I've changed 'print'. The problem is not with print or sysread/syswrite. The problem is with a 'select' call.

...
while( my @ready = $client->can_read ) {
    warn "Inside";
    for my $fh (@ready) {
...

[download]
Output: 
-bash-2.05b$ ./teletype.pl 
Inside at ./teletype.pl line 13.
Accepted new socket
Inside at ./teletype.pl line 13.
aInside at ./teletype.pl line 13.
aInside at ./teletype.pl line 13.
aInside at ./teletype.pl line 13.
Inside at ./teletype.pl line 13.

^C
-bash-2.05b$

[download]
It looks correct but I get 
Inside at ./teletype.pl line 13.
aInside at ./teletype.pl line 13.
aInside at ./teletype.pl line 13.
aInside at ./teletype.pl line 13.
Inside at ./teletype.pl line 13.

[download]
only after a press 'enter' in telnet.
I'll have a look in IO::Select. It waits for a newline when can_read is executed. The input must be still buffered.

Cheers

In reply to Re^8: A non-blocking server using 'select' calls by nikos
in thread A non-blocking server using 'select' calls by nikos

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