Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

It makes no sense to use sysread on a file handle with the :utf8 layer because the read might have ended mid-character.

sysread-using code should look something like this:

binmode($fh); # Or open with :raw my $buf = ''; while (1) { # Or this could be a select loop. my $rv = sysread($fh, $buf, BLOCK_SIZE, length($buf); die($!) if !defined($rv); last if !$rv; # Identify and extract message. # Using LF-terminated messages in this example. while (s/^([^\n]*)\n//) { my $msg = $1; process_message($msg); } } die("Premature EOF") if length($buf);

In your case, you just want to blindly forward everything you receive, so simply avoid decoding or encoding!

binmode($fh_in); # Or open with :raw binmode($fh_out); # Or open with :raw while (1) { # Or this could be a select loop. my $rv = sysread($fh, my $buf, BLOCK_SIZE, length($buf); die($!) if !defined($rv); last if !$rv; print($fh_out $buf); }

In reply to Re: sysread() is deprecated on :utf8 handles by ikegami
in thread sysread() is deprecated on :utf8 handles by mje

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others rifling through the Monastery: (4)
As of 2023-01-31 23:48 GMT
Find Nodes?
    Voting Booth?

    No recent polls found