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[ch1668] UDP socket validity check #766

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[ch1668] UDP socket validity check #766

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72544b7
Update spark_wiring_udp.cpp
aledand Dec 14, 2015
c1b8e7f
Update spark_wiring_udp.h
aledand Dec 14, 2015
2d82561
Update spark_wiring_udp.cpp
aledand Dec 14, 2015
0174e48
Update spark_wiring_udp.h
aledand Dec 14, 2015
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7 changes: 7 additions & 0 deletions wiring/inc/spark_wiring_udp.h
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Original file line number Diff line number Diff line change
Expand Up @@ -232,6 +232,13 @@ class UDP : public Stream, public Printable {
* @return Return the result of the leave operation
*/
int leaveMulticast(const IPAddress& ip);

/*
* let client code to check for socket validity
* @return True for a valid socket.
*/
bool isValid();


using Print::write;
};
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5 changes: 5 additions & 0 deletions wiring/src/spark_wiring_udp.cpp
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Expand Up @@ -261,3 +261,8 @@ int UDP::leaveMulticast(const IPAddress& ip)
HAL_IPAddress address = ip.raw();
return socket_leave_multicast(&address, _nif, 0);
}

bool UDP::isValid()
{
return _sock != socket_handle_invalid();
}