Function GetSocketError

examples/trivial_signaling_client.cpp:27–27

	constexpr SOCKET INVALID_SOCKET = -1;
	inline void closesocket( SOCKET s ) { close(s); }
	inline int GetSocketError() { return errno; }
	inline bool IgnoreSocketError( int e )
	{
		return e == EAGAIN || e == ENOTCONN || e == EWOULDBLOCK;