONN>(ctx))
return;
auto client = EthernetClient();
auto serverName = getValue<input_SRV>(ctx);
auto port = getValue<input_PORT>(ctx);
auto len = length(serverName);
char serverNameBuff[len + 1];
dump(serverName, serverNameBuff);
serverNameBuff[len] = '\0';
if (client.connect(serverNameBuff, port)) {
emitValue<output_DONE>(ctx, 1);
} else {
emitValue<output_ERR>(ctx, 1);
}
emitValue<output_SOCK>(ctx, client.getSocketNumber());
}