Here is an idea on providing timeouts for socket operations.
1) Add an optional extra parameter to the open() call when "n" is the option,
which would specify the timeout; for example
sock := open("www.google.com:80", "n", 10)
would fail after about 10 seconds on a timeout, in which case &errno would be
set to EINTR - this would allow a timeout to be distinguished from other
causes of failure.
2) Add a timeout parameter to the sysread() call, which does low-level i/o on
a file; for example
str := sysread(sock, 1024, 10)
would specify a timeout of 10 seconds; &errno to be set as before.
3) Add a new function to mirror sysread, syswrite, which would include timeout
functionality :-
syswrite(sock, str, 10)
Any thoughts?
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