Hello David and all, I have a few (noob) questions about the UDP example Smalltalk program. More questions likely to follow as I come up to speed. Your patience is much appreciated David and everybody.
QUESTIONS: • Is "_" the preferred assignment operator? I've been seeing ":=" too. I don't have a back arrow on my keyboard. I guess the PARC people used "_". • Does statement 1) assign the destination IP address? Note that for my application, the source and destination addresses will be different. • Does statement 3) populate the (UDP) datagram socket with the message, port, and address? Why a "#" symbol prefixing the message string, 'hello world'? • Does statement 4) create a listening socket? • Does statement 5) trigger the send? • Does statement 6) block until the UDP response? +---------------------------------------------------------+ UDP Smalltalk (example) program: 1) h _ Sockets.SocketAddress createLoopbackHost. 2) s _ Sockets.DatagramSocket new. 3) d _ Sockets.Datagram data:#'hello world' address:h port:13. 4) answer _ Sockets.Datagram new. 5) s nextPut:d. 6) s receive:answer. 7) (answer data) asString printNl. 8) s close. Gary Highberger On Sun, Jan 10, 2021, 8:48 AM Gary Highberger <gary.highber...@gmail.com> wrote: > Good morning David, > > I'm not familiar with 'daytime' but will come up to speed on it and get it > and your use cases running and report my findings for everybody to see. > > Hopefully netTest.c explains what I'm trying to do with Smalltalk. It's > very short and simple. > > https://www.dropbox.com/s/xc23wj6r5aqh153/netTest.c?dl=0 > > I used my cell phone as the destination, my home WiFi as the network, and > tcpdump to see the packet. > > Thank you David for the Smalltalk code fragments and introducing me to > inetd and 'daytime'. > > Gary Highberger > > >
