Re max_length. Let's say I'm writing a module Amusement::Park which has a list of Amusement::Rides. Each Amusement::Ride has an associated Q. (This is a popular amusement park.) I'm writing the Amusement::Park but have no control over the Amusement::Rides, so don't initialise the Q objects. Good amusement park management says I need to point customers at rides with the least busy queues. To do this I need to calculate length ÷ max_length.

A use case for is_full is that say I generate events of multiple levels of importance: say errors, warnings and debugging messages. If the queue is full, I might choose to silently drop debugging messages rather than being blocked. Or there might be several queues I could potentially add an item to, and I wish to choose one that is not full..

peek/peek_all - there may be several producers but only one consumer, so no danger of peeking a value but somebody else dequeueing it.

In reply to Re^3: Testing methodology by tobyink
in thread Testing methodology by BrowserUk

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


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.