BrowserUK, I certainly would benefit from an explanation ... in this thread or in a separate one (referenced from here) ... as to what the “granularity” of the lock semantics in Perl actually are. “What, exactly, is ‘the thing that you can lock?’” Is it .. a data item? .. the hash-structure itself? .. a particular reference-point? This subtle point is, to me, the essential question here, and I do not know the answer, but I am quite certain that you do.
The objective of “locking a data-structure in Perl” is certainly not a simple one, given that the entire data management system is centered around the notion of “references.” There is no hierarchy ... anything can refer to anything, and those references can come both from language-variables and from the various data items themselves. The implementation has to have made certain decisions ... simplifications. I’d very much like to hear you elucidate what they are.
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||