comment on

> # I'm not sure the following is necessary?
> return unless vec($rfd,fileno($fh),1);

select() allows you to check for many file descriptors at once by adding each fd into the $rfd vector. The $rfd gets modified by select() to let you know which file descriptors are available.

The second line of code here verifies that the file descriptor you asked about is one that's ready.

In reply to Re^2: Non blocking read on a filehandle by Anonymous Monk
in thread Non blocking read on a filehandle by odie

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.


laziness, impatience, and hubris
	PerlMonks